50-EP102.pdf

3 5 6 7 8

F

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PANEL: 50-AHU5-EQ, CKT: 7,9,11

HUM-5

35A DISCONNECT

TO VFD EF-2A

ROOM 342A

ACCU-1025

EF-2BEF-2A

15A DISCONNECT

8 TO VFD EF-2B

ROOM 342A

15A DISCONNECT

BOND TO LIGHTNING

GRID

TO OIT ROOM 1025

50-EP102

FIRST FLOOR ROOF

THIRD FLOOR ROOF

SEE 50-EP104 FOR

WIRE AND CONDUIT SIZES

4 # 12 & 1 # 12G, 3/4 IN. C.

P A

N E

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-A H

U 5-

E Q

ACCU-AHU-5

A. INSTALL ELECTRICAL EQUIPMENT IN AHU-5 IN PHASE 1.

B. TERMINATE EF-2A AND EF-2B IN PHASE 2.

C. EXISTING EMERGENCY DEPARTMENT MUST STAY OPERATIONAL UNTIL NEW SECTION IS

CONSTRUCTED AND MADE OPERATIONAL.

D. CONTRACTOR TO FOLLOW VA SAFETY RULES AND LOCK-OUT-TAG-OUT RULES.

E. COMMUNICATE OUTAGES TO THE VA COR TWO WEEKS PRIOR TO PERFORMING THE

OUTAGE.

F. SEE DRAWING 50-EP100 TO CONTINUE POWER FEEDS FROM FLOOR BELOW (FEEDER

FROM 80-BUS-EHAA AND FEEDER FROM SES-2) INTO FUSED DISCONNECTS LOCATED

INSIDE AHU-5 VESTIBULE.

G. SEE DRAWINGS 50-E501, 2 FOR INSTALLATION DETAILS.

H. SEE DRAWING SERIES 50-E600 FOR ELECTRICAL PANEL SCHEDULES.

I. ELECTRICAL CONTRACTOR TO COORDINATE WITH MECHANICAL CONTRACTOR WHEN

INSTALLING ELECTRICAL EQUIPMENT IN VESTIBULE OF AHU-5, TO PREVENT

INTERFERENCE BETWEEN ELECTRICAL EQUIPMENT AND MAINTENANCE OF AHU-5

COMPONENTS.

1. INSTALL TWO 300A FUSED DISCONNECTS. TERMINATE FEEDERS FROM 80-BUS-EHAA

AND FEEDER FROM SES-2 INTO THE DISCONNECTS LOCATED IN AHU-5 VESTIBULE.

2. INSTALL ATS 50-ATS-AHU-5, AND LAND FEEDERS INTO ATS.

3. INSTALL PANEL 50-AHU-5EQ:

a. TERMINATE TO OUTPUT OF 50-ATS-AHU-5.

b. TERMINATE 480V POWER TO AHU-5 EXHAUST FAN AND SUPPLY FAN PER AHU-5

WIRING INSTRUCTIONS.

c. TERMINATE 480V POWER TO HUM-5 PER HUM-5 WIRING INSTRUCTIONS.

4. NOT USED.

5. SEE DRAWING 50-EP104 FOR WIRE AND CONDUIT SIZES. ROUTE POWER TO CONDENSER

ACCU-1025, FROM OIT ROOM 1025 EVAPORATOR TERMINATIONS IN CEILING BELOW. SEE

BLOCK LOGIC AND WIRING DETAILS ON DRAWING 50-EP104.

6. NOT USED.

7. IN ROOM 342A, INSTALL 15A BREAKER ON PANEL 50-EDB1, CKTS 2, 4, 6 , INSTALL 15A

480/277V DISCONNECT ON FAN. RUN POWER TO VFD EF-2A THEN RUN POWER FROM VFD

TO EF-2A ON ROOF. SEE DETAIL ON 50-EP401.

8. IN ROOM 342A, INSTALL 15A BREAKER ON PANEL 50-EDB1, CKTS 7, 9, 11. INSTALL 15A

480/277V DISCONNECT ON FAN. RUN POWER TO VFD EF-2B THEN RUN POWER FROM VFD

TO EF-2B ON ROOF. SEE DETAIL ON 50-EP401.

9. BOND FAN HOUSING TO LIGHTNING GRID AROUND ROOF. TERMINATE WITH 26,240 KCML

Cu STRANDED BARE CONDUCTOR.

10. INSTALL 15KVA 480/277V – 208/120V TRANSFORMER.

11. INSTALL PANEL 50-AHU5-ELEQ.

12. INSTALL DUCT SMOKE DETECTOR TEST STATION. REFER TO DRAWING 50-EF101 FOR

DETAILS.

13. INSTALL (10) 4 FT STRIP LIGHTS.

14. PROVIDE POWER TO SPLIT COOLING UNIT, DFSS-AHU-5 AND ACCU-AHU-5 FROM 35A 1-

PHASE, 208V BREAKER IN PANEL AHU5-ELEQ. FIELD RUN ¾ IN CONDUIT FROM PANEL TO

DFSS-AHU-5, AND FROM DFSS-AHU-5 TO ACCU-AHU-5 FOR ALL WIRES.

8' - 1"

44' - 7"

12' - 0"

9,000 LBS 15,100 LBS 13,400 LBS 9,500 LBS 8,900 LBS

11' - 8" 6' - 11" 5' - 11"

MERV 8 & 11

PRE-FILTERS

SERVICE VESTIBULE

RELIEF DAMPER

CHILLED

WATER

COOLING

COIL

MERV 8

FILTERS

EXHAUST

DAMPER

8x78

RETURN

DAMPER

18x100

AUTOMATIC TRANSFER

SWITCH

480Y/277V PANELTRANSFORMER

50-AHU-5 EQ

SERVICE VESTIBULE

SUPPLY DAMPER

HUM-5

270 LBS/HR

SA

3x2 SUPPLY

FAN ARRAY

MERV 14

FINAL FILTERS

SUPPLY

DISCHARGE

24"X80"

OA INLET

24x140

MERV 8 & 11

FILTERS

OA BYPASS

DAMPER

34x50

PLATE TO

PLATE HEAT

EXCHANGER

OA

EA

SHIPPING SPLIT (TYP.)

REFER TO STRUCTURAL DRAWINGS FOR

INTERMEDIATE SUPPORTS AT EACH

SHIPPING SPLIT.

INTEGRAL

MOTORIZED

DAMPER

(TYP.)

STEAM

HUMIDIFER

MANIFOLD

AHU5-ELEQ

120/208V

DUCT DETECTOR

TEST UNIT (RTSI) 300A DISCONNECTS

50-ATS

AHU5

3 2

AHU5-EQ

101112

AHU5-ELEQ-CKT2

AHU5-ELEQ-CKT3

AHU5-ELEQ-CKT1

(6) SUPPLY FAN VFD's (6) EXHAUST FAN VFD's

TWO ROWS

DFSS-AHU5

ACCU-AHU5

AHU5-ELEQ-CKT4, 6

o n e e ig h th i n c h o n e fo o t th re e i n c h e s o n e fo o t o n e a n d o n e h a lf i n c h e s o n e fo o t o n e i n c h o n e fo o t th r e e q u a rt e rs i n c h o n e fo o t o n e h a lf i n c h o n e fo o t th re e e ig h th s i n c h o n e fo o t o n e q u a r te r i n c h o n e fo o t

1 2 3 4 5 6 7 8 9

1 2 3 4 5 6 7 8 9

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Drawing Title Project Title

VA FORM 08-6231

Office of Facilities Management

U.S. Department of Veterans Affairs

STAMP

Date

Location

Building Number Checked Drawn Drawing Number

Project Number

BID SET

Approved: Director

Approved: Associate Director

Approved: Assistant Director

Approved: Assoc. Director for Patient Care Service/Nurse Executive

Approved: Deputy Assoc. Director of Patient Care Services

Approved: Chief of Staff

Approved: Deputy Chief of Staff

Approved: Chief of Engineering

Approved:

Approved:

ARCHITECT/ENGINEER/CONSULTANTS:

Bancroft Project No.

SAVAHCS, TUCSON, AZ 85723

3300 Dundee Road

Northbrook, IL 60062

T: 847.952.9362

04/30/2024ELECTRICAL - ROOF POWER PLAN EXPAND AND RENOVATE

EMERGENCY DEPARTMENT B50

50 WG BX

50-EP102

678-331

19-103

8-

E X

P A

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A N

D R

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O V

A T

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M E

R G

E N

C Y

D E

P A

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GENERAL NOTES

KEY NOTES

0 4' 8' 16'N 1/8" = 1'-0"

ELECTRICAL - ROOF POWER PLAN

NOT TO

SCALE

AIR HANDLING UNIT ELECTRICAL DETAILS

T

3/4" C

PANEL 50-AHU5-ELEQ DFSS-AHU-5 AND ACCU-AHU-5 2#10&1#10G, 3/4 IN C

TR 50-AHU5-EQ PANEL 50-AHU5-ELEQ 4#6&1#10G, 1 IN C

PANEL 50-AHU5-EQ AHU5 4#350&1#4G, 3 IN C

PANEL 50-AHU5-EQ TR 50-AHU5-EQ 4#10&1#10G, 3/4 IN C

50-ATS-AHU5 PANEL 50-AHU5-0EQ

(2) 3#3/0&1#3/0 G, 2-

1/2 C

80-BUS-EHAA, DISCONNECT

IN AHU-5 ENCLOSURE

50-ATS-AHU5 4#500&1#3G, 4 IN C

SES-2, DISCONNECT IN

AHU-5 ENCLOSURE

50-ATS-AHU5 4#350&1#4G, 3 IN C

80-BUS-EHAA

DISCONNECT IN AHU-5

ENCLOSURE

4#500&1#3G, 4 IN C

SES-2

DISCONNECT IN AHU-5

ENCLOSURE

4#350&1#4G, 3 IN C

FROM TO WIRING & CONDUIT

AHU-5 WIRING SCHEDULE

N

Revisions: Date:

BID SET 05/01/2023

ADDENDUM 1 04/30/2024