Have HVAC Questions? Ask an HVAC Expert for Answers
You can not bypass the module as the module is what controls what stage compressor runs in being a two stage compressor.
The solenoid is DC controlled. Five seconds after thermostat calls for Y2 the comfort alert sends a DC signal to the solenoid on compressor to bring in second stage
The two pin DC SOL connector provides a connection to the Copeland UltraTech second stage compressor solenoid. This solenoid is internal to the compressor. This 24VDC solenoid will not operate properly if 24VAC is applied to the compressor solenoid terminals.