York Evaporator Coil replacement?
An air conditioning tech last year told me my evaporator coil is leaky (checked with an ion detector), and needed replaced. He refilled the system at the time, but it's no longer working (lasted about 3 months). Anyway, he estimated the replacement/repair job to cost about $900-$1000 or so.. I'm looking to buy the part myself and possibly contract out the labor (unless it's easy enough to do.. I know solder, and am fairly handy with tools). My problem is that I can't figure out exactly what part number to order, as I don't know the tonage of the system. The model number of the coil is York #M3Uf044SA, and it was manufactured in 1992 (installed about 1994). Serial number is EGAS214289. It is installed as an upflow on top of the furnace, but is not an A-frame design.. It is 7x22x22 inches (HxWxD), and I have a total of about 30 of vertical space to work with if I get an A-Frame coil. The condensor unit's label is mostly unreadable due to weathering, but I can tell you it says R-22 on it.. Does anyone out there know what part would be the correct/best replacement? Or at least what size unit this is?? (I think it is either 3 or 3.5 tons) Thanks! -- Eric of capacity, may be 44,000 btu, what are the numbers off the outdoor unit? dimensions you give will accommodate the new a coil Ok, I found the warranty card for the outside unit, which includes the model number. It is York #H2DA042S06A, which I expect is 3.5 tons (42K BTU).. It lists outdoor PSI at 430, and indoor at 220. it's easy for me to say.BUT,if it were me I would locate the leak and repair it.PDF Well.. According to the HVAC tech who looked at the system last year, the coil cannot be repaired, and must be replaced. It's an aluminum coil, and he said it can't be patched.. Another question.. I spoke with an HVAC contractor, and he said he thought it unlikely that the evaporator coil is the problem.. He thinks there is likely a leak somewhere else, but that detecting the leak is very tricky, and it's going to cost me at least $200 just for him to look for the leak (which there's no guarantee he can find).. Sounded like he was basically saying without replacing the whole system, there's no way to be sure there isn't a leak. Is there any way for me to look for the leak myself, or do I need to shell out the $200+ for someone to come out and test it again.. Last year a different contractor told me the leak was in the evaporator coil, but this guy doubts that analysis.. -- Eric I once worked for a company in Baltimore back in the 70d's......I also attened the Wash Caps and Pittsburgh play off game that was the 2nd longest in play of history.I know this info does not help you Eric but,hey the forum does not have to be all work.Anyways,I HAVE never seen an AL evap coil made by YORK....I could be wrong so wait for other replys.In the 80's Carrier made a condenser coil of AL---it was alot of problems---reason being when installed close to the Maine shoreline the salt water ate the coils apart---AND under warranty.I am a TECH and not a salesman---I will try to help---give the the M# and S# of the coil they want to install---I will try to give you a price of the coil---remember the price will be wholesale.PDF Its a given.....leaks are sometimes very hard to find, but I'll give you a clue. With an electronic or even a halide, it wouldn't cost you 200 to find it unless it was buried underground. That York coil you have is a dog and very well could NOT be brazed without removal. You've got plenty of head room. Have a pro replace it with an a-coil/cabinet and he has the necessary recharge/vacumn equiptment and know-do it right, and with a WARRANTY. The tech that was out last year used an electronic detector, which beeped when placed next to the evaporator coil.. This other guy says he doesn't think that's the problem.. Says he doesn't trust the electronic detectors or even dye packs. What's a halide detector?? I'm probably going to just replace it and hope for the best.. -- Eric I think I'd tell the other guy that doesn't think much of the detection of a refrigerant leak with an electronic leak detector because he doesn't trust them, to take a hike. Don't know where the name halide came from but its a small torch-type head that attaches to a propane bottle. When lit, the flame passes over a copper disc and the reaction between this and freon gases, turns the flame color to blue, with 100% accuracy. This and soap bubbles, preceeded electronics as far back into the 50's as I can remember. Go for a new coil. Ok.. I have a technician coming out wednesday to replace the evaporator coil for $750 (parts and labor). He said they'll also check for leaks in the lines after presurizing the system, and will repair any they find for no extra charge unless a leak is found in the compressor. Does $750 sound like a good deal? Thanks to all that responded. -- Eric I tink 750 for the coil replacement, leak yst, evacuate and recharge is reasonable. Go for it. Ask for their service/labor waranty. Labor is warranted for 1 year, 5 years on the part. I had Kensington HC come out, and replace the evaporator coil this past Wednesday.. They sent a 3-man team, and did the job in less than 2 hours, and it cost me $750. My house is blissfully cool again. Hopefully there won't be any more leaks in the system now..
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