Concentric thermostatic mixer valve
1
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.
Remove the plaster and brickwork to the required
depth and chase out any additional areas of the
wall to give access to the pipework to and from
the valve plus any outlet fittings. Note that the
valve body requires a deeper recess than the inlet
and outlet fittings.
Note: The outlet pipework must end in a suitable
female thread parallel 15mm x ½” BSP fitting
(not supplied).
Offer the valve body up to the wall and mark the
fixing holes. Remove the valve, drill and plug the
wall. Route the pipework to valve body position.
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
(fig.18)
.
When installing into a stud partition or other
hollow wall structures, the installer will need
to consider fabricating rear supports or other
options. Such options are beyond the scope of
this guide.
Mark the route of the incoming and outgoing
pipework.
Take out the plasterboard (use the cover plate or
tiling shroud as a template). 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.
Installation in a panel or cubicle
When installing into a panel or cubicle structure
the installer will need to consider fabricating
rear supports or other options. Such options are
beyond the scope of this guide.
Typically, there should be at least 65mm space
from the surface of the panel to the rear of the
valve body.
ImPoRtant: access to the rear of the
valve must be available.
Fig.18
Fig.19
