Forum Discussion

Bob_Vaughn's avatar
Bob_Vaughn
Explorer
May 11, 2017

15000 BTU AC

My Dometic A/C may have to be replaced. If I opt for a heat pump will the wiring need to be changed?
  • The power wiring will be the same, but if it has a remote thermostat that may need a new cable with more conductors.

    Matt
  • lenr's avatar
    lenr
    Explorer III
    Look behind your wall thermostat. A cable with extra conductors might have been installed just because they had it in stock. Mine was built that way.
  • IF you have the WALL Tstat with an LED screen, no extra wiring needed. MOST wired Tstat systems have extra 1 to 3 wires in the cable. Doug
  • I just removed a Coleman Mach AC unit and replaced it with an Atwood Air Command with heat pump. I had too few existing wires for the new unit and had to pull new wires for it but it was WELL WORTH the extra day's work doing it.

    I had to be creative in getting the wires from inside the wall to up inside the ceiling to inside the duct work to the unit.
  • sonora wrote:
    I just removed a Coleman Mach AC unit and replaced it with an Atwood Air Command with heat pump. I had too few existing wires for the new unit and had to pull new wires for it but it was WELL WORTH the extra day's work doing it.

    I had to be creative in getting the wires from inside the wall to up inside the ceiling to inside the duct work to the unit.


    I'm about to purchase a new Atwood to replace the Advent AC in my Kodiak. How is the Atwood working for you? How big is your camper?