Replycurious, coming off the furnace, do you have a nice transition duct the longer the transition duct the better,Originally Posted by lioni hvac
so it spreads out the airflow so it catches the whole coil?
Regular Guest
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???
banned reincarnate
curious, coming off the furnace, do you have a nice transition duct the longer the transition duct the better,
Regular Guest
coil is on furnace
Regular Guest
I did the same system last week it works fine.
banned reincarnate
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!
banned reincarnate
ok maybe one of the pros has a suggestion, good luck!
Regular Guest
case coil system laying on its side a coil
banned reincarnate
how long have you been doing this type of work, do you have a co. or work for some one?
Regular Guest
company 15 years first time this happen to me and my friends
Regular Guest
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.
Regular Guest
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
Regular Guest
Also feed tubes does not freeze with system not running.
Professional Member*
readings correct? You only have 3 degree subcool?
Professional Member
had one one time installers installed txv didn't take out the flow rater, low suction poor split unit was charged by subcooling to specs
Regular Guest
Yes i removed flow rater.
Professional Member
sounds like you got a bad evap coil form the factory and its restricted
get your post up and get your pro membership and post this on the pro side
Banned
You need to know subcool and superheat. Your subcool should be higher than 3. Sounds undercharged. What was the superheat?
Professional Member*
Ditto
Originally Posted by ladyfire3374:
"I used to wake up excited about the challenges of the day. Now the anticipation level is somewhere between a root canal and a colonoscopy."
Professional Member
Orifice clogged from install?
Professional Member
Any filter dryers that could be pluged?
Air conditioning to all and to all a good night
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