What is this ???

[mtnguy]

Originally Posted by kz08h5

There is a a thread, either on this or another RV forum, asking about a 2400 W generator running a 13.5k BTU AC. The guy installed the hard start cap and was able to run the AC. BUT, he also found out that when the outside are temperature got into the mid 90s the generator did't have enough power to get it started.

Hmmm, I wonder why that would be ?? It seems to me that starting the AC at 95° would take no more power than to start it at 80°.

I have run my 13,500 BTU AC with my EF2400is when the outside temperature were in the mid 90s with no problem.

[baldy]

Power output will decrease due to increased ambient temperature. Cold dense air = more power. Hot thin air has less oxygen per charge. This is why turbos/superchargers/NOx are used. More air = bigger charge of O2 = more fuel can be burnt = more power.