Temperature Sensor Inputs Microprocessor Controller Unit
Liquid Injection Control High and Low Pressure Control
Current Abnormality Coils Compressor Selector Rotary Switch
(not to be tampered by User
Digital Switching Power Supply High Voltage Output
3 Phase Protection Module
Power and Thermostat Input
Fig. 18 E2 Unit Controller Board – Layout and Major Components
Please refer to Fig.9 together with the ZX Wiring Diagram (for the connection points) in
Addendum 17.2 at the end of this Manual.
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