It can be used for recharging refrigerant, or to diagnose an a/c system based on pressure readings from your gauges. The three columns are titled high side pressure columns, low side pressure columns, and temperature columns. Refrigerant R134a or HFC-134a is a commercially available hydrofluorocarbon (HFC) refrigerant for use as a long-term replacement for R-12 in new equipment and for retrofitting medium temperature CFC-12 systems. If you own a refrigerator built after 1995 chances are it uses 134a coolant. According to the pressure-temperature chart: It is saturated ... Refrigerator Frigidaire R134a Service Data Sheet. An air conditioner using Refrigerant R-134a has a low-side pressure of 35 psig and a temperature of 40 degrees Fahrenheit. C. Stem and Nut S. High Side O-Ring D. Hand-wheel T. Low Side O-Ring E. Complete Stem Assembly with Knob (2 pcs) U. R34a High Side Manual Coupler Complete F. R1234yf/R134a High Side Gauge (Red) Complete V. R134a Low Side Manual Coupler Complete G. R1234yf/R134a Low Side Gauge (Blue) Complete AA. Forane 134a Pressure Temperature Chart Author: Arkema Inc. Subject: Forane 134a Pressure Temperature Chart Keywords: Forane 134a, R-134a, Pressure Temperature Chart, PT Chart, HVAC, refrigeration, air conditioning, refrigerant gas Created Date: 10/4/2012 11:23:04 AM It's running about an 80% duty cycle to maintain 36f. Here at On-Time Appliance we use the large 30# cans but this is not piratical for the average person who owns a refrigerator. Refrigerant R134a or HFC-134a was developed to meet these needs. The low side pressure … Usually, it is called an AC pressure chart but because we are talking about the 134a refrigerant, therefore, we will address it as an R134a pressures chart . The refrigerator is having issues. I have found though 134a is 134a the only difference … It has been in use since the early 1990’s and now, in 2019, we are beginning to see it’s popularity wane with the rise of the new HFO refrigerant known as R-1234yf. I am going to let it cool on down, but the reason I desided to check it out on the pressures is that the it was time to clean the coil, and I noticed that the suction line was frosted over, and then it would thaw a little. It should be under 20 at most, anything more will not give freezing. Low Side Pressure-2 to 6 psig ( -14 to 41 kPa)-2 to 6 psig (-14 to 41 kPa) High Side Pressure (last 1/3. Approximately 2/3 frosts, the remaining third condenses moisture but won't freeze the condensate. R134a ice & water - automatic defrost side by side models (2 pages) 85 to 105 psig (586 to 724 kPa) 120 to 135 psig (827 to 931. The freezer unit is fine. R-134a is the most common refrigerant found in automobiles today. It is unable to frost the entire evaporator coil. That being said, there are still millions of … R134a Pressure Gauge Chart This chart details how ambient temperature correlates with the system refrigerant charge pressure, and how it affects high and low side psi readings. 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