TVZ

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

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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 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

Nominal sizes

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

Useful additions

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)

Materials and surfaces

Variant with acoustic cladding (-D)

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