2
Introduction
Sterling 12V is primarily intended for installation directly onto a wall at high level in
bathrooms and other high humidity areas. The maximum recommended installation height
is 2.1 metres to the underside of the heater. There is no clearance required above or to
the side of the heater.
Sterling is designed for use on standard two piped pumped central heating systems. Pipes
are 15mm and either pipe may be used as flow or return. This product is not suitable for
one-pipe systems.
The transformer
must
be located outside the bathroom or high humidity area. The 450mm
lead attached to the transformer
must
be connected to the fused spur (mains supply).
You will need to provide a cable (twin core 0.5mm
2
for lengths up to 6 metres, 1.0mm
2
for
longer lengths) to connect the terminals on the product to the transformer. The two
single-pin male connectors are provided to connect this cable to the transformer terminals.
We recommend the use of full flow isolating valves. The valves should be accessible after
completion of the installation.
We also recommend the fitting of an air vent at the highest point on either the flow or
return pipe to remove any air trapped within the system.
Sterling is classified as a fixed appliance and electrical connection should be via a 3A-fused
spur. The fused spur
must
be located outside the bathroom or high humidity area but
should be accessible after completion of the installation. This appliance must
not
be
earthed.
To avoid the possibility of vibration the Sterling must be fitted on a flat even surface.
To conform to Building Regulations Part L (Part J in Scotland) this Sterling model can be
controlled by a remote wall mounted room thermostat (Smith’s Environmental Products
Part No. RT002). For further details please contact us on 01245 324560.
Please note the guarantee may be invalidated if this product is not installed and used in
accordance with these instructions.
