VAV terminal units for the supply air control in buildings with variable air volume systems and demanding acoustic requirements
Optional equipment and accessories
Application
Special features
Variants
Parts and characteristics
Attachments
Accessories
Useful additions
Construction features
Materials and surfaces
TVZ-D
Mineral wool
Functional description
The VAV terminal unit is fitted with a differential pressure sensor for measuring the volume flow rate.
The control components (attachments) include a differential pressure transducer that transforms the differential pressure (effective pressure) into an electric signal, a controller, and an actuator; the control functions can be achieved with an Easy controller, with a Compact controller, or with individual components (Universal or LABCONTROL).
For most applications, the setpoint value comes from a room temperature controller.
The controller compares the actual value with the setpoint value and alters the control signal of the actuator if there is a difference between the two values.
An integral attenuator reduces the noise that is created by the restriction of the airflow.
The airflow velocity at the room end is, due to the larger rectangular cross section, about half the velocity in the circular duct.
Rectangular VAV terminal units for variable and constant air volume systems, suitable for supply air, available in 6 nominal sizes.
High control accuracy (even with upstream bend R = 1D).
Ready-to-commission unit which consists of the mechanical parts and the electronic control components. Each unit contains an averaging differential pressure sensor for volume flow rate measurement, a damper blade, and an integral attenuator. Factory-assembled control components complete with wiring and tubing.
Differential pressure sensor with 3 mm measuring holes (resistant to dust and pollution)
On the fan end, spigot with groove for lip seal, suitable for connecting ducts according to EN 1506 or EN 13180.
Room end suitable for the connection of air duct profiles.
Baffle plate is fitted after the damper blade for optimum acoustic and aerodynamic performance.
Casing with acoustic and thermal insulation.
Position of the damper blade indicated externally at shaft extension.
Closed blade air leakage to EN 1751, class 4 (nominal sizes 125 and 160, class 3).
Casing air leakage to EN 1751, class B.
Complies with VDI 2083, clean room class 3, and US standard 209E, class 100. Hygiene complies with VDI 6022, DIN 1946, part 4, as well as EN 13779 and VDI 3803.
Special features
Materials and surfaces
TVZ-D
Mineral wool
Technical data
Attachments
Variable volume flow control with electronic Easy controller to connect an external control signal; actual value signal can be integrated into the central BMS.
Electrical connections with screw terminals. Double terminals for looping the supply voltage, i.e. for the simple connection of voltage transmission to the next controller.
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Please specify your message and type of request.
Tel.: +54 (11) 4233 5676
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Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +54 (11) 4233 5676