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PENTHOUSE MECHANICAL PLAN PHASE 1

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BHB !!'ROJECT # 2007.176.00

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,MECHANICAL PENTHOUSE PLAN

PHASE 1

Approved: Area Project Man,oger

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11--------1-=--:----ii � Revisions Date

VA FORM 08-6231A, 1AN 1990

2 3 4 I I 6 /

NOTES BY SYMBOL "0" __ _

1. /\fTER THE TEMPORARY 44/t,3 SUPPLY DUCT IS CONNECTED TO TiiE EXIS7NG SUPPL\

RISER (REFER TO NOTE BY SYt/BOL 4), REMOVE EXISTING AIR H/1NDlJNG UNIT, e&.=;, AND ASSOClMEO DUCT AS SHO\'IN.

2, TEMPORP,RILY CAP EXISTING RE!"URN DUCT AND FULLY EXHAUST RETURN /JR TO EXISTING !l[:-=..,.

3. TEMPORARY SERVICE ACCESS TO FLOOR. PROV1DE AND INSTALL 98" x 114" TAI.L OUTSIDE AIR LOUVER. COVER ENTIRE OPENING Wlfrl A LOUVER PER DETAIL X/1-H101 AT COMPl.f.110N Of PROJEL7'.

4. CONNECT NEW TEMPORARY 44/48 SUPPLY DUCT TO EXISTING SUPPLY DUCT RISER.

5. CONNECT NEW TEMPORARY 48/42 SUPPLY DUCT TO EXISTING SUPPLY OUCT RISER,

6. Ai--rER THE TEMPORARY 48/42 SUPPLY DUCT IS CONNECTED TO Tl-IE EXISTING SUPPLY

RISER (REFER TO NO'TE BY SYMBOL 5), REMOVE EXISTING AIR HANDLING UNIT, A�

ANO ASSOCL'.TED DUCT ftS SHOWN.

7.

8.

9.

10 .

11.

CONNECT NEW 30/32 RETURN OUC1 TO EXISTING DORMER LOUVER.

CONNECT NEW 30/32 EXHAUST DUCT TO EXISTING RETuRN PLENUM AND DUCT TO EXTERIOR LOUVER foS SHOWN.

NEW AIR HANDLING UNIT MOUNTED ON MANUFACTURER'S EQUIPMENT RAILS - MINIMUM

5".

MOTORIZED DAMPER IN OUTSIDE AIR DUCT TO BE INSTALLED IN AN ACCESSIBLE

LOCATION. DAMPER TO CLOSE WHEN AHU IN DE-ENERGIZED •

REMOVE C8UNG IN THIS AREA AND REUSE EXISTING MECHANICAL DUClWORK TO frlE GREATEST EXTENT POSSl81£ REMOVE AND REPLACE EXISTING DI.ICTWORK THAT WILL CONFLICT lllffH ROUTING OF NEW DUClWORl< MAINS SHOWN.

12. PROVIDE ANO INSTALL DUCT MOUNTED STEAM HUMIDIFlER. REFER TO SHEET 1--H202

FOR PIPING REQUIREMENTS.

Project Title ixlte

HVAC INFRASTRUCTURE

'UPGRADE

02/15/08

Projoct No.

549-209

Bulldlng

1• LocotJon

Number ��·· �L.!!__JIDro.wing No. 1

° S. Lcncaster Rd. 1-H201 a as, Texas 75216 Dw11• 2 ot BH!

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