VSD50

Application

• Type VSD50 slot diffusers are used as supply air or extract air devices in comfort zones
• Air discharge is one-way or alternating horizontal, or alternating angled; turbulent flow (mixed flow ventilation)
• High induction results in a rapid reduction of the temperature difference and airflow velocity (supply air variant)
• For variable and constant volume flows
• For supply air to room air temperature differences from –10 to +10 K
• For room heights up to 4 m (lower edge of suspended ceiling)
• For suspended ceilings; suitable for restricted ceiling voids due to the low overall height of the plenum box
• Suitable for continuous linear arrangement

Special characteristics

• Individually adjustable air control elements to meet individual local requirements
• High induction results in a rapid reduction of the temperature difference and airflow velocity
• Diffuser face has been optimised for maximum volume flow rate at low sound power levels
• Suitable for continuous linear arrangement

Nominal sizes

• L_N: 600, 750, 900, 1050, 1200, 1350, 1500, 1650, 1800, 1950 mm
• Diffuser face available in intermediate sizes from 300 to 2400 mm, in increments of 1 mm

Variants

• VSD50-*: 1 or 2 slots
• VSD50-*-F: Diffuser face only
• VSD50-*-E: Corner section
• VSD50-...: Diffuser face without extended border
• VSD50-.../B00: Diffuser face with extended border
• VSD50-...: Black air control elements
• VSD50-.../WW: White air control elements

Plenum box and diffuser face fixing

• AK: Plenum box and clamp fixing
• DK: Plenum box with lining and clamp fixing
• AS: Plenum box and concealed screw fixing
• DS: Plenum box with lining and concealed screw fixing
• AA: Asymmetric plenum box and clamp fixing

Parts and characteristics

• Diffuser face with individually adjustable air control elements
• Plenum box for horizontal duct connection
• Concealed screw fixing (facilitates installation of the diffuser face) or clamp fixing
• Connecting pins and alignment plates to connect and align slot diffusers for a continuous linear arrangement

Attachments

• M: Damper blade for volume flow rate balancing
• C1, C2: Two end plates
• C5, C6: Two end angles

Accessories

• Lip seal

Useful additions

• EP: Two end plates
• EW: Two end angles
• To be ordered separately for continuous linear runs

Construction features

• Spigot suitable for circular ducts to EN 1506 or EN 13180
• Spigot with groove for lip seal (if accessory lip seal has been ordered)

Materials and surfaces

• Diffuser face made from extruded aluminium sections
• Air control elements made of plastic, UL 94, V-0, flame retardant
• Plenum box made of galvanised sheet steel
• End plate and end angle made of aluminium
• Lip seal made of rubber
• Lining is mineral wool
• Diffuser face with anodised finish, E6-C-0, natural colour
• P1: Powder-coated, RAL CLASSIC colour
• Air control elements similar to RAL 9005, black
• WW: Air control elements similar to RAL 9010, white

Mineral wool

• To EN 13501, fire rating class A1, non-combustible
• RAL quality mark RAL-GZ 388
• Biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EC
• Faced with glass fibre fabric as a protection against abrasion through airflow velocities of up to 20 m/s
• Inert to fungal and bacterial growth

Standards and guidelines

• Sound power level of the air-regenerated noise measured according to EN ISO 5135

Maintenance

• Maintenance-free as construction and materials are not subject to wear
• Inspection and cleaning to VDI 6022