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Old 05-23-2020, 02:39 PM   #341
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Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 1,749
THOR #6411
Quote:
Originally Posted by Pete'sMH View Post
No, the moisture is coming from inside your coach. Atmospheric humidity, your breathe, shower and cooking humidity is what youíre seeing. The warm humid air from inside is being cooled and dehumidifies on the roof and the water is being drained to the roof.
Coleman A/Cs have slinger ring on the condenser fan. There is a delivery tube form the evaporator to a small cavity under the evaporator fan the holds the water. This way, the wet conditioner helps evaporate the water and increase efficient or at least that is the theory. Of course if you are in a humid area the extra water just runs off the roof unless your A/C gas a condensate pump.
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Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
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Old 05-23-2020, 07:04 PM   #342
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Brand: Thor Motor Coach
Model: Newmar Bay Star Sport 300
State: Alabama
Posts: 2,029
THOR #6826
Quote:
Originally Posted by Judge View Post
I understand that..... the evaporator is pulling in the warm, humid air and cooling it so the moisture condenses and cools. There must be a drain for a drip pan for the evaporator that exits the unit on the roof. I didn't see anything while insulating the metal box around the evaporator so I assumed the condensation was from the metal being cool and condensing the humid air on the roof.



I remember that one of my home A/C units was rated extra quiet and it was because they placed an insulated bag around the compressor to quiet the noise. I just started wondering if there was more efficiency to be had by insulating the compressor on the roof to minimize a loss in cooling around the compressor.


I think some high end coaches collect the condensate and use a small pump to send it down one of the tank vents. Itís a fine idea but itís also just one more thing to maintain or to fail at an inconvenient time.
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