MX Atmos Traditional, Fitting Instructions Manual

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10. FITTING THE MIXER VALVE
CONCEALED OPTION
IMPORTANT: Ensure that you have read through section 7. IMPORTANT INSTALLATION INFORMATION before
starting to fit the mixer valve.
1. The fitting of the mixer valve is essentially the same
as described for the exposed option, except that the
mixer valve is fixed to the wall between 50mm and
70mm below the finished surface of the shower. A
circular hole between 150mm and 173mm should
be enough to fit the mixer valve (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.
NOTE: You should measure the distance between the
outlets on the mixer valve you are fitting to determine
the exact distance.
3. Complete the fitting of the pipework and the tiling
leaving the pipework as shown. The wall plate
should be attached firmly between 50mm and
70mm below the finished surface. Remove the back
plate from the mixer valve by removing the retaining
screws. Put the plate in the centre between the feed
pipes and mark the screw positions, check this fits
by holding the mixer valve in position. Drill plug and
screw the back plate to the wall (Fig 2).
4. Position the mixer valve onto the two water feed
pipes and onto the wall bracket. Tighten up the
compression nuts to hold the mixer valve in place
(Fig 3).
NOTE: Make sure the mixer valve outlet is pointing
down and the hot feed is onto the left side marked
with a red indicator.
5. Replace locking screws to hold the mixer valve onto
the wall plate (Fig 4).
6. A pipe must be fitted from the outlet of the mixer
valve to the location of where you wish to position
the wall outlet. This pipe must have a ½” female
connection attached into which the wall outlet can
be fitted.
NOTE: Once the mixer valve and wall outlet are
fitted, prior to fitting the trim plate disc ensure all
connections are watertight. This can be done by
reconnecting the water supplies and checking the
connections when running the shower and when the
shower is off.
7. The trim plate disc is fitted by unscrewing the
handles and pushing it onto the mixer valve until
flush with the tiles (Fig 5).
8. Fit riser rail as described in the riser rail fitting
instructions. Silicone should be used to seal the
outside edge of the trim plate disc to the tiles.
NOTE: Sufficient space should be left behind the trim
plate disc to allow access to the elbows for servicing.
5
4
3
1
2
60mm
Minimum