7
4.3 If the handwash is operated outside of the stated pressure
parameters, it may not be possible to achieve optimum performance
from the appliance throughout the year.
ELECTRICAL REQUIREMENTS
WARNING
4.4 The appliance must be earthed
IMPORTANT - INSTALLATION TO BE DONE BY A COMPETENT
INSTALLER
4.5 The installation supply cable and circuit protection must conform to
BS 7671.
4.6 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.
4.7 The handwash must only be connected to a 230-240V ac supply.
4.8 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.
4.9 Ensure that the supply cable and fuse are sufficient for the rated input
of your appliance. Please refer to the rating label on the appliance.
4.10
For a 3.1kW appliance:
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 appliance taken as a spur
from a 13amp ring main.
2. As a separate circuit taken directly from a spare way in a
consumer unit.
re
d
re
d
Cut
Out
red
bl
ac
k
red
N
L
gr
ee
n/
ye
llo
w
Inner
container
Pressure
switch
Terminal
block
3.1kW
Figure 2 Wiring diagram
bl
ac
k
Neon
black
black
red
red
Solenoid
valve
PCB Infra-red
L
L
N
N
{
{
Solenoid
PCB
