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05-08-2014, 07:24 PM
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#1
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Senior Member
Join Date: Jun 2013
Location: McKean, PA
Posts: 1,073
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Dometic RV Thermostat
Does the Dometic Single Zone LCD Thermostat have a battery that needs replaced periodically? What powers the LCD? Is it powered by the A/C heat pump unit?
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2011 Skylark 21FKV
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05-08-2014, 08:39 PM
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#2
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Junior Member
Join Date: Apr 2014
Location: meshoppen
Posts: 13
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not sure but I believe when I was looking at them they had to have a battery.
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99 Designer 3610 / loving life day by day
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05-09-2014, 09:03 AM
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#3
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Site Team
Join Date: Jan 2011
Location: James Island, SC
Posts: 22,852
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Open it and look.
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 Moderator
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05-09-2014, 04:56 PM
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#4
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Senior Member
Join Date: Aug 2011
Location: Missouri City, The Republic of Texas
Posts: 5,063
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That's a nice thermo. I looked over operating instructions and a spec sheet, neither reference a battery. Did not see an install doc. I'm guessing no battery. If you get one, let us know. Has nice features.
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T_
2013 F-350 CC SB 2WD 6.7PS
2013 Eagle Premier 351 RLTS
-SOLD- 2012 X23B
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05-17-2014, 09:00 PM
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#5
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Senior Member
Join Date: Jun 2013
Location: McKean, PA
Posts: 1,073
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Quote:
Originally Posted by RedHorse1
That's a nice thermo. I looked over operating instructions and a spec sheet, neither reference a battery. Did not see an install doc. I'm guessing no battery. If you get one, let us know. Has nice features.
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I opened the cover and no batter is evident, but the LCD and leds work once the camper has AC power so it must come from the heat pump. It seems to have about a 1-1/2 degree variation from turn on to turn off point from a given set point.
I just wish it had an actual temp read out in addition to the set point reading.
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2011 Skylark 21FKV
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05-18-2014, 08:28 AM
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#6
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Senior Member
Join Date: Jun 2010
Location: Saskatoon Sask Canada
Posts: 10,726
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Well that is USELESS if you have to be hooked to shore power for the furnace to work..
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Seann
2004 Chev Silverado Duramax optioned past the max. 2009 Jayco Eagle 308 RLS 900watts of solar, Lithium batteries (400amp hour), 2000 watt (4000 surge) whole house inverter.
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05-19-2014, 03:15 PM
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#7
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Senior Member
Join Date: Aug 2011
Location: Missouri City, The Republic of Texas
Posts: 5,063
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Quote:
Originally Posted by Seann45
Well that is USELESS if you have to be hooked to shore power for the furnace to work..
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I'd bet it uses the house 12V and will work on battery power. Our Coleman thermostats work that way.
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Cheers,
T_
2013 F-350 CC SB 2WD 6.7PS
2013 Eagle Premier 351 RLTS
-SOLD- 2012 X23B
-SOLD- 2003 Ford Expedition 5.4, Bilstein shocks
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05-28-2014, 12:42 PM
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#8
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Senior Member
Join Date: Jun 2013
Location: McKean, PA
Posts: 1,073
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Quote:
Originally Posted by RedHorse1
I'd bet it uses the house 12V and will work on battery power. Our Coleman thermostats work that way.
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You would lose that bet. Our Skylark has a heat pump that only runs on 120 V power and will run if you have shore power even without the battery. If you're roughing it you get no heat or cooling, not even a fan.
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2011 Skylark 21FKV
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05-28-2014, 01:33 PM
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#9
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Senior Member
Join Date: Jun 2012
Location: Sparta, TN
Posts: 1,174
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It is strange they use the term Furnace if it is, in fact, a heat pump. Those usually say Heat and Cool. Furnace is the term associated with a propane furnace. They will run on 12V only (and propane).
Not to say it can't be but I have never seen a travel trailer camper without a propane furnace.
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Chuck - Sparta, TN
2012 Jay Flight 22FB, 2 x Honda EU2000i
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05-28-2014, 01:52 PM
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#10
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Senior Member
Join Date: Mar 2014
Location: Colorado
Posts: 282
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I have the exact same thermostat in my RV. It works off of 12V and shore power both. I don't have a heat pump, just a propane furnace. I can see where a heat pump would need the shore power to function, but no propane furnace should need any more than 12V.
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