Danfoss AK-CC55 Multi Coil User Manual page 18

AK-CC55 Multi Coil
The controller measures the humidity via a 0 – 10 V signal from a humidity sensor and by means of a DO relay it can
activate a humidifier or a de-humidifier.
High and low humidity alarm limits can be set to generate a humidity alarm.
Humidity control is disabled when main switch is OFF, at manual control, at case shutdown, at forced closing mode,
at door open, if cooling is stopped, at humidity sensor error and at case cleaning.
It is possible to define whether humidity control is enabled during defrost or not.
Figure 20: Humidity control
y
A
B
C
A Max and Min temperature range can be defined wherein the humidity control is enabled. Upper and lower
differential is fixed at 1K.
Figure 21: Humidifier control
y
100%
A
SP
B
If the humidity gets below the SP, then humidification is started via a DO signal to a humidifier.
If the humidity increases to SP + humidity differential, then humidification is stopped.
© Danfoss | Climate Solutions | 2022.08
x Time
y Temperature
A Humidity max temp. difference
B Humidity min temp. difference
C Humidity control enabled
x
x Time
y Humidity
A Humidity difference
SP Setpoint
B Humidifier
x
BC365022028193en-000201 | 18