Type ADLQ

For four-way horizontal supply air discharge, with fixed air control blades – aluminium diffuser face

Square ceiling diffusers

  • Nominal sizes 250, 300, 400, 500, 600, 625
  • Volume flow rate range 20 – 665 l/s or 72 – 2394 m³/h
  • Square diffuser face
  • Grille face made of aluminium with anodised finish
  • For supply and extract air
  • For variable and constant volume flows
  • For all types of ceiling systems
  • High induction results in a rapid reduction of the temperature difference and airflow velocity


Optional equipment and accessories

  • Exposed diffuser face available in RAL CLASSIC colours
  • Horizontal or vertical duct connection
  • Blanking plates for adjusting the discharge direction
  • Duct cross bar for installation without plenum box
  • Plenum box with cord-operated damper blade and pressure tap

ADLQ/500 00135034_0
  • Application
  • Description

Application

  • Type ADLQ ceiling diffusers are used as supply air or extract air diffusers for comfort zones
  • Attractive design element for building owners and architects with demanding aesthetic requirements
  • Horizontal four-way supply air discharge for mixed flow ventilation
  • High induction results in a rapid reduction of the temperature difference and airflow velocity (supply air variant)
  • For variable and constant volume flows
  • For supply air to room air temperature differences from –10 to +10 K
  • For room heights up to 4 m (lower edge of suspended ceiling)
  • For all types of ceiling systems

Special characteristics

  • Horizontal four-way supply air discharge
  • Diffuser face made of aluminium
  • For all types of ceiling systems
  • Horizontal or vertical duct connection

Nominal sizes

  • 250, 300, 400, 500, 600, 625

Variant

  • Square diffuser face


Connection

  • A: Diffuser face only
  • AR: Vertical duct connection, with connecting frame
  • AG: Vertical duct connection, with blades
  • C: Vertical duct connection with butterfly damper
  • H: Horizontal duct connection, with plenum box
  • X: Horizontal duct connection, with flexible plenum box FLEXTRO

Parts and characteristics

  • Square diffuser face with fixed air control blades
  • Diffuser front frame
  • Simple installation of the diffuser face due to central fixing screw with decorative cap

Accessories

  • Lip seal

Construction features

  • Spigot suitable for circular ducts to EN 1506 or EN 13180

Materials and surfaces

  • Diffuser face made of extruded aluminium sections
  • AK: Plenum box and cross bar made of galvanised sheet steel
  • X: Plenum box made of plastic and galvanised sheet steel
  • Connecting frame and butterfly damper made of sheet steel
  • Lip seal made of rubber
  • Attachments are dip coated RAL 9005, jet black
  • Diffuser face with anodised finish, E6-C-0, natural colour
  • P1: Powder-coated, RAL CLASSIC colour

Standards and guidelines

  • Sound power level of the air-regenerated noise measured according to EN ISO 5135

Maintenance

  • Maintenance-free as construction and materials are not subject to wear
  • Inspection and cleaning to VDI 6022

Technical information

  • Function
  • Technology
  • Quick sizing
  • Specification text
  • Order code
Schematic illustration of the ADLQ, with plenum box for horizontal duct connection 00105446_0...

① Diffuser face
② Central fixing screw
③ Plenum box
④ Cross bar
⑤ Suspension hole
⑥ Spigot


Optional
⑦ Lip seal
⑧ Damper blade for volume flow rate balancing
⑨ Pressure tap
⑩ Green cord for closing the damper blade
⑪ White cord for opening the damper blade
⑫ Text label indicating plenum box variant
⑬ Measuring tube

Functional description

Ceiling diffusers direct the air from air conditioning systems into the room. The resulting airflow induces high levels of room air, thereby rapidly reducing the airflow velocity and the temperature difference between supply air and room air. Ceiling diffusers allow for large volume flow rates. The result is a mixed flow ventilation in comfort zones, with good overall room ventilation, creating only very little turbulence in the occupied zone.

Type ADLQ ceiling diffusers have fixed blades. Horizontal air discharge is four-way. The supply air to room air temperature difference may range from –10 to +10 K.

To give rooms an aesthetic, uniform look, Type ADLQ diffusers may also be used for extract air.

Nominal sizes250, 300, 400, 500, 600, 625 mm
Minimum volume flow rate20 – 250 l/s or 72 – 900 m³/h
Maximum volume flow rate, with LWA ≅ 50 dB(A)575 – 665 l/s or 2070 – 2394 m³/h
Supply air to room air temperature difference–10 to +10 K


Quick sizing – sound power level and total differential pressure

Nominal sizeVDamper blade position
Nominal sizeV45°90°
Nominal sizeVΔptLWAΔptLWAΔptLWA
Nominal sizel/sm³/hPadB(A)PadB(A)PadB(A)
250 20 72 5<156<1511<15
250 40 144 203024294230
250 60 216 464254419542
250 85 306 92511085119052
300 35 126 6<159<152018
300 70 252 263037328138
300 100 360 5241754316648
300 130 468 89501265128057
400 75 270 9<1515193229
400 130 468 273144389545
400 185 666 5442904819258
400 230 828 84501385629769
500 135 486 121518234235
500 210 756 2932453910149
500 285 1026 5342824818560
500 360 1296 84501315729571
600 220 792 122219255034
600 330 1188 2733433911246
600 440 1584 4843774919855
600 540 1944 72501165629963
625 250 900 142227336339
625 330 1188 2532474211047
625 410 1476 3839735017053
625 575 2070 75501436433367


Quick sizing – sound power level and total differential pressure

Nominal sizeVDamper blade position
Nominal sizeV45°90°
Nominal sizeVΔptLWAΔptLWAΔptLWA
Nominal sizel/sm³/hPadB(A)PadB(A)PadB(A)
600 625 220 792 3430624012547
600 625 280 1008 54371004920355
600 625 340 1224 80431475629963
600 625 405 1458 114502096342470


Ceiling diffusers with square diffuser face. Supply air and extract air variants for comfort zones. Diffuser face with fixed air control blades for horizontal four-way air discharge. For installation into all types of suspended ceilings.

Ready-to-install component which consists of the aluminium diffuser face with fixed air control blades, a diffuser front frame with perimeter seal and a connecting frame, opposed action blades, butterfly damper or a plenum box.

Diffuser face suitable for central screw fixing.

Sound power level of the air-regenerated noise measured according to EN ISO 5135.

Special characteristics

  • Horizontal four-way supply air discharge
  • Diffuser face made of aluminium
  • For all types of ceiling systems
  • Horizontal or vertical duct connection

Materials and surfaces

  • Diffuser face made of extruded aluminium sections
  • AK: Plenum box and cross bar made of galvanised sheet steel
  • X: Plenum box made of plastic and galvanised sheet steel
  • Connecting frame and butterfly damper made of sheet steel
  • Lip seal made of rubber
  • Attachments are dip coated RAL 9005, jet black
  • Diffuser face with anodised finish, E6-C-0, natural colour
  • P1: Powder-coated, RAL CLASSIC colour

Technical data

  • Nominal sizes: 250, 300, 400, 500, 600, 625 mm
  • Minimum volume flow rate: 20 – 250 l/s or 72 – 900 m³/h
  • Maximum volume flow rate, with LWA ≅ 50 dB(A): 575 – 665 l/s or 2070 – 2394 m³/h
  • Supply air to room air temperature difference: –10 to +10 K

00133951_0

 Type
ADLQ       Ceiling diffuser

 Connection
A       Diffuser face only
AR       Vertical, with connecting frame
AG       Vertical, with blades (not for nominal size 250)
C       Vertical, with butterfly damper
ZV       Vertical, supply air, with plenum box
AV       Vertical, extract air, with plenum box
ZH       Horizontal, supply air, with plenum box
AH       Horizontal, extract air, with plenum box

 Damper blade for volume flow rate balancing
       No entry: without damper blade
       Only for connection ZH, AH
M       With damper blade
MN       With cords and pressure tap

 

 Accessories
       No entry: without accessories
L       With lip seal (only with plenum box)

 Nominal size [mm]
250
300
400
500
600
625

 Exposed surface
       No entry: anodised, E6-C-0, natural colour
P1       Powder-coated, specify RAL CLASSIC colour

       Gloss level
       RAL 9010 50 %
       RAL 9006 30 %
       All other RAL colours 70 %

 

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Contact

Thank you for your message!

Visual contact Visual contact

Your message is send and will be processed shortly.
Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +49 (0)2845 / 202-0 | Fax: +49 (0)2845/202-265