Dual control thermostatic mixer
8
INSTALLATION
a) General conditions
Note: The outlet of the shower MUST NOT
be connected to anything other than the
showerhead supplied.
DO NOT use jointing compounds on any
pipe fittings for the installation.
Suitable ½” BSP to 22mm or 15mm
compression fittings (not supplied) MUST be
used for connecting to the water supplies.
DO NOT solder fittings near the mixer
unit as heat can transfer along pipework
and damage the seals and thermostatic
components.
When connecting the pipework, avoid using
tight 90° elbows. Swept or formed bends will
provide the best performance.
The hot water inlet is stamped HOT and the
cold water inlet is identified COLD.
½” BSP straight or elbow male thread couplers
must be fitted to the inlet ports for either rising,
rear or falling hot and cold water supplies.
A ½” BSP straight coupler needs to be fitted to
the valve outlet.
Note: These couplers are NOT supplied.
Screw the couplers into the inlets and the
outlet of the valve. THE COUPLERS MUST BE
TIGHTENED AGAINST THE VALVE BODY. The
fittings will require PTFE tape or other means of
sealing.
Before starting the installation, make sure the
available depth of the recess or cavity is between
65 − 80mm as measured from the finished
surface.
The allowance for varying thickness of tiles up
to 10mm is accommodated to a limited degree
by the tolerance between the control knob and
trim ring.
b) Installation in a solid wall
Decide on the shower position and determine
whether the hot and cold water supplies will
enter the shower from the top (falling) or
bottom (rising) or rear.
The building depth should be at least 65mm
deep from the finished wall surface.
As a guide for the size of hole, it should be large
enough to accept the valve complete with the
inlet and outlet fittings and also allow access for
connection to the pipework (fig.9).
Remove the plaster and brickwork to the
required depth and chase out any additional
areas of the wall to facilitate pipework to and
from the valve. Note that the valve body
requires a deeper recess (about 5mm greater)
than the inlet and outlet fittings.
Offer the valve body up to the wall and mark
the two fixing holes. Remove the valve and drill
and plug the wall. Route the pipework to valve
body position.
Flush out the pipework in accordance
with Water Regulations and Byelaws.
Offer the valve up to the pipework and secure
with screws through the two fixing brackets on
the valve body.
Go to the ‘connecting supply pipes’ section.
c) Installation in a hollow wall
Decide on the shower position and determine
whether the hot and cold water supplies will
enter the shower from the top (falling) or
bottom (rising) or rear.
When installing into a stud partition or other
hollow wall structures, the installer will need to
consider building rear supports or other options.
Such options are beyond the scope of this
guide.
The hollow cavity should be at least 65mm deep
from the surface of the wall.
Mark the route of the incoming and outgoing
pipework.
Take out the plasterboard (use the tiling shroud
as a guide). Offer the valve body up to the
fabrication and mark the two fixing holes.
Remove the valve and drill the holes. Route the
pipework to the valve position.
Flush out the pipework in accordance
with Water Regulations and Byelaws.
Offer the valve up to the pipework and secure
with screws through the two fixing brackets on
the valve body.
