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Dimplex
recommend
maintenance inspection is carried out
on the domestic hot water cylinder. In
hard water areas this should include
inspection of the heat exchanger and
immersion heater, [above 120ppm or
120mg/l]. A local water treatment
company should be able to offer free
water quality testing. The heating
elements may require periodic de-
scaling. The installer should do this as
part of a maintenance agreement.
If required, precautions can be taken
to minimise effects of water hardness,
i.e. installation of water conditioner or
water softener. These devices should
be installed in hard water areas where
high water storage temperatures are
required,
i.e.
greater
storage
temperatures,
when
water
hardness
200ppm. Should the water cylinder
require
de-scaling,
performed by a qualified technician.
an
annual
than
60°C
particularly
exceeds
this
must
be
Pre-Installation
4.4 Building regulation G3
Discharge
requirements
As part of the requirements of Building
Regulation G3 any discharge from an
unvented system should be conveyed
to where it is visible, but will not cause
danger to persons in or about the
building. The tundish and the discharge
pipes should be fitted in accordance
with the requirements of Building
Regulation approved document G3,
(England
and
Wales),
Northern Ireland and Standard 4.9 of
Scotland.
Part
P
of
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