ML20113G492
| ML20113G492 | |
| Person / Time | |
|---|---|
| Site: | Byron, Braidwood, 05000000 |
| Issue date: | 01/09/1985 |
| From: | Tramm T COMMONWEALTH EDISON CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| 9606N, NUDOCS 8501240373 | |
| Download: ML20113G492 (2) | |
Text
g A
h Commonwealth Edison
^^' ") One First N* tionit Plus, Chicigo. Ithnois r
/ Address Rep!y to: Post Office Box 767 Chicago. Illinois 60690 -
January 9, 1985 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory. Commission Washington, DC 20555
Subject:
Byron Generating Station Units 1 and 2 Braidwood Generating Station Units 1 and 2 Ventilation System NRC Docket Nos.' 50-454/455 and 50-456/457
Dear Mr. Denton:
This letter provides an advance copy of a revised page 9.4-97 for.the Byron /Braidwood FSAR.
The capacity of the auxiliary building exhaust fans is being revised because of a late design change.
The NRC is being notified at this time because this fan capacity is being verified in preoperational testing.
We do not believe that this change raises any safety questions.
This page will be incorporated into the FSAR at the earliest opportunity.
Corresponding changes will be made_elsewhere
'in the--FSAR where_necessary.
Please direct any further questions regarding these matters to this office.
One signed original and fifteen copies of_this letter and-the enclosures are provided for your review.
Very truly yours, M"
i T. R.'Tramm Nuclear Licensing Administrator 1m cc:. Byron Resident Inspector
. hbbo O!b 9606N P
i
F kr B/B-FSAR
-AM WUmsal 35 MAY 1982 TABLE 9'.4-9 (Cont'd)
'l NUMBER, TYPE, QUANTITY, NAME OF EQUIin3NT AND NOMINAL CAPACITY Efficiency (% by ASHRAE 52 ' 68 g
Test Std.)
80%
i,
Media Glass Fiber Y.
HEPA FILTERS OVAL 2FA-L Type Nuclear Grade Quantity 12
~
Capacity (cfm) 18,033 Pressure Drop:
Clean (inches water) 0.83 Dirty (inches water) 2.00 Z.
EXHAUST FANS OVAO2CA-D Type Vaneaxial
. Quantity 4
Drive Direct Capacity (cfm) 17;,340 / 5 7,000 Total Pressure (inches water) 12.15 AA.
HVAC CHILLER ROOM AREA OVA 02S, OVA 035, OVAOSS COOLERS-OVA 04S
( )
1.
Cooling Coils
( )
~
Type Chilled water Chilled
(
)
water
(
Quantity 3
1
<).
Air Quantity (cfm) 1200 800
(
Cooling Capacity (Btu /hr) 28,600 20',100
()
Water Quant 3'.y (gpm) 5.4 3.8
(
C
)
4 e
9.4-97
.