3 port scroll compressor?
I saw one of these on a Carrier RTU the other day, and I'm a tad baffled.
A digital compressor(from what little I've seen of them) have a solenoid, off the discharge, so...whats the purpose of the 3rd port, other than to mess with my head?!
Is the port down low maybe a oil equalizer? got pics?
UA Local 32
Originally Posted by buford
It it near an oil sight glass?
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2 Tim 3:16-17
RSES CMS, HVAC Electrical Specialist
AOP Forum Rules:
If it's a smaller digital there is suction, discharge, and then the line for the solenoid tees into the discharge and goes back into the top of the compressor.
All 3 ports are on the side of the comp.. This is the newer style Carriers, with a V shaped condensor, like the Lennox LGA style, and a Comfort-Link controller.
There is a discharge on the upper half(not the top), then a another line in the middle, then the suction on the lower half.
Sorry no pics.
sounds like vapor injection.
Economized gas port???