Rointe Dalis Pro 200DHW5, Instruction Manual

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elbows or bends in the pipework and installed in a continuous fall.
• Have discharges visible at both the tundish and the final point of discharge. Where
this is not possible or practical, here are some examples of acceptable discharge
arrangements:
a) Ideally below a fixed grating and above the water seal in a trapped gully.
b) External surfaces such as car parks, hard standings, grassed areas etc. are
acceptable providing that where children play or humans/animals otherwise come
into contact with discharges, a wire cage or similar guard is positioned to prevent
contact whilst maintaining visibility.
c) Discharge at high level, e.g. into a metal hopper and metal down pipe with the
end of the discharge pipe clearly visible (tundish visible or not) or onto a roof capa-
ble of withstanding high temperature discharges of water and 3m from any plastic
guttering system that would collect such discharges (tundish visible).
d) Where a single pipe serves a number of discharges such as in blocks of flats,
the number served should be limited to not more than six systems so that any
installation discharging can be traced reasonably easily.
The single discharge pipe should be at least one pipe size larger than the largest
individual discharge pipe to be connected. If unvented hot water systems are in-
stalled where discharges from safety devices may not be apparent (i.e. in dwellings
occupied by blind or disabled people), consideration should be given to the instal-
lation of an electrically operated device to warn when discharge takes place.
IMPORTANT
Rointe do not take responsibility for any damage or injury caused from discharges.
Sizing table for copper discharge (D2) pipe for common temp. relief valve outlets :
Valve outlet
size
(diameter,
inches)
Min. size of discharge
pipe before tundish
(mm)
Min. size of discharge
pipe D2 after tundish
(mm)
Max. allowed length of
pipe after tundish (m)
G 1/2 15
22 9
28 18
35 27
G 3/4 22
28 9
35 18
42 27