Displacement diffusers

Displacement Diffuser Units LADES Long-Throw Displacement Diffuser Unit 29-30 Selection Examples, Results and Correction Factors 31-32

S-90 Series S-90 Series Displacement Diffusers S-90 Series Overview The S-90 diffusers are displacement units for floor installation. The unit includes upper and lower covers and a perforated air distribution face plate. Connections can be made through the upper or lower cover. The units are of galvanised steel sheet construction with aluminium sections and include an air equalising plate (painted in black) inside, as well as static pressure measurement to obtain the supply flow rate. The standard finish is RAL 9010 white paint, although any RAL colour is available upon request. Applications The...

S-90-C Model - Round Dimensions The S-90-C diffuser is a cylindrical displacement unit that supplies air at a low velocity to the habitable area. Optional accessories include a plinth and trim. UPPER COVER BAND FASTENER FOR DECORATIVE SECTION LOWER COVER REMOVABLE TRIM SECTION PRESSURE SENSOR DECORATIVE PLINTH DIMENSIONS Size

S-90-C Model - Round Technical data Quick selection table S-90-C QUICK SELECTION TABLE The air flow, pressure drop and horizontal throw of the air jet are listed below for a velocity of 0.20 m/s in the occupied area, based on a specific sound level. S-90-C These charts allow the sound level and pressure drop data to be obtained from the supply flow rate. S-90-C Symbols: Q (m3/h) Air flow per displacement unit LwA(dBA) Sound power level

S-90-C Model - Round Throw data The selection charts shown allow the horizontal throw of the air jet to be obtained from the supply flow rate, when the velocity in the occupied area is 0.20 m/s. Selection charts. Air flow per displacement unit X0.20(m) Horizontal throw of the air jet, when the velocity in the occupied area is 0.20 m/s for a temperature difference of T = -3 ºC

S-90-SC Model - Semicircular Dimensions The S-90-SC diffuser is a semicircular displacement unit that supplies the air at low velocity to the habitable area. Optional accessories include a plinth and trim.

S-90-SC Model - Semicircular Technical data Quick selection table The air flow, pressure drop and horizontal throw of the air jet are listed below for a velocity of 0.20 m/s in the occupied area, based on a specific sound level. Pressure drop and sound level selection charts S-90-SC 25 These charts allow the sound level and pressure drop data to be obtained from the supply flow rate. Symbols: Q (m3/h) Air flow per displacement unit ΔP (Pa) Pressure drop LwA(dBA) Sound power level

S-90-SC Model - Semicircular Selection charts. Throw data S-90-SC Ø 160 The selection charts shown allow the horizontal throw of the air jet to be obtained from the supply flow rate, when the velocity in the occupied area is 0.20 m/s. Air flow per displacement unit X0.20(m) Horizontal throw of the air jet, when the velocity in the occupied area is 0.20 m/s for a temperature difference of T = -

S-90-CC Model - Quadrant Dimensions The S-90-CC diffuser is a quadrant displacement unit that supplies the air at low velocity to the habitable area. Optional accessories include a plinth and trim. UPPER COVER BAND FASTENER FOR DECORATIVE SECTION LOWER COVER REMOVABLE TRIM SECTION PRESSURE SENSOR DECORATIVE PLINTH

S-90 Series S-90-CC Model - Quadrant Technical data Quick selection table S-90-CC QUICK SELECTION TABLE The air flow, pressure drop and horizontal throw of the air jet are listed below for a velocity of 0.20 m/s in the occupied area, based on a specific sound level. S-90-CC These charts allow the sound level and pressure drop data to be obtained from the supply flow rate. S-90-CC Symbols: Q (m3/h) Air flow per displacement unit Lw^(dBA) Sound power level

S-90-CC Model - Quadrant Selection charts. Throw data S-90-CC The selection charts shown allow the horizontal throw of the air jet to be obtained from the supply flow rate, when the velocity in the occupied area is 0.20 m/s. Air flow per displacement unit X0.20(m) Horizontal throw of the air jet, when the velocity in the occupied area is 0.20 m/s for a temperature difference of T = -3 ºC

12 S-90 Series S-90-R Model - Rectangular Dimensions The S-90-R diffuser is a rectangular displacement unit that supplies the air at low velocity to the habitable area. Optional accessories include a plinth and trim.

S-90 SeriesS-90-R Model - RectangularTechnical data Quick selection table The air flow, pressure drop and horizontal throw of the air jet are listed below for a velocity of 0.20 m/s in the occupied area, based on a specific sound level. These charts allow the sound level and pressure drop data to be obtained from the supply flow rate. Symbols: Q (m3/h) Air flow per displacement unit Lw^(dBA) Sound power level

S-90-R Model - Rectangular Pressure drop and sound level selection charts (continuation) These charts allow the sound level and pressure drop data to be obtained from the supply flow rate. Air flow per displacement unit Pressure drop Sound power l

S-90-R Model - Rectangular Selection charts. Throw data S-90-R The selection charts shown allow the horizontal throw of the air jet to be obtained from the supply flow rate, when the velocity in the occupied area is 0.20 m/s. Air flow per displacement unit X0.20(m) Horizontal throw of the air jet, when the velocity in the occupied area is 0.20 m/s for a temperature difference of T = -3 ºC

S-90 Series S-90-R3 Model - 3-Way Rectangular Dimensions The S-90-R-3 diffuser is a rectangular displacement unit that supplies the air at low velocity to the habitable area in three directions. Optional accessories include a plinth and trim. DIMENSIONS Size

S-90 SeriesS-90-R3 Model - 3-Way RectangularTechnical data Quick selection table The air flow, pressure drop and horizontal throw of the air jet are listed below for a velocity of 0.20 m/s in the occupied area, based on a specific sound level. These charts allow the sound level and pressure drop data to be obtained from the supply flow rate. Symbols: Q (m3/h) Air flow per displacement unit Lw^(dBA) Sound power level