Daikin R-32 rooftop Series, Operation Manual

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Translation from original instructions
Packaged Rooftop
28
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UATYA
4P645203-1
The value set in parameter “HU11” identifies the reference humidity value, as follows:
- 0 = relative humidity;
- 1 = absolute humidity.
5.4.1 Relative humidity control with proportional control
If parameter “HU11” is set to “0”, humidity control is performed according to the relative humidity value.
Relative humidity is managed according to parameter “HU14”, which identifies the probe on which the controller
must guarantee maintenance of the entered setpoint, and on parameter “HU12” that determines the type of humidity
control.
The parameters involved are shown in the table.
The values of the parameters are representative. In specific cases, different values can be set.
Parameter Value UM Description
HU4 5.0 % Relative humidity control differential
HU5 0.5 % Relative humidity control neutral area
A graphical representation is shown below.
HU4
100
0
%
HU4 HU5
HU1
SdR %
HU5
Fig. 9 Relative humidity control