dougrainer wrote:
1. 32 RV. A 15k will NOT cool the RV adequately in temps over 85 degrees. PERIOD. You need 2 AC units in RV's over 27 foot. Especially since Slide Outs are almost standard in Trailers. Do you have a slide out?
2. IR temp guns are NEVER used to determine Air temp in a AC system or a Refer system. You must use a digital thermometer to determine air temps.
3. The ONLY correct test on the performance of a AC unit after all variables have been verified(coils clean/filter clean/divider gasket) is a temp corrected AMP draw of the compressor.
4. RV AC units only hold about 1 lb of coolant. So, if you do have a leak, it will either cool or not. Not partially, as the coolant will have leaked out enough to not work at all. Doug
on (1) our trailer is 32ft with two large slides. AC is a coleman Mach III 13.5K BTU. It will keep the trailer inside at 74F at temps up to the high 90's. BUT to do that it needs to come on when the inside temp hits 74. It will NOT cool the trailer down, For that yes, you need two AC units.
Now many trailers have massive air leaks on the ducted AC and not enough ducts. To fix that spend a day sealing up the gaps between the duct and vents and since most trailers use a long duct system, add a few more ceiling vents. Makes a big difference.
And talking about vents, IMHO many of the vents that come on trailers restrict airflow and aren't very adjustable. So, take them out and install aireport AC vents. easy to adjust, give 360 degree airflow and very low resistance in the full on position.
