AB Regin Corrigo E81D-3 - Pump Control; Damper Control

Manual Corrigo Ventilation, revision R Chapter 5 Functional description 45
5.5 Pump control
Digital inputs and outputs can be configured for pump control.
All the pumps can use run indication with malfunction alarm or an alarm input connected to a motor
protection or similar.
5.5.1 Heating circuit
The circulation pump for the heating circuit will always run when the outdoor temperature is lower
than a settable value (FS +10°C). At higher outdoor temperatures the pump will run when the
heating output is larger than 0V.
If no outdoor temperature sensor has been configured, the stop temperature can be set to 0°C. Then
the pump will only run on heat demand.
The pump has a settable stop delay.
The pump will be exercised once daily at 3 p.m. for one minute or the set shortest running time,
whichever is the longest.
5.5.2 Exchanger circuit, liquid connected exchangers
The circulation pump for the exchanger circuit will run when the output to the exchanger valve is
larger than 0V.
The pump has a settable, shortest running time.
The pump will be exercised once daily at 3 p.m. for 1 minute, or the set stop delay, whichever is the
longest.
5.5.3 Cooling circuit
The circulation pump for the cooling circuit will run when the output to the cooling valve is larger
than 0V.
The pump has a settable, shortest running time.
The pump will be exercised once daily at 3 p.m. for 1 minute, or the set stop delay, whichever is the
longest.
Corrigo can be configured to block DX cooling if a ”Malfunction P1-Cooling” alarm should occur.
In- and outputs
Heating Exch. Cooling
AI
Outdoor temperature sensor
DO DO DO
Start/stop circulation pump
DI
DI
DI
Run ind/alarm, circ. pump
5.6 Damper control
5.6.1 Close-off dampers
The outdoor air and exhaust air ducts close-off dampers can be controlled by digital outputs or be
hard-wired to the supply air fan relays for normal and reduced speed in such a fashion that the
damper is open when the supply air fan is running. When using pressure controlled fans the digital
activation signal is activated as soon as the fan has start conditions. This signal can be used to open
the close-off damper.