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6 INSTALLATION
6.1 Cylinder Location
The unit must be located in a frost-free, indoor location.
The unit can be fitted into a conventional airing cupboard and does not require any additional
ventilation. To maximise efficiency of the installation, surfaces of potential heat loss must be
insulated. Valves and manifolds can be insulated using manufacturer approved covers.
When selecting a location, consideration should be given to the routing of all discharge pipework
and to the relative location of the heat sources (solar panels, heat pumps or boilers) as well as to
the domestic hot water outlets – pipe runs should be kept as short as possible for maximum
efficiency of the installation.
Ensure the cylinder is positioned such that future servicing and part replacement if necessary is
possible. The installation must not prevent items such as thermostats, immersion heaters,
temperature & pressure relief valve, inlet group, pumps, heat exchangers or expansion vessel
from being removed for service or replacement.
6.2 Hot & Cold Water Connections
The factory-fitted temperature and pressure relief valve must NOT be removed from the
cylinder or tampered with in any way. The valve is pre-calibrated to operate at 7 bar or
90°C and any attempt to adjust or remove it will invalidate the guarantee and will adversely
affect the safety of the appliance.
All connections to the cylinder must be made using compression fittings. Mains supply pipework
must be a minimum of 22mm diameter to provide adequate flow rate.
Inlet group
The supplied inlet group must be fitted to the cold water mains before connection to the cold inlet
of the cylinder. When connecting the inlet group, ensure the arrow on the body is pointing in the
direction of flow (towards the cylinder).
The maximum supply pressure to the inlet group is 16 bar. If the mains supply pressure is likely
to exceed 16 bar at any time, an additional suitable pressure reducing valve (not supplied) will
be required.
A balanced cold connection is provided on the inlet group, from which the cold water supply to
the rest of the property can be connected in order to provide balanced supply pressure throughout
the property. If this facility is not required, the connection should be capped / stop-ended.
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