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09-02-2010, 11:41 PM #1
Domestic fridge/freezer pressures
Hi All.
My normal job is in installation of splits/add-ons using R22 and R410.
My fridge and freezers at home are giving me trouble.
1. Freezer. R143. Cabinet temperature slowing decreasing - currently 5.4 C. Fitted piercing valve on suction line. Pressure about 3 psi. What should the running pressure be?
2. Fridge/freezer in garage. R12. Lowest cabinet temperatures are 4.9 and - 9 C. Want to add some SP34E. What pressure should I be expecting on suction?
3. Chest freezer. R12. Lowest temperature - 13 C. Again to top up with SP34E. What is an ideal suction pressure.
Many thanks
Chris Siers
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10-02-2010, 12:41 AM #2
Re: Domestic fridge/freezer pressures
chris , how long have you been working on a/c- fridge ? do you normally guess the temp or have you got any comparitors to see what the psi is temp= happy guessing
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12-02-2010, 02:15 AM #3
Re: Domestic fridge/freezer pressures
dont know about manufacturers now,low temp stuff was 0 psi or less,westinghouse fridges where similar.
probably not handling the heat chrismmm to beer or not to beer...........lets drink breakfast
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