Dometic Heat Pump
I just installed a Dometic Brisk Air II Heat pump with a single zone LCD thermostat. But I have an issue. When I set the thermostat to cool and turn the temp down the uniy starts heating and when I se...
Forum Discussion
bob_nestor wrote:
The Dometic Cool Kat factory installed unit in my RV sort of acts the same way as you describe. I finally discovered that it was coming on in the last mode it was in when the thermostat called for a change because of a small deviation from the set point. However I discovered, quite by accident, that when the deviation from set point was large, the unit would go into the correct mode. At that point I could set the thermostat to the desired temperature and the unit would work correctly cycling on and off as needed provided it didn't need to "reverse direction".
You still have a problem. I assume you have the electronic wall tstat with the HP and Cool modes. The system should NEVER go to cool if HEAT PUMP mode switch is on HP. The system should NEVER go the Heat Pump heat if set to COOL. Regardless of any "set point deviation". There is NO RV Tstat that will switch between Heat Pump and COOL automatically. Doug
