Pressure under continuous control, airflow by K-factor. Built-in pressure sensor and two digital inputs for the filter pressure switches.
The built-in sensor handles pressure or airflow control. The external pressure switches, wired to the digital inputs, report the individual status of each filter.
Continuous measurement by the built-in sensor. Direct pressure control, or airflow control from pressure and the configured K-factor. The fan is modulated through the compatible drive.
Two external pressure switches, one per filter, wired to digital inputs 1 and 2. Each input identifies its filter; an airflow performance alarm complements it, without locating the filter.
The pressure switches on DI 1 and DI 2 indicate each filter’s saturation, with indication and alarm per channel.
If airflow does not reach the setpoint within the configurable time, the CPD alarms possible filter saturation, without identifying which one.
The digital inputs receive the pressure switch states; continuous pressure measurement comes from the built-in sensor. Pressure switches are external devices and are listed in the commercial scope.
The same STG CPD that pressurises the stairwell serves the other cases where differential pressure is the quantity to control.
As the filter gets dirty, pressure drop rises and airflow tends to fall. The controller detects that variation and automatically adjusts the fan speed to return to the desired airflow.
Keeps the clean room at positive pressure relative to the neighbouring areas. The controller reads the ΔP between rooms and corrects the supply air to return to the desired pressure.
Each VAV box sets the airflow demand of its zone. The controller monitors the zone pressure and modulates the damper to meet every demand without restricting airflow.
Keeps the stairwell pressurised within the pressure range required by the standards. When a door opens, pressure drops and the controller acts to restore it.
Live reading, setpoint, pressure switch status and analogue outputs on a computer or phone. Over Modbus RS-485, the same data goes to the BMS.
Continuous control of the stairwell differential pressure, modulating the pressurisation fan.
See application →
Constant airflow by K-factor in fresh air systems and filter status.
See application →
Pressure, airflow by K-factor and filter status within the air handling unit.
See application →Pressure range, K-factor parameters and per-version limits are informed by engineering in the quote.
Tell us the application, the planned fan and the filters to monitor. Engineering confirms the configuration and returns the proposal.