Cooler; Mixing Damper - Regin OPTIGO ARDO Manual

3.3.3

Cooler

Control
If a cooler is configured, it's controlled by the corresponding sequence analog output.
Table 3-8 Settings and configuration for water cooling
Feature
Analog output
PID settings
3.3.4

Mixing damper

Control
The analog output signal controls two dampers for gradual mixing of outdoor air and recirculated air. In this
mode the output signal decreases with decreasing heat demand.
CO
2
If demand controlled ventilation is activated in combination with mixing dampers, CO
for the sequence, and the CO
The function is controlled by a PI-controller.
Table 3-9 Settings and configuration for CO
Feature
CO setpoint
2
PI settings
Minimum limit
An outdoor air minimum limit for the amount of fresh air can be set. The limit value is settable between 0
and 100 %. For example: to reach a minimum of 20 % fresh air you need to set the max limit of the sequence
to 80 %. (Configuration ► Function config.► Sequence x ► Sequence output min limit (%) and Sequence
output max limit (%)
Optigo Ardo manual, Rev. A
Menu path in display
Configuration ► Analog outputs
► Cooler
Ventilation ► PID controllers ►
Cooler
-value rises above the setpoint value, the dampers will let in more outdoor air.
2
and mixing dampers
2
Menu path in display
Ventilation ► Demand control
► CO2
Ventilation ► PID controllers ►
CO2
Information for the specialist
Variable
Range output:
✓ 0...10 V
✓ 2...10 V
✓ 10...2 V
✓ 10...0 V
Variable
✓ Setpoint mixing damper
(ppm)
✓ Start limit fan start / stop
(ppm)
✓ Stop hysteresis fan start /
stop (ppm)
✓ Demand control
✓ Min time for CO2 control
(min)
Description
-control is activated
2
Note
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