Everflo EDS120, Руководство по установке

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07
EVERFLO STAINLESS uV
uNVENTEd HOT WATER CyLINdERS
dISCHARGE ARRANGEMENT
Position the inlet control group so that the discharge from both
safety valves can be joined together via a 15mm end feed Tee (see
diagram above). Connect the Tundish and route the discharge
pipe. The discharge pipework must be routed in accordance with
Part G3 of schedule 1 of the Building Regulations. The information
that follows is not exhaustive and if you are in doubt you should
seek advice. The two safety valves will only discharge water under
fault conditions. When operating normally water will not be
discharged. The tundish should be vertical, 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. The tundish should be positioned away from electrical devices.
Any discharge should be visible at the tundish. The tundish should
be located such that any discharge is visible. In addition, where
discharges from safety devices may not be apparent, e.g. people
with impaired vision or mobility, consideration should be given to
the installation of a suitable safety device to warn when discharge
takes place, e.g. electronically operated.
diagram of a typical discharge pipe arrangement (extract from
Building Regulation G3)
Note: The discharge will consist
of scalding water and steam.
Asphalt, roofing felt and
non-metallic rainwater goods
may be damaged by such
discharges.
Note: d2 pipe from tundish is
now allowed to be installed in
soil stacks within premises. This
activity is not recommended
by Kingspan as discharge
from T&P may continue for
long periods of time. It is the
installer’s responsibility to
ensure the discharge pipework
can support the discharge for
prolonged periods.
If used follow guidance on
mechanical seal without water
trap given in G3 Building
Regulations.
As discharge can be in
excess of 90
o
C discharge into
plastic pipework is also not
recommended.