ems100
Product Manual, Issue 4
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Page 55
5.3.24 Defrost termination temperature (dtd)
Display
Description
Defines the temperature to end the defrost cycle.
Ending defrost cycles on temperature minimizes the duration of defrost cycles.
Considerations
•
Must be set above the set point (SP) plus differential (dIF) temperature.
• Must be set below IPd.
• If icing up occurs, review the values of the defrost parameters.
Range
1 to 30ºC (34 to 86ºF)
Global default
10.0°C (50°F)
5.3.25 Condenser high temperature (Ht)
Display
Description
Defines the maximum temperature measured in the refrigeration system by
monitoring the condenser sensor.
On reaching the condenser high temperature (Ht), the controller disables the
compressor and activates an alarm.
Considerations
• Is not used with CO2 (R744) coolers.
• Requires a condenser sensor.
• To set the condenser high temperature (Ht), measure the refrigeration system
temperature when the condenser is 75% blocked.
• To disable, set below 50ºC or 122ºF.
Range
0.0 to 125ºC (32 to 257ºF)
Global default
0.0ºC (32ºF) - disabled.
5.3.26 Activity frequency (AF)
Display
Description
Defines the minimum number of door openings or motion counts to indicate an active
30 minute period in the self-learning matrix, as described below.
Considerations
See below.
Range
See below.
Global default
00 (low frequency)
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