General Information
Application
- Rectangular VAV terminal units for use in ventilation and air conditioning systems
- For controlling, restricting or shutting off airflows in supply 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 characteristics
- 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
- 5, 6, 8, 10, 12 in
Variants
- TZ-Silenzio: supply air unit
- TZ-Silenzio-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
- 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
- Heat exchanger Type WT
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 effective pressure sensor made of aluminium
- Lining is mineral wool
- Plastic plain bearings
- Shaft and linkage: galvanised steel
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 3937 fpm
- 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
- For other applicable standards and guidelines refer to 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
Disclosure of Chemicals
RoHS EU Directive 2011/65/EU (RoHS)This product or individual 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 individual 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.
