Use Of Flow Regulators With Combination Boilers - Mira Platinum Dual Installation Manual

Use of Flow Regulators with Combination Boilers

The Mira Digital Mixer Valve can demand hot water quicker than some instantaneous
water heaters/combination boilers can provide, especially in winter when the mains
water is colder. A Hot inlet flow regulator may need to be used to ensure that the
Digital Mixer Valve can deliver a full range of water temperatures.
Note:
The Mira Single outlet digital mixing valves are factory fitted with an 8 l/min hot
inlet flow regulator. If installing a single outlet digital mixer with a combi boiler rated
36kW or greater or to mains pressurised systems the hot inlet flow regulator should
be removed.
Note:
The Mira Dual outlet digital mixing valves do not have a factory fitted hot inlet flow
regulator. These are supplied in the component pack. The table indicates which
flow regulator should be fitted in the hot water inlet of the Mira Digital Mixer Valve if
installing to a combination boiler system.
Boiler Rating 24 kW (80,000 Btu/h) 30 kW (100,000 Btu/h) 36 kW (120,000 Btu/h)
Flow Regulator 7 litres/min
Colour White/Green
Unscrew hot inlet plastic nuts and remove pipe and seal to gain access to the
checkvalve cartridge and filter.
Use flat blade screwdriver to carefully lever cartridge out.
Fit/remove the flow regulator from checkvalve cartridge behind filter as required.
Refit seal, pipe and plastic nut. Plastic nuts require hand tightening only.
9 litres/min
White/Orange
Orange
15
Not required
-
Dual outlet valve shown
Green
1199702-W2-G