The Advent Air Replacement RV Air Conditioner # ACCAR135 along with all the other air conditioners we currently have do not have a heat pump. We do offer the Heat Strip # ACMHD which fits the Advent Air Conditioner.
Since the Carrier AC's are virtually obsolete on campers you might want to consider switching to the Furrion Chill HE RV Air Conditioner System # FR67FJ which will give you 2 AC and a central thermostat. We also have the Heat Strip # FR27PR you can add to one or both units... view full answer...
It sounds you are looking for the Lippert 4 Point Control Panel W/ Amp Connector part # LC175225. The correct wiring harness to use with this control panel is the Replacement Lippert Components 4-Point Leveling System Control Brain Wiring Harness part # LC178278. I confirmed all of this with my contact at Lippert. view full answer...
Normally I would recommend either getting new shocks, or a steering stabilizer. Since you already have both of those two things I would recommend The SumoSprings Solo Custom Helper Springs Front Axle # SSF-280-47. This will help absorb bumps and shocks better then before. It also minimizes sway. At 50-percent compression it has a weight capacity of 1,500 pounds.
I linked install videos on the part above. view full answer...
You definitely can use 2 of the 15,000 Btu Furrion Chill Replacement RV Air Conditioner # FR86PR in place of your Carrier Air AC units, but like you said it won't be directly compatible with your current setup. In addition to the AC units you'll also need 2 of the Multi Zone Controller # FACC12ZA-BL and Multi Zone Wall Thermostat # FR93PR to get the 2 AC units to talk to each other. This setup is also compatible with a furnace.
I'm not aware of a wireless remote option for this setup.
If... view full answer...