The function unit comprises the duct module (TVRC) with the optional cabin module (finished solution).
Heating and flow rate set points are forwarded from the cabin module or the external management system to the duct module.

The TVRC unit controls the required room temperature with the aid of the flow rate and the duct temperature.
A triple safety circuit prevents the unit from overheating.
Cabin Module Operation (optional)

The cabin module is operated by the room user and is fitted to the wall. Apart from the controls, it also contains the room temperature controller with the room sensor.

A service socket (LON interface, Siemens version) enables the experienced service personnel to connect a computer for setting parameters.

Characteristics

• Integrated averaging differential pressure sensor with 3 mm measuring holes and so insensitive to dirt
• Factory set up or programming of flow rate. This includes aerodynamic function test of each box using a dedicated test rig. Data covering set up is given on a test label attached to each controller
• EMV test in accordance with the 89/336/EEC guideline
• Conformity test, high-voltage tests, isolation measurements and others