TVZ-introduction-image
TVR-1
Easy controller, Compact controller
TVR-4
TROX UNIVERSAL controller, TROX LABCONTROL controller
Circular-connection-on-the-fan-end
Circular connection on the fan end
Rectangular-connection-on-the-room-end
Rectangular connection on the room end

Tested to VDI 6022 

TVZ-introduction-image
TVR-1
TVR-4
Circular-connection-on-the-fan-end
Rectangular-connection-on-the-room-end

TVZ    

For supply air systems with demanding acoustic requirements

VAV terminal units for the supply air control in buildings with variable air volume systems and demanding acoustic requirements
■ Highly effective integral attenuator
■ Box style construction for the reduction of the airflow velocity
■ Electronic control components for different applications (Easy, Compact, Universal, and LABCONTROL)
■ Closed blade air leakage to EN 1751, up to class 4
■ Casing air leakage to EN 1751, up to class C

Optional equipment and accessories
■ Acoustic cladding for the reduction of case-radiated noise
■ Secondary silencer Type TS for the reduction of air-regenerated noise
■ Hot water heat exchanger of Type WT for reheating the airflow

General information

Application
  • Rectangular VAV terminal units for use in ventilation and air conditioning systems
  • For controlling, restricting or shutting off the supply air flow in systems with high acoustic requirements
  • Integral attenuator
  • Closed-loop volume flow control using an external power supply
  • For variable or constant volume flow systems
  • Shut-off by means of switching (by others)
  • Can also be used for duct or room pressure control with suitable control components

Special characteristics
  • Integral attenuator with at least 26 dB insertion loss at 250 Hz
  • Hygiene tested and certified
  • 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
  • Inspection access according to VDI 6022

Nominal sizes
  • 125, 160, 200, 250, 315, 400

Variants
  • TVZ: Supply air unit
  • TVZ-D: Supply air unit with acoustic cladding
  • Units with acoustic cladding and/or secondary silencer Type TS for very demanding acoustic requirements
  • Acoustic cladding cannot be retrofitted

Parts and characteristics
  • Ready-to-commission unit which consists of mechanical parts and control components.
  • Averaging effective pressure sensor for volume flow rate measurement
  • Damper blade
  • Integral attenuator
  • Inspection access
  • Factory assembled control components complete with wiring and tubing
  • Aerodynamic functional testing on a special test rig before shipping of each unit
  • Set-up data is given on a label or volume flow rate scale affixed to the unit
  • High control accuracy (even with upstream bend R = 1D)

Attachments
  • EASY controller: Compact unit consisting of controller with potentiometers, effective pressure transducer and actuator
  • Compact controller: Compact unit consisting of controller with potentiometers, effective pressure transducer and actuator
  • Universal controller: Controller, effective pressure transducer and actuators for special applications
  • LABCONTROL: Control components for air management systems

Accessories
  • Double lip seal (factory fitted)

Useful additions
  • Secondary silencer Type TS
  • Heat exchanger Type WT

Construction features
  • Rectangular casing
  • Spigot on the fan end suitable for circular ducts to EN 1506 or EN 13180
  • Spigot with groove for double lip seal
  • Connection on the room end suitable for ducts
  • Baffle plate, downstream of the damper blade, for achieving the best possible acoustic and aerodynamic performance
  • Position of the damper blade indicated externally at shaft extension
  • Thermal and acoustic insulation (lining)

Material and surfaces
  • Casing and damper blade made of galvanised sheet steel
  • Damper blade seal made of TPE plastic
  • Lining made of mineral wool
  • Differential pressure sensor made of aluminium
  • Plastic plain bearings
  • Shaft and linkage: galvanised steel
Variant with acoustic cladding (-D)
  • Acoustic cladding made of galvanised sheet steel
  • Lining made of mineral wool
  • Insulation of structure-borne noise made of rubber elements
Mineral wool
  • According to EN 13501, fire rating class A1, non-flammable
  • RAL quality mark RAL-GZ 388
  • Non-hazardous to health due to high biosolubility according to the German Hazardous Substance Ordinance and Note Q of European Regulation (EC) No. 1272/2008
  • Faced with glass fibre fabric as a protection against erosion from airflow velocities of up to 20 m/s
  • Inert to fungal and bacterial growth

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:
Nominal sizes 125 – 200
  • EN 1751, Class C
Nominal sizes 250 – 400
  • EN 1751, Class B
Closed damper blade leakage airflow:
Nominal sizes 125 – 160
  • EN 1751, Class 3
  • Meets the general requirements of DIN 1946, part 4, with regard to the acceptable closed damper blade leakage airflow
Nominal sizes 200 – 400
  • EN 1751, Class 4
  • Meets the increased requirements of DIN 1946, Part 4, with regard to the acceptable closed damper blade leakage airflow

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

Disclosure of Chemicals
RoHS EU Directive 2011/65/EU (RoHS)This product or single variants comply with EU Directive 2011/65/EU (RoHS) on the restriction of the use of certain hazardous substances in electrical and electronic equipment. For more information, please refer to our Environmental Product Declarations.
REACH 1907/2006 (EC Regulation REACH)This product or single variants comply with the provisions of EC Regulation No. 1907/2006, also known as REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals). For more information, please refer to our Environmental Product Declarations.

Technical information

  • FUNCTION
  • TECHNICAL DATA
  • SPECIFICATION TEXT
  • ORDER CODE
Schematic illustration of the TVZ TVZ-Function

1 Differential pressure sensor
2 Double lip seal
3 Inspection access
4 Damper blade
5 Integrated silencer
6 Control components, e.g. Easy controller

The VAV terminal unit is fitted with an effective pressure sensor for measuring the volume flow rate.
The control components (attachments) include an effective pressure transducer that transforms the effective pressure into an electric signal, a controller, and an actuator; the control functions can be achieved with an Easy controller or with a Compact controller or with individual components (Universal or LABCONTROL).
For most applications, the setpoint value comes from a room temperature controller.
The controller compares the actual value with the setpoint value and alters the control signal of the actuator if there is a difference between the two values.
An integral attenuator reduces the noise that is created by the restriction of the airflow.
The airflow velocity at the room end is, due to the larger rectangular cross section, about half the velocity in the circular duct.

Nominal sizes

125 – 400 mm

Volume flow range

14 - 2007 l/s or 50 - 7228 m³/h

Volume flow control range (unit with dynamic differential pressure

measurement)

Approx. 10 - 100 % of the nominal volume flow

Minimum differential pressure

Up to 123 Pa (without secondary silencer)

Maximum differential pressure

1000 Pa

Operating temperature

10 to 50 °C

This specification text describes just one variant of the product and is suitable for many applications. Texts for other variants can be generated with our Easy Product Finder design program.


Specification text
Rectangular VAV terminal units for variable and constant air volume systems, suitable for supply air, available in 6 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, a damper blade, and an integral sound attenuator. Factory-assembled control components complete with wiring and tubing. Effective pressure sensor with 3 mm measuring holes, hence resistant to contamination. Baffle plate is fitted after the damper blade for optimum acoustic and aerodynamic performance. Casing with acoustic and thermal insulation. 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.


Special features
  • Integral attenuator with at least 26 dB insertion loss at 250 Hz
  • Hygiene tested and certified
  • 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
  • Inspection access according to VDI 6022

Materials and surfaces
  • Casing and damper blade made of galvanised sheet steel
  • Damper blade seal made of TPE plastic
  • Lining made of mineral wool
  • Differential pressure sensor made of aluminium
  • Plastic plain bearings
  • Shaft and linkage: galvanised steel
Mineral wool:
  • According to EN 13501, fire rating class A1, non-flammable
  • RAL quality mark RAL-GZ 388
  • Non-hazardous to health due to high biosolubility according to the German Hazardous Substance Ordinance and Note
  • Q of European Regulation (EC) No. 1272/2008
  • Faced with glass fibre fabric as protection against erosion from airflow velocities of up to 20 m/s
  • Inert to fungal and bacterial growth

Connection type
  • Spigot with groove for double lip seal on the fan end, suitable for connecting ducts according to EN 1506 or EN 13180. Room end suitable for the connection of ducts.

Equivalence criteria
  • 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 to ÖNORM EN ISO 5135:1999
  • Setting the volume flow without adjustment device via Vmin and Vmax potentiometers
  • 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

Technical data
  • Nominal sizes: 125 to 400 mm
  • Volume flow rate range: 14 – 1602 l/s or 50 – 5768 m³/h
  • Minimum differential pressure: up to 123 Pa (without secondary silencer)
  • Maximum differential pressure: 1000 Pa
  • Closed blade air leakage to EN 1751, class 4 (nominal sizes 125 and 160, class 3).
  • Casing air leakage to EN 1751, class 4 (nominal size 250, 315, 400, class B)

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.
  • Supply voltage 24 V AC/DC
  • Signal voltages 0 – 10 V DC
  • Possible override controls with external switches using volt-free contacts: CLOSED, OPEN, qᵥmin and qᵥmax
  • Potentiometers with percentage scales to set the volume flow rates qᵥmin and qᵥmax without an adjustment device
  • The actual value signal relates to the nominal volume flow rate such that commissioning and subsequent adjustment are simplified
  • Volume flow rate control range: approx. 10 – 100 % of the nominal volume flow rate
  • Clearly visible external indicator light for signalling the functions: Set, not set, and power failure
  • Electrical connections with screw terminals
  • Double terminals for looping the supply voltage, i.e. for the simple connection of voltage transmission to the next controller

Sizing data
  • qᵥ [m³/h]
  • Δpst [Pa]

Air-regenerated noise

  • LPA [dB(A)]
Case-radiated noise
  • LPA [dB(A)]

Order code for volume flow control (with Easy controller)
TVZ – D / 160 / D1 / Easy
|||||
12345

1 Type

TVZ  VAV terminal unit, supply air 

2 Acoustic cladding
No entry: none
D With acoustic cladding 

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

4 Accessories
No entry: none
D1 Double lip seal 

5 Attachments (control component)
Easy Volume flow controller, dynamic, analogue interface, setting of qvmin and qvmax with potentiometers (provided on site)


Order example: TVZ-D/200/Easy
Acoustic claddingWith
Nominal size200 mm
Attachments (control components)Easy volume flow controller, dynamic, analogue interface,
setting of qvmin  and qvmax  with potentiometers
 

Order code for volume flow control (with VARYCONTROL attachment)
TVZ – D / 160 / D1 / XB4 / V0 / 200 – 900 [m³/h] / NO
|||||||||
1234578910

1 Type
TVZ  VAV terminal unit, supply air 


2 Acoustic cladding
No entry: none
D With acoustic cladding 

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

4 Accessories
No entry: none
D1 Double lip seal 

5 Attachments (control component)
For example
BC0 Compact controller
XB4 Universal controller (VARYCONTROL) 

7 Operating mode
F Constant value mode, one setpoint value (no external switch contact)
V Variable operation (adjustable setpoint value range)

8 Signal voltage range
For the actual and setpoint value signals
0 0 – 10 V DC
2 2 – 10 V DC 

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

10 Damper blade position
Only with spring return actuators
NO power off to open (Normally Open)
NC power off to close (Normally Closed)

 Order example: TVZ-D/160/D1/BC0/V0/180–850 m³/h
Acoustic claddingwith
Nominal size160 mm
AccessoriesDouble lip seal
Attachments (control component)Compact controller, dynamic, analogue interface
Operating modeVariable
Signal voltage range0 – 10 V DC
Operating valuesqᵥmin = 180 m³/h
qᵥmax = 850 m³/h
 

Downloads

product information

  • Basic information and nomenclature - VAV terminal units

    Basic-information-and-nomenclature_VAV-terminal-units_PD_2022_02_25_DE_en Basic information and nomenclature 490 KB pdf

  • Product data sheet BUPN

    BUPN_PD_2024_01_16_DE_en Product data sheet 730 KB pdf

  • Product data sheet BURN

    BURN_PD_2024_01_17_DE_en Product data sheet 730 KB pdf

  • Product data sheet SB0N

    SB0N_PD_2022_12_07_DE_en Product data sheet 260 KB pdf

  • Product data sheet Type TVZ

    TVZ_PD_2026_01_12_DE_en Product data sheet 8 MB pdf

  • Product data sheet control component Easy

    Easy_PD_2025_02_27_DE_en Product Data Sheet 630 KB pdf

  • Product data sheet control component XF4 

    XF4_PD_2021_06_01_DE_en Product data sheet  38 MB pdf

  • Product data sheet control components BC0 

    BC0_PD_2022_09_15_DE_en Product data sheet  840 KB pdf

  • Product data sheet control components BM0

    BM0_PD_2022_09_15_DE_en Product data sheet 570 KB pdf

  • Product data sheet control components BM0-J6

    BM0-J6_PD_2022_02_21_DE_en Product data sheet 23 MB pdf

  • Product data sheet control components BUDNF

    BUDNF_PD_2024_01_16_DE_en Product data sheet 770 KB pdf

  • Product data sheet control components BUPNF

    BUPNF_PD_2024_01_17_DE_en Product data sheet 740 KB pdf

  • Product data sheet control components BURNF

    BURNF_PD_2024_01_17_DE_en Product data sheet 730 KB pdf

  • Product data sheet control components BUSN

    BUSN_PD_2024_01_17_DE_en  Product data sheet 750 KB pdf

  • Product data sheet control components BUSNF

    BUSNF_PD_2024_01_17_DE_en Product data sheet 740 KB pdf

  • Product data sheet control components BUSS

    BUSS_PD_2024_01_17_DE_en Product data sheet  710 KB pdf

  • Product data sheet control components XB4

    XB4_PD_2020_02_14_DE_en Product data sheet 38 MB pdf

  • Product data sheet control components XD0

    XD0_PD_2022_01_24_DE_en Product data sheet 520 KB pdf

  • Product data sheet control components XD4

    XD4_PD_2020_02_14_DE_en Product data sheet 38 MB pdf

  • Product data sheet control components XD4

    XD4_PD_2020_02_14_DE_en Product data sheet 920 KB pdf

  • Product data sheet control components XF0

    XF0_PD_2021_06_01_DE_en Product data sheet 490 KB pdf

  • Product data sheet control components XF4

    XF4_PD_2020_02_27_DE_en Product data sheet 38 MB pdf

  • Product data sheet control components XF4

    XF4_PD_2021_06_01_DE_en Product data sheet 890 KB pdf

  • Product data sheet BUDN

    BUDN_PD_2024_01_16_DE_en Product data sheet 770 KB pdf

  • Product data sheet control component XB0

    XB0_PD_2025_02_28_DE_en Product data sheet  410 KB pdf

brochures

  • CE_2010_12_TVZ_TVA_DE_en.pdf

    70 KB pdf

  • TVZ_HC_2020_06_09_DE_enpdf.pdf

    680 KB pdf

certificates

  • Certificate concerning statistical leakage tests

    LC_v1_2024_10_DE_en Certificate  660 KB pdf

  • Declaration of conformity or declaration of incorporation Types TVZ, TVA

    CE_VVS_DE_en Declaration of conformity or declaration of incorporation 200 KB pdf

  • Declaration of hygiene conformity Type TVZ

    TVZ_HC_2024_05_DE_en Hygiene certificate 1,4 MB pdf

  • Environmental product Declaration TVZ

    TVZ_EPD_2024_12_DE_en Environmental product Declaration 1,1 MB pdf

operation manuals

  • Assembly and operating instructions TVZ

    TVZ_IOM_CD10011_V1_2024_01_GB_en 2 MB pdf

  • Installation and commissioning instructions – Control component Easy

    EASY_IM_A00000073971_V2_2020_03_DE_en 1,5 MB pdf

  • Installation instructions – Replacing GUAC actuators

    IM_2018_01_A00000066402_GUAC-Stellantriebe_tauschen-V1_GB_en 1,4 MB pdf
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