The repeat cycle timer controls are marked T1 and T2. Control T1
adjusts the length of time the refrigeration unit will operate continuously
before initiating a defrost cycle. Control T2 adjusts the maximum length
of time the refrigeration unit will remain in the defrost cycle
The timer scales indicate an approximate percentage of time based on
24 hours. For example, to set the timer for 6 hours, adjust the control to
25% (6 hours is 25% of 24 hours).
The timer controls have a minimum setting of 14 minutes when set at
c. Adjust the repeat cycle timer (4) control T1 to approximately 25% (6 hours) and control T2 to approximately 2%
(30 minutes). This is the recommended factory setting, however, the controls can be set as desired to best suit the
d. Close the control box panel (3). Install two bolts (1) with new lock washers (2) (1, appendix G).
e. Close and secure the control box cover.
Open right side door.
g. Adjust dual pressure control switch (5) HIGH PRESSure CUTOUT to 305, low pressure CUT IN to 0, and low
pressure CUTOUT to 15 IN. VAC.
h. Close right side door