Air conditioner Q

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O

olly

Senior Member
Location
Berthoud, Colorado
Occupation
Master Electrician
New condensing unit and A/C coil in the furnace. The furnace is up in an attic.
At the furnace, the the HVAC tech said he needs an outlet mounted for a pump. I assume this is for a condensation pump. Can the power for this outlet be wired from the furnace circuit. Does the outlet need to be a GFCI does the circuit now need to be AFCI?
 
More often I see it connected to the 210,63 required receptacle or 210.70 lighting circuit.
 
augie47 said:
More often I see it connected to the 210,63 required receptacle or 210.70 lighting circuit.
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Same here. Code requires them to be there, so you'll have at least one 120v circuit.

One option is to feed everything from a small sub-panel instead of a separate disconnect.
 
You probably do not want the condensate pump on a GFCI circuit unless there is something else on the circuit to alert you if it trips. Not as bad as losing refrigerator, but could be a mess in semi-finished basement.
 
AFCI security is at present needed for every one of the 15 and 20 amp branch circuits giving capacity to outlets* in private family rooms, lounge areas, parlors, parlors, libraries, lairs, rooms, sunrooms, amusement rooms, storerooms, foyers, and comparative rooms or regions.
 
Attic receptacles do not require GFCI protection. There was a proposal made several code cycles ago to require it but it was rejected.
 
retirede said:
He says it’s in the attic. Which makes me question if the load is really a condensate pump. Everything should be downhill from the unit!
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I would agree, but I’ve seen some units where they use a pump no matter what, I assume because they never want to leave anything in a collection reservoir in order to avoid mold growth.
 
Jraef said:
I would agree, but I’ve seen some units where they use a pump no matter what, I assume because they never want to leave anything in a collection reservoir in order to avoid mold growth.
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Or to provide positive pressure so mold cannot block the gravity flow tube.
 
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