SA = Tf - Ts
Tf = refrigerant temperature at the evaporator outlet (° C)
Ts = saturation temperature (° C)
For the line Split the recommended range is from 5 to 7 ° C, with the equipment working under the conditions according to standard AHRI 210.
Example:
Tf = temperature measured at the evaporator outlet. : 12
Ps = 70 psi
Ts = saturation temperature: 5 ° C
SA = Tf - Ts
SA = 12-5
SA = 7 ° C
EXERCISE
Calculate the SA to a device that works with R22, in normal conditions
