With the start of heating season I found my heat pump not working. It's an older R22 unit and we have a home warranty that I love very much. They found leaking evaporator coil needing replacement. My question is they will replace evaporator coil or I can pay the difference between repair price and replacement price and get an entirely new system. I would rather not pay for replacement system can I get an evaporator coil that is capable of using either R22 or 410 based on correct thermo expansion valve? Then when compressor fails home warranty will repair/replace and I can upgrade to 410 refrigerant outside unit? Yes I've read about corrosion if not flushed properly. How do I make sure I get proper dual refrigerant coil?
They recommend an entire new system do to its age (which I agree with) however home warranty will not replace system if it's repairable. It cost me nothing to repair but if I could upgrade inside coil now then when needed replace outside unit with r410 unit it would save me $4,000. I know they make coils capable of metering either 410 or 22 based on txv choice. But how do I know which one I'm getting?
Just as r12 was phased out, so will r22. If you are convinced of saving some money now, get it repaired. At some point, you will be upgrading to a 410 system though. The coil should have a rating plate on it with the info you seek....what type of metering device, what type of refrigerants, etc. I think you may also have to change out the line set once you switch over to 410 if the lineset used has /had 22 in it. I believe it was an issue with the refrigerant oils not being compatible with each other. Sounds expensive at any rate....$4K!
Without being fraudulent I would think that the repair place can reduce the upcharge between fixing and replacing that old R22 turd. Perhaps there is also a state efficiency incentive?
yooperdave thanks I'll see if I can get the rating plate info prior to ordering evaporator coil. Highbeam a repair of the existing system requires replacement of the inside evaporator coil, this is at no charge to me. Or I could elect to install a brand new system for about 4K. Cash price for a new system is right at 7k. That quote is from another company. Third company bid is pending hope to hear something tomorrow. No state rebates that I could find, local electric coop has dual fuel rebate if I installed a 16 SEER unit which cost even more expensive.
I'm not Dutch but I fit the description. "A true Dutch can buy from a Jew, sell to a Scot and still make a profit!"
I wouldn't go 410 ...just my 2 cents ...407c is an easy conversion, and 421a is a drop in replacement. . Sent from my SM-N910V using Tapatalk
I did some reading on these and I see how comparable they are in terms of operating parameters. But why do a conversion on a system at the end of its operational life? And if I do a replacement why not upgrade to 410 and the higher efficiency?
410 runs much higher pressures , the conversion gases I mentioned are much cheaper than r22 Sent from my SM-N910V using Tapatalk
Went ahead and had the coil replaced, could not justify the expense of upgrading since I recently added 15" insulation in the attic and only use the heat pump for AC and to take the chill off in shoulder season. Ran the unit for a few weeks until the wife said, "I hate that heat pump cycling on and off" got the Progress Hybrid running like a top, the extra insulation really made a difference in comfort and uniform temperature in the house.
