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08-27-2023, 06:21 PM
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#1
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New Member
Join Date: Jun 2023
Location: CAMPBELLSVILLE
Posts: 5
M.O.C. #32890
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Refrigerator power
We have a Montana legacy 2019/ 20th anniversary 42 foot 3931. We bought this unit from a dealer and are getting ready for our first big trip and realized we’re not sure what the refrigerator runs on when we are not plugged the shore power. The refrigerator looks like a residential one. Does anybody know if it is propane?
So many things to learn
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08-27-2023, 07:56 PM
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#2
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Site Team
Join Date: Sep 2017
Location: Oro Valley
Posts: 3,933
M.O.C. #20477
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If your rig has a residential reefer it should also have an inverter located in the battery compartment to power the reefer when not on shore power.
__________________
Zack and Donna plus Millie and Ranger
2018 3160RL
"Life is too short to stay indoors, enjoy the ride!"
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08-27-2023, 08:36 PM
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#3
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,236
M.O.C. #30417
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Quote:
Originally Posted by Camping Farmer
We have a Montana legacy 2019/ 20th anniversary 42 foot 3931. We bought this unit from a dealer and are getting ready for our first big trip and realized we’re not sure what the refrigerator runs on when we are not plugged the shore power. The refrigerator looks like a residential one. Does anybody know if it is propane?
So many things to learn
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No it doesn't run on LP. 120 volt only. Shore power or inverted battery power. Note it won't last long on inverted battery. Mostly used for traveling to your destination.
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Tony & Donna
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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08-28-2023, 05:43 AM
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#4
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Montana Master
Join Date: Oct 2019
Location: Jacksonville
Posts: 2,140
M.O.C. #25165
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Usually (but not always apparently) the last "one" in your model number "3931" indicates a residential fridge. Mine is a "3791RD" and I was told by the dealer and Keystone that the "1" indicated residential fridge. A "3790RD" is the same trailer with an RV style propane fridge.
All that being said, look for an inverter. Mine is on the ceiling in the basement. Since yours is also a 2019 20th anniversary model, it may be the same or at least similar.
__________________
Robert & Diana McNeal
2019 Montana Legacy 3791RD 20th Anniversary Edition
2014 F350 4x4 6.7L SRW
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08-28-2023, 06:01 AM
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#5
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New Member
Join Date: Jun 2023
Location: CAMPBELLSVILLE
Posts: 5
M.O.C. #32890
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Thank you
Thank you for your replies. We feel a little more confident we’re not gonna lose something because we didn’t know what we were doing. We will leave the inverter switch on, so we don’t forget that. Thanks again.
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08-28-2023, 06:09 PM
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#6
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,702
M.O.C. #12947
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You also might check the size of your batteries that the dealer installed. If they are only Group 24 batteries, you might be ahead by replacing them with a much larger size or even golf cart batteries.
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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09-08-2023, 10:43 AM
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#7
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Montana Master
Join Date: Jan 2018
Location: Northville, NY
Posts: 807
M.O.C. #21158
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I agree with Bob & Becky. Go for a true deep cycle battery. Although when traveling, our truck has always been able to keep the battery fully charged even with the inverter on.
__________________
Jim B
2017 Lariat F-350 FX4, CC, SB, 6.7 PSD 4WD
2018 MONTY 3731FL, at our private winter site in GA
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