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These three UPDATED HVAC quick reference polystyrene cards are double sided and designed to be used with Air Conditioners and Heat Pumps to measure the refrigerant charge level in a unit, charge refrigerant, troubleshoot refrigerant based problems, and measure heat transfer to determine if there is a problem.
 

  • Use the P/T Chart to find the Saturated Temperature of the common refrigerants R-32, R454B, R-410A, R-22,       R-407C, R-422B, and R-438A.

  • Use the Guide to determine how to find the Bubble and Dew Saturated Temps of Blend Refrigerants.

  • Use the Refrigerant Weight Chart to calculate the amount of refrigerant needed per foot of tubing R-32, R454B,     R-410A, R-22, R-407C, R-422B, and R-438A.

  • Use the Guide to weigh in the full or partial refrigerant charge into an empty vacuumed unit.

  • Find the Target Subcooling to measure the refrigerant level of systems with a TXV metering device.​

  • Use Subcooling to determine if a system is undercharged, correctly charged, or overcharged.

  • Use Delta T to determine if the system is exchanging heat properly.

  • Find the Target Superheat to measure the refrigerant level of systems with a fixed orifice metering device.

  • Use Total Superheat to determine if a system is undercharged, correctly charged, or overcharged.

HVAC Quick Reference Cards for Refrigerant Charging and Troubleshooting

SKU: QRCRCT
$27.99Price
  • Flexible, Weather and UV Resistant Polystyrene Card Material

    Tested 0°F-130°F

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