Swirl Diffusers Type XARTO For a creative ceiling design

Contents · Description Description __________________________________ Innovation __________________________________ Construction · Dimensions ______________________ Installation __________________________________ Nomenclature ________________________________ Quick selection ______________________________ Aerodynamic quick selection Square face style ____________________________ 8 Circular face style____________________________ 9 Face plates __________________________________10 Order details ________________________________11 Spigot Damper blade for flow rate balancing Double lip seal Hanging...

Innovation Type XARTO swirl diffusers meet the most demanding requirements in terms of technology, comfort, and design. Face plates come in classic, modern and flamboyant styles and can be creatively integrated with all types of ceilings. They form in fact an attractive design element for building owners and architects. The combination of swirl unit, newly developed air distribution element and innovative plenum box provides high volume flow rates, a low sound power level and low differential pressure. The air control blades of the swirl unit have three-dimensionally profiled contours to create...

Construction · Dimensions Characteristics • • • • • • Square face plates with circular or square diffuser face style For supply or extract air For installation into suspended ceilings Suitable for all types of ceilings Side entry spigot Damper blade for flow rate balancing, can be set in 15° intervals between 0 and 90° • Plastic parts made of flame retardant plastic, compliant with German building regulations Construction features • Spigot with double lip seal suitable for circular ducts according to EN 1506 or EN 13180. • Three hanging brackets to suspend the unit using wires, threaded rods,...

Installation Installation of the diffuser, connection to the duct, and provision of connecting and fixing materials have to be undertaken by the customer. The diffuser must be installed and connected by trained expert personnel only. All legal regulations for site work must be complied with. The plenum box has three hanging brackets for fixing it to the ceiling slab. Only fixing systems which have been approved by the building inspectorate should be used. The spigot forms the connection between the swirl diffuser and the duct. The double lip seal ensures a tight connection. Additional sealing...

Nomenclature Nomenclature Volume flow rate Minimum volume flow rate Total differential pressure Spacing between two diffusers Spacing between two rows of diffusers Distance from wall Maximum time average air velocity at the wall Maximum time average air velocity between two or four diffusers A-weighted sound pressure level A-weighted sound power level NC rating of sound power level (LWNC ≈ LWA − 6 dB) The noise levels quoted are the dB (A) rating of the sound power level LWA. A typical room correction of 5 dB/oct. results in a sound pressure level of LPA ≈ LWA − 5 dB. All sound power levels are...

Face plates Volume flow rate and total differential pressure for a given sound power level Damper blade open Diffuser type Correction values for different damper blade positions

Aerodynamic quick selection Square face style Example Given data Office Area: Height: Air velocity in the occupied zone Three swirl diffusers, design Q2 Required sound power level per diffuser: Total volume flow rate: Aerodynamic quick selection Minimum distance from wall: x = 1.0 m Distance between two diffusers: a = 1.5 m (diffusers in a single row) The air velocity at the wall remains below 0.35 m/s, and in the occupied zone below 0.2 m/s. Data for quick selection, page 7 For each swirl diffuser: V = 390 l/s ⁄ 3 = 130 l/s (470 m³/h) Maximum volume flow rate for a given distance a or x Nominal...

Aerodynamic quick selection Circular face style Maximum volume flow rate for a given distance a or x Nominal size Between four diffusers (a) at b = 3.0 m l/s Between four diffusers (a) at b = 3.0 m l/s

Face plates

Order details Specification text Type XARTO swirl diffusers for high levels of comfort and special architectural and design requirements. An excellent aerodynamic and acoustic function is ensured by a swirl unit with aerodynamically optimised control blades as well as by a plenum box with a damper blade for volume flow rate balancing and an air distribution element (supply air). Horizontal air discharge with high induction. Special characteristics: • Wide variety of face plates • Newly developed air distribution element to ensure a uniform air flow through the supply air diffuser • Acoustically...