QQQ-20013605-M002.pdf

FEDERAL AVIATION ADMINISTRATION

DEPARTMENT OF TRANSPORTATION

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GENERAL NOTES:

1. EXISTING AH/CU-1 AND AH/CU-2 ARE REDUNDANT UNITS SERVING A CRITICAL SPACE. ONLY ONE UNIT

MUST BE REPLACED AT A TIME, WITH ONE UNIT OPERATIONAL AT ALL TIMES DURING CONSTRUCTION IN

ORDER TO MAINTAIN ROOM TEMPERATURE SETPOINT. CONTRACTOR MUST RUN TEST EACH UNIT FOR A

MINIMUM OF 24 HOURS AND VERIFY WITH THE FAA RESIDENT ENGINEER THAT THE UNIT IS FULLY

OPERATIONAL BEFORE REPLACING THE SECOND UNIT.

2. NO HOTWORK IS ALLOWED WHEN WORKING ON THE ELECTRICAL. COORDINATE WITH THE FAA RESIDENT

ENGINEER ONE WEEK IN ADVANCE FOR ELECTRICAL PANEL WORK, WHICH WILL REQUIRE A SHUTDOWN.

1 NEW AIR HANDLING UNIT, AH-1, MOUNTED ON STAND, WITH

SUPPLY AIR PLENUM AND GRILLE.

2 NEW AIR HANDLING UNIT, AH-2, MOUNTED ON STAND, WITH

SUPPLY AIR PLENUM AND GRILLE.

3 NEW CONDENSING UNIT, CU-1.

4 NEW CONDENSING UNIT, CU-2.

5 NEW REFRIGERANT PIPING, TYP.

6 NEW PIPE SUPPORTS, MINIMUM 6" ABOVE CONCRETE FLOOR.

7 PROVIDE 2 EACH - NEW THERMOSTATS ON EXISTING CONTROL

PANEL, HONEYWELL TH6320WF2003/U, OR APPROVED EQUAL.

8 NEW SAFETY SWITCH - NEMA 1, 2P, 3 WIRE, FUSIBLE, HEAVY

DUTY, 240VAC, 30A RATED; WITH 15A TIME DELAY FUSES.

SAFETY SWITCH MUST BE SQUARE D (SCHNEIDER ELECTRIC)

VH221N, OR APPROVED EQUAL. TYP. OF 2.

9 NEW SAFETY SWITCH - NEMA 3R, 2P, 3 WIRE, FUSIBLE, HEAVY

DUTY, 240VAC, 60A RATED; WITH 50A TIME DELAY FUSES.

SAFETY SWITCH MUST BE SQUARE D (SCHNEIDER ELECTRIC)

VH222NRB, OR APPROVED EQUAL. TYP. OF 2.

CONSTRUCTION NOTES:

10 NEW CONDENSATE DRAIN PIPE, WITH TRAP, PIPE TO OUTSIDE.

TYP. OF 2.

11 EXISTING AND EQUIPMENT PAD, 60" X 60" X 4"

12 NEW SUPPLY AIR PLENUM, 22 GAUGE SHEEETMETAL, 1" DUCT

LINER, 21X21 OUTSIDE DUCT DIMENSIONS, 1" FLANGE IN ON

BOTH OPENINGS. SECURE TO AIR HANDLING UNIT.

13 AIR HANDLING UNIT STAND - FABRICATE OUT OF 2"X2"X1/8"

ANGLE IRON, WELDED, BASE DIMENSIONS MUST BE SAME AS

AIR HANDLING UNIT DIMENSIONS. HEIGHT OF STAND MUST BE

22". PAINT TO A BRONZE ANODIZED COLOR. SECURE UNIT TO

STAND USING 14"X1"X

8" FLAT IRON WELDED ONTO THREE

SIDES OF STAND, EXCEPT FROM FRONT FILTER ACCESS AREA.

14 SUPPLY AIR GRILLE, DOUBLE DEFLECTION, 19"X19" NOMINAL

DUCT SIZE, ALUMINUM, TITUS 272FL, OR EQUAL.

15 TIE DOWN SUPPLY PLENUM AND UNIT ASSEMBLY TO WALL

USING 2"WIDE X 1/8" FLAT STEEL, 4 STRAPS PER UNIT. TYP.

16 EXISTING SUNSHIELD COVERING WITH OPENING ABOVE

CONDENSING UNIT

EQUIPMENT ROOM

ELECTRONIC

EQUIPMENT

AUTOMATIC LOUVER

AUTOMATIC LOUVER

GENERATOR ROOM

POWER

PANEL 'B'

T

T

EXISTING CONTROL

PANEL

POWER

PANEL 'A'

(FOR REF. ONLY)

AH

AH

CU

CU

REUSE EXISTING

WALL PENETRATIONS,

SEAL EXTERIOR WITH

SILICONE, AND MAKE WATER

TIGHT., TYP.

3 4

8 8

11 1116 16

AH

CU

EXISTING CONCRETE

PADS

SUPPLY

CEILING

RETURN

EXISTING WIREWAYS,

TYP. INDOOR AND

OUTDOOR

EXISTING SUNSHIELD

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04/01/2024

MGR: OPERATIONS SUPPORT

NL

BARSTOW

QQQ-20013605-M002

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AIR CONDITIONING REPLACEMENT PROJECT

MECHANICAL PLAN & SECTION

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INFRASTRUCTURE

ENGINEERING SERVICES

ATO - TECHNICAL OPERATIONS WESTERN SERVICE AREA

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DRAWING PRODUCED ON WSA MICROSTATION SYSTEM

PROJECT ENGINEER

20013605

CA

SCALE: 3/8" = 1'-0"

MECHANICAL PLAN

M002

A

SCALE: 1/2" = 1'-0"

SECTION

M002

B

B

M

2' 0 2' 6'

SCALE: 3/8" = 1'-0"

4'

1' 0 3' 5'

SCALE: 1/2" = 1'-0"

1' 2' 4'

QQQ-20013605-M002