9
Make sure that the supply pipe is trimmed and bent such that the 15 mm inlet
connector sits (or can be lightly pressed) easily on the back of the clamp bracket
prior to connection with the pump housing.
1.12 To avoid damage to the case when soldered ttings are used, pre-solder
the pipework and fittings before connecting them to the inlet connector
assembly..
1.13 Supply pipework MUST be ushed to clear debris before connecting the
Elite ST.
1.14 A hose retaining ring is supplied to prevent the handset from dropping below
the spillover level of the bath or shower, which could lead to contamination
from back-siphonage (refer to illustration). The supplied hose retaining ring
should meet the great majority of user requirements for shower installations
with exible outlet ttings. However, there will be occasions when the hose
retaining ring will not provide a suitable solution. In these instances an outlet
double checkvalve, e.g. the Mira DCV-H, must be tted. The inclusion of the
Mira DCV-H will increase the required supply pressure typically by 10 kPa
(0.1 bar).
Double checkvalves, tted in the inlet supply to the appliance, cause a
pressure build-up, which could exceed the maximum static inlet pressure for
the appliance.
1.17 Long pipe runs and excessive use of 90° elbows will signicantly reduce the
available head to supply the Elite ST. The pipework table should be completed
to ensure that adequate head is available for any given application.
Spill-over
Level
25 mm Minimum
Soap Dish/Hose
Retaining Ring
1.15 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. Your local water
company will be able to advise the
hardness of water in your area.
1.16 Avoid layouts where the hose will be
sharply kinked. This may reduce the
life of the hose.
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