General Information

Application

• Circular VAV terminal units for use in ventilation and air conditioning systems
• For virtually all control, inductor and shut-off tasks in the supply air or extract air area
• Also for unfavourable upstream conditions at low airflow velocities
• Closed-loop volume flow control using an external power supply
• For variable or constant volume flow systems
• Shut-off via override control by others

Special features

• High effective pressure signal at a small angle of attack
• Factory set-up or programming and aerodynamic function testing
• Volume flow rate can be measured and subsequently adjusted on site; additional adjustment tool may be necessary (depending on the variant of the control component)
• Effective pressure monitoring tubeless via damper blade
• Effective pressure transmission through effective pressure channel in shaft
• Any direction of flow with dynamic transducer
• Any installation orientation, even with static transducers
• Suitable for airflow velocity of 0.5 - 13 m/s
• Compact dimensions for use in confined ceiling areas

Nominal sizes

• 100, 125, 160, 200, 250, 315, 400

Variants

• TVE: VAV terminal unit
• TVE-D: VAV terminal unit with acoustic cladding
• TVE-FL: VAV terminal unit with flanges on both ends
• TVE-D-FL: VAV terminal unit with acoustic cladding and flanges on both ends
• Units with acoustic cladding and/or a circular silencer, types CA, CS or CF, for demanding acoustic requirements

Construction

• Galvanised sheet steel
• P1: Powder-coated, silver grey (RAL 7001)
• A2: Stainless steel
  

Parts and characteristics

• Ready-to-commission unit which consists of mechanical parts and control components.
• Damper blade with integrated measuring unit
• Shaft with effective pressure channel for measured value transmission
• Factory-assembled control components complete with wiring
• 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 unfavourable upstream conditions

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
• Compact controller Modbus: Variant with Modbus RTU interface; plug-and-play solution in conjunction with X-AIRCONTROL room control

Accessories

• G2: Matching flanges for both ends
• D2: Double lip seals on both ends (factory fitted)

Useful additions

• Circular silencers, types CA, CS or CF
• Heat exchanger type WL
• Electric air heater type EL

Construction features

• Circular casing
• Spigot suitable for circular ducts to EN 1506 or EN 13180
• Spigots with groove for seal
• Position of the damper blade indicated externally at position indicator
• TVE-FL: Flanges to EN 12220
• Control component can be replaced

Materials and surfaces

Galvanised sheet steel

• Casing made of galvanised sheet steel
• Damper blade, effective pressure sensor and shaft made of plastic, PA6, UL94, flame retardant (V-0)
• Damper blade seal made of plastic, TPU, antimicrobial
• Plastic plain bearings

Powder-coated construction (P1)

• Casing made of galvanised sheet steel, surface powder coated, silver grey (RAL 7001)
• Damper blade, effective pressure sensor and shaft made of plastic, PA6, UL94, flame retardant (V-0)
• Damper blade seal made of plastic, TPU, antimicrobial
• Plastic plain bearings

Stainless steel construction (A2)

• Casing made of stainless steel 1.4301
• Damper blade, effective pressure sensor and shaft made of plastic, PA6, UL94, flame retardant (V-0)
• Damper blade seal made of plastic, TPU, antimicrobial
• Plastic plain bearings

Acoustic cladding

• Variant with acoustic cladding (-D)
• Acoustic cladding made of galvanised sheet steel
• PE ring for the insulation of structure-borne noise
• Lining is mineral wool

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

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:

NS 100 – 160

• EN 1751, Class 3
• Meets the general requirements of DIN 1946, part 4, with regard to the acceptable closed blade air leakage

NS 200 – 400

• 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

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