Volume Flow Controller
12Pages

Type TVR-Easy

Contents Innovation Construction · Dimensions Technical data · Nomenclature Selection of nominal size Acoustic quick selection 3 4 5 6 7 Air-regenerated noise Case-radiated noise Flow rate adjustment Characteristics · Wiring examples Order details 8 9 10 11 12 Nominal size 1 Select nominal size Set flow rate 3 2 Green light: Ready! 2

Innovation TROX TVR-Easy – the innovative solution ½ Easy Selection according to nominal size of the duct system ½ Easy Flow rate adjustment without adjustment tool ½ Easy ½ Easy Functional testing with service button Functional check by indicator light The proven technology of the compact flow rate controller has been optimized. Valuable on site time saved by simple set up. TVR-Easy, developed with consultants and customers! ᕧ ᕨ ᕦ ᕩ ᕥ ᕤ ᕣ ᕢ µ ᕡ ¸ ᕡ TROX Compact-controller ᕧ Wire clamping bracket · Protection cover ᕨ Differential pressure grid ᕣ Potentiometers ᕩ Damper blade ᕤ Indicator...

Construction • Dimensions - Electronic flow rate control - Green indicator light provides functional information: - Functional testing as follows: Press service button for at least 1 second Actuator opens damper blade Actuator closes damper blade Actuator returns damper blade to previous position - High level of control accuracy for the flow rate settings, even if there is an elbow connection R = 1 D - Transparent protection cover to prevent inadvertent resetting and provide general security - Clamping bracket for wiring - Differential pressure range 20 to 1000 Pa - Control damper closed...

Technical Data • Nomenclature TROX Compact- Supply voltage: Power rating: Control signal: Flow rate actual value signal: Transducer range: Running time: Safety class: Protection level: controller technical data Additional safety requirements - Installation and assembly must be performed by qualified personnel. Assembly must be carried out in compliance with local legal regulations. - Connect only to a safety transformer. - The air terminal units of the TROX-Easy type with TROX Compact-controllers may not be used outside of their standard area of application (air conditioning systems). Use...

Selection of Nominal Size The selection of the nominal sizes takes place according to the flow rate range specified by the consultant. The accurate adjustment of the flow rate setpoints is carried out using a flow rate scale, which is attached on each controller.

Acoustic Quick Selection Correction for distribution into the duct system (values incorporated into the quick selection table) Correction for other pressure differentials (averaged values) 1) 4 dB/octave ceiling reduction and 5 dB/octave room attenuation have been allowed for in the calculation of case-radiated noise.

Air-regenerated Noise Lw2 without acoustic cladding Lw3 with acoustic cladding without acoustic cladding Microphone without circular © CS/CF circular silencer © Air distribution to several diffusers © End reflection based on diffuser Acoustic data for differential pressure up to 1000 Pa, see on-line design programme "Air terminal units".

Case-radiated Noise Case-radiated noise calculation procedure Specified sound pressure level in the room 45 dB(A) For further assumptions, see calculation procedure Calculation procedure Quick selection: Specification is not met, so circular silencer required Correction values for case-radiated noise Installation configuration Duct system according to DIN EN 1506 TVRD-Easy (with acoustic cladding) High density acoustic insulation,

Flow Rate Adjustment On each TVR Easy, a flow rate scale is available in order to determine the settings on site (see example nominal size 200 above). Variable flow rate control The required flow rates must be adjusted by the customer. If \/min is set higher than \/max, then \/min is provided as a constant flow rate, even if a control signal is transmitted. If \/min is set on 0 %, then control is between shut-off and \/max. If the control signal falls below 0.1 VDC, the control damper closes (leakage flow only). Constant flow rate control The constant flow rate can be set with the...

Characteristics • Wiring Examples Characteristics of the control signal (Example) Characteristic of actual value signal Flow rate-► Variable flow rate control Room tempera- ture controller The connection of supply voltage and of the remote room temperature controller must be carried out as shown in the circuit diagram opposite. Constant flow rate control As soon as the 24 V supply voltage is applied, the controller Vmin / Vmax changeover The switch S1 enables a changeover between the two When there is parallel connection of multiple TVR-Easy controllers, the switch S1 must be used as...

Order Details Specification text Make: TROX. VAV circular controller Type TVR-Easy for variable air volume flow systems, for supply air or extract air, in 7 nominal sizes. Selection based on nominal size determination. Simple setting . . by the customers of the volume flow with Vmin- and Vmaxadjustment potentiometers with percentage scales. During the installation or commissioning of controller, adjustment is possible without supply voltage. A transparent protection cover prevents inadvertent resetting and provides general security. Control damper blade delivery is in 45° position in order...