DQDL
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05/13 - 2 Construction subject to change. Version: 08.04.2020 No return possible!

Description The ceiling diffuser type DQDL is suitable for installation in supply or return air systems. Because of its horizontal air throw pattern, it can be used for isothermal and cooling applications. The air is blown horizontally into the room through fixed blades. Owing to the perforations in the edge area, part of the air flow exits as laminar flow. This laminar flow is also deflected in horizontal direction as a result of the horizontal air jet produced by the blades. If required, each blade section can be supplied with a cover plate, so that one or more sides can be covered. This...

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Ceiling diffuser DQDL Fastening Screw mounting (-SM) - Standard (screws must be provided on-site) - for model with ball-impact guard Concealed mounting (-VM) - only available in connection with plenum box type SK-Q-17-... at an extra charge. - Traverse fixing by a M6 screw according to DIN EN ISO 10642 for mounting at the plenum box. Available sizes KHS= standard height of plenum box Special height of plenum box = 0D + 102mm, but at least 200mm Dimension of plenum box SK-... for spigot position S0 / S2 / S3 / S5 on request. See page 5 for detail X. See page 6 for detail Y. Construction...

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Ceiling diffuser DQDL Accessories - dimensions Thermal insulation, for SK-Q-... internal (-Ii) (at an extra charge): Damper (-DK1), for SK-Q-... Rubber lip seal (-GD1), for SK-... Detail X 1/4 cover plate (-AD) (only supply air version possible) ROB version (-ROB1), for SK-Q-... (only possible for SK-Q-17-... plenum box) Removable diffuser plate, damper and volumetric flow meter. Volumetric flow meter (-VME1), for SK-... (not for use with a damper) 05/13 - 5 Construction subject to change. Version: 08.04.2020 No return possible!

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Ball-impact guard (-BS) (only possible with screw mounting SM) Fastening methods Screw mounting (-SM) For screw mounting, the ceiling diffuser is fixed to the plenum box with 4 on-site countersunk screws. Arrangement of SM mounting Indentation for slotted shallow-raised countersunk-head tapping screw (shown without perforation) Concealed mounting (-VM) In concealed mounting (-VM), the ceiling diffuser is fixed to the plenum box with a pole brace and an M6 screw to DIN EN ISO 4762. Construction subject to change.

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Ceiling diffuser DQDL Technical data Pressure loss and noise level DQDL-Z-... (for supply air) = Damper CLOSED = Damper OPEN 05/13 - 7 Construction subject to change. Version: 08.04.2020 No return possible!

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Ceiling diffuser DQDL Pressure loss and noise level DQDL-A-... (for return air) Damper position: ____ ---- Damper OPEN Damper CLOSED During baffling the noise level is not increased. 05/13 - 8 Construction subject to change. Version: 08.04.2020 No return possible!

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Ceiling diffuser DQDL Maximum end velocity of jet 05/13 - 9 Construction subject to change. Version: 08.04.2020 No return possible!

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Ceiling diffuser DQDL Maximum end velocity of jet (suspended) 05/13 - 10 Construction subject to change. Version: 08.04.2020 No return possible!

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Ceiling diffuser DQDL Jet path DQDL (without deflection sheets) DQDL (with deflection sheets) When the ceiling diffuser is suspended, a deflector sheet additionally fitted on-site can prevent the jet from dropping prematurely. on site 05/13 - 11 Construction subject to change. Version: 08.04.2020 No return possible!

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Ceiling diffuser DQDL Critical throw DQDL in cooling mode Induction and temperature ratios Induction and temperature ratios (freely suspended) 05/13 - 12 Construction subject to change. Version: 08.04.2020 No return possible!

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Supply air volume Return air volume Maximum end velocity of jet Average end velocity of jet horizontal throw vertical throw Horizontal and vertical throw Critical jet path Density Pressure loss A-weighted sound power level Temperature difference between supply air temperature and room temperature (aTo = tzu - tR) Supply air temperature Room temperature Induction ratio (i = Vx / Vzu) Temperature ratio (TV = ATx / ATq ) Nominal width Temperature difference at point x total air jet volume at point x Construction subject to change.

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Ceiling diffuser DQDL Order code DQDL 01 Sample DQDL-Z-500-SB-9010-VM-A0-B0 Ceiling diffuser type DQDL I supply air I NW500 I faceplate made of sheet steel I faceplate painted to RAL9010 I concealed mounting I without cover I without ball-impact guard Order details 01 - Type DQDL = ceiling diffuser with square faceplate 02 - Air throw Z = Supply air 04 - Material SB = Sheet steel (standard) 05 - Paint 9010 = RAL colour white (standard, only possible for -SB model) xxxx = RAL colour can be freely selected (only possible for -SB model) 06 - Mounting VM = Concealed mounting (only in...

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Ceiling diffuser DQDL Order code SK 01 Plenum box, square design I for square air diffusers I air diffuser DQDL I supply air I NW600 I with screw mounting I galvanised sheet steel I with damper I with rubber lip seal I with volumetric flow meter I without ROB model I without box insulation I standard height of plenum box I standard spigot diameter I 1 lateral spigot I Order details 01 - Plenum box SK = Plenum box, square design 02 - Model Q = for square air diffusers 03 - Air diffuser (must be ordered separately) 17 = suitable for DQDL-... 04 - Type of air Z = Supply air (with integrated...

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Specification texts Ceiling diffuser type DQDL-... for supply or return air, with square faceplate. Suitable for isothermal and cooling applications. Especially for installation in comfort rooms. Consisting of faceplate with fixed blades for horizontal air throw and perforated edges Product: SCHAKO type DQDL-... Air throw: - Supply air (-Z) - Return air (-A) Nominal size: - NW310 (-310) - NW400 (-400) - NW500 (-500) - NW600 (-600) - NW625 (-625) Material: - Sheet steel painted with a high-quality powder coating to the RAL colour 9010 (-SB-9010, white) (standard) - Sheet steel painted with a...

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