BIG ASS FANS 4900 Installation Manual page 29

Wiring: ESFR (Early Suppression Fast Response)
WARNING: Wait three minutes after disconnecting before servicing!
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.
•
•
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.
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.
for ESFR Relay
1 2 5 6 25 4 11 13A13B13C 14 30 16 17
1 2 5 6 25 4 11 13A13B13C 14 30 16 17
PE
U V W L1 L2
/T1 /T2 /T3
From Main FACP or
NAC Box if Applicable
PAM‐SD
WWW.BIGASSFANS.COM
BIG ASS FAN 4900
N
Relay Coil/Contact Details
C Blue
NC Yellow
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AUTO FWD
REV
M
R F
An alarm condition will stop the fan and
issue an "F_EF" external fault on the fan
controller's display.
23
RUN
STOP