Gator48
Branford
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We are thinking if changing our Norcold out and replacing it with a residential refrigerator. I have read that many are adding a dedicated pure sine wave inverter. First is this "required" or just a feel good upgrade. I have a pretty good power system in our Itasca Horizon. If it is required should it just be connected to the existing battery bank with fused connectors, or on to the output of the existing system?
Also how many watts should this inverter be capable of?
Thanks
Dave
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PenMan
New Mexico
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You're kidding, right? You want to run a regular 120vac house refrigerator off your battery bank with an inverter? You'll need a lot of batteries or run a generator continuously. If I'm not understanding your question please forgive me.
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2oldman
Winchester WA
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household refer and inverter2009
Household refer Class A 2009
residential fridge- boondocking 09
Residential refer Class A 2010
residential fridge sept 2011
res fridge.. reliability? 2012
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Son of Norway
Denver, Colorado
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The installation will depend on the specific model of refrigerator that you choose. You will need to have an exact measurement of both start-up and running amp draw to size the inverter and determine if your battery bank can handle the load. The issue is usually a high start-up draw causing a voltage drop.
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smkettner
Southern California
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I think most go with 1000w+ and 150 amp+ connection to four+ batteries.
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Blaster Man
USA
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The new American Coaches with residential refers have two inverters, one 2,800 watts and one 2,000 watts. To power them it has eight 6v coach batteries...and two 12v engine batteries.
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Rich D.
New England
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Mine came with a dedicated 1500 watt PSW which connects to the same battery banks as the other inverter(s). Reason it is slightly larger is that it powers the electronics as well as the 22 cu.ft. KitchenAid SxS refrigerator. PSW inverters will also reduce the power consumption for the refrigerator as the compressors do not like MSW power and current draws on MSW are higher.
PENMAN, no the OP is not kidding. New highly efficient refrigerators are easily run from the coach barrery bank for considerable lengths of time without generator or shore power.
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mscamping
any place, USA
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What size frig.?? We'll put a 9.5 cu. ft. apt. frig. in and it should be fine on what we've got.. 1500 watt inverter w/4 6 volt batteries.. We'll run the gen when needed to keep things cold.. Mike M..
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Jim@HiTek
Gresham, OR, USA
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Many can drive most of the day without opening the residential refer to often and it's still nice and cold when they plug into shore power. So, many don't have a dedicated inverter.
 Jim@HiTek
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mena661
Southern California
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Gator48 wrote:We are thinking if changing our Norcold out and replacing it with a residential refrigerator. I have read that many are adding a dedicated pure sine wave inverter. First is this "required" or just a feel good upgrade. I have a pretty good power system in our Itasca Horizon. If it is required should it just be connected to the existing battery bank with fused connectors, or on to the output of the existing system?
Also how many watts should this inverter be capable of?
Thanks
Dave Like others have said, 1500-2000W PSW will do the trick. Lots of people have done this already so if you need more specific help, check out at least one of 2oldman's links. The good fridges draw about a 1kWh per day (~100 Ah per day on the DC side).
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