High capacity multi-swirl diffuser (2, 3 or 4 x DN250) with high induction, fixed horizontal discharge pattern from swirl vanes flush with diffuser face, suitable for nominally 300 mm wide ceiling grids. Unique helical twist vane design provides high airflow capacity, and allows low-temperature VAV (Tsupply ≥ 5 °C) with turndown to 25%. Suitable for installation in a closed ceiling.
Mixed flow discharge: High induction swirl discharge intensely mixes supply air with room air. Strong supply air dilution with rapid discharge velocity decay produces draught-free, high momentum supply air motion with uniform temperature distribution over short or long throws. Ideal for enhanced thermal comfort (ADPI ≥ 90%).
Return air: Also suitable for use as a return air inlet.
Ceiling location: Air supply from above the space, integrated flush with a closed ceiling or freely suspended.
Low temperature supply: May be used for low temperature (cold air) supply systems (Tsupply ≥ 5°C), where ∆Tsupply-room ≥ -16 K.
VAV Dependent throw: Throw dependent upon airflow rate. Minimum airflow dependent upon ∆Tsupply-room (eg turndown to 25-28%, neck reducer dependent, and down to ≈1 L/s/m2 @ ∆Tsupply-room ≈ -16 K).
Fixed Direction: 360° radial pattern (4-way blow), horizontal discharge pattern.
Rectangular face: Lay-in tile, suitable for standard ceiling grids 300 mm wide, 600 mm, 900 mm or 1200 mm long.
Radial face patter: 20 radially off-set swirl vanes per swirl outlet provide highly inductive swirl discharge. Vanes with helical twist extend VAV operating range. Cambered leading edges reduce pressure drop and noise.
Metal Face: Powder coated metal finish.
Smudge minimiser: CleanScreen™ air supply through optional perforated hub washes diffuser face with clean supply air, minimising diffuser face soiling due to air borne contaminants from the room. Patents pending.
Sweat inhibitor: CleanScreen™ (patents pending) air supply through optional perforated hub washes diffuser face with dehumidified supply air, eliminating diffuser face condensation due to humid room air.
Blanking segments: Provide 2-way or 3-way discharge patterns. May be combined with neck reducers.
Plenum: Side-entry foam connection boxes with threaded rod or magnetic edge strip fastenings.