Dan
foss
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 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
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