T90xr pumped electric shower
Mains
water
supply
Gate
valve
Stop
valve
Cold water
cistern
Mains electric supply
(via double pole switch)
Double
pole
isolating
switch
Separate permanently
connected supply
from consumer unit
Shower
unit
Minimum capacity
114 litres (25 gallons)
8 cm (3")
minimum
Fig.
Diagrammatic view (not to scale)
WATeR ReQUIReMeNTS
The installation must be in accordance with the
Water Regulations/Bylaws.
To ensure activation of the heating elements,
the shower must be connected to a cold water
supply which is gravity fed from a static cold
water storage cistern with a minimum capacity of
114 litres (25 gallons).
There must be a maximum head of water of
10 metres and a minimum head of 8 cm as
measured between the bottom of the cistern and
the top of the shower unit. There must be no
other cold water draw-offs between the cistern
and the unit and the pipe must not supply water
to any other tap or fitting at a lower level.
Note:
The supply pipe from the cistern should be
on the opposite side to the float operated valve
to prevent air being drawn into the pipe when
the cistern is filling.
If it is intended to operate the shower in
hard water areas (above 200 ppm temporary
hardness) a scale inhibitor should be fitted.
Fig.
shows a typical system layout.
Do not use jointing compounds on any pipe
fittings for the installation.
WARNING!
Under no circumstances must this
shower be connected directly to the
mains water supply.
Summary of Contents for T90xr
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