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04-07-2015, 06:43 PM
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#1
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Established Member
Join Date: Jul 2014
Location: PLEASANT HILL
Posts: 37
M.O.C. #14541
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AC/Heater Questions
Another rookie question:
In our 2015 305RL rig we are running the heater but AC unit is on too. Does the AC unit need to be on when the heat is on? I've look all over and can seem to figure this one out.
Any help would be appreciated
Happy Camping!
__________________
2015 305RL Montana High Country
2017 F350 SRD King Ranch 4x4
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04-07-2015, 06:57 PM
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#2
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Established Member
Join Date: Jul 2014
Location: PLEASANT HILL
Posts: 37
M.O.C. #14541
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Finally found it- On the Dometic Thermostat if the fan says Hi or Low both the heater and the AC will below Use the +/- to select Auto.
__________________
2015 305RL Montana High Country
2017 F350 SRD King Ranch 4x4
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04-08-2015, 04:52 AM
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#3
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Montana Master
Join Date: Mar 2005
Location: Port Orchard
Posts: 1,153
M.O.C. #3403
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So your saying that if the thermostat is set on "Auto" the AC/Heater unit will automatically adjust the temp according to the degree setting of the thermostat?
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04-08-2015, 05:25 AM
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#4
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Montana Master
Join Date: Apr 2015
Location: Stafford Springs
Posts: 524
M.O.C. #17256
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The fan must be set to auto to avoid it running when heat is on. any other setting and you get heat from the floor and cool air from the ceiling
__________________
Jason & Wendy
2014 Ford F-350 Lariat 6.7L PSD
2015 Keystone Montana 3711FL
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04-08-2015, 05:34 AM
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#5
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Montana Master
Join Date: Mar 2005
Location: Port Orchard
Posts: 1,153
M.O.C. #3403
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Are we talking the heat-pump for heat of the furnace?
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04-08-2015, 02:26 PM
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#6
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Montana Master
Join Date: Feb 2005
Location: Haysville
Posts: 4,261
M.O.C. #3085
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Nope ... If you have the dual zone thermostat, the fan must be set to auto when running the furnace ... otherwise, the A/C will kick in as well. Dunno who programmed this deal ...
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04-08-2015, 05:03 PM
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#7
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Established Member
Join Date: Jul 2014
Location: PLEASANT HILL
Posts: 37
M.O.C. #14541
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It a really odd configuration. Yes if the fan is not in Auto both systems will be on. And that blows.
__________________
2015 305RL Montana High Country
2017 F350 SRD King Ranch 4x4
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04-08-2015, 05:36 PM
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#8
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,690
M.O.C. #12947
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Actually, the compressor is not running when the fan selector switch is on anything but auto, just the circulation fan.
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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