05000317/LER-1983-047, Updated LER 83-047/03X-1:on 830822,control Room Air Conditioner Compressor 12 Failed to Run W/Start Signal. Caused by Compressor Trip Due to High Pressure.High Pressure Switch reset.W/840126 Ltr

Updated LER 83-047/03X-1:on 830822,control Room Air Conditioner Compressor 12 Failed to Run W/Start Signal. Caused by Compressor Trip Due to High Pressure.High Pressure Switch reset.W/840126 Ltr

ML20086L622
Person / Time
Site:	Calvert Cliffs
Issue date:	01/26/1984
From:	Junge M, Lheureux R, Russell L BALTIMORE GAS & ELECTRIC CO.
To:	Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
LER-83-047-03X, LER-83-47-3X, NUDOCS 8402080339
Download: ML20086L622 (2)

LER-2083-047, Updated LER 83-047/03X-1:on 830822,control Room Air Conditioner Compressor 12 Failed to Run W/Start Signal. Caused by Compressor Trip Due to High Pressure.High Pressure Switch reset.W/840126 Ltr

Event date:
Report date:
3172083047R00 - NRC Website

text

- . - - __

UPDATE REPORT PREVIOUS REPORT DATE: 09-22-83 APPW#V2O GV 4Mg N:M F*&te346 U.S. NUCLEA2 R23WLAT353Y COMMIX 83M

1. • " LICENSEE EVENT REPORT 5' EEs ss aa 1

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

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EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l 0 l2 l l At 2155 during normal operation. 12 control room air conditioner (CRAC) l 03l compressor would not run when it received a start signa l (T.S.3. 7.6.1 ) . l l0l4ll Investigation revealed the compressor had tripped on high pressure. The l l0l5ll compressor was reset and the 12 CRAC veturned to service at 2315. l 10l6ll 11 CRAC remained operable throughout the event. l l0l7ll Similar events; none. l lois .l l

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n u CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h l1l0 ll Maintenance personnel inspected AC unit and reset high pressure switch. l No abnormality was observed. The unit was rest'rted and operated nor- l lilill l1l2ll mally. On 1/24/84 the high pressure switch was checked for calibration ]

! M! and found to be set at 353 041. It was adiusted to the setpoint niven l ltl4ll in the TRANE Tech Manual (365 psi). No further action required. l

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NAME OF PREPARER M. A. Junge/R. W. L'Ileureux PHONE: (301) 269-4969/4503

.  ! 'o' BALTIMORE G AS AND ELECTRIC COMPANY P.O . BO X 14 7 5 B A LTIM OR E. M A R Y L A N D 2120 3 NUCLFAR POWER DEPARTMENT COLVERT CLIFFS NUCLEAR POWER PL ANT LUSBY. M ARYLAND 20657 January 26, 1984 Dr. Thomas E. Murley Docket No. 50-317 Regional Administrator License No. DPR 53 U. S. Nuclear Regulatory Commission Region 1 631 Park Avenue King of Prussia,'PA 19406

Dear Dr. Murley:

Attached is LER 83 47/3X, Revision 1, as required per Technical Specification 6.9.

Should you have any questions regarding this report, we would be pleased to discuss them with you.

Very truly yours, L. B. Russel Plant Superintendent LBR:RWL:bsb cc: Director, Office of Management Inf orraat ion and Program Control Messrs: A. E. Lundvall, Jr.

J. A. Tiernan t

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