28
INSTALLATIONSECTION 3
If higher flow rates are required for the cold water services, a suitable tee fitting should
be fitted to the pipework, upstream of item C1.
The pipework fitted to the tundish outlet should be at least 28mm diameter and
should be terminated at a suitable drain (see Building Regulations 1991 Approved
Document G3).
All fittings and materials must be suitable for use with drinking water and listed in the
c
urrent Water Research Centre "Materials and Fittings Directory".
Installation of unvented hot storage water systems must comply with Part G of
Schedule 1 of the Building Regulations 1991.
Typical water service layout for Hi-Flo Range singl e heater unvented system is
shown in Fig 16.
Typical water service layouts for Hi-Flo Range mult iple heater unvented systems
are shown in Figs 17 and 18.
WATER
CONNECTIONS
Fig 16.
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