The condenser unit on my 20 year old split system has died. The air handler unit inside is still working, but was installed foolishly and I'll have to tear into drywall/studs to remove/replace the air handler unit when it finally poops out (don't ask about the poor judgement at the time of the original install, please). So I'd like to avoid replacing the air handler until necessary. Well, my main HVAC guy is a side-work guy who prefers new installs to repairs, and he's been told at the supply house that current higher-SEER condensers can't be matched to old, lower-SEER air handlers. But is that really true? Can I hook a new condenser (of appropriate tonnage) up to an existing 20 year old air handler/coil with considerably lower SEER rating?
I figure the supply house is covering it's rear end and saying that mismatching will void warranties, etc., and they also have a vested interest in selling both halves of a new split system. Is that so?
Will I be forced to to replace the compressor or fan motor at any price (and with scavanged antique parts) to keep the old condenser working so as to keep the match with the air handler inside the house?
Thanks for any feedback.