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How to Set a Custom Defrost Schedule
Begin with the defrost timer on normal Operation Mode: The SET CLOCK light is blinking rapidly and
the PROGRAM and DEFROST ON lights are off. If all switches are OFF (Fig. 12), the factory preset
defrost schedule is enabled: 2
AM, 8 AM, 2 PM, 8 PM.
• Determine your own best defrost schedule. The upper set of switches represents the AM hours;
the lower switches represent the PM hours. Allow a minimum of 2 hours between the start of any
two defrost cycles.
• To customize your defrost schedule, begin with all switches OFF (Fig. 12).
• With the SET CLOCK light blinking rapidly, as in normal Operation Mode, slide the switches to the
right that correspond to the hour when each defrost cycle should begin.
• If you want a defrost cycle to begin on the half-hour, slide the two adjacent switches to the right.
For example, to start a defrost cycle at 2:30
PM, Slide switches 2 and 3 to the right in the lower set
of switches.
Custom Defrost Schedule Example #1 (Fig. 13) shows five defrost cycles that begin at 1
AM, 6 AM, 10
AM, 2:30 PM and 8 PM.
Custom Defrost Schedule Example #2 (Fig. 14) shows six defrost cycles that begin at 1
AM, 4 AM, 10
AM, 2:30 PM, 6 PM and 9:30 PM.
During normal operation, leave these switches set on the desired defrost schedule if it is other than the
factory preset schedule.
Fig. 12
Fig. 13
Fig. 14
C
USTOM DEFROST SCHEDULE EXAMPLE #1:
1:00 AM, 6:00 AM, 10:00 AM, 2:30 PM,
8:00
PM
ALL S WITCHES OFF GIVES Y OU T HE
FACTORY PRESET D EFROST SCHEDULE:
2:00 AM, 8:00 AM, 2:00 PM, 8:00 PM
CUSTOM D EFROST S CHEDULE E XAMPLE #2:
1:00 AM, 4:00 AM, 10:00 AM, 2:30 PM,
6:00
PM, 9:30 PM