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Just installed a used 2.5ton h/p it was blowing 62deg air, now its blowing 85deg air, the low side is sweating, what now?

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Sounds like you have a possible obstruction in the lines and/or do not have the proper amount of refridgerant in the system. Check the site glass to see if you see air bubbles, if so, it could be that more freon is needed, if no bubbles and no liquid refridgerant is seen, you likely have an obstruction in the system.

It is recommended that the system be subjected to a vaccum before recharging with refridgerant, to make sure that the system is clean and clear of any obstructions. It is also best to install a new refridgerant filter with any installation to help mitigate contamination.

If you have a proper set of gauges and the specs for the system, a competent HVAC tech should be able to determine the problem and a probable solution.

Posted on Jul 28, 2009


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