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11. The water supplies to this product should be isolated if the product is not to be
used for a long period of time. If the product or pipework is at risk of freezing
during this period they should also be drained of water.
12. The position of the shower and shower fittings must provide a minimum air
gap of 25 m m between the showerhead and the spill over level of any bath,
shower tray or basin. There must be a minimum distance of 30 mm between
the showerhead and the spill over lever of any toilet, bidet or other appliance
with a Fluid Category 5 backflow risk.
Note : There will be occasions when the hose retaining ring will not provide a suitable
solution for Fluid Category 3 installations. In these instances an outlet double
checkvalve must be fitted, this will increase the required supply pressure typically
by 10 k Pa (0.1 bar). Double checkvalves fitted in the inlet supply to the appliance
cause a pressure build up, which affects the maximum static inlet pressure for the
appliance and must not be fitted. For Fluid Category 5, double checkvalves are
not suitable.
1320703-W2-B
Shower
Unit
30 mm
Minimum
25 mm Minimum
Bath or Shower
Toilet or Bidet
FC5
Zone of
Backflow
Risk
25 mm
Minimum
Hand Basin
Tray FC3
10
FC3
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