Low pressure and sound levels – quiet in use
LxH | L1 | L2 | H1 | H2 |
200×100 | 226 | 176 | 126 | 76 |
300×150 | 326 | 276 | 176 | 126 |
400×200 | 426 | 376 | 226 | 176 |
300×300 | 326 | 276 | 326 | 276 |
500×300 | 526 | 476 | 326 | 276 |
600×300 | 626 | 576 | 326 | 276 |
600×400 | 626 | 576 | 426 | 376 |
800×400 | 826 | 776 | 426 | 376 |
570×270 | 596 | 546 | 296 | 246 |
570×570 | 596 | 546 | 596 | 546 |
1170×570 | 1196 | 1146 | 596 | 546 |
With flow control damper OD total depth is 32 mm + 45 mm.
The free area of the AGC grille is 92 %.
Nominal sizes are 595 x 595 mm and 1195 x 1195 mm.
In addition to these standard sizes, other dimensions can be specially ordered. The maximum size is 1200×670 mm (LxH).
Part | Material | Finishing | Note |
Frame | Aluminium | Anodised or polyester-painted, White (RAL 9003/30% gloss) |
Special colours available. 100 % epoxy-painted as an option. |
Egg crate core (13x13x13 mm) |
Aluminium | Anodised or polyester-painted, White (RAL 9003/30% gloss) |
Special colours available. 100 % epoxy-painted as an option. |
Installation frame | Galvanised steel |
– | Option: Concealed screw (CC) fastening – galvanised steel |
Plenum box / spigot | Galvanised steel |
– | – |
The bevel angles of the outer frame have been welded so that the joints are almost invisible.
Product model | Code | Description |
Grille without frame | AGC/S | Installation on ceiling profiles |
Accessory | Code | Description |
Balancing plenum | PRL | For balancing and equalising the airflow and attenuating the duct noise |
Plenum | BDR | Plenum for duct connection (with or without attenuation material) |
Airflow measurement and adjustment unit |
MEM | For exhaust |
Sound attenuation | IN | Mineral wool for the Halton BDR plenum box. Mineral wool or polyester fiber for the Halton PRL plenum box. |
Installation frame | IF | For installation without plenum |
Concealed screw fixing | CC | For installation with BDR plenum or IF frame |
Visible screw fastening | SF | Screw fastening |
Both models Halton AGC and Halton AGC/S can be equipped with following alternative mesh types.
Mesh | Code | Description |
Standard mesh | ME=A | Aluminium egg crate core 13mm x 13mm x 13mm |
Special mesh B | ME=B | Aluminium egg crate core 15mm x 15mm x 13mm |
Special mesh C | ME=C | Aluminium egg crate core 13mm x 13mm x 13mm with a deflection of 45° to reduce the visibility through the grille |
Air is exhausted from the space through the egg crate core of the grille.
Wall or ceiling installation.
Size of installation hole is LxH with an installation frame and (L-5)x(H-5) without installation frame.
The grille is connected directly to the duct using either the installation frame or a Halton PRL balancing plenum or Halton BDR plenum.
Halton PRL is not available for all AGC sizes.
Installation frame, IF/AGC Plenum box, BDR Balancing plenum, PRL
The grilles are supplied with clips fastening as standard.
Clips fastening is used with installation frame (IF) or balancing plenums (Halton PRL and Halton BDR).
Concealed screw fastening is possible when the grille is installed with an installation frame (IF) or with a Halton BDR plenum box.
In such cases, small holes are factory made in Halton BDR for each concealed screw.
Concealed screw fastening is not possible with Halton PRL plenum.
For ceiling installation concealed screw fastening is recommended.
For ceiling installation the use of visible screw fastening is recommended. Bevel headed screws (4.2×25) are supplied with the grille.
In order to enable adjustment and measurement of airflow rate, it is recommended that you connect the diffuser to the Halton BDR or Halton PRL balancing plenum equipped with the MEM module.
The airflow rate can only be adjusted and measured when the grille is connected to the Halton BDR or Halton PRL plenum.
Define the exhaust airflow rate by measuring the pressure difference between the measurement tap on the Halton PRL or Halton BDR balancing 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.
The k-factor for installations with different safety distances
(D = duct diameter)
Halton BDR
D | >6xD | min 3xD |
100 | 6 | 7 |
125 | 10 | 12 |
160 | 19 | 22 |
200 | 28 | 32 |
250 | 49 | 51 |
315 | 77 | 83 |
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.
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.
Push the grille back into place until the springs lock (or by tightening the concealed screws).
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 into place until the module meets the stopper.
Push the grille back into place so that the springs lock.
The Halton AGC exhaust grille has a large free area. Pressure loss will remain minimal, even with high exhaust rates.
The grille has a 25 mm wide flat frame and an egg crate core, anodised or painted with a white (RAL 9003) colour.
The joints of the outer frame are practically invisible.
The grille is connected to the ductwork using a plenum with mineral wool as sound attenuation material.
The grille is connected to the ductwork using the balancing plenum, comprising sound attenuation material made from polyester fibre with a washable surface.
The plenum will comprise an airflow measurement and adjustment unit.
The exhaust grille is openable in order to provide access to the measurement and adjustment module in the balancing plenum.
S = Model
N Standard
S Without frame (AGC/SC)
L = Length (mm)
200, +1,.., 1200
H = Height (mm)
100, +1,.., 670
FS = Fastening
CL Clips
SF Screw
CC Concealed screw
NA Not assigned
ME = Mesh
A Standard mesh (13x13x13 mm)
B Special mesh (15x15x13 mm)
C Special mesh 45° (13x13x13 mm)
FI = Finishing
AN Anodised
PN Painted
CO = Colour
SW Signal white (RAL 9003)
X Special colour (RAL xxxx)
N No painting
ZT = Tailored product
N No
Y Yes (ETO)
BDR Balancing plenum
PRL Balancing plenum
IF Installation frame (Grilles)
OD Opposed blade damper (Grilles)
AGC/N-200-100, FS=CL,ME=A,FI=AN,CO=N, ZT=N