ML21209A364

1 to Updated Final Safety Analysis Report, Chapter 9, Figure 9.4-36, Building Service System Flow Diagram Aeb DG2 Room HVAC

ML21209A364
Person / Time
Site:	Summer
Issue date:	04/30/2021
From:	Dominion Energy South Carolina
To:	Office of Nuclear Reactor Regulation
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References
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Download: ML21209A364 (1)

Text

14 13 12 11 10 9 8 7 6 5 3 2 1 SYSTEM OPERA TING DATA NOTE 7 FAN OPERATION NOTES:

AIR FLOW AIR 'Ta.4P.

rt> 1.

2.

ALL FANS ARE BACKED BY EB/AEB DIESEL GENERATORS.

IF A FIRE IS DETECTED IN AES OG ROOM ALL FANS ARE STOPPED AND AEB DG IS STOPPED.

A ~2,--+"" 3. FAN RUNNING STATE IS SHOWN ON XPN5387.FAN CONTROL RELAYS ARE LOCATED IN XPN5387. A 3 4. FAN CONTACTORS ARE LOCATED IN XPN5607.

5. FAN LOW FLOW ALARMS ARE INDICATED ON XPN5387. GENERAL 'EB HVAC TROUBLE ALARM' IS INDICATED ON TEMP MONITORING SYSTEM AND ANNUNCIATED IN MAIN CONTROL ROOM.SEE 208-004 SH.AH422 PAGE C.

6. REFERENCE 208-004 SHEETS AH422 THROUGH AH423 FOR FAN CONTROL LOGIC AS WELL AS ALARMS.

AEB DIESEL GENERATOR ROOM 7. REFERENCE DC076'l0-010 ISFSI ELECTRICAL BUILDING HVAC CALCULATION FOR ADDITIONAL INFORMATION.

,-----T----------------7 EL. 436'-6'

8. VENTILATION FAN XFN0206 OPERATES AT ALL TIMES.IF A LOSS OF FLOW IS DETECTED AN ALARM I I I IS GENERATED AND ADDITIONAL FANS ARE STARTED AUTOMATICALLY.

'l. XFN0208 AND XFN020'l START AUTOMATICALLY WHEN XEG0130 IS STARTED.XFN0207.XFN0226 AND I I I XFN0227 WILL START AUTOMATICALLY IF DG ROOM TEMPERATURE INCREASES ABOVE 80DEG F AND I 3/4 HP I 10.

DG IS RUNNING.

LOW AES DG ROOM VENTILATION AIR FLOW ALARM LIGHT INDICATED ON XPN5387.

B RPM 860 B

I 460V I 11, COMMON LOW AEB DG COOLING FLOW ALARM LIGHT ON XPN5387

12. LOW AIRFLOW ALARMS HAVE A 20 SEC.ON DELAY TO PREVENT I --- L--------------7 FALSE ALARMS WHEN THE FANS ARE STARTED.

I OUTSIDE AIR INTAKE 4 _..,. 7000 CFM (503/4 RADIATOR COOLING SUPPLY) I I

I F~!!:i_OPE~ I fNOTE 3 ~

I I LOW FLOW ___ /,\_ I

!NOTES-~

C  !LOW FLOW L I

I C tLARM LIGHl'-0 t.:NOTE

_____II -V _ r-----r-------------------------------7 I

.....J I I I 1

3/4 HP FIRE SERVICE FAN AND DAMPER I RPM 860 460V 8 FS DISABLE NOTE2

~--~

I ~~-~ l------1ssl OUTSIDE AIR 1 ,_ ______ _ P5387

---i.::.:'.J AH423C g~~~~TOR XEG0102

_..,. 7000 CFM (503/4 RADIATOR COOLING SUPPLY> DIESEL D INTAKE GENERATOR D XEG0102 is~w\ RUNNING SIGNAL r---

FAN IN OPE~.

NOTE 3 I LOW FLOW~

L

,----J XDP5211-AH XFN020'l-SSW-1-AH ECR50870A NOTE 'l XFN0209-AH I DIESEL DRIVEN

_..,.~CFM (100% RADIATOR COOLING EXHAUST)

XEG0102-SSW-1-AH 1NcifE5- ~ 4 RADIATOR

! LOW FLOW L EXHAUST FAN r ALARM ~G_I-IT0 r- - _ --§]t~~~~B NOTE 'l NOTE 11 ~ L____ - ---,- LOW_!:L£!¥ ~

L- - - - - - NOTE 5

.....J

,-----i-----------------------------,-,--- ~rn~BE~Rv~gT::N AND DAMPER i LOW FLOW~

E I ------------7-----7 I

I

,-..-...~

I I I I r----y 1

I ALARM LIG.f,T/.'-,_

NOTE 11 E

I  :{pt Hls0 I I I lfAN  !!:!.. OPE~ NOTE 3 I 115V I I I ~

I I r---"~ I I 2 HP I FC RPM 1725 OUTSIDE AIR INTAKE

_..,. 3000 CFM (50% ROOM COOLING SUPPLY) I 460V I I

I FAN!!:!_.~~

f NOTE 3 ~ ECR50870A NOTE 'l I 3 _..,.~CFM <1003/4 ROOM COOLING EXHAUST>

r j XFN0226-AH I r l LOY!_FLOW ~ I XFN0226-SSW-1-AH I 1 NOTE 5 .. "-1/, I XOP520'l-AH I LOW FLOW L I XFN0207-SSW-1-AH f-~A~~G~ I I F~ !!:i_ <!'._E~

NOTE 9 I XFN0207-AH

- - - - -I NOTE3 ~

NOTE 1 1 ~

L ------ I f fcsl P5387 I I LOW_£LOW~ YAH423A I r NOTE 5 1/2 I I I LOW FLOW iFs7 FIRE SERVICE FAN

,-----r---------------------------~ LALARM~G~

I NOTE 1 1 ~

T DISABLE NDTE4 G I I I '-------------' G I

I l/3 HP I FAN IN OPER.

(VARIABLE I ~~

115V I L 1/4 HP SPEED FANMOTOR)

RPM 1725 I ~,--, I 120V OUTSIDE AIR FC I

.. 3000 CFM (503/4 ROOM COOLING SUPPLYl INTAKE f--+---i/f---,--+- I .. 1050 CFM (1003/4 VENTILATION AIR)

I F~!!:i_OP~

f NOTE 3 --V XOP5 13-AH J~w\ ECR50870A NOTE 9 I

I XFN0206-SSW-1-AH I X N0 27-AH NOTE 8 H lLOWFLOW~ I XFN0227-SSW-1-AH I I XOP5208-AH XFN0206-AH H 1 N6'FE"'"5 ~ I ------------1 I LOW FLOW L I I f- ALARM ~G~

I I NOTE

,,---v I L~l\'._!'.LOW . ~

I NOTE5~

I LOW FLOW;<;>

OUTSIDE AIR INTAKE _..,. 1050 CFM (1003/4 VENTILATION AIR) LALARM ~GHT L NOTE 10 XDP5214-AH J J FSAR Figure 9.4-36 SOIJlll CAROLINA ElECIRIC & GAS COMPANY ORA'MNG Cl.ASS VIRGIL C. SUMMER NUQEAR STATION l£GIBILITt 1 BUILDING SERVICE SYSTEM FLOW DIAGRAM AEB DG2 ROOM H\IAC K SYSTEM DESIGN DATA NOTE 7

• EMERGENCY CONDITION EXISTS WHEN NORMAL

....6

,. $CNM OOW'Nn' DESIGN ENGINEERING V, C. SUMMER NUa.£AR STATION JOl<INSVILLE S. C.

K AREA AIR FLOW CFM AREA AIR AREA EMERGENCY*

TEMP. F* AIR TEMP. F* POWER IS LOST AND DG IS PROVIDING POWER ,. MADE CHECKED

,. LE APPROVAL NOTE 1 1 4 28 15 JTS RS JMR MGR RS 1 1050/21050 'l/1 19/122 0

NO.

2 3 15 JMR DAlE BY REVISION RS LE CKO. 8 APPR<NAf.

. """' D-912-193

................ 1

$Hf. NUMBER REV I I I I I 5* 10' 15' 20*