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Old 04-26-2021, 04:41 PM   #1
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How to? Changing to 12 volt compressor fridge

We are looking at switching out our original (2003) dual fuel refrig for a GE 12 volt compressor refrig (9.8 cubic ft).

I've seen some discussions on here where people have done the switch themselves. Anyone who has, could you offer some tips?

We are brand new to motorhomes, so while my husband is a kitchen/bath remodel contractor, he is not familiar with motorhome workings.

Assumption is that we'll need to cut off/ stop the propane line and the electric going to the current refrig. Then we'll need to hook up for the 12 volt power.

It's all new territory for us. Would welcome input from those 'who have gone before.'
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Old 04-26-2021, 08:23 PM   #2
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Just plug the propane line with the correct size flare plug. Leave the 120 volt AC plug alone. Depending on how many amps the new 12 VDC compressor draws, you will probably need to run a new 12 volt wire of the correct size from the 12 volt panel or directly from the battery(ies). This wire will need to have the correct size fuse installed it it. There will also be a ground wire involved.

If your husband is not familiar with 12 volt wiring, I would suggest he hire a technician.

Ken
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Old 04-27-2021, 11:29 AM   #3
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I changed out a Norcold 6 cubic foot unit for a Unique 12 volt DC compressor fridge. Here is my postings about it from last year.

https://www.irv2.com/forums/f56/uniq...ll-485806.html
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Old 04-27-2021, 12:54 PM   #4
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Thank you both for your reply!

@astrocamper, that link will be great! Thank you!
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Old 08-11-2021, 12:33 AM   #5
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Hey, Astrocamper,

We're finally getting around to installing the 12volt refrig in our MH.
Will there be enough power from our 2 12 volt batteries to operate it?
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Old 08-11-2021, 06:00 AM   #6
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Yes, there will be enough power; but how long they will power the refrigerator is the possible problem. When driving your alternator will provide the power. When you stop for lunch or fuel, the batteries will; but for overnight stays without shore power, probably not. Remember that 12-12.1 volt power from your batteries is 50% discharge. You do not want to go below that. Doing so will dramatically shorten the life of your batteries.
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Old 08-12-2021, 12:02 PM   #7
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What source/how much supplemental power would one need then for those parking lot overnights when not plugged in (nor able to run gen)?
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Old 08-12-2021, 02:33 PM   #8
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This should help
https://jc-refrigeration.com/hvac-installation-manuals/
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