ML19224B212
| ML19224B212 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 02/10/1978 |
| From: | Metropolitan Edison Co |
| To: | Mullinix W NRC/IE |
| References | |
| 2202-2.3, TM-0036, TM-36, NUDOCS 7906140224 | |
| Download: ML19224B212 (3) | |
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TMI DOCUMENTS
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DOCUMENT NO:
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METROPOLITAN EDISON r0MPANY.
Wilda R. Mullinir.,
NRC 4
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THREE MILE ISLAND NUCLEAR STATION AP ' 3 1973 UttIT #2 EMERGEtiCY PROCEDURE 2202-2.3 LOSS OF IttSTRUMEllT AIR AfiD SERVICE flR
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Ta' le of Effective Pages o
Pace Date Revision Paoe Date Revision' Pcce Date R evision 1.0 02/10/78 3
26.0 51.0 2.0 02/10/78 3
27.0 52.G 3.0 28.0 53.0 4.0 29.0 54.0 5.0 30.0 55.0 6.0 31.0 56.0 7.0 32.0 57.0 8.0 33.0 58.0 9.0 34.0 59.0 10.0 35.0 60.0 11.0 36.0 61.0 12.0 37.0 62.0 13.0 38.0 63.0 14.0 39.0 64.0 15.0 40.0 65.0 16.0 41.0 66.0 17.0 42.0 67.0 18.0 43.0 68.0 19.0 44.0 69.0 20.0 45.0 70.0 21.0 46.0 71.0 22.0 47.0 72.0 23.0 48.0 73.0 24.0 49.0 74.0 25.0 50.0 75.0 Un:t 1 Staff Ree:mmends Approva!
Unit 2 Staff Recommends Approval Approval N
Date Approval I/
Data Cogninnt Dept. Head Cogninnt Dept. Head Unit 1 PORC Recommends Approval Unit 2 PORC Recom nends Appro,al Date ~
f2 Date Chairrnan of PORC v Chairrnadof PORC Unit 1 Superintendent Approval Unit 2 Superi ten tent Approval n
DUAlf Date $ / 0 rT
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Date f
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Manager Generatton Quality Assurance Approval M/f Y
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2202-2.3 Revision 3 I
02/10/78
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i THREE MILE ISLAND NUCLEAR STAT 10t1 APR 2 3 1979.-
UNIT #2 EMERGENCY PROCEDURE 2202-2.3 LOSS OF INSTRUMEf4T AIR AND SERVICE AIR 1.0 SYMPTOMS 1.1 Instrument Air Compressor Trouble Alarm.
1.2 Service Air Compressors Trouble Alarm.
1.3 Low readings on Instrument Air and Service tir Receiver Pressure Indicators on Panel 17.
2.0 IMMEDIATE ACTION 2.1 Automatic Action 2.1.1 The SA & IT compressor in AUTO will start when IA/SA pressure drops to 100 psig.
2.1. 2 SA-V358 cieses at 70 psig isolating the Service Air System.
2.2 Manual Actions 2.2.1 Verify running or start all IA and SA compressors.
2.2.2 If Instru ant Air pressure traps to 60 psig and continues to decrease:
2.2.:.1 Trip the P.aictor and Turbine and carry out the immediate actions of 2202-1.1 and 2203-2.2.
CAUTIO:i:
Immediately isolate af fected OTSG's atmospheric dump valve by closing the installed Manual valve (MS-VI A or MS-ViB) if a primary to secor.dary leak is detected.
2.2.2.2 Manually set MU-V32 for 40 gpm seal injection flow.
2.2.3 If, with all Instrument Air and Service Air compressors running, Instrur:ent Air pressure is being maintained at = 70 psig, CLOSE SA-V357 to isolate the Instrument Air System from the Service Ai-System.
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2202-2.3 i
Revision 3 4/
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TN e If Instrument Air pressure increases after clocing "'
NOTE:
SA-V357, the leak is in the Service Air System.
3.0 FOLLOW UP ACTIC.1 3.1 Attempt to locate and isolate the leak in ths air system.
3.2 If Instrument Air pressure has continued to decrease below 60 psig:
3.2.1 Manually OPEN MU-V224A and/or 2248, (Inlet to Makeup and Purificaiton demineralizer filters).
3.2.2 Manually OPEN VA-V4A, B and/or C to the running Condenser Vacuum pump.
3.2.3 Manually OPEN Feedwater and Main Steam Penetration Cooling valves (AH-V91, 92, 93, and 94).
3.2.4 Trio the Reactor Building Normal Cooling Water pumps (RB-P-1 A and IB).
3.2.5 Trip the Control Building River Water Booster pumps (NR-P-2A and 28).
3.2.5 Initiate Reactor Building Emergency Cooling per 2104-5.1.
3.3 If Instrument Air pressure is being maintained >60 psig.
3.3.'
Locate and isolate the leak.
2.0 2 3 5 2f O
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