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total discharge from all the D1
discharge pipes connected to it.
- The discharge pipe work from the
expansion
relief
installed constantly falling to an open
point
of
discharge.
recommended to combine it with the
discharge of the temperature and
pressure relief valve.
Note: The T&P valve is pre-sealed
and if moved the seal will be
broken, should this occur, it will
need
to
be
resealed
appropriate sealant (Dimplex part
number R00836-1).
5.3.2
Discharge pipe D2
For
a detailed description of
discharge pipework D2 see chapter
4.4.1.
valve
must
be
It
is
with
an
the
-
Figure 6: Wiring diagram for Immersion Heater
Installation
5.3.3
Tundish
- The
tundish
located in the same space as the
unvented hot water storage system
and be fitted as close as possible to,
and lower than, the safety device,
with no more than 600mm of pipe
between the valve outlet and the
tundish (see Figure 3).
- Discharge should be visible at the
tundish, where discharges may not
be
apparent,
occupied by people with impaired
vision
or
should be given to the installation of
a suitable safety device to warn
when discharge takes place, e.g.
electronically operated.
Note: To comply with the Water
Supply
Regulations, the tundish should
incorporate a suitable air gap.
It is important that the tundish
is positioned away from any
electrical components.
+
should
be
vertical,
e.g.
in
dwellings
mobility,
consideration
(Water
Fittings)
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