Daikin UATYA180BFC3Y1 [26/356] Humidity control

Daikin UATYA160BFC3Y1 [26/356] Humidity control
Translation from original instructions
Packaged Rooftop
26
We reserve the right to make changes without any prior notice.
UATYA
4P645203-1
5.4 humidity control
Humidity control devices are managed according to the value measured by the reference probe. The measured value
is compared with the desired value (setpoint), after which the system calculates the di󰀨erence between these values
and then enables the most suitable devices based on this di󰀨erence.
The proportional band identies the control range of the air conditioner system and it is set up with the same values
for both humidication and de-humidication.
The dead zone identies the range around the setpoint within which the devices are not enabled (it is used to prevent
oscillations in the setup value).
The diagram below shows the behaviour of humidication and de-humidication devices.
HU4/HU9
100
0
%
HU4/HU9 HU5/HU10
HU1/HU6
SdR %-g/kg
HU5/HU10
Fig. 8 Graphical representation of humidity control devices
The parameters involved are shown in the table.
Parameter Min Max UM Description
HU1 HU2 HU3 % Relative humidity setpoint
HU4 0.0 25.0 % Relative humidity control di󰀨erential
HU5 0.0 10.0 % Relative humidity control neutral area
HU6 HU7 HU8 g/kg Absolute humidity setpoint
HU9 0.0 10.0 g/kg Absolute humidity control di󰀨erential
HU10 0.0 10.0 g/kg Absolute humidity control neutral area
HU11 0 1 - Humidity value control type

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