10
1493953-W2-A
Zone of
Backflow Risk
30 mm
Minimum
Toilet or Bidet
FC5
Hand Basin
FC3
Bath or Shower
Tray FC3
Electric
Shower
25 mm
Minimum
25 mm Minimum
17. A water treatment device should be installed where the water hardness may
exceed 200 ppm. Malfunctions caused by excessive limescale formation are
not covered by this shower’s guarantee (see back page for details).
18. The installation must not cause the hose to be sharply kinked during normal
use.
19.
DO NOT
perform the electrical installation until the plumbing has been completed
and checked for leaks.
Hose retaining ring fitted and shower fittings fixed at a suitable height
preventing dirty water backflow
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 check valve must be fitted, this will increase the required
supply pressure typically by 10kPa (0.1 bar). Double check valves fitted in
the inlet supply to the appliance cause a pressure build up, which affect
the maximum static inlet pressure for the appliance and must not be fitted.
For Fluid category 5 double check valves are not suitable.
