TXX-6323, Interim Deficiency Rept CP-86-18 Re Difficulties in Starting & Operating Safety Chilled Water Chiller Units.Initially Reported on 860521.Vendors Contacted Re Revised Component Cooling Water Inlet Temp.Next Rept Submitted by 871218
| ML20212N217 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 03/09/1987 |
| From: | Beck J, Counsil W TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| CP-86-18, TXX-6323, NUDOCS 8703120403 | |
| Download: ML20212N217 (2) | |
Text
- - - - - _ _
o-Log # TXX-6323 P9 File # 10110 C
909.4 C
Ref # 10CFR50.55(e) 1lIELECTRIC
%iHimm C. Counsit tm,,,, re,,,,,
March 9, 1987 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C.
20555 t
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)
DOCKET NOS. 50-445 SAFETY CHILLED WATER CHILLER UNITS SDAR: CP-86-18 (INTERIM REPORT)
Gentlemen-On May 21, 1986, our letter logged TXX-4820 provided notification that the issue involving difficulties in starting and operating the safety chilled water chiller units was reportable under the provisions of 10CFR50.55(e). The issue identifies the failure of the Component Cooling Water (CCW) supply to
{
maintain temperatures at or above the chilled water return temperature for both the operating and standby chillers. Our last interim report logged was TXX-6175 dated December 18, 1986.
We have completed a detailed review of vendor specifications and have identified twenty-seven components served by the component cooling water system that are affected. The components will either be qualified by analysis to accept the revised CCW inlet temperature (40 degree F) or have individual component or system modifications implemented.
Presently, all vendors have been contacted to ascertain the acceptability of the revised CCW inlet temperature. The status of evaluation by the vendors is as follows:
A)
Component / System Modification Required Vendor Component York Safety Chillers - Condensers Trane Vent. Chillers - Condensers Ingersoll-Rand Instr. Air Compr. - Jacket /
Aftercooler k
P S
4(X) North Olne Street t..H. h l Dallas. lexas 75201
- c. :s TXX-6323 March 9,-1987.~
'Page 2 of 2 B)
' Equipment Acceptable Without Modification.
Westinghouse Pos. Disp. Chg. Pump Hydraulic Coupling 011 Cir.
Sentry Equipment Process Sample Coolers Pass Sample Coolers Bingham Willmet Contmt. Spray Pmps. - Seal Clrs.
-Control Rm. Air Conditioners -
Condensers UPS Air Conditior. ors Condensers
~
C)
Completion of Evaluation Pending.
J. Dat Contmt. Spray Heat Exchangers Spent Fuel Pool Ht. Exchangers p
Westinghouse Miscellaneous Equip..
All analyses and modifications for Units 1 and 2 are scheduled for completion by the end of November 1987.
We will submit our next report no later than December 18, 1987.
Very truly yours, 4Jc. M W. G. Counsil By:
C.t, K-t, )
JohnA!. Beck
~
Vicd4 resident Nuclear Engineering GLB/gj c - Mr. E. H. Johnson, Region IV Mr. D. L. Kelley, RI - Region IV i
Mr. H. S. Phillips, RI - Region IV i
l 1
- -.