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VAV terminal unit Type TA-Silenzio

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TA-SILENZIO   

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

Rectangular VAV terminal units for the extract air control in buildings with variable air volume systems, demanding acoustic requirements and low airflow velocities

  • Highly effective integral attenuator
  • Optimised for airflow velocities of 0.7 – 7 m/s
  • High control accuracy, even in case of unfavourable upstream conditions
  • Compact construction with rectangular connections on both ends
  • Electronic control components for different applications (Easy, Compact, Universal, and LABCONTROL)
  • Closed blade air leakage to EN 1751, up to class 4
  • Casing leakage 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 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 differential pressure control with suitable control components


Special features
  • Hygiene tested and certified
  • Direct connection to ductwork
  • 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


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 effective 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 even in case of unfavourable upstream conditions


Attachments

  • Easy controller: compact unit with potentiometers
  • 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


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)


Materials and surfaces
  • Casing made of galvanised sheet steel
  • Damper blade and effective 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

  • To EN 13501, fire rating class A1, non-combustible
  • 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
  • Maintenance-free as construction and materials are not subject to wear

Technical information

Function, Technical data, Specification text, Order code, Related Products

  • FUNCTION
  • TECHNICAL DATA
  • SPECIFICATION TEXT
  • ORDER CODES
  • RELATED PRODUCTS
Schematic illustration of the TA-Silenzio TA-Silenzio_gc_01ai.png

① Effective pressure sensor

② Indicator light

③ Control components, e.g. an Easy controller

④ Damper blade with seal


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, with a Compact controller, or with individual components (Universal).

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.

 


Variants

  • VARIANTS

AV terminal unit TVJ

  • VAV terminal unit for variable extract air volume flow control



AV terminal unit, variant TVJ-D

  • VAV terminal unit with acoustic cladding for the control of variable extract air volume flows
  • For rooms where the case-radiated noise of the unit is not sufficiently reduced by a false ceiling
  • The ducts for the room under consideration must have adequate acoustic insulation (to be provided by others) on the fan end
  • Acoustic cladding cannot be retrofitted

Material

Standard construction

Order code detailPartMaterial
-CasingGalvanised sheet steel
-Effective pressure sensorAluminium
-Damper bladeAluminium
-Damper blade sealPolyethylene, PE
-Shaft and linkageGalvanised steel
-Plain bearingsPlastic 
-GearsPlastic, ABS


Order code detailPartMaterial
DAcoustic cladding casingGalvanised sheet steel
DInsulation of structure-borne noisePolyethylene, PE
DLiningMineral wool according to EN 13501, fire rating Class A1, non combustible

Downloads

product information

brochures

certificates

operation manuals

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Thank you for your message!

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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.: +971 4 3417448 | Fax: +971 4 3417449