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
2
if the cable is not mechanically protected, (2.5 mm
2
if
mechanically protected).
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).
It is strongly recommended that a 30 mA residual current device (rcd)
is included in the electrical circuit. this may be part of the consumer unit
or a separate unit.
A separate, permanently connected supply is 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 in an adjacent
room.
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.
