Mira Advance Standard J97I Installation And User Manual page 10

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1.2 Do not use sealing compounds on any pipe fittings or joints.
1.3 To avoid damage to the case when soldered fittings are used, pre-solder the
pipework and fittings before connecting them to the inlet connector assembly.
1.4 Avoid layouts where the shower hose will be sharply kinked. This may reduce
the life of the hose.
1.5 Supply pipework MUST be flushed to clear debris BEFORE connecting the
appliance. Debris will reduce the performance of the shower.
Avoid running the pipework through excessively hot or cold areas such as hot
loft spaces, airing cupboards, or in close proximity to hot water pipes. If this
cannot be avoided, we would recommend insulating the pipes.
1.6 The shower must be fitted onto a tiled or sealed finished surface, i.e. on top of
the tiles. DO NOT tile up to the sides of the shower or use a sealant around the
case. Failure to do this may cause appliance failure. To ensure the case and
other components are not put under strain during installation always provide
mechanical support when making plumbing connections. Upon completion of
the installation ensure connections and back case are not under any stress
due to misaligned pipework or electrical cables.
1.7 We recommend that a non-restrictive (free flowing) isolating valve is fitted in
the cold water supply pipe from the cistern to the shower, to allow maintenance
of the shower.
1.8 When installed in very hard water areas (above 200 ppm temporary hardness)
your installer may advise the installation of a water treatment device, to reduce
the effects of limescale formation. Any malfunction due to limescale is not
covered by the manufacturer's guarantee. Your local water company will be
able to advise the hardness of water in your area.
1.9 To prevent the possibility of back siphonage, the handset must be prevented
from reaching within 25 mm of the spillover level of any bath, shower tray or
washbasin. The supplied hose retaining ring should enable this to be achieved
for the majority of shower installations. However, there will be occasions when
the hose retaining ring will not provide a suitable solution. In these instances,
a double checkvalve must be fitted to the outlet. Double checkvalves fitted in
the shower's inlet supply can cause a pressure build-up, which could exceed
the maximum static inlet pressure for the appliance. The handset must be
prevented from reaching within 30 mm of the spillover level of any WC, bidet
or other basin that is classified higher than fluid category 3.
1.10 Rear entry plumbing is accommodated without the need to recess the 15 mm
inlet compression connector.
shower from the rear through a hole in the wall provision must be made to
prevent water ingress back into the wall
1.11 The shower is fitted with a pump motor, and some mechanical noise can be
expected in addition to the noise generated by the spray from the handset. The
type of wall surface will affect the perceived sound levels. Stud partition and
panel walls have a tendency to resonate, whilst solid walls provide the quietest
If pipe work and/or electrical cables enter the
structure.
10

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