Temperature monitoring
Just as is possible for the thermostat, the alarm monitoring can be set with a weighting between S3 and S4 so that
you can decide how much the two sensor values should inuence the alarm monitoring. Minimum and maximum
limits can be set for alarm temperature and time delays. A longer time delay can be set for high temperature alarm.
This time delay is active for pull-down, after defrosting, appliance cleaning and start-up.
Thermostat bands
Thermostat bands can be used benecially for appliances where dierent product types are stored, which requires
dierent temperature conditions. It is possible to change between the two dierent thermostat bands via a contact
signal on a digital input. Separate thermostat and alarm limits can be set for each thermostat band.
For the defrost control, separate defrost stop temperature and max. defrost time can be set for each thermostat
band. For the compressor control it is possible to disable the second compressor in thermostat band 2 if required.
Figure 11: Thermostat band function with two dierent band settings
Night setback of thermostat value
In refrigeration appliances there may be big load dierences between the shop’s opening and closing hours,
especially if night lids/blinds are used. The thermostat reference may be raised here without it having any eect on
the product temperature.
Change-over between day and night operation can take place as follows:
• via an external switch connected to a digital input.
• via a signal from the data communication system.
Figure 12: Thermostat band function with Night setback
Temperature sensor types
For the S3, S4, S5, S7 and S8 sensors, the user can select between the following sensor types:
0 = Pt1000 (Danfoss AKS 11)
1 = PTC1000 (Danfoss EKS 111)
2 = NTC 5k (Danfoss EKS 211)
3 = NTC 10k (Danfoss EKS 221)
4 = User-dened
AK-CC55 Water Loop
© Danfoss | Climate Solutions | 2022.04 BC378540472015en-000101 | 10
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