HDF - Grille

Exhaust grille with filter, reduced visibility through grille

Aesthetic in design.

  • Large free area
  • Integrated filter of class EU3
  • Reduced visibility through grille due to shaped horizontal vanes
  • Sizes adapted to suit modular 600 x 600 mm suspended ceilings
  • Openable core vanes for direct access to the filter
  • Screw fastening

Product models and accessories

  • Airflow adjustment damper
  • Balancing plenum with measurement and adjustment functions
  • Plenum insulation
  • Spare filter

The exhaust grille shall have a large free area.

Non-clogging lightweight construction with fixed curved vanes shall prevent visibility through the grille. The joints of the outer frame shall be practically invisible.

The grille shall be mill-finished, anodised, or polyester-painted with a white (RAL 9003/30%) standard colour.

Sizes 570x270 mm and 570x570 mm shall be adapted to modular 600x600 mm suspended ceilings.
The grille shall comprise a filter of EU3 class (Eurovent method 4/5).

The grille shall be connected to the duct using a plenum.
The Halton BDR or PRL plenum shall utilise sound attenuation material made of mineral wool (optional).
Airflow measurement and adjustment unit MEM is available as an accessory to plenum.

The exhaust grille shall be openable in order to provide direct access to the filter.

Halton HDF

Exhaust grille with filter, reduced visibility through grille 

  • Large free area
  • Integrated filter of class EU3
  • Reduced visibility through grille due to shaped horizontal vanes
  • Sizes adapted to suit modular 600 x 600 mm suspended ceilings
  • Openable core vanes for direct access to the filter
  • Screw fastening

Product models and accessories

  • Airflow adjustment damper
  • Balancing plenum with measurement and adjustment functions
  • Plenum insulation
  • Spare filter

Dimensions


 

LxH L1 L2 H1 H2
570x270 295 245 595 545
570x570 595 545 595 545


With flow control damper OD total depth = 50 mm + 45 mm.

The free area of the HDF grille is 75%.

Material

 Part  Material  Finishing  Note
 Frame  Aluminium  Mill-finished, anodised,
 or polyester-painted
 as white
 (RAL 9003/30% gloss)
 Epoxy-painting
 (100%) available
 Fixed vanes  Aluminium  Mill-finished, anodised,
 or polyester-painted
 as white
 (RAL 9003/30% gloss)
 Epoxy-painting
 (100%) available
 Air filter  Frame in galvanised
 steel
 Filter in polyester
 -  EU3 class
 (Eurovent 4/5 method)
 Plenum box,
 spigot
 Galvanised steel  -  -

Accessories

 Accessory Code  Description
 Special plenum for HDF Special BDR  Plenum for duct connection
 (with or without attenuation material),
 please contact Customer Service
 Airflow measurement
 and adjustment unit
MEM  For exhaust installation
 Sound attenuation IN  Mineral wool for the special BDR plenum box
 Filter F1, F2  Spare filter

Function

Air is exhausted from the space with a low pressure drop.
Wall or ceiling installation.

Installation

The grille is connected to the duct using a special BDR plenum.
The grille is fastened in place with invisible screws (not supplied), which are screwed in through the frame.
 

Dimensions of opening

LxH  Opening
570x270  565x265
570x570  565x565

Adjustment

In order to enable adjustment and measurement of the airflow rate, it is recommended that you connect the diffuser to the special BDR plenum equipped with the MEM module.

The airflow rate can be adjusted and measured only when the grille is connected to the special BDR plenum.
Define the exhaust airflow rate by measuring the pressure difference between the measurement tap on the special BDR plenum and the room air. The corresponding airflow rate is calculated using the formula below.

Adjust the airflow rate by turning the control spindle of the MEM.

K factor for installations with different safety distances
(D= duct diameter)       

BDR  > 6xD  min. 3xD 
100  6 7
125  10 12
160  19 22
200  28 32
250  49 51
315  77 83

 

Airflow adjustment damper OD

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

Servicing

Remove the grille by gently drawing it out by the frame. Use a screwdriver if necessary.
Clean the parts by wiping with a damp cloth.
The filter can be removed for replacement by sliding sideways.
Push the grille back into place until the springs lock.
 

Option: With balancing plenum Halton PRL+MEM or Halton BDR+MEM

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.
Reassemble the measurement and adjustment module by pushing the shaft back into place until the module meets the stopper.
Push the grille back into place so that the springs lock.

Specification

The exhaust grille shall have a large free area.

Non-clogging lightweight construction with fixed curved vanes shall prevent visibility through the grille. The joints of the outer frame shall be practically invisible.

The grille shall be mill-finished, anodised, or polyester-painted with a white (RAL 9003/30%) standard colour.

Sizes 570 x 270 mm and 570 x 570 mm shall be adapted to modular 600 x 600 mm suspended ceilings.
The grille shall comprise a filter of EU3 class (Eurovent method 4/5).

The grille shall be connected to the duct using a plenum.
The Halton BDR or PRL plenum shall utilise sound attenuation material made of mineral wool (optional).
Airflow measurement and adjustment unit MEM is available as an accessory to plenum.

The exhaust grille shall be openable in order to provide direct access to the filter.

Order code

HDF-L-H, FI-CO-ZT

L = Length
  
    570

H = Height
       270,570
 

Other options and accessories

FI  = Finishing
         AN     Anodised (class 10 um)
         MF     Mill finished
         PN     Painted

CO = Colour
          SW    White (RAL 9003)
          X       Special colour (RAL xxxx)
          N       No painting

ZT = Tailored product
 
       Y       Yes
         N       No (ETO) 
 

Sub products

         BDR      Plenum
         PRL       Plenum
         FI          Filter

Code example

        HDF-570-270, FI=AN, CO=N, ZT=N

References stored

References stored

20000440            HDF-570X270-W
20000441 HDF-570X570-W
20002423 HDF 570X270+FILTRE-OAI

 

Accessories stored

20005129 OD-570x570    
20005232 BDR 570X570-400                                 
20005233 BDR 570X270-315-HDF                                 

Downloads & Media

Halton HDF - fr
Type
Datasheet
Language
French (France)
Size
389.6 kB