PsychrometricsSplit system cross plot
Balance a split DX system by crossing the condensing-unit capacity (which rises with suction temperature) against the evaporator/DX capacity (which falls with it). The intersection is the balanced saturated suction temperature. All inputs are per circuit.
Inputs
Unit system
AHU suction temperatures
Condensing unit capacity
Evaporator (DX) capacity
Suction line loss
Saturation-temperature drop from the AHU coil back to the compressor. Refer to a refrigerant piping calculator.
Cross plot
Condensing unit Evaporator (DX)