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Old 04-13-2015, 12:41 PM   #1
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Fridge on AC

I understand the need for the MH to be level when operating the fridge on propane, but is that also true on shore power?
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Old 04-13-2015, 01:11 PM   #2
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Yes, it needs to be reasonably level. The only difference between the two would be the heat source for the boiler tube.

Perfectly level, no, need to be, But the closer the better.
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Old 04-13-2015, 01:42 PM   #3
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Quote:
Originally Posted by WDW View Post
I understand the need for the MH to be level when operating the fridge on propane, but is that also true on shore power?
From an operational point there is no difference so the same rules apply.

Propane is burned,making heat,, This heat powers a series of events (Cycle) that absorbs heat from INSIDE and moves it OUTSIDE.

Electricity is passed through a wire wound resistor..This generates HEAT which...does exactly as the HEAT from the flame did in the last paragraph.

So there is no difference (To the fridge) between A/C and Gas.
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Old 04-13-2015, 02:54 PM   #4
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Quote:
Originally Posted by wa8yxm View Post
From an operational point there is no difference so the same rules apply.

Propane is burned,making heat,, This heat powers a series of events (Cycle) that absorbs heat from INSIDE and moves it OUTSIDE.

Electricity is passed through a wire wound resistor..This generates HEAT which...does exactly as the HEAT from the flame did in the last paragraph.

So there is no difference (To the fridge) between A/C and Gas.

Good explanation!
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Old 04-13-2015, 07:11 PM   #5
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Old 04-15-2015, 01:08 PM   #6
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Reasonably level, regardless of heat source. The issue is that the fluids inside the cooling unit circulate by gravity. If too far off level, they won't flow properly and will cause cumulative damage.

The fridge manufacturers generally say +/- 3 degrees side to side, and +/- 6 degrees front to back. But that's from the refrigerator's point of view. Since they are generally mounted sideways in an RV, that means the RV should be +/- 3 degrees front to back, and +/- 6 degrees side to side.

For a 27 foot motorhome, that means that the front must be within 17" of the rear, and one side must be within 11" of the other side. When you think about it, that's really quite far off of level. So, when parking the rig, if you can walk around comfortably in the rig without feeling like you're walking up a ramp, you're probably good enough for the refrigerator.

And those level values only apply while stationary. While moving, being out of level is not a problem, since the liquid inside the cooling unit is sloshing around and not stagnant.
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