Product data sheet Ceiling diffusers TDF-SilentAIR Circular diffuser faces with circular plenum box Square diffuser face with square plenum box With very low sound power level for comfort zones, with fixed air control blades Twist-shaped, horizontal Air duct Round diffuser face Circular and square ceiling swirl diffusers ■ Nominal sizes 300, 400, 500, 600, 625 ■ Volume flow rate range 10 – 265 l/s or 36 – 954 m³/h ■ Diffuser face made of galvanised sheet steel, powder-coated ■ For supply and extract air ■ For variable and constant volume flows ■ For all types of ceiling systems, and with an extended border also suitable for freely suspended installation ■ High induction results in a rapid reduction of the temperature difference and airflow velocity ■ Ideal for comfort zones Optional equipment and accessories ■ Exposed diffuser face available in RAL Classic colours ■ Horizontal or vertical duct connection ■ Plenum box with cord-operated damper blade and pressure ta

Product data sheet General information Function Technical data Quick sizing Specification text Order code Variants Dimensions Product details Nomenclature General information Application ▪ Ceiling swirl diffusers are used as supply air or extract air diffusers for comfort zones ▪ Attractive design element for building owners and architects with demanding aesthetic requirements ▪ Horizontal swirling supply air discharge for mixed flow ventilation ▪ The efficient swirl creates high induction levels, thereby rapidly reducing the temperature difference and airflow velocity (supply air variant) ▪...

Product data sheet Function Ceiling swirl diffusers in air conditioning systems create a swirl to supply air to rooms. The resulting airflow induces high levels of room air, thereby rapidly reducing the airflow velocity and the temperature difference between supply air and room air. Ceiling swirl diffusers allow for large volume flow rates. The result is a mixed flow ventilation in comfort zones, with good overall room ventilation, creating only very little turbulence in the occupied zone. Type TDF ceiling swirl diffusers have fixed blades. Air discharge is horizontal radial. The supply air to...

Product data sheet Schematic representation, TDF with round connection box and horizontal connection spigot ① Diffuser face ② Center screw attachment with decorative cap ③ Junction box ④ traverse ⑤ Air distribution element (Z: supply air) ⑥ Hanging tab ⑦ Connection piece ⑧ double lip seal (optional) ⑨ Throttle element for volume flow adjustment (opti

Product data sheet Technical data Nominal sizes Minimum volume flow rate, with Δtz = -6 K Maximum volume flow rate, with LWA ≅ 50 dB(A) Supply air to room air temperature difference Quick sizing Quick sizing tables provide a good overview of the volume flow rates and corresponding sound power levels and differential pressures. The minimum volume flow rates apply to a supply air to room air temperature difference of -6 K. The maximum volume flow rates apply to a sound power level of approx. 50 dB (A) with damper blade position 0°. Exact values for all parameters can be determined with our Easy...

Product data sheet TDF-SA-R-Z-H (supply air), variant, sound power level and total differential pressure NS TDF-SA-*-Z-V (supply air), sound power level and total differential pressure NS

Product data sheet Specification text This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design program. Specification text Ceiling swirl diffusers with square or circular diffuser face. Supply air and extract air variants for comfort zones. Diffuser face with fixed air control blades for horizontal swirling supply air discharge creating high induction levels. For installation in suspended ceilings of all kinds. Ready-to-install component which consists of the diffuser face and a plenum box, side entry or top...

Product data sheet Order code TDF-SA – Q – Z – H – M – L / 500 / P1 - RAL … | | | | | | | | 1 2 3 4 5 6 7 8 1 Type TDF-SA Swirl diffuser 2 Construction style Determines the variant of the plenum box R circular Q square 3 System Z supply air A extract air 4 Connection H horizontal V vertical 5 Damper blade for volume flow rate balancing No entry required: without damper unit M with damper unit MN with cords and pressure tap (only with square plenum box) 6 Accessories No entry required: without accessories L With lip seal 7 Nominal size [mm] 300, 400, 500, 600, 625 8 Exposed surface No entry required:...

Product data sheet Variants TDF-SA-Q-Z TDF-SA-Q-*-H Variant ▪ With square plenum box for horizontal duct connection Nominal sizes ▪ 300, 400, 500, 600, 625 Parts and characteristics ▪ Square diffuser face ▪ Square plenum box for horizontal duct connection ▪ Square opening to accommodate the diffuser face ▪ Equalising element that ensures a uniform airflow through the diffuser face (supply air variant) ▪ Simple installation of the diffuser face due to central fixing screw with decorative cap ▪ Damper blade for volume flow rate balancing (optional) ▪ Pressure tap and cord-operated damper blade...

Product data sheet Parts and characteristics ▪ Square diffuser face ▪ Plenum box for vertical duct connection ▪ Circular opening to accommodate the diffuser face ▪ Equalising element that ensures a uniform airflow through the diffuser face (supply air variant) ▪ Simple installation of the diffuser face due to central fixing screw with decorative cap ▪ Damper blade for volume flow rate balancing (optional) ▪ Lip seal (optional) 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) TDF-SA-R-*-H...

Product data sheet 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) TDF-SA-R-*-V Variant ▪ Ceiling swirl diffuser with circular diffuser face ▪ With circular plenum box for vertical duct connection Nominal sizes ▪ 300, 400, 500, 600, 625 Parts and characteristics ▪ Circular diffuser face ▪ Circular plenum box for vertical duct connection ▪ Circular opening to accommodate the diffuser face ▪ Equalising element that ensures a uniform airflow through the diffuser face (supply air variant)...