TA-Silenzio

Easy controller, Compact controller

TROX UNIVERSAL controller, TROX LABCONTROL controller

Rectangular connections on both ends

For all upstream conditions

Conforms to VDI 6022

TA-SILENZIO

For extract air systems with demanding acoustic requirements and low airflow velocities

Rectangular air terminal units for extract air systems with variable volume flow in buildings requiring high acoustic comfort and low air velocities
■ Highly effective integrated attenuator
■ Optimised for air velocities of 0.7 – 7 m/s
■ High control accuracy under all upstream conditions
■ Compact construction with rectangular connections at both ends
■ 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 according to EN 1751, 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

General Information

Application

Rectangular VAV terminal units for use in ventilation and air conditioning systems
For controlling, restricting or shutting off airflows in extract air systems with low velocities and demanding acoustic requirements
Integral attenuator
Closed-loop volume flow control with auxiliary power
For variable or constant volume flow systems
Shut-off via customer‑provided forced override
Can also be used for differential pressure control with suitable control components

Special characteristics

Hygiene tested and certified
Direct connection to ductwork
Factory setting or programming and aerodynamic function testing
Parameters can also later be set on the control component; additional adjustment device may be necessary

Nominal sizes

125, 160, 200, 250, 315

Variants

TA-Silenzio: Extract air unit
TA-Silenzio-D: Extract 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 differential pressure sensor for volume flow rate measurement
Damper blade
Integral attenuator
Factory assembled control components complete with wiring and tubing
Aerodynamic functional testing on a special test rig prior to shipping of each unit
Set-up data is given on a label or volume flow rate scale affixed to the unit
High control accuracy regardless of upstream conditions

Attachments

Easy controller: compact unit with potentiometers
Compact controller: compact unit consisting of controller, differential pressure transducer and actuator
Universal controller: controller, differential pressure transducer and actuators for special applications
LABCONTROL: Control components for air management systems

Useful additions

Secondary silencer Type TS

Construction features

Rectangular casing
Replaceable seals
Flanges on both ends for the connection to ductwork
Position of the damper blade indicated externally at shaft extension
Thermal and acoustic insulation (lining)

Material and surfaces

Casing made of galvanised sheet steel
Damper blade and differential pressure sensor made of aluminium
Lining is mineral wool
Plastic plain bearings

Variant with acoustic cladding (-D)

Acoustic cladding made of galvanised sheet steel
Lining is mineral wool
Rubber elements for the insulation of structure-borne noise

Mineral wool

According to EN 13501, fire rating class A1, noncombustible RAL quality mark RAL-GZ 388
Non-hazardous to health thanks to being highly biosoluble in accordance with the Ordinance on Hazardous Substances and Note Q of the European Directive (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

Fulfils the hygiene requirements of

EN 16798, Part 3
VDI 6022, Sheet 1
DIN 1946, Part 4
Other standards and guidelines in accordance with the hygiene certificate

Casing leakage

EN 1751, Class C

Closed blade air leakage

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

Maintenance

Low-maintenance 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 TA-Silenzio TA-Silenzio-Function

1 Integrated attenuator
2 Measuring probe
3 Control components, e.g. Easy controller
4 Damper blade with seal

The VAV terminal unit is fitted with a differential pressure sensor for measuring the volume flow rate.
The control components (attachments) include a differential pressure transducer that transforms the differential pressure into an electric signal, a controller, and an actuator; the control functions can be achieved with an Easy controller, with a Compact controller, or with individual components (Universal).
For most applications, the setpoint comes from a room temperature controller.
The controller compares the actual value with the setpoint 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.An integral attenuator reduces the noise that is created by the restriction of the airflow.

Nominal sizes	125 – 315
Volume flow rate range	27 – 1093 l/s or 95 – 3937 m³/h
Volume flow rate control range (unit with dynamic differential pressure measurement)	Approx. 10 – 100 % of the nominal volume flow rate
Minimum differential pressure	Up to 109 Pa (without secondary silencer)
Maximum differential pressure	1000 Pa
Operating temperature	10 to 50 °C

This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme.

Specification text

Rectangular VAV terminal units for variable and constant air volume systems with high acoustic requirements, for extract air, available in 5 nominal sizes. High control accuracy of the set

volume flows under any upstream conditions. Ready-tocommission control unit, consisting of mechanical parts and electronic control components. Each unit contains an averaging differential pressure sensor for volume flow measurement, a damper blade, and an integrated sound attenuator. Control components are factory-mounted, piped and wired. Differential pressure sensor with 3 mm measuring holes, making it resistant to contamination. Fan side and room side both suitable for the connection of air duct profiles. Casing with acoustic and thermal insulation. Position of the damper blade visible from the outside due to the shape of the shaft. The damper blade is factory-set to open position, which allows airflow even without control function; except for variants with defined NC safety position. Meets the hygiene requirements of VDI 6022, DIN 1946, Part 4, as well as EN 13779 and VDI 3803.

Special features

Hygiene tested and certified
Direct connection to ductwork
Factory setting or programming and aerodynamic function testing
Parameters can also later be set on the control component; additional adjustment device may be necessary

Materials and surfaces

Casing made of galvanised sheet steel
Damper blade and differential pressure sensor made from aluminium profiles
Lining made of mineral wool
Plastic plain bearings

Mineral wool:

RAL quality mark RAL-GZ 388
According to EN 13501, fire rating class A1, non-flammable
RAL quality mark RAL-GZ 388
Non-hazardous to health due to high bio-solubility, in accordance with the German Hazardous Substance Ordinance and Note Q of European Regulation (EC) No. 1272/2008
Protected against erosion from airflow velocities up to 20 m/s by glass-fibre fabric facing
Inert to fungal and bacterial growth

Connection type

With flanges on both ends
Suitable on both fan and room sides for mounting air duct profiles

Technical data

Nominal sizes: 125 – 315
Volume flow range: 27 – 872 l/s or 95 – 3142 m³/h
Minimum differential pressure: up to 109 Pa (without secondary silencer)
Maximum differential pressure: 1000 Pa
Leakage airflow with damper blade closed according to EN 1751, class 4. Casing air leakage according to EN 1751, class C

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 determined to ÖNORM EN ISO 5135:1999
No upstream sections required
Maximum control deviation of 5 % at qvmax, without upstream section
Setting the volume flow rates without adjustment device via qvmin- and qvmax potentiometer
Electrical connections with screw terminals, no additional terminal boxes required
The test report of the factory parameterisation, functional test and adjustment under airflow using reference measurement on a regularly validated test rig in accordance with DIN EN ISO 9001 is made available

Specification text attachment

Variable volume flow control with an electronic Easy controller, featuring setpoint input and actual value output for integration into the MCE.

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
Actual value signal relates to the nominal volume flow, therefore simplifying commissioning and subsequent adjustment
Volume flow control range: approx. 10 – 100 % of the nominal volume flow
Externally clearly visible control indicator for signalling the functions: controlled, not controlled, and power failure
Electrical connections with screw terminals
Double terminals for connecting the supply voltage, for easy transmission of the voltage to the subsequent 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)

TA-Silenzio	–	D	/	200	/	Easy
\|		\|		\|		\|
1		2		3		4

1 Type
TA-Silenzio VAV terminal unit, extract air

2 Acoustic cladding
No entry: none
D with acoustic cladding

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

4 Attachments (control component)
Easy Volume flow controller, dynamic, analogue interface, setting of qᵥmin and qᵥmax with potentiometers (provided by the customer)

Order example: TA–Silenzio/125/Easy

Acoustic cladding	none
Nominal size	125
Attachments (control component)	Easy volume flow controller, dynamic, setting qᵥmin and qᵥmax with potentiometers (provided by the customer)

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 TA-Silenzio

TA-Silenzio_PD_2026_03_23_DE_en Product data sheet 720 KB pdf

brochure

Sales flyer Type LVC, TZ-Silenzio, TA-Silenzio, VFL

SF/LVC/TZ-Silenzio/TA-Silenzio/VFL/DE/en Sales flyer 940 KB pdf

certificati

Certificate concerning statistical leakage tests

LC_v2_2024_10_DE_en Certificate 650 KB pdf
Declaration of conformity or declaration of incorporation Types TZ-Silenzio, TA-Silenzio

CE_2013_05_TZ_TA-Silenzio_DE_en Declaration of conformity or declaration of incorporation 160 KB pdf
Declaration of hygiene conformity Type TA-Silenzio

TA-Silenzio_HC_2025_10_en Declaration of hygiene conformity 920 KB pdf
Environmental Product Declaration TA-Silenzio

TA-Silenzio_EPD_2024_07_DE_en Environmental Product Declarations 1,1 MB pdf
Environmental Product Declaration TA-Silenzio-D

TA-Silenzio-D_EPD_2024_07_DE_en Environmental Product Declarations 1,1 MB pdf

manuali d'uso

Assembly and operating instructions TA-Silenzio

TA-Silenzio_IOM_CD10004_V2_2024_01_GB_en 1,7 MB pdf

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TA-SILENZIO

For extract air systems with demanding acoustic requirements and low airflow velocities

General Information

Technical information

Downloads

informazioni di prodotto

Basic information and nomenclature - VAV terminal units

Product data sheet TA-Silenzio

brochure

Sales flyer Type LVC, TZ-Silenzio, TA-Silenzio, VFL

certificati

Certificate concerning statistical leakage tests

Declaration of conformity or declaration of incorporation Types TZ-Silenzio, TA-Silenzio

Declaration of hygiene conformity Type TA-Silenzio

Environmental Product Declaration TA-Silenzio

Environmental Product Declaration TA-Silenzio-D

manuali d'uso

Assembly and operating instructions TA-Silenzio

TROX Services

TECNICAMENTE NECESSARIO

STATISTICHE E ANALISI DEL SITO WEB

CONVENIENZA E PERSONALIZZAZIONE

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