General Information
Application
- Circular VAV terminal units for use in ventilation and air conditioning systems
- For almost all tasks when controlling, restricting, or shutting off supply and extract air flows
- Also for unfavourable upstream conditions at low air velocities
- Closed-loop volume flow control using an external power supply
- For variable or constant volume flow systems
- Shut-off by override control (by others)
Special characteristics
- High differential pressure signal with small angle of attack
- Factory set-up or programming and aerodynamic function testing
- Volume flow rate can be measured and subsequently adjusted, additional adjustment tool may be required (depending on the variant of the control component)
- Tubeless differential pressure measurement via damper blade
- Differential pressure transmission through differential pressure duct in shaft
- Any airflow direction if dynamic transducer is used
- Any installation orientation also with static transducer
- Suitable for airflow velocities of 98.4 fpm – 2559.1 fpm
- Compact dimensions for use in confined ceiling areas
Nominal sizes
- 4, 5, 6, 8, 10, 12, 16
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 CA (for Germany and Switzerland), CAH (for EMEA) or CF for demanding acoustic requirements
Construction
- Galvanised sheet steel
- P1: Surface 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 differential pressure duct for measured value transmission
- Factory assembled control components complete with wiring
- Each unit is tested on a special aerodynamic test rig at the factory
- Documentation of the test rig data with a test label or a volume flow scale on the unit
- High control accuracy even in case of unfavourable upstream conditions
Attachments
- EASY controller: compact unit consisting of controller with potentiometers, differential pressure transducer and actuator
- Compact controller: compact unit consisting of controller, differential pressure transducer and actuator
- Compact controller Modbus: variant with Modbus RTU interface and display; Plug-and-play solution in conjunction with X-AIRCONTROL room control
- Compact controller BACnet: variant with BACnet-MS/TP and display; can also be converted to Modbus RTU by the customer
Accessories
- G2: Matching flanges for both ends
- D2: Double lip seals on both ends (factory fitted)
Useful additions
- Circular silencer CA (for Germany and Switzerland), CAH (for EMEA) 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 can be seen from outside via position indicator
- TVE-FL: Flanges to EN 12220
- Simple exchange of the control components possible
Material and surfaces
Galvanised sheet steel construction
- 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 (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 made of mineral wool
Mineral wool
- According to EN 13501, fire rating class A1, non-combustible
- RAL quality mark RAL-GZ 388
- Non-hazardous thanks to high biosolubility according to the German Ordinance on Hazardous Substances and Note Q of the European Regulation (EC) No. 1272/2008
Standards and guidelines
Meets the hygiene requirements of
- EN 16798, Part 3
- VDI 6022, Sheet 1
- DIN 1946, Part 4
- For further standards and guidelines, please refer to the hygiene certificate
Casing air leakage
- EN 1751, Class C
Closed damper blade air leakage:
NS 4 – 6
- EN 1751, Class 3
- Meets the general requirements of DIN 1946, part 4, with regard to the acceptable closed damper blade air leakage
NS 8 – 16
- 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 and tear
