Original message
| gabrielnorbac
 |  "help again 134a help"
, posted Mon 6 Oct 11:41  
help again thank you for all your help residential refrigerator french doors frezer on the bottom ok in an a/c residential with R22 your gauge needs to read more that 30F to prevent freeze on suction line I know how works on a/c in residentialrerigerator my suction line keeps frezen up Igot one service valve to put the freon can someone tell me the temperature and pressure on chargin side to prevent freezen up compressor 1/4 134a already got some great opinions related to the superheat I just need complement everything and thank you also A tecnhnician beggan this work he never show up again on suction line it's 5/16 he put a piece of 1/4 another piece 5/16 other couple 1/4 again 5/16 how ban acan this affect I know affect but how bad
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Replies:
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| gabrielnorbac
| "Re(1):help again 134a help" , posted Tue 7 Oct 09:24
TO SHOCK THERAPY this is my own refri a dummy technician was working on my refrigerator he just left I work on residential a/c to me refrigerator walkins are a little diferent and I have all the tools if I'm asking again is because I follow yours intructions and still having the same problem and I thing the dummy tech brougth me a bigger compressor I'm not doing work for anyone else also I thoug you were more profesional cause this forums are for people who needs help not for be complain
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| | Silvertop
| "Re(2):help again 134a help" , posted Tue 7 Oct 19:07:
Your suction pressure is to high, try 5psi and the frost should go away, my have to go to 4psi. System is very sensistive
Worked on a fridg 5.62ozs 5lb suction pressure = -2 degrees in the evaporator compartment after 24hrs
One step at a time
[this message was edited by Silvertop on Tue 7 Oct 19:40] |
| Jojo98
| "Re(1):help again 134a help" , posted Mon 6 Oct 22:24
If you don't have the tools nor the knowledge, how do you plan to repair this appaliance?
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| Schock Therapy
| "Re(1):help again 134a help" , posted Mon 6 Oct 19:41
Is this a different refrigerator you are working on now? Are you charging people money to work on their fridges, and asking us how to do it?
If you are trying to service refrigeration equipment without the basic tools; Guages, a scale (or charging glass), and a good thermometer, I suggest you step aside and let qualified people earn a living!
If you are fixing your own fridge, then follow the advice you have already been given. Asking the same question a different way is not likely to get you a different answer!
It's only a shock if your not expecting it!
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| gabrielnorbac
| "Re(1):help again 134a help" , posted Mon 6 Oct 15:16
in the plate said 5ozs 134a I donot have a scale how can I know is enough
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| | Silvertop
| "Re(2):help again 134a help" , posted Mon 6 Oct 19:30
Sunday Shock Therpy and Jo98 explained how to read the refrigerent pressure verses temperature. If you don't have the equipment and don't have the experance to chrage by pressure and temp to get your results then you need to call a tech. Sorry we can't help
One step at a time
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| Silvertop
| "Re(1):help again 134a help" , posted Mon 6 Oct 14:20
Are you converting the fridge over from R-12?
If not you can look on the name plate to find the correct charge.
If you don't have scales will need to get the refirdgent to like -5 or -10 to pull the freezer compartment down to at least -2 to keep ice cream. You should be down to around 1 or 2 lbs on the low side of the gauges to do this.
With refridgeration in a household unit you need a good vacuum and weight the charge. They are very sensitive becauce you are dealing with a few ozs of refridgerent to begin with.
Go to the Du Pont web sight and they have the conversion charts there
One step at a time
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