Mira event Installation, Operation, Maintenance Manual page 12

3.15 If the appliance is installed on a common supply which feeds an
adjacent
tap, the maximum static inlet pressure for the appliance will, under
certain circumstances be exceeded; the action of closing the tap can
cause a pulse in the supply pressure which will result in damage to the
appliance. This can be resolved by the installation of a suitably sized
mini expansion vessel, sited as close as possible to the tap and
pressurised to 0.5 bar.
3.16 Do not fit the appliance to the wall and tile up to the case. The
appliance must be fitted on to the finished flat and even wall surface.
This is important as difficulty may be encountered when fitting the
cover and subsequent operation of the unit could be impaired. (Small
pillars moulded on to the back of the case allow air circulation).
Warning!
This product does not incorporate any form of thermostatic control. If
there is a cold water supply failure, hot water at a similar temperature
to the hot tap will be available at the shower fitting.
To prevent excessive showering temperatures it is important that the
procedure contained in the section "Commissioning: Adjustable
Maximum Temperature Setting" is followed.
12