Specifications
Multipoint
7
7
3.4 The appliance must be earthed
IMPORTANT - INSTALLATION TO BE DONE BY A COMPETENT
INSTALLER
3.5 The installation supply cable and circuit protection must conform to
BS 7671.
3.6 Before making any sort of electrical connection, ensure that no terminal
within the circuit is live. If in any doubt SWITCH OFF the whole installation at
the consumer unit.
3.7 The handwash must only be connected to a 230-240V ac supply.
3.8 The earthing and protective conductor arrangement within the property, in
particular the supplementary bonding in the room containing the handwash,
must comply with BS 7671.
3.9 Ensure that the supply cable and fuse are sufcient for the rated input of your
appliance. Please refer to the rating label within the appliance.
3.10 For a 3.1kW unit:
A minimum heat resistant cable size of 1.5mm² should be used. The
handwash can be connected in two different ways.
1. Via a fused and switched connection unit taken as a spur
from a 13amp ring main.
2. As a separate circuit taken directly from a spare way in a consumer unit.
In each case a double pole isolating switch having a contact
separation of at least 3mm in each pole, and a minimum rating of
13amp must be incorporated in the wiring of the appliance.
Figure 3 Schematic of typicalelectrical layout
Shower unit
(use rear entry when it is
possible)
800 or 100A main switch
Meter
Meter ‘tails’
Consumer unit
RCD (can be part of the
consumer unit)
Double pole isolating switch:
pull cord or wall mounted in accordance
with IEE regulations