General Information

Application

• Circular VAV terminal units for use in ventilation and air conditioning systems
• For controlling, restricting, or shutting off supply and extract air flows
• 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 effective pressure sensor with 3 mm measuring holes (resistant to dust and pollution)
• 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

• 100, 125, 160, 200, 250, 315, 400

Variants

• TVR: VAV terminal unit
• TVR-D: VAV terminal unit with acoustic cladding
• TVR-FL: VAV terminal unit with flanges on both ends
• TVR-D-FL: VAV terminal unit with acoustic cladding and flanges on both ends
• Units with acoustic cladding and/or a secondary silencer Type CA, CS or CF for demanding acoustic requirements
• Acoustic cladding cannot be retrofitted

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.
• Averaging effective pressure sensor for volume flow rate measurement
• Damper blade
• 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

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

Useful additions

• Secondary silencer Type CA, CS or CF for demanding acoustic requirements
• 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 shaft extension
• TVR-FL: Flanges to EN 12220

Materials and surfaces

Galvanised sheet steel construction

• Casing and damper blade made of galvanised sheet steel
• Damper blade seal made of TPE plastic
• Aluminium sensor tubes
• Plastic plain bearings

Powder-coated construction (P1)

• Casing made of galvanised sheet steel, powder-coated
• Damper blade and shaft made of stainless steel 1.4301
• Sensor tubes made of aluminium, powder-coated

Stainless steel construction (A2)

• Casing, damper blade and shaft made of stainless steel 1.4301
• Sensor tubes made of aluminium, powder-coated

Variant with acoustic cladding (-D)

• Acoustic cladding made of galvanised sheet steel
• Rubber seal 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

• EN 1751, Class 2
• Meets the general requirements of DIN 1946, part 4, with regard to the acceptable closed blade air leakage

NS 125 – 160

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

NS > 160

• 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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