TYPICAL DOMESTIC INSTALLATIONS
Domestic Gravity Fed Systems (
The mixer shower MUST be fed from a cold
water cistern and hot water cylinder providing
nominally equal pressures. There must be a
minimum of one metre head of water. The
minimum head distance is measured from the
base of the cold water cistern to top of the
showerhead.
If valves are gravity, fed then supply pressure
should be verified to ensure conditions of use are
appropriate for the valve.
Pumped Gravity Fed Systems (
The mixer shower MUST be fed from a cold
water cistern and hot water cylinder providing
nominally equal pressures.
The mixer shower may be used with a gravity fed
system with a pump to boost pressures as shown;
please refer to the pump installation guide to
establish the minimum head requirements for
automatic operation of the pump.
Concentric thermostatic mini mixer shower
fig.3)
fig.4)
*Diagrammatic view – not to scale.
*Fig.3
For illustration purposes only.
Stop valve
Cold water
cistern
Gate
valve
Cold
water
mains
supply
Hot water
cylinder
Drain
valve
Other
draw-offs
Draw-off must point down
to avoid airlock issues
*Diagrammatic view – not to scale.
*Fig.4
For illustration purposes only.
Stop valve
Cold water
cistern
Alternative supply
(must be below
vent pipe tee)
Gate
valve
Cold
water
mains
supply
Hot water
cylinder
Drain
valve
Other
draw-offs
Draw-off must point
down to avoid airlock
issues
7
Cold supply
Minimum head
Hot supply
Service
valves
Mixer
Alternative supply
(must be below
vent pipe tee)
Cold supply
Minimum head
Hot
Mixer
supply
Service
Service
valve
valve
Pump
Isolating switch or
pull cord switch
(both fused at 3A)
Ring main
Kit
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