Redring EW15 User Manual

15
iv) 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 6 systems so that any
installation can be traced reasonably easily. The single common discharge pipe
should be at least one pipe size large than the largest individual discharge pipe to
be connected. If unvented hot water storage systems are installed where
discharges from safety devices may not be apparent i.e. in dwellings occupied by
the blind, infirm or disabled people, consideration should be given to the
installation of an electronically operated device to warn when discharge takes
place. Note: The discharge will consist of scalding water and steam. Asphalt,
roofing felt and non-metallic rainwater goods may be damaged by such
discharges.
500 mm Max.
300 mm
Min.
Temperature & pressure
relief valve
Metal discharge pipe (D1) from
temperature & pressure relief valve.
to tundish.
Metal discharge pipe (D2) from tundish
with continuous fall. See Table 2 and worked
example.
Tundish
Fixed grating
Trapped gulley
Discharge below
fixed grating.
(see page 8 for
alternative points
of discharge).
diagram 6
Suggested ways of terminating discharge pipes safely

Redring EW15 Specifications

General

Brand	Redring
Model	EW15
Category	Water Heater
Language	English