About this file

This image is a mechanical engineering floor plan or HVAC (Heating, Ventilation, and Air Conditioning) schematic drawing for a multi-zone building. The detailed technical diagram includes comprehensive layout of air handling units (AHU-1-02 through AHU-5-02), multiple unit heaters (UH), exhaust fans (EF), and complex ductwork systems with various dimensions and specifications. The drawing features a comprehensive legend detailing symbols for mechanical components including fire dampers, smoke dampers, motorized dampers, butterfly valves, thermostats, and pipe connections for different systems like cold water supply/return, hot water supply/return, and low-pressure steam supply/return. The color-coded drawing indicates multiple mechanical systems and their interconnections across different building zones, with precise measurements and directional annotations for air flow, ductwork transitions, and floor penetrations.

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Text version

UP

DN

MECH

STAIR

ST4

ELEVATOR

MACH RM

38"x32"

DOWN WITH FIRE

DAMPER AT FLOOR

PENETRATION

16"x40"

DOWN WITH FIRE

DAMPER AT FLOOR

PENETRATION

38"x40"

DOWN WITH

FIRE/SMOKE DAMPER

AT FLOOR

PENETRATION

24"x46"

DOWN WITH FIRE

DAMPER AT FLOOR

PENETRATION

16"x40"

DOWN WITH FIRE

DAMPER AT FLOOR

PENETRATION

24"x46"

DOWN WITH FIRE

DAMPER AT FLOOR

PENETRATION

38"x32" DOWN WITH

FIRE DAMPER AT

FLOOR PENETRATION

24"x46" DOWN WITH

FIRE DAMPER AT

FLOOR PENETRATION

34"x24" DOWN WITH

FIRE DAMPER AT

FLOOR PENETRATION

FIRE DAMPER AT

FLOOR PENETRATION

20"x22" DOWN AND 20x28 UP IN SHAFT

16"x40"

DAMPER AT FLOOR

DOWN WITH FIRE

PENETRATION

40"x40" DOWN WITH

FIRE DAMPER AT

FLOOR PENETRATION

78"x20"

16"x28" DOWN

WITH MOTORIZED DAMPER

16"x28" DOWN

WITH MOTORIZED

DAMPER

"x x1

0" x1 6" x1

6" x1 6"

44x16 DOWN, TRANSITION TO

AHU-5

78"x20

"x

"x

66"x24"

66"x24"

36"x36"

36"x36"

36"x36" UP, TRANSITION TO

46"x26"

"x

66"x24"

66"x24"

36"x36"

36"x36" UP, TRANSITION

TO 46"x26"

36"x36" UP, TRANSITION TO

46"x26"

66"x24"

66"x24"

36"x36"

"x

66"x24"

66"x24"

60"x24"

40"x16"

24"x24"

46"x26"

46"x26"

46"x26"

46"x26"

36"x36" UP, TRANSITION TO

46"x26"

78"x20

DO

W

N

DO

W

N

DO

W

NDO

W

N

"x

DO

W

N

"x

DO

W

N

"x

DO

W

N

24"x24"

DOWN WITH FIRE

DAMPER AT FLOOR

PENETRATION

24"x24" DOWN WITH

"x

DO

W

N

16"x40"

DOWN WITH FIRE

DAMPER AT FLOOR

PENETRATION

36" DEEP OUTDOR

AIR PLENUM

36" DEEP RELIEF

AIR PLENUM

UH-10

FC

FF

D

SD

FFD

" D

EE

P

OU

TD

OO

R

AI

R

PL

EN

UM

FF

D

FFD

FFD

UH-11

FFD

FFD

FF

D

SD

SD

FF

D

UH-10

UH-2

CH

-3

UH-3

M M

M

UH-15

SD

FF

D

FFD

FF

D

FF

D

FF

D

FFD

FF

D

FFD

EF-2

FF

D

UH-14

SD

M

UH-13

M

FFD

36" DEEP OUTDOOR

AIR PLENUM

36" DEEP OUTDOOR

AIR PLENUM

(K)900

(K)900

(K)900

(K)500

(K)900

(K)900

24"x12" TRANSFER

OPENING

24"x12" TRANSFER

OPENING

10"x10" DOWN WITH

FIRE DAMPER AT

FLOOR PENETRATION

24"x24"

10"x10"

2½" EMERGENCY

CWS AND CWR

3"

3"

3" CWS AND CWR

3"

4"

2" NORMAL/EMERGENCY

CWS AND CWR DOWN TO

FOURTH FLOOR

CWS

CW

S

CWS

CWR

CW

R

CWR

2½" EMERGENCY

CWS AND CWR

2½" EMERGENCY

CWS AND CWR

TO FOURTH FLOOR

CWSCWS

CWRCWR

CWS

CWR

2"

2"

2½" LPR DOWN

TO FOURTH FLOOR

3"

4"

2"

2"

2½" LPR DOWN

TO FOURTH FLOOR

4"

3"

3"

6" LPS DOWN

FOURTH FLOOR

¾"

LPS

LP

S

LPS

LPS

LP

S

LP

S

LPS

LPR LPR

LPR

LP

R

LPS

1¼"

¾"

¾"

1½" HWS AND HWR DOWN

TO FOURTH FLOOR

¾"

1"

¾"

3/4" 1"

¾"

¾" 1¼"

1¼"

HWR

HWS

HWS

HWR

HWR

HWS

HWS

HWR

(L)500

(L)500 SD

DD DD DD DD

" D

EE

P

OU

TD

OO

R

AI

R

PL

EN

UM

" D

EE

P

RE

LIE

F

AI

R

PL

EN

UM

" D

EE

P

RE

LIE

F

AI

R

PL

EN

UM

UH-10

UH-11

EF-3 UH-12

DD DUCT MOUNTED SMOKE DETECTOR

OUTLET

BUTTERFLY VALVE

LINEAR DIFFUSER

ACCESS DOOR

AIR FLOW DIRECTION

PIPE UP

ELBOW DOWN

THERMOSTAT

FAN

M MOTOR OPERATED DAMPER

UNIT HEATER

SD SMOKE DAMPER

FFD FIRE DAMPER AT FLOOR PENETRATION

LOUVER

VOLUME DAMPER

SYMBOL DESCRIPTION

LEGEND

CWS COLD WATER SUPPLY

CWR

HWS

HWR

COLD WATER RETURN

HOT WATER SUPPLY

HOT WATER RETURN

LPS LOW PRESSURE STEAM SUPPLY

LPR LOW PRESSURE STEAM RETURN

UH-15

UH-14

EF-3

EF-4

M M

M

MM

M

M

AHU-4-02AHU-3-02

AHU-5-02

AHU-2-02

AHU-1-02

AIR HANDLING UNIT

File details come from the government source that posted it. Updated .