DLQL

Application

• Type DLQL ceiling diffusers are used as supply air or extract air diffusers for comfort zones
• Perfect integration with suspended perforated sheet metal ceilings
• Horizontal one-way to four-way supply air discharge for 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 all types of ceiling systems

Special characteristics

• Horizontal one-way to four-way supply air discharge
• Perforated diffuser face made of galvanised sheet steel
• For all types of ceiling systems
• Horizontal or vertical duct connection

Nominal sizes

Ceiling tile

• 248, 298, 398, 498, 598, 623 (intermediate sizes 249 to 622, in increments of 1 mm)

Air terminal device

• 250, 300, 400, 500, 600

Variants

• DLQL-P: Grid ceilings and continuous plasterboard ceilings
• DLQL-T: T-bar ceilings
• DLQL-*-Z: Supply air
• DLQL-*-A: Extract air

Connection

• H: Horizontal duct connection
• V: Vertical duct connection

Parts and characteristics

• Perforated square diffuser face with special baffle element
• Simple installation of the diffuser face due to central fixing screw with decorative cap (variant -P)

Attachments

• M: Damper blade for volume flow rate balancing with horizontal connection

Accessories

• Lip seal

Useful additions

• Blanking plates

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)

• Perforated plate has a free cross section of approx. 46 %

• Hole diameter is 5 mm, the rows of holes are offset from each other

Materials and surfaces

• Perforated diffuser face made of galvanised sheet steel
• Casing, damper blade and plenum box made of galvanised sheet steel
• Baffle element made of acoustic fleece
• Lip seal made of rubber
• Casing powder-coated RAL 9005, jet black
• Diffuser face dip coated RAL 9010, pure white
• P1: Powder-coated, RAL CLASSIC colour

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