Type ADLR

For horizontal radial supply air discharge, with fixed air control blades – aluminium diffuser face

Circular and square ceiling diffusers for radial air discharge, for high comfort levels, ideal integration into suspended ceilings

  • Nominal sizes 1, 2, 3, 4, 5, 6, 7, 8
  • Volume flow rate range 20 – 650 l/s or 72 – 2340 m³/h
  • Circular or square diffuser face
  • Grille face made of aluminium with anodised finish
  • For supply and extract air
  • For variable and constant volume flows
  • For suspended continuous plasterboard or grid ceilings
  • 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
  • Plenum box with cord-operated damper blade and pressure tap

ADLR-A 00134942_0
  • Application
  • Description

Application

  • Type ADLR 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 radial 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 suspended continuous plasterboard or grid ceilings

Special characteristics

  • Horizontal radial supply air discharge
  • Diffuser face made of aluminium
  • For suspended continuous plasterboard or grid ceilings
  • Horizontal or vertical duct connection

Nominal sizes

  • Circular diffuser face: 244, 300, 356, 412, 468, 542, 598, 654
  • Square diffuser face: 593, 598, 618, 623
  • Diffuser: 1, 2, 3, 4, 5, 6, 7, 8

Variant

  • Circular diffuser face
  • Square diffuser face


Connection

  • A: Diffuser face only
  • AR: Vertical duct connection, with connecting frame
  • C: Vertical duct connection with butterfly damper
  • ZV: Vertical duct connection, with plenum box for supply air
  • AV: Vertical duct connection, with plenum box for extract air
  • ZH: Horizontal duct connection, with plenum box for supply air
  • AH: Horizontal duct connection, with plenum box for extract air

Parts and characteristics

  • Circular or 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

  • Standard cross bar
  • Duct cross bar
  • Lip seal

Materials and surfaces

  • Diffuser face made of aluminium
  • Connecting frame and butterfly damper made of coated sheet steel
  • Plenum box made of galvanised sheet steel
  • Lip seal made of rubber
  • Attachments are dip coated RAL 9005, jet black
  • Diffuser face powder-coated RAL 9010, pure white
  • 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 ADLR, with plenum box for horizontal duct connection 00109805_0.

A ADLR
B ADLR-Q
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 Measuring tube
⑬ Text label indicating plenum box variant

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 ADLR ceiling diffusers have fixed blades. Horizontal air discharge is radial. The supply air to room air temperature difference may range from –10 to +10 K.

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

Nominal sizes – circular diffuser face244, 300, 356, 412, 468, 542, 598, 654 mm
Nominal sizes – square diffuser face593, 598, 618, 623 mm
Nominal sizes – diffuser1, 2, 3, 4, 5, 6, 7, 8
Minimum volume flow rate20 – 230 l/s or 72 – 828 m³/h
Maximum volume flow rate, with LWA ≅ 50 dB(A)515 – 650 l/s or 1854 – 2340 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°
Nominal sizeVΔptLWAΔptLWA
Nominal sizel/sm³/hPadB(A)PadB(A)
1 20 72 7233238
1 35 126 21359853
1 55 198 524724168
1 60 216 624928772
2 35 126 3<151327
2 70 252 13265446
2 115 414 363914564
2 160 576 705028078
3 55 198 3181629
3 115 414 15296851
3 175 630 344015870
3 235 846 625028592
4 80 288 3161531
4 155 558 13295850
4 235 846 294013367
4 310 1116 515023282
5 110 396 4231935
5 180 648 10305150
5 250 900 19379862
5 325 1170 325016577
6 150 540 519934
6 240 864 12312347
6 335 1206 23414659
6 435 1566 385012171
7 200 720 7261435
7 285 1026 13352946
7 370 1332 22434955
7 455 1638 34507564
8 230 828 8281233
8 325 1170 16362442
8 420 1512 27444150
8 515 1854 40506157


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)
1 20 72 7199151917
1 35 126 213027295830
1 55 198 5141674114443
1 75 270 94501255026853
2 35 126 71710182221
2 65 234 253133327435
2 100 360 5842794317647
2 130 468 98511345229856
3 55 198 7188192121
3 95 342 212924306235
3 145 522 4941564114448
3 190 684 8550975024757
4 80 288 7219182021
4 135 486 203026295634
4 190 684 4039513911043
4 250 900 6950894919152
5 110 396 102215223628
5 175 630 253237359239
5 240 864 4741704517349
5 305 1098 76501135427959
6 150 540 92312252626
6 230 828 213129346239
6 310 1116 3740534311349
6 400 1440 6250885218860
7 200 720 142520284036
7 290 1044 293442388446
7 380 1368 4943724714456
7 465 1674 74501085521565
8 230 828 152822295941
8 325 1170 3136443911850
8 420 1512 5144744819757
8 515 1854 77501125529565


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)
1 20 72 6159182016
1 35 126 202828316030
1 55 198 4941694314843
1 75 270 90501295327553
2 35 126 6<159192119
2 65 234 222932337433
2 100 360 5341764517546
2 130 468 89501285329556
3 55 198 7<1510172121
3 100 360 222932327134
3 150 540 4940724416046
3 200 720 87501275428456
4 80 288 6169192120
4 140 504 202927316433
4 205 738 4239584313744
4 270 972 73501015223753
5 110 396 82214253726
5 175 630 223234369238
5 240 864 4041654617449
5 310 1116 67501085529059
6 150 540 82511242524
6 235 846 203427356135
6 320 1152 3742514411345
6 410 1476 6050835318555
7 200 720 112817293930
7 290 1044 223636398341
7 380 1368 3844624814250
7 470 1692 5950945621758
8 230 828 122819315333
8 310 1116 223534399641
8 390 1404 3443544615249
8 470 1692 5051795222156


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

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

Diffuser face suitable for central screw fixing.

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

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

Special characteristics

  • Horizontal radial supply air discharge
  • Diffuser face made of aluminium
  • For suspended continuous plasterboard or grid ceilings
  • Horizontal or vertical duct connection

Materials and surfaces

  • Diffuser face made of aluminium
  • Connecting frame and butterfly damper made of coated sheet steel
  • Plenum box made of galvanised sheet steel
  • Lip seal made of rubber
  • Attachments are dip coated RAL 9005, jet black
  • Diffuser face powder-coated RAL 9010, pure white
  • P1: Powder-coated, RAL CLASSIC colour

Technical data

  • Nominal sizes – circular diffuser face: 244, 300, 356, 412, 468, 542, 598, 654 mm
  • Nominal sizes – square diffuser face: 593, 598, 618, 623 mm
  • Nominal sizes – diffuser: 1, 2, 3, 4, 5, 6, 7, 8
  • Minimum volume flow rate: 20 – 230 l/s or 72 – 828 m³/h
  • Maximum volume flow rate, with LWA ≅ 50 dB(A): 515 – 650 l/s or 1854 – 2340 m³/h
  • Supply air to room air temperature difference: –10 to +15 K

00100708_0

 Type
ADLR       Ceiling diffuser

 Construction style
       No entry: circular
Q       Square

 Connection
A       Diffuser face only
AR       Vertical, with connecting frame
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: none
M       With (only for connections ZV, AV, ZH, AH)
MN       With cords and pressure tap (only for connections ZH, AH)

 

 Accessories
No entry: none
L       With lip seal (only for connections ZV, AV, ZH, AH)

 Nominal size
       ADLR (circular)
1 to 8
       ADLR-Q (square)
593 × 1 to 7
598 × 1 to 7
618 × 1 to 8
623 × 1 to 8
       Size of diffuser face plate × nominal size

 Exposed surface
       No entry: powder-coated RAL 9010, pure white
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