Night Setback Of Thermostat Value; Appliance Cleaning - Danfoss AK-CC55 User Manual

AK-CC55 Single Coil and Single Coil UI
signal on a digital input. Separate thermostat and alarm limits can be set for each thermostat band – also for the
product sensor.
Figure 7: Thermostat band function with two different band settings

Night setback of thermostat value

In refrigeration appliances there may be big load differences 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 effect 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 8: Thermostat band function with Night setback

Appliance cleaning

This function makes it easy for the shop's staff to carry out a cleaning of the appliance according to a standard
procedure. Appliance cleaning is activated via a pulse signal – as a rule via a key switch placed on the appliance or
via the AK-CC55 Connect mobile app.
Appliance cleaning is carried out via three phases:
1. At the first activation, the refrigeration is stopped, but the fans keep on operating in order to defrost the
evaporators. "Fan" is shown on the display.
2. At the second activation, the fans are also stopped and the appliance can now be cleaned. "OFF" is shown on the
display.
3. At the third activation, refrigeration is recommenced. The display will show the actual appliance temperature,
o97 setting.
When appliance cleaning is activated, a cleaning alarm is transmitted to the normal alarm recipient. A later
processing of these alarms will document that the appliance has been cleaned as often as planned.
There are no temperature alarms during appliance cleaning.
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