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coleman coil
help?? Just installed new coleman 2 ton 410a a/c with horizontal coil with txv with a 60,000 btu 80 % heater in attic. Only half of coil getting cold. Can not get subcooling or a good split. I changed txv 2 times. Also replaced freon 3 times. no change???
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 Originally Posted by lioni hvac
help?? Just installed new coleman 2 ton 410a a/c with horizontal coil with txv with a 60,000 btu 80 % heater in attic. Only half of coil getting cold. Can not get subcooling or a good split. I changed txv 2 times. Also replaced freon 3 times. no change???
curious, coming off the furnace, do you have a nice transition duct the longer the transition duct the better, so it spreads out the airflow so it catches the whole coil?
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 Originally Posted by lioni hvac
coil is on furnace
yeah i got that, but the coil is horizontal, correct? which means its lying on its side, did the other coil have a a-coil or a horizontal coil. what was wrong with the old coil? was this a easy swap, or did you modify the duct coming off furnace! how much space is from the furnace top to the horizontal coil.1 ft. or is the coil jammed up against the furnace and did you just fill in the gaps with tape/metal, trying too get a mental picture here!
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I did the same system last week it works fine.
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 Originally Posted by lioni hvac
I did the same system last week it works fine.
ok maybe one of the pros has a suggestion, good luck!
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case coil system laying on its side a coil
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 Originally Posted by lioni hvac
case coil system laying on its side a coil
how long have you been doing this type of work, do you have a co. or work for some one?
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company 15 years first time this happen to me and my friends
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Reuse lineset? Purge lineset? Evacuation to what micron level? Feed tubes freezing one side only? What is the superheat and subcool values? Airflow measured?
More information and maybe a few pics may help.
Yes, I've seen that before and it doesn't mean I like it.
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Yes reuse lineset, yes purge linset, Evacuation good. I pulled blower motor wire and ran a/c All feed tubes froze. Subcooling 3, airflow good my spilt is 10
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Are these
 Originally Posted by lioni hvac
Yes reuse lineset, yes purge linset, Evacuation good. I pulled blower motor wire and ran a/c All feed tubes froze. Subcooling 3, airflow good my spilt is 10
readings correct? You only have 3 degree subcool?
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 Originally Posted by lioni hvac
Yes reuse lineset, yes purge linset, Evacuation good. I pulled blower motor wire and ran a/c All feed tubes froze. Subcooling 3, airflow good my spilt is 10
Are you saying you ran the ac with no blower? This would sure cause all your tubes to freeze.
You need to put the phone down and get back to work!
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