Switching to R410A from R22


Old 06-19-14, 09:39 AM
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Switching to R410A from R22

I have two non-working split system heat pumps (a 3 ton and a 2 ton) that I want to replace with new ones. The old ones were R22, The ones I'm looking at buying on Ebay are R410A. First question, anyone have any experience buying new units off Ebay? Second question, can I use the existing ductwork or will it require modification. I have an HVAC guy coming out next week, and I want to have some education before I talk with him.
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Old 06-19-14, 10:16 AM
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As long as stay with the same sized units you shouldn't have to do anything with the ducts.
Old 06-20-14, 10:23 AM
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We usually replace the supply air plenum and sometimes add more return air with the replacement of a system.
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