View Full Version : What is startup and runnng load for my Trane unit?
07-06-2012, 10:12 PM
I have a Trane 2.5 ton XL15i outside unit and 4TEE3F31 air handler and am trying to determine the startup and running load for the air conditioning mode to assist me in sizing a generator. I do not see this info in my materials left by the installer.
07-06-2012, 11:27 PM
The info is on the data plates on the units.
07-07-2012, 10:06 AM
I believe you generally size for FLA (Full Load Amps) on both indoor and outdoor units. As mentioned, it's on the nameplate.
You need a clamp meter to measure RLA, since it will vary depending on temperature conditions and airflow indoor and out. Although the unit is about 13EER, so nominally that's a COP of 3.8, so about 2200Watts at 95F for both indoor and outdoor unit combined at a steady state. Power consumption goes up at higher temps and drop at lower temps. I don't remember how indoor temperature affects it. TO be safe, just figure 2500Watts in hot weather.
07-07-2012, 06:12 PM
This is my plate. It says "Minimum" of 17 amps...so 220 * 17 = 3740 watts, right? And I haven't checked my air handler yet.
07-07-2012, 08:51 PM
Make sure you get a generator that can handle the inrush current when the compressor starts.
The compressor in that unit briefly pulls 63A on start up
07-07-2012, 09:25 PM
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