This specification text describes one variant of the product and applies to many applications. Texts for variants can be generated with our Easy Product Finder design programme.
Circular VAV terminal units for variable and constant air volume systems, suitable for supply or extract air, available in 7 nominal sizes.
High control accuracy (even with upstream bend R = 1D).
Ready-to-commission unit which consists of the mechanical parts and the electronic control components Each unit contains an averaging effective pressure sensor for volume flow rate measurement, and a control damper blade. Factory mounted control components complete with wiring and tubing.
Effective pressure sensor with 3 mm measuring holes, hence resistant to contamination.
Position of the damper blade indicated externally at shaft extension. The damper blade is factory set to open position, which allows a ventilation airflow even without control; this does not apply to variants with defined safe position NC (normally closed).
Meets the hygiene requirements of EN 16798, Part 3, of VDI 6022, Sheet 1, and of DIN 1946, Part 4.
- Integral effective pressure sensor with 3 mm measuring holes (resistant to dust and pollution)
- Factory set-up or programming and aerodynamic function testing
- Parameters can also later be set on the control component; additional adjustment device may be necessary
- Casing and damper blade made of galvanised sheet steel
- Damper blade seal made of TPE plastic
- Aluminium sensor tubes
- Plastic plain bearings
- Spigot with groove for lip seal, suitable for connecting ducts according to EN 1506 or EN 13180
- Declaration of Hygiene Conformity in accordance with VDI 6022, Part 1 (01/2018), ÖNORM H 6020 (02/2007) and ÖNORM H 6021 (09/2003)
- Meets the hygiene requirements according to EN 16798 Part 3, VDI 6022 Sheet 1, DIN 1946 Part 4
- Acoustic data determined to ÖNORM EN ISO 5135:1999
- Setting the volume flows without adjustment device via a Vmin and Vmax potentiometer
- Electrical connections with screw terminals, no additional terminal boxes required
- All volume flow controllers are factory tested on an aerodynamic test rig and provided with a certification label.
- A test report documenting factory parameterisation, functional testing and adjustment under airflow, based on reference measurements on a regularly validated test rig in accordance with DIN EN ISO 9001, is provided.
- Nominal sizes: 100 to 400 mm
- Volume flow rate range: 34 – 6058 m³/h or 10 – 1682 l/s
- Volume flow rate control range (unit for dynamic effective pressure measurements): approx. 10 to 100 % of the nominal volume flow rate
- Minimum differential pressure: 1 – 117 Pa
- Maximum differential pressure: 1000 Pa
- Closed blade air leakage, class 2, 3 or 4 depending on nominal size.
Specification text attachment
Variable volume flow control with electronic Easy controller to connect an external control signal; actual value signal can be integrated into the central BMS.
- 24 V AC/DC supply voltage
- Signal voltages 0 – 10 V DC
- Possible override controls with external switches using voltfree contacts: CLOSE, OPEN, qvmin and qvmax
- Potentiometers with percentage scales to set the volume flow rates qvmin and qvmax
- The actual value signal relates to the nominal volume flow rate such that commissioning and subsequent adjustment are simplified
- Clearly visible external indicator light for signalling the functions: Set, not set, and power failure
- Electrical connections with screw terminals
- Single or double terminals (depending on control component) for looping the supply voltage, i.e. for the simple connection of voltage transmission to the next controller.
Air-regenerated noise
Case-radiated noise
A life cycle assessment is available for the product type in the form of an environmental product declaration (EPD), which has been checked and published by a programme holder.
Order code for volume flow control (with Easy controller)
| TVR | – | D | / | 200 | / | D2 | / | Easy |
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1 Type
TVR VAV terminal unit
2 Acoustic claddingNo entry: without acoustic cladding
D With acoustic cladding
5 Nominal size [mm]
100, 125, 160, 200, 250, 315, 400
6 Accessories
No entry: without accessories
D2 Double lip seal both ends
7 Attachments (control component)
Easy Volume flow controller, dynamic, analogue interface, setting of q
vmin and q
vmax with potentiometers (provided on site)
Order example: TVR-D/200/D2/Easy| Type | TVR |
| Acoustic cladding | With acoustic cladding |
| Nominal size [mm] | 200 |
| Accessories | Double lip seal both ends |
| Attachments (control components) | Volume flow controller, dynamic, analogue interface, setting of qvmin and qvmax with potentiometers (by others) |
