AC temp
What temp should the air be coming out the ac unit in respect to outside temp. I don't think my ac is working right.
Forum Discussion
TXiceman wrote:Desert Captain wrote:
If your AC is producing 20 degrees cooler than the ambient (outside), temp it is working just fine.
:C
Wrong. It is not meaningful number compared to outside temperature.
Run the unit(s) on high fan and keep the compressors on for at least 10 minutes. Measure in inlet air temperature and the outlet air temperature as close to the unit as possible. Use a thermometer and not an infrared temperature gun. The infrared will not measure the air temperature, but it will measure the temperature of the grill.
A normally operating RV A/C will have the leaving air temperature 18 to 20 degF lower than the inlet air temperature. Much higher or lower is an indication of a malfunctioning A/C unit.
The most frequent problem with an RV A/C not cooling correctly is low air flow. This is caused by:
-running fan on low speed.
-dirty air filter(s).
-dirty evaporator coil.
-baffle between inlet and outlet not sealed and leaking.
-holes in the installation where the wires enter the RV.
In 90 degF plus weather and especially full sun, one A/C will not cool an RV over about 30'. You need two A/C units and they may not work in a typical entry level in the 90 degF plus temps.
You have to remember that n RV is not nearly as well insulated as a house.
ken
Oh lighten up,my 20 degree differential is NOT wrong, it is a "meaningful" number to me. Trust me if it is 95 outside and my rig is 75 inside my AC IS working just fine... sheesh. :R
