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TenOC's avatar
TenOC
Nomad
Aug 05, 2016

13.5K BTU vs 15.0K BTU Air Conditioners -- HOW????

Question for my RV Air Condition Experts. What is the difference in 13.5K BTU and 15.0k BTU? I know what a British Thermor Unit is. My question is HOW does the A/C achieve the difference in the R...
Bob_Landry's avatar
Bob_Landry
Explorer
Aug 15, 2016
They are not "contaminating" each other as they are spaced out. Cold air is likely being drawn directly back to the return side in the discharge plenum(lower unit)usually the result of a poorly done installation. Drop the cover on the AC and stick your hand up into the plenum. If you feel any cold air at all, it needs to be sealed off/re-taped.

"Since I've only used my hand to gauge delta-T I have no idea what a ~20 degree drop should feel like."

And you will not be able to gauge it.

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