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Goodman 3 1/2 ton unit

I had a new unit installed (indoor an outdoor) and the house just wont cool off.the guy who installed it tried several times to fix the problem but had no success.he has narrowed it down to two things,1 he is not sure what size orifice should be in the unit. and 2 he thinks the fluid levels could be off.i am just trying to get some help before i call someone else
air handler
model no.capf3642d6ba

cond. unit
model no.gsc130421ac

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I work for a very large reputable goodman dealer. Your equipment appears to be a correct match. The correct orfice should have been taped to the outside of the outdoor unit in a baggie right beside where the pipes connect. Things will run alot smoother though if you scrap the orfice and have a TXV installed (thermal expansion valve) . This is a mechanical device that adjusts the flow of freon into the indoor coil based on the immediate needs of the coil. After that, balancing the refrigerant is a piece of cake as all we need is about 10 degrees of subcooling to make sure we have plenty of liquid to the TXV.

Posted on Jun 12, 2008


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