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Armitage Shanks Markwik 21 - Page 5

Armitage Shanks Markwik 21
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5
5 INSTALLATION: FIXATION
Figure 3
Proximity mixer installation panel mounting
(RH inlet cut away for clarity)
200 mm
130 mm
Ø
30 nominal
Ø
35 nominal
backnut
slip
washer
slip washer
wall panel
seal
seal
reversible
backnut
proximity sensor
slip
washer
reversible
backnut
backnut
slip
washer
Figure 4
Timed Flow mixer
installation - panel mounting
200 mm
85 mm
min
left or
right
Ø
30
nominal
Ø
35 nominal
wall
plate
shroud
seal
seal
timed flow
sensor
wall
panel
These mixers are designed to be
panel mounted on a duct wall of
maximum panel thickness 27mm.
For thicker panels the rear of the
panel will require counter bores of
62mm or greater around the xa-
tion holes.
Cut two holes of 30mm diameter,
horizontally aligned to 200mm
centres in the wall.(See figure 1
for height positioning of the tting
body over a “waste appliance”)
The sensor will require a hole of
35mm positioned as indicated in
either g1 or g2.
Loosen the chrome shrouds and
insert the tting as shown above
with the wall plates and seals to
the front of the wall.
Put on the slip washers and do up
the backnuts to a torque of 25 Nm
.
Screw the shrouds onto the
wall plates.
Check that all joints are securely tightened, test for leaks.

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