Concentric thermostatic mini mixer shower
9
Blender
valve
Flow
Cold mains supply
Hot
water
Stop tap
Expansion
vessel
Pressure
reducing valve
Return
Service
valves
Mixer
Boiler
Mains Pressurised Thermal Store Systems
(
fig.7)
Packages of this type, fitted with a tempering
valve (blender valve) can be used. A drop tight
pressure reducing valve MUST be fitted if the
supply pressures exceed 5 bar running.
An expansion vessel MUST be fitted and regularly
maintained to ensure the unit is not damaged by
excess pressures. This may already be installed
externally or internally within the thermal store
(check with thermal store manufacturer).
*Fig.7
*Diagrammatic view – not to scale.
For illustration purposes only.
