DFB - Conical diffuser

Square conical diffuser for ceiling installation

Easy to clean and maintain.

  • Suitable for horizontal supply and exhaust
  • Openable cone module enables cleaning of the diffuser and ductwork.
  • All sizes adapted for installation in modular 600x600 mm suspended ceiling
  • Lightweight aluminum material

ACCESSORIES

  • Airflow adjustment damper
  • Plenum options with measurement and adjustment functions
  • Measurement and adjustment module

The diffuser shall be made of extruded aluminium, polyester-painted to white (RAL 9010) colour.

The bevel angles of the outer frame and central cone shall be welded so that the joints are almost invisible.

The diffuser shall be connected to the ductwork using a plenum with mineral wool as sound attenuation material.

The plenum shall be equipped with an airflow measurement and adjustment module.
The central cones of the diffuser shall be detachable to provide access to the measurement and adjustment module in the plenum.

Introduction

DFB

Square conical ceiling diffuser
 


 

  • Suitable for horizontal supply and exhaust
  • Openable cone module enables cleaning of the diffuser and ductwork.
  • All sizes adapted for installation in modular 600x600 mm suspended ceiling
  • Lightweight aluminum material
     

Accessories

  • Airflow adjustment damper
  • Plenum options with measurement and adjustment functions
  • Measurement and adjustment module
     

Dimensions

DIMENSIONS

 

NS W W1
6x6 295 150
9x9 370 225
12x12 445 300
15x15 520 375
18x18 595 450
21x21 670 525
24x24 745 600

 



 

NS W W1 H ØD
6x6 295 150 225 124
9x9 370 225 310 199
12x12 445 300 350 249
15x15 520 375 415 314
18x18 595 450 500 399
21x21 670 525 550 449
24x24 745 600 600 499


Material

MATERIAL AND FINISHING

 

PART MATERIAL FINISHING NOTE
Frame Aluminium Polyester-painted/
White RAL 9010/
50% gloss
Special colours available
Central cone Aluminium Polyester-painted/
White RAL 9010/
50% gloss
Special colours available



 

Accessories

ACCESSORIES

 

ACCESSORY CODE DESCRIPTION
Plenum PDF/H Plenum for horizontal duct connection
(with or without insulation)
Plenum PDF/V Plenum for vertical duct connection
(with or without insulation)
Airflow measurement
and adjustment module
MSM For supply installation
Sound attenuation IN Mineral wool in the plenum
Flow adjustment damper ODD Aluminium opposite blade damper for
flow adjustment

 

PRODUCT MODELS

All standard sizes are available also with 1, 2 or 3 supply directions (DFC).


 

Function

FUNCTION

 

 

Air is supplied horizontally into the space through the slots in the conical front panel.
Supply air mixes with room air in the vicinity of the diffuser.
The fixed cones of the diffuser are designed to ensure that the supply air flows along the ceiling.
The DFB diffuser can also be used as an exhaust unit. 

Installation

 

 INSTALLATION



 

  1. Plenum
  2. Spigot
  3. Clips
  4. DFB or DFC plenum

Plenum installation
The plenum is installed into the suspended ceiling with M8 drop rods (not supplied in the delivery) and connected to the ductwork with a spigot.
When equipped with a measurement and adjustment module, the recommended safety distance upstream of the device is at least 3xD, in order to ensure a reliable airflow rate measurement.
The units control spindle must not be excessively bent.

Diffuser installation
The diffuser is attached to the plenum via clips.

 

Dmiensions of installation hole
 

NS H (mm) L (mm)
6x6 215 215
9x9 290 290
12x12 365 365
15x15 440 440
18x18 515 515
21x21 590 590
24x24 665 665

Adjustment

ADJUSTMENT 

To aid in adjusting and measuring the air flow rate, it is recommended that the diffuser is connected to a plenum equipped with a MSM.
The supply air flow is determined by measuring the pressure difference with a measurement module.
Measure the differential pressure with a manometer. The air flow rate is calculated according to the following formula:
 

where:

∆Pm is the measured pressure (Pa)
is a factor given as a function of mounting and diameter
Qv is the airflow rate

 

The k factor for installations with different safety distances (distance of other items from the MSM):

 

Safety distance
Sigot Diameter > 6XD min 3XD
100 6 7
125 10 12
160 19 22
200 28 32
250 49 51
315 78 -

 

Airflow adjustment damper OD

The airflow rate is adjusted by turning the damper blades behind the grille with a screwdriver. The measurement is carried out when diffuser is installed.

Servicing

SERVICING

 

Remove the central cones by gently drawing out the central part.
Clean the parts by wiping them with a damp cloth.
Push the central cones back into place so that the springs lock.



Option: with balancing plenum PDF + MSM

 

Remove the measurement and adjustment module by gently pulling the shaft (not the control spindle).
Wipe the parts with a damp cloth, instead of immersing in water.
Remount the measurement and adjustment module by pushing in the shaft until the module meets the stopper.
Push the central cones back into place so that the springs lock.

Specification

SUGGESTED SPECIFICATIONS

The diffuser shall be made of extruded aluminium, polyester-painted to white (RAL 9010) colour.

The bevel angles of the outer frame and central cone shall be welded so that the joints are almost invisible.

The diffuser shall be connected to the ductwork using a plenum with mineral wool as sound attenuation material.

The plenum shall be equipped with an airflow measurement and adjustment module.
The central cones of the diffuser shall be detachable to provide access to the measurement and adjustment module in the plenum.
 

Product Code

PRODUCT CODE


DFB/S-A-B


   S = Model   
    A  Standard
    B  Suspended ceiling installation 600x600
    C  Suspended ceiling installation 675x675

   A = Size of connection
    S=A: 6, 9, 12, 15, 18, 21, 24
    S=B: 6, 9, 12, 15
    S=C: 6, 9, 12, 15, 18

   B = Height of connection
    A=6: 6
    A=9: 9
    A=12: 12
    A=15: 15
    A=18: 18
    A=21: 21
    A=24: 24


Specifics and accessories

   FI = Finishing   
    PN  Painted
   
   CO = Colour
    W  White
    X  Special colour
 

Code example

   DFB/A-6-6, FI=PN, CO=W
 

Sub products
 

   PDF  Plenum for DFB and DFC
 

References stored

References stored

20000244

DFB-12X12-W
20000246 DFB-18X18-W
20000249 DFB-600-12X12-W
20000250 DFB-600-15X15-W
20000251 DFB-600-6X6-W
20000252 DFB-600-9X9-W
20000253 DFB-6X6-W
20000254 DFB-9X9-W

 

Accessories stored 

20005701 PDF/H-12x12
20005702 PH-15x15
20005704 PDF/H-6x6
20005705 PDF/H-9x9
20007162 PDF/H-18x18 diam400
20000622 OD/DF-12x12
20000623 OD/DF-15x15
20000624 OD/DF-18x18
20000627 OD/DF-6x6
20000628 OD/DF-9x9

Downloads & Media

Halton DFB - ru
Type
Datasheet
Language
Russian (Russia)
Size
799.3 kB
Halton DFB - gb
Type
Datasheet
Language
English (United Kingdom)
Size
768.9 kB
Halton DFB - dk
Type
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Language
Danish (Denmark)
Size
771.2 kB
Halton DFB - fr
Type
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Language
French (France)
Size
713.2 kB
Halton DFB - se
Type
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Language
Swedish (Sweden)
Size
769.0 kB
Halton DFB - fi
Type
Datasheet
Language
Finnish (Finland)
Size
769.1 kB
Halton DFB - nl
Type
Datasheet
Language
Dutch (Netherlands)
Size
769.8 kB