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Details on flushing procedure are given in the
section "Initial filling of the system" to page 45
of this manual.
D.h.w. circuit (scale protection)
In areas where the water is 'hard' (i.e. more
than 200 ppm total hardness as defined by BS
7593: 1993 Table 2) it is recommended that a
proprietary scale-reducing device is fitted into
the boiler cold supply, within the requirements
of the local water company.
5.11 Electrical supply
Warning, this appliance must be earthed
External wiring to the appliance must be car-
ried out by a competent person and be in ac-
cordance with the current I.E.E. Regulations
and any local regulations which apply.
Reference should be made to the current
ETCI rules for electrical installations.
For Ireland (IE), refer to I.S.813.2002.
The boiler is supplied for connection to a 230
V~ 50 Hz supply. The supply must be fused
at 3A.
The method of connection to the electricity
supply must facilitate complete electrical iso-
lation of the appliance by the use of a fused
double pole isolator having a contact separa-
tion of at least 3 mm between poles or alterna-
tively, by the use of a 3A fused three pin plug
and unswitched shuttered socket outlet both
complying with BS 1363.
The point of connection to the electricity sup-
ply must be readily accessible and adjacent
to the appliance except were the appliance is
installed in a bathroom this must then be sited
outside the bathroom.
GENERAL REQUIREMENTS
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