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4.4.3.
Functions
In this menu item, the user can activate and set additional unit functions:
•
Setpoint sliding;
•
Override function.
blank box: function is not activated
grey box: function is activated
4.4.3.1.
Setpoint sliding
The temperature setting point can be shifted from -9 °C to +9 °C from the
temperature set value at user-specified time period. Event start and end
time is set from 0:00 to 24:00 h.
When setpoint sliding is active according to set time period, the setpoint
sliding icon will be displayed in the main window (see chapter 4.2).
4.4.3.2.
Override function
Override function is intended for remote air handling unit control by an
additional external device. After the activation of this function the current
mode of operation will be ignored and the unit will operate at set
intensities. Intensities can be set from 20 to 100 % interval.
The function can be activated in two ways:
•
By the external control device
- Interconnecting (short-circuiting)
the controller’s Override function contacts. Unit will operate in the
selected Override mode and after disconnection it will return to the
previous operation mode. Activation by external device has the highest priority and will
force the unit to start even from stopped mode.
•
By control panel or Modbus protocol
– in this case there is no need for additional
connections to external control devices, the function is activated from the control panel
or Modbus protocol, and the unit will operate in the chosen
Override mode until the internal timer is active (user-defined from 1
to 90 minutes). When this function is active, the intensities of the
supplied air and separately for the extracted air fans can be
adjusted via control panel or any time via Modbus registers.
When Override function is activated, the mode selection
buttons in the main window are inactive. The corresponding
icon appears in notification bar (see chapter 4.2).
