Danfoss AK-CC55 User Manual

Danfoss 84B8269
A
r01
r01
t
º C
r62
B
C
A
B
C
Refrigeration
Neutral zone
Heat
Figure 19: Heating function
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
Input / Settings menu
Setting
DI1
DI2
DI3
o02
o37
o84
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
Valve driver alarm at open
+
+
22
Fan alarm at open
+
+
23
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).
AK-CC55 Single Coil and Single Coil UI
© Danfoss | Climate Solutions | 2021.02 BC364229688105en-000101 | 20

Danfoss AK-CC55 Specifications

General

Brand	Danfoss
Model	AK-CC55
Category	Controller
Language	English