7
5.3 Choice of location
`
National Wiring rules may contain restrictions
concerning the installation of these products in
bathrooms.
`
The product should be vertically wall mounted
using the wall bracket supplied. The water
connections must always be to the top of the
product.
`
Enough space should be left at the top above
the product for pipe connections and access to
the Temperature/Pressure Relief Valve. Refer to
figure 1 and the Dimensions Table to determine
a suitable position for the product.
WARNING
Ensure that the wall can support the full
weight of the product (see Technical
specifications) and that there are no
hidden services (electricity, gas, or water)
below the surface of the wall.
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
Water supply
In an unvented system the pressure and flowrate is
directly related to the incoming water supply. For this
reason it is recommended that the maximum water
demand is assessed and the water supply checked
to ensure this demand can be satisfactorily met.
`
We suggest the minimum supply requirements
should be 0.08MPa (0.8 bar) pressure.
`
A 15mm cold water supply is recommended.
`
The higher the available pressure and flow rate
the better the system performance.
`
The water supply must be of wholesome water
quality (Fluid Category 1 as defined by the Water
Supply Regulations 1999).
Outlet/terminal fittings (taps,etc.)
`
The product can be used with most types of
terminal fittings.
`
All fittings, pipework and connections must have
a rated pressure of at least 8 bar at 80°C.
