05/08 - 2 Construction subject to change. Version: 20.09.2019 No return possible!

Ceiling diffuser 4DE Description Square ceiling diffuser type 4DE with manually adjustable air deflection blades. The blades can be adjusted from below even if the diffuser is installed in order to allow an adaptation of the air throw pattern to changing room use. Both horizontal and vertical air throw patterns can be achieved. The ceiling diffuser type 4DE can be used in heating or cooling mode. The fastening without edges of the air deflection blades in the front plate allows easy cleaning. The air deflection blades made of plastic in support blade profile are aerodynamic and ensure an optimal...

Ceiling diffuser 4DE Fastening Screw mounting (-SM), standard - with 4 on-site slotted shallow-raised, countersunk-tapping head screws ( not possible for NW 800) Concealed mounting (-VM) - Pole brace fixing (at an extra charge) only available with plenum box (SK-Q-...) (standard for NW 800) - fixed to the plenum box with a hexagonal socket head screw DIN EN ISO 4762 M6 Screw mounting with concealed mounting (-VS) - Screw mounting (-SM) in combination with concealed mounting (-VM) - only possible for NW 800 in conjunction with ball-impact guard (-BS) Construction subject to change.

Ceiling diffuser 4DE Models and dimensions Air throw pattern Possible blade settings and screw mounting (SM) Air throw "H" (horizontal) all blades in position 2 Air throw pattern "H" is preset in factory air jet guidance "V" (vertical) Different blade settings, blade positions 1 and 2 Blade position 1 4DE-...-800-... with concealed mounting (VM) 1 = Indentation for slotted shallow-raised countersunk-head tapping screw DIN ISO 7051 pitch 3.9 2 = available from NW 400. Indentation for raised countersunk head tapping screw according to DIN ISO 7051 pitch 4.8. 05/08 - 5 Construction subject to change....

Ceiling diffuser 4DEDimensions 4DE-Z with SK-Q-06-Z-... (for supply air) 1) = Inside painted to RAL 9005 (black) Available sizes KHS= standard height of plenum box Special height of plenum box = 0D + l02mm, but at least 200mm Spigot positions Construction subject to change.

Ceiling diffuser 4DE Dimensions of accessories (at an extra charge): Volumetric flow meter (-VME1) Hit-and-miss damper (-SS) 4DE-Z-...-SS-... (supply air) A hit-and-miss damper is only available for an aluminium faceplate together with SM mounting. ROB version (-ROB1) Removable diffuser plate, damper and volumetric flow meter. Available sizes Insulation for SK-Q-... internal (-Ii) external (-Ia) Construction subject to change.

ball-impact guard (-BS) (only possible with SM mounting and for NW 800 only with VS mounting) Fastening methods Screw mounting (-SM) Detail Y For screw mounting, the ceiling diffuser is fixed to the plenum box with 4 on-site countersunk screws (not possible for NW 800) concealed mounting (-VM, at extra cost) 4DE-Z-... Dimensions VS mounting (for NW 800 only) SM mounting for NW 310-625, see p. 5. For concealed mounting the ceiling diffuser is fixed to the plenum box with a traverse and a hexagonal socket head screw DIN EN ISO 4762 M6 Construction subject to change.

Ceiling diffuser 4DE Technical data Pressure loss and noise level 4DE-Z-... (supply air), with plenum box 4DE-A-... (return air), with plenum box Air throw "V" (vertical) Damper position OPEN Damper position CLOSED 05/08 - 9 Construction subject to change. Version: 20.09.2019 No return possible!

Ceiling diffuser 4DE 4DE-Z-...-SS-... with hit-and-miss damper 4DE-A-...-SS-... with hit-and-miss damper Hit-and-miss damper 100% OPEN Hit-and-miss damper 50% OPEN 05/08 - 10 Construction subject to change. Version: 20.09.2019 No return possible!

Construction subject to change.

Critical throw 05/08 - 12 Construction subject to change. Version: 20.09.2019 No return possible!

Ceiling diffuser 4DE Maximum penetration In heating mode 4DE-Z-310-... 05/08 - 13 Construction subject to change. Version: 20.09.2019 No return possible!

Induction ratios Temperature ratios Construction subject to change. Supply air volume Supply air volume Return air volume Return air volume Pressure loss A-weighted sound power level Density Maximum end velocity of jet Average end velocity of jet (v = vmax x 0.5) horizontal throw vertical throw Horizontal + vertical throw Critical throw Temperature difference between supply air temperature and room temperature (aTo = tZU - tR) Supply air temperature Room temperature Maximum penetration in heating mode Induction ratio (i = Vx/ Vzu) Temperature ratio (TV = aTx/ aTo) Nominal width Temperature difference...

Ceiling diffuser 4DE Order details 4DE 01 Sample 4DE-Z-500-SB-9010-L9005-H-VM-SN-B0 Ceiling diffuser type 4DE I supply air I NW500 I faceplate made of sheet steel I faceplate painted to RAL9010 I blade colour similar to RAL9005 black I air throw pattern H (horizontal) I concealed mounting I without hit-and-miss damper I without ball-impact guard Order details 01 - Type 4DE = Ceiling diffuser 02 - Air throw Z = Supply air A = Return air 03 - Nominal size 310 = NW310 400 = NW400 500 = NW500 600 = NW600 625 = NW625 800 = NW800 04 - Material SB = Sheet steel (standard) AL = Aluminium (only available...

Ceiling diffuser 4DE Order details SK 01 Plenum box, square design I for square air diffusers I air diffuser 4DE I supply air I NW500 I with concealed 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 Order details 01 - Plenum box SK = Plenum box, square design 02 - Model Q = for square air diffusers 03 - Air diffuser (must be ordered separately) 06 = suitable for 4DE-... 04 - Type of air Z = Supply air A = Return air 05 -...

Ceiling diffuser 4DE 13 - Height of plenum box KHS = Height of plenum box standard xxx = Height of plenum box in mm (Heightmin = spigot diameter +102 mm, but at least 200 mm) 14 - Spigot diameter SDS = Standard spigot diameter xxx = Spigot diameter in mm 15 - Spigot position S0 = Spigot from above S1 = 1 lateral spigot on the box (standard) S2 = 2 spigots offset by 90° S3 = 2 spigots offset by 180° S5 = 2 spigots arranged next to each other Construction subject to change.