2oldman wrote:
Mandalay Parr wrote:
They all have about an 18 to 20 degree differential.
Differential to what?
Differential is the Temp difference between the hot air intake vent and the nearest cold air exhaust vent after 15 minutes running. A correctly installed AC will have 18 to 22 degrees difference and will continue to the same as the temp in the RV drops. AS to the Difference between 13.5k and 15k. MOST 15k units have larger diameter Copper tubing and I do not believe the evap or condenser are a different size. DO NOT CARE. The only thing you need to know is they have 13.5k or 15k. It does not take much more to get that extra 1500 btu's. It will NOT blow colder air. It just moves the volume of air thru a colder evaporator . I guess, WHY is it important for you to know this answer?????? The 15k units will pull about 2 amps MORE than a 13.5k. The compressor may be slightly more powerful, but since we have not had compressors as a service item for over 25 years I do not know. You really need to contac RVP or Dometic for the answer. Doug
