208v p-tac on 240v

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wiz2007 said:
i have a single phase 208v p-tac that i was wondering if i could run it on a 240v residential service?
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1. What's a p-tac?
2. Any specs, labels, documentation?
3. Manufacturer's help?


If not, you could always buck it down.
 
Package Terminal Air Conditioner

CarrierPTAC.jpg


They use them in new motels.... under the window. Heater & AC. I've also installed them in sunrooms.

Does the unit have a 240v rating? If it's only got 208 on the label, then you can only install it with 208.
 
wiz2007 said:
i have a single phase 208v p-tac that i was wondering if i could run it on a 240v residential service?
Click to expand...

Only if it's rated for both voltages!
 
I've been running a single phase 208 volt rated, fan driven, garage heater for years on 240-250 volts.
 
wiz2007 said:
i have a single phase 208v p-tac that i was wondering if i could run it on a 240v residential service?
Click to expand...
Probably. The resistance heating element is the only reason they make some with a straight 208 rating. The compressor is exactly the same. If the dataplate says straight 208, the real answer is that you're not supposed to. The straight skinny from a guy who's worked on many of them is that it will be okay.
 
benaround said:
Rob, You really should shut it off during the summer months !
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Good one. ;) Actually the price on the heater was right, free, so I don't really care if it burns out. Point being that a 208 volt unit may operate at 240 volts. But IMO for a new installation the unit should have voltage rating that matches the system it's connected to.
 
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