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Old 03-23-2014, 11:53 AM   #1
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rperrym's Avatar
2013 28' Flying Cloud
Hot Springs Village , Arkansas
Join Date: Nov 2010
Posts: 159
Dual Heat Pump Temperature Control

After using both heat pumps in our new FC, I think something must be connected backwards. The front unit, Zone 2, runs until the temperature in the rear, Zone 1 is satisfied. The rear unit, Zone 1, runs until the inside temperature in Zone 2 is satisfied. So, it can get very hot, or cold, in Zone 1 while the heat pump in Zone 1 is still running, trying to control the temperature in the other zone, and vice versa. Is something wired backwards?
I would appreciate any advice. It is on our list for our first factory visit, but if it is something I could correct now, I would do it.


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Old 03-23-2014, 01:01 PM   #2
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2014 27' Flying Cloud
Bushnell , Florida
Join Date: Nov 2013
Posts: 208
Our Class A had dual units like your Airstream. The main thermostat in that coach was in the front (zone 1), and there was a bedroom temperature sensor (zone 2) that was wired into the main thermostat. When we operated the zone 2 unit from the main thermostat, the zone 2 sensor very accurately told the thermostat when to cycle the zone 2 unit on or off, and the thermostat sensor controlled Zone 1 as needed.

Does your Airstream with 2 HVACs have a remote sensor somewhere on the wall in the front (your zone 2)? If there is only the main thermostat (your zone 1), with no zone 2 sensor, your main thermostat is waiting to be satisfied by a unit 15' away from it.

If you have a main thermostat and a remote sensor, then perhaps the installer swapped the inputs and they could simply be reversed? Does that make Sense? I hope this isn't further confusing your issue............

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Old 03-23-2014, 01:19 PM   #3
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2013 28' Flying Cloud
Hot Springs Village , Arkansas
Join Date: Nov 2010
Posts: 159
I have one wall mounted thermostat, but it shows two different inside temperatures, depending upon which zone you are looking at.
Perhaps there is a second inside temperature sensor, and they are swapped.
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Old 03-23-2014, 09:15 PM   #4
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2011 34' Classic
Westchester Cty.NY , / Miami FL
Join Date: Jul 2007
Posts: 3,122
my rear sensor was located over the rear television which froze me when the tv was on. i moved it. in my unit the rear is zone 1.
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Old 03-23-2014, 09:24 PM   #5
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1974 Argosy 20
2014 20' Flying Cloud
Kooskia , Idaho
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Looks like a warrantee issue to me. Airstream should correct it for you.
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