R404a Freezer Pressures. R134a Pressure Temperature Chart The operating pressures for a 404A freezer typically range between 170 to 180 psi on the high side and 18 to 20 psi on the low side We are, of course, talking about 404A liquid pressure
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Pressure/temperature table for R-502, R-404A, and R-452A is shown in Figure 1 There had to be a replacement for the Ozone damaging refrigerants of the past and the successor was the HFC R-404A that we all know of today
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The normal operating pressure for R-404A in a freezer at a temperature of 70 degrees Fahrenheit and a suction temperature of 30 degrees Fahrenheit would be around 9.6 psi Example: What is the pressure of R404A at 85°F? Just check the R404A PT chart below and you will see that the pressure of 404A liquid at 85°F is 189.5 psig and the pressure of 404A vapor is 187.5 psig at the same temperature. Pressure/temperature table for R-502, R-404A, and R-452A is shown in Figure 1
Low car AC refrigerant — How to diagnose — Ricks Free Auto Repair. R-404A rose to prominence in the late 1990's with the phasing out of CFC and HCFC refrigerants like R-12 and R-502 The normal operating pressure for R-404A in a freezer at a temperature of 70 degrees Fahrenheit and a suction temperature of 30 degrees Fahrenheit would be around 9.6 psi
Semi Hermetic R404A Freezer Water Cooled Compressor Condensing Unit for. R-404A and -R-452A possess similar energy efficiency and capacity characteristics to R-502 | 11+ years being an appliance technician with factory training