Goodman Subcooling Chart is your go-to resource for maintaining optimal efficiency and performance of your HVAC system. In this comprehensive guide, we'll explore the ins and outs of the Goodman Subcooling Chart, how it works, and its applications in residential and commercial systems.. 2. Convert saturation pressure=temperature with a Pressure-Temperature chart (Go to PT Chart).Not all evaporators have a suction service port, you can still take the pressure at the condenser's service port in air conditioning mode.If a reading is obtained at the condenser on a heat pump, use the common suction pressure port because there is a pressure drop through the reversing valve.
HVAC App to Calculate Subcooling. Our Pressure Temperature Chart for the selected refrigerant is available for quick access; just use the button labeled (P/T).. Use the refrigerant drop down for access to over 100 refrigerants.. Plus and minus buttons add and subtract values in intervals of 1 to their related input fields.. Step 3 - subtract required subcooling (Step 1) from converted temperature (Step2) - This is the required liquid line temperature. Step 4 - Measure liquid line temperature. If the measured liquid line temperature does not equal the required liquid line temperature: Superheat Charging Chart - Cooling - non-TXV - R410A & R22