MCQUAY Service Guide Book
Controller Configuration
33
6.0 CONVERSION CONFIGURATION
6.1 Auxiliary Heater Conversion
U1.5 Heatpump with Auxiliary Heater
To convert the standard U1.5 heatpump PCB to
auxiliary heater application, the following
components need to be added onto the PCB:
1. Heater
relay
(240V/20A)
2. Transistor,
2SC945
3. Diode, IN4003
Board U1.5 Heatpump with Auxiliary Heater
Heater Relay
(RLY 8)
Transistor
(Q3)
Diode (D17)
Содержание 5MDS
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