1-8
Wire connection to the controller board is as show in the wiring diagram on the respective terminal box.
The standard controller board comes with a VALVE jumper and a HEAT jumper. The system must be configurated as the
jumper selection listed below:
HEAT Jumper
VALVE Jumper
Cooling Mode & Valve Application
x
P
Cooling Mode & Valveless Application
x
x
Heatpump Mode & Valve Application
P
P
Heatpump Mode & Valveless Application
P
x
Example: If the unit is running “Heatpump Mode & Valveless Application”, remain the HEAT jumper while remove the
VALVE jumper.
FWC03/04/06/07C (without controller)
FCU 1
FCU 2
FCU 3
FSC
X2
X1
Chiller
FL FM FH
L
N
!
There must be an all pole
disconnection in the supply mains
with a contact separation of at
least 3mm.
All power line must be from the
same phase.
ELECTRICAL WIRING CONNECTION
TH
220-240V/~/50Hz or
208-230V/~/60Hz
TH
X3
220-240V/~/50Hz or
208-230V/~/60Hz
220-240V/~/50Hz or
208-230V/~/60Hz
TH
FSC
FSC
FL FM FH
L
N
FL FM FH
L
N
L
N
L
N
L
N
FL
Fan Low
FM
Fan Medium
FH
Fan High
L
Live
N
Neutral
FSC
Fan Speed Controller
X1, X2, X3
Relay (220 ~240V, 10A)
TH
Thermostat
FCU 1
FCU 2
FCU 3
FSC
X2
X1
Chiller
SH
H
M
L
N
TH
220-240V/~/50Hz or
208-230V/~/60Hz
TH
X3
220-240V/~/50Hz or
208-230V/~/60Hz
220-240V/~/50Hz or
208-230V/~/60Hz
TH
FSC
FSC
SH
H
M
L
N
SH
H
M
L
N
L
N
L
N
L
N
SH
Fan Super High
H
Fan High
M
Fan Medium
L
Fan Low
N
Neutral
FSC
Fan Speed Controller
X1, X2, X3
Relay (220 ~240V, 10A)
TH
Thermostat
FWC09/11/12/14/16C (without controller)
!
There must be an all pole
disconnection in the supply mains
with a contact separation of at
least 3mm.
All power line must be from the
same phase.
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