Wayne Dohnal wrote:
Not all 13,500 btuh air conditioners are equal.
Yep. But I do not believe any of them (Coleman, Dometic, etc.) build their own compressor. My bet is they come from another supplier. Mine is not a Copeland - not sure where it was made.
We all know that the current for the fan is not fixed. It will increase with speed and resistance to air movement in the fan blades (there are two). As heat increases, so does line pressure on the high side. Compressor motors must work harder (more current draw) as pressure rises.
A/C amperage ratings by the manufacturer should be maximum under these high load conditions. Thus, it is not unexpected that a 15 amp rated A/C will only draw 12 amps under low load conditions.
I would really like to have some hard and true numbers on the new high efficiency 13.5K BTU units rated at 10 amps.
