ML17306A983

Window 2B08B, Rc LO Temp Over Press of Rev 5 to Procedure 40AL-9RK2B

ML17306A983
Person / Time
Site:	Palo Verde
Issue date:	09/03/1992
From:	ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:
Shared Package
ML17306A982	List: ML17306A980 ML17306A983 ML17306A984 ML17306A985 ML17306A987 ML17306A998
References
40AL-9RK2B, NUDOCS 9209250254
Download: ML17306A983 (6)

Text

NTROLLED DOCUME" 1 Procedure Number 40AL-9RIVB Page 20 of 82 Revision 00.05 Window No.2B08A RC LO TEMP OVER PRESS Page 1 of 3 IAT WIND W INDEX IBLE A E SETPIEINT A RCYS22 SDC Isolation Valve Train A Alignment RC Loop Temp<260 F and UV-651 or 653 OR UV-652 or 654 CLOSED RCYS23 SDC Isolation Valve Train B Alignment RC Loop Temp<260 F and UV-651 or 653.OR UV-652 or 654 CLOSED RCYS24 Low Temp Overpressure (LTOP)RC System Press>410 psia*~And when one of the following conditions exist;Safety Injection SDC Isolation VLV UV-651 Not Full Closed and Safety Injection SDC Isolation VLV UV-653 Not Full Closed or Safety Injection SDC Isolation VLV UV-652 Not Full Closed and Safety Injection SDC Isolation VLV UV-654 Not Full Closed.9209250254 920903 PDR ADOCK 05000528 PDR a

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I 4f CONTROLLED DOCUME'rocedure Number 40AL-9RIKB Page 22 of 82 Revision 00.05 dow Labe]RC LO TEMP OVER PRESS Window No.2BOSA Page 3 of 3 PT.ID RESPONSE SECTION QRR)QP B POSSIBLE CAUSE SETPOINT RCYS24 Low Temp Overpressure (LTOP)RC System Press>410 psia and UV-651 and UV-653 OR UV-652 and UV-654 NOT FULLY CLOSED A~A None 2.Monitor the following on Panel B02 to verify pressure and the validity of the alarm.~PRESSURIZER PRESSURE, RCA-PI-103

~PRESSURIZER PRESSURE, RCB-PI-104

~PRESSURIZER PRESSURE, RCC-PI-105

~PRESSURIZER PRESSURE, RCD-PI-106 Determine the cause of the overpressure condition.

2.If the Low Temperature Overpressure Relief Valves are in service, correct the causes of the pressure transient.

Warn personnel in Containment of the possible radiological hazard.3.If the LTOP Relief Valves were originally isolated, close/check closed the following valves on Panel B02: 4.~RC LOOP 1 S/D CLG-LPSI PUMP A SUCT VLV, SIA-UV-651

~RC LOOP 1 S/D CLG-LPSI PUMP A SUCT VLV, SIC-UV-653 RC LOOP 2 S/D CLG-LPSI PUMP B SUCT VLV, SIB-UV-652

~RC LOOP 2 S/D CLG-LPSI PUMP B SUCT VLV, SID-UV-654 Perform independent verification on all applicable valves, breakers and components that were operated by this alarm response per 02AC-OZZ01, Independent Verification of Valves, Breakers and Components.