Refrigerant Migration Calculator

Calculate refrigerant charge migration and minimum crankcase temperature to prevent liquid slugging.

Total refrigerant charge in the system.
lb
Volume of oil in compressor crankcase.
quarts
Lowest expected ambient temperature.
°F

Results

Maximum Refrigerant in Oil-lb
Oil Dilution Percentage-%
Minimum Safe Crankcase Temp-°F
References: ASHRAE Handbook - Refrigeration, Chapter 3. Oil management and refrigerant migration in low-temperature conditions.