Heating Function (Application 4 Only); Digital Inputs - Danfoss AK-CC55 Multi Coil User Manual

AK-CC55 Multi Coil
Figure 22: Dehumidifier control
y
100%
SP
A
B
If the humidity rises above the SP, then dehumidification is started via a DO signal to a dehumidifier.
If the humidity drops below the SP – Humidity differential, then dehumidification is stopped.

Heating function (application 4 only)

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 23: Heating function
º C
t
A
B
C

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 5: Function table and DI settings
Function
None
DI Status
Door function
Door alarm
© Danfoss | Climate Solutions | 2022.08
x Time
y Humidity
SP Setpoint
A Humidity difference
B Dehumidifier
x
A Refrigeration
B Neutral zone
C Heat
r01
r62
r01
DI1
o02
+
+
+
+
Input / Settings menu
DI2 DI3
o37 o84
+ +
+ +
+ +
+ +
BC365022028193en-000201 | 19
Setting
0
1
2
3