ML20205C758
| ML20205C758 | |
| Person / Time | |
|---|---|
| Site: | Millstone, Haddam Neck, 05000000 |
| Issue date: | 12/13/1985 |
| From: | CONNECTICUT YANKEE ATOMIC POWER CO. |
| To: | |
| Shared Package | |
| ML20204H467 | List:
|
| References | |
| EOP-35-FR-I.2, NUDOCS 8810260566 | |
| Download: ML20205C758 (5) | |
Text
_
o E. J. Mrocz' 85 Form Appr ved by Station auperintend2nt Eftsctive Date STATION PROCEDURE COVER SHEET N
' ~ /'h A.
IDENTIFICATION
'\\
Number E0P 35 FR-I.2 Rev.
1 Title RESPONSE TO LOW PRESSURIZER LEVEL Prepared By G. Olson B.
REVIEW I have reviewed the above procedure and have found it to be satisfactory.
e TITLE SIGNATURE DATE
/
DEPARTMENT HEAD
/
C.
UNREVIEWEDSAFETYQUESTIONEVALUATIONDOCUMENTATIONREQUIRED:
(Significant change in procedure method or scope YES [ ]
NO (?<]
as described in FSAR)
(If yes, document in PORC/SORC meeting minutes)
ENVIRONMENTAL IMPACT Adverse environmental impact)
YES [ ]
NO [y]
(If yes, document in PORC/SORC meeting minutes)
D.
INTEGRATED SAFETY REVIEW REQUIRE 0 (Affects response of Safety Systems, performance YES [ ]
N0()d of safety-related control systems or performance of control systems which may indirectly affect safety system response.)
(If yes, document in PORC/SORC meeting minutes.)
E.
PROCEDURE REQUIRES ORC REVIEW YES C>Q NO ( ]
60RC)JORCAPPROVAL d
F.
@ SORC Meeting Number 3' -85 cM G.
APPROVAL AND IMPLEMENTATION The attached procedure is hereby approved, and effective on the date below:
'AN Q - 1]-((
Station /Seofice/ Unit Superinfiif5 dent Effective Date i
SF 301 Rev. 7 g o2g g $$
3 Page 1 of 1 P
E0P 35 FR-I.2 rage 1 Rev. 1 O
RESPONSE TO LOW PRESSURIZER LEVEL Page No.
Eff. Rev.
1-4 1
4 O
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.q.
RESPONSE TO LOW PRESSURIZER LEVEL E0P 35 FR-I.2 Page 2 Rev. 1 n
V STEP' ACTION / EXPECTED RESPONSE RESPONSE NOY 097AINEO 4
A.
PURPOSE This procedure provides actions to respond to a low pressurizer level.
B.
EhTRY CONDITIONS This procedure was written for Modes 1, 2, 3 and 4 assuming RHR in not in service and SI has been terminated. Using this procedure when not in these modes requires a step by step evaluation to determine if the required action is still applicable to current plant conditions.
This procedure is entered from E0P 35 F-0.6, INVENTORY Critical Safety Function Status Tree on a YELLOW condition.
T 4
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OPW441 344
m e
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RESPONSE-TO LOW PRESSURIZER LEVEL E0P 35 FR-I.2
.Page 3 U
Rev. 1 STEP ACTIOWEXPECTEO RESPONSE RESPONSE NOT OSTAINED 1
Check If SI Has Been Terminated Return to procedure and step in effect.
a.
SI pumps - ALL STOPPED b.
Charging pumps to Reactor Cold Legs Isolation Valves - CLOSED 2
Verify Letdown - ISOLATED Manually isolate letdown.
3 Check If Charging Flow Has Been Established a.
Charging pump - AT a.
Perform the following LEAST ONE RUNNING
- 1) E RPCCW flow to RCP thermal barriers is lost., THEN isolate seal injection to affected RCP before starting charging Pump.
- 2) Start one charging Pump.
- 3) IF seal injection was F
isolated, THEN restore seal injection to RCPs b.
Instrument Air to b.
Establish instrument air Containment - ESTABLISHED to containment.
- 1) One instrument air compressor - RUNNING
- 2) OPEN instrument air containment isolation valves c.
Charging flow -
c.
Establish Normal ESTABLISHED charging flow 4
Increase Charging Flow To IF charging flow at maximum, Restore PZR Level THEN manually operate SI pumps as necessary. E PZR level can NOT be restored, THEN go to E0P 35 E-1, LOSS OF REACTOR OR SECONDARY COOLANT, Step 1.
O OPSees 1 3-84
e RESPONSE TO LOW FME55UM14EM LEVEL EOF 35 FM-1.2 Psgm 4 Rev. 1 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OSTAINED 5
Check PZR Level a.
Level - INCREASING a.
Return to Step 4.
b.
Level - GREATER THAN 17%
b.
Return to Step Sa.
6 Turn On PZR Heaters As Necessary 7
Return to Procedure And Step In Effect
-FINAL-4 O
O OPSC641 3-84