Refrigerated Self-Serve Merchandiser (High Profile)
Page 18
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 has 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
RSSM
CONFIGURATION
Controller Operation Temperature Units
Degrees Fahrenheit
Defrost Termination Method
Evaporator Sensor
SET-POINTS
Setting
“1” Cut-In (Warmest Setting)
39ºF
Setting “1” Cut-Out (Warmest Setting)
34ºF
Setting “2” Cut-In
39ºF
Setting “2” Cut-Out
32ºF
Set
ting “3” Cut-In
39ºF
Setting “3” Cut-Out
31ºF
Setting “4” Cut-In
39ºF
Setting
“4” Cut-Out
27ºF
Setting
“5” Cut-In
39ºF
Setting “5” Cut-Out
25ºF
Setting “6” Cut-In
39ºF
Setting “6” Cut-Out
23ºF
Setting
“7” Cut-In
39ºF
Setting “7” Cut-Out
22ºF
Setting “8” Cut-In
39ºF
Setting “8” Cut-Out
21ºF
Setting “9” Cut-In (Coldest Setting)
39ºF
Set
ting “9” Cut-Out (Coldest Setting)
20ºF
COMPRESSOR
Compressor Minimum On Time
5 minutes
Compressor Maximum On Time
60 minutes
DEFROST
Defrost Termination Temperature
45ºF
DEFROST
Time to First Defrost (hh:mm)
8 hr
Time to subsequent Defrost
8 hr
Defrost Max Duration
30 minutes
