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

Danfoss 84B8269
A
r01
r01
t
º C
r62
B
C
A
B
C
Refrigeration
Neutral zone
Heat
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 o is set as an oset value below the current cut-out limit for the refrigeration
thermostat. This ensures that refrigeration and heating do not occur simultaneously. The dierence 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
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
Input / Settings menu
Setting
DI1
DI2
o02
o37
None
+
+
0
DI Status
+
+
1
Door function
+
+
2
Door alarm
+
+
3
Defrost start
+
+
4
Main switch
+
+
5
Night setback
+
+
6
Thermostat band
+
+
7
Alarm at closed
+
+
8
Alarm at open
+
+
9
Case cleaning
+
+
10
Forced cooling
+
+
11
Open blinds
+
+
12
Coordinated defrost
+
13
Forced closing
+
+
14
Shutdown
+
+
15
Light control
+
+
16
Leak detection
+
+
20
Adaptive liquid control
+
+
21
Door fan stop
+
+
29
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 BC365212986197en-000201 | 21
AK-CC55 Compact