What's the big secret or is it that none of the internet professionals know the answer? Here it is from Frigidare Service Data Sheet #218758400 and these pressures work for most residential systems using R134a refrigerant @ 65*F Ambiant .
Low Side Pressure:
Cut-in = 6 to 13
Cut-out = -2 to +2
High Side Pressure: 105 - 115
Wattage: 150 - 220
Amps (Running): 1.3 - 1.8
The 1993 Aerostar does not use R-134a. It uses R-12.
Is r-22 Freon compatible with r-134a freon?
Connect guage & 134a freon to low pressure on the evaporator add 1lb at a time
25-40 psi
That is a reference to automotive freon type 134a
No.
please give me pressure knowledge for refrigerator
134A 134A 134A
Freon R-134a.
Freon R134a has different names. It's also known as 1,1,1,2-tetrafluoroethane, HFC-134a, Freon 134a, SUVA-134a Genetron-134a, Forane-134a KLEA-134a. (Depending on the company or manufacturer)You can easily find the MSDS by searching it as R134A or SUVA 134A, that replaced Freon 12.Here are some links that might help you out.http://www.refrigerants.com/msds/r134a.pdfhttp://msds.dupont.com/msds/pdfs/EN/PEN_09004a2f8000721c.pdf
You need to convert the AC system to R-134a type freon first (retrofit kit). Then you charge it on the low pressure side.
134A FREON IS USED.