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VAV terminal unit, variant TVE
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Differential pressure measurement via damper blade

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{249}

Compact controller with display

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Junction

For all upstream conditions

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Tested to VDI 6022

Conforms to VDI 6022

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TVE   

COMPACT SOLUTION FOR LOW AIRFLOW VELOCITIES

Circular air terminal units for variable air volume systems with low airflow velocities, suitable even with unfavourable upstream conditions

  • Effective pressure measurement not with a tube, but by means of the damper blade
  • Effective pressure transmission through effective pressure channel in the shaft
  • Terminals with protective cover, no junction box required
  • Any airflow direction if dynamic transducer is used
  • Suitable for airflow velocities of 0.5 – 13 m/s
  • Compact dimensions allow for use in restricted spaces
  • Plug-and-play solution in conjunction with X-AIRCONTROL room control
  • Exact measurement even with low airflow velocities
  • Any installation orientation even with static transducer
  • Closed blade air leakage to EN 1751, at least class 3
  • Casing air leakage to EN 1751, class C
  • Volume flow rate range 1:25

Optional equipment and accessories

  • Acoustic cladding for the reduction of case-radiated noise

  • Secondary silencer CA (for Germany and Switzerland), CAH (for EMEA) or CF for the reduction of air-regenerated noise
  • Hot water heat exchanger WL and electric air heater EL for reheating the airflow

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General information

Application

  • Circular VAV terminal units for use in ventilation and air 

    conditioning systems
  • For almost all tasks when controlling, restricting, or shutting off supply and extract air flows
  • Also for unfavourable upstream conditions at low air velocities
  • Closed-loop volume flow control using an external power supply
  • For variable or constant volume flow systems
  • Shut-off by override control (by others)

Special characteristics

  • High differential pressure signal with small angle of attack

  • Factory set-up or programming and aerodynamic function testing
  • Volume flow rate can be measured and subsequently adjusted, additional adjustment tool may be required (depending on the variant of the control component)
  • Tubeless differential pressure measurement via damper blade
  • Differential pressure transmission through differential pressure duct in shaft
  • Any airflow direction if dynamic transducer is used
  • Any installation orientation also with static transducer
  • Suitable for airflow velocities of 0.5 – 13 m/s
  • Compact dimensions for use in confined ceiling areas

Nominal sizes

  • 100, 125, 160, 200, 250, 315, 400

Variants

  • TVE: VAV terminal unit

  • TVE-D: VAV terminal unit with acoustic cladding
  • TVE-FL: VAV terminal unit with flanges on both ends
  • TVE-D-FL: VAV terminal unit with acoustic cladding and flanges on both ends
  • Units with acoustic cladding and/or a circular silencer CA (for Germany and Switzerland), CAH (for EMEA) or CF for demanding acoustic requirements

Construction

  • Galvanised sheet steel

  • P1: Surface powder-coated, silver grey (RAL 7001)
  • A2: Stainless steel

Parts and characteristics

  • Ready-to-commission unit which consists of mechanical 

    parts and control components.
  • Damper blade with integrated measuring unit
  • Shaft with differential pressure duct for measured value transmission
  • Factory assembled control components complete with wiring
  • Each unit is tested on a special aerodynamic test rig at the factory
  • Documentation of the test rig data with a test label or a volume flow scale on the unit
  • High control accuracy even in case of unfavourable upstream conditions

Attachments

  • EASY controller: compact unit consisting of controller with 

    potentiometers, differential pressure transducer and actuator
  • Compact controller: compact unit consisting of controller, differential pressure transducer and actuator
  • Compact controller Modbus: variant with Modbus RTU interface and display; Plug-and-play solution in conjunction with X-AIRCONTROL room control
  • Compact controller BACnet: variant with BACnet-MS/TP and display; can also be converted to Modbus RTU by the customer

Accessories

  • G2: Matching flanges for both ends

  • D2: Double lip seals on both ends (factory fitted)

Useful additions

  • Circular silencer CA (for Germany and Switzerland), CAH 

    (for EMEA) or CF
  • Heat exchanger Type WL
  • Electric air heater Type EL

Construction features

  • Circular casing

  • Spigot suitable for circular ducts to EN 1506 or EN 13180
  • Spigots with groove for seal
  • Position of the damper blade can be seen from outside via position indicator
  • TVE-FL: Flanges to EN 12220
  • Simple exchange of the control components possible

Material and surfaces

Galvanised sheet steel construction

  • Casing made of galvanised sheet steel

  • Damper blade, effective pressure sensor and shaft made of plastic, PA6, UL94, flame retardant (V-0)
  • Damper blade seal made of plastic, TPU, antimicrobial
  • Plastic plain bearings

Powder-coated (P1)

  • Casing made of galvanised sheet steel, surface powder 

    coated, silver grey (RAL 7001)
  • Damper blade, effective pressure sensor and shaft made of plastic, PA6, UL94, flame retardant (V-0)
  • Damper blade seal made of plastic, TPU, antimicrobial
  • Plastic plain bearings

Stainless steel construction (A2)

  • Casing made of stainless steel 1.4301
  • Damper blade, effective pressure sensor and shaft made of plastic, PA6, UL94, flame retardant (V-0)
  • Damper blade seal made of plastic, TPU, antimicrobial
  • Plastic plain bearings


Acoustic cladding

  • Variant with acoustic cladding (-D)
  • Acoustic cladding made of galvanised sheet steel
  • PE ring for the insulation of structure-borne noise
  • Lining made of mineral wool

Mineral wool

  • According to EN 13501, fire rating class A1, non-combustible
  • RAL quality mark RAL-GZ 388
  • Non-hazardous thanks to high biosolubility according to the German Ordinance on Hazardous Substances and Note Q of the European Regulation (EC) No. 1272/2008


Standards and guidelines

Meets the hygiene requirements of

  • EN 16798, Part 3
  • VDI 6022, Sheet 1
  • DIN 1946, Part 4
  • For further standards and guidelines, please refer to the hygiene certificate

Casing air leakage

  • EN 1751, Class C

Closed damper blade air leakage:

NS 100 – 160

  • EN 1751, Class 3
  • Meets the general requirements of DIN 1946, part 4, with regard to the acceptable closed damper blade air leakage

NS 200 – 400

  • EN 1751, Class 4
  • Meets the increased requirements of DIN 1946, part 4, with regard to the acceptable closed blade air leakage

Maintenance

  • Maintenance-free, as construction and materials are not subject to wear and tear

Technical information

  • FUNCTION
  • TECHNICAL DATA
  • SPECIFICATION TEXT
  • ORDER CODE
TVE_gc_02svg.png

1 Double lip seal
2 Casing
3 Damper blade including differential pressure sensor
4 Shaft with effective pressure channel
5 Electronic volume flow controller


Functional description

The control damper blade works as an actuator and as an effective pressure sensor. Through the effective pressure channel in the shaft of the detected effective pressure reaches the transducer (static or dynamic), is converted into an electrical signal and compared with the setpoint value.

In the case of a control deviation, the integrated actuator changes the position of the control damper blade. As a result, the volume flow rate is maintained at a constant level in close tolerances over the entire differential pressure range.


Nominal sizes100 – 400 mm
Volume flow rate range4 - 1388 l/s or 14 - 5000 m³/h

Volume flow rate control range (unit with dynamic effective pressure measurement)

Approx. 4 – 100 % of the nominal volume flow rate
Minimum differential pressure Up to 75 Pa (without circular silencer)
Maximum differential pressureControl component with dynamic transducer: 900 Pa, control component with static transducer: 600 Pa
Operating temperature10 to 50 °C


This specification text describes just 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 of set volume flow rates, even in unfavourable upstream conditions. Control range at least 1:25. Differential pressure measurement and control via damper blade. Tubeless differential pressure transmission through differential pressure duct in shaft Closed blade air leakage to EN 1751: at least class 3, from NS 200: class 4. Casing air leakage to EN 1751, class C. Ready-to-commission unit which consists of the mechanical parts and the factory mounted electronic control component. Position of the damper blade indicated externally at the control component. The damper blade is factory set to open position, which allows a ventilation airflow even without control. Meets the hygiene requirements of EN 16798, Part 3, of VDI 6022, Sheet 1, and of DIN 1946, Part 4.

Special features

  • High differential pressure signal with small angle of attack

  • Factory set-up or programming and aerodynamic function testing
  • Volume flow rate can be measured and subsequently adjusted, additional adjustment tool may be required (depending on the variant of the control component)
  • Tubeless differential pressure measurement via damper blade
  • Differential pressure transmission through differential pressure duct in shaft
  • Any airflow direction if dynamic transducer is used
  • Any installation orientation also with static transducer
  • Suitable for airflow velocities of 0.5 – 13 m/s
  • Compact dimensions for use in confined ceiling areas

Materials and surfaces

  • Casing made of galvanised sheet steel

  • Damper blade and shaft made of plastic, PA6, UL94-V0
  • Damper blade seal made of plastic, TPU, antimicrobial
  • Plastic plain bearings

Equivalence criteria

  • Declaration of hygiene conformity in accordance with VDI 

    6022, part 1 (01/2018), ÖNORM H 6020 (03/2015) and ÖNORM H 6021 (08/2016)
  • Meets the hygiene requirements according to EN 16798 Part 3, VDI 6022 Sheet 1, DIN 1946 Part 4
  • Acoustic data determined according to ÖNORM EN ISO 5135
  • Independent of airflow direction - airflow in both directions
  • Suitable for airflow velocities of 0.5 – 13 m/s
  • No upstream section required (even behind T-piece)
  • Maximum control deviation of 5 % at qvmax, without 

    upstream section
  • Setting the volume flow without adjustment device via Vmin- and Vmax-Potentiometer
  • Electrical connections with screw terminals, no additional terminal box required
  • The test report of the factory parameterisation, functional test and adjustment under air by reference measurement on a regularly validated test rig in accordance with DIN EN ISO 9001 is made available

Connection type

  • Spigot with groove for lip seal, suitable for connecting ducts according to EN 1506 or EN 13180

Technical data

  • Minimum differential pressure: up to 75 Pa (without circular silencer)

Maximum differential pressure

  • Control component with dynamic transducer: 900 Pa
  • Control component with static transducer: 600 Pa

Specification text attachment

Variable volume flow control with electronic Easy controller forapplying a reference value and capturing an actual value to be integrated with the MCE/BACS.


  • Supply voltage 24 V AC/DC

  • Signal voltages 0 – 10 V DC
  • Possible override control with external switches using potential-free contacts: CLOSE, OPEN, qvmin and qvmax Potentiometers with percentage scales to set the volume flow qvmin and qvmax
  • The actual value signal relates to the nominal volume flow so that commissioning and subsequent adjustment are simplified
  • Volume flow rate control range: approx. 4 – 100 % of the nominal volume flow
  • Visible indicator light for signalling the various operating conditions
  • Electrical connections with screw terminals. Double screw terminals for looping the supply voltage, i.e. for simple connection of voltage transmission to the next controller.


Life cycle assessment

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)


TVED/100/D2/Easy
|||||
12567
1 Type
TVE
VAV terminal unit

2 Acoustic cladding
No 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 qᵥmin and qᵥmax with potentiometers (provided by the client)


Order example: TVE-D/200/D2/Easy

TypeTVE
Acoustic claddingWith acoustic cladding
Nominal size [mm]200
AccessoriesDouble lip seal both ends
Attachments (control components)Volume flow controller, dynamic, analogue interface, setting of qmin and qᵥmax with potentiometers (by others)


Order code for volume flow control (with VARYCONTROL attachment)

TVEDP1FL/100/G2/XB0/V0/200 – 900 [m³/h]
||||||| |||
1234567 8910

1 Type
TVE
VAV air terminal unit

2 Acoustic cladding
No entry: without acoustic cladding
D with acoustic cladding

3 Material
No entry: galvanised sheet steel
P1 Surface powder-coated, RAL 7001 (silver grey)
A2 Stainless steel construction

4 Air duct connection
No entry: push-fit end, suitable for air ducts according to EN 1506; with groove for optional seal
FL Flanges on both ends

5 Nominal size [mm]
100, 125, 160, 200, 250, 315, 400

6 Accessories

No entry: without accessories
D2 Double lip seal both ends (with groove: only for push-fit end)
G2 Matching flange for every flange (only with FL)

7 Attachment (control component)
XB0
Dynamic volume flow controller, analogue interface
XM0 Dynamic volume flow controller with display, interface Modbus RTU or analogue
XM0-J6 Dynamic volume flow controller with display, Modbus RTU interface, RJ12 socket (for X-AIRCONTROL)
XS0 Static volume flow controller with display, Modbus RTU or analogue interface
XS0-J6 Static volume flow controller with display, Modbus RTU interface, RJ12 socket (for X-AIRCONTROL)
XDMB0 Dynamic volume flow controller with display, Modbus RTU or BACnet MS/TP or analogue interface
XSMB0 Static volume flow controller with display, Modbus RTU or BACnet MS/TP or analogue interface

8 Operating mode
For attachments XB0, XM0, XS0
F Constant value mode, one setpoint value (no external switch contact)
V Variable operation (default setpoint value from analogue signal)

For attachments XM0, XM0-J6, XS0, XS0-J6
M Modbus RTU interface, variable operation (default setpoint value in Modbus register)

For attachments XDMB0, XSMB0
B BACnet MS/TP interface, variable operation (setpoint specification via BACnetObject)

9 Signal voltage range
Only with operating mode F or V
0 0 – 10 V DC
2 2 – 10 V DC

10 Operating values for factory setting
Volume flow rate [m³/h or l/s]
qᵥconst (with operating mode F)
qᵥmin – qᵥmax (for operating mode V, M, B)


Order example: TVE-D-P1-FL/100/G2/XB0/V0/200-900 [m³/h]

TypeTVE
Acoustic claddingwith acoustic cladding
MaterialAir duct powder-coated RAL 7001, silver grey
Air duct connectionFlanges on both ends
Nominal size [mm]100
AccessoriesMatching flange for every flange (only with FL)
Attachments (control component)Volume flow controller, dynamic, analogue interface
Operating modevariable operation
Signal voltage range0 – 10 V DC
Operating values for factory setting200 – 900 [m³/h]

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Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +32(0)2 522 07 80 | E-mail: info@trox.be