Defrost Cycle
The electronic control is programmed to initiate defrost by two different methods. There are (3)
programmed defrost cycles in the control which will initiate a defrost cycle every 8 hours. The unit
does not have a time clock so the defrost cycles cannot be set for any specific time of day.
The electronic controller uses time to initiate the defrost cycle, and temperature to terminate the
defrost cycle. The controller also ha
s an ‘On demand’ defrost feature that will initiate a defrost cycle
when the temperature differential between the evaporator temperature and the air temperature is
more than 15 degrees for 5 minutes after 30 minutes into the refrigeration cycle.
Control Factory Settings
The control parameters are set at the factory and cannot be manually changed in the field. Control
parameter changes can only be made by downloading a new set of parameters using a program chip
supplied by Federal Industries
TAB
PARAMETER DESCRIPTION
RSSL
CONFIGURATION
Controller Operation Temperature
Units
Degrees
Fahrenheit
Defrost Termination Method
Evaporator Sensor
SET-POINTS
Cut-In Warm
40ºF
Cut-Out Warm
34ºF
Cut-In Cold
40ºF
Cut-Out Cold
24ºF
COMPRESSOR
Compressor Minimum On Time
5 minutes
Compressor Maximum On Time
60 minutes
DISPLAY
Defrost Display Lock (display indication
during defrost)
SHOW CURRENT
TEMPERATURE
DEFROST
Defrost Termination Temperature
45ºF
Time to First Defrost (hh:mm)
8 hr
Time to subsequent Defrost
8 hr
Defrost Max Duration
30 minutes
Refrigerated Self-Serve Merchandiser (High Profile)
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