8
If the product is operated outside of the stated
pressure parameters it may not be possible to
achieve optimum performance from the product
throughout the year.
WARNING
`
The product must be earthed
`
IMPORTANT - INSTALLATION
TO BE CARRIED OUT BY A
COMPETENT INSTALLER
Electrical requirements
The installation supply cable and circuit protection
must conform to BS 7671.
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.
The product must only be connected to a 230-240V
ac supply.
The earthing and protective conductor arrangement
within the property, in particular the supplementary
bonding in the room containing the product, must
comply with BS 7671.
Ensure that the supply cable and fuse are sufficient
for the rated input of your unit. Please refer to the
rating label within the product.
A minimum heat resistance cable size of 1.5mm²
should be used.
The product can be connected in two different ways:
`
Via a fused and switched connection unit taken
as a spur from a 13amp ring main.
`
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.
5. Before installation
5.1 Installation regulations
WARNING
Installation of the product must be
carried out by a qualified engineer in
accordance with prevailing and national
regulations as listed below.
`
Building Regulations
`
The Building Standards
(Scotland)
`
The Building Regulations
(Northern Ireland)
`
I.E.E Electrical Regs
`
UK Water Regulations
5.2 Installation requirements
Pipe entry
Plumbing entry can be from the rear (preferred) or
from the bottom. The backplate has a cut out position
to suit 15mm pipe. When opting for bottom entry
make the cut out before fitting the backplate to the
wall - see figure 5 below.
Make cut-out
using sharp knife
Figure 5 – Plumbing cut-out
Water requirements
The installation must be in accordance with Water
Regulations. To ensure activation of the heating
elements, the handwash must be connected to a
mains water supply with a minimum running pressure
of 0.1 MPa (1 bar) and a maximum static pressure
of 0.7 MPa (7 bar). If static pressure exceeds 0.7
MPa (7 bar) fit a pressure reducing valve to avoid
damaging the product. If in doubt, the pressure
should be checked taking account of other services
from the same water supply which could cause
the pressure to fall below the minimum. The water
supply can also be taken from a cold water storage
cistern provided there is a minimum head of 10m
above the product.
