Defrost Timer Calculator

Calculate defrost frequency and duration.

Thermal measurement in specified units (°F, °C, or K).
°F
Moisture content in air, usually as percentage.
%
Time measurement in days.

Results

Defrosts per Day:
Value expressed as a rate (per unit).
-
Defrost Duration:
Calculated ratio between values.
-min
Drain Time:
Calculated time or duration.
-min
Reference: ASHRAE/IIAR Standards. Defrost scheduling guidelines.