View source for 3F0984-04, Clarifies Statement on Page 1-8,Item D of Safety Evaluation of Emergency Feedwater Sys Upgrade,Per NUREG-0737,Item II.E.1.1.Air Operated Valves Not in Use.Motor Operated Valves Will Be Determinated in Locked Open Position

{{Adams
| number = ML20098A499
| issue date = 09/20/1984
| title = Clarifies Statement on Page 1-8,Item D of Safety Evaluation of Emergency Feedwater Sys Upgrade,Per NUREG-0737,Item II.E.1.1.Air Operated Valves Not in Use.Motor Operated Valves Will Be Determinated in Locked Open Position
| author name = Westafer G
| author affiliation = FLORIDA POWER CORP.
| addressee name = Stolz J
| addressee affiliation = NRC OFFICE OF NUCLEAR REACTOR REGULATION (NRR)
| docket = 05000302
| license number = 
| contact person = 
| case reference number = RTR-NUREG-0737, RTR-NUREG-737, TASK-2.E.1.1, TASK-TM
| document report number = 3F0984-04, 3F984-4, NUDOCS 8409250053
| document type = CORRESPONDENCE-LETTERS, INCOMING CORRESPONDENCE, UTILITY TO NRC
| page count = 1
}}

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P,,.o..w. . e. . r September 20,1984 3F0984-04             '
Director of Nuclear Reactor Regulation Attention: Mr. John F. Stolz, Chief Operating Reactors Branch #4 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C. 20555

==Subject:==
Crystal River Unit 3 Docket No. 50-302 Operating License No. DPR-72 NUREG-0737, Item II.E.1.1 Safety Evaluation of Emergency Feedwater System Upgrade

==Dear Sir:==

Your letter of May 1,1984 transmitted the safety evaluation of the Emergency Feedwater System Upgrade (NUREG-0737, item II.E.1.1).
This letter is written to clarify a statement on page 1-8, Item d of the safety evaluation. That item states that the Emergency Feedwater System pumps discharge valves are air operated; are normally closed; and fail "open" on loss of air. CR-3 does not have air operated valves in the Emergency Feedwater System.
The four new Emergency Feedwater Initiation and Control (EFIC) valves are Target Rock DC solenoid operated control valves. The system is designed to inject emergency feedwater into both steam generators from either emergency feedwater pumps through DC powered valve paths powered from both A and B batteries. This design redundancy permits a single failure to occur and still have emergency feedwater capability. EFIC also will control four additional redundant DC motor operated block valves. The present AC motor operated valves will be de-terminated in the locked open position.
Sincerely,
            /
G. R. Westafer Manager, Nuclear Operations Licensing and Fuel Management EMG/feb             8409250053 840920 PDR ADOCK 05000302                                                                         hO P                            PDR                                                            \
GEN ERAL OFFICE 3201 Thirty fourth Street South e P.O. Box 14042, St. Petersburg, Florida 33733
* 813-866-5151}}