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RA PRESSURE TEMPERATURE CHART. PSIG F° PSIG F° PSIG F° PSIG F° PSIG F° PSIG F°. 12 RA. RA. RC. R RA. RA. R kPa psig. kPa psig. kPa psig. kPa psig .. for any refrigerant blend. PRESSURE / TEMPERATURE CHART. Refrigerant RA Pressure Temperature Chart – RA is an HFC and is commonly used in residential and light commercial HVAC equipment for air.

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Click here for a new search Print Email. The properties of the new zeotropic blends are somewhat different than the traditional refrigerants.

Zeotropic blends shift in composition during the boiling or condensing process see Figure 2. With the blend you read the saturated temperature next to r410a pt chart pressure in the liquid bubble point column of the chart.

Refrigerant Pressure Temperature Chart

The charging and service procedures are very similar for both single-component refrigerants and zeotropic blends, and the specialized liquid and vapor data correct for the effects of the blends’ temperature glide.

Carrier has trademarked the name Puron which is RA. Cross-contamination of the oils r410a pt chart cause serious issues between the two types of r410a pt chart and it is highly recommended to use separate gauges for service providers.

As the blend changes phase, more of one component will transfer to the other phase faster than the rest. Name Enter your name so we can credit you.

PT Chart – R410A

Capacity Data Center Operation: What can we do to improve the information? Notify me of follow-up comments by email. If you want to include a description then do so r410a pt chart. The changing composition of the liquid causes the boiling point temperature to shift as well.


Because the difference is quite small between the two values some manufacturers’ PT charts will only list one column for these blends. See the R410a pt chart the Author page for information about the author of this article. When checking r410a pt chart subcool condition the technician will measure the temperature of the liquid line, the pressure at that point and subtract the measured temperature from the saturated temperature at the end of the condenser.

If the liquid column is used directly, then the beginning of the coil will be the correct temperature, but the rest of the coil will be too warm.

Because it makes R410w equipment more efficient means the equipment uses less energy and less energy consumption is better for the environment. For these blends, the vapor and liquid pressures are only separated by 1 or 2 psi. Just remember to keep track of the phase of the blend at r410z point you are interested: The saturated ph condition is referred to as the dew point.

To learn more about heating systems and HVAC use this resource. All DX Cooling units Environment: Two-column PT charts are every chaart as useful as the traditional ones.

How to read a pressure temperature chart for super-heat and sub-cooling calculations

This gives RA a higher refrigeration capacity than R By using this form you agree with the storage and handling of your data by this website. Traditional PT r410a pt chart list the saturated refrigerant pressure, in psig, with a column for temperature down the left side. Currently, every manufacturer of residential and light commercial systems offer their main product line which uses RA refrigerant for r410a pt chart air conditioners and heat pump systems.


Upload your photos or documents here! PT charts are most often used for three purposes: Cooling Optimize Data Center Operation: R410a pt chart is checked by measuring the temperature of the vapor line, measuring the pressure, then subtracting the saturated temperature from the measured temperature. The saturated liquid condition is often referred to as the bubble point.

Imagine a pot of liquid sitting on a stove; as it begins to boil it forms bubbles in the liquid. The temperature glide will cause different values for temperature at a given pressure, depending on how much refrigerant is liquid and how much is vapor.

Photo Uploads If you are human, leave this field blank. R410a pt chart to read a pressure temperature chart for super-heat and sub-cooling calculations Issue: The problem with two-column PT charts is that the conditions a t the endpoints of the temperature glide are listed, not the midpoint. Anything you would like to say about these photos? Because the properties of the new zeotropic refrigerant blends are different than traditional refrigerants it’s useful to know how to read a two-column PT chart By Jim Lavelle.

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