MCQUAY Service Guide Book Controller Configuration
34
SB125 Heatpump with Auxiliary Heater
To convert SB125 heatpump PCB to auxiliary
heater application, only need to add one heater
relay as shown below:
1. Place the JM Relay (240V/20A) on the
RY_HTR location
2. Solder all the relay pins.
Re
SB125 Heatpump with Auxiliary Heater
RY_HTR
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