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Manual Corrigo E Ventilation, revision M Chapter 5 Functional description 28
3. Cascaded room temperature control.
Cascade control of room temperature and supply air temperature to achieve a constant, settable
room temperature. The room controller output signal generates the supply air controller’s setpoint
value.
One or two room sensors can be connected. If two sensors are connected the average of their values
will be used. The number of room sensors is detected automatically. The room temperature is kept
at the setpoint value by controlling the output signals for Y1 Heating, Y2 Heat exchanger, Y3
Cooling and Y4 Extra sequence. Two PI loops are used.
The room setpoint value is set using the front panel or alternatively using an external setpoint
device.
4. Cascaded extract air temperature control
Cascade control of extract air temperature and supply air temperature to achieve a constant, settable
room temperature. The extract air controller output signal generates the supply air controller’s
setpoint value.
The extract air temperature is kept at the setpoint value by controlling the output signals for Y1
Heating, Y2 Heat exchanger, Y3 Cooling and Y4 Extra sequence. Two PI loops are used.
The extract air setpoint value is set using the front panel or alternatively using an external setpoint
device.
5. Outdoor temperature dependent switching between supply air temperature
control and room temperature control
When the outdoor temperature is lower than a settable limit (winter), outdoor compensated supply
air temperature control will be active, otherwise (summer) cascaded room temperature control.
6. Outdoor temperature dependent switching between supply air temperature
control and extract air temperature control
When the outdoor temperature is lower than a settable limit, outdoor compensated supply air
temperature control will be active, otherwise cascaded extract air temperature control.