30
BOILER INSTALLATION SEQUENCE
Electrical installation
General requirements
All electrical work shall be carried out
by a competent person and shall
comply with BS7671 (IEE Regulations).
The boiler is supplied for connection
to 230 V, ~ 50 Hz supply fused at 3 A
rating.
Connection to the mains supply shall
be made via a fused 3 pin plug to an
unswitched shuttered socket, both
complying to the requirements of
BS1363.
(Alternatively, connection may be
made via a 3 A fused double pole
isolator having a contact separation
of at least 3 mm in all poles and
supplying the boiler and controls
only).
The point of connection to the mains
supply must allow complete electrical
isolation of the boiler and its ancillary
controls. It should be readily
accessible and adjacent to the boiler.
A 3 core flexible cord according to
BS6500 tables 6, 8 or 16 (3 x 0.75
to 3 x 1.5 mm
2
) should be used.
Warning: This appliance must be
earthed.
Important: Ensure that all cords pass
through the cable clamps in the rear
of the control box and are securely
fixed. Ensure that the power supply is
connected such that the current
carrying conductors become taut
before the earth conductor should the
supply cord slip from the cable
clamp.
Note: DO NOT use boiler terminal
connections 7-8-9.
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