12
MAINTENANCE INSTRUCTIONS (continued)
3. Press the
SET
key again to access the differential. The LCD will display the
current differential, and the DIF1 annunciator will blink off and on to indicate that
control is in the differential mode.
IMPORTANT
: DO NOT adjust the differential settings of the refrigeration
system. Field adjustments of the differential settings must be made by qualified
refrigeration personnel only. Unauthorized adjustment of the differential settings
will void the warranty.
Press either “up arrow” to increase the differential, or “down arrow” to decrease
the differential to the desired setting. Factory differential is 3
°
F.
4. Press the
SET
key again to access the Heating / Cooling mode. The LCD will
display the current mode. Either “C1” for cooling or “H1” for heating. The
control must be set to C1 for proper operation of the cold pan.
5. Press the
SET
key again to complete programming. Programming ends
automatically if no keys are pressed for 30 seconds. Any settings that have been
input to the control will be accepted at that time.
6. Control settings are stored in non-volatile memory. Loss of power to the unit will
not require reprogramming.
IMPORTANT:
DO NOT adjust the differential settings of the refrigeration system.
Field adjustments of the differential settings must be made by qualified refrigeration
personnel only. Unauthorized adjustment of the differential settings will void the
warranty.
