Originally Posted by Zad
I ordered the 2400 yamaha generator today along with the supco spp6 capacitor, will let you know how it goes. Thanks for your help.
I didn't see a response from Zad so I thought I'd share my experience.
My A/C unit is an Airxcel 13.5K btu model 8333E7564. My Yamaha 2400ishc would start the A/C unit as long as I didn't have any other high power draw items running (microwave, coffee pot, electric grill, etc.). That said you could tell the generator was near max output and it typically took 6 ~ 8 seconds for the A/C unit to start. On a couple of occasion the generator overload would kick in and knock the generator off line. A second try after a few minutes to let pressure equalize would ultimately start the A/C unit.
Not satisfied to work the generator to the limit every time I started the A/C unit, today I install a Supco SPP6 start capacitor to see if there would be any improvement. I'm glad to inform that with the start capacitor installed the A/C unit would start within 1 second after turning the unit to the cool setting. The capacitor appears to add the required boost at start-up to prevent the generator from having to stay in a max output mode for 5 seconds or more to get the A/C running.
Installation of the start capacitor takes all of 2 minutes once you have the A/C shroud off and remove the access panel. The start capacitor has two leads. You clip one lead of the start capacitor to a terminal of the run capacitor (in my case where red wire is located) and the other start capacitor lead goes to the other run capacitor terminal (in my case where yellow wire is located). These are non-polarized capacitors (even though the diagram depicts polarized by the symbols "-|(-" ) so which lead of the start capacitor goes to which terminal of the run capacitor doesn't matter as long as they are opposing terminals.
For $15 and a half hour of your time it appears to be an easy solution in situations where a generator an A/C start-up are borderline.