7
Install the plastic vent assembly
Important note:
The vent pipe must be installed vertically
with the air-gap at the top. The vent pipe conforms to the
building regulations and on no account should be shortened
or modified in any way.
1. Choose a convenient position to fit the saddle clamp (17)
preferably on a vertical section (Option 1) of the waste
pipe, or alternatively on a horizontal section (Option 2).
When installing the saddle clamp horizontally the elbow
(19) is not required. Be careful to allow sufficient
clearance for the height of the vent assembly and enough
room to operate the pipe cutter (20).
2. Separate the two halves of the saddle clamp by
unscrewing and removing the four nuts and bolts. Discard
the two black rubber inserts for 41mm waste pipe. Leave
them in place for 32mm pipe.
3. Place the saddle clamp in position on the chosen section
of waste pipe and re-assemble the clamp. Tighten the
nuts and bolts securely to make a watertight seal.
4. Insert the pipe cutter (20) into the saddle clamp and cut
a hole in the waste pipe by rotating it to the right until it
breaks through. (see diagram.)
5. Screw the vent assembly (16) into the saddle clamp. When
the saddle clamp is installed on a vertical section of the
waste pipe screw the elbow in first and use the lock nut to
secure the air gap assembly in the vertical position.
6. Take the vent hose (18) (black indicator) and connect
the G½” nut end onto the corresponding G½” male
thread at the top of the vent assembly. Use the attached
NutRunna® (11) to tighten the nut firmly, sufficient to
make a water- tight seal. Do not overtighten.
365mm
Lock Nut
Option 1
Option 2
Lock Nut
365mm