EN
UAB AMALVA we reserve the right to make changes without prior notice
28
C5.1-16-03-v1
2.5.2.7. Humidity control
Humidity control function is designed for maintenance of air humidity determined
by the user. For proper operation of the function one or two additional humid-
ity sensors shall be connected, depending on where humidity will be maintained.
There are two modes for maintenance of humidity:
• Supply air. The determined humidity of supply air is maintained, using the
supply air duct humidity sensor (B9).
• Room air. The determined humidity of indoor air is maintained, using the room
air or exhaust air duct humidity sensor (B8). The supply air humidity limit is set
using the duct humidity sensor or hydrostat (B9).
One of the below methods can be chosen for maintenance of the determined
humidity:
• Humidication of air. There is a control signal of 0...10 V, directly reecting
the capacity of the humidier from 0 to 100 %. If humidication is required, the control is transferred through
the output TG3 of the controller.
• Dehumidication of air. There is a control signal of 0...10 V, directly reecting the capacity of the dehu-
midier from 0 to 100 %. If dehumidication is required, the control is transferred through the output TG3
of the controller.
• Dehumidication of air: cooling-heating. Dehumidication is performed using the coolers and heaters
available in the air handling unit. If there are several coolers and heaters, then it shall be pre-determined
which of them will be used in the dehumidication process.
• Humidication and dehumidication of air. For humidication of air the control signal of 0...10 V is used
through the output TG3 of the controller, and the dehumidication of air is performed using the coolers and
heaters available in the unit.
If the maintenance of the room air humidity is provided for, then the hu-
midity function will prevail over the air quality and recirculation functions,
i.e. when humidication or dehumidication is required, these functions
will be blocked.
Humidity control function must be ordered in advance.
Reset settings
Enable
Setpoint 1
55% RH
Mode 1
COMFORT 1
Setpoint 2
30% RH
Mode 2
ECONOMY 2
Humidity control
The OVR function provides for three operation modes selectable depending on the needs of the user:
1. The mode “When on” – the function will respond to the external control contact only when the air handling
unit is on.
2. The mode “When off” – the function will respond to the external control contact only when the air handling
unit is off.
3. The mode “Always” – the function will respond to the external control contact irrespective of the operating
condition of the unit.
The OVR function has the top priority and, therefore, ignores all previ-
ous modes. The function remains active as long as the external control
contact is in the closed position.
2.5.3. Scheduling
Menu for planning of the air handling unit operation
according to the weekly program and the annual cal-
endar.
Scheduling
Operation program
Holidays
Functions Settings
Overview Scheduling
Menu
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