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4 ELECTRICAL INSTALLATION / EARTHING
4.11
Regulations:
The electrical installation must be carried out in
accordance with the current national electrical regulations and installed
by a qualified person.
4.12
Safety:
In the interests of electrical safety a 30 mA residual current
device
(R.C.D. not supplied)
should be installed in the supply circuit.
This may be part of a consumer unit or a separate unit.
4.13 Before starting work on the electrical supply ensure power supply is
isolated.
4.14
DO NOT
allow the supply cord to contact hot surfaces, including the
motor shell, pump body or pipework. The cord should be safely routed
and secured by cable clips.
4.15
Adjacent pipes:
Adjacent suction and delivery pipes should be fitted with
earthing clamps to BS 951 in accordance with current regulations (Fig. 10).
4.16
Earthing:
This appliance must be earthed via the supply cord, which must be
correctly connected to the earth point located in the terminal box.
4.17
Pipework:
Copper or metallic pipework must have supplementary earth bonding
where the continuity has been broken by flexible hoses or plastic components.
4.18
Additional earthing:
Certain installations may require additional earthing
arrangements such as equipotential bonding. Reference should be made to the
relevant regulations concerning this subject to ensure compliance.
4.19
Connections:
The pump must be permanently connected to the fixed wiring of
the mains supply using the factory fitted supply cord, via a double pole switched
fused spur off the ring main and
NOT
connected to the boiler or the immersion
heater
circuits.
4.20
Wiring of connection unit:
WARNING: This appliance must be earthed.
The wires in the mains lead are coloured in accordance with the following code:
Green and Yellow: Earth
Blue: Neutral
Brown: Live
As the colours of the wires in the mains lead of this appliance may not correspond
with the coloured markings identifying the terminals in your connection unit
proceed as follows:
The wire which is coloured green and yellow must be connected to the terminal
in the connection unit which is marked with the letter E or by the earth symbol:
or coloured green or green and yellow.
Fig. 10
Diagram of
earth continuity
connections
