Wattage Woes

[Tim in NWFL]

I have a Rheem RAKA-037JAZ A/C unit feeding a Janitrol GMP075-3 Air Handler. I have the specs on the Rheem giving minimum / maximum amps as 22/35 I have no info on the Janitrol. I am trying to determine how large a backup generator I would have to purchase (in kW & amps) to support running these units. I am leaning toward a portable gernerator 11 - 18 kW connected to a manual transfer switch. If I am way off please let me know

[dietz]

The janitrol air handler would have to be a min amount of amps. The only thing running is the motor unless you have backup resistance heat and those are usually about 5kw per string or so.

Hope this helps
Ted