Mira Elite ST Installation Manual page 12

2.2 Electrical (checklist in detail)
2.2.1 In a domestic installation, the rating of the electricity supplier's fuse and the
consumer unit must be adequate for the additional demand. The Mira Elite ST
is a high power unit, therefore it is essential to contact your electricity supplier
to ensure that the supply is adequate for the product. Voltage drop due to local
heavy demand will reduce the shower's performance.
2.2.2 The Mira Elite ST must be earthed by connecting the supply-cable earth
conductor to the earth terminal.
Supplementary bonding: Within the bathroom or shower room, all accessible
conductive parts of electrical equipment and extraneous conductive parts (metal
parts) that are likely to introduce earth potential, must be electrically bonded to
earth using a minimum cable size of 4.0 mm
protected, (2.5 mm
2.2.3 Supply cable - refer to: 'Electrical Checklist'.
2.2.4 As a guide only, and in accordance with BS 7671 we recommend close circuit
protection:
i.e. 9.8 kW @ 240 V = 45 Amp (9.0 kW @ 230 V = 40 Amp).
10.8 kW @ 240 V / 45 Amps (9.9 kW @ 230 V / 45 Amps).
A 30m Residual Current Device (RCD) MUST be included in the electrical
circuit. This may be part of the consumer unit or a separate unit.
A separate, permanently connected supply must be taken from the consumer
unit to the appliance through a double-pole switch, which has at least 3 mm
contact separation. The switch can be a ceiling mounted pullcord type within
the shower room or a wall mounted switch fitted in the applicable zone area.
2.2.5 DO NOT twist the individual cable cores of either the live or neutral conductors,
as this will prevent them from entering the terminal block.
2.2.6 DO NOT exert strain on the terminal block. Ensure that the electrical connections
are tightly screwed down.
2.2.7 DO NOT turn on the electrical supply until the plumbing has been completed.
if mechanically protected).
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if the cable is not mechanically
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