Halton AGC – Exhaust grille

Overview

• Large free area, high airflow rates with minimal pressure drop
• Detachable grille enables cleaning of the grille and ductwork
• Spring clip fastening

Product models and accessories

• Model without frame
• Airflow adjustment damper
• Plenum options with measurement and adjustment functions
• Installation frame
• Plenum insulation

Dimensions

With flow control damper OD total depth is 32 mm + 45 mm.
The free area of the AGC grille is 92 %.

Halton AGC/S model

Nominal sizes are 595 x 595 mm and 1195 x 1195 mm.

Special dimensions

In addition to these standard sizes, other dimensions can be specially ordered. The maximum size is 1200×670 mm (LxH).

Material

The bevel angles of the outer frame have been welded so that the joints are almost invisible.

Accessories

Mesh alternatives

Both models Halton AGC and Halton AGC/S can be equipped with following alternative mesh types.

Function

Air is exhausted from the space through the egg crate core of the grille.

Wall or ceiling installation.

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

Fastening options

Clips, as standard (CL)

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 (CC)

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.

Visible screw (SF)

For ceiling installation the use of visible screw fastening is recommended. Bevel headed screws (4.2×25) are supplied with the grille.

Adjustment

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

Airflow adjustment damper (OD/AGC)

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.
Push the grille back into place until the springs lock (or by tightening the concealed screws).

Option:
Installation 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 into place until the module meets the stopper.
Push the grille back into place so that the springs lock.

Specification

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.

Option 1

The grille is connected to the ductwork using a plenum with mineral wool as sound attenuation material.

Option 2

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.

Order code

AGC/S-L-H; FS-ME-FI-CO-ZT

S = Model
N    Standard
S    Without frame (AGC/SC)

L = Length (mm)
200, +1,.., 1200

H = Height (mm)
100, +1,.., 670

Other options and accessories

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)

Sub products

BDR      Balancing plenum
PRL       Balancing plenum
IF          Installation frame (Grilles)
OD        Opposed blade damper (Grilles)

Code example

AGC/N-200-100, FS=CL,ME=A,FI=AN,CO=N, ZT=N