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AB Industrietechnik srl – Via Julius Durst, 70 – 39042 BRESSANONE (BZ) Italy – Tel: +39 0472/830626 – [email protected] – www.industrietechnik.it
•
Using an on/off humidifier:
The humidification signal is calculated based on the curve indicated below:
H
142
143
100
0
% dehum
CO
2
167
168
165
0
Val_damper
164
141
/ 2
H
100
0
142
% hum
141
/ 2
143
H
142
143
100
0
% dehum
141
/ 2
H
100
0
142
% hum
141
/ 2
143
WDS
WDS
WUS
WUS
H: value of the humidity detected by the internal or remote humidity sensor
WUS: humidifying operation setpoint
% hum: theoretical value percentage of humidification
142
: humidity setpoint
141
: humidity neutral zone
143
: humidity proportional band
Settings for humidification with on/off humidifier:
- select the type of on/off humidifier
006
=2,
- define the on/off humidifier output
025
=16 (DO1) or
026
=16 (DO2) or
027
=16 (DO3) or
028
=16 (DO4) or
029
=16 (DO5),
- turn on humidification
- with an internal humidity sensor
140
=1 (AHU-xxxxH1 models only)
- or with a remote humidity sensor
140
=2,
023
=6 (0..10 V humidity input) and put the JP1 jumper in the “3-2” position,
- humidity neutral zone
141
,
- humidity setpoint
142
,
- humidity proportional band
143
Control is carried out on the humidification operating setpoint WUS =
142
- (
141
/2).
If the humidity detected < WUS -
143
the humidifier is activated, and the
icon is displayed.
If the humidity detected >= WUS, the dehumidifier is disabled and the
icon switches off.
Note: If the frost protection (with
188
=1), condensation alarm or steady ventilation are activated, dehumidification is shut down.
•
humidification authorization for humidifier not managed by the controller:
It is possible to provide winter humidification authorization for humidifier not managed by the controller through the use of
a digital output. The authorization can take place through the presence of ventilation and the winter season.
To use this function, configure a digital output as the “humidification authorization”:
025
=10 (DO1) or
026
=10 (DO2) or
027
=10
(DO3) or
028
=10 (DO4) or
029
=10 (DO5),
The digital output is activated if the fan is active and the season is set to heating.
Otherwise (summer season or no ventilation), the digital output is disabled.
