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Setting up a regular or timed Defrost Off-Cycle
• The controller enforces the following behavior:
• At power up, the initial Defrost Interval (dI) does not have a Defrost Cycle (dFt).
• Subsequent defrost intervals (dI) begin with the selected dFt value.
• All defrost intervals have the same length. To set up a regular or timed defrost cycle: 1. Select a dI value between 2
hours and 24 hours.
Note: A dI value of 0 indicates no defrost interval. 2. Select a dFt value between 1 minute and 99 minutes.
Control behavior when manually starting or stopping a Defrost Off-Cycle
• The controller enforces the following behavior:
• Manually start a Defrost Cycle. The control returns to normal On/Off operation after the defrost cycle time (dFt) is
complete.
• Manually stop a Defrost Cycle. The defrost cycle time (dFt) is terminated and the control is returned to normal On/Off
operation
.
Manually starting and stopping a Defrost Cycle (SdF)
• To manually Start/Stop a Defrost Cycle (SdF):
• Select a Defrost Interval (dI) value of 0.
• Select a dFt value between 1 minute and 99 minutes.
• Select an SdF parameter value of 1 during normal On/Off operation to start a defrost cycle.
• Or, change the SdF value to 0 during a defrost cycle and return to normal On/Off operation. See the figure below.