ML22194A386

2 to Updated Final Safety Analysis Report, Figure 9.4-35, Sheet 1, Rev. 0, System Flow Diagram Eb HVAC - Electrical and Battery Room

ML22194A386
Person / Time
Site:	Summer
Issue date:	06/27/2022
From:	Dominion Energy South Carolina
To:	Office of Nuclear Reactor Regulation
Shared Package
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References
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Download: ML22194A386 (1)

Text

14 I 13 I 12 I 11 I 10 I 9 I 8 7 I 6 I 5 I 4 I 3 I 2 I 1 n

SYSTEM OPERATING DATA NOTE 10 HVAC UNIT OPERATION NOTES:

A. ALL THREE WALL MOUNTED HVAC UNITS ARE CONTROLLED BY ITC79211 (TEC40 LEAD/LAG THERMOSTAT).LEAD LAG CONTROL ALLOWS ALL UNITS TO OPERATE WITH BALANCED RUN TIMES.

r('--. AIR FLOW AIR TEMP. r----------------------------, UNITS ARE ROTATED EACH WEEK FROM LEAD TO LAG TO BACKUP UNIT.LEAD UNIT STARTS FIRST WHEN ROOM TEMP.SETPOINT IS EXCEEDED.IF TEMPERATURE CONTINUES TO L.!!,,/ CFM

• F INCREASE/DECREASE AN ADDITIONAL 2 DEG F THE LAGGING UNIT IS STARTED.IF TEMPERATURE CONTINUES TO INCREASE/DECREASE YET AN ADDITIONAL 2 DEG F THE BACKUP UNIT IS A 1---,l;,........1---....-!1:ll 2 400 65/77 '"'e,u....."'-1-__:4~5""/q~llil'-l-----1 : ECR50793C 11 STARTED. A I <DIESEL BACKED) WALL MOUNT HVAC UNIT XUP5100-AH ~-------------~ 8. ONLY ONE HVAC UNIT IS ALLOWED TO HEAT AT A TIME.

I NOTE E COMPRESSOR 9HP c. VENTILATION AIR INTAKE IS ONLY ALLOWED ON THE LEADING UNIT.

I INDOOR BLOWER l/2HP,1070RPM D. BLOWERS ARE CONTINUALLY RUNNING ON LEADING AND LAGGING UNITS.

I. <1001/. VENT AIR) CONDENSER FAN 3/4HP,1075RPM E. XUP5100 AND XUP5101 ARE DIESEL BACKED. XUP5100 WILL AUTOMATICALLY VENTILATE WHEN POWER IS PROVIDED BY DG.

I 400 CFM HEATING COIL 15 KW F.

I OUTSIDE VOLTAGE 460V WHEN DE-HUMIDIFYING THE BACKUP UNIT IS STARTED IN THE HEATING MOOE UNTIL HUMIDITY DROPS BELOW SETPOINT. DE-HUMIDIFICATION IS DISABLED IF THE LAGGING UNIT IS I ----,c-VENTILATIONtDRAIN t ~--~-------~ COOLING. G. REFERENCE 208-004 SHEETS AH417, AH418 AND AH419 FOR ADDITIONAL HVAC UNIT CONTROL LOGIC.

I I I AIR INTAKE H. UPON SHUTDOWN THERE IS A 150 SEC.DELAY ON BREAK TIMER THAT PREVENTS THE IMMEDIATE RESTART OF THE COMPRESSOR.

B I VENT IF POWER IS LOST TO THE HVAC UNIT THERE IS A 135 SEC.DELAY ON MAKE TIMER THAT PREVENTS IMMEDIATE RESTART OF THE COMPRESSOR. I. B I

I I 331/.

I RF cc HC I I l 400 CFM l 400 CFM

- I I

I I

I !c;c:]P5387 C I i.::::;JAH421B C I

I UP TO 1400 CFM 1400 CFM ! 1 I t IF NOT VENTILATING 1 ~sl FIRE SERVICE FAN DISABLE I I FAN RUNNING

• NOTE3 I I /."-_ _ 1/6 HP

- I I ~.--- RPM 169. (VARIABLE SPEED I I 120 v FANMOTORl I I I I. G FC D I ra FIRE SERVICE HVAC UNIT DISABLE: 1------i/1----+-:) 1-----1: 2 J. D I, NOTE 3 I (1001/. VENT AIR)

I ~

1---- -----------------------------------~ I XDP5205-AH ECR50793C XFN0201-AH I ~ I ~ P5387

- I I 9 AH421A -

I NOTE A I r::'.":I FIRE SERVICE GENERAL NOTES:

I I FAN RUNNING l.!:,.::J FANN&ti~BLE 1. ONLY XUP5100 AND XUP5101 ARE DIESEL BACKED.

I I A._ 1/6 HP 2. ALL FANS ARE BACKED BY EB DIESEL GENERATORS.

I I V - - - RPM 1697 <VARIABLE SPEED 3. IF A FIRE IS DETECTED IN ELECTRICAL OR BATTERY ROOM ALL HVAC E I I 120 v F ANMOTORl UNITS AND VENTILATION FANS ARE STOPPED. E I I 4. IF A FIRE IS DETECTED IN DG ROOM ALL FANS ARE I EB ELECTRICAL ROOM I II STOPPED ANO DG IS STOPPED.

I I G FC...--u----i_---,: 2

• 5. ALL CONTROL RELAYS ARE LOCATED IN XPN5387.

I EL. 436'-6' I I / Ii----+-:) 6. FAN CONTACTORS ARE LOCATED IN XPN5391.

I (1001/. VENT AIR) 7. BATTERY ROOM DOES NOT HAVE TO BE KEPT BETWEEN 60 AND 77 I : XFN0200-SSW-1-AH ~ \\ \\ DEG F AFTER THE BATTERIES HAVE DISCHARGED I I 1XDP5204-AH\\ ECR50793C <AFTER DG HAS STARTEDl.ACCEPTABLE EMERGENCY I '-------------7 XFN0200-AH NOTE A TEMPERATURE RANGE INCREASES TO 54-95 DEG F.

I I 8. HVAC ALARMS ARE INDICATED ON XPN5387.GENERAL 'EB HVAC F F I I LOW FLO~ TROUBLE ALARM' IS INDICATED ON TEMP MONITORING I INoTEu-~ NOTE a SYSTEM AND ANNUNCIATED IN MAIN CONTROL ROOM.SEE I fD I LOW FLOW 208-004 SH.AH422 PAGE C.

I 9. REFERENCE 208-004 SHEETS AH417 THROUGH AH423 FOR I EB BATTERY ROOM ~ ALARM __:IG~ HVAC UNIT AND FAN CONTROL LOGIC AS WELL AS ALARMS.

- I EL. 436'-6" 10. REFERENCE DC07690-010 ISFSI ELECTRICAL BUILDING I l 400 CFM !: AN_ RUNNIN~ HVAC CALCULATION FOR ADDITIONAL INFORMATION.

I 11. LOW AIRFLOW ALARMS HAVE A 20 SECOND ON DELAY TO I PREVENT FALSE ALARMS WHEN THE FANS ARE STARTED.

I I G I G I

I I XFD5402-AH I

- I I I UP TO 1400 CFM UP TO 1400 CFM t 1400 CFM I ' IF NOT VENTILATING 1400 CFM l I IF NOT VENTILATING I

I H I H I

I

'1---+-----1' 1.

RF cc HC. RF cc HC 1)

- 331/. 331/.

VENT VENT,,,__,_ _ __.._ __ _.~,._/ _ _._ ___,__~r---~

J J ECR50793C 400 CFM -~/ l I / WALL MOUNT HVAC UNIT 400 CFM - I DR AIN I WALL MOUNT HVAC UNIT ~ XUP5101-AH FSAR Figure 9.4-35 SH. 1 0001/. VENT AIR) DRAIN COMPRESSOR 9HP (1001/. VENT AIR) COMPRESSOR 9HP (DIESEL BACKED)

I OUTSIDE VENTILATION / INDOOR BLOWER 1/2HP,1070RPM INDOOR BLOWER 1/2HP,1070RPM NOTE E

- I AIR INTAKE CONDENSER FAN 3/4HP,1075RPM ~~RTSi~iA::NTILATION CONDENSER FAN 3/4HP,1075RPM SOUlll CAROI.IIIA ELECIRIC & CAS COUPAIIY

• EMERGENCY CONDITION EXISTS I HEATING COIL 15 KW HEATING COIL 15 KW ALL SYSTEM COMPONENTS ARE DRAl\\1NG Cl.ASS 'v1RGII. C. SlJllt£R NUClEAR STAIIOI WHEN NORMAL POWER IS LOST AND VOLTAGE 460V VOLTAGE 460V NON-NUCLEAR SAFETY RELATED BUILDING SERVICE SYSTEM FLOW DIAGRAM LEGIBILITY I DG IS PROVIDING POWER I ECR50793C 1 ~------,~----~

I XUP5102-AH I I EB HVAC - ELECTRICAL ANO BATTERY ROOM K I I I DESIGN ENGINEERING K SYSTEM DESIGN DATA I I I ~~ V. C. QJUMER kUC'l.EAR STA'ttOk.£kKIMSVIU! S.. C.

AREA AIR AREA AIR AREA EMERGENCY"' I _________________________ i _________________________ *---------.--1,.

• Cl<l:0<£D U:-AI.

rv FLOW CFM TEMP. 'F AIR TEMP. 'F '* JMR - MGR RS 2 400 65/75 54;q5 0 >/3/1! JMR Mr.'1 '"' -D-912-192 I 0 NO. OATt BY REVISION CKD. B LE.......

I 400 60/77 54/',5 NOTE 10 VAL SHI........

I I I 5' I 151 I 20' f *--

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