Metering Device Indoor Outdoor Mismatch - HVAC - DIY Chatroom Home Improvement Forum

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Old 09-13-2012, 07:04 AM   #1
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Metering Device Indoor Outdoor Mismatch

Trying to help a friend cobble together heat for a rental house. Has a 2.5 ton Carrier heat pump (~12 yo) and he already bought a used Goodman 3 ton air handler to replace an existing DOA oil furnace.

With a size mismatch like this should we pick orifice or TEV? and with either should we size to the ID coil or OD coil?

I was thinking a 3 ton TEV would be his best chance to make this thing work half decent but would appreciate some expert guidance. Thanks.


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Old 09-14-2012, 04:33 AM   #2
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If the refrigerants is the same for the TXV and the condenser. The half ton difference won't be any issue.


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