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10-06-2023, 02:57 PM
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#1
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Seasoned Camper
Join Date: Oct 2018
Location: Princeton
Posts: 77
M.O.C. #22801
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inverter
just purchased a 2019 3931fb w/resi frig, Q is do I leave the inverter on when plugged into shore or turn on before we go to next stop?
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10-06-2023, 03:01 PM
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#2
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,233
M.O.C. #30417
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You should have a transfer switch that senses shore power and will bypass the inverter while plugged in. Shouldn't hurt anything. Turn it off when storing the trailer.
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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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10-06-2023, 03:15 PM
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#3
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Seasoned Camper
Join Date: Oct 2018
Location: Princeton
Posts: 77
M.O.C. #22801
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Thank U Sir, we do live full time in it, 3-4 months on property, then travel the rest.
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10-07-2023, 05:33 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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As Tony said, yes you can leave the inverter on. Actually, the benefit to doing so is that if power goes out, your fridge will run on battery until it is restored, giving you a "battery backup" for the fridge.
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Robert & Diana McNeal
2019 Montana Legacy 3791RD 20th Anniversary Edition
2014 F350 4x4 6.7L SRW
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10-07-2023, 02:26 PM
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#5
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Montana Master
Join Date: May 2006
Location:
Posts: 1,700
M.O.C. #5751
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I turn my inverter on only if I'm going to use it as in driving. Any time it is on, even on standby, it is using electricity and subjected to wear and tear. When living in the RV if the power goes off, which is highly unlikely where we are, we notice it immediately since the digital clocks all go blank.
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10-18-2023, 09:14 PM
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#6
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Established Member
Join Date: Mar 2017
Location: Illinois
Posts: 48
M.O.C. #19500
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Agree with Cat320 post #5. I can hear inverter running so prefer to shut it off when not needed. No reason to have it running just to wear it out sooner.
Yes it would be a backup for power outage in campground but temp hold will in Refrigerator without power for some time. I figure I will return before that would be critical.
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Dave & Kathy + Andi & Tucker (Golden Retrievers)
2017 Montana HC 353RL - Sailun S637's, Progressive EMS-HW50C
2017 Ford F350 Lariat CC 6.7L SRW LB, B&W Companion OEM puck mt.
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10-19-2023, 08:11 AM
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#7
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,233
M.O.C. #30417
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Rigs like mine with gas absorption fridge and inverted plugs require the inverter to be left on in order to have 120 volts at those inverted plugs. So if the inverter is off the plugs are dead. As I stated, the inverter has a transfer switch built in that will pass shore power to those plugs when present. However, in order for the inverter transfer switch to work the inverter needs to be on. At least those with Dimensions inverters. I don't know about the Xantrax. The only noise you would hear is the cooling fan which shouldn't activate unless the unit under a load. And as far as wearing it out, in a passive state their shouldn't be any concern.
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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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10-19-2023, 09:07 AM
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#8
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Montana Master
Join Date: Dec 2021
Location: Northeast TX
Posts: 942
M.O.C. #30262
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Quote:
Originally Posted by Foldbak
Rigs like mine with gas absorption fridge and inverted plugs require the inverter to be left on in order to have 120 volts at those inverted plugs. So if the inverter is off the plugs are dead. As I stated, the inverter has a transfer switch built in that will pass shore power to those plugs when present. However, in order for the inverter transfer switch to work the inverter needs to be on. At least those with Dimensions inverters. I don't know about the Xantrax. The only noise you would hear is the cooling fan which shouldn't activate unless the unit under a load. And as far as wearing it out, in a passive state their shouldn't be any concern.
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Our Diminsions inverter is wired up the same in our rig. Unit is in bypass when on shore power, but if left off it will not supply bypassed power to our residential refrigerator
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 Lee, Edith, Lil' Bit & Cuddles
22 MHC 331RL, Surge Guard 35550, SumoSprings, Kodiak disc brakes, 412Ah Lithium, Gen 3 Goosebox, Sailun 85s
22 Ram 3500 CC DRW 6.7 CTD Herrin Hauler Classic Bed, 45 gal AUX tank
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10-19-2023, 09:15 AM
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#9
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,659
M.O.C. #9969
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Our Magnum also has to be left on to bypass power to the Fridge, but it is also a 45 amp Charger when not in Inverter mode.
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Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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10-20-2023, 03:27 PM
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#10
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Seasoned Camper
Join Date: Oct 2018
Location: Princeton
Posts: 77
M.O.C. #22801
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inverter
Thx all, decided to turn off while plugged in..
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Linear Mode
