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Old 01-06-2014, 03:15 PM   #1
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Res. Fridge and inverter wiring confirmation plz

When I purchased my used AC Revolution I went through all of the manufacturers to check for Recalls. Found the Norcold recall. It was working fine, but hadn't had the recall performed. Brought it in and they added the little black box "rev e". However, as I researched the issue I realized I needed to replace the fridge (from a safety standpoint). Well, my last camping trip forced the issue. The black box kicked in, and for the safety of my family I choose not to hotwire it. (I felt coils and they were very warm, so I guess the black box worked.) I have subsequently removed the fridge and am modding the cabinet to fit a Samsung 197 series. Kudos to American Coach, this has been an easy job thus far due to their craftsmanship.

OK, long pre-amble. Here is my question. My coach has two 110V outlets for the fridge, and the Norcold was wired to both. One is Inverter and one is regular 110V. When plugged into shore power both outlets show 110v. My guess, and I want confirmation, is that I connect the Samsung to the inverter outlet. That the inverter itself provides Shore power when avail, and inverted 110V when the inverter is on. Is this correct?

I have a square wave inverter, thus the choice for Samsung.
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Old 01-06-2014, 04:11 PM   #2
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Quote:
Originally Posted by akeyzoo View Post
Here is my question. My coach has two 110V outlets for the fridge, and the Norcold was wired to both. One is Inverter and one is regular 110V. When plugged into shore power both outlets show 110v. My guess, and I want confirmation, is that I connect the Samsung to the inverter outlet. That the inverter itself provides Shore power when avail, and inverted 110V when the inverter is on. Is this correct?

I have a square wave inverter, thus the choice for Samsung.
Your logic was a bit difficult to follow, but yes, you want to plug into the outlet powered by the inverter. If you don't, then you won't have refer cooling when NOT plugged to shore power.
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Old 01-06-2014, 04:17 PM   #3
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My Norcold 1200 is plugged into two 120v outlets. One is the refrigerator and the other the ice maker.
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Old 01-06-2014, 05:39 PM   #4
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My Norcold 1200 is plugged into two 120v outlets. One is the refrigerator and the other the ice maker.
That would be correct.... The OP's residential refer won't require separate outlets.
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Old 01-06-2014, 05:48 PM   #5
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................My guess, and I want confirmation, is that I connect the Samsung to the inverter outlet. That the inverter itself provides Shore power when avail, and inverted 110V when the inverter is on. Is this correct?

I have a square wave inverter, thus the choice for Samsung.
Exactly how my 197 is connected. Worked well for 3 years and continues to be an excellent mod.
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Old 01-06-2014, 06:59 PM   #6
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AHA, Bingo, the ice maker! I was wondering why the Norcold had to be plugged into BOTH the inverter and regular 110V outlet if the inverter outlet provided shore power. It's because the ice maker is a shore power only item.

Thanks, and sorry for making this sound more complicated then perhaps it was!
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Old 01-06-2014, 07:47 PM   #7
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"akeyzoo".....I'm not a big fan of running my inverter 24/7 when I'm not using the coach. Since the Samsung is now left on all of the time, I unplug from the inverter outlet and plug into the 110v shore power outlet when the coach is parked at home and then turn off the inverter.
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Old 01-06-2014, 07:57 PM   #8
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I helped a friend install a 197 in his Monaco. Had to run new wires from the inverter to the refer wiring to get it to run full time through the inverter. Nothing fancy about it either.
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Old 01-06-2014, 11:28 PM   #9
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"akeyzoo".....I'm not a big fan of running my inverter 24/7 when I'm not using the coach. Since the Samsung is now left on all of the time, I unplug from the inverter outlet and plug into the 110v shore power outlet when the coach is parked at home and then turn off the inverter.
You should not have to change plugs when on shore power alone. The inverter has a "pass through" when it is turned off so that shore power goes through to the outlets
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Old 01-07-2014, 07:42 AM   #10
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AHA, Bingo, the ice maker! I was wondering why the Norcold had to be plugged into BOTH the inverter and regular 110V outlet if the inverter outlet provided shore power. It's because the ice maker is a shore power only item.

Thanks, and sorry for making this sound more complicated then perhaps it was!
The ice maker is on the inverter the refer is on shore power that way when you unplug it goes to gas.
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Old 01-07-2014, 12:04 PM   #11
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The ice maker is on the inverter the refer is on shore power that way when you unplug it goes to gas.
I am not sure the above is correct. Since my Norcold is in my driveway in pieces I cannot confirm tho. I though the ice maker ONLY worked when connected to shore power, which is why it was wired that way. Of course, if the refrigerator was wired to the inverter outlet it implies that when disconnected from shore power with the inverter on, the fridge would be powered by the inverter and NOT LP. I can no longer validate that.

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Old 01-07-2014, 12:06 PM   #12
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You should not have to change plugs when on shore power alone. The inverter has a "pass through" when it is turned off so that shore power goes through to the outlets
Agreed, and this is what prompted me to start this thread, I wanted to confirm the "pass through" because my digital multimeter was measuring that one existed (I was getting 110v on inverter outlet with inverter OFF connected to shore power).

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Old 01-07-2014, 12:28 PM   #13
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Yes....it has a pass thru connection with a set of contacts that are unnecessarily being used/consumed while the coach is sitting at home. This falls under the same reason why you shouldn't use an electric heater plugged into outlets that run thru the inverter.....unnecessary wear and tear.
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Old 01-07-2014, 12:56 PM   #14
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Yes....it has a pass thru connection with a set of contacts that are unnecessarily being used/consumed while the coach is sitting at home. This falls under the same reason why you shouldn't use an electric heater plugged into outlets that run thru the inverter.....unnecessary wear and tear.
Excuse me! Tell me how passing voltage through normally closed contacts puts unnecessary wear and tear on (or consumes?) those contacts.

I agree that the inverter should not be required to power some loads if/when they can be powered directly from the incoming shore/gen power, but to say they shouldn't be power through the pass thru contacts of an inverter that is turned OFF is ridiculous.
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