Installation Guide
23
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BIG ASS FAN 4900
Electrical Installation (cont.)
Wiring: ESFR (Early Suppression Fast Response)
WARNING: Wait three minutes after disconnecting before servicing!
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should perform the installation.
ATTENTION: If installing the fan in the United States, the fan must be installed per the following National Fire Protection
Association (NFPA) guidelines:
• The fan must be centered approximately between four adjacent sprinklers.
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integrates the fan with the sprinkler system and shuts down the fan upon receiving an alarm signal from the system. If the building in
which the fan will be installed has a sprinkler system, you must install the relay according to the instructions below.
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relay contact can be used. The relay coil must remain energized by the FACP for fan operation. This would be considered a fail safe or
fail open wiring arrangement. Two additional relay coil leads are provided to facilitate supervision pass-through where required.
Relay is mounted to the
backside of the access cover.
An alarm condition will stop the fan and
issue an “F_EF” external fault on the fan
controller’s display.
U
/T1
V
/T2
W
/T3
PE
L1 L2 N
1 2 5 6 13A13B13C14 30 16 1725 4 11
1256 13A13B13C1430161725 4 11
PAM‐SD
WHITE
RED
Y
E
L
L
O
W
BLUE
ORANGE
M
RF
RUN
STOP
AUTO FWD
REV
Relay Coil/Contact Details
White (X2) (-) C Blue
NC Yellow
Red (X2) (+) 12 2UDQJH
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7HUPLQDOV$
for ESFR Relay
From Main FACP or
NAC Box if Applicable