6
Aspirante pumped electric
WATER REQUIREMENTS
The installation must be in accordance with the
Water Regulations/Byelaws.
To make sure of 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 8cm 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.4 shows a typical system layout.
DO NOT use jointing compounds on any pipe
fittings for the installation.
Fig.4 Diagrammatic view (not to scale)
WARNING!
Under no circumstances must this
Aspirante pumped electric shower
be connected directly to the mains
water supply.