Adaptive Zoning And Add-On Air Conditioning; Options; Damper Motor Connections - Rinnai Brivis StarPro SP623UN Installation Manual

12.1 OPTIONS

SP universal and BX5 series heaters can be configured for 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, as shown in Diagram 30.
Diagram 30. Zoning/Add-on Connections - NG-3 PCB
Note: Refer to the Add-On Cooling brochure for further information. For ZonePlus configuration, please refer to the ZonePlus
Installation manual.

12.2 DAMPER MOTOR CONNECTIONS

All SP and BX5 series gas ducted heaters come with four RJ12 socket connectors preconfigured for Belimo
24V damper motors.
RJ Socket Connections
The plastic cover on the PCB includes moulded cut-outs to enable access to the RJ12 socket. For each socket to
be used, press out and remove the cut-out and connect the RJ plug from the Belimo
If not a Belimo damper motor confirm suitability of the terminal on the damper motor before connecting to the RJ12
socket on the heater PCB. The RJ12 socket in Diagram 31 contains six terminal wires, the left two are connected
to Normally Open (N/O) on the 3-way terminal block, the middle two are connected to '0V', and the right two are
connected to Normally Open (N/C). Check the installation manual accompanying the damper motor to determine if
the RJ12 socket on the heater PCB is suitable.
Diagram 31. RJ12 socket detail on heater PCB
Diagram 31 details the Normally Closed (N/C), Zero Volt (OV) and Normally Open (N/O) connections for the RJ12
socket and terminal block connections for zones A, B, C and D on heater PCB.
Rinnai
12. ADAPTIVE ZONING AND ADD - ON AIR
N/O N/C
0V
N/C
0V
N/O
41
CONDITIONING
24 VAC
ADD-ON
REFRIGERATION
D
24 VAC ZONE
DAMPER MOTOR
24 VAC ZONE
C
DAMPER MOTOR
24 VAC ZONE
B
DAMPER MOTOR
A
24 VAC ZONE
DAMPER MOTOR
damper motor.
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Ducted Gas Heater IM
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