Dimplex SCxn175sd Installation And Operating Instructions Manual page 11

Unvented hot water cylinder – SCxn...d/i, SCxn...sd/si
5 It is recommended to install a drain valve in the lowest point of the cold water feed
to the cylinder. This allows the cylinder to be drained in a controlled manner should
this become necessary.
Note: Between the inlet group and the cold water inlet on the cylinder NO isolating
device should be fitted as by doing so important safety devices could be isolated!
6 The temperature and pressure relief valve must be discharged into the tundish. The
sizing of the discharge pipe work is regulated through building regulation G3. An ex-
tract is shown in Figure 6.
05
01
02
03
Discharge pipe constantly
falling to safe discharge
location.
04
WATER
max. 500mm
06
min. 300mm
Page 11 of 28
ST0109 – C 05/09