Johnstone Supply is a leading wholesale distributor for HVACR equipment, parts and supplies available and in-stock at local branches.

Complete pressure-temperature charts for all refrigerants with interactive features, comparison tools, and downloadable resources. Current market prices for all common refrigerants with cost analysis, …

Using an HVAC refrigerant pressure temperature chart is necessary to be sure a unit is operating correctly. Below are three free pressure temperature charts that can be used to troubleshoot an …

Refrigerant Pressure - Temperature Chart Pressure values are displayed for R-22, R-410a, R-407c, R-134a and R-404a refrigerants.

Temperature and pressure diagram for constant boiling refrigerants - imperial and SI units. The Engineering ToolBox provides a wide range of free tools, calculators, and information resources …

Based on year-round mean conditions at 45° latitude and varies with the time of the year and the weather patterns.

Use gauges to determine the pressure at the condenser coil outlet, and a thermometer to get the actual temperature at the same point. Use the Bubble column to get the bubble temperature. Subcooling = …

To obtain the Bubble Point of saturated refrigerants below 50°F (10°C), use its Dew Point temperature minus the value listed below: MP series use 10°F (5°C), 9000 use 11°F (6°C), HP80 and HP81 use …

For a single-component or azeotropic refrigerant, the operating pressure for the low side of a system can be found by cross referencing the desired coil temperature on the PT chart. For high-glide blends, …

R1234YF PT Chart- [R-1234YF] R1234ZE PT Chart- [R-1234ZE] R124 PT Chart- [R-124] R125 PT Chart- [R-125] R13 PT Chart- [R-13] R13B1 PT Chart- [R-13B1] R134A PT Chart- [R-134A]