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.
10A. FITTING THE RISER RAIL (ROUND STYLE)
1. Having established the position of the riser rail so
that the showerhead can be comfortably reached
whilst using the shower, make sure any cables and
pipework are not behind the screw holes (Fig 9).
2. Remove end brakcet cover, to explore fitting point
from upper of lower brackets (Fig 10).
3. Drill and plug the wall and fix the lower bracket
without the rail locater notch. Fit rail to lower
bracket. Place the remaining bracket on top of
the rail making sure the slot in the rail is located
into the bracket notch. Ensure the hole position is
vertically aligned and mark the wall. Remove the
rail then drill and plug the wall.
4. With the handset height adjuster on the left hand
side, fit the hose retaining ring onto the bottom of
the rail assembly (Fig 11 & 12).
5. Replace the rail assembly through the lower
bracket. Refit the top bracket ensure the slot or
indent in the rial is located into the bracket notch
and fix to the wall.
9
10
11
12
