MX Atmos Zone, Fitting Instructions Manual

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8. FITTING THE MIXER VALVE (CONT.)
7. 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.
Make sure the mixer valve outlet is pointing down
and the hot feed is onto the left side marked with a
red indicator (Fig 5).
NOTE: It is possible to move the outlet to th top of the
valve by reversing the plug and threaded outlet.
8. Replace the locking screws to hold the mixer valve
on the wall plate.
9. A pipe must be fitted from the outlet of the mixer
valve to the location of where you wish to position
the outlet. Depending on the option this pipe must
have a ½” female connection attached into which
the outlet can be fitted.
NOTE: Once the mixer valve and oultlet are fitted,
prior to fitting the trim plate 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.
10. The trim plate is fitted by pushing it onto the mixer
valve until flush with the tiles (Fig 6 ).
NOTE: Before assembling the valve controls identify
all the parts and check that red markeings on the
thermostatic catridge are inline.
Test water temperature by turning the flow control
lever clockwise. Allow the water to stabilise, this
should be at approximately 38˚C. Use a themometer
to accurately measure this temperature.
9. PRESSURE BALANCING (IF SUPPLIED)
The thermostatic mixer valve is designed to work best when the feed pressures of both hot
and cold water are the same. If there is a difference in pressure it will cause the flow of water
through the valve to pulse rather than being a steady flow. This pulsing can be reduced by
putting one of the metal disks with holes into the higher pressure feed to the valve. This
restricts the flow and reduces the pulsing.
To maximise the volume of water through the valve the disk with the most holes should be
tried first. If this does not work the others should be tried until a satisfactory result
is obtained.
If the water pressures to hot and cold are the same these disks do not need to be used.
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