Condenser vs evaporator: is it ok?


Old 09-02-20, 11:01 AM
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Condenser vs evaporator: is it ok?

3 ton condenser with 4 ton coil
Old 09-02-20, 12:27 PM
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OK, but 4 ton is a little too big, better use 3.5 ton coil.
Old 09-05-20, 02:16 AM
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Check AHRI to see if it's a listed combo. Trane, for one example, is known for oversizing indoor coils to increase efficiency and/or dehumidification capability. However, if you have an old coil and a new outdoor unit or vice versa - perish the thought they're manufactured by different companies - all bets are off.
Old 09-14-20, 05:55 PM
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Yes, you can probably use a 4 ton coil (although 3.5 ton would be better as stated above). The larger coil will improve efficiency (SEER) a little but at the expense of dehumidification. If this is a complete new system, I'd get the size-matched components and I would insist on an AHRI certificate with all of the system components.

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