Further Information

Type LVC-LowVelocity

TROX LVC-LowVelocity – the innovative solution

Optimised for low air velocities of 0.6 to 6 m/s
High control accuracy even in case of unfavourable upstream flow conditions
Casing length of only 310 mm
Selection according to the nominal size of the duct
Indicator light provides functional information

The innovative concept of the type LVC-LowVelocity controllers provides accurate measurement and control of low volume flow rates based on the differential pressure principle.

Product Description

zoom

Circular VAV controller
Volume flow control
Electronic Compact controller (EASY principle)
Leakage when the damper blade is closed complies with EN 1751, class 3

Volume flow rate measurement

A new measurement principle makes it possible to measure low volume flow rates. The pressure is measured by means of a nozzle with tappings upstream and downstream of the damper blade. The Compact controller of the LVC-LowVelocity determines the resulting pressure differential (effective pressure) and compares it to the stored characteristic.

The controller works extremely accurate even in case of unfavourable upstream conditions, e.g. if it is fitted directly on or close to the main duct. This is a great advantage where space is limited and hence valuable.

Volume flow rate control

The volume flow rate is controlled in a closed loop, i.e. measurement – comparison – control.

First, measurement takes place. The controller then compares the actual measured value to the setpoint value, which in most applications is received from a room temperature controller. In case of a deviation, the controller sends a signal to the actuator, and the actuator moves the damper blade accordingly.