My split system heat pump is not functioning. The HVAC repair person says I need to replace the indoor unit. The indoor unit is 20 years old. But the outoor condenser is less than 5 years old. The outdoor unit is a 2.5 ton, 10 S.E.E.R Payne unit. The repair person then tells me by Florida law they must replace the outdoor unit as well. Now I understand the lowest SEER now is 13. And I understand you do not get SEER 13 if you mix a 13 with something less than 13. But that seeemed suspicious to me, so I called the city mechanical inspector. The inspector said in order to pull a permit you had to show that the indoor and outdoor unit are a match set. He mentioned getting a letter from the manufacture showing they are a match. He also mentioned going to the ARI Website. I did not see on the ARI website where to tell if a system is a match or not. At the ARI website I could not find my Payne unit. My outdoor unit is Payne Model Number PH10JA030. How can I find a 3 ton 13 S.E.E.R indoor unit that would be a match. And how would I show proof.
Thanks in advance,