Airflow 100mm Wallvent User manual

80001286 –Issue 1 01/23

Page 1 of 13

Airflow 100mm & 125mm

Wallvent Installation Guide

80001286 –Issue 1 01/23

Page 2 of 13

Contents

100mm Wallvent Fixing External Grille.......................................5

100mm Wallvent Fixing Internal Grille ........................................8

125mm Wallvent Fixing External Grille.......................................9

125mm Wallvent Fixing Internal Grille ......................................11

80001286 –Issue 1 01/23

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1. To minimise cracking, drill a pilot hole and then core

drill from both sides into the cavity.

NOTE: Horizontal ducting, including ducting in walls should

be arranged to slope slightly downwards away from the

internal grille to prevent backflow of any moisture into the

property.

Use a 102mm dia. Core drill for Airflow 100mm Wallvent.

Use a 127mm dia. Core drill for Airflow 125mm Wallvent.

1. Measure the wall thickness and cut the duct to length.

2. The tube should be flush to the inside and outside

surfaces.

Fig.1

80001286 –Issue 1 01/23

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NOTE: Airflow 125mm Wallvent duct comes in three detachable

pieces.

3. To ensure the integrity of the wall, each end of the cut duct

between the duct and the wall should be sealed.

The internal and external grilles can be fitted using either

screws or sealant/mastic. However, the following steps can

be followed for guidance purposes:

Fig.2 - For Airflow 100mm Wallvent only.

80001286 –Issue 1 01/23

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100mm Wallvent Fixing External Grille

1. The external grille can be fixed to the brickwork using

screws in the preformed holes located on the reverse

side of the grille. (Fittings not supplied.)

2. Carefully unclip the weather hood from the grille.

Clasps are located on the reverse of the grille below

the spigot.

3. Next, unclip the louvre panel from the grille backplate

by using a flat head screwdriver in the gap shown

below.

Fig.3

80001286 –Issue 1 01/23

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4. The preformed holes for fixing the external grille to the

brick will be located at each corner of the backplate.

Fig.4

80001286 –Issue 1 01/23

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5. Apply a bead of sealant around the spigot of the

external grille. (Sealant not supplied.)

6. Insert the external grille inside the duct from the

outside.

7. Before the sealant sets, ensure the grille is flush and

level before screw fixing.

8. Once fixed, re-attach the louvre panel and weather

hood ensuring they are securely in place.

Fig.5

80001286 –Issue 1 01/23

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100mm Wallvent Fixing Internal Grille

1. Unclip the louvre panel from the grille backplate by

using a flat head screwdriver in the gap shown in Fig.3.

2. The preformed holes for fixing the internal grille to the

internal wall will be located at each corner of the

backplate –refer to Fig.4.

3. To fix the internal grille, apply a bead of sealant around

the spigot.

4. Insert the internal grille backplate into the duct.

5. Before the sealant sets, ensure the grille is flush and

level before screw fixing.

Fig.6

80001286 –Issue 1 01/23

Page 9 of 13

125mm Wallvent Fixing External Grille

1. The external grille can be fixed to the external

brickwork using the preformed holes located on the

reverse side of the external grille in each corner.

Fittings not supplied.

2. Punch-through the holes on the reverse side of the

external grille using a suitable tool, avoiding damage to

the plastic panel.

Fig.8

80001286 –Issue 1 01/23

Page 10 of 13

3. Apply a bead of sealant around the spigot of the

external grille. (Sealant not supplied.)

4. Insert the external grille to the duct from the outside.

5. Before the sealant sets, secure the grille to the wall using

the punched holes in each corner, ensuring the grille is

flush and level.

Fig.9

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