Mira Platinum User manual

1
These instructions are to be left with the user
Installation Guide
MIRA PLATINUM

2
CONTENTS
Introduction .............................................................................................3
Products Covered by this Guide...........................................................3
Patents and Design Registration..........................................................3
Important Safety Information .................................................................4
Pack Contents ......................................................................................... 6
 ........................................................................................10
Standards and Approvals ...................................................................10
General............................................................................................... 10
Mira Digital Mixer Valve High Pressure ..............................................10
Mira Digital Mixer Valve Pumped ....................................................... 11
Installation .............................................................................................12
Commissioning .....................................................................................30
Fault Diagnosis......................................................................................32
Maintenance...........................................................................................36
Spare Parts ............................................................................................ 37
Accessories ...........................................................................................40
Dimensions ............................................................................................41
Disposal and Recycling ........................................................................42
Notes ......................................................................................................43
Customer Service................................................................... Back Cover

3
INTRODUCTION
Thank you for purchasing a quality Mira product. To enjoy the full potential of your
new product, please take time to read this guide thoroughly. Having done so, keep
it handy for future reference.
The Mira Platinum Mixer Valve is designed to be used with the Mira Platinum

Products Covered by this Guide
Mira Platinum Digital Mixer - High Pressure/Combi Valve
Mira Platinum Digital Mixer - Pumped Valve.
Mira Platinum Wireless Controller.
Mira 360 Fittings (Ceiling Fed or Rear Fed).
Recommended Usage
Domestic 9
Light Commercial 8
Heavy Commercial 8
Healthcare 8

of your new shower, then please refer to the Fault Diagnosis section,
before contacting Kohler Mira Ltd.
Our telephone and fax numbers can be found in the back of this guide.
Patents and Design Registration
Design Registration 001065023-0003
Patents GB: 2 392 225, 2 421 297
USA: 7 240 850
Patent Applications
UK: 0723827.2
0715612.8
0804172.5
Euro: 03254070.0
USA: US-2007-0221740-A1
PCT/GB2008/004020
WO 2009/022112

4
IMPORTANT SAFETY INFORMATION
Warning!
Follow all warnings, cautions and instructions contained in this guide, and
on or inside the appliance.
1. THIS APPLIANCE MUST BE EARTHED. ENSURE SUPPLEMENTARY
BONDING COMPLIES WITH THE “REQUIREMENTS FOR ELECTRICAL
INSTALLATIONS”.
In accordance with the current edition of ’The Plugs and Sockets etc. (Safety)
Regulations’ in force at the time of installation, the Mira Digital Mixer Valve is

system. A means for electrical isolation of the appliance shall be provided in the

2. Products manufactured by us are safe and risk-free, provided that they are
installed, used and maintained in good working order, in accordance with our
instructions and recommendations.
3. Isolate the electrical and water supplies before connecting to the appliance.
4. This appliance must be provided with means for disconnection that is incorporated

Refer to the wiring diagram before making any electrical connections.
5. Mains connections are exposed when the cover of the Digital Mixer Valve is
removed.
6. Make sure that any pipework that could become frozen is properly insulated.
7. In accordance with BS7671 a 30mA Residual Current Device (RCD) MUST
be included in the electrical circuit. This may be part of the consumer unit or a
separate unit.
8. All pipework must be checked for leaks before the product installation is
completed. The product should be pressurised and both inlet & outlet connections
inspected.
9. Having completed the installation, make sure that the user is familiar with the
operation of the appliance.
10. Make sure that this guide is left with the user.
11. DO NOT commission this appliance if water leaks from the unit.

13. Ensure all electrical connections are tight, to prevent overheating.
14. This product is not suitable for areas with high humidity (i.e steam rooms).
Please consult your installer.
Installation must be carried out in accordance with these instructions and by


5
Caution!
1. Read all of these instructions and retain this guide for later use.
2. The electrical installation must comply to “BS 7671 - Requirements for Electrical
Installations”, commonly referred to as the IEE Wiring Regulations - Part 7, or

company.
3. The plumbing installation must comply with the requirements of UK Water
Regulations/Bye-laws (Scotland), Building Regulations or any particular
regulations and practices, specified by the local water company or water
undertakers.
4. Make sure that you fully understand how to operate this shower and make sure
that it is properly maintained in accordance with the instructions given in this
manual.
5. DO NOT turn-on the electrical supply until the plumbing has been completed.
6. The appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, unless they are supervised or have been
given instruction concerning the use of the appliance by a person responsible
for their safety.
7. Sunburn or skin conditions can increase your sensitivity to hot water. Make sure
that you set the shower to a cooler temperature.
8. If any of the following conditions occur, isolate the electricity and water supplies
and refer to section ”To contact us”, in the back cover of this guide.
 
case.
 If the case is damaged.
 If the appliance begins to make an odd noise, smell or smoke.
 If the appliance shows signs of a distinct change in performance, indicating
a need for maintenance.
 DO NOT operate if water leaks from the appliance.
 DO NOT operate this appliance if it is frozen. If suspected of being frozen,
isolate and contact us for advice.

6
PACK CONTENTS
Digital Mixer Valve
Wireless Controller
Tick the appropriate boxes to familiarise yourself with the part names and to

1 x Orange
Flow Regulator
3 x Fixing Screws
2 x Fixing Screws
2 x Wall Plugs
1 x Silicon Glue
Digital Mixer -
High Pressure/Combi Valve Digital Mixer - Pumped Valve
2 x Push-Fit Isolators
3 x Wall Plugs
1 x Green
Flow Regulator
1 x Outlet
Connector
1 x Wireless
Controller
1 x Backplate
3 x AA Batteries
OR

7
Ceiling Fed Fittings
1 x Installation Template
(not shown)
1 x Ceiling Plate
1 x Showerhead
1 x Extension
1 x Slide Bar
Assembly
2 x Brackets
2 x Hex Screws
2 x Wall Plugs
2 x 45mm Screws
2 x 70mm Screws
1 x Hex Key
1 x Elbow Kit
2 x Spacers
2 x Rubber Washers
1 x Hose
1 x Plastic Pipe

8
2 x Hex Screws
2 x Wall Plugs
2 x 45mm Screws
1 x Hex Key
1 x Installation Template
(not shown)
2 x Rubber Washers
1 x Right Angle
Connector (RAC) Kit
1 x Right Angle
Connector Shroud
1 x Hose
2 x Brackets
1 x Slide Bar
Assembly
2 x End Plugs
1 x Showerhead
Rear Fed Fittings

9
Documentation
1 x Wireless Controller User Guide
1 x Showerhead User Guide
1 x Customer Support Brochure

10
SPECIFICATIONS
Standards and Approvals
The Mira Platinum complies with all relevant directives for CE marking.
The Mira Platinum is a type 1 electronic, independently mounted control for
surface mounting.
General
Pollution Degree 2
Rated Impulse Voltage 2.5 kV
Suitable for Drinking Not Suitable
Connections 
Mira Digital Mixer Valve High Pressure
Pressures
Maximum Static Pressure 1000 kPa (10 bar) = 100 m max. total head
Maximum Maintained Pressure 500 kPa (5 bar) = 50 m max. total head
Minimum Maintained Pressure 50 kPa (0.5 bar) = 5 m max. total head
Supply Pressure Differential Nominally Equal
Temperatures
Maximum Temperature (factory preset) 45 °C
Maximum Temperature (setting range) 39 °C - 48 °C
Minimum Temperature Thermostatic control down to 30 °C
Hot Water Range 55 °C - 65 °C
Cold Water Range 1 °C - 20 °C
Temperature Stability ± 1 °C at recommended supply conditions
Ambient Temperature 1 °C - 40 °C
Maximum Relative Humidity 95% non-condensing
Flow Rates and Times
Nominal Flow Rates (will vary depending
on inlet maintained pressure and spray
mode)
Max @ 1.0 bar = 16l/min
Min @ 1.0 bar = 5l/min
Electrical
Supply Voltage 230V RMS 50 Hz ± 10%
Maximum Load 20 W

11
Mira Digital Mixer Valve Pumped
Pressures
Maximum Static Pressure 100 kPa (1 bar) = 10 m max. total head
Maximum Maintained Pressure 100 kPa (1 bar) = 10 m max. total head
Minimum Maintained Pressure 1 kPa (0.01 bar) = 0.1 m min. total head
Supply Pressure Differential Nominally Equal
Temperatures
Maximum Temperature (factory preset) 45 °C
Maximum Temperature (settable range) 39 °C - 48 °C
Minimum Temperature Thermostatic control down to 30 °C
Full Cold also selectable
Hot Water Range 50°C - 65°C
Cold Water Range 1°C - 20°C
Temperature Stability ± 1°C at recommended supply conditions
Ambient Temperature 1°C - 40°C
Maximum Relative Humidity 95% non-condensing at 30 °C
Flow Rates and Times
Flow Rates (will vary depending on inlet
maintained pressure and spray mode)
Max @ 0.01 bar = 16 l/min
Min @ 0.01 bar = 6 l/min
Electrical
Supply Voltage 230V ± 10%, RMS 50 Hz
Maximum Load 200 W at 230V AC

12
INSTALLATION
General
The installation must be carried out in accordance with these instructions, and

The installation must comply with any particular regulations and practices,

The Digital Mixer Valve may be installed in a loft space, under the bath
or in a convenient cupboard space provided there is enough room for
maintenance (e.g. Removal of Digital Mixer Valve Lid). Failure to do so may
result in an inability to carry out any maintenance. Safe and easy access to
the product should be available at all times.
When installing a mixer valve in an area not regularly accessed,
consideration for potential leaks must be taken into account. While such
events are unlikely, it is advisable to periodically check the installation
for traces of water on or around the product. If possible, site the valve in
a location where any leak would be contained or routed to avoid areas
sensitive to water damage.
Isolating valves must be installed to both inlets (supplied) and outlet, close to the
Digital Mixer Valve for ease of maintenance.
Caution! Risk of product damage. The Digital Mixer Valve must be installed
in a dry, ventilated area where it will not freeze.
Important Information Regarding Radio Controlled Devices
 Metal objects such as steel baths or sinks, cold water storage tanks, hot
water cylinders, foil lined plaster board walls, radiators and even thick brick
walls, can all dramatically reduce the radio operational range of any radio
controlled product.
 Interference from other radio signals can dramatically reduce the ability of the
Platinum user interface / digital mixer to register or communicate. This may
include; mobile phones, radio control boiler thermostats, wireless broadband
routers, radio control toys, cordless phones, remote outdoor weather stations
etc.
 
ensure all other radio interference is temporarily switched off.
 Note! Failure to follow these guidelines can result in poor, intermittent or
complete failure to communicate with the digital mixer.

13
MIRADM2 WIRELESS
HP/COMBI
1666.009
N85A
MANUFACTURED
KOHLERMIRALTD.
CHELTENHAM
GL525EP
TEL:[phone]
www.mirashowers.com
HOT COLD
POWER:230 V AC 20W
PROTECTION:IP24
MIN.SUPPLYPRESSURE: 50 kPa (0.5 bar)
MAX.WORKING PRESSURE: 500 kPa (5 bar)
MAX.STATICPRESSURE: 1000 kPa (10 bar) (WRAS)
MAX.SUPPLYWATER TEMP: 65 °C
POSITIONAPPLIANCE OR
ISOLATEMAINS ELECTRICITY BEFORE
REMOVINGCOVER!
F9001
DIGITALMIXER 2 WIRELESS
cold
warm
hot
Only install the High Pressure Digital Mixer Valve with a multipoint gas water
heater or combination boiler of a fully modulating design (i.e. where the water

Typical Suitable Installations:
Mira Platinum
Shower Fittings
Digital Mixer
Valve
Float Valve
Key to Symbols
Isolating Valve
Tempering Valve

Mini Expansion Vessel
Pressure Reducing
Valve
COLD HOT
1. Instantaneous Multipoint Water Heaters and Combination Boilers

VALVE with Instantaneous Multipoint Water Heaters or Combination Boilers.
An expansion vessel must

that excess expansion or pulse pressures do not damage the product or plumbing

with the manufacturer) and is in addition to the normally larger central heating
expansion vessel.

14
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

that the Digital Mixer Valve can deliver a full range of water temperatures. The

Digital Mixer Valve.
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 9 litres/min Not required
Colour White Green White/Orange -
Use of Warm-up Feature with Combination Boilers
When using the warm-up feature (see User Guide) with the Digital Mixer Valve
supplied via an instantaneous water heater/combination boiler, the user may

of a standard instantaneous water heater/combination boiler whereby the boiler


through followed by a brief hot shot until the hot water supply has stabilised.
Unscrew hot inlet plastic nuts and remove pipe and seal to gain access to the




Green
Orange

15
Mira Platinum
Shower Fittings
3. Gravity Fed Showers
MIRADM2WIRELESS HP/COMBI 1666.009 N85A MANUFACTURED KOHLERMIRALTD. CHELTENHAM GL525EP TEL:[phone] www.mirashowers.com
HOT COLD
POWER:230V AC 20W PROTECTION:IP24 MIN.SUPPLYPRESSURE: 50 kPa (0.5 bar) MAX.WORKINGPRESSURE: 500 kPa (5 bar) MAX.STATICPRESSURE:1000 kPa (10 bar) (WRAS) MAX.SUPPLYWATERTEMP: 65 °C POSITIONAPPLIANCE OR
ISOLATEMAINSELECTRICITY BEFORE
REMOVINGCOVER!
F9001
DIGITALMIXER2 WIRELESS
cold
cold
cold
warm
hot
hot
MIRADM2WIRELESS
HP/COMBI
1666.009
N85A
MANUFACTURED
KOHLERMIRALTD.
CHELTENHAM
GL525EP
TEL:[phone]
www.mirashowers.com
HOT COLD
POWER:230V AC 20W
PROTECTION:IP24
MIN.SUPPLYPRESSURE: 50 kPa (0.5 bar)
MAX.WORKINGPRESSURE: 500 kPa (5 bar)
MAX.STATICPRESSURE:1000 kPa (10 bar) (WRAS)
MAX.SUPPLYWATERTEMP: 65 °C
POSITIONAPPLIANCE OR
ISOLATEMAINSELECTRICITY BEFORE
REMOVINGCOVER!
F9001
DIGITALMIXER2 WIRELESS
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. It is therefore best practice to have independent hot and cold supplies to
the Low Pressure (pumped) Digital Mixer Valve.
1.0 metre minimum
100 mm from the lowest level of
water in the tank
Cistern
Minimum 230 litres
90°
30° - 60°
MIRADM2WIRELESS
HP/COMBI
1666.009
N85A
MANUFACTURED
KOHLERMIRALTD.
CHELTENHAM
GL525EP
TEL:[phone]
www.mirashowers.com
HOT COLD
POWER:230V AC 20 W
PROTECTION:IP24
MIN.SUPPLYPRESSURE:50 kPa (0.5 bar)
MAX.WORKINGPRESSURE: 500 kPa (5 bar)
MAX.STATICPRESSURE:1000 kPa (10 bar) (WRAS)
MAX.SUPPLYWATERTEMP: 65 °C
POSITIONAPPLIANCE OR
ISOLATEMAINSELECTRICITY BEFORE
REMOVINGCOVER!
F9001
DIGITALMIXER2 WIRELESS
cold
warm
hot
2. Mains Pressurised Instantaneous Hot Water Shower, Heated
from a Thermal Store
Digital Mixer
Valve
COLD
HOT
Mira Platinum
Shower Fittings

VALVE with Mains Pressurised Systems.


Air Separation

pressure reducing valve must


or pulse pressures do not damage the product or the plumbing system. The

store (check with thermal store manufacturer).

16
A separate, permanently connected supply must be taken from the ring main
to the appliance through a 3 amp double pole switched fuse spur providing a
minimum 3mm contact separation gap in each pole.
Inlet and outlet isolating valves must be installed close to the Digital Mixer
Valve for ease of maintenance (recommended maximum 300 mm from the
product on the inlets).
The use of supply-line or zone strainers will reduce the need to remove
debris at the Digital Mixer Valve. The recommended maximum mesh aperture
dimension for such strainers is 0.5 mm.
Pipework must be rigidly supported to avoid any strain on the connections.
A 30 mA Residual Current Device (RCD) must be included in the electrical
circuit. This may be part of the consumer unit or a separate unit.
Isolators
Mira Platinum Shower
Fittings & Wireless Controller
Installation Schematic
Isolator
Outlet
Digital Mixer
Valve
Metal pipework must be
earth bonded
3 amp switched
fused spur To Mains
Power Supply
Hot Inlet
Cold Inlet
Mounted on a
Horizontal Surface

17
Pipework dead-legs should be kept to a minimum.
Supply pipework layout should be arranged to minimize the effect of other
outlet usage upon the dynamic pressures at the Digital Mixer Valve inlets.
To eliminate pipe debris it is essential that supply pipes are thoroughly

Mounting on a Vertical Surface
Inlets
Outlet
Inlets
Outlet
Mounting on a Horizontal Surface
The Digital Mixer Valve (which contains the thermostatic mixing valve) may
only be orientated in the positions shown when mounted on a vertical or
horizontal surface. Failure to do so will compromise the ability of the unit to
fail-safe and deliver constant blend.
Maximum hot water range 50°C - 65°C.

wiring circuit.
If the supply cords are damaged, they must be replaced by the manufacturer
or a service engineer.
Warning! Turn off the electrical and water supplies before proceeding with
the installation of the appliance. The electricity must be turned off at the
mains and the appropriate circuit fuse electrically isolated, if applicable.

18
Up to 10 m
3 amp switched
fused spur
Up to 3 m
Ceiling Fed
Fitting
Rear Fed
Fitting
Cold Water Inlet
Hot Water Inlet
Shower
Outlet
Wireless
Controller
Up to 4.5 m total distance to
Right Angle Connector (RAC)
Digital Mixer Valve
Position and Signal Test
Important! When choosing a position for the Digital Mixer Valve in relation to the
Wireless Controller and the Shower Fittings, consider the following points:
The length of pipework running from the Digital Mixer Valve to the Shower Fitting
will have an effect on the showering temperature and the response time when
changing the temperature using the Wireless Controller. The shorter the length
of pipework from the Digital Mixer Valve the better the shower will respond. It
is recommended that this length does not exceed 3 m (Ceiling Fed Fitting) or
4.5 m (Rear Fed Fitting).
The ambient temperature of Digital Mixer Valve site (loft space, airing cupboard
etc...) can have an effect on showering temperature. Insulate all pipework as
required, particularly from the Digital Mixer Valve to the Shower Fitting.
Important! Insulate pipework only. Do not attempt to insulate or cover the
Digital Mixer Valve.
MIRADM2 WIRELESS
HP/COMBI
1666.009
N85A
MANUFACTURED
KOHLERMIRA LTD.
CHELTENHAM
GL525EP
TEL:[phone]
www.mirashowers.com
HOT COLD
POWER:230 V AC 20 W
PROTECTION:IP24
MIN.SUPPLY PRESSURE: 50 kPa (0.5 bar)
MAX.WORKING PRESSURE: 500 kPa (5 bar)
MAX.STATIC PRESSURE: 1000 kPa (10 bar) (WRAS)
MAX.SUPPLY WATERTEMP: 65 °C
POSITIONAPPLIANCE OR
ISOLATEMAINS ELECTRICITY BEFORE
REMOVING COVER!
F9001
DIGITALMIXER 2 WIRELESS
The Wireless Controller can be sited up to 10 m from the Digital Mixer Valve.
However, wall thicknesses and construction types may affect the remote signal
strength and thereby reduce the range. The Controller range should be tested
on site prior to installation to ensure shower’s reliability.
Refer to Section INSTALLATION “Important Information Regarding Radio
Controlled Devices”.

19
Place the Digital Mixer Valve in the required location, no more than 10 m from

Connect the Digital Mixer Valve to the electrical supply via a 3 amp fused
spur switch - DO NOT TURN ON.
Bring Wireless Controller to within approximately 1 m of the
Digital Mixer Valve. Fit 3 x AA batteries supplied.
Switch on electrical supply to Digital Mixer Valve.
The Digital mixer will now begin to make a noise as it resets itself and
registers with the Wireless Controller.
Droplet symbol is displayed for approximately 30 seconds.
Do not remove the batteries or switch off the Digital Mixer
Valve. Droplet symbol goes out indicating Digital Mixer Valve
and Wireless Controller have been assigned to each other.
The following procedure details how to assign the Wireless Controller to the Digital
Mixer Valve and test the remote signal strength.
Note! No plumbing connections are required for this test.
Note! Other radio signals from sources such as mobile phones, radios controlled
boiler thermostats, wireless broadband etc. can dramatically reduce the ability of
the Mira Platinum to register.
It is recommended that such items are switched off during this process.

20

more than 10 m from Digital Mixer Valve) and test wireless
signal by pressing the “ ” and adjusting the temperature. If
temperature display remains unchanged and “out of range”
symbol is displayed, units are unable to communicate with each
other.
If test fails, reposition unit(s) and

work reliably.
Caution! Risk of product damage.
Do not run Pumped Valve (low
pressure version) without a water
supply for longer than 15 minutes
during test.
Isolate electrical supply to Digital
Mixer Valve.
Fixing Screw x 3
