12
1306246-W2-D
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
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
checkvalve 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.
Refer to section:
‘Important Safety Information’
first.
1.
In a domestic installation, the rating of the electricity supplier’s fuse and the
consumer unit must be adequate for the additional demand. All Mira Advance
electric showers are high power appliances. Voltage drop due to local heavy
demand will reduce the shower’s performance.
2.
The appliance must be earthed by connecting the supply-cable earth conductor
to the earth terminal. Any supplementary bonding and supply cable size must
conform to BS 7671.
3.
As a guide only, and in accordance with BS 7671 we recommend close
circuit protection:
i.e.
8.7 kW = 40 Amp
9.8 kW = 45 Amp
Electrical
Содержание Mira Advance 8.7
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