Step 1
Open box, gently slide the back-draught shutter out of the pipe
(Shutter versions only). Remove folded push piece.
Step 2
Drill hole 117mm diameter angled downwards 1° - 2° all the way
through wall to outside.
Step 3
Measure hole and note length, if deeper than 25cm, go to step
5. If shorter than 25cm, trim the outer pipe’s ears - go to steps 3
+ 4.
Step 4
Step 5
Step 6
Step 7
1. Push the locking pin down.
2. Push the grille inwards so the head of the locking pin is
under the outer pipe.
3. When it CLICKS! It is in place.
4. Repeat for each one of the three pins.
