Old R22 Unit Question

Old 06-13-17, 10:52 AM
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Old R22 Unit Question

At work we have a 15 ton carrier AC. It's getting replaced this week with a new unit. Question is, on this old carrier, the liquid line is warm and the suction line is cold. Normally I'd say it was working but there's no AC. Temp coming out of air handler is 80. Why would that happen?
Just curious.
Old 06-13-17, 12:56 PM
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It sure appears to be working..... as least somewhat.

Could there be some type of economizer or fresh air intake or bypass vent ?
Possibly drawing in outside air instead or recirculating air from inside.

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