Kaden KEX Series, Installer Manual

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3. KUN4 & KUN5
KUN4 & KUN5 heaters can be configured for adaptive zoning and / or Add-On Refrigerative Air Conditioning.
There are four 24 VAC relays on the PCB control module, which can be configured either for four zone motors, or
for four zone motors and an add-on refrigerative air-conditioning control, refer to Diagram 10 below.
Control Board
Grommet for
control cable
access
KUN5/4
24 VAC
ADD-ON
REFRIGERATION
D
A
B
C
24 VAC ZONE
DAMPER MOTOR
24 VAC ZONE
DAMPER MOTOR
24 VAC ZONE
DAMPER MOTOR
24 VAC ZONE
DAMPER MOTOR
Diagram 10
3.1 WIRING A DAMPER MOTOR TO THE HEATER’S CONTROL MODULE
a.
24 Vac Power Open / Power Close Damper Motor
ZONE B
ZONE A
N/C
0V
N/O
N/C
0V
N/O
Close
Common
Open
Damper Motor
24VAC
Power Open/
Power Close
RJ12
Connectors
b. 24 Vac Power Open / Spring Return Damper Motor
ZONE B
ZONE A
N/C
0V
N/O
N/C
0V
N/O
Active
Neutral
Damper Motor
24VAC
Power Open/
Spring Return
RJ12
Connectors
c. 240 Vac Power Open / Power Close Damper Motor
ZONE B
ZONE A
N/C
0V
N/O
N/C
0V
N/O
Close
Common
Open
Active
Neutral
240VAC Supply
Damper Motor
240VAC
Power Open/
Power Close
240VAC Relay
RJ12
Connectors
Diagram 11