Digital Inputs; Forced Closing - Danfoss AK-CC55 User Manual

AK-CC55 Single Coil and Single Coil UI
Figure 19: Heating function
º C
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Digital inputs

There are two digital inputs, DI1 and DI2, with dry contact function, and one digital input DI3 with high voltage
signal.
They can be used for the following functions:
Table 6: Function table and DI settings
Function
None
DI Status
Door function
Door alarm
Defrost start
Main switch
Night setback
Thermostat band
Alarm at closed
Alarm at open
Case cleaning
Forced cooling
Open blinds
Coordinated defrost

Forced closing

Shutdown
Light control
Leak detection
Adaptive liquid control
Valve driver alarm at open
Fan alarm at open
Example: If DI1 is to be used to start a defrost, o02 must be set to 4.
Forced closing
The AKV valves can be closed with an external signal ("Forced closing").
The function must be used in connection with the compressor's safety circuit, so that there will be no injection of
liquid into the evaporator when the compressor is stopped by the safety controls and cannot start again (however
not at low pressure – LP).
© Danfoss | Climate Solutions | 2021.02
A Refrigeration
B Neutral zone
C Heat
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Input / Settings menu
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