Mira Activate Series Installation And User Manual page 14

Digital Mixing Valve (Pumped/Gravity)
1. Gravity fed hot water systems
Caution! Digital pumped/gravity valves must never be plumbed to mains pressure
systems. This includes mixed gravity fed and mains pressure e.g. gravity hot and
mains cold. Doing so will invalidate the warranty and potentially cause product and
property damage.
Cistern
Minimum 230 litres
Cold
Hot
The shower control must be fed from a cold water storage cistern and a hot water cylinder
providing nominally equal pressures. Pipework layouts and connections must be such that
other draw-offs will not effect water supplies to the shower, shared supplies may lead to
airlocking or water starvation. It is therefore best practice to have independent hot and cold
supplies to the digital mixing valve pumped/gravity.
Hot
Cold
Cold
Hot
30° - 60°
Air Separation
Cold
Dual Outlet Digital Mixing Valve
(Pumped/Gravity)
Outlet 2
Outlet 1
Outlet 1
Outlet 2
Outlet 1
100mm from the
lowest level of the
water in the tank
to the top of the
product.
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