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Installation Manual
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Mira Platinum Installation Manual

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These instructions are to be left with the user
Installation Guide
Mira Platinum
2
Contents
Introduction ................................................................................................3
Specications ..........................................................................................10
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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
showerhead and ttings.
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
Light Commercial
Heavy Commercial
Healthcare
If you experience any difculty with the installation or operation
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
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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
intended to be permanently connected to the xed electrical wiring of the mains
system. A means for electrical isolation of the appliance shall be provided in the
xed wiring in accordance with local wiring regulations.
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. Mains connections are exposed when the cover of the Digital Mixer Valve is removed.
5. Make sure that any pipework that could become frozen is properly insulated.
6. Having completed the installation, make sure that the user is familiar with the operation of the appliance.
7. Make sure that this guide is left with the user.
8. DO NOT commission this appliance if water leaks from the unit.
9. Only Mira recommended outlet ttings should be used.
10. Ensure all electrical connections are tight, to prevent overheating.
11. 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
designated, qualied and competent personnel.
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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
any particular regulations and practices, specied by the local electricity supply
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. 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.
6. Sunburn or skin conditions can increase your sensitivity to hot water. Make sure that you set the shower to a cooler temperature.
7. If any of the following conditions occur, isolate the electricity and water supplies
and refer to section ”To contact us”, in the back pages of this guide.
• If the cover is not correctly tted and water has entered the
appliance 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.
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Pack Contents Checklist
Digital Mixer Valve
Wireless Controller
Tick the appropriate boxes to familiarise yourself with the part names and to
conrm that the parts are included.
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
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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
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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
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Documentation
1 x Wireless Controller User Guide 1 x Showerhead User Guide 1 x Customer Support Brochure
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Specications
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 15 mm Compression/Pusht
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
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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
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Installation
General
The installation must be carried out in accordance with these instructions, and
must be conducted by designated, qualied and competent personnel.
The installation must comply with any particular regulations and practices,
specied by the local water supply regulations.
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.
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.
1. Instantaneous Multipoint Water Heaters and Combination Boilers
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
draw-off rate indirectly controls the gas ow rate to the burner).
Typical Suitable Installations:
Mira Platinum Shower Fittings
Digital Mixer Valve
Float Valve
Key to Symbols
Isolating Valve
Tempering Valve
Overow Indicator
Mini Expansion Vessel
Pressure Reducing Valve
COLD HOT
Caution! Risk of product damage. Do not t the Mira Digital Mixer - PUMPED VALVE with Instantaneous Multipoint Water Heaters or Combination Boilers.
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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 ow regulator may need to be used to ensure
that the Digital Mixer Valve can deliver a full range of water temperatures. The
table indicates the ow regulator to be tted in the hot water inlet of the Mira
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
experience a brief temperature uctuation. This is caused by the usual operation
of a standard instantaneous water heater/combination boiler whereby the boiler
will turn off when the ow is stopped (as happens after the warm-up sequence has been completed). Upon restart of the shower, a cold shot will be ushed
through followed by a brief hot shot until the hot water supply has stabilised.
An expansion vessel must be tted (and regularly maintained) if any form of
backow prevention device is tted, e.g. non-return valve or PRV. This will ensure
that excess expansion or pulse pressures do not damage the product or plumbing
system. The expansion vessel may already be tted within the boiler (check
with the manufacturer) and is in addition to the normally larger central heating expansion vessel.
Unscrew hot inlet plastic nuts and remove pipe and seal to gain access to the
checkvalve cartridge and lter.
Use at blade screwdriver to carefully lever cartridge out.
Fit ow regulator in checkvalve cartridge behind lter as shown.
Ret seal, pipe and plastic nut. Plastic nuts require hand tightening only.
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Mira Platinum Shower Fittings
3. Gravity Fed Showers
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
Packages of this type, tted with a tempering valve can be used. A drop type
pressure reducing valve must be tted (and regularly maintained) if any form
of backow prevention device is tted, e.g. non-return valve, PRV. This will
ensure that excess expansion or pulse pressures do not damage the product or
the plumbing system. The expansion vessel may already be tted externally or
internally within the thermal store (check with thermal store manufacturer).
90°
30° - 60°
2. Mains Pressurised Instantaneous Hot Water Shower, Heated from a Thermal Store
Digital Mixer Valve
COLD
HOT
Mira Platinum Shower Fittings
Caution! Risk of product damage. Do not t the Mira Digital Mixer - PUMPED VALVE with Mains Pressurised Systems.
Caution! Risk of product damage. Do not t the Mira Digital Mixer - HIGH PRESSURE/COMBI VALVE with Gravity Fed Systems.
Air Separation
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Digital Mixer
Valve
Outlet
Isolators
Isolator
Hot Inlet
Cold Inlet
To Mains
Power Supply
3 amp switched
fused spur
Metal pipework must
be earth bonded
Mira Platinum Shower
Fittings & Wireless Controller
Installation Schematic
A separate, permanently connected supply must be taken from the consumer unit to the appliance through a 3 amp switched fuse spur.
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.
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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
ushed through before connection to the Digital Mixer Valve.
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.
This appliance is intended for permanent connection to the xed electrical
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.
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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
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.
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.
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Place the Digital Mixer Valve in the required location, no more than 10 m from
the nal position of the Wireless Controller.
Connect the Digital Mixer Valve to the electrical supply via a 3 amp fused spur switch.
Bring Wireless Controller to within approximately 1 m of the Digital Mixer Valve. Fit 3 x AA batteries supplied.
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.
The Wireless Controller enters “Clock Setting” function automatically when batteries are connected. Press “-” to alter hours and “+” to alter minutes. Press “ ” to set time and exit “Clock Setting” function.
Switch on electrical supply to Digital Mixer Valve. 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.
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Place Wireless Controller in approximate nal position (no
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
repeat test until satised shower will
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
Mark the xing holes in the required positions.
20
Drill and plug the xing holes.
Note! Installers may wish to use alternative cavity xings, when installing
onto a dry lined, stud partition, shower cubicle or laminated panel wall
structures. However, these methods of xing are beyond the scope of this
guide.
Secure the Digital Mixer Valve in position with the xing screws (supplied).
Caution! Risk of product damage. Make sure both hot and cold supply
pipes are ushed thoroughly prior to connection to the Digital Mixer
Valve. Any product malfunction caused by pipework debris is not covered under the guarantee.
Connect the hot and cold water supply pipes to the Digital Mixer Valve.
Install the Shower Fittings and Wireless Controller (see further instructions).
Wiring to Fused Spur Box
Push-t connector to the
Shower Fittings
Outlet
Cold Inlet
Hot Inlet
Push-t Isolators tted
to both Inlets
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Decide on suitable position for Slide Bar avoiding buried cables and pipes in both wall and ceiling.
Make sure slide bar extension will t
through ceiling. Ceiling hole centre can be altered to avoid roof joists by using supplied spacers
Using template as guide, mark
positions of the xing holes for Wall
Brackets (600 mm). Upper hole to be no more than 645 mm from ceiling.
Note! Use spirit level to make sure
xing holes are vertical.
Fold long end of template and move up to ceiling. Using upper marked
xing hole as guide, mark centre for
hole in ceiling.
Important! If supplied Slide Bar
spacers are required, centre distance for hole will increase to 75 mm from wall.
Cut hole in ceiling 45 mm diameter.
Suitable for solid, dry-lined, stud partition, shower cubicle or laminated panel walls.
The Slide Bar should be xed to the wall at a convenient height for all the family.
It should be positioned so that water sprays down the centre of the bath, or away from the opening of a shower cubicle. Water should spray away from the Wireless Controller when the Showerhead is held on the Slide Bar.
Optional spacers (supplied)
Shower Fittings - Ceiling Fed
22
Drill and plug Slide Bar Assembly
xing holes.
Insert xing screws through holes in Wall Brackets and x to wall. Do
not fully tighten. Use template to set correct distances between Wall Brackets. Fully tighten screws. Use
longer xing screws if using spacers
supplied.
Note! Slots in Wall Brackets allow for adjustment. Use one horizontal slot and one vertical slot. Make sure that holes for Slide Bar Securing Screws are positioned correctly, as shown.
Fit ceiling plate and extension tube. Note! Extension tube may need to
be shortened. Make sure rough end is concealed in ceiling.
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Fit Slide Bar Assembly over Wall Brackets and secure with screws supplied. (Do not overtighten.)
Connect ceiling extension tube.
Feed plastic pipe up through the slide bar and extension into ceiling. Do not allow any debris to block the plastic pipe.
Push and twist plastic pipe end until it “clicks” and locks in place.
Connect plastic pipe in ceiling to outlet pipe from valve using elbow supplied. Push all parts together fully and lock elbow onto pipes using clips supplied.
Connect elbow to Digital Mixer Valve. Fit an isolating valve between to enable easy maintenance. (Pipe and isolating valve not supplied). Lock pipe to elbow using clip supplied.
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Place rst washer in end of hose, then attach to pipe end. Do not t
showerhead until after pipework
has been fully ushed through. See
section “Commissioing”.
Shower Fittings - Rear Fed
Decide on suitable position for Slide Bar avoiding buried cables and pipes in wall.
Using template as guide, mark
positions of the xing holes for Wall
Brackets (600 mm). Note! Use spirit level to make sure
xing holes are vertical.
Drill and plug xing holes.
Suitable for solid, dry-lined, stud partition, shower cubicle or laminated panel walls.
The Slide Bar should be xed to the wall at a convenient height for all the family.
It should be positioned so that water sprays down the centre of the bath, or away from the opening of a shower cubicle. Water should spray away from the Wireless Controller when the Showerhead is held on the Slide Bar.
25
Insert xing screws through holes in Wall Brackets and x to wall. Do
not fully tighten at this stage. Use template to set correct distances between Wall Brackets. Fully tighten screws.
Note! Slots in Wall Brackets allow for adjustment. Use one horizontal slot and one vertical slot. Make sure that holes for Slide Bar Securing Screws are positioned correctly, as shown.
Position Slide Bar over Wall Brackets and secure with screws. (Do not overtighten.)
Fit Slide Bar End Caps into top and bottom of Slide Bar Assembly. Push and twist caps until they “click” and lock in place.
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