Heating Function (Only With Custom Set-Up); Digital Inputs; Forced Closing - Danfoss AK-CC55 Compact User Manual

AK-CC55 Compact

Heating function (only with custom set-up)

The heating function is used to prevent the temperature from becoming too low, e.g. in a cold room, etc. The limit
for when the heating function cuts off is set as an offset value below the current cut-out limit for the refrigeration
thermostat. This ensures that refrigeration and heating do not occur simultaneously. The difference for the heating
thermostat has the same value as for the refrigeration thermostat. To prevent that the heating thermostat cuts in
during short-term drops in air temperature, a time delay can be set for when to change from refrigeration to
heating.
Figure 24: Heating function
º C
t
A
B
C

Digital inputs

There are two digital inputs, DI1 and DI2, with dry contact function. They can be used for the following functions:
Table 5: 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
Door fan stop
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").
© Danfoss | Climate Solutions | 2022.08
A Refrigeration
B Neutral zone
C Heat
r01
r62
r01
Input / Settings menu
DI1 DI2
o02 o37
+ +
+ +
+ +
+ +
+ +
+ +
+ +
+ +
+ +
+ +
+ +
+ +
+ +
+
+ +
+ +
+ +
+ +
+ +
+ +
BC365212986197en-000201 | 21
Setting
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
20
21
29