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404a Refrigerant Temperature Pressure Chart – techtownforum.com R404a Refrigerant Pressure Chart Temperature (Fahrenheit) Pressure Temperature (Celsius) R404a - 50°F - 45.6°C 0.1 psi - 45°F - 42.8°C 2 psi - 40°F - 40°C 4.3 psi - 35°F - 37.2°C 6.8 psi - 30°F - 34.4°C 9.6 psi - 25°F - 31.7°C 12.7 psi
When conducting repairs or diagnostics on a commercial cooler or freezer with R404a refrigerant, checking the pressure is key. However, in order to know the proper pressure, you also need to identify the correct corresponding temperature. The chart below helps you know what pressure R404a should run at.
R134a Pressure-Temperature Chart – techtownforum.com R134a Pressure-Temperature Chart Temperature Pressure -40°F (-40°C) 14.8 PSIG -35°F (-37.2°C) 12.5 PSIG -30°F (-34.4°C) 9.8 PSIG -25°F (-31.7°C) 6.9 PSIG -20°F (-28.9°C) 3.7 PSIG -15°F (-26.1°C) 0.1 PSIG -10°F (-23.3°C) 1.9 PSIG -5°F (-20.6°C) 4.1 PSIG 0°F (-17.8°C) 6.5 PSIG
To help service technicians better understand its properties, below are some common facts and a helpful R134a pressure chart for commercial refrigerators. Major Properties of R134a Refrigerant. Boiling point: -14.9°F (-26.1°C) Critical temperature: 252°F (122°C) Auto ignition temperature: 1,418°F (770°C) Ozone depletion level (ODL): 0
Here’s a look at some of the best alternatives to R-22 and some of their characteristics. R-422C (One Shot-C®)is versatile, replacing R-22 for low- and medium-temperature uses, as well as R-402A, R-402B, R-404A, R-408A, R-502, and R-507A for other applications. It is designed for all mineral oil, alkylbenzene, and polyolester lubricants.
Suction line should be a maximum of 65*F and not any higher or you are not cooling the compressor properly. On most compressors, 20*-40*SH, not any lower, not any higher. Or again, it’s too much heat. Refrigerant gauges and manifolds are used in wide variety applications.
Water Column to PSI Conversion Formula. To convert WC to PSI, the formula is simple. Take your WC measurement and divide it by 27.708 to get the measurement in PSI. Formula: WC ÷ 27.708 = PSI. For example, if you divide 10 inches WC by 27.708, it converts to about 0.3609067 PSI. Example: 10 in. WC ÷ 27.708 = 0.3609067 PSI.
U.S. Refrigerant Phase Out Chart & Info; Global Warming Potential of Refrigerants; What Happens If You Put R134a in an R12 System? R134a Pressure Chart for Refrigerators, Prep Tables & More; What is R134a Replacement? R12 to R134a Conversion Chart & Formula; Show all articles ( 47 ) Collapse Articles
HFC stands for hydrofluorocarbons. HFCs are commonly used refrigerants in most cooling units globally. The most widely used HFC refrigerants include R-404A, R-410A, R-32, R-134a, and R-407C. HFCs are used in residential air-conditioners, automotive, and industrial refrigeration. HFC refrigerants became popular in the early ’90s following the ...
The old hot gas defrost ones never stopped. Quick troubleshooting is to look at the evaporator from the back and note frost amount and coverage. Then feel the liquid line coming in. And the fans. You now know if you need gauges and temp probes. Why; If the liquid line is warmer than outside ambient- Condenser problem.