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Control setpoints

Last modified by Claudia Bless on 2026/08/26 10:21

The dialog for objects of the Controller setpoints type defines all the quality requirements for the zone’s climate.

Field descriptions, etc:

Temperature

Min Setpoint for heating controller. (°C)

Max Setpoint for cooling controller. (°C)

Mech. supply air flow

Min Minimum flow at VAV. Recommended minimum airflow. (l/s/m²). When left blank, balanced ventilation is assumed (value is taken from field below)

Max Maximum flow at VAV. Recommended maximum airflow. (l/s/m²) When left blank, balanced ventilation is assumed (value is taken from field below)

Mech. return air flow

Min Minimum flow at VAV. Recommended minimum airflow. (l/s/m²)

Max Maximum flow at VAV. Recommended maximum airflow. (l/s/m²)

Relative humidity

Min Level of humidity below which minimum VAV flow is kept. Only for VAV with humidity control.

Level of carbondioxide

Min Level of carbondioxide below which minimum VAV flow is kept. Only for VAV with CO2 controlling. (ppm (vol))

Max Level of carbondioxide above which maximum VAV flow is kept. Only for VAV with CO2 controlling. (ppm (vol))

Light at workplace

Min Light intensity at the working surface below which a maximum of electric light is turned on. (Lux)

Max Light intensity at the working surface above which the electric light is fully off. (Lux)

Pressure diff. envelope

Used for VAV with pressure control (normally return air only). Used to extract air in VAV systems when air is supplied in other zones by VAV with other type of control.

Min Pressure difference over zone envelope, when minimum amount of air should be extracted. (Pa)

Max Pressure difference over zone envelope, when maximum amount of air should be extracted. (Pa)

Object: name and description

The dialog for controller setpoints is opened by the Right button menu with the cursor over an object of the Controller setpoints type, (e.g. Office, normal standard) in the Controller setpoints field in the zone form or in the form for IDA-resources.

The setpoints specified in the dialog are used by controllers of the zone climate.