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Thread: R22 low subcooling
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21-06-2016, 03:54 PM #1
R22 low subcooling
r22 2 ton goodman no txv. outside air temp 90.31 deg. split temp air intake and best register.low side 67, high side 218. superheat 18 subcooling 1.3. tech came out said system has noncondensables. want to recover *****,clean evap coils and pull vacuum. recharge. r22 is very expensive, could he just pump down,clean coils, vacuum and recharge?
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21-06-2016, 08:40 PM #2
Re: R22 low subcooling
It depends, what is the legal stance were you are with regards to using R22 as it is now a banned refrigerant.
Other than that, if the refrigerant has non-condensibles then it can be cleaned but that costs money also.Brian - Newton Abbot, Devon, UK
Retired March 2015
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21-06-2016, 09:18 PM #3
Re: R22 low subcooling
still have here in texas. 450 dollars 30 lb bottle.
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22-06-2016, 02:32 AM #4
Re: R22 low subcooling
tech came. recovered my ***** to clean bottle.cleaned evap and cond coils. checked amps on fans. all good. vacuumed sytem. added ***** back. charged me for 1 lb. new numbers are inside wet bulb 60f. outside dry bulb 84. low press 70 high press 178. SH 1.6...SC 4.7... target SH 8.6 on feildpeice. he said im good and left. 625 dollars. hope it works. feedback please.
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22-06-2016, 08:57 AM #5
Re: R22 low subcooling
Last edited by mikeref; 22-06-2016 at 09:02 AM. Reason: Currently one AU $ is 75 Cents Merican
To the optimist, the glass is half full. To the pessimist, the glass is half empty.
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22-06-2016, 11:22 PM #6
Re: R22 low subcooling
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23-06-2016, 03:46 PM #7
Re: R22 low subcooling
your right about that. 86 degrees in the house. 88 outside. on the upside, less humidity in here.
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23-06-2016, 08:07 PM #8
Re: R22 low subcooling
I would remove refrigerant very slowly until the superheat is at least 10F... and hope the valves are not broken.