Vfd Wiring: Esfr (Early Suppression Fast Response) - Bigass 4900 Manuel D'installation

VFD Wiring: ESFR (Early Suppression Fast Response)

WARNING: Improper installation can cause electric shock or damage to the motor and controller. A
qualified electrician should perform the installation.
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.
• The vertical distance from the fan to the sprinkler deflector must be at least 3 ft (91.4 cm).
• The fan must be interlocked to shut down immediately upon receiving a waterflow signal from the alarm
system.
The fire relay included with the fan is needed only if the fan will be installed in a building that has a fire sprinkler
system. The fire relay 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.
A contact closure across the digital input terminals 4 and 13A will result in fan shutdown. The included relay uses
a Normally Open (N.O.) contact as shown below. The relay coil must be energized by the FACP for fan shutdown.
Optionally, the normally closed (N.C.) 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.
ORG
BLU
Relay is mounted to the backside of the access cover.
Terminals 4 & 13A for
ESFR Relay
1 2 5 6 25 4 1 1 13A 13B 13C 1 4 30 1 6 1 7
1 2 5 6 25 4 1 1 13A 13B 13C 1 4 30 1 6 1 7
PE
U V W L1 L2
/T1 /T2 /T3
From Main FACP or
NAC Box if Applicable
YEL
PAM-SD
WHT RED
WWW.BIGASSSOLUTIONS.COM
L1
L2
L3
L3
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AUTO FWD
REV
M
R
An alarm condition will stop the fan
and issue an "F_EF" external fault
on the contoller display.
Relay Coil/Contact Details
White (-) C Blue
(X2)
NC Yellow
Red (X2) (+) NO Orange
Coil: 20–32 VDC @ 20 mA
RUN
F
STOP
23