Wiring second Ac in a CC 36ckts.

Thank you all for your time, and your replies have been most helpful. I would rather not learn from my mistakes on this one.

Thanks,
Rich C.

You can tape them off, 12 volt power is sent through the data cable.

Hi ,
bed room was prepped for 2nd ac.Power,phone line,2-wire dc connector. That all looks plug and play and matches up to the new ac. The dip switches are set in the new ac, zone-2 set , heat pump set.

Here is my issue , there is a 6 conductor cable wired to the control board,
2-yellows for load shed , 2-blues for furnace, 1-red and 1-black for + and - 12volt.
Are these needed or should they be capped off , "not for my application" or they should be connected and how .
I've searched Google University for hours , and all the documentation I could find from Dometic with no clarity .
Any help would be appreciated .
Then comes the CCC2 power down and reset to recognize the 2nd unit.

If it is pre-wired then not too difficult to do. Should be a junction box at the roof vent and probably loose RJ wire connected to the CCC2 thermostat. You should also have a remote temp sensor on a wall in the bedroom for the 2nd AC. No controls on the grill, the CCC2 controls both units. I installed a non-ducted unit due to undersized ducting for 2 units.

Send Doug Rainer a PM for the best info. Unless the second unit was pre wired with 120V power I would run a separate line that you can plug into the 15A outlet on the power pedestal or into a outlet you add where the power cord comes into the camper... even if you only have a 50A power cord. This will give you more power when only on a 30A pedestal that also has a 15A outlet.

The CCC 2 uses standard rj11 cable and connectors, but wired for data (flipped ends).


All programming is done on the board in the new unit, setting it to zone 2 heat pump, then reinitialize the CCC 2.

Ask them to send an installation manual.