Air handler electrical requirements.

anthony_7

Trying to find out the electrical requirements for a payne 3 ton air handler. For some reason NO ONE seems to have this info. Not even the parent company carrier.

I just need the breaker size if anyone out there knows.!!!! Thx.

Ken D.

Air Handler

I'm assuming the ID label is gone off the unit cabinet. All that info usually is there. Most AC only air handlers of that size draw less than 10 amps in which case you would use a 15 amp breaker. This is only if there are no ancillary devices in the circuit such as condensate pumps, humidifiers, electronic air cleaners,electric heat, etc. If this unit has electric heat, you will have more amp draw, usually 15 to 20 amps per elec. heat element. Check the blower motor label to see the amperage rating of it as well as any other electric consuming devices such as electric heat, transformers, lights, EAC's humidifiers,etc. Total these up and increase the breaker to the next size to allow for inrush amps (locked rotor). EX. Total amps-10, Breaker size 15. Or you can measure the amps of the AH circuit with all devices energized and again add up to the total and use the next size breaker. IMPORTANT: make sure you don't size the breaker larger than the total ampacity of the feed wire supplying the AH. In other words, #14 wire can only handle 15 amps, don't use a 20 amp breaker and so forth. Unless this unit is very old, it is strange that Carrier does not have the specs on it. See if you can locate the Payne dealer or supplier in your area. They should be able to help. Otherwise I advise a reputable HVAC contractor to consult. They will be able to help. ABOVE ALL; be careful you are dealing in high voltage. use proper test equipment, meters and safety practices. If you are unsure of anything, call a pro.

ernie_3

Payne A/H

the unit is 220v and requires a two pole 15A.