MX Atmos Traditional, Fitting Instructions Manual

Page: 7 / 16

9. FITTING THE MIXER VALVE
EXPOSED OPTION
IMPORTANT: Ensure that you have read through section 7. IMPORTANT INSTALLATION INFORMATION before
starting to fit the mixer valve.
1. Your thermostatic concentric mixer valve is set up
in the factory so that a shower hose can be fitted.
This means that when the valve is fitted with the hot
water coming in from the left hand side, indicated
by the red spot, the water outlet is on the bottom of
the valve and has a ½” BSP threaded male outlet
(Fig 1).
2. The supply pipework can be plumbed from above
or below but must finish at the suitable connections
which should be at 155mm centers. Connect the
15mm pipework using standard compression nut
and olives supplied with the mixer valve (Fig 2).
NOTE: Make sure the mixer valve is kept in a clean
place to prevent rubbish etc, getting into the openings
while fitting the pipework.
3. Complete the fitting of the pipework and the tiling
leaving the pipework as shown.Leave 155mm
(+ or - 5mm) between centers and about 30mm
out from the finished surface (Fig 3).
4. Remove the back plate from the mixer valve by
removing the retaining grub screws. Put the plate
in the centre between the feed pipes and mark the
screw positions, check this fits by holding the valve
in position. Drill plug and screw the back plate to
the wall (Fig 4).
5. Fit the two flat valve nut covers to the nuts on the
mixer valve and position the mixer valve onto the
two water feed pipes and onto the wall bracket.
To prevent moisture entering the wall put some
silicone on the underside of the mixer valve nut
covers.Carefully tighten up the compression nuts to
hold the mixer valve in place (Fig 5).
6. Make sure the mixer valve outlet is pointing in the
correct direction (with the hot feed on the left side
marked with a red indicator). Replace the locking
grub screws to hold the mixer valve onto the wall
plate.
CAUTION
Check there are no hidden cables or pipes before drilling holes for wall plugs.
Exercise great care when using power tools near water.
The use of a residual current device (RCD) is recommended.
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155mm approx
5
4
3
1
2
Hot Water
1/2” Male