EMS system and Dometic A/C
I finally figured out that with the EMS I can wire it so when 30amps is approaced, the EMS can drop JUST the A/C compresspr and leave the fans running. Currently the system drops the entire A/C compressor and fans. Rexhall wired the 120 through the EMS instead of the thermostat wire for the compressor activation. Question is Does anyone know which wire on a Dometic digital Comfort Control Center is the one to control the compressor. The Dometic system uses 4 onductor phone RJ-11 wiring to control the A/C from the thermostat. One of the four would need to be cut and routed through the DC relay in the EMS. That much I know from EMS manual.
Dometic doesn't know which wire controls the compressor in the four wire circuit. I figure it's not the red or black wire and can't tell from the Dometic manuals. Does anyone have a coach in which the EMS only drops out the coach A/C on overload, If so please let me know coach mfg. and model and I'll research further
2005 30' Rexhall Vision, W-22 chassis, 19.5 tires, 208'' factory WB, 6000 CCC