TVZ

Easy controller, Compact controller

TROX UNIVERSAL controller, TROX LABCONTROL controller

Circular connection on the fan end

Rectangular connection on the room end

Tested to VDI 6022

For supply air systems with demanding acoustic requirements

Air terminal units for supply air control in buildings with variable air volume systems and high acoustic requirements
■ Highly effective integrated attenuator
■ Box style construction for the reduction of the airflow velocity
■ Electronic control components for different applications (Easy, Compact, Universal, and LABCONTROL)
■ Leakage airflow at closed damper blade according 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 casing-radiated noise
■ Secondary silencer Type TS for the reduction of air-regenerated noise
■ Hot water heat exchanger Type WT for reheating

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

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 size	125 – 400 mm
Volume flow range	14 – 2007 l/s or 50 – 7228 m³/h
Volume flow control range (controller with dynamic differential pressure measurements)	approx. 10 – 100 % of the nominal volume flow
Minimum pressure differential	Up to 123 Pa (without secondary silencer)
maximum permissible pressure differential	1000 Pa
Operating temperature	10 – 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 voltfree 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
\|		\|		\|		\|		\|
1		2		3		4		5

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 q_vmin and q_vmax with potentiometers (provided on site)

Order example: TVZ-D/200/Easy

Acoustic cladding	With
Nominal size	200 mm
Attachments (control components)	Easy volume flow controller, dynamic, analogue interface, setting of q_vmin and q_vmax with potentiometers

Downloads

informazioni di prodotto

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 TVZ

TVZ_PD_2026_08_04_DE_en Product data sheet 690 KB pdf

brochure

CE_2010_12_TVZ_TVA_DE_en.pdf

70 KB pdf
TVZ_HC_2020_06_09_DE_enpdf.pdf

680 KB pdf

certificati

Certificate concerning statistical leakage tests

LC_v2_2024_10_DE_en Certificate 650 KB pdf
Declaration of hygiene conformity Type TVZ

TVZ_HC_2025_10_en Declaration of hygiene conformity 930 KB pdf
Declaration of incorporation Type TVZ

TVZ_CE_DoI_2026_07_CH_en Declaration of incorporation 780 KB pdf
Environmental product Declaration TVZ

TVZ_EPD_2024_12_DE_en Environmental product Declaration 1,1 MB pdf

manuali d'uso

Assembly and operating instructions TVZ

TVZ_IOM_CD10011_V1_2024_01_GB_en 2 MB pdf

TROX Services

Productsearch A-Z Find out quickly and simply.

TROX Easy Product Finder Fast. Affidabile. Innovativo.

Tour de Competence Competence - exciting staged.

By clicking the button, you allow us to provide you with an excellent website experience and easy shopping processes. These cookies include ones that are necessary for the operation of the site and for the control of our services and applications, as well as ones that are used solely for statistical purposes, for convenience settings or to display personalized content. You can decide which categories you want to allow and you can adjust the data utilisation settings based on your individual requirements. Please note that, depending on the settings that you have selected, all functionalities of the page might not be available. You can change your selection at any time.

TECNICAMENTE NECESSARIO

Questi cookie sono necessari per il corretto funzionamento del nostro sito web e non possono essere disabilitati. Di norma, questi cookie vengono impostati solo in risposta ad azioni intraprese da voi, come l'impostazione delle preferenze sulla privacy o il riempimento del carrello della spesa. Inoltre, sono integrate funzionalità rilevanti per la sicurezza o il supporto tramite una webchat dedicata, inclusi tutti i cookie di sessione di TROX impostati dopo il login come cliente. È possibile impostare il proprio browser per bloccare questi cookies o per notificare la loro presenza. Come risultato, tuttavia, alcune aree del sito potrebbero non funzionare come previsto.

STATISTICHE E ANALISI DEL SITO WEB

Questi cookies permettono di raccogliere dati per statistiche e analisi in modo che TROX possa misurare le prestazioni dei siti visitati, identificare problemi tecnici e trovare punti di partenza per l'ottimizzazione. Possono essere impostati da noi o da terzi i cui servizi utilizziamo sui nostri siti. Gli utenti aiutano anche ad identificare, per esempio quali pagine vengono utilizzate più frequentemente o solo raramente o come le persone navigano tra le pagine web. Tutte le informazioni utilizzate da terzi sono aggregate e rese anonime.

TVZ

For supply air systems with demanding acoustic requirements

General information

Technical information

Downloads

informazioni di prodotto

Basic information and nomenclature - VAV terminal units

Product data sheet TVZ

brochure

CE_2010_12_TVZ_TVA_DE_en.pdf

TVZ_HC_2020_06_09_DE_enpdf.pdf

certificati

Certificate concerning statistical leakage tests

Declaration of hygiene conformity Type TVZ

Declaration of incorporation Type TVZ

Environmental product Declaration TVZ

manuali d'uso

Assembly and operating instructions TVZ

TROX Services

TECNICAMENTE NECESSARIO

STATISTICHE E ANALISI DEL SITO WEB

CONVENIENZA E PERSONALIZZAZIONE

PER LA MIGLIORE ESPERIENZA TROX