ML20040F747
| ML20040F747 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 02/05/1982 |
| From: | GENERAL PUBLIC UTILITIES CORP. |
| To: | |
| Shared Package | |
| ML20040F742 | List: |
| References | |
| NUDOCS 8202100257 | |
| Download: ML20040F747 (50) | |
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4-THREE MILE ISLAND NUCLEAR STATION UNIT 2 RECOVERY PROGRAM SYSTEM DESCRIPTION MINI DECAY HEAT REMOVAL SYSTEM 2
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e TABLE OF CONTENTS FOR MINI DECAY EAT REMOVAL SYSTEM Section h
1.0 INTRODUCTION
1 1.1 System Functions 1
1.2 Summary Description of the System 2
1.3 System Design Requirements 4
2.0 DETAILED DESCRIPTION OF SYSTEM 5
2.1 Components 5
2.2 Instruments, Controls, Alarms and 12 Protective Devices 3.0 PRINCIPAL MODES OF OPERATION 15 l
l 3.1 Startup 15 i
3.2 Normal Operation 16 3.3 Shutdown 17 3.4 Special or Infrequent Operation 18 3.5 Emergency 21 1
4.0 HAZARDS Af0 PRECAUTIONS 22 I
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APPENDIX Title Table No.
Pm Mini Decay Heat Removal Pumps 1
23 M.D.H.R. Heat Exchr.ngers 2
25 M.D.H.R. Debris Filter 3
27 MDHR Air Filtration Fans 4
28 MDHR Exhaust H.E.P.A. and Prefilter Assembly 5
29 Instrumentation, Control & Alarms 6
31 TMI-2 Expected Decay Heat Load Vs. Time Figure No. 1 Typical MDFR Pump Characteristic Curve Figure No. 2 (MDH-P-1A,MDH-P-1B)
4 1.D INTRODUCTION 1.1 System Functions The functions of the Mini Decay Heat Removal System (MDR) are as follows:
a.
Remove heat from the reactor coolant system by forced cir-culation through the core.
b.
Provide a method of removing heat from the reactor coolant system during reactor vessel head removal and vessel defueling.
c.
Provide piping connections for future cleanup of the reactor coolant system.
d.
Provide a means of sampling the reactor coolant system utilizing the Mini Decay Heat Removal System.
e.
Provide a means of controlling ambient temperature and airborne radiation levels in the pump and heat exchanger enclosures.
f.
Provide a means of backup pressure control for the Reactor Coolant System.
The Mini Decay Heat Removal System has an interface with the fol-lowing systems:
Alternate Decay Heat Removal System, ADH, (Westinghouse DWG.
a.
WTMI-1019-2).
b.
Temporary Nuclear Sampling System, SNS, (Burns & Roe DWG. M044 &
MD45).
" Temporary" Nuclear Services Closed Cooling Water System, c.
TNSCCW, (Burns & Roe DWG. M041).
i d.
Decay Heat Removal System, DH, (Burns & Roe DWG. 2026).
Heating and Ventilation Fuel Handling Building (Burns & Roe DWG.
e.
2343).
f.
H&V Mini Decay Heat Removal System Fuel Handling Building (Burns
& Roe DWG. M227).
A 1.2 Sununary Description of the System (Refer to Burns & Roe DWGS. MD43 Rev. 9, M041 Rev. 6 and M227 Rev. 0)
When it is desirable to switch from tr:e " loss to ambient" mode of cooling the Reactor Coolant System to forced circulation for decay heat removal, the Mini Decay Heat Removal System may be put into service. The Mini Decay Heat Removal System takes suction from the "B" loop reactor outlet (hotleg) via a connection to the Alternate Decay Heat Removal System (ADH) which connects to the original plant Decay Heat System (DH). After passing through one of the MDHR system's parallel heat exchangers and one of the MDm pumps, the coolant is returned to the reactor through the "B" Core Flooding injection nozzle via a connection to the ADH and DH systems.
Within the Mini Decay Heat Removal System, the reactor coolant first passes through a filter to remove debris potentially accumulated in the Decay Heat Drop Leg. The filter may then be bypassed and can be removed in its lead shielded portable cask or replaced by a back-up filter.
The flow proceeds to the selected heat exchanger (MDH-HX-1A or
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MDH-HX-1B) where the heat is transferred to the shell side cooled by the " Temporary" Nuclear Services Closed Cooling System (TNS).
(The TNS System is supplied by the existing plant Nuclear Service Closed Cooling System via a tie into the "A" Spent Fuel Cooler supply and return lines.)
The discharge from the MDHR heat exchangers combines into a ccmon line and is routed to the selected Mini Decay Heat Removal Pump suction (MDH-P-1A or MDH-P-1B). The suction line contains the Temporary Nuclear Sampling System return sample connection. The E H pumps discharge thru individual check valves and discharge isolation valves before combining into a common header containing a manually operated throttle valve to regulate flow to the reactor cooltat system. This discharge header is provided with a full flow recirculation line and throttling valve running back to the heat exchanger suction to facilitate system testing, startup, and meet the minimum flow requirements during system operation.
Double valved tie-in connections are installed upstream and down-stream of the system's outlet isolation valve (@H-V15) to provide the capability to connect to a future system for RC water clean-up.
Prior to the coolant being returned to the ADH/0H system the flow rate can be measured and an RC water sample can be taken by the Temporary Nuclear Sampling System. Remotely operated valves are provided for flushing, venting and draining of the system to reduce area radiation levels for equipment maintenance.
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s Since two parallel pumps and heat exchangers have been installed in the system for redundancy, either pump can be operated with either heat exchanger. However, pump MDH-P-1B is to be preferentially used as the primary MD m pump because of its superior access for main-tainability. A " cross connect" line located downstream of the "A" heat exchanger but upstream of the "B" heat exchanger allows a series flow arrangement if additional heat removal capacity be required.
Redundant motor operated isolation valves are installed at the Mini Decay Heat Removal System tie-in points to the Alternate Decay Heat Removal System piping. These remote operated isolation valves function to separate the MD m system from the safety grade Decay Heat Remnval System and establish the interface with the RC system pres-sure boundary. The first MDP system outlet isolation valve is provided with jog control capability and will be the normal method of flow control.
Radiation shielding of the MDHR system piping, pumps and heat ex-changers has been provided by either utilizing existing shield walls or the construction of additional walls to minimize the exposure to operating personnel. The MD m heat exchangers are located in the southern most portion of the 280'-6" elevation of the Fuel Handling building and are separated from the Em pumps on the north side by an existing 2' thick shicld wall.
A curb is provided around the perimeter of the MDm heat exchangers to contain any flange leakage and direct it to a floor drain. The MDm pumps are shielded on their north side and between the A & 8 pumps by 2' thick 7'-4" high sels-mically constructed concrete block walls. The pump cubicle is surrounded by 16" thick, 7'-4" high seismic block walls on the east and west sides. An entrance doorway exists on the east wall of the pump enclosure anc' a sheetmetal roof completes the cubicle to form a controlled HVAC environment. The supply and return sample lines from the MDHR pump's discharge and suction connection points to the Temporary Nuclear Sampling System on the 305'-0" elevation of the Fuel Handling Bldg. have continuous shielding installed. This shielding is either in 7.he form of 2" lead brick, 1" lead sheet or 8" solid concrete block to prevent an excessive increase in area radiation levels during the sampling evolution.
Additionally these supply and return sample lines have demineralized water flush connections at the SNS system sample sink to backflush both lines to the MD m system connection points if the area radiation levels should become excessive as a result of repeated sampling.
As mentioned above the MD P pumps are enclosed in a shielded and environmentally controlled cubicle to prevent the spread of airborne contamination should a leak develop at the pump's seals or piping 1 l
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f flanges. The cubicles are ventilated by redundant HEPA f
fan / filtration units with a capacity of 2200 cfm each and are located i
on the 280'-6" elevation of the F.H. Building between the Decay Heat Service Coolers..The fan (s) (>0H-E-1A and 60H-E-18) discharge to the general area.after an_ air flow sample passes through the Particulate, Iodine and noble gas monitor (PING).
-1.3 System Desion Reauirements 1
1.3.1 Overall System Performance Reauirements The Mini Decay Heat Removal System is designed to remove 2.25 x 106 BTU /hr from the Reactor Coolant System using one pump and one heat exchanger. This is sufficient to
. remove the decay heat generated on. August 1, 1979 or any lower heat load thereafter and transfer it to the ultimate heat sink (i.e. river water) via the Nuclear Services Closed Cooling Water and Nuclear Services River Water Systems.
l This heat removal rate is satisfied by a MDFR system flow rate of 120 gpm e 175aF with a T.N.S. system flow of 200 gpm and maximum TNS system temperature of 100*F.'
The MDER system design temperature is 200*F and design pressure is 235 psig.
1.3.2 Applicable Desion Codes and Standards for Pipina and Components.
l Manufacturino Installation Description Code Code Connection to the decay heat ASE-ANSI i
system downstream of DH-V3 Section III B31.7
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up to and including the first Class 2 Class 2
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isolation valve.
Connection to the decay heat ASE-ANSI 1
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system downstream of DH-V3 Section III B31.7 from the first isclation Class 3 Class 2 valve up to and including the second isolation valve.
Connection to the decay heat ASE-ANSI system upstream of DH-V4B up Section III B31.7 to and including the second Class-2 Class 2 isolation valve.
N.S.C.C.W. System Connections:
ANSI B31.1*
ANSI piping up to isolation valve.
B31.1*
k 4-i k
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Isolation valves ASME-ANSI Section III B31.l*
Balance of Piping 2" Piping ANSI B31.1 ANSI B31.1 W/0. B.E. Seismic 4" Piping ANSI B31.1 ANSI B31.1 Heat Exchangers ASE-Section III Class 3 Pumps ASME-Section III Class 3 Filter ASME-Section VIII
- Seismically supported for Category I loadings.
The portion of the system that are ANSI B31.7 Class 2 are seismic Category I.
The remaining portions of the system that convey reactor coolant are designed to Operating Basis Earthquake (OBE) loads. The balance of the system is designed non-seismic except the NSCC tie-in lines up to the isolation valves which shall be Category I seismically supported.
All system process piping and tubing lines are constructed of stain-less steel and the cooling water lines are fabricated using carbon steel.
2.0 DETAILED DESCRIPTION OF SYSTEM 2.1 Components 2.1.1 Mini-Decay Heat Removal Pumps, MDH-P-1A & MDH-P-1B The Mini Decay Heat Removal Pumps (Table 1 and Figure 2) are single-stage centrifugal pumps rated at 120 gpm each with a developed head of 195 ft. The ptsnps are provided with mechanical shaft seals to minimize system leakage of radio-active water. Seal injection is provided from the pump discharge thru a cyclone separator. The separator drain is _ - _ - _ _ _ _ - _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _
routed back to the pump's suction. The mechanical. shaft seals are provided with a demineralized water flush cap-ability between the cyclone separator outlet and the seal inlet. This demineralized water connection will permit flushing of the durametallic seal faces just prior _ to securing the operating pump. The pre-shutdown flushing 4
functions to remove the barated water from the closed loop seal injection system and thus prevents baron from crystalizing on the seal faces. The crystalized boron on the mechanical sealing components could result in seal face damage and subsequent leakage of radioactive water when the pump is restarted. The demineralized water seal supply comes from a local. station quick disconnect via a removable hose. This supplies an isolation valve, flow meter and check valve (located outside the shielded W M pump cubical) before it ties into the outlet of the cyclone separator.
A failed seal's leakage is directed to the pump's base plate where it is drained to the floor drain system. This floor drain system is part of the plant's Radwaste Disposal l
Miscellaneous Liquids system. Consegjently all floor drains in the MD E area empty into the Auxiliary Building sump from which it is pumped into the Miscellaneous Waste Holdup Tank. From this tank, the liquids can be directed to almost any other part of the plant's radwaste liquid system.
Existing traps in the floor drains prevent gases from leaking out of the drain lines and into areas which are not ventilated by the MDHR Pump QJbicle Ventilation sytem.
Airborne radiation monitors will detect gross leakage indicating a seal failure.
The pump's are supplied with a constant level oiler in the bearing frame. Each MDHR pump casing drain plug has been provided with a 1/2" SS pipe nipple and screwed cap. This will pemit " bagged" draining of the pump casing following system flush and pump isolation for subsequent maintenance.
i The pumps have minimum flow protection thru a common re-circulation line back to the heat exchangers suction (i.e.
l Recirculation line Throttle Valve, WH-V20, is always cracked open). The MDHR pumps are located on the 280'6" i
level'of the Fuel Handling Building to assure' adequate NPSH during operation of the system when the reactor vessel head is removed.
The MDHR pumps are interlocked with the existing plant Decay Heat Removal Pumps, DH-P-1A and DH-P-1B, such that the MDH pumps will trip off if either DH pump starts. This prevents the possibility of overpressurizing the MDM system if a decay heat pump is started when a Mini Decay Heat Removal 4
Pump is in operation.
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The power supply to the pump motors, which are non Class 1E, is supplied by redundant Class lE Motor Control Centers and.
will be manually loaded on the Class lE diesels in the event of a loss of off site power. The 15 hp pump motors are not Class lE qualified. EH-P-1A and MDH-P-1B are powered from MCC-2-11EA compt. 3AR and MCC-2-21EA compt. 3AR respec-tively. Control (start /stop/ spring return to normal) and indication for the pumps are on the local panel (EH-PNL-1) in the 280'6" el. of the F.H. Bldg. and the remote panel (MDH-PNL-2) in the Unit II control room.
2.1.2 Heat Exchangers, MDH-HX-1A and MDH-HX-1B The Mini Decay Heat Removal System Heat Exchangers (Table 2) transfer the priri.ary coolant heat to the Temporary Nuclear Services Closed Cooling Water System circulating through the shell side. The Nuclear Services River Water System, in turn, removes the heat from the Nuclear Service Closed Cooling Water heat exchangers and transfers it to the Mechanical Draft Cooling Towers.
The MDHR heat exchangers are of the "U" tube design with Temporary Nuclear Service Closed Cooling Water on the shell side and the reactor coolant on the tube side. The heat exchanger is designed in accordance with the ASME Ccde,Section III, Class 3, 1971 Ed. The tubes have been seal welded into the tube sheet. The heat exchangers are located on the 280'6" elevation of the Fuel Handling Building. The Temporary Nuclear Services Closed Cooling Water inlet isolation valve to the coolers is interlocked to close on a flow imbalance on the shell side of the cooler which would be indicative of a tube rupture or piping leak in the TNS system non-safety piping.
Relief valves are provided to prevent thermal over pres-surization of either the shell or tube side when the MDHR heat exchangers are isolated.
2.1.3 MDHR Inlet Debris Filter, MDH-F-1 The Inlet Debris Filter (Table 3) has been designed to handle the debris that may be in the DH drop line when the l
system is started.
It is a specially designed filter which fits into a lead shielded portable cask. The filter is considered a "one-shot" filter because the elements are not replaceable (however, the filter / cask unit is replaceable).
The unit is constructeu of Type 304 stainless steel with an all welded design having 3" inlet / outlet flanges and 1/2" vent / drain connectors. Additionally the inlet and outlet pipe stubs on the filter unit are provided with 1/2" tubing, o
valve and quick disconnect. These are located external to the cask and permit draining the irilet/ outlet connections below the flange connections prior to filter removal or replacement.
It is a pressure vesst1 designed in accordance with the ASME BPVC Sect. VIII Div. 1 requirements. The unit is located in the F.H. Bldg. on the 280'6" elevation within the shield cask. This cask has an exterior shell consisting of a pipe spool 28" 0.D. with top and bottom plates all constructed of carbon steel. Four casters welded to the bottom plate provide mobility for filter change out and will facilitate easy removal from its installed location.
Internal lead shielding of the cask consists of 2" top and bottom with 3' on the vertical cylinder portion. After the "one-shot" usage of the illter it will be isolated, by-passed, and properly disposed of.
If additional filtration is required, the depleted filter will be replaced with a duplicate unit.
2.1.4 MDHR Air Filtration Fans (@H-EIA & MDH-E18) and Pre-Filter /H.E.P.A. Filter Enclosures (CH-F-1A/2A &
MDH-F-1B/2B)
These redundant MDHR air filtration units (see Table 4 for fans and Table 5 for filters) function to exhaust air from the cubicals, filter the air, and transfers the air to the general area. This maintains acceptable temperatures in the cubicles, limits the buildup of contamination in the cubicles to permit maintenance, and minimizes the spreading of contamination. The existing F.H. Building air supply duct discharges 2900 cfm to the MD R heat exchanger room where 900 cfm is drawn from the room into the Reactor Building Chase and 2000 is directed to the PO m Pump Cubicle.
The operating MDHR fan will exhaust 2200 cfm from the pump cubicle. Two thousand cfm is transferred from the heat exchange room and 200 cfm infiltrates from the general area for the total of 2200 cfm. This flow passes thru a common inlet balancing damper (D-109) and the motor operated damper upstream the operating filtration unit. The air then flows through the filtration unit. Each filtration unit contains two filter housings in parallel, each containing a pre-filter and HEPA filter. The flow proceeds thru the fan and out the motor operated discharge damper where it combines into a common discharge from the idle fan / filtration unit. The air is then exhausted to the general area at elevation 280'-6" after the flow is measured / alarmed and an airborne radiation sample is con-tinuously monitored. _
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Each filtration unit is furnished with a differential pressure indication switch with a high d/p alarm. The fans (MDH-E-1A/lB) are controlled from local control switches on EH-PNL-1 and are interlocked to open their respective motor operated supply and discharge dampers when the unit is started. Power for the fans is supplied by MCC 11EA compt. 2ARR for MDH-E-1A and MCC 21EA compt. 2ARR for MDH-E-18.
2.1.5 Major System Valves Mini Decay Heat Removal Suction Header Isolation Valves, MDH-V1 and MDH-V2 Two 600 psig (ANSI Rating), 2 inch stainless steel, electric motor operated globe valves in series are provided in the inlet suction header to the MDHR system. These valves provide redundant isolation capability from the tie-in to the ADHR system and DH system. Both valves are clcsed except when the Mini-Decay Heat Removal System is in operation. The electrical power to the valve motors is supplied from the redundant Class IE buses. MDH-V1 receives its power from MCC-2-llEA compt. 2BF and is controlled from panel BA in the control room (formerly used to control DC-Vil4). MDH-V2 receives its power from MCC-2-21EA compt.
88R and is controlled from panel 15 in the control room (formerly used to control WDL-V271).
Mini Decay Heat Removal Discharge Header Isolation Valves, MDH-V18 and MDH-Vl9 Two 1500 psig (ANSI Rating), 2 inch stainless steel, electric motor operated globe valves in series are provided in the discharge header of the MDHR system tie-in to the ADHR system. These valves provide redundant isolation capability from the DH system and primary system boun-daries. Both valves are closed except when the Mini-Decay Heat Removal system is required to operate. The existing plant Class IE buses provided redundant power to the valve's motor operators. MDH-Vl9 receives its power from MCC-2-11EA compt. 30F and is controlled from panel 15 in the control room (formerly used to control WDL-Vll26). MDH-V10 receives its power from MCC-2 -21EA compt. 7BF and is controlled from panel 8A in the control room (formerly used to control DC-Vll5). MDH-V18 has the capability of jog control if it is deemed necessary to throttle MDHR system outlet flow from the control room. -.
1 Nuclear Services Closed C'. _na Water Supply-Isolation Valve to Temporary NSCCW, TNS-V u)
One 350 psig, 300oF, 4 inch, stainless steel, electric motor operated gate valve "
nstalled in the NSCCW supply line upstream of the Mii._ oecay Heat Removal Heat Exchangers (Retagged from BS-V4A which was spared). This valve provides the system boundary change from Seismic I, SC piping to Seismic II. conventional piping. The valve motor operator has been provided with a Class lE power stoply from MCC-2-21EA, compt. 6BF and is manually controlled from panel 8A in the Control Room (formerly used to control DC-V103).
Additionally the valve is interlocked to close and isolate the NSCCW supply to the MDHR heat exchangers if the outlet flow exceeds the inlet flow t the heat exchangers or visa versa. The purpose of this is to prevent the spread of contamination to the NSCCW system in the event of a tube rupture in the MDHR heat exchangers or isolate the coolers if a piping leak occurs in the TNS system (i.e. isolates the safety portion of the NSCC from the non-safety TNS piping).
The valve's nuclear classification is N-3, quality level Q-3, Seismic I, and Cleanliness class D.
MDHR System Remote Flushina, Drainina and Vent Valves:
MDH-V21, MDH-V22, MDH-V29, MDH-V30, MDH-V32, W H-V34, WH-V35, and MDH-V36. The primary side of the MDH system has been designed with the capability for remote isolation, draining, flushing and venting to minimize radiation ex-posure to maintenance personnel. Eight 235 psig, 200oF, 2 inch, stainless steel, air operated Tufline plug valves, which fail close on loss of air or electric power, have been incorporated into the system to accomplish this. All the valves have their key lock control switches and indication on the local control panel, MDH-PNL-1, located on the 280'6" elevation of the Fuel Handling Building. The valves are classified conventional, quality level Q-3, Seismic I, and cleanl* ness class C. Valves MDH-V21 and >0H-V34 are the demineralized water flush supply valves for system flushing and debris filter flushing respectively. Check valves are located downstream of the above valves immediately adjacent to the MD m system to prevent contamination of the D.W.
system. Additionally, quick disconnects upstream of the remote flush valve are only installed when required for flushing.
Valves MDH-V30 and MDH-V35 located upstream of the debris filter (MDH-F-1) and valves MDH-V36 and MDH-V29 located downstream of the filters provide the capability to isolate the filter from the system and flush the connections to the floor drains before removal.
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mm system remote venting is facilitated by opening MDH-V32 remotely during system draining. The Air & Gas Vent, M)H-U-1, located downstream of MDH-V32 prevents overflowing the MDHR system. Valve MDH-V32 will be opened when the system is to be refilled to ensure a solid system.
The solenoids for the above eight valves and M)H-V28 receive their power from Misc. Power Panel MPF-1 supplied from MCC 2-32A, compt. 9 ARF thru a 30 KVA transformer.
Debris Filter Bypass Valve, MDH-V28 A remote operated 235 psig, 2000F, 2 inch, stainless steel, air operated Tufline plug valve, which fails open on loss of air or electric power, is provided as a bypass around the inlet debris filter (MDH-F-1). The valve has its keylock control switch and indicating lights on the local control panel, MDH-PNL-1, and is opened when flow thru the Inlet Debris Filter is no longer required. MDH-V28 is a con-ventional valve, quality level Q-3, Seismic I, and cleanliness class C.
Relief Valves Relief valves are installed where necessary to protect the system's heat exchangers and piping from overpres-surization. The shell side of the MDW Heat Exchangers, MDH-HX-1A and MDH-HX-18, have Crosby 3/4" x 1" relief valves installed (TNS-V1002 and TNS-V1008). These relief valves have setpoints of 150 psig at 2000F with a capacity rating of 12 gpm. The tube side of MDH-HX-1A and IB, have Vapor Corp. 3/4" x 1" relief valves installed (MDH-V4A and M)H-V48). These reliefs have setpoints of 235 psig with a capacity rating of 53.5 gpm.
The MDH pumps, MDH-P-1A and 1B, each have Vapor Corp. 3/4" x 1" relief valves (MDH-V8A and MDH-V88) installed on the pump's discharge. The reliefs have a setpoint of 235 psig with a discharge capacity of 53.5 gpm.
Manual Operated Valves With Extension Handwheels The MDHR Hest Exchangers shell side (TNS) cooling water supaly and return line isolation valves (4" gates) are prorided with extension handwheels that penetrate an existing 2' thick shield wall on the H.X. North side.
I MDH-HX-1A and 1B have their inlet valve handwheels (TNS-V1004 & TNS-V1006) located in the vicinity of the shielded debris filter (H)H-F-1). The outlet valve hand-wheels (TNS-V1001 and TNS-V1003) are located within the MDP I l l
l
s e
pumps cubicle enclosure and the manipulation will require the operating pump to be shutdown and the primary side lines flushed before the valves can be operated.
The primary side of the MDHR Heat Exchangers is provided with 2" diaphragm valves operated with remote handwheels on the inlet, outlet and cross connect valves.
Inlet valves MDH-V-3A and 38 and outlet valves MDH-V-6A and 68 have their extension handwheels located in the pump cubicle. MDm crossconnect valve, MDH-V5, also has it's remote handwheel located in the pump cubicle. Operation of these valves MDH-V3A/38, MDH-VS, and MDH-V6A/6B will require the system to be shutdown and the primary lines flushed to reduce radiation levels before entrance to the MDHR pump cubicle.
WHR Pump Suction and Discharge 2" diaphragm valves, MDH-V7A/B and MDH-V12A/B respectively, have their remote handwheels located on the 2' thick north shield wall of the pump cubicle for pump isolation should a flange or seal leak occur. The MDHR system's minimum recirculation throttling valve, MDH-V20, and outlet isolation valve, WH-V15, are 2" globe type with their extension handwheels located on the north shield wall of the pump cubicle.
The manual remote valve associated with the MDHR system remote draining is MDH-V33, which functions to drain the entire system. This 1" plug valve has its extension hand-wheel located on the pump cubicle's 2' thick north shield wall at the eastern corner.
2.2 Instrumentation, Controls, Alarms and Protective Devices As indicated on Table 6, the Mini Decay Heat Removal System is l
largely controlled from the local (MDH-PNL-1) and remote (lOH-PNL-2) panels located on the 280'6" el. of the F.H. Bldg. and the Control Room respectively. System isolation capability of both the primary coolant side and NSCCW side have their controls on C.R. panels 8A and
- 15. These isolation valves (MDH-V1, MDH-V2, MDH-V18, MDH-Vl9 and TNS-V1007) are powered from Class lE Motor Control Centers using existing starter circuits spared as a result of system in-operability. The valves previously powered by the MCC starters will not be required to operate until their respective systems are repaired during the recovery operation (i.e. WDL-V0271, WDL-Vll26, DC-V103, DC-V114, DC-V115).
Controls for valves used during remote flushing, venting and draining operations are located on the local control panel, MDH-PNL-1, in the F.H. Bldg. 280'6" elevation..
s Multi-function process monitors on the local and remote panels are used to display pressure, temperature and flowrate.
MDH-P-1A/8 have on/off/ spring return to normal switches on the local and remote panels. Suction and discharge pressure indications for each pump are available on the local instrument rack and on the process monitors. The pumps are interlocked with the main decay heat pumps to trip if DH-P-1A or B is inadvertently started.
The heat exchanger's primary side instrumentation consists of inlet and outlet temperatures and is displayed at the process monitors.
.High individual heat exchanger outlet temperature is also alarmed in each process monitor. Local inlet pressure to each heat exchanger is available on the local instrument rack.
Primary side system flow rate readout is available on both process monitors with low flow being alarmed.
The heat exchanger's secondary side instrumentation consists of inlet and outlet flow indication on the local and remote panels.
The flow differences are used to signal the automatic closing of TNS-V1007 (i.e. nutlet flow greater than inlet flow or visa versa) and alarm the condition on the local and remote panels.
Three area gamma radiation monitors are provided on the 280'6" elevstion of the Fuel Handling Building. They are located in the vicinity of MDH-P-1A, MDH-P-1B, and the MDH heat exchangers. Each one has indication adjacent to the local panel and on the remote panel with a common alarm annunciator on each panel.
The controls and indication associated with the MDHR air filtration system are located at the equipment or on the local control panel, i
MDH-PNL-1. MDH-E-1A/1B have on/off control switches on the local panel with interlocks to their respective suction and discharge motor operated dampers to open them when the fan is running. The prefilter and HEPA filter assemblies are provided with local differential pressure indication, a local high alarm and a common high d/p alarm l
on the remote panel. Exhaust air flow from the fans is indicated / alarmed locally with a low flow alarm on the remote panel.
Additionally an airborne radiation monitor samples the air after the filters to alarm an abnormal condition locally and remotely. Valving is provided to allow an air sample to be taken before the filters.
l A closed circuit TV system is provided to aid in system surveillance l
during operation such as monitoring the system for fluid leakage; pump seal failure; relief valve lifting or system flushing and l
draining to floor drains. The system consists of two TV cameras strategically located in the MDHR pump enclosure and heat exchanger i
room.
The TV monitors and necessary controls are mounted on separate racks in the Cable Room at the 305'0" elevation of the control I.
building. Camera MDH-TVC-1 is mounted on the south wall of the MDHR pump enclosure, opposite the centerline of the shield wall dividing the pumps and is approximately 4 feet off the floor.
It is provided with a PAN-Tilt mechanism to allow remote movement of the camera to permit scanning both pump's areas. Additionally the camera is fitted with a 30-150 mm zoom lens with remote focusing to facilitate detailed inspection of the pump components and piping. The camera is normally left pointed away from any direct line view of a radiation source. This will lengthen the life of the lense.
Camera MDH-TVC-2 is mounted on an I-beam near column AF & A67, approximately 7 feet above the floor facing east towards the MDHR heat exchangers to view relief valve sight glasses / valve positions.
It is provided with the same remote control features as MDH-TVC-1.
Each pump cubicle is provided with 4-100 watt incandescent lamps and the heat exchange rooms existing plant lighting has been augmented by three additional flourescent fixtures having 3-40 watt lanps to insure adequate lighting for the TV cameras. All lighting fixtures in these areas were lamped or relamped with the longest life bulbs / tubes available to lengthen or eliminate relamping requirements since these areas will be inaccessible during normal operation.
The Mini-Decay Heat Removal Pumps, MDH-P-1A & 1B, are provided with a "Vibralarm" vibration monitoring system to continuously monitor the pump's bearing housings for impending failure so that corrective action can be taken. Each pump has two single axis accelerometer sensors attached to the bearing housing to sense vibration in the vertical radial and horizontal radial direction (see Table 6 for details). The acceleration levels measured by the sensors are transmitted to the locally mounted Vibralarm Monitors near MDH-PNL-1 and are converted to velocity levels in inches /sec. One monitor for each pump indicates " alarm" and " shutdown" levels for each sensor via white and red indicator lights on the face of the panel. Also an amber iridicating light is provided on the face of the panel to alarm: sensor, cable or input electronics failure. Internal to each monitor panel are the calibration controls and a velocity level indicating meter which can be selected to read channel 1 or 2 (i.e.
vertical or horizontal sensor). These local monitors are tied to the control room panel, MDH-PNL-2, via a common trouble alarm which will annunciate if any of the local alarms actuate, i
The Mini-Decay Heat Removal Filter (@H-F-1) is provided with dif-ferential pressure indication and high d/p alarm on the local panel (MDH-PNL-1) while the control room panel (WH-PNL-2) is provided with a high d/p alarm only. This ind rumentation will provide guidance as to when to bypass the filter or replace it.
l l
3.0 PRINCIPAL MODES OF OPERATION 3.1 Startup
~
When it is desirable to switch cooling modes of the R.C.S from any given mode to forced circulation using the Mini Decay Heat Removal:
System, the following will be performed. Ons of the MDE pump enclosure fan / filter units will be started to exhaust the air around the pumps thru HEPA filters. The operation of the fan / filter unit is 5
required to minimize the potential spread of airborne contamination a
into the balance of the F.H. Building should a leak, develop in the MDH system. The Fuel Handling Building H&V system should be operating prior to starting the system.
i The MD E system primary side will be filled and vented with borated water at a 3500 ppm Boron concentration. Nuclear Services Closed Cooling Water flow is established on the secondary side of the MDE heat exchanger selected for service via the Temporary Nuclear i
Services Closed Cooling Water Subsystem tie-in to the "A" Spent Fuel Cooler (i.e. SP-C-1A is no longer operable). The "B" heat exchanger will normally be selected as the lead cooler with MDH-HX-1A isolated on the shell and tube sided by closed outlet valves. A minimum flowrate of 50 gpm will be set by throttling NS-V31A. The flowrate is not to exceed 245 gpm to prevent starving other corrponents in the NSCCW system.
A valve line-up of the MDHR primary side will have the inlet and outlet remote isolation valves (MDH-V1, 2,.18, & 19) closed. The flow path will be arranged for flow thru the debris filter (>0H-F-1)
I with the bypass valve closed (MDH-V28). Heat Exchanger."A" will be isolated by its closed outlet valve (60H-V6A) and the HX cross connect valve (MDH-V5) is closed to direct flow to the perferred "B" side heat exchanger. Similarily the "A" side MD m pump is isolated by closed suction and discharge valves (MDH-V7A & 12A) to allow the "B" side MDE pump to operate as the lead pump..The MDE pumps minimum recirculation valve (MDH-V20) will be opened 1 full turn to allow a 10-15 gpm flow at shutoff head of the MDW pump.
l The Decay Heat Removal System will be aligned to interface with the 60HR system by verifying open DH-V2 and then opening DH-V1 (or DH-V171), DH-V3 and DH-V48. The MDHR system suction isolation valves (MDH-V1 & 2) are opened to pressurize the system to Reactor Coolant System pressure which will result in a static pressure at the "B" pump's suction of approximately 100 + 10 psig as indicated by MDH-PI-28-2 or -3.
If this static pressure. exceeds 115 psi the MDHR system will be manually isolated by closing MDH-V1 & 2 and the RCS pressure decreased by increasing the letdown or RCS leakage.
The preferred MD m pump (>0H-P-1B) will be started from the local (MDH-PNL-1) or remote (MDH-PM.-2) control panel and initial data will be taken to confirm proper opere' 5n while it is in the recirculation
, l
~
mode via POH-V20. MDER system outlet isolation valve 60H-V19, will 3
be opened and POH-V18 jogged open gradually till 100 gpm is indicated on the system outlet flow meter (MDH-FIAL 2 or 1-1).
During system startup the radiation levels on contact with the MDm filter shield cask will be measured immediately and regularly there-after to determine contact radiation levels. From then on contact.
readings will be taken periodically to identify.trer.ds in the buildup i
of contact radiation levels. The criteria for changeout of the MDm filter cask assembly is based on an administrative radiological limit of 1 rem /hr. on contact with the cask and/or a differential pressure across the filter in excess of 65 psig above the cican filter d/p.
Refer to section 3.4.2 for details on debris filter replacement.
3.2 Normal-Operation The DO m system presents a forced flow option for core cooling.
If the. system is put into operation it may remain.in service until complete defueling of. the reactor core has taken place. Normal system fluid parameters may be monitored along with the area radiation levels in the 280'6" elevation of the F.H. Bldg. As decay heat generation rate is reduced with time, reactor coolant system temperature will slowly trend toward the TNSCCW temperature. Heat j
removal rate can be reduced to control-the RCS cool down rate by throttling the TNSCCW flow with the "A" Spent Fuel Cooler outlet valve, NS-V31A. The primary coolant outlet temperature to the MDE heat exchanger shall be maintained above 1000F. The Standby Reactor Coolant Pressure Control System (SPC) will be controlling the MD E system pressure.
If it becomes necessary to shift operating pumps, i
the standby pump will be placed in service prior to securing the operating pump. The operating pump's mechanical seal must be flushed with demineralized water prior to securing it per the' method of 4
section 3.4.5.
>OH-P-1B is considered to be the normal operating pump because of its superior access for maintenance. Pump 60H-P-1A wi'.1 be used only as a temporary backup while maintenance is per-formed on the IB pump. Heat Exchanger swapping will require shutting down the system, and flushing to reduce radiation levels to gain access to the H.X. isolation valves.
4 During the normal system operation, reactor coolant is taken from the "B" side 36" reactor outlet line through a 12" line with two high pressure electric motor operated valves in series, DH-V1 and DH-V2.
The flaw exits the Reactor Building through penetration R-525 and-immediately passes through an electric motor operated valve, DH-V3.
The 8" Westinghouse Alternate Decay Heat Removal System tie-in is located directly downstream of DH-V3. This tie-in is isolated by two Westinghouse electric motor operated valves ~ADH-V01 and ADH-V02 before the line terminates in the valve pit outside the west wall _of the Unit 2 Fuel Handling Building. A 2" line connects to the-8" 4
.m.--c r--
s Westinghouse ADH system line downstream of DH-V3 to serve as the suction line for the MDm system. Two electric motor operated isolation valves in series (MDH-V1 and MDH-V2) are installed in the 2" line upstream of the demineralized water flush connection and inlet debris filter (MDH-F-1) with bypass valve (MDH-V28). The line then connects to the suction header of the parallel MDH heat ex-changers which are provided with inlet and outlet diaphragm valves with extension handwheels. A 2" heat exchanger cross connection line exists downstream of MDH-HX-1A but upstream of MDH-HX-1B to allow them to be operated in series. The 2" discharge lines from the HX outlets combine into a common header and are routed to the parallel 10m pumps. @ stream of the pumps the sample return line ties in from the Tempca ry Nuclear Sampling System.
Each MDH pump is provided with suction and discharge manual diaphragm valves with remote handwheels and a discharge check valve to prevent reverse flow in the nonoperating pump. The pumps discharge into either a full flow recirculation line or the system's outlet isolation valve, MDH-V15, before proceeding to the system's electric motor operated outlet isolation valves, MDH-V18 and MDH-Vl9. MDH-V18 has been provided with jog control capability from the control room and will be the normal method of throttling MDHR system outlet flow.
(Note: MDH-V15 and MDH-V20 have handwheel extensions for remote adjustment of flow.) Upstream of MDH-V18 & MDH-Vl9 are located the system's remote drain valves, sampling system supply line, and system flow element. Upstream and downstream of the system outlet isolation (MDH-V15) are located tie-in connections with double isolation valves for a future demineralization system. The 2" system discharge line connects to the 6" B return loop of the Westinghouse ADm. The 6" line is isolated on the deadend side by ADH-V078 and ADH-V06B and connects into the 10" Decay Heat line upstream of DH-V-48.
Down-stream of DH-V-4B the line penetrates the Reactor Building where it joins with the B side 14" Core Flooding line to the Reactor Vessel, completing the flow path.
3.3 Shutdown l
The MDHR system is removed from service by closing the NSCCW supply to SF-C-1A via NS-V30A and closing the operating MDHR H.X. outlet valve (TNS-V1006 for B or TNS-V1004 for A). Primary side outlet valves MDH-V18 and MDH-Vl9 are closed from the control room. The l
operating MDW pump (usually MDH-P-18) will be tripped after the mechanical seals are flushed with demineralizer water per section 3.4.5.
Inlet and Outlet isolation valves for the pump will be closed (MDH-V7B/12B or MDH-V7A/12A) along with the primary side inlet valves W H-V1 and V2. The "A" Spent Fuel Cooler outlet valve (NS-V31A) is closed.
If shutdown has occurred for maintenance purposes then refer to section 3.4.1 on Remote Flushing, Draining & Venting. -
s 3.4 Special or Infreauent Operation 3.4.1 Flushing, Draining & Ventina the System Remotely to Reduce Radiation Levels for Maintenance Should it be required, for any reason, to enter tre MDm heat exchange room anc'/ar pump cubicle it may be necessary to shut down the system and drain / flush it to reduce the area radiation levels to an acceptable level. This evolution will consist of shutting down the MDm System as described in Section 3.3.
The system's following in-line process valves will be verified open or opened:
inlet / outlet / bypass valves for MDH-F-1 (i.e. MDH-V30/-35/-
-36/-29/-28 from MDH-PNL-1), suction / discharge valves for MDH-P-1A/B (i.e. MDH-V7A/-7B/-12A/-128 from extension handwheels on pump cubicle's north shield wall), and MDm system recirculation / discharge valves (i.e. MDH-V20/-15 from extension handwheels on pump cubicle's north shield wall).
It is not feasible to open the primary side flow paths for both heat exchangers because of ALARA considerations (i.e.
HX inlet / outlet / bypass valve extension handwheels are located in the MDHR pump cubicle).
The system is vented by opening vent valve MDH-V32 from local panel MDH-PNL-1. System drain valve MDH-V33 is opened only enough to prevent overflowing the floor drain using its manual remote handwheel. Filter inlet / outlet drains MDH-V47/48 are also partially opened. When draining is completed as determined by the TV monitor observing the MDH-P-1B pump cubical's northeast corner, where the floor drain is located, the above three drain valves are closed.
If the area radiation levels in the MDHR pump cubicles decrease sufficiently, the H.X. isolation / bypass valves (MDH-V3A/6A/5) should be opened prior to securing draining.
The system is refilled with demineralized water by instal-ling the demineralized water quick disconnect hose at l
DW-V238 and opening DW-V238. The demineralized water supply valve, MDH-V21, is opened from panel MDH-PNL-1 and filling proceeds until air ceases flowing from the Air & Gas Vent (MDH-U-1) downstream of MDH-V32. WH-V32 & WH-V28 are closed from panel WH-PNL-1 and the system flushing valve, MDH-V22, is opened from panel MDH-PNL-1. Demineralized Water flushing of the system will commence and run for 5 l
minutes and~be monitored by observing the drain in the l
southwest area of the heat exchanger room with the T.V.
l monitor. The inlet / outlet valves for W H-F-1 ( W H-V30/29) are closed and the bypass valve opened (MDH-V28) to allow a l
l l
t l
a.._ _ _
~____
g new flush path for 5 minutes. Flushing will be secured by closing MDH-V21, V22 and DW-V238 (disconnecting supply hose). The system vent isolation valve (MDH-V32) and drain valve ( m H-V33) are reopened to allow complete draindown.
The system will be restored to startup status after main-tenance by performing the MDFR primary side valve line-up the refilling with 3500 ppm borated water using a cortable mix and fill apparatus.
3.4.2 Debris Filter Replacement After initial operation of the MDFR system with the inlet debris filter, MDH-F-1, in service it may become necessary to install the backup filter due to a high pressure drop and/or contact radiation levels on cask exceeding 1 rem /hr.
Installation and operation with the backup filter which results in very little increase in d/p will indicate that debris from the Decay Heat Drop Line has been removed prior to bypassing the filter.
For MDH-F-1 replacement the MDFR system must be shutdown as detailed in Section 3.7.
The filter's inlet and outlet isolation valves (MDH-V35 and MDH-V36) are closed from panel MDH-PNL-1. MDH-DPS-35 root valvos (MDH-V43 & -V44) are closed and vent valves (@H-V45 & 46) are opened locally.
Hoses will be connected to the quick disconnect fittings located downstream of MDH-V47 & MDH-V48 and connected to a container with an absolute filter vent. The inlet / outlet filter drains (MDH-V47/48) are opened to allow the liquid between the filter isolation valves to drain down to below the flange disconnect elevation. When the filter inlet and outlet lines have stopped draining, valves MDH-VAS, -V46,
-V47 and -V48 are closed and drain hoses removed.
The filter's inlet and outlet flanges can rapidly be discon-nected, since the flange nuts are tack welded to the under-t side of the disconnect flanges. All flanges will be bagged to contain any dripping of radioactive liquid and the filter cask housing pulled out of its installed location. The j
flanges on the spent filter should be blind-flanged and suitable gaskets installed / torqued before any extensive i
movement of the filter cask. A new filter cask houcing will be reinstalled and the flange connections leak tested prior to putting the MDHR system back in service.
l l
l 0
3.4.3 Reactor Coolant System Water
)
Plaming for RCS Cleanup recognizes the MDm Pipe Stubs as potential intercept points for interfacing with the RCS.
Use of the stubs will'be evaluated along with other i
potential RCS Cleanup options.
3.4.4 M Pump /Pipina Enclosure HVAC HEPA Filter Replacement HEPA filter replacement will be required when a high dif-l fu antial pressure is indicated across the prefilter/HEPA filter or the outlet airborne radiation monitor idicates the filters are not performing effectively. The standby fan /fitration unit (mH-E-1A or EH-E-1B) will be started from panel MDH-PNL-1 and the operating unit stopped. Remove and replace both sets of prefilters and HEPA filters from the secured unit. The filtration unit can serve as a backup
~
unit after DOP testing is performed and completed, i
3.4.5 MD M Pump Mechanical Seal Flushina i
When an operating MDW pump must be secured it is imperative the seals be flushed with demineralizeo water before it is isolated. This operation will consist of connecting the demineralized water quick discomect downstream of DW-V238 and opening the valve. The operating pump [MDH-P1B (A)]
should be tripped and its suction and discharge isolation valves [MDH-V78 (A) and MDH-V12B(A)] verified open. Also verify MDH-V20 is in " Minimum Recirc" position and close the system isolation valves (WH-V1, 2, 18 and 19). The system drain valve (MDH-V33) should be cracked open till suction pressure at the tripped pump decreases to less than 40 psig, then close MDH-V33. The demineralized water supply valve
[MDH-V41B (A)] is opened for the M pump which has been tripped. Restart the tripped pump [MDH-P1B (A)] and throttle open MDH-V33 until a flow of demineralized water of 1.5 to 2.5 gpm is seen on flow meter MDH-FI-7(6). After running the pump for 10 minutes, trip the pump and close MDH-V33. The demineralized water will have flushed out the borated water from the pump's seal block and the closed loop 4
cyclone separator back to the process piping. Close D.W.
supply valve MDH-V41B(A) when flow is no longu seen on EH-FI-7(6). Close the tripped pump's suction / discharge isolation valves [MDH-V7B(A)/MDH-V12B(A)]..
_ __ ~,
d 3.5 Emergency 3.5.1 Loss of Off-Site Power In the event of loss of off-site power, the MDm pump in operation will stop and the four system isolation valves will remain in their last position, but not energized. The air operated plug valves associated with the system's remote flushing, draining and venting (mH-V34, MDH-V21, MDH-V30, MDH-V35, MDH-V36, WH-V29, MDH-V32, MDH-V22) will fail closed on both loss of electrical power and air, which will stop the operation in progress, The filter bypass valve (MDH-V28) fails open on loss of electrical power / air to ensure a flow path is maintained through the MD P system.
The MDm HVAC Filter Unit in operation will also stop.
Instrumentation indication will be lost. Once the site Class 1E diesel generator sets are in operation the above loads will be sequenced on the 1E diesel generators manually to restore system operation and isolation capability.
3.5.2 Inadvertent Startina of Existina Plant Decay Heat Removal Pumps, DH-P-1A/or 1B If either of the existing plant decay heat pumps, DH-P-1A or 1B, are inadvertently started, the operating MDHR pump will automatically trip to prevent overpressurizing the MDHR system. The DH pump should be secured and the desired MDHR pump restarted to restore system operation.
3.5.3 Loss of MDM Pump (s) Cubicle Ventilation If the operating HEPA fan / filter unit trips or becomes fouled the potential exists to spread airborne contamination into portions of the Fuel Handling Building not occupied by the MDHR system. The backup HEPA fan / filter unit should be immediately started to ventilate the MDm Pump / Piping Enclosure so a negative pressure is maintained and any particulate airborne contamination is filtered.
3.5.4 Mini Decay Heat Removal Tube Failure If a primary side tube failure occurs on the operating MDH heat exchanger, MDH-HX-1A or 1B, the inlet TNSCCW supply valve (TNS-V1007) will close due to the flow inbalance on the shell side.
If operation must continue the affected cooler should be isolated and the backup cooler put into service. This will require system shutdown so the system can be flushed to reduce radiation levels and gain access to the heat exchanger isolation valves.
l l
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3.5.5 Gross System Leakage In the event of gross system leakage, the system can be isolated from the RCS by shutting the remote operated isolation valves (@H-V1, MDH-V2, MDH-V18, and MDH-Vl9).
4.0 HAZARDS AND PRECAUTIONS 4.1 Do not operate the Mini Decay Heat Removal pumps with the minimum recirculation valve, MDH-V20, closed.
If the discharge path is blocked, shutoff head operation of the pump (s) should not exceed one minute.
4.2 Do not operate the pumps with the suction valves (s) throttled or closed.
4.3 Since the system is handling radioactive contaminated fluids and potential airborne contamination due to leakage, all appropriate health physics safety precautions must be observea during operation and maintenance.
4.4 Remote flushing capability exists for the system's primary side piping to provide a means for reducing the radiation levels in the piping. Flushing shall be performed before maintenance is begun.
4.5 Unless required for operation, a standby component (i.e. pump / heat exchanger / instrumentation) should be isolated by their outlet and/or inlet isolation valves or root valves to eliminate potential leakage paths and/or crud traps.
4.6 The Fuel Handling Building Heating and Ventilation System should be operated in conjunction with the MDHR exhaust system when the MDIE System is operating.
4.7 Pump MDH-P-1B should always be considered the " PRIMARY" pump because of the ease of maintainability versus MDH-P-1A.
TABLE 1 MINI DECAY HEAT REMOVAL PUWS Identification MDH-P-1A, MDH-P-1B Number Installed Two Manufacturer Goulds Pumps, Inc.
Model No.
3196 ST (1 x l-1/2-8)
Type Single-Stage, Horizontal Shaft, Centrifigal Rated Speed, rpm 3500 Rated Capacity, gpm 120 Developed Head, ft.
195 Design Pressure, Casing, psig 240 Design Temperature, 0F 200 Lubricant / Coolant 011/ Air Min. Flow Requirements 10 gpm for 15 minutes max.
Motor Details Manufacturer Westinghouse Type Squirrel. Cage Enclosure Open Drip Proof Rated Horepower, HP 15 Speed, rpm 3500 Lubricant / Coolant Grease / Air Power Requirements 460V, 3 Phase, 60 Hz, 18.5 amps (full load)
Power Source MDH-P-1A, MCC-2-llEA compt.
3AR MDH-P-18, MCC-2-21EA compt.
3AR.
. :. = : = a.:. _ _ _.:. -.......-....~.- -
TABLE 1 (Con't.)
MINI DECAY HEAT REMOVAL PLMPS Classification ASME-Section III Class 3 Code ChJality Control 3
Seismic I
Cleanliness B
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f i
l f
f i
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)
L i I
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I i
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~- ---- ---
z--. =..a. -.-.~.- :
.- a TABLE 2 MINI DECAY HEAT REMOVAL COOLERS Identification M M-HX-1A, K)H-HX-1B Number Required Two Vendor Babcock & Wilcox Manufacturer Atlas Industrial Mfg. Co.
Cleanliness Factor 0.85 Heat Transfer, BTU /hr 2.25 x 106 0 primary temp. =
1750F G 120 gpm secondary temp. = 1000F G 200 gpm Tube Side:
Fluid Reactor Coolant Fluid Flow, lbs/hr 60,000 Design Pressure 235 psig Design Temperature, oF 200 Material 304 Stainless Steel Pressure Drop, psig 1.3 i
Shell Side:
Fluid Nuclear Services Closed Cooling Water System Fluid Flow, lbs/hr 100,000 Design Press. psig 175 psig Design Temp. OF 200 Material Carbon Steel Pressure Drop, psig 8.3 --
. =.
TABLE 2 (Con't.)
MINI DECAY HEAT REMOVAL COOLERS Classification Shell Tube Code ASME Section III, Class 3, 1971 Ed. with Addenda Thru 1971 Quality Control 4
3 Seismic I
I l
Cleanliness C
B 1 I
TABLE 3 MINI DECAY HEAT IM_ET DEBRIS FILTER f
Filter Details Identification MDH-F-1 Number Installed 1 & 3 Replacement Assemblies Manufacturer Fabricated on site Type Cartridge Casing Material 304 Stainless Steel Casing Dimensions 12-3/4" 0.0. x 26-1/4" high Size (Micron Removal Rate) 225 Operating Conditions 125 gpm 0 100 psig/1550F Design Conditions 235 psig 8 2000F Hydrostatic Test 353 psig 8 700F Code ASME BoVC Section VIII Div. 1 Seismic Class 2 - OBE f
Y
'r' e
4 27 -
D 4
O TABLE 4 MINI DECAY EAT REMOVAL SYSTEM AIR FILTRATION FANS Fan Details Identification MDH-E-1A & MDH-E-1B M.nber Installed 2
Manufacturer New York Blower Model No.
Size #12 S.W.S.I.
Type Centrifugal - upblast Rated Capacity, CFM 2200 Static Press in H O 6.5 2
Rated Speed, RPM 4200 Fan Motor Details Manufacturer Type Squirrel Cage Induction Motor Enclosure Open Rated HP 5
Rated Speed, RPM i
Lubricant-Coolant 011/ Air Power Requirements 460 V/3 Phase /60 Hz Power Source MDH-E-1A - MCC-2-11EA compt.
2ARR MXI-E-1B - MCC-2-21EA compt.
2ARR Classification l
Code C
Qiality 4
- ~;
Seismic II Cleanliness' D -
,iL
O TABLE 5 2FR EXHAUST H.E.P.A. & PREFILTER FILTER ASSEELY H.E.P.A. Filter Details Identification MDH-F-2A/2H-F-2B No. of Cells Installed / Train 2
Manufacturer Mine Safety Appliance Compang Type HEPA 1
's v
Size 24" x 24" x 12" sX Capacity, CFM 1100 CFM per filter /2200 CFM ls s-
\\
per train Pressure Drop, Clean, in W.G.
1.1 Efficiency, %
99.97%/0.3 micron Housing 2, Ultra-Lok Series "U",
Bag-In, Bag-Out Filter
.d Retaining System Pressure Drop, Dirty, In W.G.
3.0 N,
s s
Prefilter Details
'q i
1 i,',
.Ident'ification MDH-F-1A/MDH-F-1B s
E,'
,No'. of Cells Installed / Train 2
i L
.Manufactuier Mine Safety Appliances Compas t
Air-0-J m.
s
- Type LSize 24" x 24" x 2"-
Capacity, CFM.
1100 per filter /2200 per tra3 Pressure Drop; Clean, in W.G.
0.15 o
O' Efficiency, %
30%/ASFRAE Std #52 Pressure Drop, Dirty, in W.G.
0.25 3
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's +
e t
.~
.a
=
- = - -
TABLE 5 (Con't.)
KMR EXHAUST H.E.P.A. & PREFILTER FILTER ASSEMBLY Classification Code C
Quality 3
Seismic II Cleanliness D
TABLE 6 e
Instrunentation Controls cod Alams Identification Descr1Dtion Function Location Type Input Range Output Range Setooint TNS-FtE-1 Flow Element Temporary NSCCW Inlet flow to Heat Piping Orifice 0-400 gpa 0-400" W.C.
N/A Exchangers MOH-HX-1A/lB Plate l,j TNS-FT-1 D/P Transmitter Temporary NSCCW Inlet Flow to Heat Local Fox Bor 0-400" W.C.
10-15 MADC N/A Exchangers MOH-HX-1A/lB MTG E130M i
TNS-FOSH-1 Flow Diff. Alarm T.N.S.C.C.W Flow imbalance between PNL. 1 Fox Bor 10-15 MADC N/A 7.0 gpa j
inlet and outlet flow to MOH-HX-1A/IB 630-ET-OHAR T NS-FDAH-1 Annunciator Li@t T.N.S.C.C.W Flow imbalance between Ptt. 1 G.E. CR N/A N/A 7.0gpa inlet and outlet flow to MOH-HX-1A/lB 2940 i
TNS-F1-1A Flow Indicator T.N.S.C.C.W Inlet flow to MDH-HX-1A/lB PNL. 1 Vertical Mil-10-50 MADC 0-400 gpa N/A limeter West VX252 TNS-FI-la Flow Indicator T.N.S.C.C.W Inlet flow to MDH-HX-1A/lB PNL. 2 Vertical Mil-10-50 MADC 0-400 @m N/A limeter West VX252 TNE-HS-1 Push Button T.N.S.C.C.W. Flow Inbalance - Alarm FNL. 1 G. E.
N/A N/A N/A i
Acknowledge CR29t.O WA202B TNS-FE-2 Flow Element Tenparary NSCCW Outlet flow from Heat Piping Orifice 0-400 pm 0-400" W.C.
N/A j'
Exchangers MOH-HX-1A/lB Plate TNS-FT-2 D/P Transmitter Temporary NSCCW Outlet Flow from Heat Local Fox Bor 0-400" W.C.
10-15 MADC N/A Exchangers MDH-HX-1A/lB MTG E130M ?
I
(
TABLE _6 Instrunentation Controls and Alarms Identification Description Function Location Type Irput Ranoe Output Ranae Setpoint i
T NS-FOSH-2 Flow Diff. Alarm Temporary NSCCW Flow Inblance between Pvt. 1 Fox Bor 10-15 MADC N/A 7.0 gpa Inlet and Outlet flow to MDH-HX-1A/lB 630-ET-DHAR i,
TNS-FDAH-2 Annurciator Light Temporary NSCCW Flow inbalance between PNL. 2 G.E. CR N/A N/A 7.0 @m Inlet and Outlet flow to MDH-HX-1A/IB 2940 TNS-FI-2A Flow Indicator T.N.S.C.C.W Outlet flow from PNL. 1 Vertical Mil-10-50 MADC 0-400 gpa N/A MDH-HX-1A/18 limeter West i
VX252 TNS-FI-28 Flow Indicator T.N.S.C.C.W Outlet flow from PNL. 2 Vertical Mil-10-50 MADC 0-400 gpm N/A MDH-HX-1A/lB 11 meter West VX252 i
e TNS-HS-2 Pushbutton T.N.S.C.C.W. Flow Inbalance Alare PNL. 2 G.E.P.B.
N/A N/A N/A Acknowledge CR2940 i
WA2028 TNS-FHS-7 Hand Switch W/Ind.
Operates Temporary NSCCW Valve FNL. 8A P.B. W/R &
N/A N/A N/A l
Lights TNS-V-lD07 Flow to HT Exch.
G. Lights MDH-HX-1A/lB MDH-EE-1 Area Rad. Monit.
MDH-P-1A Area Radiation Local Gamma Ion 0-lx107 N/A l
Chamber W/m t
MDH-RM1-1A Indication /Alare MDH-P-1A Area Radiation Adjacent Alarm Ratemeter 0.1-1x107 2.5 R/HR to PNL. 1 victoreen 848-5 m/m r
i j
i
. ~.
i i
9
TAELE 6 e
Instru1entation Controls and Alarms Identification Description Function Location Type Irout Ranae OutDut Range Setpoint MDH-RMI-1B Indication / Alarm MOH-P-1A Area Radiation FHL. 2 Alarm Ratemeter 0.1-x107 2.5 R/HR i
Victoreen 848-5 M/m 2-E-2 Area Rad. Monit.
MDH-P-1B Area Radiation Local Gamma Ion 0-lx107 N/A Chamber MR/m MDH-RMI-2A Indication / Alarm MDH-P-1B Area Radiation Adjacent Alarm Ratemeter 0.1-1x107 2.5 R/m to PNL.1 victoreen 848-5 W/m e -RMI-2B Indication / Alarm MDH-P-1B Area Radiation PNL. 2 Alarm Ratemeter 0.1-x107 2.5 R/M Victoreen 848-5 m/m 2-E-3 Area Rad. Monit.
HT. EXCH. COMPT. AE A Local Gamma Ion 0-lx107 N/A Radiation Chamber M/m MDH-RMI-3A Indication / Alarm HT. EXCH. CDNPT. AREA Adjacent Alarm Ratemeter 0.1-lx107 3.0 R/HR Radiation to PPL. 1 Victoreen 848-5 M/W MDH-RMI-38 Indication /Ala's HT. EXCH. CDNPT. AREA PNL. 2 Alarm Ratemeter 0.1-lx107 1.0 R/M j
Radiation M/S MDHb-4 Alarm LT./ Horn Common Alarm for MDH-RE-1/2/3 PNL. 1 Light N/A N/A 2.5 or 1.0 R/M.
MDH-HAH-5
. Alarm LT./ Horn Common Alarm for MDH-E-1/2/3 FNL. 2 Light N/A N/A 2.5 or 1.0 R/M.
TABLE 6 a
Instrunentation Controls and Alarms Identification Description Function Location Type Irout Ranoe Output Ranoe Setpoint MDH-HS-4 Pushbutton Common Alarm for 60H-RE-1/2/3 PNL. 1 P.B.
N/A N/A N/A i
Acknowledge Button 60H-+tS-5 Pushbutton Common Alarm for 60H-RE-1/2/3 PNL. 2 P.B.
N/A N/A N/A Acknowledge Button 60H-FE-1 Flow Element Mini Decay Heat System Flow Piping Orifice Plate 0-200 gpa 0-750" W.C.
N/A 60H-FT-1 D/P Transmitter Mini Decay Heat System Flow Local Rack Bailey BQ75221 0-750" W.C.
4-20 MADC N/A 60H-FIAL-1-1 Indication / Alarm Mini Decay Heat System Flow & Low PNL. 1 Process Monitor 4-20 MADC 0-200 gpa 80 g)e Flow Alarm MDH-FIAL-1-2 Indication / Alarm Mini Decay Heat System Flow & Low Plt. 2 Process Monitor 4-20 MADC 0-200 g)e 80 gun Flow Alarm 60H-FI-2 Sight Flow Indicate Relief Valve Piping Flapper N/A N/A N/A Indicator MDH-V4A has lifted Type Ametek j
- 20-6120
}
W I-3 Sight Flow Indicate Relief Valve Piping Flapper N/A N/A N/A j
Indicator 60H-V48 has lifted Type Ametek j
- 20-6120 MDH-FI-4 Sight Flow Indicate Relief Valve Piping Flapper N/A N/A N/A Indicator MDH-V8A has lifted Type Ametek
- 20-6120 MDH-FI-5 Sight Flow Indiccte Relief Valve Piping Flapper N/A N/A N/A Incicator MDH-V8B has lifted Type Ametek
- 20-6120
?
e s.
I
d TABLE 6 e
Instrumentation Controls and Alams Identification Description Function Location Type Ircut Ranae Output Ranae Setpoint 60H-FHS-1 Hand Switch Controls 60H-V1 (was tagged PNL. 8A Pushbutton N/A N/A N/A DC-FHS-7066)
W/R&G Ltgs.
,4 60H-FHS-2 Hand Switch Controls 60H-V2 (was tagged PNL. 15 Pushbutton N/A N/A N/A l
KL-FHS-3189)
W/R&G Ltgs.
I MOH-PI-1A Press. Indication MOH-HX-1A Inlet Pressure Local Press.
0-200 psig 0-200 psig N/A j
Rack Gauge 60H4'I-1B Press. Indication MOH-HX-la Inlet Pressure Local Press.
0-200 psig 0-200 psig N/A
+
Rack Gauge MOH-TE-1A Temperature Element
>0H-HX-1A Inlet Teaperature Piping RTD 0-200*F 92.93-l %.49 N/A i i ohns i ;
MDH-TI-14-1 Tenperature MDH-HX-1A Inlet Tenperature PNL. 1 Process 92.93-l %.49 0-200*F 1758F Indicator Monitor ohns l
60H-T I-1A-2 Temperature M0H-HX-1A Inlet Temperature fNL. 2 Process 92.93-136.49 0-200*F 175*F Indicator Monitor ohns DE.1H-TE-2A Temperature Element MDH-HX-1A Dutlet Temperature Piping RTD 0-200*F 92.93-1 %.49 N/A ohns 90H-TIAH-2A-1 Temperature MDH-HX-1A Dutlet Temperature PNL. 1 Process 92.93-1%.49 0-200*F 170*F i
Indicator /Alatin i
Monitor ohms MuH-TIAH-2A-2 Temperature MDH-HX-1A Dutlet Temperature PNL. 2 Process 92.93-1 %.49 0-200*F 170*F Indicator / Alarm Monitor ohms MOH-TE-18 Temperature Element MDH-HX-18 Inlet Temperature Piping RTD 0-200*F 92.93-136.49 N/A ches
. l
't i
s
TAa E 6 e
Instrumentation Controls and Alarms i
Identification Oescription Function Location Type Irput Ranae Output Rance SetDolnt MDH-TI-18-1 Temperature MDH-hX-1B Inlet Teg erature PNL. 1 Process 92.93-l %.49 0-200T 175T Indication Monitor ohms 60H-T I-18-2 Temperature MDH-HX-18 Inlet Temperature PNL. 2 Process 92.93-1 %.49 0-2000F 1750F Indication Monitor ohms 60H-TE-2B Temperature Element MDH-HX-18 Outlet Temperature Piping RTO 0-2000F 92.93-l %.49 N/A ohms MDH-TIAH-28-1 Temperature MDH-HX-1B Outlet Temperature PNL. 1 Process 92.93-l %.49 0-200T 1700F 1
l Indicator / Alarm Monitor otas MDH-TIAH-28-2 Temperature MDH-HX-la Outlet Temperature PNL. 2 Process 92.93-l %.49 0-2000F 170T Indicator / Alarm Monitor ohms i
60H-PI-2A-1 Press. Ind.
MDH-P-1A Suction Pressure Local Bourdan Tube 0-200 psig 0 200 psig N/A Rack MDH-PT-2A Press. Transmitter MDH-P-1A Suction Pressure Local Bailey KS67221 0-200 psig 4-20 MADC N/A Rack I
o MDi' P-1A Suction Pressure PNL. 1 Process 4-20 MADC 0-200 psig Low 16
}
MDH-PI-2A-2 Pressure Indication c
Monitor psig l
1, MuH-PI-2A-3 Pressure Indication MDH-P-1A Suction Pressure PNL. 2 Process 4-20 MADC 0-200 psig Low 16 Monitor psig
?
l MDH-PI-3A-1 Pressure Indication MDH-P-1A Discharge Pressure Local Bourdon 0-300 psig 0-300 psig N/A Rack Tube t
MLH-PT-3A Press. Transmitter MDH-P-1A Suction Pressure Local Bailey KS67221 0-300 psig 4-20 MADC N/A Rack
(
10H-PI-3A-2 Pressure Indication MDH-P-1A Discharge Pressure PNL. 1 Process 4-20 MADC 0-300 psig Hi 220 Monitor psig l
a TA8LE 6 Instrumentation Controls and Alarms j
j Identification Description Function Location Type Irput Ranae. Output Ranae Setpoint J
f 1
MDH-PI-3A-3 Pressure Indication M]H-P-1A Discharge Pressure PNL. 2 Process 4-20 M OC 0-300 psig Hi 220 i
Monitor psig i
I; o M E PI-28-1 Pressure Indication MDH-P-1B Suction Pressure Local Bourdon 0-200 psig 0-200 psig N/A lt Rack Tube l
M]H-PT-28 Press. Transmitter MDH-P-1B Suction Pressure Local Bailey KS67221 0-200 psig 4-20 MM)C N/A i'
Rack t
@H-PI-28-2 Pressure Indication MDH-P-18 Suction Pressure PNL. 1 Process 4-20 MADC 0-200 psig Low 16 i
Monitor psig l
M h PI-28-3 Pres'sure Indication MDH-P-18 Suction Pressure PNL. 2 Process 4-20 MADC 0-200 psig Low 16 Monitor psig k
M h PI-38-1 Pressure Indication MDH-P-1B Discharge Pressure Local Bourdon 0-300 psig 0-300 psig N/A Rack Tube i I i
M]H-PT-38 Press. Transmitter MDH-P-IB Discharge Pressure Local Bailey K567221 0-300 psig 4-20 MADC.
N/A Rack a
l MDH-PI-38-2 Pressure Indicator EH-P-IB Discharge Pressure PNL. 1 Process 4-20 MADC 0-300 psig Hi 220
?
l Monitor psig l
)
l, 2H-PI-38-3 Pressure Indicator MDH-P-la Discharge Pressure FNL. 2 Process 4-20 MADC 0-300 psig Hi 220 l ;
Monitor psig MDH-CS-1 Hand Switch Controls MDH-P-1A PNL 1 E
N/A N/A INTLK f
W/Ind. Li@ts CR2940 with US203E Pumps OH-P-1A, IB M]H-CS-2 Hand Switch Controls MOH-P-1A Ptt.2 2
N/A N/A INTLK W/Ind. Li@ts CR2940 with US203E Pumps OH-P-1A, 18 j t
4 t
\\
w w
g
TA8LE 6 e
Instrumentation Controls and Alarms l
Identification Description Function Location Type Input Ranae Output Ranoe Setpoint
.i 60H-CS-3 Hand Switch Controls 60H-P-1B PNL.1 E
N/A N/A INTLK j
W/Ind. Lights CR2940 with US203E Pumps OH-P-1A, 1B 60H-CS-4 Hand Switch Controls MDH-P-1B PNL.2 E
N/A N/A INTLK W/Ind. Lights CR2940 with i
US203E Pumps DH+-1A, 1B
>0H-FHS-lb Pushbutton Controls >0H-V18 (was PNL. 8A Mercury N/A N/A N/A w/R&Q Lights tagged DC-FHS-7069)
E-30 MDH-FHS-19 Pushbutton Controls MOH-Vl9 (was PNL. 15 Mercury N/A N/A N/A w/R&G Lights tagged W1.-FHS-1332)
E-30 j l MDH-FHS-21 Handswitch Controls MDH-V21 PNL. 1 E
N/A N/A N/A J
Keylock (Demineralized Water CR2940 e
S w ly Valve)
UN2000
'1 6
M0H-FHS-22 Hanoswitch Controls 60H-V22 PNL. 1 E
N/A N/A N/A l
Keylock (drain valve)
CR2940
- l i UN200D 4
j DOH-FHS-28 Handswitch Controls MDH-V28 PNL. 1 E
N/A N/A N/A Keylock (60H-F-1 Bypass Valve)
CR2940 UN2000
,i l 60H-FHS-29 Handswitch Controls MDH-V29 PNL. 1 E
N/A
_N/A N/A 1
Keylock (60H-F-1 Downstream CR2940
.i Isolation Valve)
UN200D B0H-FHS-30 Handswitch Controls 60H-V30 PNL. 1 E
N/A N/A N/A Keylock (MDH-F-1 Upstream CR2940 Isolation Valve)
UN200D 4 l
l l
I
TA8LE 6 g
Instrumentation Controls and Alarms Identification Description Furction Location Type Irput Ranae Output Ranoe Setpoint t
MDH-FHS-32 Handswitch Controls MDH-V32 PNL. 1 E
N/A N/A N/A Keylock (60H1 System vent valve)
CR2940 LN2000
,e 00H-FHS-34 Handswitm Controls MDH-V34 FNL. 1 E
N/A N/A N/A Keylock (Demineralized Water CR2940 S @ ly Valve)
'UN200D 30H-FHS-35 Handswitch Controls 60H-V35 PNL. 1 E
N/A N/A N/A Keylock (MDH-F-1 Upstream CR2940 Isolation Valve)
UN2000 p0H-FHS-36 Handswitch Controls 60H-V36 FNL. 1 E
N/A N/A N/A Keylock (MDH-F-1 Downstream (R2940 1 solation valve)
UN200D 0-6" H O 3.3" W.C DOH-OP15-103 Differential Indicate & Alarm hi@
F.H. Bldg. Magnahelic 2
i Pressure Indicating differential pressure El. 280'6" gage 8
Switch across MDH-F-1A and A66 + 13' (3006SR)
MDH-F-2A filters AH + 4' l
MDH-OPAH-103 Differential Annunicate high D/P PNL. 1 C.E.
N/A N/A 3.3" W.C Pressure Alarm
.across MDH-F-1A and CR2940 Hi@ (Amber Lt.)
MDH-F-2A filters 0-6" H O 3.3" W.G 60H-OPIS-104 Differential Indicate & Alarm high F.H. Bldg. Magnahelic 2
Pressure Indicating differential pressure El. 280'6" gage Switch across MDH-F-1B and A66 + 17' (3006SR)
MDH-F-2B filters AH + 19' MDH-DPAH-104 Differential Annunicate high D/P PNL. 1 G.E.
N/A N/A 3.3" W.G Pressure Alarm across MDH-F-1B and CR2940 High (Amber Lt.)
60H-F-28 filters i G
)
A
TAELE 6 Instrumentation Controls and Alarms l
Identification Description Function Location Type Irout Ranoe Output Rance Setpoint I.
MDH-FHS-105 Handswitch Provide control of FNL. 1 C.E.
N/A N/A Keylock MDH-E-1A and supply /
US 203E discharge dampers o
(MDH-MV-101/110)
K)H-FHS-106 Handswitch Provide control of PNL. 1 G.E.
N/A N/A N/A Keylock MDH-E-1B and st4) ply /
CR2940 discharge dampers US 203E (MDH-MV-102/lll)
N/A M)H-Fi-107 Annubar Flow Measure discharge flow Ducting Element from MDH-E-1A and MDH-E-18 MDH-FISL-107 Flow Indicating Indicating discharge flow Oucting Magnahelic 0-1" H O 1760 S&M 2
Switch (Low) from MDH-E-1A and MOH-E-1B A66 + 11' gage and alarm low flow AK + 2' (300lSR) j MDH-FAL-107 Flow Alarm Low Annunicate low discharge PNL. 1 G.E.
N/A N/A 1760 SCFM (Amber Lt.)
flow from M)H-E-1A or CR2940 i
f MDH-E-18
=
h)H-UA-107 Annunicator Alare low discharge flow FM_. 2 G.E.
N/A N/A 1760 SCFN from MDH-E-1A or 18 and C2940 Manual
}
3.3" W.G.
high DP across filter trains i
"HVAC TROUBLE" j
N/A N/A Later K)H-RAH-108 Annunicator Alarms high airborne Adjacent radiation from MDHR Pump to PNL. 1
?
Cubical Filtration System MM-uA-108 Annunicator Alarms high airborne PNL. 2 N/A N/A Later radiation from MDHR Punp Cubical Filtration System.
I 4
4 1
e t
^
l TAELE 6 l
Instrumentation Controls and Alarms i
l Identification Description Function Location Type Ircut Ranoe OutDut Range Setooint 1'
i 10-106 go IO44IntI-108P Radiation Monitor Indicate particulate airborne F.H. 280' Victoreen with Indicator /
radiation from 90HR Pump Cubicle el.
842-11 f
b Alarm Filtration System + Alarms: Hi-Red, Local I
Alert-Amber, Fail-Green 10-106 i
DO44IMI-1081 Radiation Monitor Indicate lodine airborne F.H. 280' Victoreen go
(
with Indicator /
radiation from 60HR Pump Cubicle el.
842-31 Alare Filtration System + Alarms: Hi-Red, Local Alert-Amber, Fail-Green j --
10-106 cpm j
MDH-AMI-108G Radiation Monitor Indicate Noble Oas airborne F.H. 280' Victoreen with Indicator /
radiation from MDHR Pump Cubicle el.
842-11 Alain Filtration System Alarms: Hi-Red.
Local Alert-Amber, Fail-Green l
M0H-RIA-100P-1 Radiation Indicator / Indicate particulate airborne Adj Pnl. 1 Victoreen Alare radiation from MDtH Pump Cubical A66 + 4' 844-18 Filtration System + Alarms for High-AP + 0' Red, Alert-Amber, and Fail-Green
+
MOH-RIA-1081-1 Radiation Indicator / Indicate iodine airborne Adj Pnl. 1 Victoreen Alarm radiation from MDtR Pump Cubical A66 + 4'. 844-18 i
j Filtration System + Alarms for High-AP + 0'
,{
Red Alett-Amber, and Fall-Green k
604-RIA-108G-1 Radiation Indicator / Indicate Noble gas airborne Adj Pnl.1 Victoreen Alare radiation from MOHR Pump Cubical A66 + 4' 844-18 t
. Filtration System + Alarms for High-AP + 0' Red, Alert-Amber, and Fail-Green i
lui-RIA-108P-2 Radiation Ratemeter/ Indicate particulate airborne Pnl. 2 Victoreen 10-106 ga i
Alarm radiation from >0HR Pump Cubical 908428 Filtration System + Alarms for High-Red, Alert-Amber, and Fail-Green i
' i i
i d
4 l
TABLE 6 e
Instrumentation Controls ma Alarms I
Identification Description Function Location Type input Range Output Rance Setpoint 6-RIA-1081-2 Radiation Ratemeter/ Indicate iodine airborne Pnl. 2 victoreen 10-106 cpm Alare radiation from MOHR Pump Cubical 908428 Filtration System + Alarms for High-Red, Alert-Amber, and Fail-Green 6-RIA-108G-2 Radiation Ratemeter/ Indicate Noble gas airborne Pnl. 2 Victoreen 10-106 cpm i
Alarm radiation from MOHR Pump Cubical 908428 Filtration System + Alarms for High-Red, Alert-Amber, and Fall-Green MOH-VE-1A Accelerometer MOH-P-1A bearing housing MOH-P-1A Vibra-0 - 25 g 0 - 2500 av WA Senser vertical radial vibration brg. hous-Metrics ing
- 6G22 j
MD4-VE-2A Accelerometer MOH-P-1A bearing tousing MOH-P-1A Vibra-0 - 25 g 0 - 2500 av WA Senser torizontal radial vibration brg. hous-Metrics ing
- 6022 W -VE '8 Accelerometer MOH-P-1B bearing housing MOH-P-18 Vibra-0 - 25 g 0 - 2500 av WA j
Senser vertical radial vibration brg. hous-Metrics ing
- 6022 MDi-VE-28 Accelerometer MOH-P-1B bearing tousing MOH-P-1B Vibra-0 - 25 g 0 - 2500 av WA Senser torizontal radial vibration brg. tous-Metrics i
ing
- 6022 j
p-VIM-1 Annunciator Lights A) CHAPNEL 1 - MDi-P-1A bearing Adjacent Vibralarm WA WA 2-3 times
& velocity vertical radial vibration to ppt. 1 Model No.
eDove
?
Indication
" ALERT" LIQiT (Low Alarm-White Lt.) A66 + 3' VA 102-2 inittai I
M + 6' level CHANPEL 1 - Mai-P-1A bearing Adjacent Vibralarm WA
'WA 4-5 times housing vertical radial vibration to Ptt. 1 Model No.
above
" SHUTDOWN" LIQ 1T (High Alarm-A66 + 3' VA 102-2 initial Red Lt.)
M + 6' level i l
t
e TABLE 6 Instrumentation Controls and Alarms j
Identification Description Function Location Type Irput Ranae Output Ranae Setpoint MDH-VIAH-1 Annunciator Lights B) CHANPEL 2 - >0H-P-1A bearing Adjacent Vibralarm N/A N/A 2-3 times
& Velocity horizontal radial vibration to PPL.1 Model No.
above Indication
" ALERT" LIGHT (Low Alam-White Lt.) A66 + 3' VA 102-2 initial AM + 6' level i
CHANNEL 2 - >0H-P-1A bearing Adjacent Vibralarm N/A N/A 4-5 times i !
housing horizontal radial vibration to PPL.1 Model No.
.above t
"SHJTDOWN" LIGHT (High Alarm-A66 + 3' VA 102-2 initial Red Lt.)
AM + 6' level C) System Malfunction Light (amber)
Adjacent Vibralarm N/A N/A N/A to PNL.1 Model No.
A66 + 3' VA 102-2 i
M + 6' i
l D) WAmEL 1 & 2 Velocity meter Adjacent Vibralara 0 - 2500 av 0.0.7 in/sec N/A to PNL.1 Model No.
l A66 + 3' VA 102-2 l
M+68 bVIAH-2 Annunciator Lights A) CHANNEL 1 - 60H-P-18 bearing Adjacent Vibralarm N/A N/A 2-3 times j
& Velocity housing vertical radial vibration to PNL.1 Model No, above Indication "ALIRT" LIGHT (Low Alarm-White Lt.) A66 + 3' VA 102-2 initial i j AM + 8' level l
l WANNEL 1 - 60H-P-1B bearing Adjacent Vibralarm N/A N/A 4-5 times housing vertical radial vibration to PNL.1 Model No.
above i
l "SHJTDOWN" LIWT (High Alam-A66 + 3' VA 102-2 initial 4
Red Lt.)
AM + 8' level 4
h B) CHANNEL 2 - 60H-P-18 bearing Adjacent Vibralara N/A N/A 2-3 times
?
housing horizontal radial vibration to PNL.1 Model No.
tbove i
" ALERT" LIGHT (Low Alarm-White Lt.) A66 + 3' VA 102-2 initial M + 8' lewl d
C
e TABLE 6 i
e
,~
Instrumentation Controls and Alarms
'dentification Description Function Location Type Irput Ranae Output Range Setpoint
{
60H-VIAH-2 Annunciator Lights CHANNEL 2 - K H-P-18 bearing Adjacent Vibralare N/A N/A 4-5 times i
& Velocity housing horizontal axial to PNL.1 Model No, above
,j.
Indication vibration " SHUTDOWN" LIGHT (H12h A66 + 3' VA 102-2 initial Alam-Red Lt.)
AM + 8' level l
C) System Malfunction Light (amber)
Adjacent Vibralarm N/A N/A N/A to FNL.1 Mvd No.
A66 + 38 Va. 1G2-2 AM + 8' D) CHANNEL 1 & 2 Velocity meter Adjacent Vibralara 0 - 2500 av 0.0.7 in/sec N/A to PNL.1 Model No.
A66 + 3' VA 102-2 AM + 8' MDH-VAH-1 Annunicator High Vibration of MDH-P-1A Pnl. 2 N/A N/A See DOH-VIAH-1&2 Light or IB bearing housing or system malfunction i
,MDH-OPT-37 D/P Transmitter Measure Differential Pressure Piping Foxboro 0-120 psid 10.-50 ma N/A across 60H-F-1 A66' + 12' N-EllDM-1 AF + 8' HAB2 1
60H-OPS-37 D/P Pressure High D/P Alarm Signal across Pnl. 1 Foxboro 10-50 ma N/A na j
l Switch 60H-F-1 to MDH-DPAH-37 63LJ-BT-0ER 3
1 i
t 60H-OPAH Annunicator Alam High D/P across 60H-F-1 Pnl. 1 &
C. E. Type N/A N/A 65 psid i
1&2 Light /Hom (Amber Lt.)
Pnl. 2 CR2940 above initial filter clean d/
60H-DPI-37 D/P Indicator Indicate Differential Pnl. 1 Westinghouse 10-50 ma 0-120 psid N/A Pressure Across MDH-F-1 VX252 i
4
- )
1 i
TABLE 6 Instrumentation controls and Alarms Identification Oescription Function Location Type Input Rance Output Rance Setpoint ii I'
M)H-FI-6 Flowneter Indicate Demineralized water flow Piping Matheson 0.3-3.0 gun 0.3-3.0 gun 1 to 1.5 gpa to MDH-P-1A seal block FM-llDO M]H-FI-7 Flowneter Indicate Demineralized water flow Piping Matheson 0.3-3.0 gpa 0.3-3.0 gpa 1 to 1.5 gie to MDH-P-1B seal block FM-1100 i
MDH-TVC-1 T.V. Camera Monitor Ot-P-1A & IB pump cubicles F.H. Bldg. Diamond Elec.
N/A N//.
N/A El. 280'-6 ST-11 Camera A66 + 18' PT-1050-L Pan /
l AF + 3' Tilt 30-150, M Zoom Lens I
MDH-TVC-2 T.V.* Camera Monitor MDH-HX-1A & IB heat exchange F.H. Bldg. Diamond Elec.
N/A N/A N/A El. 280'-6 ST-ll Camera room A67 + AF PT-1050-L Pan /
Tilt 30-150, m Zoom Lens l1 MDH-RACK-TV1 T.V. Monitor Monitor for MDH-TVC-1 and controls Cont. Bldg Con-Rack N/A N/A N/A l ?
& Controls for Pan-Tilt mechanism with zoom /
El.305'-0" 14" B & W focus controls C47 + 0' Receivers and j
CC + 9' Control Modules i
}i i
ia !
l '
o TABLE 6 f
Instrumentation Controls and Alarms II Identification Descriotion Function Location Type Ircut Rance Output Ranoe Setpoint s
h, pOH-RACK-TV2 T.V. Monitor Monitor for MM-TVC-2 and controls Cont. Bldg Con-Rack N/A WA WA
& Controls for Pan-Tilt mechanism with zoom /
E1.305'-0" 14" B & W
's focus controls C47 + 0' Receivers and
?;
CC + 9' Control Modules
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