ML20100P989
| ML20100P989 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 03/02/1996 |
| From: | Dole F FLORIDA POWER CORP. |
| To: | |
| References | |
| NUDOCS 9603110439 | |
| Download: ML20100P989 (163) | |
Text
. - - . . . . - . . . -- . _ .-__ .
l l Document Transmittal #: 41813 Date: 3/2/96 Tc: NRC RES INSPECTOR MAC: NSCC Destination:
Description:
Copy Copy Totals Document: Revision: Comment: # INFO CNTL MSTR OPO404 98 EDITORIAL 8 1 0 0 l
l l
l l
I Instructions to the Addressee: ,
1 Please verify the document (s) received agrees with the above information. Be sure to destroy document (s) er portions of document (s) superseded by the above.
The signature indicates acknowledgment of receipt of the above document (s). Retum signed and dated transmittal to Document Control within 20 days at mail code:
NA1C Florida Power Corporation
- "**"' ""^'
070006 Crystal River Energy Complex 15760 W. Power Line St. i Crystal River, FL 34428-6708 Signature of Addressee: Date:
Independent Verification: Date: [
(Control Room documents only) 0 9603110439 960302 PDR ADOCK 05000302-PDR D(
P
l l l (E) Rev. 98 Effective Date 3 f3 9 le ..
i I
i -
l l
~
DOCufflefit MIM NFORMC. ATION R. Nuclear ONL -
a ;
1 1
1 OPERATING PROCEDURE OP-404 FLORIDA POWER CORPORATION l l
CRYSTAL RIVER UNIT 3 i i
l i ,A DECAY HEAT REMOVAL SYSTEM i (' l i
l
! l THIS PROCEDURE ADDRESSES SAFETY RELATED COMPONENTS I l
t t
I t
I l
_ APPROVED BY: Interpretation Contact
- b o s / D A /# /77H
- (SIGNATURE ON FILE)
I' DATE: T- 2 ' P4 INTERPRETATION CONTACT: Manager, Nuclear Operations Support l
I TABLE OF CONTENTS 1.0 PURPOSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Lg_ REFERENCES .......................... 2 2.1 IMPLEMENTING REFERENCES . . . . . . . . . . . . . . . 2 2.2 DEVELOPMENTAL REFERENCES .. . . . . . . . . . . . . . 2 3.0 PERSONNEL IND0CTRINATION ................... 5 3.1 SETPOINTS . . . . . . . . . . . . . . . . . . . . . . 5 3.2 LIMITS AND PRECAUTIONS ............... 6 4.0 INSTRUCTIONS ......................... 14 4.1 INITIAL CONDITIONS ................. 14 4 4.2 INITIAL FILLING AND VENTING OF DECAY HEAT CCC SYSTEM ....................... 15 l 4.3 FILLING AND VENTING DNP-1A/"A" DECAY HEAT TRAIN . . . 18 4.4 FILLING AND VENTING DNP-1B "B" DECAY HEAT TRAIN . . . 19 l 4.5 ESTABLISHING DECAY HEAT REMOVAL . . . . . . . . . . . 20 4.5.1 Initial Conditions ............ EO 4.6 ALTERNATING DECAY HEAT TRAINS . . . . . . . . . . . . 33 l 4.7 RESTARTING DECAY HEAT REMOVAL AFTER PUMP TRIP . . . . 45 i 4.8 PLACING DCHE-1A IN LAYUP .............. 52 4.9 PLACING DCHE-1B IN LAYUP .............. 54 i 4.10 DECAY HEAT SYSTEM PURIFICATION USING MAKEUP &
l PURIFICATION SYSTEM . . . . . . . . . . . . . . . . . 56 4.11 DECAY HEAT SYSTEM PURIFICATION USING SPENT FUEL SYSTEM ....................... 58 4.12 DH OPERATION DURING A LOCA .............. 61 4.13 LONG-TERM POST-ACCIDENT COOLING . . . . . . . . . . . 75 4.14 ISOLATION AND RESTORATION OF INDIVIDUAL DECAY HEAT PUMPS AND HEAT EXCHANGERS ........... 81 4.15 DCHE ISOLATION / RESTORATION FOR MAINTENANCE ..... 88 4.16 DHCCC PUMP ISOLATION / RESTORATION FOR l MAINTENANCE . . . . . . . . . . . . . . . . . . . . . 91 4.17 FILLING THE FUEL TRANSFER CANAL: "A" DH SYSTEM IN SERVICE. "B" DH SYSTEM RECIRC 0F BWST ...... 94 4.18 FILLING THE FUEL TRANSFER CANAL: "B" DH SYSTEM IN SERVICE. "A" DH SYSTEM RECIRC OF BWST ...... 100 4.19 DRAINING FUEL TRANSFER CANAL VIA "A" DH SYSTEM ... 106 4.20 DRAINING FUEL TRANSFER CANAL VIA "B" DH SYSTEM ... 110 4.21 BWST RECIRCULATION WITH ALTERNATE SUCTION TO DECAY HEAT PUMPS .................. 114 4.22 CROS$ TIE OF DECAY HEAT FLOW TO REACTOR VESSEL
, "A" DECAY HEAT PUMP IN SERVICE ........... 118
! 4.23 CROSS TIE OF DECAY HEAT FLOW TO REACTOR VESSEL "B" DECAY HEAT PUMP IN SERVICE ...........
119 j 4.24 RAISING LEVEL IN PARTIALLY DRAINED RCS ....... 120 4.25 LOWERING LEVEL IN PARTIALLY DRAINED RCS . . . . . . . 122 4.26 BWST RECIRCULATION WITH DHP-1A ........... 124
, 4.27 BWST RECIRCULATION WITH DNP-18 ........... 126 i
L l
OP-404 Rev. 98 Page i l._
. . .. .. . . -~ - - . _ . - .
I i
l TABLE OF CONTENTS (Con't) l SECTION g 4.28 FEED AND BLEED OF DC SYSTEM FOR CHEMISTRY CONTROL . . . . . . . . . . . . . . . . . . . . . . . 128 4.29 C00LDOWN 0F PRESSURIZER WITH AUXILIARY SPRAY (RCV-53) ...................... 129 ,
4.30 SECURING DECAY HEAT REMOVAL . . . . . . . . . . . . . 131 4.31 SETTING DHP LOW AMPS ALARM SETP0 INT . . . . . . . . . 134 5.0 FOLLOW-UP ACTIONS . . . . . . . . . . . . . . . . . . . . . . . 135 6.0 RESTORATION INSTRUCTIONS ................... 136 !
ENCLOSURES 1 Valve Check List I ..................... 137 2 Val ve Check Li st II . . . . . . . . . . . . . . . . . . . . . 139 l
l 3 Valve Check List III .................... 148 4 Valve Check List IV . . . . . . . . . . . . . . . . . . . . . 153 5 DH Removal Cooler Temperature Controls ........... 154 6 Guidelines for Operating DCV-17, [DCV-18] and DCV-177,
[DCV-178] Manually ..................... 155 l
i 1
O OP-404 Rev. 98 Page 11
1.0 PURPOSE
~
1.1 To provide procedures for filling, venting, and operating the Decay Heat (DH) Removal System and the Decay Heat Closed Cycle Cooling System.
1.2 To provide procedures for filling and draining the Fuel Transfer Canal using the Decay Heat Removal System (s).
1.3 To provide instructions for raising and lowering RCS level during partially drained conditions.
\
i I
l l
)
I l
O OP-404 Rev. 98 Page 1
2.0 REFERENCES
~
2.1 IMPLEMENTIrl6 REFERENCES 2.1.1 CP-115, Nuclear Plant Tags & Tagging Orders 2.1.2 OP-402, Makeup and Purification System 2.1.3 OP-406, Spent Fuel Cooling System 2.1.4 E0P-08, LOCA Cooldown 2.1.5 OP-209, Plant Cooldown 2.1.6 SP-435, Valve Testing During Cold Shutdown 2.1.7 MP-125, Installation of Fuel Transfer Tube Covers and " Drain Line" Cover 2.1.8 FP-411, Seal Plate Inspection and Port Cover Installation
- 2.1.9 MP-122, Disassembly and Reassembly of Flanged Connections 2.1.10 OP-417, Containment Operating Procedure l V '2.1.11 CCNB, Control Center Notebook 2.1.12 OP-103B, Plant Operating Curves 2.1.13 SP-422, RC System Heatup and Cool Down Surveillance l 2.1.14 SP-301, Shutdown Daily Surveillance Log 2.1.15 E0P-11, Loss of Decay Heat Removal j l
2.1.16 SP-195, Remote Reactor Vessel Level Instrumentation Calibration i i
2.2 DEVELOPMENTAL REFERENCES
$ 2.2.1 E0P-08, LOCA Cooldown 2.2.2 E0P-07, Inadequate Core Cooling 2.2.3 OP-202, Plant Heatup 2.2.4 OP-209, Plant Cooldown 2.2.5 OP-301, Operation of the Reactor Coolant System OP-404 Rev. 98 Page 2
^ 2.2.6 DELETED 2.2.7 OP-305, Operation of the Pressurizer ,
2.2.8 OP-401, Core Flooding System 2.2.9 OP-402, Makeup and Purification System .
l 2.2.10 OP-403E, Chemical Addition System (Hydrazine System) 2.2.11- OP-405, Reactor Building Spray System 2.2.12 OP-406, Spent Fuel Cooling System 2.2.13 OP-409, Plant Ventilation Systems ;
1 2.2.14 SP-716, Reactivity Control System Chemistry Surveillance Program 2.2.15 MP-131A, Maintenance of Decay Heat Pumps 2.2.16 MP-1318, Maintenance of Building Spray Pumps ]
2.2.17 SP-301, Shutdown Daily Surveillance Log 2.2.18 SP-417, Refueling Interval Integrated Plant Response to Engineered ;
Safeguards Actuation !
2.2.19 SP-435, Valve Testing During Cold Shutdown 2.2.20 SP-456, Refueling Interval Equipment Response to an ESAS Test Signal l 2.2.21- SP-457,-Refueling Interval ECCS Response to a Safety Injection Test Signal-2.2.22 TBD, Technical Basis Document 2.2.23 SP-340A "A" Trai0 ECCS - RWP-3A, DCP-1A, and System Valve Operability Test 2.2.24 SP-340B "A" Train ECCS - DHP-1A, BSP-1A, and System Valve Operability Test 2.2.25 SP-340D "B" Train ECCS - RWP-3B, DCP-1B, and System Valve Operability Test 2.2.26 SP-340E "B" Train ECCS - DHP-18, BSP-18, and System Valve Operability Test
- 2.2.27 Design Basis Document Section 6.2, 6.3, 6.6, 6.12 2.2.28 EQ 90-2492 "DHV-13 and DHV-24 Position" OP-404 Rev. 98 Page 3
i l L i i
2.2.29 SP-195, Remote Reactor Vessel Level Instrumentation Calibration 2.2.30 AI-500, Conduct of Operations ..
2.2.31 MAR 92-08-01-01, Installation of Permanent Seal Plate i 1
l 2.2.32 E92-0223, Engineering Calculation l l l l 2.2.33 MAR 92-10-25-01, DHP Amps Alarms l 2.2.34 MAR 92-10-19-01,'RW & SW Pump Motor Cooler Vent Valves l
2-2.35
. MAR 86-09-22-01 FCN 9, Replacement of RM-L2, RM-L3, RM-L5, RM-L6, I l and RM-L7 )
2.2.36 TECH Manual #65 2.2.37 MAR 95-08-06-01, FCN 01, FCN 02, D.C. System Flow Margin Enhancement 2.2.38 PT-136B, D.C. System Flow Balance and EGDG KW Loading I
l l
O r
l l
l l
O OP-404 Rev. 98 Page 4
l 4 ,
3.0 PERSONNEL IND0CTRINATION i I j ' DESCRIPTION VALUE i 3.1 SETP0INTS l
3.1.1 Decay Heat Pump runout flow 4100 gpm 4
1 3.1.2 DH pump maximum recirculation 3700 gpm
- flow i
j 3.1.3 High flow alarm 3750 gpm 4
.i I j- 3.1.4 Low flow alarm (with HPI 2800 gpm signal)
- Low flow alarm 1500 gpm l
I 3.1.5 Flow controller setpoint 3000 gpm i
i 3.1.6 Automatic Closure Interlock' 284 PSIG Nominal (without regard for System (ACIS) instrument errors or calibration 1
DHV-3 Lowest Actuation 261 PSIG in RCS Loop A and increasing DHV-3 Lowest Reset 255 PSIG in RCS Loop A and decreasing DHV-4 Lowest Actuation 266 PSIG in RCS Loop 8 and increasing
i
. 3.1.7 RC inventory low alarm 129 FT elevation i 3.1.8 DH to PZR spray valve open DHV-91 not fully closed & RC press i alarm 1 200 PSIG
! RCV-53 is open & RC press 1 200 PSIG 1
d
)
1 OP-404 Rev. 98 Page 5
3.2 LIMITS AND PRECAUTIONS 0
7
~ ~~
LIMIT BASIS 3.2.1 Maximum DH pump flow is 4000 Prevents reaching D.H. Pump Runout j 9pm 3.2.2 The DH pumps shall be tripped To minimize cavitation damage anytime their suction supply valves _are not in the open position or evidence of cavitation (abnormal noise, fluctuating motor current or pump flow) exists 3.2.3 JE Decay heat indicated flow Minimize wear of the DH rotating is > 300 GPM and < 1400 GPM, assembly TtiEN Total time of pump operation should be limited Logged time may be reset to zero to 72 hrs for the life of following replacement of the rotating pump. Total run time at this assembly d reduced flow shall be logged in the Control Center Notebook 3.2.4 Indicated Decay heat flow of Prevents failure of )H Pump shaft
< 300 GPM should be limited and/or bearings, to < 2 hrs total accumulated life of the pump. Pump Logged time may be reset to zero operation in this range shall following the replacement of the be logged in the control rotating assembly Center Notebook Notify Maintenance Superintendent when logged hrs exceeded 1.5 hrs
\
O OP-404 Rev 98 Page 6
l l
3.2 LIMITS AND PRECAUTIONS (Cont'd)
LIMIT BASIS j 3.2.5 The following DH Pump Motor Motor winding insulation damage may Start guidelines should be result from repeated starts observed:
No more than two consecutive starts from ambient conditions with the motor attaining full speed between starts If a motor trips, has experienced two consecutive starts (less than 15 minutes run time) or is shutdown prior to attaining full speed, wait 45 minutes prior to attempting a restart Following a restart, another restart may be performed f if the motor has run 2 15 minutes 3.2.6 The following start Exceeding number of allowed starts l guidelines should be observed may cause rotor and/or stator to l for RWP-3A and RWP-3B: overheat- ,
No more than four starts in succession with motor .
initially at ambient temp and .
coasting to rest between starts Two restarts may be performed following a trip /stop after operating at rated load Run for 20 minutes at full load before additional starts O
OP-404 Rev. 98 Page 7
't 3.2 LIMITS AND PRECAUTIONS (Cont'd)
~'
LIMIT. BASIS l 3.2.7 Maintain purification flow Prevent exceeding the maximum design less than the most of components restrictive of the following; .
o One M.U. Demineralizer and One Pre / Post filter, 80 gpm o One M.U. Demineralizer and two Pre / Post filters, l 125 gpm o Two M.U. Demineralizers and two Pre / Post filters, 140 gpm 3.2.8 Maintain purification flow Prevents channeling of demin bed greater than 25 gpm reducing effectiveness Maintain D.H. cooler outlet O 3.2.9 temperature less than 135
. degrees while on DH Protects Anion resin from thermal degradation which prevents release of stored contaminants i
i purification 3.2.10 MU purification system Prevents lifting the M.U. system l pressure shall be maintained relief valves l
< 100 PSIG during DH system operation and should be secured when RCS pressure is
> 100 PSIG O
OP-404 Rev. 98 Page 8
i 3.2 LINITS AND PRECAUTIONS (Cont'd)
LIMIT BASIS 3.2.11 When the DH system is in To ensure decay heat removal from the operation, do not close Rx. Core at all times DHV-3, DHV-4, or DHV-41 unless the RC pumps and at least one OTSG are available to cool the core and DH pumps ;
are stopped :
3.2.12 The DH system shall be Prevents exceeding D.H. System isolated from the RCS system components design limits if the RC pressure is greater than 284 PSIG and/or RC temperature is greater than 300*F 3.2.13 All personnel should be clear Personnel protection and ALARA O
V of the DH pits while starting a DH or Building Spray (BS) considerations
. pump. A current Health Physics survey must be in effect prior to entering a pit l
1 3.2.14 Maximum AT across a DHCCC Prevents excessive flow restrictions !
heat exchanger (seawater in the DH RW system from fouled tubes side) may not exceed 10*F l 3.2.15 WHEN all HPI pumps are red To prevent inadvertent shutdown of tagged off and the RCS is D.H. System and minimize possible vented to atmosphere, pump cavitation damage THEN A.C.I. may be bypassed at the SSOD's discretion F
OP-404 Rev. 98 Page 9
3.2 LIMITS AND PRECAUTIONS (Cont'd)
O
LIMIT BASIS 3.2.16 During periods when the To prevent isolation of the DH System reactor vessel head is due to a spurious ACI signal removed, the following valves shall be open and their breaker control handles shall be placed in the
" Lock-Reset" position:
l
- DHV-3 ES-MCC-3Al I (Unit 3C)
DHV-4 ES-MCC-381 (Unit 11B)
DHV-41 ES-MCC-3AB (Unit 40)
These valves and breakers shall be blue-tagged to the SS0D
- DHV-3 must have breaker O
V handle locked to eye bolt on breaker cubicle door i
j 3.2.17 When the BWST is unavailable To prevent damage to the LPI pumps and a-BAST is being used for due to inadvertent ES actuation i emergency boration inventory, the following valves shall be closed and their breakers racked out:
DHV-34 ES-MCC-3Al (Unit 4C)
DHV-35 ES-MCC-3B1 (Unit 6B)
These valves and breakers shall be blue-tagged to the SSOD O
OP-404 Rev. 98 Page 10
3.2 LINITS AND PRECAUTIONS (Cont'd)
LIMIT BASIS 3.2.18 The following requirements To assure that redundant or diverse shall be met prior to DH removal methods are available removing a DH train from during all modes of plant operation service:
No more than one DH train shall be removed from service -
at any one time M
The requirements for voluntarily entering a degraded mode of operation listed in CP-115, Nuclear Plant Tags and Tagging Orders, have been met M
O The refueling transfer canal V is flooded, or at least one OTSG is available for cooling by either forced flow or natural circulation i 3.2.19 Maximum PZR level is 1 220 Low Temperature Overpressure inches whenever RCS Protection (LTOPS) temperature is 1 283*F and the reactor vessel head is not completely detensioned 3.2.20 Maintain RCS level and DHP To ensure adequate suction capability flow within the Acceptable and to prevent vortexing region of OP-103B, curves 16 and 18 3.2.21 IE RCS level indication To provide proper level indication becomes erratic or
( questionable, JHEN stop draining RCS until .
resolved OP-404 Rev. 98 Page 11
I g 3.2 LIMITS AND PRECAUTIONS (Cont'd) l O 1 LIMIT BASIS i l
l 3.2.22 Whenever the RCS is partially To prevent loss of decay heat removal 1 drained, any evolutions that capability per NRC Generic Letter i could disrupt the operation 88-17 of the operating DH, DC, or RW systems should be avoided 3.2.23 Whenever the reactor vessel To provide alternate means of level is < 132 FT, one HPI supplying RCS inventory per NRC pump should be available to Generic Letter 88-17 supply flow through its associated flowpath to the RCS. "Available" means that the flowpath is intact and that the pump can be placed in service within a short enough time to meet the -
intended need l
%) '
3.2.24 The equipment hatch should be Minimize the potential for an ,
installed within 2.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> of unmonitored airborne radioactive !
either: release per NRC Generic Letter 88-17 !
a) Loss of decay heat removal b) An inadvertent Reactor Vessel level reduction to
< 129'6" Maintenance personnel should be available at all times to install the hatch whenever it is removed 3.2.25 All containment penetrations Minimize the potential for an .
to outside atmosphere should unmonitored airborne radioactive l be capable of being closed release per NRC Generic Letter 88-17
_ within 2.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> upon a loss of decay heat removal f%
O l
l OP-404 Rev. 98 Page 12
3.2 LIMITS AND PRECAUTIONS (Cont'd)
O '
LIMIT BASIS 3.2.26 Simultaneous filling of RCS Reduces the potential for and BWST should be carefully underborated water into the core monitored 3.2.27 When going on decay heat, The DH system may not be able to high decay heat loads may be remove decay heat without a > 10*F experienced during rapid temperature rise in incores under cooldowns and SBLOCA's these conditions 3.2.28 For work located in Radiation To ensure that all personnel doses !
Controlled Areas, due are As Low As Reasonably Achievable consideration must be given to the ALARA Program. This may result in a determination that special preparations and/or precautions are necessary
)
O OP-404 Rev. 98 Page 13
l 4.0 INSTRUCTIONS
.O ~~
ACTIONS DETAILS 4.1 INITIAL CONDITIONS 4.1.1 Ensure BWST is within limits o BWST level 2 44.9 ft and of Technical Specification s 47.1 ft.
3.5.4 o BWST baron concentration 2270-3000 ppm o BWST temperature 2 40*F and i 100*F
/
Initial /Date 4.1.2 Ensure AHF-15A or AHF-158, DC Pump Air Handling Unit, is operable /
Initial /Date O 4.1.3 Ensure necessary o Flow instrumentation instrumentation and support o Pressure instrumentation I systems are available o Temperature instrumentation o Air supply to air operated DH valves o RML-5 operable o RML-6 operable i
/
Initial /Date 4.1.4 Ensure penetration cooling is o Refer to OP-417, Containment provided to penetrations 342, Operating Procedure 343, and 344
/
Initial /Date
- O OP-404 Rev. 98 Page 14
4.2 INITIAL FILLING AND VENTING OF DECAY HEAT CCC SYSTEM O ~
ACTIONS DETAILS 4.2.1 Complete Valve Check Lists I, and II for applicable Decay Heat CCC Train /
Initial /Date 4.2.2 Fill DC surge tanks 1. Open/ Ensure Open the (DCT-1A/1B) following valves:
o DCV-59 (DCT 1A) o DCV-60 (DCT 18)
- 2. Monitor DCV-10 and DCV-12 for proper control of tank levels !
(8 ft 6 in - 11 ft 4 in)
/
Initial /Date j O
< 4.2.3 Pressurize DC surge tanks with nitrogen (DCT-1A/18)
- 1. Open/ Ensure Open the following valves:
o DCV-186 (DCT 1A) o DCV-188 (DCT 1B)
- 2. Monitor tanks for proper I pressure (5 - 10 PSIG)
/
Initial /Date O
OP-404 Rev. 98 Page 15
-4.2 INITIAL FILLING AND VENTING 0F DECAY HEAT CCC SYSTEM (Cont'd)
~
ACTIONS DETAILS NOTE: Maintain DC Surge tank level and pressure to ensure proper system venting.
4.2.4 Vent DC piping Slowly open the following valves until no more air escapes, then close the valves DCV-123, "A" Supply Vent DCV-125, DHHE-1A Inlet Vent i DCV-129, DHHE-1A Outlet Vent DCV-160, "A" Return-Vent DCV-124, "B" Supply Vent l DCV-126, DHHE-18 Inlet Vent i DCV-130, DHHE-1B Outlet Vent .
DCV-159, "B" Return Vent I DCV-164, DCHE-1A Outlet Vent DCV-179, DCHE-1A Vent
-DCV-163, DCHE-18 Outlet Vent DCV-180, DCHE-1B Vent DCV-161, AHF-15A Outlet Vent O- DCV-162,'AHF-15B Outlet Vent DCV-132, MVP-1A Supply Vent ,
DCV-134, MVP-1A Supply Vent l DCV-136, MVP-1A Supply Vent 1 DCV-141, MVP-1A Return Vent l DCV-143, MVP-1A Return Vent ,
DCV-145, MVP-1A Return Vent DCV-147, MVP-1C Supply Vent DCV-149, MVP-1C Supply Vent DCV-151, MVP-1C Supply Vent DCV-156, MVP-1C Return Vent DCV-158, MVP-1C Return Vent
/
Initial /Date O
OP-404 Rev. 98 Page 16
I 4.2 INITIAL FILLING AND VENTING 0F DECAY HEAT CCC SYSTEN (Cont'd)
ACTIONS DETAILS NOTE: RWP-3A/3B is not required to be started if DC temperature is expected to remain less than 105'F without RW heat removal.
, NOTE: RWV-150 will not properly control SW system temperature if RWP-3B is running.
l 4.2.5 Start DC flow to aid in 1. lE required, START RWP-3A l' venting system AND RWP-3B
- 2. START DCP-1A l AtlQ DCP-1B
- 3. WHEN DCP-1A and DCP-1B have run for approximately 5 min, l
I!iEN STOP DCP-1A/1B AMQ RWP-3A/3B (if started)
/
Initial /Date
!O l 4.2.6 Repeat Step 4.2.4
/
Initial /Date
\
l l
l -
l l
lO i
OP-404 Rev. 98 Page 17
(
4.3 FILLIM AND VENTIM DHP-1A/"A" DECAY HEAT TRAIN lO ACTIONS DETAILS 4.3.1 Ensure Valve Check List III o Refer to Enclosure 3 is complete
/
Initial /Date NOTE: Opening DHV-10 may cause backflow from the BWST.
4.3.2 Align fill and vent flow 1. OPEN DHV-8, "A" DH Loop path Recirc Isolation
- 2. OPEN DHV-10, DH Recirc Isolation Bypass
/
Initial /Date 4.3.3 Fill and vent "A" DH train 1. Using the motor operator O handwheel, OPEN DHV-34 slowly until BWST flow is i audibly detected
- 2. Slowly open the following valves until no more air escapes,.then close the !
valves '
DHV-19, DHP-1A Vent and '
observe DH-50-FI while venting DHP-1A casing DHV-84, DHP-1A Suction Header Vent DHV-16, DHP-1A Discharge Vent
- 3. JWiEN venting is complete, THEN CLOSE the following:
DHV-34 DHV-8 DHV-10
/
Initial /Date OP-404 Rev. 98 Page 18
4.4 EILL!M AND VENTING DHP-1B "B" DECAY HEAT TRAIN ACTIONS DETAILS 4.4.1 Ensure Valve Check List III o Refer to Enclosure 3 is complete
/
Initial /Date NOTE: Opening DHV-10 may cause backflow from the BWST.
4.4.2 Align fill and vent flow path 1. OPEN DHV-7, "B" DH Loop Recirc Isolation
- 2. OPEN DHV-10, DH Recirc Isolation Bypass
/
Initial /Date 4.4.3 Fill and vent "B" DH train Using the motor operator O 1.
handwheel, OPEN DHV-35 slowly until BWST flow is audibly detected
- 2. Slowly open the following valves until no more air escapes, then close the valves DHV-30, DHP-1B Vent and observe DH-51-FI while venting DHP-1B casing DHV-83, DHP-1B Suction Header Vent DHV-26, DHP-1B Discharge Vent
- 3. M!iE!i venting is complete, Il!Efi CLOSE the following:
DHV-35 DHV-7 DHV-10
/
Initial /Date O -
OP-404 Rev. 98 Page 19
. . - --..-.- .-- . _- -. -. - - --.__=- ._- -
1 1
4.5 ESTABLISHING DECAY HEAT REMOVAL ACTIONS DETAILS -
4.5.1 Initial Conditions 4.5.1.1 Plant cooldown is in progress per OP-209, Plant Cooldown /
Initial /Date 4.5.1.2 Conduct a Pre-job briefing with all personnel involved /
S500 /Date 4.5.1.3 Ensure plant conditions will o Ensure the following conditions allow DH removal operation exist:
RC temperature < 280*F RC pressure within limits of OP-103B, curve 5 or 6 Reactor vessel level Within O
the Acceptable region of OP- l 103B, curves 16 and 18
/
Initial /Date l l
4.5.1.4 Ensure that there is no Stop maintenance, modifications or maintenance or testing of the testing of Switchyard that will be switchyard supplying power to supplying power to DH Train '
the DH train that will be.in Q8 service Consider alternate electrical lineup
/
Initial /Date 4.5.1.5 Repower DHV-3 o CLOSE/ ensure Closed treaker for DHV-3, ES MCC 3A-1 # 3C Initial /Date O :
OP-404 Rev. 98 Page 20
I 4.5 ESTABLISHING DECAY HEAT REMOVAL-(Cont'd)
[
ACTIONS DETAILS NOTE: Steps 4.5.1.6 and 4.5.1.7 may be performed any time during the cooldown after reaching Mode 4 but prior to placing decay heat removal inservice.
NOTE: Clockwise rotation of DCV-177-MS simultaneously opens DCV-177 (increasing cooling flow) and closes DCV-17 (decreasing bypass flow) . Counterclockwise rotation causes the opposite results.
The purpose of this is to maintain DCP-1A flow within a minimum and maximum range to prevent pump runout and deadhead conditions.
4.5.1.6 Align DHHE-1A cooler 1. Ensure instrument air is temperature controls for DH aligned to remote control system operation stations and valve operators (Refer to Enclosure 5)
- 2. CLOSE DCV-195, IA Supply Vent from DCV-177-MS
- 3. OPEN DCV-194, IA Supply
'q Isolation from DCV-177-MS to g temperature control valves
- 4. Ensure DHHE-1A control switch in 4160V ES Switchgear Room "A" is selected to " Control Room"
- 5. Start DCP-1A
- 6. Cycle DHHE-1A temperature control valves from the Control Room to visually verify proper operation of DCV-17 and DCV-177.
- 7. Position DCV-177-MS rheostat at "0" (Minimum Cooling)
- 8. Stop DCP-1A at the SS00's Discretion ( you may want to leave this pump running if this is the train you are placing in service )
/
Initial /Date i
I
\
iO OP-404 Rev. 98 Page 21
l 4.5 ESTABLISHING DECAY HEAT REMOVAL (Cont'd) l ACTIONS DETAILS -
NOTE: Clockwise rotation of DCV-178-MS simultaneously opens DCV-178 (increasing cooling flow) and closes DCV-18 (decreasing bypass l flow) . Counterclockwise rotation causes the opposite results.
The purpose of this is to maintain DCP-1B flow within a minimum and maximum range to prevent pump runout and deadhead conditions.
4.5.1.7 Align DHHE-1B cooler 1. Ensure instrument air is temperature controls for DH aligned to remote control system operation stations and valve operators (Refer to Enclosure 5)
- 2. CLOSE DCV-197, IA Supply Vent from DCV-178-MS
- 3. OPEN DCV-196, IA Supply Isolation from DCV-178-MS to I
temperature control valves
- 4. Ensure DHHE-1B control switch in 4160V ES Switchgear Room "B" is selected to " Control Room"
- 5. Start DCP-1B
- 6. Cycle DHHE-1B temperature control valves from the Control Room to visually verify proper operation of ,
DCV-18 and DCV-178 '
- 7. Position DCV-178-MS rheostat i at "0" (Minimum cooling)
- 8. Stop DCP-1B at the SS00's Discretion ( you may want to leave this pump running if this is the train you are placing in service )
/
Initial /Date 4.5.1.8 Determine whether RWV-150 o Evaluate current / desired SW should remain in service operating conditions o Evaluate STS requirements o Evaluate which DH train is to be
. placed in service o Refer to CP-408 to remove RWV-150 from service
/
Initial /Date OP-404 Rev. 98 Page 22
4.5 ESTABLISHING DECAY HEAT REMOVAL (Cont'd)
ACTIONS DETAILS -
4.5.2 IE DHP-1A is to be used for 1. Ensure the following are DH removal, CLOSED:
I!!EN continue with this step, DHV-8, "A" DH BWST Recirc OTHERWISE GO TO Step 4.5.3 Isolation DHV-11, MVP Crosstie DHV-34, BWST Suction Isolation DHV-42, RB Sump Suction 1
Isolation DHV-75, "A" DH Purification Return Isolation DHV-76, "B" DH Purification Return l Isolation l DHV-105, "A" DH Purification Supply Isolation DHV-106, "B" DH .
Purification Supply Isolation ,
NOTE: TS 3.6.6 must be entered when disabling BS Train.
- 1. Ensure BSV-16 is open with breaker in lock / reset.
- 2. Place BSP-1A Control Switch in Normal-after-Stop and I
red tag to the SS00
- 3. Rack out BSP-1A Breaker and l red tag to the SSOD Unlock and close breaker 4.
for BSV-17
- 5. Close BSV-17
- 6. _ Open Breaker for BSV-17 and lock in Lock Reset 3.OPENthefollowing:DHSupply
- 1. DHV-39, "A isolation IE excessive differential pressure exists when opening, THEN DHV-120 may be cycled to equalize pressure
- 2. DHV-5, "A" DH Outlet isolation
/
Initial /Date OP-404 Rev. 98 Page 23
4.5 ESTABLISHING DECAY HEAT REMOVAL (Cont'd)
~
ACTIONS DETAILS NOTE: Auxiliary spray is not available via this valve alignment.
4.5.3 IE DHP-1B is to be used for 1. Ensure the following are DH removal, CLOSED:
IHffi continue with this step, DHV-7, "B" DH BWST Recirc OTHERWISE GO TO Step 4.5.4 Isolation DHV-12, MVP Crosstie DHV-35, BWST Suction Isolation DHV-43, RB Sump Suction Isolation DHV-75, "A" DH Purification Return Isolation DHV-76, "B" DH Purification Return Isolation DHV-105, "A" DH Purification Supply Isolation O' DHV-106, "B" DH Purification Supply Isolation NOTE: TS 3.6.6 must be entered when disabling BS Train.
l
- 2. Isolate BSP-1B suction to .
prevent transfer of RCS to l spray header
- 1. Ensure BSV-17 is open with breaker in lock / reset
- 2. Place BSP-1B Control Switch in Normal-after-Stop and Red Tag to the SSOD
\
- 3. Rack out BSP-1B breaker and Red Tag to the SS0D
- 4. Unlock and close breaker for BSV-16
- 5. Close BSV-16
. 6. Open Breaker for BSV-16 and lock in Lock Reset (4.5.3 Continued on following page) p)
L OP-404 Rev. 98 Page 24
4.5 ESTABLISHING DECAY HEAT REMOVAL (Cont'd)
%J ACTIONS DETAILS 4.5.3 (Cont'd) 3. OPEN the following:
- 1. DHV-40, "B" DH Supply Isolation IE excessive differential pressure exists when opening, It!EN DHV-121 may be cycled to equalize pressure
- 2. DHV-6 "B" DH Outlet Isolation
/
Initial /Date 4.5.4 lE Loop A RCPs are in 1. RC Loop A < 225 PSIG per SPDS operation, Low Range RCS PRESS IllEN reduce RCS PRESS below (RC-147-PT) on Alpha Page, or ACIS settings RC-147-PIl on Remote Shutdown Panel Section AB s 2. RC Loop B < 275 PSIG per RC-132-PI located in ES channel test cabinet 3
- 3. Within limits of OP-103B, curve 5 or 6
- 4. Bypass DHV-4 ACIS interlock; Place ACI Bypass Key in BYPASS (Act Chan Cab # 3)
Verify "DH VALVE ACI SYSTEM TROUBLE" annunciator is actuated
/
Initial /Date O
1 OP-404 Rev. 98 Page 25
4.5 ESTABLISHING DECAY HEAT REMOVAL (Cont'd)
~
ACTIONS DETAILS 4.5.5 IE Loop B RCPs are in 1. RC Loop A < 275 PSIG per SPDS operation, Low Range RCS PRESS IHEN reduce RCS PRESS below (RC-147-PT) on Alpha Page, or ACIS settings RC-147-PIl on Remote Shutdown i Panel Section AB i
- 2. RC Loop B PRESS < 225 PSIG per ,
RC-132-PI located in ES-channel test cabinet 3-
- 3. Within limits of OP-103B, I curve 5 or 6
- 4. Bypass DHV-3 ACIS interlock, Place ACI Bypass Key in BYPASS l (Act Chan Cab # 1)
Verify "DH VALVE ACI SYSTEM TROUBLE" annunciator is actuated
/
Initial /Date O 4.5.6 Perform valve stroke timing o Refer to SP-435, Valve Testing checks on DHV-3, DHV-4, During Cold Shutdown DHV-5, and DHV-6. These checks are not required if the valves have been checked within the past three months /
Initial /Date i
1 O
OP-404 Rev. 98 Page 26
4.5 ESTABLISHING DECAY HEAT REMOVAL (Cont'd)
ACTIONS DETAILS -
4.5.7 Align DH dropline and o OPEN the following:
auxiliary spray for operation DHV-3 DHV-4 DHV-41
_ DHV-91
/
Initial /Date 4.5.8 ff DHP-1A is to be used for 1. START DCP-1A DH removal, 2. START RWP-3A Il!EN continue with this step, 3. START DHP-1A OTHERWISE Go to Step 4.5.12 4. Adjust DHV-110 to obtain a flowrate of approximately Start DH flow 3000 gpm j
- 5. Adjust DHP-1A low amp alarm as desired per Section 4.31 I
Initial /Date 4.5.9 Ensure proper lubrication of o Observe proper operation of DHP-1A Slinger Rings o Ensure proper oil levels l
/ \
Initial /Date l 4.5.10 Perform Cyclone Separator 1. Throttle DHV-103 to obtain adjustment if required a reading on DH-32-PI of 80 to 110 PSIG 1ess than indicated on DH-31-PI
- 2. Throttle DHV-104 to obtain a reading on DH-33-PI of 80 to 110 PSIG less than indicated on DH-31-PI
- 3. Ensure DHV-103 and DHV-104 are sealed in their throttled position Initial /Date OP-404 Rev. 98 Page 27
4.5 ESTABLISHING DECAY HEAT REMOVAL (Cont'd)
ACTIONS DETAILS -
. NOTE: A maximum step change of 25'F is allowable when stopping all l RCPs with DH system in operation. A step change is defined as RCS T-Cold prior to stopping all RCPs, minus operating DH
. Cooler Outlet temperature after stopping all ."'s.
NOTE: Clockwise rotation of DCV-177-MS simultaneously opens DCV-177
- (increasing cooling flow) and closes DCV-17 (decreasing bypass
- flow) . Counterclockwise rotation causes the opposite results.
The purpose of this is to maintain DCP-1A flow within a minimum and maximum range to prevent pump runout and deadhead conditions.
1 l
NOTE: Suspected failures of DCV-17 and/or DCV-177 can be a
cross-checked against expected DHHE-1A outlet temperatures DH-2-TII), DCP-1A discharge pressure, and DC 'A' system flow a DC-61-FI, local at DCPs).
NOTE: When required, the details for adjusting / controlling, (DCV-177-MS) DHHE-1A outlet temperature can be achieved by O manually throttling DCV-177 and DCV-17 to obtain the desired position and action of the detail. For local manual operation of DCV-17 and DCV-177, refer to Enclosure 6 for guidance.
4 4.5.11 WHEN DHHE-1A outlet 1. M DHHE-1A outlet tem)erature has equalized temperature (DH-2-TII) rises witi RCS, to RCS temperature, J.B.S determine DH and DC THEN adjust DCV-177-MS (MCB, systems are thermally- PSA panel) clockwise to obtain coupled, a small but noticeable delta-T AND establish RCS cooling across DHHE-1A (DHP-1A i using the DH system suction, DH-6-TII, minus ;
DHHE-1A outlet, DH-2-TII).
_T. jig shutdown operating RCPs in accordance with Section 4.2 of OP-209.
- 3. Adjust DCV-177-MS as required for desired cooldown rate and continue to perform SP-422, RCS Heatup & Cooldown Surveillance (4.5.11 Continued on following page)
O OP-404 Rev 98 Page 28
.4.5 ESTABLISHING DECAY HEAT REMOVAL (Cont'd)
ACTIONS DETAILS 4.5.11 (Cont'd) 4. Following DCV-177-MS adjustments, monitor DHHE-1A outlet temperature for expected temperature changes
- 5. Ensure DCHE-1A delta RW
-temperature (RW-13-TI &
RW-33-TI) is maintained < 10*F
- 6. Monitor PZR level for decreasing trends which could be indicative of overcooling or leaks in the DH system-
- 7. M RCS is < 110*F, M establish the '
Programmable Computer Alarm at 115'F for an Incore i Thermocouple (preferably R258)
/
Initial /Date O NOTE: RWV-150 will not properly control SW system temperature if RWP-38 is running.
4.5.12 lE DHP-1B is to be used for 1. START DCP-1B DH removal, 2. START RWP-3B M continue with this step 3. START DHP-1B
- 4. Adjust DHV-111 to obtain a Start DH flow flowrate of approximately 3000 gpm
- 5. Adjust DHP-1B low amp alarm as desired per Section 4.31
/
Initial /Date 1
4.5.13 Ensure proper lubrication of o Observe proper operation of DHP-1B Slinger Rings
. o Ensure proper oil levels
. /
Initial /Date OP-404 Rev. 98 Page 29
L._, .e a-A _m.. 4 4 .m +-s+A4.,e- PL.----- -,e+ - -eA .4 A 4 a W- - a a e . J a .
I I
l 4.5 ESTA8LISHING DECAY HEAT REMOVAL (Cont'd)
ACTIONS DETAILS 4.5.14 Perform Cyclone Separator 1. Throttle DHV-100 to obtain I adjustments as required a reading on DH-35-PI of 80 to 110 PSIG less than indicated on DH-34-PI
- 2. Throttle DHV-101 to obtain I a reading on DH-36-PI of 80 '
to 110 PSIG less than indicated on DH-34-PI
- 3. Ensure DHV-100 and DHV-101 are sealed in their throttled position 1
/ j Initial /Date 1
O O
l 0P-404 Rev. 98 Page 30
4.5 ESTABLISHING DECAY HEAT REMOVAL (Cont'd)
ACTIONS DETAILS NOTE: A maximum step change of 25'F is allowable when stopping all RCPs with DH system in operation. A step change is defined as ,
RCS T-Cold prior to stopping all RCPs, minus operating DH Cooler Outlet temperature after stopping all RCPs.
NOTE: Clockwise rotation of DCV-178-MS simultaneously opens DCV-178 (increasing cooling flow) and closes DCV-18 (decreasing bypass flow) . Counterclockwise rotation causes the opposite results.
The purpose of this is to maintain DCP-1B flow within a minimum and maximum range to prevent pump runout and deadhead conditions. ;
l NOTE: Suspected failures of DCV-18 and/or DCV-178 can be cross-checked against expected DHHE-18 outlet temperatures (DH-2-TI2), DCP-1B discharge pressure, and DC 'B' system flow (DC-62-FI, local at DCPs).
NOTE: When required, the details for adjusting / controlling, (DCV-178-MS) DHHE-1B outlet temperature can be achieved by O manually throttling DCV-178 and DCV-18 to obtain the desired position and action of the detail. For local manual operation of DCV-18 and DCV-178, refer to Enclosure 6 for guidance.
4.5.15 WHEN DHHE-18 outlet 1. WHEN DUHE-1B outlet tem)erature has equalized temperature (DH-2-TI2) rises wit 1 RCS, to RCS temperature, ,
IllEH determine DH and DC Il!EH adjust DCV-178-MS (MCB, j systems are thermally PSA panel) clockwise to obtain ,
coupled, a small but noticeable delta-T ANQ establish RCS cooling across DHHE-1B (DHP-1B using the DH system suction, DH-6-TI2, minus DHHE-1B outlet, DH-2-TI2)
- 2. WHEH DHHE-1B delta-T indicates adequate thermal coupling ,
between DH and DC, '
THEN shutdown operating RCPs in accordance with Section 4.2 of OP-209
- 3. Adjust DCV-178-MS as required for desired cooldown rate and
. continue to perform SP-422, RCS Heatup & Cooldown Surveillance (4.5.15 Continued on following page)
OP-404 Rev. 98 Page 31
4.5 ESTABLISHING DECAY HEAT REMOVAL (Cont'd)
ACTIONS DETAILS .
4.5.15 (Cont'd) 4. Following DCV-178-MS i adjustments, monitor DHHE '1B outlet temperature for-
, expected temperature changes
- 5. Ensure DCHE-1B delta RW temperature (RW-12-TI & I RW-32-TI) is maintained < 10*F
- 6. Monitor PZR level for
! decreasing trends which could be indicative of overcooling or leaks in the DH system
- 7. )[HB RCS is < 110*F, I!iG establish the Programmable Computer Alarm at 4 115'F for an Incore 1 Thermocouple (preferably R258) l
/
Initial /Date O
l I
l -
- O I
OP-404 Rev. 98 Page 32
4.6 ALTERNATING DECAY HEAT TRAINS O
O ACTIONS DETAILS -
4.6.1 E the RCS is partially o Refer to Limits and Precautions filled, establish reactor involving Reduced inventc,0y vessel level watch prior to operation changing flowpaths or o E tygon tube level indication is starting equipment in the unavallable in the Control Room alternate train, via a camera / monitor, OTHERWISE "N/A" this step IHQ assign a level watch at the tygon level indicator and establish communications capability with the Control Room
/
Initial /Date 4.6.1.1 Ensure that there is no Stop maintenance, modifications, or maintenance or testing of the testing of Switchyard that will be switchyard supplying power to supplying power to DH Train the DH train that will be QR placed in service Considei alternate electrical lineup
/
Initial /Date 4.6.1.2 Inform Health Physics and Chemistry of swapping DH Trains /
Initial /Date 4
l O
OP-404 Rev. 98 Page 33
~ _. - . _ - .- ..- . .- . . - .. _
4.6 ALTERNATING DECAY HEAT TRAINS (Cont'd)
%J ACTIONS DETAILS 4.6.2 IE the "A" DH train is in Ensure the following are service, CLOSED:
THEN continue with this step, 1. DHV-7, "B" DH BWST Recirc OTHERWISE GO TO Step 4.6.12 Isolation DHV-12, MVP Crosstie DHV-35, BWST Suction Isolation DHV-43, RB Sump Suction Isolation
- 2. DHV-105, "A" DH Purification Supply Isolation DHV-106, "B" DH Purification Supply Isolation
- 3. DHV-75, "A" DH Purification Return Isolation DHV-76, "B" DH Purification Return Isolation
/
Initial /Date NOTE: TS 3.6.6 must be entered when disabling BS Train.
4.6.2.1 lE in Mode IV, 1. Ensure BSV-17 is open with IlHlEH isolate BSP-18, breaker in lock / reset OTHERWISE N/A this step 2. Ensure BSP-1A Breaker is racked in 1 Place BSP-1B control switch in Normal-after-Stop and red tag i to the SS00 )
- 4. Rack out BSP-1B Breaker and red tag to the SS0D
- 5. Unlock and close breaker for l BSV-16
- 6. Close BSV-16
- 7. Open breaker for BSV-16 and lock in Lock Reset to prevent inadvertent injection of RCS into BS Header
. /
Initial /Date O !
l OP-404 Rev. 98 Page 34
4.6 ALTERNATING DECAY HEAT TRAINS (Cont'd)
ACTIONS DETAILS 4.6.2.2 Open DH Pump isolation valves OPEN the following:
DHV-40, "B" DH Inlet Isolation DHV-6, "B" DH Outlet Isolation
/
Initial /Date 4.6.3 Ensure proper operation of o Observe DCV-178 and DCV-18 DHHE-1B temperature control o When complete, leave the valves by cycling DCV-178-MS controller and the DC. valves in and visually observing valve the zero ("0"), ng cooling movement position
/
Initial /Date 4.6.4 Record the "A" DH train DHHE-1A outlet Temperature:
O outlet temperature
/
Initial /Date 4.6.5 Decrease "A" DH train flow in o Adjust DHP-1A low amp alarm as anticipation of dual DHP desired per Section 4.31 operation o Using DHV-110, decrease DH flowrate to approximately 1500 gpm
/
Initial /Date i
i l
)
O I 0P-404 Rev. 98 Page 35
4.6 ALTERNATING DECAY HEAT TRAINS (Cont'd)
O ACTIONS DETAILS CAUTION: Starting an idle ambient DH train will cause a cooldown. The intent of the following steps is to expeditiously recover temperature and minimize the resultant effective cooldown NOTE: RWV-150 will not properly control SW temperature if RWP-3B is running.
4.6.6 Start "B" DH train flow 1. START DCP-1B
- 2. START RWP-38
- 3. START DHP-1B
- 4. THROTTLE DHV-111 to maintain approximately 1500 gpm in "B" DH train
/
Initial /Date 4.6.7 Ensure proper lubrication of o Observe proper operation of DHP-1B Slinger Rings o Ensure proper oil levels
/
Initial /Date 4.6.8 Transfer cooling from DHHE-1A 1. Adjust DCV-177-MS to the zero to DHHE-1B ("0"), no cooling position, while adjusting DCV-178-MS to recover temperature to the value recorded in step 4.6.4
/
Initial /Date C
(J OP-404 Rev. 98 Page 36
4.6 ALTERNATING DECAY HEAT TRAINS (Cont'd)
ACTIONS DETAILS 4.6.9 Secure "A" DH train 1. STOP DHP-1A
- 2. STOP RWP-3A
- 3. STOP DCP-1A
- 4. CLOSE the following:
__ DHV-5 DHV-39
- 5. Adjust DHV-111 to approx.
3000 gpm
- 6. Adjust DCV-178-MS to recover temperature,as close as possible, to the value recorded in step 4.6.4
- 7. Adjust DHP-1B low amp alarm as desired per Section 4.31
/
Initial /Date NOTE: The temperature recorded in this step should be the temperature ,
s that was obtained after the "B" DH train has stabilized. !
l 4.6.10 Determine the effective 1. Record DHHE-1B outlet cooldown temperature:
- 2. Calculate the effective 4 cooldown (temp recorded in :
step 4.6.4 - the temp recorded .
above = effective cooldown) !
- 3. Jf the effective cooldown calculated above is >10*F in any one hour period JJ1EN refer to SP-422
/ :
Initial /Date Independent Verification __
O NJ OP-404 Rev. 98 Page 37
- ._ .- - .- - = . .-
4.6 ALTERNATING DECAY HEAT TRAINS (Cont'd)
ACTIONS DETAILS -
NOTE: Clockwise rotation of DCV-178-MS simultaneously opens DCV-178 (increasing cooling flow) and closes DCV-18 (decreasing bypass flow) . Counterclockwise rotation causes the opposite results.
The purpose of this is to maintain DCP-1B flow within a minimum and maximum range to prevent pump runout and deadhead conditions.
NOTE: When required, the details for adjusting / controlling, (DCV-178-MS) DHHE-1B ot.tlet temperature can be achieved by manually throttling DCV 178 and DCV-18 to obtain the desired position and action of tae detail. For local manual operation of DCV-18 and DCV-178, refer to Enclosure 6 for guidance.
4.6.11 Control RCS cooling by DHR o Adjust DCV-178-MS to provide desired cooling o Monitor DHP-1B suction temperature (DH-6-TI2) to ensure RCS cooling is q effective Q o Monitor DHHE-1B Discharge temperature (DH-2-TI2) and continue SP-422, RC System Heatup and Cooldown Surveillance until cooldown is terminated o Monitor RW-12-TI and RW-32-TI Maintain DCHE-1B AT less than 10 *F o Monitor PZR level. Decrease in PZR level could be due to -
overcooling or leak in Decay Heat System o luiG the RCS is < 110 'F THEN establish the Programmable Computer Alarm at 115 'F for an Incore Thermocouple (Preferably R258) o GO TO Step 4.6.22
/
, Initial /Date O
OP-404 Rev. 98 Page 38
4.6 ALTERNATING DECAY HEAT TRAINS (Cont'd)
O ;
V ACTIONS DETAILS . -
l 4.6.12 Align the "A" DH train for Ensure the following are operation CLOSED:
- 1. DHV-B, "A" DH BWST Recirc l Isolation DHV-11, MVP Crosstie i DHV-34, BWST Suction Isolation l DHV-42, RB Sump Suction l Isolation
- 2. DHV-105, "A" DH Purification Supply Isolation DHV-106, "B" DH Purification Supply Isolation
- 3. DHV-75, "A" DH Purification Return Isolation DHV-76, "B" DH Purification Return Isolation
/
Initial /Date NOTE: TS 3.6.6 must be entered when disabling BS Train.
4.6.12.1 If in Mode IV, 1. Ensure BSV-16 is open with
_T_HE[ isolate BSP-1A, breaker in lock / reset OTHERWISE N/A this step 2. Ensure BSP-1B Breaker is racked in
- 3. Place BSP-1A control switch in Normal-after-Stop and red tag to the SS00 l
- 4. Rack out BSP-1A breaker and j red tag to the SSOD l
- 5. Unlock and close breaker for BSV-17
- 6. Close BSV-17 !
- 7. Open breakers for BSV-17 and lock in Lock Reset to prevent inadvertent injection of RCS into BS Header '
/
Initial /Date 4.6.12.2 Open DH Pump Isolation OPEN the following:
DHV-39, "A" DH Inlet Isolation
~
valves DHV-5, "A" DH Outlet Isolation D l Q Initial /Date OP-404 Rev. 9B Page 39
4.6 ALTERNATING DECAY HEAT TRAINS (Cont'd)
ACTIONS DETAILS 4.6.13 Ensure proper operation of o Observe DCV-177 and DCV-17 DHHE-1A temperature control o When complete, leave the valves by cycling DCV-177-MS controller and the DC valves in and visually observing valve the zero ("0"), na cooling movement position
/
Initial /Date l
4.6.14 Record the "B" DH train DHHE-1B outlet Temperature:
outlet temperature
/
Initial /Date 4.6.15 Decrease "B" DH train flow in o Adjust DHP-1B low amp alarm as anticipation of dual DHP desired per Section 4.31 operation o Using DHV-111, decrease DH
( flowrate to approximately 1500 gpm
/
Initial /Date CAUTION: Starting an idle ambient DH train will cause a cooldown. The )
intent of the following steps is to expeditiously recover '
temperature and minimize the resultant effective cooldown 4.6.16 Start "A" DH train flow 1. START DCP-1A
- 2. START RWP-3A
- 3. START DHP-1A 4
- 4. THROTTLE DHV-110 to maintain approximately 1500 gpm in "A" DH train
/
Initial /Date O
OP-404 Rev. 98 Page 40
l l
4.6 ALTERNATING DECAY HEAT TRAINS (Cont'd)
O V
ACTIONS DETAILS l 4.6.17 Ensure proper lubrication of o __ Observe proper operation of- ,
i DHP-1A Slinger Rings ;
l o Ensure proper oil levels I
/
l Initial /Date l
4.6.18 Transfer coolina from DHHE-18 1. Adjust DCV-178-MS to the zero to OHHE-1A ("0"), p_q cooling position, while adjusting DCV-177-MS to recover temperature to the value recorded in step 4.6.14 l
/ \
Initial /Date l I
4.6.19 Secure "B" DH train 1. STOP DHP-1B
- 2. STOP RWP-3B
- 3. STOP DCP-1B Os 4. CLOSE the following: i DHV-6 DHV-40
- 5. Adjust DHV-110 to approx. 3000 gpm
)
- 6. Adjust DCV-177-MS to recover l temperature,as close as l possible, to the value recorded in step 4.6.14
- 7. Adjust DHP-1A low amp alarm as desired per Section 4.31
/
Initial /Date j
lO OP-404 Rev. 98 Page 41
4.6 ALTERNATING DECAY HEAT TRAINS (Cont'd)
ACTIONS DETAILS !
NOTE: The temperature recorded in this step should be the I temperature that was obtained after the "A" DH train has stabilized.
4.6.20 Determine the effective 1. Record DHHE-1A outlet cooldown temperature:
- 2. Calculate the effective cooldown (temp recorded in step 4.6.14 - the temp recorded above - effective !
cooldown) l
- . j
- 3. IE the effective cooldown calculated above is >10*F in any one hour period Tl!EN refer to SP-422 l
/
Initial /Date Independent Verification O
OP-404 Rev. 98 Page 42
-. . ~ - _ - . . . . - - . . . _ . - . .- .
1 4.6 ALTERNATING DECAY HEAT TRAINS (Cont'd)
~
ACTIONS DETAILS NOTE: Clockwise rotation of DCV-177-MS simultaneously opens DCV-177 (increasing cooling flow) and closes DCV-17 (decreasing bypass flow) . Counterclockwise rotation causes the opposite results.
The purpose of this is to maintain DCP-1A flow within a minimum and maximum range to prevent pump runout and deadhead conditions.
4 NOTE: When required, the details for adjusting / controlling, (DCV-177-MS) DHHE-1A outlet temperature can be achieved by manually throttling DCV-177 and DCV-17 to obtain the desired position and action of the detail. For local manual operation of DCV-17 and DCV-177, refer to Enclosure 6 for guidance.
l 4.6.21 Control RCS cooling by DHR o Adjust DCV-177-MS to provide desired cooling o Monitor DHP-1A suction temperature (DH-6-TII) to ensure RCS cooling is ,
effective O o Monitor DHHE-1A Discharge temperature (DH-2-TII) and I
continue SP-422, RC System Heatup and Cooldown Surveillance until cooldown is terminated o Monitor RW-13-TI and RW-33 TI Maintain DCHE-1A AT less than 10 'F l o Monitor PZR level. Decrease i in PZR level could be due to l overcooling or leak in Decay Heat System o W!!EN the RCS is < 110 *F
._THEN establish the Programmable Computer Alarm at 115 'F for an Incore Thermocouple (Preferably R258)
/
Initial /Date 1
O OP-404 Rev. 98 Page 43
. _ _ __ _..._._ _ -.____ _ ._ ..~.. _ __. _ . _ _. ..._. _..___._ .._.._..___ _ _ _ _ _
i
)
i 4
! 4.6 ALTERNATING DECAY HEAT TRAINS (Cont'd) lO i ACTIONS DETAILS -
1 4.6.22 If reactor vessel level is
- 1 132 feet, secure the ;
- reactor vessel level watch if 1 stationed,otherwise,"N/A" this step i /
Initial /Date l
i 1
I i
~O e
l' i
i iO 3
I a
OP-404 Rev. 98 Page 44 a
4.7 RESTARTING DECAY HEAT REMOVAL AFTER PUMP TRIP ACTIONS. DETAILS .
NOTE: "E 1 both Decay Heat Trains fail to operate,
!g immediately GO TO E0P-11, Loss of Decay Heat Removal.
4.7.1 J the RCS is partially o Ensure RCS level Within the villed, Acceptable region of OP-103B QB cause of DHP tripping is curves 16 and 18.
unknown, o Possible system air IliEt ensure a system entrainment or gas binding has concitions for restarting a been considered. Refer to Decay Heat train have been Sections 4.3 and 4.4 as reviewed required o Other potential causes for DHP tripping have been considered
/
Initial /Date 4.7.2 Align the "A" DH train for Ensure the following are CLOSED:
operation if desired, DHV-8, "A" DH BWST Recirc OTHERWISE go to Step 4.7.6 Isolation O DHV-11, MVP Crosstie DHV-34, BWST Suction Isolation DHV-42, RB Sump Suction Isolation DHV-75, "A" DH Purification Return Isolation DHV-76, "B" DH Purification Return Isolation DHV-105 "A", DH Purification Supply isolation DHV-106, "B" DH Purification Supply Isolation Position DCV-177-MS rheostat at "0" (Minimum cooling)
/
Initial /Date i
NOTE: TS 3.6.6 must be entered when disabling BS Train.
.4.7.2.1 in Mode IV, 1. Ensure BSV-16 is open with isolate BSP-1A, breaker in lock / reset RWISE N/A this step. 2. Ensure BSP-18 Breaker is j
~
racked in l
- 3. Place BSP-1A control switch in Normal-after-Stop and red tag to the SS00
. (4.7.2.1 Continued on following page)
OP-404 Rev. 98 Page 45
4.7 BE11& RUM _EGALEALE@ VAL AFTER PUMP TRIP (Cont'd)
ACTIONS DETAILS -
4.7.2.1 (Cont'd) 4. Rack out BSP-1A Breaker and i red tag to the SS00
- 5. Unlock and close breaker for ,
BSV-17 !
- 6. Close BSV-17 ,
- 7. _ _ Open breaker for BSV-17 ar.d ,
lock in Lock Reset to prevent l inadvertent injection of RCS ,
into BS Header >
/ i Initial /Date ;
4.7.2.2 Open DH Pump isolation valves OPEN the following:
- 1. DHV-39, "A" DH Inlet Isolation IE excessive differential pressure exists when opening, THEN DHV-120 may be cycled to equalize pressure
- 2. DHV-5, "A" DH Outlet Isolation
/
Initial /Date 4.7.3 Verify DH Drop line is o OPEN/ verify Open the properly aligned following:
DHV-3 DHV-4 DHV-41 / ;
Initial /Date l l
4.7.4 Start "A" DH train flow 1. START DCP-1A ,
I
- 2. START RWP-3A
- 3. START DHP-1A
- 4. THROTTLE DHV-110 to maintain approximately 3000 gpm in "A" DH train
- 5. Adjust DHP-1A low amp alarm as desired per Section 4.31
/
Initial /Date
\
OP-404 Rev. 98 Page 46
4.7 RESTARTING DECAY HEAT REMOVAL AFTER PUMP TRIP (Cont'd) l O ACTIONS DETAILS -
x
, 4.7.4.1 Ensure iroper lubrication of o Observe proper operation of l DHP-1A Slinger Rings l o Ensure proper oil levels
, / \
Initial /Date l NOTE: Clockwise rotation of DCV-177-MS simultaneously opens DCV-177 (increasing cooling flow) and closes DCV-17 (decreasing bypass flow) . Counterclochwise rotation causes the opposite results.
The purpose of this is to maintain DCP-1A flow within a minimum and maximum range to prevent pump runout and deadhead )
conditions.
NOTE:
When required, (DCV-177-MS) the details DHHE-1A outletfortemperature adjusting can
/ controlling, be achieved by manually throttling DCV-177 and DCV-17 to obtain the desired position and action of the detail. For local manual operation of DCV-17 and DCV-177, refer to Enclosure 6 for guidance.
4.7.5 Control RCS cooling by DHR o Adjust DCV-177-MS to provide desired cooling o Monitor DHP-1A suction temperature (DH-6-TII ensure RCS cooling is) to effective o Monitor DHHE-1A Discharge temperature (DH-2-TII) and continue SP-422, RC System i Heatup and Cooldown Surveillance until cooldown is terminated o Monitor RW-13-TI and RW-33 TI Maintain DCHE-1A AT less than 10 *F o Monitor PZR level. Decrease in PZR level could be due to overcooling or leak in Decay Heat System o WH D the RCS is < 110 *F E E establish the Programmable Computer Alarm at 115 'F for an Incore Thermocouple (Preferably R258)
. o GO TO Step 4.7.10
/
, O Initial /Date
(_)
i l
OP-404 Rev. 98 Page 47
i i
4.7 RESTARTING DECAY HEAT REMOVAL AFTER PUMP TRIP (Cont'd)
ACTIONS DETAILS I
4.7.6 Align the "B" DH train for Ensure the following are CLOSED:
operation DHV-7, "B" DH BWST Recirc ;
Isolation 1 DHV-12, MVP Crosstie 1
._ DHV-35, BWST Suction Isolation I DHV-43, RB Sump Suction Isolation DHV-75, "A" DH Purification Return Isolation )
DHV-76, "B" DH Purification 1 Return Isolation DHV-105, "A" DH Purification Supply Isolation DHV-106, "B" DH Purification Supply Isolation Position DCV-178-MS rheostat at "0" (Minimum cooling)
/
Initial /Date V
l 1
NOTE: TS 3.6.6 must be entered when disabling BS Train. I I
4.7.6.1 If in Mode IV, 1. Ensure BSV-17 is open with JJim isolate BSP-1B, breaker in lock / reset OTHERWISE, N/A this step 2. Ensure BSP-1A Breaker is Racked In
- 3. Place BSP-1B control switch in Normal-after-Stop and red tag I to the SS0D I
- 4. Rack out BSP-1B Breaker and red tag to the SSOD
- 5. Unlock and close breaker for BSV-16
- 6. Close BSV-16
- 7. Open Breaker for BSV-16 and lock in Lock Reset to prevent inadvertent injection of RCS into BS Header
. /
Initial /Date O
OP-404. Rev. 98 Page 48 >
l 4.7 RESTARTING DECAY HEAT REMOVAL AFTER PUMP Tilf. (Cont'd)
O o ~
ACTIONS DETAILS 4.7.6.2 Open DH Pump isolation valves OPEN the following:
- 1. DHV-40, "B" DH Inlet Isolation IE excessive differential pressure exists when opening, JJiB DHV-121 may be cycled to equalize pressure
- 2. DHV-6, "B" DH Outlet Isolation
/
Initial /Date 5 l
4.7.7 Verify DH Drop line is o OPEN/ verify Open the properly aligned following:
DHV-3 DHV-4 ]
DHV-41 /
Initial /Date l NOTE: RWV-150 will not properly control SW temperature if RWP-3B is running.
4.7.8 Start "B" DH train flow 1. START DCP-1B
- 2. START RWP-3B
- 3. START DHP-1B
- 4. THROTTLE DHV-111 to maintain approximately 3000 gpm in "B" DH train
- 5. Adjust DHP-1B low amp alarm as desired per Section 4.31
/
Initial /Date 4.7.8.1 Ensure proper lubrication of o Observe proper operation of DHP-1B Slinger Rings
- o Ensure proper oil levels
/
Initial /Date OP-404 Rev. 98 Page 49
J 4.7 RESTARTING DECAY HEAT REMOVAL AFTER PUMP TRIP (Cont'd) r ;
N~-)g ;
, ACTIONS DETAILS NOTE: Clockwise rotation of DCV-178-MS simultaneously opens DCV-178 (increasing cooling flow) and closes DCV-18 (decreasing bypass flow) . Counterclockwise rotation causes the opposite results.
- The purpose of this is to maintain DCP-1B flow within a minimum and maximum range to prevent pump runout and deadhead conditions.
I NOTE: When required, the details for adjusting / controlling, (DCV-178-MS) DHHE-1B outlet temperature can be achieved by i manually throttling DCV-178 and DCV-18 to obtain the desired position and action of the detail. For local manual operation ,
of DCV-18 and DCV-178, refer to Enclosure 6 for guidance. !
4 4.7.9 Control RCS cooling by DHR o ___ adjust DCV-178-MS to provide uesired cooling o Monitor DHP-1B suction
- temperature (DH-6-TI2) to ensure RCS cooling is l effective o Monitor DHHE-1B Discharge temperature (DH-2-TI2) and i continue SP-4 2, RC System Heatup and Cooldown Surveillance until cooldown is terminated o Monitor RW-12-TI and RW-32-TI Maintain DCHE-1B AT less than 10 'F o Monitor PZR level. Decrease in PZR level could be due to overcooling or leak in Decay Heat System o WHEN the RCS is < 110 'F THEN establish the Programmable Computer Alarm at 115 'F for an Incore Thermocouple (Preferably R258)
/
Initial /Date O
OP-404 Rev. 98 Page 50
4.7 RESTARTING DECAY HEAT REMOVAL AFTER PUMP TRIP (Cont'd)
ACTIONS DETAILS t
4.7.10 If reactor vessel level is 2 132 feet, secure the reactor vessel watch if stationed,otherwise,"N/A" /
this step Initial /Date 4.7.11 Re-establish DH purification o Refer to Section 4.10 or 4.11 as required
/
Initial /Date <
l I
O 1 I
l O
OP-404 Rev. 98 Page 51
l
- I 4.8 PLACING DCHE-1A IN LAYUP I O ACTIONS DETAILS i
- s***c.*********************** l CAUTION: Ensure cooling water is maintained to operating makeup pumps prior to securing DCP-1A.
4.8.1 J.E flow exists in "A" DC 1. STOP RWP-3A train, train, 2. STOP DCP-1A IllB secure flow, OTHERWISE "N/A" this step /
Initial /Date 4.8.2 Ensure all "B" side ES equipment is operable /
Initial /Date p)
(
4.8.3 Remove Control power for RWP-3A o Open DC knife switch on the breaker for RWP-3A o Refer to Technical Specification actions
/
Initial /Date l
4.8.4 Drain seawater side of o OPEN RWV-77, DCHE-1A Drain DCHE-1A o OPEN RWV-73, DCHE-1A Vent o OPEN RWV-75, DCHE-1A Drain
/
Initial /Date i
1 OP-404 Rev. 98 Page 52
4.8 PLACING DCHE-1A IN LAYUP (Cont'd)
ACTIONS DETAILS -
4.8.5 WiiEff DCHE-1A is drained, 1. CLOSE RWV-77, Inlet Drain TjiEli fill with demin water 2. Connect a hose between DWV-336 and RWV-75 N
e_ND OPEN DWV-336
- 3. W!!Eff demin water flows from RWV-73, IHEli CLOSE DWV-336
- 4. CLOSE the following valves: ,
- 1. RWV-75, Outlet Drain
- 2. RWV-73, Vent
- 5. Remove and Store DW hose
/
Initial /Date 4.8.6 WHEN DCHE-1A fill is complete o Close DC knife switch on the JJiEli restore RWP-3B to breaker for RWP-3A and verify operable status power indications in control room O o Exit actions of Technical Specifications
/
Initial /Date I
t O
OP-404 Rev. 98 Page 53
4.9 PLACING DCHE-1B IN LAYUP O- '
ACTIONS DETAILS CAUTION: Ensure cooling water is maintained to operating makeup pumps prior to securing DCP-18.
4.9.1 1E flow exists in "B" DC 1. STOP RWP-3B train, train, 2. STOP DCP-1B IHEN secure flow, OTHERWISE "N/A" this step / 1 Initial /Date j I
4.9.2 Ensure all "A" side ES equipment is operable /
Initial /Date 4.9.3 Remove Control power for o Open DC knife switch on the O' RWP-3B o
breaker for RWP-3B Refer to Technical Specifications actions
/
Initial /Date l
I 4.9.4 Drain seawater side of o OPEN RWV-78, DCHE-1B Drain DCHE 1B o OPEN RWV-74, DCHE-1B Vent o OPEN RWV-76, DCHE-1B Drain
/
Initial /Date O
OP-404 Rev. 98 Page 54
1 l
i l
4.9 PLACING DCHE-1B IN LAYUP (Cont'd) l
-O ~
ACTIONS DETAILS l
4.9.5 WHEN DCHE-1B is drained, 1. CLOSE RWV-78, Inlet Drain IHEN fill with demin water 2. Connect a hose between DWV-336 and RWV-76, Outlet drain
- 3. OPEN DWV-336
- 4. WHEN demin water flows from I RWV-74, IBEN CLOSE DWV-336 ,
- 5. CLOSE the following valves
- 1. RWV-76, Outlet drain
- 2. RWV-74, Vent i
- 6. Remove and store DW hose
/
Initial /Date 1
l 4.9.6 WHEN DCHE-1B fill is complete o Close DC knife switch on the IHEN restore RWP-3B to breaker for RWP-3B and verify operable status power indication in control ;
O room.
. o Exit actions of Technical i Specifications j
/
Initial /Date l
l l
O OP-404 Rev. 98 Page 55
4.10 DECAY HEAT SYSTEM PURIFICATION USING MAKEUP & PURIFICATION SYSTEM .
O
~
ACTIONS DETAILS CAUTION: This flow path shall not be used when RC pressure is 1100 PSIG to prevent lifting MU System relief valves.
CAUTION: Performance of this section could affect Decay Heat removal during drain down conditions. !
4.10.1 Ensure flowpath is o Refer to OP-402, Makeup and established between the MU&P Purification System pre-filter inlets and the MU&P letdown filter outlets /
Initial /Date 4.10.2 Ensure that the Decay Heat j Os Removal System is in 1 operation per Section 4.5 of l this procedure / 1 Initial /Date 4.10.3 Isolate makeup tank from o CLOSE MUV-357 purification flowpath /
Initial /Date CAUTION: Closing MUV-90 or MUV-91 may result in damage to letdown filter pressure instrumentation.
4.10.4 Align letdown filter outlets o CLOSE MUV-182 MU-18-DPT Iso.
for DH purification o OPEN the following:
. MVV-203, MUFL-1A Outlet MUV-202, MUFL-1B Outlet MUV-521, MU-18-DPY Isol . J O '
Initial /Date OP-404 Rev. 98 Page 56
4.10 DECAY HEAT SYSTEM PURIFICATION USING MAKEUP & PURIFICATION SYSTEM (Cont'd)
ACTIONS DETAILS 4.10.5 Start DH purification 1. OPEN DHV-75 ("A" DH train) 0_8 DHV-76 ("B" DH train),
. Letdown Filter Supply to DH
- 2. Monitor Make up Purification pressure at MU-105-PI near Prefilter Room and maintain less than 100 PSIG.
Energize and throttle OPEN DHV-105 ("A" DH train) 0_8 DHV-106 ("B" DH train),
DH Supply to MU&P, until desired flowrate is obtained
- 3. Adjust DHV-110 QB DHV-111 to limit DH flow 13000 gpm
/
Initial /Date 4.10.6 @_EH DH purification is no 1. CLOSE and de-energize:
longer desired, DHV-105 JBf3 secure purification DHV-106 lineup 2. CLOSE the following:
DHV-75 DHV-76
- 3. Adjust DHV-110 QR DHV-111 to maintain DH flowrate 13000 gpm
/
Initial /Date 4.10.7 Restore MU&P lineup o RESTORE the following:
CLOSE MUV-203 CLOSE MUV-202 OPEN MUV-357 CLOSE MUV-521 OPEN MUV-182
/
Initial /Date
\
OP-404 Rev. 98 Page 57
L
!g 4.11 DECAY HEAT SYSTEN PURIFICATION USING SPENT FUEL SYSTEM 1
O -
l ACTIONS DETAILS CAUTION: Performance of this section could affect Decay Heat removal durin
- $*draindownconditions.
4.11.1 Notify Chemistry and Health Physics of impending lineup change /
Initial /Date 4.11.2 IE Spent Fuel Cooling System o Refer to OP-406, Spent Fuel is in operation, Cooling System 1113 ensure cooling is being accomplished by SFP-1A and SFHE-1A only /
Initial /Date 4.11.3 Ensure Decay Heat System is in o)eration per Section 4.5 !
of t1is procedure /
l Initial /Date 4.11.4 Ensure borated water recirculation is stopped /
Initial /Date 4.11.5 Ensure Spent Fuel System can o Ensure the following are support DH purification filled and vented:
SFDM-1 SFFL-1A SFFL-1B o Ensure Spent Fuel System boron concentration is 2 RCS boron concentration
/
Initial /Date OP-404 Rev. 98 Page 58
l 4.11 DECAY HEAT SYSTEM PURIFICATION USING SPENT FUEL SYSTEM (Cont'd)
ACTIONS DETAILS j 4.11.6 Align Spent Fuel Cooling 1. CLOSE/ ensure CLOSED the System for DH purification following: J SFV-50, SF Train Cross-tie SFV-49, "B" Train Disch SFV-46, BWST Isolation SFV-38, BWST Recirc Iso SFV-66, SF Filter Byp SFV-68, SFFL-1B Inlet SFV-69, SFFL Crosstie SFV-77, SFFL Crosstie SFV-76, SFFL-18 Disch ,
SFV-62, DW Isolation j SFV-91, DW Isolation i SFV-67, SF Filter Byp l SFV-54, SF Pool Iso l SFV-55, BWST Isolation l
- 2. OPEN/ ensure OPEN the !
following:
SFV-71, SFFL-1A Inlet SFV-75, SFFL-1A Outlet SFV-100, SFDM-1 Inlet O SFV-65, SFDM-1 Outlet SFV-70, SFFL-1B Inlet SFV-78, SFFL-1B Disch SFV-43, SF Filter Iso
/
Initial /Date i
1 OP-404 Rev. 98 Page 59
4.11 DECAY HEAT SYSTEM PURIFICATION USING SPENT FUEL SYSTEM (Cont'd)
ACTIONS DETAILS CAUTION: Ensure spent fuel purification pressure does not approach SF relief valve setting (125 PSIG) when initiating purification flow.
4.11.7 Start DH purification flow 1. Ensure CLOSED DHV-9 & 10, BWST Recirc Isolations
- 2. OPEN SFV-87, DH Supply Iso
- 3. OPEN SFV-85, DH Suction Iso
- 4. OPEN DHV-7 E DHV-8, DH Recirc Isolation, as applicable
- 5. OPEN DHV-48, DH Outlet to Spent Fuel
- 6. Throttle DHV-5 E DHV-6 to achieve approximately 150 gpm at SF-2-FI on 143 ft -
elevation. This may require l readjustment of DHV-110/111 as
/3 applicable d /
\
Initial /Date 1 4.11.8 MiEli SF purification is no 1. CLOSE the following:
longer desired, SFV-85 IllEH secure purification SFV-87 lineup DHV-7 E DHV-8 DHV-48
- 2. OPEN DHV-5 E DHV-6. This may require readjustment of DHV-110/111 as applicable
- 3. Restore Spent Fuel Cooling System as required per OP-405
/
Initial /Date
.r OP-404 Rev. 98 Page 60
. . = - -- . - . -
I 1
I 4.12 DH OPERATION DURING A LOCA ACTIONS DETAILS CAUTION: This procedure section establishes DHR which may result in l elevated radiation levels in the Auxiliary Buildin
- NOTE
- RCS pressure should be maintained above the RCP NPSH curve for the existing RCP operating combination per Curve 19 of OP-1038 unless establishing DHR.
NOTE: This procedure section does not allow simultaneous DHR and RCP operation.
NOTE: The performance of this section will result in one DHP
, operating in LPI mode, with the other operating in the Decay
- Heat Removal mode.
l i
! 4.12.1 Initial Conditions o PZR level 2. 50" o RCS cooldown in progress o Adequate Subcooling Margin exists i / l Initial /Date 4.12.2 H DHV-3 is not powered, o Unlock and Close breaker i Iti@ close breaker for o ES MCC 3Al 95' Aux Bld DHV-3
- /
!. Initial /Date NOTE: Aligning DHP-1A for DH removal is preferred, to enable spray and maintain LPI capabilities using DHP-1B.
4.12.3 E two LPI pumps are running, o E DHP-IA is to be aligned for Ilim determine which LPI pump DH removal, should be aligned for DH IH G GO TO Step 4.12.4 removal o E DHP-1B is to be aligned for DH removal, I!!G GO TO Step 4.12.19 ,
l Initial /Date OP-404 Rev. 98 Page 61
i O 4.12 DH OPERATION DURING A LOCA (Cont'd) b ~
ACTIONS DETAILS UNE UP AFTER COMPETNG STEPS &12.4THRU 412.14 we,.assem
"~
no_
j"i l m a a s'
'L rZ '
- L **
, %., \
= SS I
.h g,; g;;S;,,, l xa_
[s"mej.S O S .E >1
_, S_ s E
vouss on-at i
4.12.4 IE DHP.-1B is providing o OPEN/ Ensure OPEN the suction to HPI pumps, following:
JJim ensure the MVP suction o DHV-12 flow path is properly aligned o MUV-62 o MUV-69
/
Initial /Date CAUTION: IE LPI is providing suction to MUP(s),
Ijig MUP amps and flow should be carefully monitored while securing a DH pump.
4.12.5 Stop DHP-1A /
Initial /Date 4.12.6 Ensure DH cooler is properly o Refer to Step 4.5.1.6 aligned for Decay Heat Removal Operation /
lD Initial /Date OP-404 Rev. 98 Page 62
l i
n 4.12 DH OPERATION DURING A LOCA (Cont'd)
U
ACTIONS DETAILS i
4.12.7 Establish DHP-1A for Decay 1. Ensure the following valves Heat Removal Operation are closed:
DHV-8 DHV-11 DHV-34 DHV-42 i DHV-75 i DHV-76 l DHV-105 DHV-106 DHV-40
- 2. Open the following valves:
IE DHV-39 binds when opening, 1H,fN DHV-120 may be opened to equalize pressure DHV-39 ,
DHV-5 i O /
V Initial /Date l
4.12.8 Ensure DH/LPI train cooling o DCP-1A water pumps are operating o RWP-3A
/
Initial /Date NOTE: Violation of the RCP NPSH curves may be necessary to establish DHR. Operation in this condition with RCP(s) running should be minimized in both magnitude and duration.
4.12.9 Establish RCS conditions to o Ensure RCS temperature s 280*F enable placing DHR in service o Ensure RCS pressure s 200 PSIG
/
Initial /Date 1
O l 0P-404 Rev. 98 Page 63 ,
1
4.12 DH OPERATION DURING A LOCA (Cont'd)
ACTIONS DETAILS 4.12.10 Trip all running RCPs o RCP-1A o RCP-1B o RCP-1C o RCP-1D
/
Initial /Date NOTE: Whenever the RB 4 PSIG Isolation ES feature actuates and the RCS pressure is sufficient to overcome the head or height of ,
the Spray Header, then aligning the DH drop line to the RCS may 1 initiate RB Spray and cause the RCS to depressurize.
1 4.12.11 Isolate 'A' train RB spray 1. E the 4 PSIG Isolation ES l header as required and align feature has actuated, I DH drop line to 'A' train DH a.NE N it has been BYPASSED, I suction THEN place BSV-3 into MANUAL l and close BSV-3 :
E NJI actuated then verify
/ BSV-3 closed
- 2. Open DHV-3
- 3. Open DHV-4
- 4. Open DHV-41
/
Initial /Date 4.12.12 Establish DHR flow 1. Start DHP-1A ,
- 2. ,_.. Establish = 3000 gpm flow by I adjusting DHV-110, A-Train 1 flow control valve
/
Initial /Date O
OP-404 Rev. 98 Page 64
4.12 DH OPERATION DURING A LOCA (Cont'd) <
O ACTIONS DETAILS
~
1 NOTE:~. Clockwise rotation of DCV-177-MS simultaneously opens DCV-177 (increasing cooling flow) and closes DCV-17 (decreasing bypass flow) . Counterclockwise rotation causes the opposite results.
The purpose of this is to maintain DCP-1A flow within a minimum and maximum range to prevent pump runout and deadhead conditions.
NOTE: When required, the details for adjusting / controlling, (DCV-177-MS) DHHE-1A outlet temperature can be achieved by manually throttling DCV-177 and DCV-17 to obtain the desired position and action of the detail. For local manual operation of DCV-17 and DCV-177, refer to Enclosure 6 for guidance.
4.12.13 Lower RCS temperature to o Adjust DHHE cooling using DCV-177-s 200*F MS for DHHE-1A
/
Initial /Date O '
4.12.14 Reduce RCS pressure as low as o Reduce RCS pressure in the possible to reduce the following order:
leakage from the RCS 1. IE PZR bubble exists IHEN use PZR AUX spray
- 2. Reduce operating HPI pumps to one
- 3. Throttle HPI flow
- 4. OPEN PORV
/
Initial /Date O
OP-404 Rev. 98 Page 65
4.12 DH OPERATION DURING A LOCA (Cont'd) i
~
ACTIONS DETAILS NOTE: The following step is to protect DHP-18 and should be performed at the lowest possible RCS pressure but EMI be performed prior to exceeding region 10 flow (Indicated hrs of operating)DHP-18
<1400 gpm . in the restricted flow 4.12.15 Reduce RCS pressure to 5 100 o Reduce RCS pressure in the PSIG following order:
IHfB GO TO Step 4.12.16 !
- 2. Reduce operating HPI pumps to ;
one l E RCS pressure 1 100 PSIG, l JHEN GO TO Step 4.12.16
Initial /Date j u= m mm uu.nm uu. I i vo--
I%,, ,
W"_} 3 e
e A EA j %.
- SSS
=&G; a " ,
IL na l S - A M ~
M \ 'd
" A. g,, "
J,., a Tja nn '=
to m euenon O
OP-404 Rev. 98 Page 66
4.12 DH OPERATION DURING A LOCA (Cont'd) l O
1 ACTIONS DETAILS l
l 4.12.16 Secure DHP supplying Decay o 'STOP DHP-1A AND CLOSE DHV-110 Heat Removal
/
Initial /Date NOTE: The following step aligns the dropline to the R8 sump. A~ rapid RCS depressurization will occur. j 4.12.17 Depressurize RCS to RB Sump. 1. CLOSE DHV-41 ]
2.
OPEN DHV-42
- 3. OPEN DHV-41
/
Initial /Date
/ 4.12.18 Establish LPI flow to RCS 1. Ensure DHV-lll in AUTO with setpoint at 3000 GPM
- 2. OPEN DHV-7
- 3. OPEN DHV-8
- 5. Secure running HPI pump (s) ,
- 6. OPEN DHV-5 and DHV-6
- 7. Ensure CLOSED:
o MUV-23 .
o MUV-24 )
o MUV-25 o MUV-26 o DHV-11 o DHV-12
- 8. Exit this procedure
/
Initial /Date O
l OP-404 Rev. 98 Page 67
4.12 DH OPERATION DURING A LOCA (Cont'd)
~
ACTIONS DETAILS une unman comm.e mesuusmaucam ---
vo u oo m x. '% ..
lOM - .O_. .
O E 5.~. d
.mu. .3~ ~ g_
== ,9 N
A "ro_
["i'L s _ m A R x=
j,,
~
C. . . l .% 'O
- ~
= -
Q CAUTION: IE LPI is providing suction to MUP(s),
183 MUP amps and flow should be carefully monitored while securing a DH pump.
4.12.19 If DHP-1A is providing o OPEN/ Ensure OPEN the suction to HPI pumps, following:
IB M ensure the MVP suction o DHV-11 flow path is properly aligned o MUV-62 o MUV-69
/
Initial /Date 4.12.20 STOP DHP-1B / l Initial /Date l l
l 1
l l
O o
OP-404 Rev. 98 Page 68
4.12 DH OPERATION DURING A LOCA (Cont'd)
ACTIONS DETAILS 4.12.21 Ensure DH cooler is properly o Refer to Step 4.5.1.7 aligned for DHR Operation
/
Initial /Date 4.12.22 Establish DHP-1B for DHR 1. Ensure the following valves are closed:
DHV-7 DHV-12 DHV-35 DHV-43 DHV-75 DHV-76 DHV-105 DHV-106 DHV-39
- 2. Open the following valves:
IE DHV-40 binds when opening, O Igfi DHV-121 may be opened to equalize pressure DHV-40 DHV-6
/
Initial /Date 4.12.23 Ensure DH/LPI train cooling o DCP-1B water pumps are operating o RWP-3B
/
Initial /Date !
NOTE: Violation of.the RCP NPSH may be necessary to establish DHR.
Operation in this condition with RCP(s) running should be minimized in both magnitude and duration. i 4.12.24 Establish RCS conditions to o Ensure RCS temperature s 280*F enable placing DHR in service o Ensure RCS pressure 1 200 PSIG
/
Initial /Date O
V l
OP-404 Rev. 98 Page 69
l 4.12 !
DH OPERATION DURING A LOCA (Cont'd)
ACTIONS DETAILS l
l 4.12.25 Trip all running RCPs o RCP-1A o RCP-1B o RCP-lc o RCP-1D
/
Initial / Daw !
l NOTE: Whenever the RB 4 PSIG Isolation ES feature actuates and the RCS pressure is sufficient to overcome the head or height of the Spray Header, then aligning the DH drop line to the RCS may initiate RB Spray and cause the RCS to depressurize.
4.12.26 Isolate 'B' train RB spray 1. E the 4 PSIG Isolation ES header as required and align feature has actuated, DH drop line to 'B' train DH A@ it has been BYPASSED, suction IBffi place BSV-4 into MANUAL I
and close BSV-4 E @T actuated then verify BSV-4 closed
- 2. Open DHV-3 l g 3.
4.
Open DHV-4 Open DHV-41
/
Initial /Date 4.12.27 Establish DHR flow 1. Start DHP-1B ,
- 2. Establish = 3000 gpm flow by ;
adjusting DHV-111, B-Train I flow control valve l
/
Initial /Date .
1 O
OP-404 Rev. 98 Page 70 ,
I
4.12 DH OPERATION DURING A LOCA (Cont'd)
ACTIONS DETAILS
. NOTE: Clockwise rotation of DCV-178-MS simultaneously opens DCV-178 (increasing cooling flow) and closes DCV-18 (decreasing bypass flow) . Counterclockwise rotation causes the opposite results.
. The purpose of this is to maintain DCP-1B flow within a minimum and maximum range to prevent pump runout and deadhead ,
conditions..
NOTE: When required, the details for adjusting / controlling, (DCV-178-MS) DHHE-18 outlet temperature can be achieved by manually throttling DCV-178 and DCV-18 to obtain the desired position and action of the detail. For local manual operation of DCV-18 and DCV-178, refer to Enclosure 6 for guidance.
4.12.28 Lower RCS temperature to o Adjust DHHE cooling using DCV-178-
$ 200*F- MS for DHHE-1B
/
Initial /Date O
4.12.29 Reduce RCS pressure as low as o Reduce RCS pressure in the ;
possible to reduce the following order:
leakage from the RCS 1. IE PZR bubble exists, IHEN use PZR AUX spray
- 2. Reduce operating HPI pumps to one
- 3. Throttle HPI flow
- 4. OPEN PORV
/
Initial /Date
\
O OP-404 Rev. 98 Page 71
4.12 DH OPERATION DURING A LOCA (Cont'd)
~
ACTIONS DETAILS NOTE: The following step is to protect DHP-1B and should be performed at the lowest possible RCS pressure but EMI be performed prior to exceeding 10 hrs of operating DNP-1B in the restricted flow region (Indicated flow 1400 gpe) 4.12.30 Reduce RCS pressure to s 100 o Reduce RCS pressure in the PSIG following order:
/
Initial /Date I
I
]
i O j OP-404 Rev. 98 Page 72
- 4.12 DH OPERATION DURING A LOCA (Cont'd)
ACTIONS DETAILS uns wa sesuninmuuns . - -
m aust ok ,,.
% i
~
.L;R 8;s 8;;,
T
- @own RA l b A k b \"
""'on g, "
C., a 'A ommasunanonconna ,__
O y 4.12.31 Secure DHP supplying Decay o STOP DHP-1B AND CLOSE DHV-111 Heat Removal
/
Initial /Date NOTE: The following step aligns the dropline to the RB sump. A rapid RCS depressurization will occur.
4.12.32 Depressurize RCS to RB Sump 1. CLOSE DHV-41
- 2. OPEN DHV-43
- 3. OPEN DHV-41
/
Initial /Date O
OP-404 Rev. 98 Page 73
4.12 DH OPERATION DURING A LOCA (Cont'd)
ACTIONS DETAILS 4.12.33 Establish LPI flow to RCS 1. Ensure DHV-110 in AUTO with setpoint at 3000 GPM
- 2. OPEN DHV-7
- 3. OPEN DHV-8
- 5. Secure running HPI pump (s)
- 6. OPEN DHV-5 and DHV-6
- 7. Ensure CLOSED o MUV-23 o MUV-24 o MUV-25 o MUV-26 o DHV-11 o DHV-12
- 8. Exit this procedure
/
Initial /Date O
O V
OP-404 Rev. 98 Page 74
4.13 LONG-TERN POST-ACCIDENT C0OLING ACTIONS DETAILS -
NOTE: To avoid boron precipitation, the ECCS shall be placed in one of the following conditions within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after the accident.
4.13.1 jf the "A" DH train is in service taking suction from the RB sump, ItiEN Go To Step 4.13.2 Jf the "B" DH train is in service taking suction from '
the R8 sump, 92 JE the "A" DH train is NOT available, ItiEN GO TO Step 4.13.6 /
Initial /Date 4.13.2 Ensure the "A" decay heat o Refer to E0P-08, LOCA Cooldown O train is in service taking suction from the RB sump
/
Initial /Date 1
O ;
OP-404- Rev. 98 Page 75
.]
4.13 LONG-TERM POST-ACCIDENT C0OLING (Cont'd)
ACTIONS DETAILS -
NOTE: DH-45-FI is located on back section of Main Control Board by the RCP seal charts. DH-45-FIl is located at 95' Aux.
Building, in hallway, on south wall of the Triangle Room, near the "B" decay heat pit.
4.13.3 Establish core cooling using 1. Open LPI crossover valves:
DHP-1A and the DH drop line o DHV-7 (preferred method) o DHV-8
- 2. Stop the following pumps:
o DHP-1B i o BSP-1B i
- 3. Ensure closed: I o DHV-111 o DHV-39
- 4. Open/ ensure open:
DHV-3 DHV-4 DHV-41 DHV-40
~- DHV-43 DHV-42
- 5. Verify flowrate on drop line flow indicator (DH-45-FI or DH-45-FII) > 40 gpm
/
Initial /Date O
OP-404 Rev. 98 Page 76 1
. _ _ _ _ ._. _ - ~ . . . . . . _ . _ _ _ . .. _ _ _ _ _ _
4.13 LONG-TERN POST-ACCIDENT C0OLING (Cont'd)
ACTIONS DETAILS l
4.13.4 lE Step 4.13.3 was performed 1. En ure open DHV-42 successfully, 2. Close:
IBEN GO TO Step 4.13.5. DHV-3 DHV-4 IF NOT, ___ DHV-41 IBEM perform this step to DHV-43 establish flow through the DHV-34 auxiliary spray line. DHV-35 DHV-40 BSV-16
- 3. Close/ ensure closed PZR spray valves:
o RCV-13 and/or RCV-14
- 4. Open auxiliary spray valves:
o DHV-91 o RCV-53
- 5. Throttle DHV-5 and/or DHV-6 as necessary to maintain auxiliary spray flowrate > 40 O 6.
gpm as indicated on DH-46-FI GO TO Step 4.13.10
/
Initial /Date 4.13.5 Establish flow through the 1. Close PRZ spray valves:
auxiliary spray line. o RCV-13 and/or o RCV-14
- 2. Open auxiliary spray valves:
o DHV-91 o RCV-53 1
- 3. Throttle DHV-5 and/or DHV-6 as !
necessary to maintain l auxiliary spray flowrate
> 40 gpm as indicated on DH-46-FI
- 4. GO TO Step 4.13.10
~
/
Initial /Date O
OP-404 Rev. 98 Page 77
. . - . - .~ .--.~ .-.~ .. - - ..-. - ... ---.-. - . . - - .- .. --. - - . - - -_ ._
i i
l 4.13 LONG-TERN POST-ACCIDENT COOLING (Cont'd)
ACTIONS DETAILS -
4.13.6 Ensure the "B"' decay heat o Refer to E0P-08, LOCA Cooldown.
train is in service taking suction from the RB sump /
Initial /Date l 4.13.7 Establish core cooling using 1. Open LPI crossover valves:
l DHP-1B and-the DH drop line o DHV-7 1
(preferred method) o DHV-8 l- 2. Stop the following pumps:
l o DHP-1A o BSP-1A l 3. Ensure closed:
o DHV-110 o DHV-40 l
- 4. Open/ ensure open:
DHV-3 DHV-4 DHV-41 DHV-39 DHV-43 DHV-42
- 5. Verify flowrate on drop line flow indicator (DH-45-FI or DH-45-FII) > 40 gpm
/
Initial /Date l
\
l O
OP-404 Rev. 98 Page 78
l 4.13 LONG-TERN POST-ACCIDENT COOLING (Cont'd)
ACTIONS DETAILS '
4.13.8 IE Step 4.13.7 was performed 1. Ensure open DHV-43 successfully, 2. Close/ ensure closed:
M GO TO Step 4.13.9 DHV-42 DHV-34 IF NOT, DHV-35 E perform this ste) to DHV-39 establish flow throug1 the BSV-17 1 auxiliary spray line 3. Close/ ensure closed PZR spray valves:
o RCV-13 AND/0R o RCV-14
- 4. Open auxiliary spray valves:
o DHV-91 o RCV-53 ,
- 5. 0)en DHV-110
- 5. Tirottle DHV-5 and/or DHV-6 as necessary to maintain auxiliary spray flowrate > 40 gpm as indicated on DH-46-FI
- 6. GO TO Step 4.13.10 '
Initial /Date l 4.13.9 Establish flow through the 1. Ensure open DHV-43 auxiliary spray line 2. Close DHV-21
- 3. Close/ ensure closed:
DHV-34 DHV-35 BSV-17
- 4. Close PZR spray valves:
o RCV-13 AND/0R o RCV-14
- 5. Open auxiliary spray valves: 1 o DHV-91 o RCV-53
- 6. Open DHV-110 i
- 7. Throttle DHV-5 and/or DHV-6 as l necessary to maintain !
auxiliary spray flowrate > 40 gpm as indicated on DH-46-FI j
~
/
Initial /Date O
OP-404 Rev. 98 Page 79 1
4.13 LOM -TERM POST-ACCIDENT C00 LIM (Cont'd)
~
ACTIONS DETAILS 4.13.10 Notify Chemistry to sample RB IE Chemistry results indicate the RB sump water for boron sump is being diluted, concentration JEEfi perform the following as required: 1 Check for and attempt to isolate 1 any leaks into the reactor !
building l Determine if any unborated water is being admitted to the reactor building 1 Increase flowrate through the reactor vessel to minimize boron precipitation Consnence boron addition to the RCS as necessary to maintain adequate shutdown margin
-O '
Initial /Date 1
O OP-404 Rev. 98 Page 80
l f
4.14 ISOLATION AND RESTORATION OF INDIVIDUAL DECAY HEAT PUNPS AND HEAT EXCHANGERS ACTIONS DETAILS NOTE: The components listed below may be tagged per CP-115 as requested by Naintenance at the discretion of the SSOD.
4.14.1 Isolate DHP-1A ar.d DHHE-1A 1. Ensure "B" DH train is operable
- 2. Rack out DHP-1A breaker
- 3. CLOSE the following:
o DHV-110, Flow Control i o DHV-105, MU&P Inlet o DHV-92, Aux Spray Isol o DHV-21, DHP-1A Suction o DHV-39, Suction Crosstie o DHV-120, DHV-39 Bypass i o DHV-34, BWST Suction Isol '
- 4. Isolate cooling water to DHP-1A if required o DCV-95, DHP-1A Brg Inlet o DCV-96, DHP-1A Brg Outlet o DCV-29, DHP-1A Mtr Inlet o DCV-35, DHP-1A Mtr Outlet t 5. OPEN the following:
, o DHV-15 DHHE-1A Drain l o DHV-20 DHP-1A Drain o DHV-16, Line Vent o DHV-19, DHP-1A Vent l /
I Initial /Date l
4.14.2 lE desired to isolate DHHE-1A 1. Close DCV-5, DHHE-1A DC Inlet DC cooling water and drain Valve l DHHE-A, 2. Close DCV-7, DHHE-1A DC Outlet JH_EH position valves as Valve follows: 3. Open DCV-183, DHHE-1A DC Drain Valve
- 4. Open DCV-125, DHHE-1A DC Vent Valve
- 5. Open DCV-129, DHHE-1A DC Vent Valve Initial /Date e
OP-404 Rev. 98 Page 81
t l
4.14 ISOLATION AND RESTORATION OF INDIVIDUAL DECAY HEAT PUNPS AND HEAT D
I (J EXCHANGERS (Cont'd)
ACTIONS DETAILS
\
4.14.3 IE DHHE-1A DC cooled side is 1. Close DCV-7, DHHE-1A DC Outlet to be isolated but not Valve drained, 2. Close DCV-5, DHHE-1A DC Inlet IBEM position valves' as Valve ,
follows: 3. Open DCV-125, DHHE-1A Vent '
Valve
- 4. Open DCV-129, DHHE-1A Vent l Valve 1
/
Initial /Date 4.14.4 luiM DHP-1A maintenance is 1. Install temporary vent lines from complete, the following to available floor THEN fill and vent DHP-1A and drain:
DHHE-1A o DHV-16, Line Vent o DHV-19, DHP-1A Vent i
- 2. CLOSE the following: 1 o DHV-16 o DHV-19 l 0
, o o
DHV-20, DHP-1A Drain DHV-15, DHHE-1A Drain
- 3. OPEN the following:
o DHV-34, BWST Isolation o DHV-21 (sealed), DHP-1A Suction
! 4. OPEN the following until water l flow is detected, l I!!S CLOSE:
o DHV-16 o DHV-19
/
Initial /Date l
l
- l OP-404 Rev. 98 Page 82 i
,. 1
i:
l l
4.14 ISOLATION AND RESTORATION OF INDIVIDUAL DECAY HEAT PUMPS AND HEAT l EXCHANGERS (Cont'd)
ACTIONS DETAILS l
4.14.5 Restore DHP-1A 1. OPEN/ THROTTLE the following (refer to Valve Check List II for specified DC valve positions):
o DCV-95 (sealed), DHP-IA Brg Inlet o DCV-96 (sealed), DHP-1A Brg
' Outlet o DCV-29 (sealed), DHP-1A Mtr Inlet o DCV-35 (sealed), DHP-1A Mtr Outlet l o DHV-92, Aux Spray Isol
- 2. CLOSE the following:
o DHV-105, MU&P Inlet o DHV-39, Suction Crosstie o DHV-120, DHV-39 Bypass
- 3. Place DHV-110 controller in manual and throttle open for 10 - 15 seconds
- 4. Place DHV-110 in AUTO and controller at 3000 gpm
- 5. Rack in DHP-1A breaker
/ /
Initial /Date Verified by/Date 4.14.6 If DHHE-1A DC cooled side has 1. Install temporary vent lines from been isolated and drained, the following to available floor JJiE!i restore as follows: drains o DCV-125, Vent Valve o DCV-129, Vent Valve
- 2. Close DCV-183, Drain Valve Close DCV-125, Vent Valve Close DCV-129, Vent Valve
- 3. Open DCV-5, DHHE-1A Inlet Valve
- 4. Open the following until water flow is detected IBf!fClose:
o DCV-125, Vent Valve o DCV-129, Vent Valve
- 5. Open DCV-7, DHHE-1A Outlet Valve
/
Initial /Date 1
OP-404 Rev. 98 Page 83
+ .. . ..
S 4.14 ISOLATION AND RESTORATION OF INDIVIDUAL DECAY HEAT PUNPS AND HEAT EXCHANGERS (Cont'd)
^
ACTIONS DETAILS 4.14.7 IE DHHE-1A DC cooled side has 1. Close DCV-125, Vent Valve been isolated but not 2. Close DCV-129, Vent Valve drained, 3. Open DCV-5, Inlet Valve JREN restore as follows: 4. Open DCV-7, Outlet Valve 1
/
Initial /Date 4.14.8 Isolate DHP-1B and DHHE-1B 1. Ensure "A" DH train is operable l
- 2. Rack out DHP-1B breaker :
- 3. CLOSE the following: I o DHV-111, Flow Control 1 o DHV-106, MU&P Inlet o DHV-32, DHP-1B Suction o DHV-40, Suction Crosstie o DHV-121, DHV-40 Bypass o DHV-35, BWST Suction Isol
- 4. Isolate DHP-1B Cooling water if-O required o DCV-119, DHP-1B Brg Inlet o DCV-120, DHP-1B Brg Outlet o DCV-30, DHP-1B Mtr Inlet o DCV-36, DHP-1B Mtr Outlet
- 5. OPEN the following:
o DHV-27 DHHE-1B Drain o DHV-31 DHP-1B Drain o DHV-26, Line Vent o DHV-30, DHP-1B Vent
/ \
Initial /Date l
l l
O OP-404 Rev. 98 Page 84
4.14 ISOLATION AND RESTORATION OF INDIVIDUAL DECAY HEAT PUNPS AND HEAT l EXCl4 ANGERS (Cont'd)
]
ACTIONS DETAILS -
4.14.9 E desired to isolate DC 1. Close DCV-6, DHHE-1B DC Inlet I cooling water and drain Valve l DHHE-18, 2. Close DCV-8, DHHE-1B DC Outlet )
TH N position valves as Valve o ows: 3. Open DCV-184, DHHE-1B DC Drain Valve
- 4. Open DCV-126, DHHE-1B DC Vent Valve
- 5. Open DCV-130, DHHE-1B DC Vent Valve
/
Initial /Date 4.14.10 E DHHE-1B DC cooled side is 1. Close DCV-8, DHHE-1B DC Outlet to be isolated but not Valve drained, 2. Close DCV-6, DHHE-1B DC Inlet TH position valves as Valve o ows: 3. Open DCV-126, DHHE-1B DC Vent Valve
,m 4. Open DCV-130, DHHE-1B DC Vent U Valve
/
Initial /Date 4.14.11 )EiG DHP-1B maintenance is 1. Install temporary vent lines complete, from the following to l THEN fill and vent DHP-1B and available floor drain: l DHHE-1B o DHV-26, Line Vent i o DHV-30, DHP-1B Vent * '
- 2. CLOSE the following:
o DHV-26 o DHV-30 o DHV-31, DHP-1B Drain o DHV-27, DHHE-1B Drain i
- 3. OPEN o the following:
DHV-35, BWST Isolation o DHV-32 (sealed), DHP-1B Suction
- 4. OPEN the following until water flow is detected, TjiG CLOSE:
o DHV-26 o DHV-30
/
Initial /Date OP-404 Rev. 98 Page 85 1
, 1
4.14 ISOLATION AND RESTORATION OF INDIVIDUAL DECAY HEAT PUNPS AND HEAT EXCHANGERS (Cont'd)
ACTIONS DETAILS 4.14.12 Restore DHP-1B 1. OPEN/ THROTTLE the following (refer '
to Valve Check List 11 for specified DC valve positions):
o DCV-119 (sealed), DHP-1B Brg Inlet o _ DCV-120 (sealed), DHP-1B Brg ;
Outlet o DCV-30 (sealed), DHP-1B Mtr Inlet o DCV-35 (sealed), DHP-1B Mtr Outid
- 2. CLOSE the following:
o DHV-106, MU&P Inlet o DHV-40, Suction Crosstie o DHV-121, DHV-40 Bypass
- 3. Place DHV-111 controller in manual and throttle open for 10 - 15 seconds
- 4. Place DHV-111 in AUTO and controller at 3000 gpm
- 5. Rack in DHP-1B breaker
/ /
Initial /Date Verified by /Date 1 4.14.13 J.E DHHE-1B DC cooled side has 1. Install temporary vent lines from been isolated and drained, the following to available floor IHEN restore as follows: drains :
o DCV-126, Vent Valve
.o DCV-130, Vent Valve
- 2. Close DCV-184, Drain Valve Close DCV-126, Vent Valve Close DCV-130, Vent Valve ,
- 3. Open DCV-6, DHHE-1B Inlet Valve
- 4. Open the following until water flow is detected JHEN Close: l o DCV-126, Vent Valve '
o DCV-130, Vent Valve
. 5. Open DCV-8, DHHE-1B Outlet Valve
/
Initial /Date OP-404 Rev. 98 Page 86 ;
l 4.14 ISOLATION AND RESTORATION OF INDIVIDUAL DECAY HEAT PUMPS AND HEAT EXCHANGERS (Cont'd)
ACTIONS DETAILS 4.14.14 IE DHHE-1B DC cooled side has 1. Close DCV-126, Vent Valve been isolated but not 2. Close DCV-130, Vent Valve drained, 3. Open DCV-6, Inlet Valve IH B restore as follows: 4. Open DCV-8, Outlet Valve
/
Initial /Date O
O OP-404 Rev. 98 Page 87
l l 4.15 DCHE ISOLATION / RESTORATION FOR NAINTENANCE l O ACTIONS DETAILS
~
NOTE: Ensure RWV-33 is open prior to closing RWV-32.
NOTE: The following components may be tagged per CP-115 as requested l by Naintenance at the discretion of the $500.
1 l
4.15.1 Isolate DCHE-1A for 1. STOP RWP-3A and rack out maintenance breaker if required
- 2. CLOSE the following:
o RWV-18, Inlet Isolation a RWV-32, SWHE Outlet Cross Connect
, o RWV-28, RW Drain l o D0V-124, D0 Fill l
o RWV-110, RML-7 Outlet
- 3. De-energize cathodic i protection L 4. OPEN the following:
l o RWV-77, DCHE-1A Inlet Drain
! o RWV-75, DCHE-1A Outlet l Drain l o RWV-73, DCHE-1A Vent o RWV-9, RW-29-PI Isolation l /
! Initial /Date l
l 4.15.2 WHEN maintenance is complete, 1. CLOSE RWV-77, Inlet Drain JHER fill and vent DCHE-1A 2. Attach hose from DWV-336 to -
RWV-75, Outlet Drain
- 3. OPEN DWV-336, and RWV-75 to fill DCHE-1A
- 4. WHEN water issues from RWV-73, vent,
\
THEN close DWV-336
- 5. Close the following valves:
RWV-73, Vent RWV-75, Outlet Drain
- 6. Remove and store DW hose
/
l Initial /Date
!O OP-404 Rev. 98 Page 88
1 L
4.15 DCHE ISOLATION / RESTORATION FOR NAINTENANCE (Cont'd)
ACTIONS DETAILS l l
1 4.15.3 Restore DCHE-1A 1. OPEN the following:
o RWV-18 (sealed), Inlet Isolation o RWV-32, SWHE Outlet Cross Connect
- 2. Ensure OPEN:
o RWV-9, RW-29-PI Isolation
- 3. Energize cathodic protection 1
- / /
Initial /Date Verified by /Date l
- NOTE
- Ensure RWV-32 is open prior to closing RWV-33.
NOTE: The following components may be tagged per CP-115 as requested by Maintenance at the discretion of the SS00.
1 4.15.4 Isolate DCHE-18 for 1. STOP RWP-3B and rack out maintenance breaker if required
- 2. CLOSE the following:
o RWV-17, Inlet Isolation o RWV-33, SWHE Outlet Cross Connect o RWV-44, RW Drain o 00V-125, D0 Fill o RWV-109, RML-7 Outlet
- 3. De-energize cathodic protection
- 4. OPEN the following:
o RWV-78, DCHE-1B Inlet Drain o RWV-76, DCHE-1B Outlet Drain o RWV-74, DCHE-1B Vent o RWV-4, RW-28-PI Isolation
/
Initial /Date
!O OP-404 Rev. 98 Page 89
4.15 DCHE ISOLATION / RESTORATION FOR NAINTENANCE (Cont'd)
ACTIONS DETAILS 4.15.5 M maintenance is complete, 1. CLOSE RWV-78, Inlet Drain IHM fill and vent DCHE-1B 2. Attach hose from DWV-336 to RWV-76, Outlet Drain
- 3. OPEN DWV-336 and RWV-76 to fill DCHE-1B
- 4. WHEN water issues from RWV-74, Vent, JEH close DWV-336
- 5. CLOSE the following valves:
RWV-74, Vent RWV-76, Outlet Drain
- 6. Remove and store DW hose
/
Initial /Date 4.15.6 Restore DCHE-1B 1. OPEN the following:
o RWV-17 (sealed), Inlet Isolation
(' o RWV-33, SWHE Outlet Cross Connect
- 2. Ensure OPEN:
o RWV-4, RW-28-PI Isolation ,
- 3. Energize cathodic protection !
/ /
Initial /Date Verified by/Date j l
I i
l l
O OP-404 Rev. 98 Page 90 1
4.16 DHCCC PUNP ISOLATION / RESTORATION FOR NAINTENANCE ACTIONS DETAILS NOTE: The following components may be tagged per CP-115 as requested by Naintenance at the discretion of the 5500.
4.16.1 Isolate and drain DCP-1A for 1. STOP DCP-1A maintenance 2. CLOSE the following:
o DCV-1, DCP-1A Suction o DCV-3, DCP-1A Discharge o DCV-19, Surge Tank Outlet
- 3. Install temporary drain line between DCV-121, Surge Line Drain, and available floor drain
- 4. OPEN the following:
o DCV-121 o DCP-1A casing vent
- 5. Reinstall casing vent when pump is drained
/
Initial /Date O .
4.16.2 MiEH DCP-1A maintenance is 1. CLOSE DCV-121, Surge Line complete, Drain THEN fill and vent pump 2. OPEN DCP-1A casing vent
- 3. OPEN DCV-19, Surge Tank Outlet,1-3 turns to fill pump
- 4. CLOSE DCV-19 and reinstall pump casing vent when water flows from vent
/
Initial /Date O
OP-404 Rev. 98 Page 91
, 4.16 DHCCC PUNP ISOLATION / RESTORATION FOR NAINTENANCE (Cont'd)
ACTIONS DETAILS '
4.16.3 Restore DCP-1A lineup o OPEN and seal the following:
o DCV-1, DCP-1A Suction o DCV-3, DCP-1A Discharge o DCV-19, Surge Tank Outlet
/ /
Initial /Date Verified by /Date 4.16.4 Isolate and drain DCP-1B for 1. STOP DCP-1B maintenance 2. CLOSE the following:
o DCV-2, DCP-1B Suction i o DCV-4, DCP-1B Discharge o DCV-20, Surge Tank Outlet
- 3. Install temporary drain line between DCV-122, Surge Line Drain, and available floor drain
- 4. OPEN the following:
(^)g o DCV-122 o DCP-1B casing vent
- 5. Reinstall casing vent when pump is drained
/
Initial /Date i
4.16.5 W!!$ DCP-1B maintenance is
- 1. CLOSE DCV-122, Surge Line complete, Drain
]HM fill and vent pump 2. OPEN DCP-1B casing vent
- 3. OPEN DCV-20, Surge Tank Outlet, 1-3 turns to fill pump
- 4. CLOSE DCV-20 and reinstall pump casing vent when water flows from vent
/
Initial /Date O
OP-404 Rev. 98 Page 92
_ _ _ . . . _ . _ . _ . _ _ . _ . _ . _ . . . _ _ _ _ . . . _ . . . . _ _ . . _ . _ _ . _ _ _ . - _ . _ . = _ _ _ _ _ _ . _ . _ . _ _ _ _
4.16 DHCCC PUNP ISOLATION / RESTORATION FOR NAINTENANCE (Cont'd)
^~
ACTIONS DETAILS 4.16.6 Restore DCP-1B lineup o OPEN and seal the following:
o DCV-2, DCP-1B Suction o DCV-4, DCP-1B Discharge i o DCV-20, Surge Tank Outlet
/ /
Initial /Date Verified by /Date :
l 1
O '
) )
O OP-404 Rev. 98 Page 93
4.17 FILLING THE FUEL TRANSFER CANAL: "A" DH SYSTEM IN SERVICE. "B" DH SYSTEM RECIRC 0F BWST ACTIONS DETAILS 4.17.1 Fuel transfer tube flanges o Flanges removed per MP-125, Fuel removed and FTC Drain Flange Transfer Tube Covers (FHX-1A &
installed FHX-1B) and Drain Line Cover
/
Initial /Date 4.17.2 Cavity seal plate port covers o Plate port covers installed per installed FP-411, Seal Plate Inspection and Port Cover Installation
/
Initial /Date 4.17.3 Ensure drain line screen installed in FTC 4" deep
( end drain to R8 sump / ,
Initial /Date 4.17.4 Notify Maintenance Supt. or o Inspection of seal plate welds may designee of impending FTC be required prior to fill fill operation o Maintenance personnel are required for seal plate leak checks per FP-411
/ i Initial /Date 4.17.5 Pre-job briefing conducted with all personnel Operations, Maintenance, /
Health Physics) involved Initial /Date
~
4.17.5.1 BWST baron concentration meets the requirements of Technical Specification 3.9.1 /
O~ Initial /Date l OP-404 Rev. 98 Page 94
-. .. - .. ._ . ~ . - _ . - _ . - . . - _ - . - . ~ . - . . . - . - . - -- .. . - - . . . . - .
4.17 EILLING THE FUEL TRANSFER CANAL: "A" DH SYSTEN IN SERVICE. "B" DH SYSTEN RECIRC OF BWST (Cont'd) :
ACTIONS DETAILS 4.17.6. Test FTC level alarm o Close annunciator link 0347,
" Fuel Xfer Canal Lvl" o At local station, turn '" Horn Silence" on, then off, to verify alarm operability
/ .
Initial /Date l I
l 4.17.7 Ensure "A" DH System is in o Refer to Section 4.5 service /
Initial /Date 4.17.8 Align "B" DH System to 1. CLOSE DHV-40 recirculate the BWST 2. CLOSE DHV-8
- 3. OPEN DHV-35
- 4. Adjust DHV-111 controller to Ox approx. 1500 gpm
'5. OPEN DHV-7
- 6. OPEN DHV-9
/
Initial /Date i
NOTE: Ninimum continuous DH pump flow is 1400 gpm.
]
NOTE: RWV-150 will not properly control SW temp 9rature if RWP-38 is running.
4.17.9 Commence BWST recirculation 1. START OCP-18
- 2. START RWP-3B if required
- 3. START DHP-1B
- 4. THROTTLE DHV-111 to maintain approximately 1500 gpm
_ 5. Adjust DHP-1B low amp alarm as desired per Section 4.31
/
Initial /Date OP-404 Rev. 98 Page 95
4.17 FILLING THE FUEL TRANSFER CANAL: "A" DH SYSTEN IN SERVICE. "B" DH SYSTEN RECIRC OF BWST (Cont'd)
ACTIONS DETAILS 4.17.9.1 Ensure proper lubrication o Observe proper operation of of DHP-1B. Slinger Rings o Ensure proper oil levels I.
Initial /Date l
NOTE: Technical Specification cooldown rates do not apply when i filling the Fuel Transfer Canal IE step changes of $ 60*F are l maintained.
4.17.10 Verify delta temperature 1. Record DH Pump Suction and BWST between Reactor Coolant and temperatures:
BWST is less than 60*F o DH Pump (Supplying Core Cooling) Suction Temperature
- F o BWST Temperature *F
- 2. Calculate the delta temperature:
'F - *F = *F (DH Suct) (BWST) (AT)
- 3. Delta temperature is less than or equal to 60*F
/
Initial /Date 4.17.11 Ensure proper Fuel Transfer o SFV-180 Closed ,
Canal valve alignment o __, SFV-181 Closed i l o RCV-38 Closed o RCV-37 Closed o SFV-83 Closed o SFV-84 Closed
. /
Initial /Date O
OP-404 Rev. 98 Page 96
4.17 FILLIkG THE FUE'. TRANSFER CANAL: "A" DH SYSTEN IN SERVICE. "B" DH
/] SYSTE' REC 'RC 0 : BWST (Cont'd)
V .-
ACTIONS DETAILS i
4.17.12 Station operators to monitor o Station operators at the level while filling following:
Reactor vessel level indication Fuel transfer canal 95 foot elevation of Reactor Building
/ l Initial /Date !
I
- l CAUTION: Do not remove or alter any permanent or temporary radiation '
shielding while checking for seal plate leakage without authorization from Health Physics and the $S00.
NOTE: The primary method of seal plate leakage detection is R.B. surp level indication. Should drains to the sump become blocked then water seepage from between lead bricks at " doghouse" will O' be indicative of seal plate leakage. Seepage from lead bricks may not appear for several hours.
l 4.17.13 Begin periodic monitoring for o Monitor shielded access leakage from Fuel Transfer (" doghouse") to reactor vessel Canal vessel cavity for water leakage o Monitor R.B. sump level in the Control Room
/
Initial /Date NOTE: During FTC fill, DH flow is maintained at approximately 1500 gpm to minimize the transport of corrosion products from the core to the FTC water surface.
4.17.14 Commence FTC fill 1. OPEN DHV-6
- 2. CLOSE DHV-7 if required
- 3. __. Throttle DHV-111 to maintain
-1500 gpm
/
Initial /Date O
OP-404 Rev. 98 Page 97
)
l 4.17 FILLING THE FUEL TRANSFER CANAL: "A" DH SYSTEM IN SERVICE. "B" DH
/7 SYSTEM RECIRC 0F 8WST (Cont'd)
V ,
ACTIONS DETAILS 4.17.15 M FTC level increases 1. OPEN DHV-7 if closed l to approximately 146 foot 2. CLOSE DHV-6 elevation, M stop FTC fill, M monitor for seal plate /
leakage Initial /Date 4.17.16 If Fuel Transfer Canal 1. STOP DHP-1B leakage is unsatisfactory, 2. STOP RWP-3B JJiB inform SS00, 3. STOP DCP-1B M drain FTC to approx. 4. CLOSE DHV-7 6 inches below shallow end 5. CLOSE/ ENSURE CLOSED DHV-6 elevation, 6. CLOSE DHV-35 OTHERWISE "N/A" this step 7. GO TO Section 4.19
/
Initial /Date O 4.17.17 Continue FTC fill 1. OPEN DHV-6
- 2. CLOSE DHV-7 if required
- 3. Throttle DHV-111 to maintain
-1500 gpm
- 4. Monitor BWST for level and DHP-1B for cavitation
- 5. When BWST level decreases to 5 ft place the "BWST HTR3A/3B" control switch in the " Local" position
/
Initial /Date O
Q i OP-404 Rev. 98 Page 98 j
_____m ._ _. _ . _ _ . ._ ..- _ . _ . _ _ _ _ __ _._ . _ _ _ _ _ _ _
i 4.17 FILLING THE FUEL TRANSFER CANAL: "A" DH SYSTEN IN SERVICE. "B" DH SYSTEM RECIRC 0F BWST (Cont'd)
ACTIONS DETAILS l
4.17.18 WtiG FTC level increases to 1. OPEN DHV-7 if closed approximately 158 foot 2. CLOSE DHV-6 elevation, 3. STOP DHP-1B I.tiB stop FTC fill 4. STOP RWP-3B if started
- 5. STOP DCP-1B
/
Initial /Date 4.17.19 Restore "B" DH train to 1. Perform and verify the following normal lineup:
CLOSE DHV-35 CLOSE DHV-7 CLOSE DHV-9 DHV-111 in AUTO and controller adjusted to 3000 gpm CLOSE DHV-8 CLOSE DHV-40
- 2. Monitor BWST level for approx. 5 min for abnormal level change Performed By Verified By l l
4.17.20 Enable FTC low level horn and o Enable local horn for low FTC l energize canal lighting level by turning horn switch to "0N" (located near Incore pit) o Energize FTC lights if desired _
by closing Bkr 4, on ACDP-16 (feeder to ACDP-28, the supply to all FTC lighting)
/
Initial /Date O 1 OP-404 Rev. 98 Page 99
l 4.18 FILLING THF FUEL TRANSFER CANAL: "8" DH SYSTEM IN SERVICE. "A" DH SYSTEM RECIRC 0F 8WST ACTIONS DETAILS 4.18.1 Fuel transfer tube flanges o Flanges removed per MP-125, Fuel removed and FTC Drain Flange Transfer Tube Covers (FHX-1A &
installed FHX-18) and Drain Line Cover
/
Initial /Date 4.18.2 Cavity seal plate port covers o Plate port covers installed per installed FP-411, Seal Plate Inspection and Port Cover Installation
/
Initial /Date -
4.18.3 Ensure drain line screen installed in FTC 4" deep end O' drain to RB sump /
Initial /Date 4.18.4 Notify Maintenance Supt. or o Inspection of seal plate welds may designee of impending FTC be required prior to fill fill operation o Maintenance personnel are required for seal plate leak l checks per FP-411 i
/
Initial /Date i 4.18.5 Pre-job briefing conducted j with all personnel (Operations Maintenance, Health Physics) involved /
Initial /Date I
4.18.5.1 BWST boron concentration meets the requirements of O Technical Specification 3.9.1
/
Initial /Date OP-404 Rev. 98 Page 100
. _ ~ . _ . . . . . . - . . . - - . . ~ . . . - . - . . . . - . - . _ . _ .-.-. . - . ..._.
-4.18 FILLING THE FUEL TRANSFER CANAL: "B" DH SYSTEM IN SERVICE. "A" DH SYSTEM RECIRC 0F BWST (Cont'd)
ACTIONS DETAILS 4.18.6 Test FTC level alarm o Close annunciator link 0347
" Fuel Xfer Canal :.'il" o At local station, . turn " Horn Silence" on, then off, to verify alarm operability
/ ,
Initial /Date 4.18.7 Ensure "B" DH System is in o Refer to Section 4.5 service
/
Initial /Date 4.18.8 Align "A" DH System.to 1. CLOSE DHV-39 j recirculate the BWST 2. CLOSE DHV-7 O 3.
4.
OPEN DHV-34 Adjust DHV-110 controller to approx. 1500 gpm
- 5. OPEN DHV-8
- 6. OPEN DHV-9 !
/
Initial /Date NOTE: Minimum continuous DH pump flow is 1400 gpm.
4.18.9 Commence BWST recirculation 1. START DCP-1A
- 2. START RWP-3A
- 3. START DHP-1A
- 4. THROTTLE DHV-110 to maintain approximately 1500 gpm
- 5. Adjust DHP-1A low amp alarm as desired per Section 4.31
~
/
Initial /Date O
OP-404 Rev. 98 Page 101
4.18 FILLING THE FUEL TRANSFER CANAL: "B" DH SYSTEN IN SERVICE. "A" DH SYSTEN RECIRC 0F BWST (Cont'd)
ACTIONS DETAILS 4.18.9.1 Ensure proper lubrication o Observe proper operation of of DHP-1A Slinger Rings ;
o Ensure proper oil. levels i
/
Initial /Date i
l NOTE: Technical Specification cooldown rates do not apply when filling the Fuel Transfer Canal JE step changes of 160*F are maintained.
4.18.10 Verify delta temperature 1. Record DH Pump Suction and BWST between Reactor Coolant and temperatures: 4 BWST is less than 60*F ' o DH Pump (Supplying Core Cooling) Suction Temperature
'F l o BWST Temperature *F
- 2. Calculate.the delta temperature:
- F- *F = *F (DH Suct) (BWST) (AT)
- 3. Delta temperature is less than or equal to 60*F 4
/
Initial /Date 4.18.11 Ensure proper Fuel Transfer o SFV-180 Closed Canal valve alignment o SFV-181 Closed o RCV-38 Closed 4 o RCV-37 Closed o SFV-83 Closed o SFV-84 Closed
/
Initial /Di.
O OP-404 Rev. S8 Page 102
i 1 l
l 4.18 FILLING THE FUEL TRANSFER CANAL: "B" DH SYSTEN IN SERVICE. "A" DH l l SYSTEN RECIRC OF BWST (Cont'd)
ACTIONS DETAILS 1 i l
4.18.12 Station operators to monitor o Station operators at the level while filling following:
l Reactor vessel level indication Fuel transfer canal 95 foot elevation of Reactor Building
/
Initial /Date l ********************************************************************** l l CAUTION: Do not remove or alter any permanent or temporary radiation
! shielding while checking for seal plate leakage without '
I authorization from Health Physics and the 550D. i l .
l i
l f^ NOTE: The primary method of seal plate leakage detection is R.B. sump l l t level indication. Should drains to the sump become blocked L' then water seepage from between lead bricks at " doghouse" will i be indicative of seal plate leakage. Seepage from lead bricks may not appear for several hours.
4.18.13 Begin periodic monitoring for o Monitor shielded access leakage from Fuel Transfer (" doghouse") to reactor vessel Canal cavity for water leakage o Monitor R.B. sump level in the' l Control Room
/
Initial /Date l NOTE: During FTC fill, DH flow is maintained at approximately 1500 l gpm to minimize the transport of corrosion products from the i core to the FTC water surface.
. 4.18.14 Commence FTC fill 1. OPEN DHV-5
- 2. CLOSE DHV-8 if required
- 3. Throttle DHV-110 to maintain
-1500 gpm i O /
Initial /Date ,
OP-404 Rev. 98 Page 103
l
)
4.18 FILLING THE FUEL TRANSFER CANAL: "B" DH SYSTEN IN SERVICE. "A" DH SYSTEM RECIRC 0F BWST (Cont'd)
ACTIONS DETAILS l 4.18.15 W!Qi H FTC level increases to 1. OPEN DHV-8 if closed l approximately 146 foot 2. CLOSE DHV-5 elevation,
! Iliffi stop FTC fill M monitor for seal plate /
leakage Initial /Date l
4.18.16 IE Fuel Transfer Canal 1. STOP DHP-1A leakage is unsatisfactory, 2. STOP RWP-3A
_TjiQi inform SS0D 3. STOP DCP-1A M drain FTC to approx. 4. CLOSE DHV-8 6 inches below shallow end l 5. CLOSE/ ENSURE CLOSED DHV-5 elevation, 6. CLOSE DHV-34 OTHERWISE "N/A" this step 7. GO TO Section 4.20
/
Initial /Date O
4.18.17 Continue FTC fill 1. OPEN DHV-5
- 2. CLOSE DHV-8 if required
- 3. Throttle GHV-110 to maintain
-1500 gpm
- 4. Monitor BWST for level and DHP-1A for cavitation
- 5. When BWST level decreases to 5 ft place the "BWST HTR 3A/3B" control switch in the
" Local" position
/
Initial /Date l
l.
l .
l l
r '
(
OP-404 Rev. 98 Page 104
j 4.18 FILLING THE FUEL TRANSFER CANAL: "B" DH SYSTEM IN SERVICE. "A" DH SYSTEM RECIRC 0F BW5T (Cont'd)
^
ACTIONS DETAILS 4.18.18 )GiQi FTC level increases to 1. OPEN DHV-8 if closed approximately 158 foot 2. CLOSE DHV-5 elevation, 3. STOP DHP-1A
, IEN stop FTC fill 4. STOP RWP-3A l 5. STOP DCP-1A
/
Initial /Date 4.18.19 Restore "A" DH train to 1. Perform and verify the following l normal lineup: l CLOSE DHV-34 CLOSE DHV-8
_ CLOSE DHV-9 DHV-110 in AUTO and controller adjusted to 3000 gpm CLOSE DHV-7 CLOSE DHV-39
- 2. Monitor BWST level for approx.
5 min to detect any abnormal level change Performed By Verified By 4.18.20 Enable FTC low level and o _ Enable local horn for low FTC energize canal lighting level by turning horn switch to "0N" (located near Incore pit) o Energize FTC lights if desired by closing Bkr 4, on ACDP-16 (feeder to ACDP-28, the supply to all' FTC lighting)
. /
Initial /Date O
OP-404 Rev. 98 Page 105
l l
4.19 DRAINING FUEL TRANSFER CANAL VIA "A" DH SYSTEM l
( ~~
i ACTIONS DETAILS ,
P 4.19.1 Ensure "A" DH train in '
service and removing decay /
heat Initial /Date i
l 4.19.2 Ensure Fuel Transfer Tubes 1. Ensure Transfer Tube isolation are isolated valve seats are clear prior to I closing isolation valves, per FP-6010, Operation of Fuel Transfer Carriages and Upenders-FHCR-4A/4B l
- 2. Close SFV-119 Close SFV-120
/
Initial /Date 4.19.3 Disable FTC low level alarm o Turn local horn switch to f"' g and turn off FTC underwater "0FF" lights
(,,/ o Open annunciator link #0347,
" Fuel Transfer Canal Level Low" o Open breaker #4 on ACDP-16 (feeder to ACDP-28 for FTC underwater lighting panel RB-4)
.AJQ red tag to CE00 in accordance with CP-115 o Clearance number o Accepted by
/
Initial /Date 4.19.4 Station operators to monitor o Station operators at:
. level Fuel transfer canal Reactor vessel level indication
/
() Initial /Date OP-404 Rev. 98 Page 106
4.19 DRAINING FUEL TRANSFER CANAL VIA "A" DH SYSTEM (Cont'd)
O ACTIONS DETAILS -
CAUTION: Carefully monitor "A" decay heat cooler outlet temperature and DHP-1A arameters (flow, pressures, and amperage) while
- bENU***T**********************************************
4.19.5 Commence FTC drain 1. _ OPEN DHV-8 l
- 2. OPEN DHV-9 1
I
- 3. _ THROTTLE DHV-5 to establish desired flowrate to BWST
- 4. When the BWST level is > 5 ft, I place the "BWST HTR 3A/38" control switch to Auto 3A or Auto 3B l Initial /Date NOTE: Lowering FTC level < 136 feet via the SF system, taking a suction on the deep end, is the desired method to limit the amount of debris that can enter the vessel.
NOTE: Maintain DHP Flow and Vessel Level Within the Acceptable regions of OP-103B, curves 16 and 18.
4.19.6 Determine the final level o IE desired to draindown the desired in the Fuel Transfer FTC and maintain vessel level, Canal or Vessel _THB Go to Ste) 4.19.7 Lnd N/A Steps 4.19.9 t1 rough 4.19.14 o IE the vessel is defueled and it is desired to lower the FTC and vessel level using the DHP THEN Go to Step 4.19.9 _a.Dd N/A Steps 4.19.7 and 4.19.8
/
Initial /Date 4.19.7 kW.B FTC level decreases to 1. Fully open DHV-5 a))roximately 136 feet, 2. CTose:
113 stop FTC draindown DHV-8 DHV-9
. 3. Monitor BWST level for a) proximately 5 min to detect any a) normal level change
/
Initial /Date OP-404 Rev. 98 Page 107
4 4.19 DRAINING FUEL TRANSFER CANAL VIA "A" DH SYSTEM (Cont'd)
ACTIONS DETAILS - -
4.19.8 Continue draining per OP-406, o GO TO OP-406, Section 4.8 Spent Fuel Cooling System Initial /Date l
CAUTION: Vessel level will lower very rapidly when water level drops below the vessel flange if flow rate to the BWST is not l decreased.
4.19.9 M FTC level decreases to 1. Moi, "or vessel level and DHP approximately 136 feet, operating conditions closely M reduce DHP flow to 2. Adjust DHV-110 as required to
=1700 gpm attain =1700 gpm DHP flow
- 3. Adjust DHV-5 to maintain desired flow to the BWST
(
\
l Init'ial/Date 4.19.10 M the vessel level o GO to OP-406, section 4.8 decreases below 135'6" (below o Draindown FTC to desired level the seal plate flange), (Normally = 6" below the M concurrently perform FTC shallow end lip if the plenum draindown to the desired is in the deep end) l level per OP-406, Spent Fuel l Cooling System /
Initial /Date 4.19.11 M Vessel level decreases 1. Fully open DHV-5 to approximately 133 feet, 2. Close DHV-8 M stop the draindown and 3. Maintain DHP flow 21500 gpm vent the RCP seal packages 4. Vent all RCP seals:
Break Seal Injection flanges 9C Open top hat vents o_t Open Seal Injection line vents
/ j 1
Initial /Date ;
1 OP-404 Rev. 98 Page 108 l
4.19 DRAINING FUEL TRANSFER CANAL VIA "A" DH SYSTEN (Cont'd)
O ACTIONS DETAILS 4.19.12 M all RCP seals have been 1. Open DHV-8 verified to be vented, 2. Adjust DHV-110 as required to M continue draindown maintain =1700 gpm
- 3. ___ Adjust DHV-5 to control flow to the BWST
/
Initial /Date 4.19.13 M Vessel level has 1. Fully open DHV-5 decreased to 1 129.5', 2. Close:
M stop vessel draindown DHV-8 DHV-9
- 3. Monitor BWST and Vessel level for approximately 5 min-to detect any abnormal level changes
/
[ Initial /Cate 4.19.14 Establish an activity to o Activity established to restore RCP seal packages to restore RCP Seal Packages normal prior to subsequent prior to refill to include the refill to 1 133 feet following as required:
Seal Injection flanges restored Top hat vents closed
- Seal Injection line vents closed
/
Initial /Date O
OP-404 Rev. 98 Page 109
. _ _ _ _ _ . _ _ . - _ _ __ . . _ . . __ __ __ . ~..______._.__.m . _ __
I 4.20 DRAINING FUEL TRANSFER CANAL VIA "B" DH SYSTEN o ACTIONS DETAILS i
)
4.20.1 Ensure "B" DH train in and l removing decay heat / l Initial /Date j 4.20.2 Ensure Fuel Transfer Tubes 1. Ensure Transfer Tube isolation are isolated valve seats are clear prior to closing isolation valves, per FP-6010, Operation of Fuel Transfer Carriages and Upenders FHCR-4A/4B
- 2. Close SFV-119 Close SFV-120
/
Initial /Date l 4.20.3 Disable FTC low level alarm n
U and turn off FTC underwater lights o
o Turn local horn switch to "0FF" Open annunciator link #0347,
" Fuel Transfer Canal Level low" o Open breaker #4 on ACDP-16 (feeder to ACDP-28 for FTC underwater lighting panel RB-4) ANNJ red tag to the CE00 in accordance with CP-115 i
o Clearance number o Accepted by
/
Initial /Date 4.20.4 Station operators to monitor o Station operators at:
_ level Fuel transfer canal Reactor vessel level '
indication
/
Initial /Date OP-404 Rev. 98 Page 110
l I
4.20 DRAINING FUEL TRANSFER CANAL VIA "B" DH SYSTEN (Cont'd)
'~
ACTIONS DETAILS !
l CAUTION: Carefully monitor "B" decay heat cooler outlet temperature l and DHP-1B parameters (flow, pressures, and amperage) while l adjusting flow. l 4.20.5 Commence FTC drain 1. OPEN DHV-7
- 2. OPEN DHV-9
- 3. THROTTLE DHV-6 to establish desired flowrate to BWST
- 4. When the BWST level is > 5 ft, place the "BWST HTR 3A/3B" control switch to Auto 3A or Auto 3B
/
Initial /Date NOTE: Lowering FTC level < 136 feet via the SF system, taking a O suction on the deep end, is the desired method to limit the amount of debris that can enter the vessel.
NOTE: Naintain DHP Flow and Vessel Level Within the Acceptable regions of OP-103B, curves 16 and 18.
4.20.6 Determine the final level o J.E desired to draindown the desired in the Fuel Transfer FTC and maintain vessel level, Canal or Vessel .TjiG Go to Step 4.20.7 aD.d N/A ,
Steps 4.20.9 through 4.20.14 l o JF the vessel is defueled and '
it is desired to lower the FTC and vessel level using the DHP, JJiG Go to Step 4.20.9 and N/A Steps 4.20.7 and 4.20.8
/
Initial /Date O
OP-404 Rev. 98 Page 111
l l
l 4.20 DRAINING FUEL TRANSFER CANAL VIA "B" DH SYSTEN (Cont'd)
O ACTIONS DETAILS -
4.20.7 M FTC level decreases to 1. Fully open DHV-6 approximately 136 feet, 2. Close:
M stop FTC draindown DHV-7 DHV-9
- 3. Monitor BWST level for approximately 5 min to detect any abnormal level change
/
Initial /Date 4.20.8 Continue draining per o GO TO OP-406, Section 4.8 OP-406, Spent Fuel Cooling System /
Initial /Date CAUTION: Vessel level will lower very rapidly when water level drops A below the vessel flange if flow rate to the BWST is not V decreased.
4.20.9 WHEN FTC level decreases to 1. Monitor vessel level and DHP approximately 136 feet, operating conditions closely M reduce DHP flow to 2. Adjust DHV-lll as required to
=I700 gpm attain =1700 gpm DHP flow
- 3. Adjust DHV-6 to maintain desired flow to the BWST
/
Initial /Date 4.20.10 )f!!Q( the vessel level o _,,,G0 to OP-406, Section 4.8 decreases below 135'6" o Draindown FTC to desired level (below the seal plate (Normally = 6" below the flange), shallow end lip if the plenum M concurrently )erform is in the deep end)
FTC draindown to tie desired
, - level per OP-406, Spent Fuel Cooling System /
Initial /Date t
OP-404 Rev. 98 Page 112
. ... - . .- - . . . . - ~ - _ . - - . . - . - . . . . - . . - - . . - . . . .-
4.20 DRAINING FUEL TRANSFER CANAL VIA "B" DH SYSTEM (Cont'd) i O ACTIONS- DETAILS 4.20.11 M Vessel level decreases 1. Fully open DHV-6 ;
to approximately 133 feet, 2. Close DHV-7 IllEN stop the draindown And 3. Maintain DHP flow 11500 gpm l l
vent the RCP seal packages 4. Vent all RCP seals:
Break Seal Injection flanges E
Open top hat vents E Open Seal Injection line vents
/
Initial /Date 4.20.12 MHEN all RCP seals have been 1. Open DHV-7 verified to be vented, 2. Adjust DHV-111 as required to IllEN continue draindown maintain =1700 gpm
- 3. Adjust DHV-6 to control flow l to the BWST J
/ \
Initial /Date j o 4.20.13 WHEN Vessel level has 1. Fully open DHV-6 decreased to 1 129.5', 2. Close:
JJiEN stop vessel draindown DHV-7 DHV-9
- 3. Monitor BWST and Vessel level for approximately 5 min to detect any abnormal level changes
/
Initial /Date 4.20.14 Establish an activity to o Activity established to restore RCP seal packages to restore RCP Seal Packages normal prior to subsequent prior to refill to include the refill to 1133 feet following as required:
- Seal Injection flanges restored .
i -
Top hat vents closed l l - Seal Injection line vents I l
closed I I / j l Initial /Date i R
!U i
l l
l OP-404 Rev. 98 Page 113
l 1 l
1 i
i 4.21 BWST RECIRCULATION WITH ALTERNATE SUCTION TO DECAY HEAT PUMPS l
~
i ACTIONS DETAILS !
1 4.21.1 Ensure the Spent Fuel o Ensure STOPPED: 1 Cooling System is shut down o SFP-1A i o SFP-1B o SFP-2 '
o These components may be tagged per I CP-115 at the discretion of the l SSOD
/
Initial /Date CAUTION: Carefully monitor spent fuel pool and BWST levels while performing this section. Be alert for the possibility of an inadvertent water transfer.
l 4.21.2 Establish BWST recirc path 1. CLOSE the following:
p/
t" via the SF system SFV-8, "A" SF Pool Outlet SFV-10, SFP-1A Suction SFV-11, SFP-1B Suction SFV-14, SFP-2 Return Isol SFV-134, RML-4 Isolation SFV-21, SFP-2 Suction X-tie l SFV-88, Fuel Transfer Canal l Outlet SFV-9, "B" SF Pool Outlet SFV-6, Boric Acid Pump Outlet DHV-39, DHP-1A Inlet DHV-40, DHP-1B Inlet
- 2. OPEN the following:
SFV-12, Suction Header Isol SFV-13, BWST Outlet
.i SFV-7, SFP Suction Crosstie SFV-89, SF Outlet to DH DHV-9, BWST Recirc Isolation
/
. Initial /Date lO OP-404 Rev. 98 Page 114
l l
4.21 BWST RECIRCULATION WITH ALTERNATE SUCTION TO DECAY HEAT PUNPS (Cont'd)'.
~
ACTIONS DETAILS NOTE: RWP-3A is not required to be started if DC temperature is l expected to remain less than 105'F without RW heat removal.
4.21.3 IE DHP-1A is to be used, 1. OPEN the following:
IHEN perform this step, o DHV-39, DHP-1A Inlet OTHERWISE GO TO Step 4.21.6 o DHV-8, "A" DH Recirc Isol
- 2. START DCP-1A
- 3. START RWP-3A if required
- 4. CLOSE DHV-34, BWST.0utlet
- 5. Adjust DHV-110 controller'to control flow at 1500-1800 gpm
- 6. START DHP-1A
- 7. Adjust DHP-1A low amp alarm as desired per Section 4.31
/
Initial /Date 4.21.3.1 Ensure proper lubrication o Observe proper operation of of DHP-1A Slinger Rings o Ensure proper oil levels l
/
Initial /Date 4.21.4 M!!EN BWST recirc is no 1. STOP DHP-1A longer desired, 2. STOP RWP-3A if running IF_EH secure recire and 3. STOP DCP-1A realign decay heat system 4. CLOSE the following:
o DHV-39 o DHV-8
- 5. OPEN DHV-34
- 6. Adjust DHV-110 controller to control flow at approx. 3000 gpm and select "AUT0"
- 7. Monitor BWST level for approx. 5 min to detect-any
. abnormal level changes
/
_ Initial /Date OP-404 Rev. 98 Page 115 s
4.21 BWST RECIRCULATION WITH ALTERNATE SUCTION TO DECAY HEAT PUMPS (Cont'd)
~
ACTIONS DETAILS .
4.21.5 Realign SF and DH Systems to 1. Close/ Ensure closed the normal following:
SFV-89 SFV-13
- 2. Perform Valve Check List IV (Enclosure 4)
- 3. Exit this procedure
/
Initial /Date NOTE: RWP-3B is not required to be started if DC temperature is expected to remain less than 105'F without RW heat removal.
NOTE: RWV-150 will not properly control SW temperature if RWP-3B is running.
4.21.6 Commence BWST recirculation 1. OPEN the following:
o DHV-40, DHP-1B Inlet o DHV-7, "B" DH Recirc Isol
- 2. START DCP-1B
- 3. START RWP-38 if required
- 4. CLOSE DHV-35, BWST Outlet
- 5. Adjust DHV-111 controller to control flow at 1500-1800 gpm
- 6. START DHP-18
- 7. Adjust DHP-18 low amp alarm as desired per Section 4.31
/
Initial /Date 4.21.6.1 Ensure proper lubrication o Observe proper operation of of DHP-1B Slinger Rings 5 _, Ensure proper oil levels
. /
Initial /Date O)
OP-404 Rev. 98 Page 116
t I
l 4.21 BWST RECIRCULATION WITH ALTERNATE SUCTION TO DECAY HEAT PUNPS (Cont'd) lO ACTIONS DETAILS 4.21.7 MIEN BWST recirc is no 1. STOP DHP-1B longer desired, 2. STOP RWP-38 if running JJiEN secure recirc and 3. STOP DCP-1B realign decay heat system 4. CLOSE the following:
o DHV-40 o DHV-7
- 5. OPEN DHV-35 l 6. Adjust DHV-111 controller to
- control flow at approx. 3000 l gpm and select "AUT0" Monitor BWST level for 7.
- approx. 5 min to detect any abnormal level changes l /
l Initial /Date l
l 4.21.8 Realign SF and DH Systems to 1. Close/ Ensure closed the i
normal following:
SFV-13
_ _ SFV-89
- 2. Perform Valve Check List IV (Enclosure 4)
/
Initial /Date l
l l
OP-404 Rev. 98 Page 117 l
4.22 CROSS TIE OF DECAY HEAT FLOW TO REACTOR VESSEL "A" DECAY HEAT PUMP IN SERVICE ACTIONS DETAILS -
4.22.1 Ensure "A" DH train in o Refer to Section 4.5 service
/
-Initial /Date '
-NOTE: If DHV-7 or 8 do not' open electrically due to high differential pressure across the valve (s), it may be necessary to open the valve (s) manually.
4.22.2 Cross-connect DH trains 1. CLOSE DHV-111, "B" DH Train Flow Control
- 2. OPEN the following:
o DHV-8, "A" DH Crosstie o DHV-7, "B" DH Crosstie o DHV-6, "8" DH Outlet
/
Initial /Date O 4.22.3 Transfer DHP-1A flow to "B" 1. Monitor crossover flow on DH train DH-38-FI
- 2. CLOSE DHV-5, "A" DH Outlet
- 3. Adjust DHV-110 to maintain desired flowrate
- 4. Adjust DHP-1A low amp alarm as desired per Section 4.31
/
Initial /Date 4.22.4 WliEH cross connected 1. OPEN DHV-5
_ operation is no longer 2. CLOSE the following:
desired, o DHV-7 THEN restore normal lineup o DHV-8 o DHV-6
- 3. Adjust DHV-110 to maintain desired flowrate
- 4. Adjust DHV-111 controller to control at approximately 3000 and place in "AUT0"
/ /
Initial /Date Verified by/Date OP-404 Rev. 98 Page 118
4.23 CROSS TIE OF DECAY HEAT FLOW TO REACTOR VESSEL "B" DECAY HEAT PUMP IN SERVICE ACTIONS DETAILS 4.23.1 Ensure "B" DH train in o Refer to Section 4.5 service /
Initial /Date
~ NOTE: If DHV-7 or 8 do not open electrically due to high differential pressure across the valve (s), it may be necessary to open the valve (s) manually.
4.23.2 Cross-connect DH trains 1. CLOSE DHV-110, "A" DH Train Flow Control
- 2. OPEN the following:
o DHV-8, "A" DH Crosstie o DHV-7, "B" DH Crosstie o DHV-5, "A" DH Outlet
/
Initial /Date 4.23.3 Transfer DHP-1B flow to "A" 1. Honitor crossover flow on I DH train DH-38-FI I
- 2. CLOSE DHV-6, "B" DH Outlet
- 3. Adjust DHV-111 to maintain desired flowrate
- 4. Adjust DHP-1B low amp alarm as desired per Section 4.31
/
Initial /Date 4.23.4 RH.EH cross connected 1. OPEN DHV-6 operation is no longer 2. CLOSE the following:
desired, o DHV-7 IEN restore normal lineup o DHV-8 o DHV-5
- 3. Adjust DHV-111 to maintain '
desired flowrate
- 4. Adjust DHV-110 controller to ,
control at approximately 3000 1 gpm and place in "AUT0"
/ /
Initial /Date Verified by/Date OP-404 Rev. 98 Page 119 1
1
4.24 RAISING LEVEL IN PARTIALLY DRAINED RCS O '
ACTIONS DETAILS i
i 4.24.1 Ensure the decay heat system o Refer to Section 4.10 is on purification using the l
- MU&P System !
/
Initial /Date N
4.24.2 Establish RCS level watch E tygon tube level indication is unavailable in the Control Room via a camera / monitor,
- THEN assign a level watch at the l tygon level indicator and establish '
communications capability while changing level l
- /
Initial /Date I
4.24.3 E at anytime during the RCS level increase, RC-202-L1 (Computer Point R330) does not agree within 3" with the clear tygon tubing level indicatior.,
- JE H investigate the abnormality. Perform SP-195, Remote Reactor Vessel Level Instrumentation l Calibration, if required /
Initial /Date CAUTION: RC level instrumentation must be monitored continuously while changing level.
_ 4.24.4 Reduce purification flow to o Adjust DHV-105 or DHV-106 as
- approximately 25-30 gpm applicable
/
/O Initial /Date i
d OP-404 Rev. 98 Page 120
4 4.24 RAISING LEVEL IN PARTIALLY DRAINED RCS (Cont'd)
ACTIONS DETAILS CAUTION: Ensure the boron concentration of water added to the RCS is equal to or greater than required boron concentration for shutdown margin per Curve 18 or 19 of OP-103C.
NOTE: Batch feeds from two sources may be used provided that:
- 1) The resultant boron concentration of the batch feed is greater than or equal to the required boron concentration for shutdown margin per Curve 18 or 19 of OP-103C; AND
m 4.24.5 Add desired water volume o Make a batch addition per U from a suitable source to Section 4.6 of OP-402, Makeup the RCS & Purification System
/
Initial /Date 4.24.6 Monitor RCS level for at 1. Record level readings in least 15 min after making Nuclear Operator's Log addition 2. Secure watch (if applicable)
WtifN level readings have
_ at RC level instrumentation stabilized, if reactor vessel level is 2 THEN record level 132 feet
/
Initial /Date 4.24.7 Restore purification flow to o Adjust DHV-105 or DHV-106 as
. previous flowrate applicable
/
Initial /Date O
OP-404 Rev. 98 Page 121
~4.25 LOWERING LEVEL IN PARTIALLY DRAINED RCS
'~
ACTIONS DETAILS 4.25.1 Ensure the decay heat system o Refer to Section 4.10 is on purification using the MU&P System /
Initial /Date 4.25.2 Ensure RCS conditions are o Refer to SP-301, Enclosure 2, "RCS monitored during level Level and Temperature Logsheet" change for monitoring requirements
/
Initial /Date 1
4.25.3 Establish RCS level watch E tygon tube level indication is unavailable in the Control Room via a camera / monitor, IjiEN assign a level watch at the l tygon level indicator and establish
( communications capability while changing level
/
Initial /Date 4.25.4 E at any time during the RCS Draindown, RC-202-L1 (Computer Point R330) does not agree within 3" with the Clear Tygon Tubing Level Indication, THEN stop the Draindown and investigate the abnormality.
Perform SP-195, Remote Reactor Vessel Level Instrumentation Calibration, if required /
Initial /Date O
l 0P-404 Rev. 98 Page 122
4.25 LOWERING LEVEL IN PARTIALLY ORAINED RCS (Cont'd)
O ~
ACTIONS DETAILS NOTE: Maintain DHP Flow and Vessel Level Within the Acceptable regions of OP-1038, curves 16 and 18.
4.25.5 Remove water from-the RCS to o Make a batch bleed per Section 4.5 achieve desired level of OP-402, Makeup & Purification System
/
Initial /Date l
4.25.6 Monitor RCS level for at 1. Record level readings in l least 15 min after level is Nuclear Operator's Log i lowered 1 M level readings have stabilized, /
M record level Initial /Date
't NOTE: Maintain DHP Flow and Vessel Level Within the Acceptable regions of OP-1038, curves 16 and 18, 4.25.7 E RC level is <132', E tygon tube level indication is M maintain level watch unavailable in the Control Room via a camera / monitor, M maintain a level watch at the tygon level indicator 104 maintain continuous communications capability with the Control Room
/
Initial /Date i
OP-404 Rev. 98 Page 123
f-- 4.26 BWST RECIRCULATION WITH DHP-1A b
~
ACTIONS DETAILS
.4.26.1 Align the DH System for 1. OPEN the following:
recirculation using DHP-1A o DHV-34, BWST Suction Iso o DHV-8, "A" DH Recirc Iso o DHV-9, BWST Recirc Hdr Iso ;
- 2. THROTTLE 9HV-110 to approx.
3000 gpm
- 3. Ensure CLOSED:
o DHV-39, "A" DH Isolation o DHV-7, "B" DH Recirc Iso
/
Initial /Date NOTE: RWP-3A is not required to be started if DC temperature is expected to remain less than 105'F without RW heat removal.
i 4.26.2 Commence BWST recirculation 1. START DCP-1A I g 2. START RWP-3A if required
{/
s_- 3. START DHP-1A
/
Initial /Date :
I 4.26.2.1 Ensure proper lubrication o Observe proper operation of l of DHP-1A Slinger Rings o Ensure proper oil levels
/
Initial /Date 4.26.3 WHEN BWST recirculation is 1. Ensure DHV-110 controller to no longer desired, approximately 3000 gpm and in IHEN stop recirc flow "AUT0"
- 2. STOP DHP-1A
- 3. STOP RWP-3A if started
_ 4. STOP DCP-1A
/
Initial /Date Or OP-404 Rev. 98 Page 124
a i
l m 4.26 BWST RECIRCULATION WITH DHP-1A (Cont'd) i l
ACTIONS DETAILS I
i 4.26.4 Secure recirculation lineup 1. CLOSE the following:
I o DHV-34 i j o DHV-8 j
! o DHV-9 j 2. Monitor BWST level for 4 approx. 5 min to detect any i
4 abnormal level change j / /
j Initial /Date Verified By/Date i
i i !
9 i
i i 1
!O i
I i
)
O OP-404 Rev. 98 Page 125
.- . - .~ . .. - - -- . . . - .
l l
, 4.27 BWST RECIRCULATION WITH DHP-1B l s
~
ACTIONS DETAILS
]
4.27.1 Align the DH System for 1. OPEN the following: l recirculation using DHP-1B o DHV-35, BWST Suction Iso o DHV-7, "B" DH Recirc Iso o DHV-9, BWST Recirc Hdr Iso
- 2. THROTTLE DHV-111 to approx.
3000 gpm '
- 3. Ensure CLOSED: i o DHV-40, "B" DH Isolation I o DHV-8, "A" DH Recirc Iso
/
Initial /Date l
NOTE: RWP-3B is not required to be started if DC temperature is expected to remain less than 105'F without RW heat removal.
NOTE: RWV-150 will not properly control SW temperature if RWP-38 is running.
4.27.2 Commence BWST recirculation 1. START DCP-1B
- 2. START RWP-3B if required
- 3. START DHP-1B
/
Initial /Date
. 4.27.2.1 Ensure proper lubrication o Observe proper operation of of DHP-1B Slinger Rings o Ensure proper oil levels
/
Initial /Date 4.27.3 W3ffi BWST recirculation is
. 1. Ensure DHV-111 controller to no longer desired, approximately 3000 gpm and in
. JHffi H secure recirc flow "AUT0"
- 2. STOP DHP-18
- 3. STOP RWP-38 if started
,q 4. STOP DCP-1B V /
Initial /Date OP-404 Rev. 98 Page 126
4.27 BWST RECIRCULATION WITH DHP-1B (Cont'd)
ACTIONS DETAILS 4.27.4 Secure recirculation lineup 1. CLOSE the following:
o DHV-35 o DHV-7 o DHV-9
- 2. Monitor BWST level for approx. 5 min to detect any abnormal level change
/ /
Initial /Date Verified By/Date O
OP-404 Rev. 98 Page 127
l- 4.28 FEED AND BLEED OF DC SYSTEM FOR CHEMISTRY CONTROL l
O V'
ACTIONS DETAILS
~
l 4.28.1 Ensure that the DC surge o High level alarm - 11 ft 4 in tank level alarms are o Low level alarm - 8 ft 6 in i operable.and tank levels are l maintained by DCV-10 or /
DCV-12 as applicable Initial /Date l
4.28.2 Start feed and bleed as 1. Designate an operator to requested by Chemistry monitor drain valve and close as required
- 2. OPEN applicable drain valve and adjust flow to approx. 1.5 gpm o DCV-181, DCHE-1A Drain o DCV-182, DCHE-1B Drain
/
I Initial /Date-4.28.3 Secure feed and bleed when; o CLOSE applicable drain:
- 1. Notified by Chemistry o DCV-181 that DC System water o DCV-182 chemistry is within specifications 0.8
- 2. Automatic Engineered Safeguards Actuation '
Occurs /
Initial /Date iO i
OP-404 Rev. 98 Page 128
i l
1 4.29 C00LDOWN OF PRESSURIZER WITH AUXILIARY SPRAY (RCV-53) j O
V ~
ACTIONS DETAILS l
l CAUTION: Do not use Aux spray to degas the PZR. i NOTE: Whenever Auxiliary Pressurizer spray is required then the l pressurizer heaters must be off and the A TH0T temperature -
should be monitored.
NOTE: "A" DH train is preferred due to increased auxiliary spray flow.
4.29.1 Ensure sufficient pressurizer heaters /
available Initial /Date 4.29.2 Ensure No OTSG's are on Ensure CGP-2 is off l9 recirculation Ensure closed:
MSV-130 MSV-148 CGV-17 CGV-18
/
Initial /Date CAUTION: Verify subcooled conditions in both A and B loop hot legs while pressurizer is on spray.
- m ***********************************************************
4.29.3 Ensure RCV-53 is closed Close RCV-53
/
Initial /Date 4.29.4 Open DHV-91 /
Initial /Date OP-404 Rev. 98 Page 129
i l
4.29 C00LD0W 0F PRES $URIZER WITH AUXILIARY SPRAY (RCV-53) (Cont'd) i ACTIONS DETAILS
~
4.29.5 Throttle open RCV-53 to achieve desired spray flow
- Throttle open RCV-53 / j Initial /Date l
I
! 4.29.6 WBEH auxiliary spray flow is 1. Close RCV-53 l no longer desired, 2. Close DHV-91 l IllEN secure spray flow
/
Initial /Date l
l lO l l
l l
l l
l 1 I
i l
\ !
l l
l i
lO 4
l OP-404 Rev. 98 Page 130
4.30 SECURING DECAY HEAT REMOVAL O "
ACTIONS DETAILS CAUTION: Ensure cooling water is maintained to operating makeup pumps prior to securing DCP-1A/IB.
- v*****************************************
4.30.1 E securing DHP-1A, 1. STOP DHP-1A ItiEN continue with this 2. STOP RWP-3A step, 3. STOP DCP-1A OTHERWISE GO TO Step 4.30.2 4. CLOSE the following:
DHV-39 DHV-5
- 5. GO TO Step 4.30.3
/
Initial /Date 4.30.2 Secure "B" DH flow 1. _ STOP DHP-1B
(]
(>
2.
3.
STOP RWP-3B STOP DCP-1B
- 4. CLOSE the following:
DHV-6 DHV-40
/ ,
Initial /Date 4.30.3 E terminating DH removal, o CLOSE the following:
THEN continue with this DHV-3 DHV-39 step, DHV-4 DHV-40 ,
OTHERWISE mark "N/A" DHV-5 DHV-41 l
~
DHV-6 DHV-91 RCV-53
/ \
Initial /Date l l
OP-404 Rev. 98 Page 131
l i
4.30 SECURING DECAY HEAT REMOVAL (Cont'd)
~
l ACTIONS l DETAILS l
4.30.4 Return ES valves to standby o _ _ CLOSE/ ensure CLOSED the following:
DHV-34 DHV-35
- o ,__ Place the following in AUTO with controller set at 3007 gpm:
DHV-110 DHV-111 o' Close/ Ensure closed the following valves with breaker in lock / reset DHV-3*
DHV-105 DHV-106
/ /
Initial /Date Verified by /Date
- DHV-3 must have breaker locked to eye bolt on breaker cubicle door l
l I NOTE: Refer to Enclosure 5.
I 4.30.5 Align DHHE-1A to ES standby 1. Position the DCV-177-MS H rheostat to "0" (minimum ;
cooling)
- 2. CLOSE DCV-194, IA Supply from DCV-177-MS to temperature control valves
- 3. OPEN DCV-195, IA Vent from DCV-177-MS
/ /
I Initial /Date Verified by /Date I
~
[O l OP-404 Rev. 98 Page 132
4.30 SECURING DECAY HEAT REMOVAL (Cont'd) l
^^
ACTIONS DETAILS l i l
l NOTE: Refer to Enclosure 5.
4.30.6 Align DHHE-1B to ES standby 1. Position the DCV-178-MS rheostat to "0" (minimum
- cooling) i 2. CLOSE DCV-196, IA Supply from l DCV-178-MS to temperature l i control valves .
I 1
- 3. OPEN DCV-197, IA Vent from D0V-178-MS j
/ / ,
Initial /Date Verified by /Date lO l
l
- O I
OP-404 Rev. 98 Page 133
i p 4.31 SETTING DHP LOW AMPS ALARM SETPOINT I V
~
ACTIONS DETAILS 4.31.1 IE desired to adjust the o Adjustment will normally be Decay Heat Pump low amperage required following a pump start alarm, .
or a flow change when the RCS is JJi@ perform this section in a draindown condition l
/ 1 Initial /Date !
4.31.2 mig DH flow has stabilized o Pots are located inside the MCB and flow is at the desired on DH-56-IR for DHP-1A and DH setpoint, IR for DHP-1B IH M adjust potentiometer o Pots are a 0-100%, 10 turn until alarm is just received vernier dials (or clears) / l Initial /Date i I
O NOTE: An alarm setpoint as close to the operating amps of the pump without causing nuisance alarms is desired.
4.31.3 Lower the setpoint to an o Decrease setting on the operator desired value below potentiometer to a value as the existing pump amp value desired such that the alarm is clear and the setpoint is I slightly below the operating i amperage of the running DHP
/ l Initial /Date 4.31.4 Periodically verify the o This will ensure that as setpoint is close to the DHP conditions change (equipment operating amps warms up, RCS temperature changes, etc.) the setpoint will not drift too far away from the operating amps
~
/
Initial /Date O
OP-404 Rev. 98 Page 134
5.0 F0LLOW-UP ACTIONS ACTIONS DETAILS .
None 1
1 i
l l
1 i
I s
l I
l i
I
)
f
?
OP-404 Rev. 98 Page 135 l
l l
6.0 RESTORATION INSTRUCTIONS ACTIONS DETAILS. 1 None I
O O
OP-404 Rev. 98 Page 136
__ _.. _ .___. m . _ _ _ _ _ . _ _ _ _ _ _ . __ _ _ - _ . _ _ _ _ _ . . . _ _ _ _ _ - _ __ . . _ . _ . _ .
1 VALVE CHECK LIST _l_ ENCLOSURE 1 l
O (Page 1 of 2)
- l l
Systenn Decay Heat Seawater System Flow Diagram No. FD-302-611 l
Initials !
Valve No.' Description Position . Perform / Verify
.. "A" Train "
RWV-31 Isolation to RW-62-PS and RW 7-Pl Open /
RWV-39 lsolation to RW-9-Pl Open /
RWV-18 3A Decay Heat Seawater Pump Discharge Valve Sealed Open / _=
RWV-28 Drain Closed /
RWV-9 RW-29-PI Root Valve Open /
RWV-50 RW-44-CX Root Valve Closed / _
RWV-40 3A DH Seawater Train isolation to Discharge Canal Sealed Open /
RWV-73 3A DHHE Seawater Vent Closed /
RWV 75 3A DHHE Seawater Drain Closed /
RWV-77 3A DHHE Seawater Drain Closed /
RWV 32 SW-RW Outfall Valve
- Sealed /
Open/ Closed -
Locked ,
RWV-110 Secondary Release Outlet Closed /
l RWV-111 RW Sample Closed /
1 RWV-146 Flow Instrument isolation Viv Closed /
" 'B' Train "
RWV-47 RW-8-PT Root Valve Open /
RWV-48 RW-6-PI and RW-61 PS Root Valves Open /
RWV-17 3B Decay heat Semter Pump Discharge Valve Sealed Open /
RWV-44 Drain Closed /
RWV4 RW 28-Pl Root Valve Open /
RWV-49 RW-43-CX Root Valve Closed /
RWV-41 Isolation of DH Seawater to Discharge Canal Sealed Open /
~
RWV-74 3B DHHE Seawater Vent Closed /
RWV-76 3B DHHE Seawater Drain Closed /
NOTE: *At least I valve (RWV 32 or 33) open at all times.
OP-404 Rev. 98 Page 137
1 VALVE CHECK LISTI - ENCLOSURE 1 (Page 2 of 2)
System: Decay Heat Seawater System Flow Diagram No. FD-302 611 Initials i Valve No. Description Position Perform / Verify RWV-78 3B DHHE Seawater Drain Closed /
RWV-33 SW-RW Outfall Valve
- Sealed / l Open/ Closed l l Locked RWV-109 Secondary Release Outlet Closed /
RWV 147 Flow Instrument isolation Viv. Closed /
" Secondary Release Sample Station, Turb Exterior Wall" RWV-124 Secondary Release Sample (A) Closed /
RWV-126 Secondary Release Flush Closed /
l "RWP-4 Pump House at Discharge Canal" RWV-127 RWP-4 Suction Open /
RWV-120 Su'c tion Crossconnect Closed /
"RW Flush Water to DO Seawater Room Aux. 95'" l RWV 14S RWP-3A Flush Water to DO Sealed Open /
RWV-13S "A" Train Flush Water RW to DO Sealed Open /
RWV 144 Une Drain Closed /
i l RWV-138 Line Drain Closed /
RWV-143 RWP-3B Flush Water to DO Sealed Open /
RWV-139 Line Drain Closed /
RWV-140 Une Drain Closed /
RWV 136 "B" Train RW Flush Water to DO Sealed Open / l RWV 137 RWP-2A fiush Water to DO Sealed Open /
RWV-142 RWP-2B Flush Water to DO Sealed Open /
RWV-141 RWP-1 Flush Water to DO Open /
NOTE: *At least 1 valve (RWV 32 or 33) open at all times.
OP-404 Rev. 98 Page 138
--e. ,e,r, -
, - . . _.. .- - . - - - - _ _ - . ~ ~ . - . -.-. - - . -.- - - . _ - - . . . .
VALVE CHECK LIST~ 11 ENCLOSURE 2 (Page 1 of 9)
System: Decay Heat CCC System Flow Diagram No. FD-302-631 initials Valve No. Description Position Perform / Verify
" 3A DHCCC Surge Tank "
DCV-67 3A Surge Tank Level Indication Isolation Valve Open /
DCV 101 DC-59-Pl Instrument Isolation Open /
DCV-61 WD Vent 3A Surge Tank Open /
DCV-168 Vent 3A Surge Tank Closed /
DCV-176 Demineralized Water Line Drain at 3A Surge Tank Closed /
DCV-59 Deminerahzed Water inlet to 3A Surge Tank Note 1 Open /
DCV-169 Level Transmitter Isolation for 3A Surge Tank Open /
DCV-68 Level Indication isolation for 3A Surge Tank Open / !
DCV-72 Level Transmitter Isolation for 3A Surge Tank Open / l DCV 100 Level Indication Drain for 3A Surge Tank Closed /
DCV-63 3A Surge Tank Drain Closed /
DCV-19 3A Surge Tank Discharge Sealed Open /
DCV-121 3A Surge Tank Drain Closed /
DCV 187 WD Vent 3A Surge Tank Closed /
DCV-186 Nitrogen Supply Note 1 Open ./
" 3B DHCCC Surge Tank "
DCV-69 3B Surge Tank Level Indication isolation Valve Open .
/
DCV-102 DC-60-Pl Instrument isolation Open /
DCV-62 3B Surge Tank WD Vent Open /
DCV 167 38 Surge Tank Vent Closed /
DCV-175 Demineralized Water Drain at 3B Surge Tank Closed /
DCV-60 3B Surge Tank Demineralized Water inlet Note 1 Open /
DCV 170 Level Transmitter Isolation 38 Surge Tank Open /
DCV 70 Level Indication Isolation 3B Surge Tank Open /
NOTE 1: Ensure system integrity prior to opening these valves.
O OP-404 Rev. 98 Page 139
l l
VALVE CHECK LIST _ll FNCLOSURE 2 (Page 2 of 9)
System: Decay Heat CCC System Flow Diagram No. FD 302-631 O' initials Valve No. Description Position Perform / Verify -
DCV-74 Level Transmitter Isolation 3B Surge Tank Open / ,
t DCV-99 level Indication Drain 3B Surge Tank Closed /
DCV-64 3B Surge Tank Drain Closed /
DCV-20 38 Surge Tank Discharge Sealed Open /
DCV-122 3B Surge Tank Drain Closed /
DCV-189 WD Vent 3B Surge Tank Closed /
DCV-188 Nitrogen Supply Note 1 Open /
" 3A DHCCC Train "
DCV-1 3A DHCCC Pump Suction Sealed Open /
DCV-91 Chemical Addition isolation to 3A DHCCC Pump Closed /
DCV 75 Isolation to DC-1-Pl Open /
DCV-88 isolation to RM-L5 Open /
_ DCV-171 Flush Line RML-5 Closed /
DCV 202 RM-L5 Outlet Isolation Open /
DCV-201 RM-l5 Vent Closed /
DCV-200 RM-L5 Flush Une Closed /
DCV-204 RM-L5 Drain Closed /
DCV-203 RM-L5 Inlet isolation Open /
DCV-172 Flush Line RML-5 Closed /
l DCV-87 Isolation to DC-45-Fi Open / l DCV-3 3A DHCCC Pump Discharge Sealed Open /
DCV-77 PI-3 Isolation Closed /
DCV-79 PT-5 Isolation Open /
DCV 73 DC-61-Fi Isolation Open /
DCV-71 DC-61-Fi isolation Open /
DCV-85 PS-55 Isolation Open /
DCV-97 Sample isolation Closed /
" 38 DHCCC Train "
~
DCV-2 3B DHCCC Pump Suction Sealed Open /
DCV-92 Chemical Addition isolation to 3B DHCCC Pump Closed /
NOTE 1: Ensure system integrity prior to opening these valves.
OP-404 Rev. 98 Page 140
VALVE CHECK LIST l ENCLOSURE 2 (Page 3 of 9) l System: Decay Heat CCC System Flow Diagram No. FD-302 631 initials Valve No. Description Position Perform / Verify -
DCV 76 isolation to DC-2-Pl Open /
DCV-89 RM-L6 Sample line Isolation Open /
, DCV-173 RML-6 Drain Closed /
DCV-209 RM-L6 Isolation Open /
J DCV 208 RML-6 Vent Closed /
. DCV-207 Flush Une RML-6 Closed /
'4 DCV 211 RM-L6 Drain Closed /
i DCV-210 RM-L6 lsolation Open /
DCV-174 RML-6 Drain Closed I /
f DCV-90 RML-6 Sample Line Isolation Open /
DCV-4 3B DHCCC Pump Discharge Sealed Open /
DCV-78 Isolation to DC-4-PI Closed /
DCV-80 Isolation to DC-6-PT Open /
j DCV-93 DC-62-Fl isolation Open /
DCV-94 DC-62-Fi Isolation Open /
DCV-86 Isolation to DC-56-PS Open /
DCV-98 Sample Isolation Closed /
" 3A DHCCC Train **
DCV-131 Drain Closed /
DCV-123 Vent Closed /
DCV-S 3A Decay Heat Removal Heat Exchanger Inlet Sealed Open /
DCV-17 Sealed in Full Manual 3A Decay Heat Removal Heat Exchanger Inlet / Outlet Counterclockwise Handiack X-tie Manual Handiack Position /
DCV-177 Sealed 11/4 Manual 3A Decay Heat Removal Heat Exchanger Outlet Tums from the Handjack Manual Handjack Full /
Counterclockwise Position DCV-125 3A Decay Heat Exchanger Vent Closed /
. DCV-129 3A Decay Heat Exchanger Vent Closed /
DCV-127 Drain Closed /
DCV-7 3A Decay Heat Exchanger Isolation Sealed Open /
DCV-160 Vent Closed /
OP-404 Rev. 98 Page 141
.- .. - . - --- =_-.
l l A VALVE CHECK LIST ,_j.l_ ENCLOSURE 2 l
Q (Page 4 of 9)
System: Decay Heat CCC System Flow Diagram No. FD 302 631 Initials Valve No. Description Position Perform / Verify DCV-13 3A DHCCCS Heat Exchanger inlet Sealed Open /
DCV-81 Isolation to DC-41 PI Open /
DCV-82 Isolation te DC-42-Pl Open /
DCV-181 3A DHCCC Heat Exch. Drain Closed /
DCV 183 3A DH Removal HE Drain Closed /
" 3B DHCCC Train a DCV-146 Drain Closed /
DCV-124 Vent Closed /
DCV-6 3B Decay Heat Removal Heat Exchanger inlet Sealed Open /
DCV-18 Sealed in Full Manual 3B Decay Heat Removal Heat Exchanger inlet / outlet X- Counterclockwise Handiack tie Manual Handiack Position /
Sealed 5-3/4 (V DCV-178 Manual Turns from the Full 3B Decay Heat Removal Heat Exchanger Outlet Manual Counterclockwise Handiack Handiack Position /
DCV-126 3B Decay Heat Exchanger Vent Closed /
DCV-130 3B Decay Heat Exchanger Vent Closed /
DCV-128 Drain Closed /
DCV-8 3B Decay Heat Exchanger Isolation Sealed Open /
DCV-159 Vent Closed /
DCV-14 3B DHCCCS Heat Exchanger inlet Sealed Open /
DCV-83 Isolation to DC-43-PI Open /
DCV-84 Isolation to DC-44-PI Open /
DCV 182 3B DHCCC Heat Exch. Drain Closed /
DCV-184 3B DH Removal HE Drain Closed /
" 3A DHCCC Train " _ , , .
DCV-15 3A DHCCCS Heat Exchanger Outlet Sealed Open /
DCV 164 Vent Closed /
I DCV-179 Vent Closed /
i (
OP-404 Rev. 98 Page 142
l l
p VALVE CHECK UST._!L ENCLOSURE 2 l (j (Page 5 of 9) '
System: Decay Heat CCC System Flow Diagram No FD 302-631 initials Valve No. Description Position Perform / Verify
" 3A Decay Heat Pump Air Handling Unit "
DCV-32 3A Air Handling Fan inlet Sealed Open /
Scaled 1-3/4 DCV-38 3A Air Handling Fan Outlet Turns Open /
DCV-161 Vent Closed /
I
! "3A Decay Heat Pump Motor" 1
l DCV-95 3A Stuffing Box and Bearing inlet Sealed 1 1/4 /
Turns Open DCV-% 3A Stuffing Box and Bearing Outlet Sealed Open /
DCV-29 3A Decay Heat Pump Motor inlet Sealed Open /
1 Sealed 1 DCV-35 3A Decay Heat Pump Motor Outlet Tum Open /
" 3B DHCCC Train "
DCV-16 38 DHCCCS Heat Exchanger Outlet Sealed Open /
DCV 163 Vent Closed /
DCV-180 Vent Closed / !
" 3B Decay Heat Pump Air Handling Unit "
DCV-31 3B Air Handling Fan inlet Sealed Open /
Sealed 1-3/4 DCV-37 3B Air Handling Fan Outlet Tums Open /
DCV 162 Vent Closed /
" 3B Decay Heat Pump Motor "
, Sealed 1 1/2 DCV 119 3B Stuffing Box and Bearing inlet Turns Open /
DCV-120 3B Stuffing Box and Bearing Outlet Sealed Open /
DCV-30 3B Decay Heat Pump Motor Inlet Sealed Open /
Sealed 7/8 DCV-36 3B Decay Heat Pump Motor Outlet Turn Open /
l OP-404 Rev. 98 Page 143
l t
!p VALVE CHECK UST ll ENCLOSURE 2 (Page 6 of 9)
System: Decay Heat CCC System Flow Diagram No. FD-302 631 initials j Valve No. Description Position Perform / Verify
" 3A DHCCC Train "
" Reactor Building Spray Pump 3A Motor "
Sealed 2 j DCV-115 3A Stuffing Box and Bearing Inlet Tums Open / ;
1 DCV-116 3A Stuffing Box and Bearing Outlet Sealed Open /
DCV-27 3A Building Spray Pump Motor inlet Sealed Open /
Sealed 3/4 DCV-33 3A Building Spray Pump Motor Outlet Tum Open /
i
" 3A Decay Heat Seawater Pump Motor "
DCV-43 3A Raw Water Pump Inlet Sealed Open /
! l l Sealed 2 '
l DCV-45 3A Raw Water Pump Outlet Tums Open / I
-- DCV 166 Drain Closed /
U DCV-205 RWP-3A Motor Cooler Vent Closed .
/ j
" 3B DHCCC Train "
" Reactor Building Spray Pump 3B Motor "
Sealed 2 DCV-117 3B Stuffing Box and Bearing inlet Tums Open /
DCV-118 38 Stuffing Box and Bearing Outlet Sealed Open /
DCV-28 3B Building Spray Pump Motor inlet Sealed Open / j Scaled 7/8 j DCV-34 3B Building Spray Pump Motor Outlet Tums Open /
" 38 Decay Heat Seawater Pump Motor "
DCV-44 3B Raw Water Pump Inlet Sealed Open /
Sealed 4 DCV-46 3B Raw Water Pump Outlet Turns Open /
DCV-165 Drain Closed /
i DCV-206 RWP03B Motor Cooler Vent Closed /
A
, V i
1
- OP-404 Rev. 98 Page 144 l
l 1
VALVE CHECK LIST 11 ENCLOSURE 2 (Page 7 of 9)
System: Decay Heat CCC System Flow Diagram No. FD 302 631 initials Valve No. Description Position Perform / Verify
" 3A DHCCC Train "
" Makeup and Purification 3A Pump Motor "
DCV-132 Vent Closed /
DCV-133 Drain Closed /
DCV-134 Vent Closed /
DCV 135 Drain Closed /
DCV 136 Vent Closed /
DCV-137 Drain Closed /
- Sealed DCV-21 DHCCC isolation inlet 3A Makeup and Purif. Motor Closed /
DCV-39 3A Makeup and Purification Sealed Open /
DCV-47 3A Makeup and Purification Sealed Open /
DCV-48 3A Makeup and Purification Sealed Open /
Sealed 51/2 DCV-41 3A Makeup and Purification Tums Open /
Sealed 2-1/2 DCV-51 3A Makeup and Purification Tums Open /
" 38 DHCCC Train "
" Makeup and Purification 3C Pump Motor "
DCV-147 Vent Closed /
DCV-148 Drain Closed /
DCV-149 Vent Closed /
DCV-150 Drain Closed /
DCV-151 Vent Closed /
DCV-152 Drain Closed /
- App. R requires MUP-3A to be cooled by SW cooling. l 1
O l
1 l OP-404 Rev. 98 Page 145 l )
t l
VALVE CHECK LIST ~11 ENCLOSURE 2 (Page 8 of 9)
System: Decay heat CCC System Flow Diagram No FD 302 631 initials Valve No. Description Position Perform / Verify l
'
- Sealed Closed /
Open DCV-22 DHCCC isolation inlet 3C Makeup and Purif. Motor /
DCV 153 Vent l
Closed / i i
DCV-40 3C Makeup and Purification Motor Inlet l Scaled Open / )
DCV-49 3C Makeup and Purification Motor inlet Sealed Open /
DCV-50 3C Makeup and Purification Motor inlet Sealed Open /
l Sealed 9 l DCV-42 3C Makeup and Purification Motor Outlet Turns Open /
Sealed 21/2 DCV-53 3C Makeup and Purification Motor Outlet Turns Open /
l
" 3A DHCCC Train "
" Makeup and Purification 3A Pump Motor "
Sealed 3 Tums DCV-52 3A Makeup and Purification Motor Outlet Open /
DCV-139 Vent Closed /
DCV-140 Drain Closed / l NOTE 1 DHCCC isolation Discharge 3A Makeup and Purif. I DCV-25 Motor Sealed Closed /
DCV-141 Vent Closed /
DCV-142 Drain Closed / j DCV-143 Vent Closed /
DCV-144 Drain Closed / '
" DHR Cooler 3A Temperature Controls "
DCV 194 Air Supply Line Iso. Vlv Open /
DCV 195 Air Supply Une Vent Viv Closed /
' DC is the normal cooling for MUP 3C.
l NOTE 1: App. R requires MUP 3A to be cooled by SW cooling.
OP-404 Rev. 98 Page.146
VALVE CHECK LIST ~ll ENCLOSURE 2 (Page 9 of 9)
System: Decay Heat CCC System Flow Diagram No. FD 302-631 Initials Valve No. Description Position Perform / Verify
" RCBT Area "
DCV-145 Vent Closed /
" 3B DHCCC Train "
" Makeup and Purification 3C Pump Motor "
- Scaled 2-1/4 l DCV-54 3C Makeup and Purification Motor Outlet Turns Open /
DCV-154 Vent Closed /
DCV 155 Drain Closed /
DCV-26 NOTE 2 Sealed / l DHCCC isolation Outlet 3C Makeup and Purif. Motor Closed /Open DCV-156 Vent Closed /
DCV-157 Drain Closed /
( DCV 158 Vent Closed /
" DHR Cooler 3B Temperature Controls "
DCV 1% Air Supply Line Iso. Viv Open /
DCV-197 Air Supply Line Vent Viv Closed /
NOTE 2: DC is the normal cooling for MUP-3C.
OP-404 Rev 98 Page 147
._ ..-_m . _ < _ _ _ _ _ _ _ _ . _ _ . _ _ _ _ _ _ _ . _ _ . _ _ _ . _ . . _ . _ _ . _ _ . _ _ _ - _ . _ -
VALVE CHECK LIST lli ENCLOSURE 3 (Page 1 of 5)
System: Decay Heat Retroval System Flow Dias' ram No. FD-302 641 d initials Valve No. Description Position Perform / Verify -
" "N Train "
" Intermediate Area "
DHV 39 RC System isolation to Decay Heat Suction NOTE 2 Open/ Closed /
DHV-86 Drain Closed /
DHV-87 Vent Closed /
DHV-88 Vent Closed / _
DHV-41 Motor-Operated Iso.-RC System to Decay Heat Suction NOTE 1 Open/ Closed
/
Closed &
- DHV-85 Drain Capped /
DHV-8 Root Valve to Recirculation Header Closed /
DHV-48 Decay Heat to Spent Fuel System Closed /
DHV-49 Drain to Miscellaneous Waste Storage Tank Closed /
DHV-9 Decay Heat Recirculation to BWST Closed /
DHV 10 DHV-9 Bypass Closed /
DHV 120 DHV-39 Bypass Closed /
DHV-5 Decay Heat isolation to RC System NOTE 2 Open/ Closed /
Closed &
DHV 79 Drain Capped /
DHV-95 Pressurizer Spray Header Drain Closed /
DHV-126 MU to DH Crossconnect throttle Viv. Closed /
DHV-91 Decay Heat Isolation to Pressurizer Spray Closed /
Closed &
DHV-% Drain Capped /
" '8' Train "
" Intermediate Area "
DHV 40 RC System isolation to Decay Heat Suction NOTE 3 Open/ Closed /
DHV-121 DHV-40 Bypass Closed /
DHV-7 Root Valve to Recirculation Header Closed /
DHV-6 Decay Heat isolation to RC System NOTE 3 Open/ Closed /
. Closed &
- DHV-80 Drain Capped /
NOTE 1: Open if DH Removal is in operation.
) NOTE 2: Open if "N Train DH Removal is in operation.
NOTE 3: Open if "B" Train DH Removal is in operation.
OP-404 Rev. 98 Page 148
VALVE CHECK UST lli ENCLOSURE 3 (Page 2 of 5) l p System: Decay Heat Removal System Flow Diagram No. FD 302 641 ;
initials Valve No. Description Position Perform / Verify -
"'A' Train"
" Decay Heat Pit Area" DHV-34 BWST isolation to Decay Heat System Closed /
DHV-42 RB Sump Iso. to DHP Suction Closed /
DHV-84 Vent Closed / l DHV-82 Drain Closed /
DHV 21 3A DHP Suction Sealed Open /
DHV-20 3A DHP Drain Closed /
DHV-50 3A DHP Suction Test Conn. Open /
DHV-19 3A DHP Vent Closed /
DHV-59 3A DH Disch. Press. Indication Root Vlv Closed /
DHV-16 Vent Closed /
DHV-58 3A DHP Disch. Press. Test Conn. -
Closed /
DHV-57 3A DHHE Press. Test Conn. Closed / l DHV-15 Drain Closed /
DHV-92 Pzr. Spray Root Viv Open /
DHV 102 3A DHP Cyclone Separator Inlet Sealed Open /
NOTE 4 Sealed - 1 %
DHV-104 3A DHP Cvelone Separator Outlet Turns Open /
Sealed ~ 1 %
DHV-103 3A DHP Gland Water Supply NOTE 4 Turns Open /
DHV-110 3A Decay Heat Pump Discharge Valve Auto /3000 /
DHV-51 3A Decay Heat Pump Flow Transmitter Root Valve Open /
DHV-52 3A Decay Heat Pump Flow Transmitter Root Valve Open /
DHV-13 Chemical Sample Root Valve Open /
DHV-122 DHP-1A Suction Cauge Isolation Open /
DHV 123 DHP-1A Suction Cauge Isolation Closed /
DHV 198 DHV-42 Cuard Pipe Drain Open /
NOTE 4: This is a course setting, DHP Cyclone Separator Outlet and Ctand Water Supply valves must be throttled
. while the DHP us running. Refer to Section 4.5 of this procedure.
O O
OP-404 Rev. 98 Page 149
VALVE CHECK LIST lli ENCLOSURE 3 (Pige 3 of 5)
Systeem Decay Heat Removal System Flow Diagram No. FD-302-641 initials Valve No. Description Position Perform / Verify - --
- T Train **
- Decay Heat Pit Area **
l DHV 35 BWST lsolation to Decay Heat System Closed /
l DHV-43 RB Sump Iso. to DHP Suction Closed /
DHV-83 Vent Closed /
DHV-81 Drain Closed /
DHV 32 38 DHP Suction Sealed Open /
DHV-31 3B DHP Drain Closed /
DHV-62 3B DHP Suction Test Conn. Open /
DHV-30 3B DHP Vent Closed /
DHV-29 3B DH Disch. Press. Indication Root Viv Closed /
! DHV-26 Vent Closed /
i DHV-61 3B DHP Disch. Press. Test Conn. Closed /
DHV-60 3B DHHE Press. Test Conn. Closed /
DHV-27 Drain Closed / -
DHV-111 3B DHP Disch. Viv Auto /3000 /
DHV-99 38 DHP Cyclone Separator inlet Sealed Open j NOTE 4 Sealed = 1 % Tums DHV-101 3B DHP Cyclone Separator Outlet Open /
NOTE 4 Sealed = 1 % Tums DHV-100 3B DHP Gland Water Supply Open /
DHV-53 3B Decay Heat Pump Flow Transmitter Root Valve Open /
DHV-54 38 Decay Heat Pump Flow Transmitter Root Valve Open /
DHV-24 Chemical Sample Root Valve ,,
Open /
DHV-124 DHP-1B Suction Cauge isolation Open /
\
DHV-125 DHP-1B Suction Gauge Isolation Closed /
DHV-199 DHV-43 Cuard Pipe Drain Open /
NOTE 4: This is a course setting, DHP Cyclone Separator Outlet and Gland Water Supply valves must be throttled while the DHP is running. Refer to Section 4.5 of this procedure.
l l
r OP-404 Rev. 98 Page 150
VALVE CHECK LIST lli ENCLOSURE 3 (Page 4 of 5) 1
] System: Decay Heat Removal System Flow Diagram No. FD-302-641 Britials 1 Valve No. Description Position Perform / Verify ' *^ !
" Elevation 95' "
DHV-75 Makeup Filter Retum to Decay Heat System Closed / l l
DHV-105 Decay Heat System to Makeup Fi!!c- Scaled / Closed / 1 DHV-11 Decay Heat System to Makeup Pump Suction Closed /
Locked Closed BSV-S7 Demin. Water Flush /
" Elevation 95' "
DHV-76 Makeup Filter Retum to Decay Heat System Closed /
DHV-106 Decay Heat System to Makeup Filter Sealed / Closed /
DHV-12 Decay Heat System to Makeup Pump Suction Closed /
Locked Closed BSV-58 Demin. Water Flush /
" W Train "
" Miscellaneous Areas "
Locked Closed DHV-68 BWST Drain /
l OP-404 Rev. 98 Page 151
-. . . - .. - - - --. . = . . . _ - .
VALVE CHECK LIST lit ENCLOSURE 3 (Page 5 of 5)
System: Decay Heat Removal System Flow Diarram No. FD 302 641 initials ;
Valve No. Description Position Perform / Verify j 1
DHV 18 Reactor Building Spray Recirculation Open / l DHV-46 Spent Fuel Isolation to BWST Open /
DHV-65 BWST Instrument Root Valve Open / l DHV-117 BWST Instrument Root Valve Open /
" Reactor Building Area "
DHV-94 Decay Heat to Pressurizer Spray Drain Closed /
DHV-4 Motor-Operated Iso.-RC System to Decay Heat System NOTE 1 / i Open/ Closed DHV-3 Motor-Operated Iso.-RC System to Decay Heat System NOTE 1 /
Open/ Closed
" 'B" Train "
" Miscellaneous Areas "
DHV-90 Spent Fuel Header Drain Closed /
DHV-89 Vent on Line to SF Cooler Closed /
DHV-97 iso. Viv DH 38-DPT Open /
DHV-98 !so. Viv DH-38-DPT Open /-
DHV-112 Vent on loop "A" to RV Closed /
DHV-113 Vent on loop "B" to RV Closed /
Locked 1/2 DHV-114 Equalization Line Turn Open /
Locked 1/2 DHV-116 Equalization Line Turn Open /
DHV-118 Level Tap Isolation Open /
DHV 119 Level Tap Isolation Open /
l l
l
- NOTE 1: Open if DH Removal is in operation.
O OP-404 Rev. 98 Page 152
__ - .- . ~ . - - . . . - . . . - . . . . ~ . . . . - - - _ ~ . - - . =- . . . ~ _ .
VALVE CHECK LIST IV ENCLOSURE 4 System: 8WST Recirc with Ahernate Suction to D.H. Pumps initials Valve No. Description Position Perform / Verify SFV-10 SF Pump "A" Suction Open /
SFV 11 SF Pump "B" Suction Open /
SFV-14 SF Cask Area isolation Closed /
SFV-21 BWR Pump Suction Isolation Open /
SFV-88 FTC to SF Pump Suction Open /
SFV 9 "B" Pool Outlet Open /
l l SFV-6 BA Pump Closed /
SFV-8 "A" Pool Outlet Open /
I SFV-12 SF BWR Pump Suction Crosstie - Closed /
l SFV-7 SF Pump Suction Crosstie Open /
l ,
/ '
SFV-134 RML-4 Outlet Closed i DHV-39 RC System isolation to Decay Heat Suction Closed /
l DHV-40 RC System Isolation to Decay Heat Suction Closed /
l DHV-110 3A Decay Heat Pump Discharge Valve Auto /3000 /
l DHV-111 38 Decay Heat Pump Discharge Valve Auto /3000 /
'\ ,
DHV 7 Root Valve to Recirculation Header Closed / j DHV-8 Root Valve to Recirculation Header Closed /
DHV-9 Decay Heat Recirculation to BWST Closed /
DHV-34 BWST lsolation to Decav Heat System Closed /
DHV-35 BWST isolation to Decay Heat System Closed /
I
( .
I i
0P-404 Rev. 98 Page 153
ENCLOSURE 5 INSTRUMENT AIR TUBING O INST AIR EnootvAtyc DCV-195 (VEN ocv-is4 (Ain k a
'A' DC SYSTEM DCV-177-MS O instauurst Aia roeis o p INST AIR SnoorvAtyt DCV-197 (VE
- =O DCV-196 (AIR IS /
/P
'B' DC SYSTEM
_ DCV-178-MS O
OP-404 Rev. 98 Page 154
ENCLOSURE 6 0- (Page 1 of 5)
GUIDELINES FOR OPERATING DCV-17 IDCV-181 AND DCV-177 IDCV-1781 MANUALLY NOTE: Prior to performing this enclosure, the preferred Operating Practice is to place the other DH Train in service if available.
NOTE: Instructions in Steps 1, 2, 5 and 6 are duplicated in the field.
Ensure any changes made to these instructions are similarly made to the engraved plaques.
NOTE: Valve pairs DCV-17/DCV-177 are for 'A' train and valve pairs
[DCV-18]/[DCV-178] are for 'B'-train.
- 1. IE operating 'A' DH train, DCV-17
] HEN transfer both DCV-17 and 1. Unseal and rotate hand-DCV-177 from AUTOMATIC to wheel clockwise until MANUAL by performing details 1 contact exists between through 3 for each valve handjack and actuator diaphragm.
Close filter regulator O 2.
3.
supply valve V-3.
Vent air off filter regulator.
/
Initial /Date DCV-177
- 1. Unseal and rotate hand-wheel clockwise until contact exists between handjack and actuator diaphragm.
- 2. Close filter regulator supply valve V-3.
- 3. Vent air off filter regulator.
/
Initial /Date O
OP-404 Rev. 98 Page 155
4 I
1 a
! ENCLOSURE 6 j (Page 2 of 5) ,
j .
3
- 2. IE operating 'B' DH train, DCV-18 IHEN transfer both DCV-18 and 1. Unseal and rotate hand-1 DCV-178 from AUTDMATIC to- wheel clockwise until l_ MANUAL by performing details 1 contact exists between j
through 3 for each valve handjack and actuator diaphragm.
- 2. Close filter regulator 4- supply valve V-3.
- 3. Vent air off filter j regulator.
/
- Initial /Date a
j OCV-178 1- 1. Unseal and rotate hand- ,
I wheel clockwise until i contact exists between 4 handjack and actuator 4
?
- 2. Close filter regulator supply valve V-3.
[O 4
- 3. Vent air off filter regulator.
i- /
Initial /Date i.
i d
iO
- OP-404 Rev. 98 Page 156
ENCLOSVRE 6 (Page 3 of 5)
NOTE: Changes to positioning or throttling of DCV-177, [DCV-178] must always be accompanied by the same changes to DCV-17, [DCV-18] in both direction and magnitude of handwheel rotation.
NOTE: Suspected failures of DCV-17, [DCV-18] and/or DCV-177, [DCV-178] can be cross-checked against :xpected DHHE-1A, [DHHE-1B] outlet temperatures DH-2-TII, [ Ji-2-TI2], DCP-IA, [DCP-1B] discharge pressure, and DC 'A', ['B'] system flow DC-61-FI, [DC-62-FI), local at DCPs.
- 3. Throttle operating DH train DC 1. Manually throttle DCV-177, cooling flow as required to [DCV-178], as required to obtain desire cooling increase or decrease DC cooling flow
- 2. Manually throttle DCV-17,
[DCV-18] the same amount and direction as DCV-177,
[DCV-178]
- 3. Following throttling i adjustments, monitor the l following:
O,' o DHHE-1A,[DHHE-1B]
outlet temperature to ensure SP-422 heatup or cooldown limits are not exceeded o DCHE-1A,[DCHE-1B]
delta RW temperature is maintained < 10*F 1 o Monitor PZR level for decreasing trends; i.e.
Potential RCS overcooling, DH system leaks or lifting reliefs o Monitor DC system flow, DC-61-FI,[DC-62-FI]
and adjust DCV-17,
[DCV-18] as required to !
maintain near constant j flow l
. /
Initial /Date O
a OP-404 Rev. 98 Page 157 m
l-ENCLOSURE 6 (Page 4 of 5) 1
- 4. Establishment of administrative o As required install a blue control over affected valves tag on the handwheel (s) -
should be considered and instrument air supply valve (s) of the appropriate valve (s) o Issue blue tags to NSS o Install required blue tags in accordance with CP-115 l
/
l 1
Initial /Date
- 5. JE it'is desired to return DHHE-1A DCV-17 from MANUAL to AUTOMATTC contru , 1. Close filter regulator IEEN perform details 1 inrougt vent.
for both DCV-177 and DCV-17 2. Open filter regulator supply valve V-3.
- 3. Monitor DHHE-1A outlet ,
temperature during l performance of detail 4. l
- 4. Rotate handwheci to full l l counterclockwise position l and seal. :
/
Initial /Date DCV-177
- 1. _. Close filter regulator i vent.
l 2. Open filter regulator supply valve V-3.
- 3. Monitor DHHE-1A outlet ,
l temperature during
! performance of detail 4.
l 4. Rotate handwheel to full l
counterclockwise position, then rotate in t.he clockwise direction 1-1/4 turns and seal.
- /
c Initial /Date j -
O -,
- l OP-404 Rev. 98 Page 158
l ENCLOSURE 6 (Page 5 of 5) l 6. JE it is desired to return DHHE-1B DCV-18 l
from MANUAL to AUTOMATIC control, 1. Close filter regulator J11M perform details 1 through 4 vent.
for both DCV-178 and DCV-18 2. Open filter regulator supply valve V-3.
l 3. Monitor DHHE-1B outlet
! temperature during performance of detail 4.
- 4. Rotate handwheel to full counterclockwise position and seal .
/
Initial /Date DCV-178
- 1. Close filter regulator vent.
- 2. Open filter regulator
! supply valve V-3.
f
- 3. Monitor DHHE-1B outlet temperature during performance of detail 4.
O 4. Rotate handwheel to full counterclockwise position,
! then rotate in the i clockwise direction 5-3/4 '
turns and seal.
/
Initial /Date i
! i i
l O !
OP-404 Rev. 98 Page 159 (LAST PAGE) t . . --