TVZ

• 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

• 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

• 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

• 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)

• 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)

• Secondary silencer Type TS
• Heat exchanger Type WT

• 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)

• 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

• Acoustic cladding made of galvanised sheet steel
• Lining made of mineral wool
• Insulation of structure-borne noise made of rubber elements

• 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

• EN 16798, Part 3
• VDI 6022, Sheet 1
• DIN 1946, Part 4
• For further standards and guidelines, please refer to the hygiene certificate

• EN 1751, Class C

• EN 1751, Class B

• 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

• 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.