mini exposed sequential thermostatic mixer shower
7
Mains Pressurised Thermal Store Systems
(g.6)
Packages of this type, tted with a tempering
valve (blender valve) can be used. A drop tight
pressure reducing valve MUST be tted if the
supply pressures exceed 5 bar running.
An expansion vessel MUST be tted 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).
Blender
valve
Flow
Cold mains supply
Hot
water
Stop tap
Expansion
vessel
Pressure
reducing valve
Return
Service
valves
Mixer
Boiler
*Fig.6
*Diagrammatic view – not to scale.
For illustration purpsoes only.