Mira events XS User Manual
THESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER
POWER SHOWER
MANUAL
User Guide
Installation &
MANUAL
2
Contents
Section Page
1 ...... Introduction ......................................................................................... 3
2 ...... Important Safety Information ............................................................. 4
3 ...... Pack Contents Checklist ...................................................................... 6
4 ...... Dimensions ......................................................................................... 7
5 ...... Specifications ...................................................................................... 8
6 ...... Installation Requirements:
General ........................................................................................ 9
Electrical ..................................................................................... 9
Plumbing ................................................................................... 10
Schematic Installation Diagrams ............................................... 12
7 ...... Installation:
Before You Start ........................................................................ 13
Configuring Inlet Supplies .......................................................... 13
Shower Installation .................................................................... 15
8 ...... Commissioning .................................................................................. 19
9 ...... Operation ....................................................................................... 20
10 .... Fault Diagnosis:
Fault Diagnosis – User Maintenance .......................................... 21
Fault Diagnosis – Installer Maintenance .................................... 22
11 .... Maintenance ...................................................................................... 25
12 .... Spare Parts ....................................................................................... 36
Guarantee, Customer Care Policy, and How to contact us ......... Back cover
ii
3
Introduction
Section
1
If you experience any difficulty with the installation or operation of your new shower
control, please refer to "Fault Diagnosis" before contacting Kohler Mira Limited.
Our telephone and fax numbers can be found on the back cover of this guide.
Thank you for purchasing a quality Mira product. To enjoy the full potential of your new
shower, please take time to read this guide thoroughly, and keep it handy for future
reference.
The Mira Event XS is a surface mounted all-in-one manual power shower. It is designed
for use with a mains voltage electrical supply and gravity fed hot and cold water
supplies. It features a built-in pump unit, manual mixer assembly and separate controls
for flow and temperature.
The product is fitted with a 15 mm dual entry push-fit inlet manifold which allows pipe
connections to the top, bottom or rear of the power shower. The inlet manifold also
contains inlet filters and check valves.
The shower control is supplied with Mira Logic power shower fittings. These fittings
consist of an adjustable spray handset with four different spray actions (start,
champagne, massage and economy), flexible hose, adjustable clamp bracket assembly,
slide bar and supports, hose retaining ring and wall mounted soap dish. The fittings are
available in a white/chrome or all white finish.
The Mira Event XS is not suitable for use in institutional/commercial applications. It
must not be used with mains water pressure applications; for example, instantaneous
electric heaters, instantaneous gas water heaters, unvented mains pressure systems,
pumped shower systems and some combination-type storage systems.
4
1. Warning!
1.1. Products manufactured by us are safe and without risk provided they are
installed, used and maintained in good working order in accordance with our
instructions and recommendations.
1.2. 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 Event XS is intended
to be permanently connected to the fixed electrical wiring of the mains system.
1.3. DO NOT connect the Mira Event XS to a mains-fed water supply. Such a
connection will damage the Mira Event XS, and is not covered under the
manufacturer’s guarantee.
1.4. The Mira Event XS must not be fitted where it may be exposed to freezing
conditions. Make sure that any pipework that could become frozen is properly
insulated.
1.5. DO NOT operate the Mira Event XS if it is frozen. Allow the Mira Event XS to
thaw before using again.
1.6. DO NOT operate the Mira Event XS if water leaks from the unit, maintenance
will be required before the Mira Event XS can be safely used.
1.7. DO NOT allow the Mira Event XS to be run dry.
1.8. DO NOT fit any form of outlet flow control. Only Mira recommended outlet
fittings should be used.
1.9. There are no user serviceable components beneath the cover of the
Mira Event XS. Only a competent tradesperson should remove the cover.
1.10. If any of the following conditions occur, isolate the electricity and water
supplies and refer to “To contact us”, on the back page of this guide.
1.10.1. If the cover is not correctly fitted and water has entered the case.
1.10.2. If the case is damaged.
1.10.3. If the Mira Event XS begins to make an odd noise, smell or smoke.
1.10.4. If the Mira Event XS shows signs of a distinct change in performance,
indicating a need for maintenance.
1.10.5. If the Mira Event XS is frozen.
1.11. Turn off the electrical and water supplies before removing the cover. The
electricity must be turned off at the mains and, if applicable, the appropriate
circuit fuse removed.
1.12. Mains connections are exposed when the cover is removed.
1
Section
Important Safety Information
2
5
1.13. Moving parts are exposed when the cover is removed.
1.14. Ensure all electrical connections are tight, to prevent overheating.
1.15. Make a note of the layout of the wire runs and connections before removal.
Make sure that they are replaced and connected as noted.
2. Caution!
2.1. Read all of these instructions and retain this guide for later use.
2.2. Pass on this guide in the event of change of ownership of the installation site.
2.3. Follow all warnings, cautions and instructions contained in this guide.
2.4. Follow all warnings, cautions and instructions contained on or inside the Mira
Event XS.
2.5. The electrical installation must comply with the “Requirements for Electrical
Installations” commonly referred to as the IEE Wiring Regulations, or any
particular regulations and practices specified by the local electricity supply
company, in force at the time of installation. The installation should be carried
out by an electrician or contractor who is registered or is a member of an
association such as:
2.5.1. National Inspection Council for Electrical Installation and Contracting
(NICEIC), throughout the UK.
2.5.2. The Electrical Contractors Association (ECA), England and Wales.
2.5.3. The Electrical Contractors Association of Scotland (ECAS).
2.6. The plumbing installation must comply with Water Supply Regulations/Bye-
laws (Scotland), Building Regulations or any particular regulations and
practices, specified by the local water company or water undertakers. The
installation should be carried out by a plumber or contractor who is registered,
or is a member of, an association such as:
2.6.1. Institute of Plumbing (IOP), throughout the UK.
2.6.2. National Association of Plumbing, Heating and Mechanical Services
Contractors (NAPH & MSC), England and Wales.
2.6.3. Scottish and Northern Ireland Plumbing Employers’ Federation
(SNIPEF), Scotland and Northern Ireland.
2.7. Anyone who may have difficulty understanding or operating the controls of any
shower should be attended whilst showering. Particular consideration should
be given to the young, the elderly, the infirm, or anyone inexperienced in the
correct operation of the controls.
2.8. When the Mira Event XS has reached the end of its serviceable life, it should
be disposed of in a safe manner, in accordance with current local authority
recycling, or waste disposal policy.
6
Section
3
Pack Contents Checklist
Tick the appropriate boxes to familiarize yourself with the part names and to
confirm that the parts are included.
1. Mira Event XS
1 x Mira Event XS Manual Power Shower
9
1 x Push-Fit Release
Tool
3 x Rubber Wall Plugs
3 x Fixing Screws
3 x Rubber Feet
4 x Case Inserts
2. Documentation
1 x Installation & User Guide
1 x Customer Support Brochure
1 x Installer/Product Check List
7
4
Dimensions
Section
4
All dimensions are nominal and in millimetres.
310
84
114.6
80.266.228
20
210
8
Section
Specifications
5
1. General
1.1. Ambient temperature – Maximum recommended ambient temperature for
the appliance is 30°C.
1.2. Maximum recommended hot water temperature – 65°C.
Warning! For safety reasons set the maximum stored hot water temperature
to between 60 and 65°C. Such temperatures are considered sufficient to meet
all normal requirements and will also minimise the deposition of scale in hard
water areas.
1.3. Temperature control – To obtain full performance the Mira Event XS should
be installed, operated and maintained in accordance with this guide.
1.4. Maximum static inlet pressure – 1 bar or 10 m (supplies must be gravityfed at nominally equal pressures). Refer to "Installation Requirements –
Plumbing" for further advice.
1.5. Maximum recommended inlet pressure – 0.5 bar or 5 m.
1.6. Minimum static inlet pressure – 0.008 bar or 80 mm (required to prime the
integral centrifugal pump). The minimum static pressure will increase for long
supply pipe lengths. Refer to "Installation Requirements – Plumbing" for
further advice.
1.7. Minimum Flow Rate – 8 l/Min (with a static inlet pressure of 0.1 bar).
Maximum Flow Rate – 16 l/Min (with a static inlet pressure of 0.1 bar).
Flow Rates may vary due to differences in supply pressures.
1.8. The Mira Event pump is continuously rated. The motor is fitted with a selfresetting thermal trip, designed to operate if motor temperatures become too
high due to abnormally high supply voltages.
1.9. Noise – The Mira Event XS is supplied with anti-vibration rubber feet and
rubber wall plugs that isolate the unit from the wall in order to minimize the
amount of noise transmitted. The type of wall the Mira Event XS is fixed to will
also affect the perceived noise level; solid walls will provide a quieter
operation.
2. Plumbing
2.1. Inlet – 15 mm Push-fit inlet manifold.
2.2. Outlet – 1/2" BSP to BS2779.
3. Electrical
9
3.1. Appliance power supply – 230–240 V, 50 Hz, fused at 3 Amps, via a double
pole switched fused connection unit (not supplied) with a minimum 3 mm
contact separation in each pole.
3.2. Power supply connection – The Mira Event XS is fitted with a terminal block
which will accept cable up to 2.5 mm². Minimum cable size (cross-sectional
area) required under normal installation conditions is 1 mm2.
3.3. Absorbed power – Approximately 150 W under normal working conditions.
4. Standards
4.1. The Mira Event XS complies with all relevant directives for CE marking.
The mira event pump motor is continuously rated.
10
Section
6
Installation Requirements
1. General
1.1. Do not take risks with plumbing or electrical equipment.
1.2. Do not install the Mira Event XS in a position where it could become frozen.
1.3. Isolate electrical and water supplies before proceeding with the installation of
the Mira Event XS.
1.4. The shower control must be fed from a cold water storage cistern and hot water
cylinder providing nominally equal pressures.
1.5. The installation must be carried out by a competent installer.
1.6 Decide on a suitable position for the Mira Event XS (minimum distance of 200
mm from the ceiling to allow for fitting and removal of the cover). The position
of the Mira Event XS and the shower fittings must provide a minimum gap
of 25 mm between the spillover level of the shower tray/bath and the handset.
This is to prevent back siphonage.
1.7. The Mira Event XS must be fitted onto the finished wall surface i.e. on top of
the tiles. Do not fit the Mira Event XS to the wall and then tile up to the sides
of the casing. (Small pillars moulded on the back of the case allow air to
circulate and water to drain from behind the appliance).
1.8. When fitting the Mira Event XS with wall entry inlet supplies it is recommended
that the supply pipework is sealed to the wall to prevent water from leaking
back into the wall.
1.9. In solid wall installations the supply pipework should be installed within
ducting to allow some free lateral movement when making supply connections.
2. Electrical
2.1. Do not turn on the electrical supply until the plumbing has been
completed.
2.2. The mains supply must be 230-240 V at 50 Hz connected to the appliance via
a double pole switched 3 Amp fused connection unit (not supplied) with a
minimum 3 mm contact separation gap in each pole.
2.3. Fuses do not give personal protection against electric shock.
2.4. The Mira Event XS must be earthed by connecting the supply-cable earth
conductor to the earth terminal.
Supplementary bonding: Within the bathroom or shower room, all accessible
conductive parts of electrical equipment and extraneous conductive parts that
are likely to introduce earth potential, must be electrically bonded to earth
using a minimum cable size of 4.0 mm
2
if the cable is not mechanically
protected (2.5 mm2 if mechanically protected).
11
2.5 The minimum cable size (cross-sectional area) required is 1mm2 under normal
conditions of installation.
2.6. A 30mA residual current device (RCD) must be fitted. This may be part of the
consumer unit or a separate unit.
3. Plumbing
3.1. Do not use excessive force when making connections to the flexible hoses
or handset, finger tightness is sufficient.
3.2. Do not solder supply pipework with the Mira Event XS connected. Heat
transmitted through the pipework will melt the inlet manifold.
3.3. The storage cistern should have a minimum storage capacity of 230 litres to
provide adequate showering time. Insufficient storage may result in the pump
being run dry.
3.4. Avoid layouts where the hose will be sharply kinked. This may reduce the life
of the hose.
3.5. No form of flow control should be fitted to the outlet of the appliance.
3.6. Fit non-restrictive (free-flowing) isolating valves to the inlet pipework in an
easily accessible position. These valves will allow the water supply to be
turned off to the Mira Event XS, for maintenance purposes.
3.7. When using surface mounted inlet supply pipework the use of polyethylene
plastic pipe suitable for hot water is recommended to enhance the appearance
of the finished installation. Internal pipe supports (not supplied) should be used
with this type of pipe.
3.8. Only use the Mira handset supplied with this appliance.
3.9. If the appliance is installed on a common supply ensure the appliance is the
first take-off from the supply and is not influenced by the operation of any other
appliance.
3.10. If the appliance is installed on a common supply which feeds an adjacent
tap, the maximum static inlet pressure for the appliance will, under certain
circumstances, be exceeded. The action of closing the tap can cause a pulse
in the supply pressure which will result in damage to the appliance. This can
be resolved by the installation of a suitably sized mini expansion vessel, sited
as close as possible to the tap and pressurised to 0.5 bar.
12
3.11. Long pipe runs and excessive use of 90° elbows will significantly reduce the
head available to supply the Event XS. If the effective head is less than
80 mm then:
3.11.1 The expected flow rate may not be achieved.
3.11.2 Air may be drawn into the hot supply from the vent pipe, causing
spluttering and temperature fluctuations at the handset.
Use the table below to calculate the actual head of water (x) needed in your
installation.
505
509
Size
Pipe Run/Quantity of
Elbows
Head
Loss
(mm)
15 mm
Pipe
22 mm
Pipe
22 mm
Elbow
Hot Water Supply
Cold Water Supply
No. of
Elbows
x 15
B x 20 x 20
x 120
A x 120
Pipe Run/Quantity of
Elbows
Head
Loss
(mm)
No. of
Elbows
x 15
D x 20 x 20
x 120
C x 120
+80
Add the minimum
effective head required.
+80
Required head
of water – x mm
15 mm
Elbow
No. of
Elbows
x 55
No. of
Elbows
x 55
33
165
165
1.5 m
180
2.2 m
264
2.5 m
50
2
30
0 m
0
00
Size
Pipe Run/Quantity of
Elbows
Head
Loss
(mm)
15 mm
Pipe
22 mm
Pipe
22 mm
Elbow
Add the minimum
effective head required.
Hot Water Supply
Cold Water Supply
No. of
Elbows
x 15
B x 20
x 20
x 120
A x 120
Pipe Run/Quantity of
Elbows
Head
Loss
(mm)
No. of
Elbows
x 15
D x 20
x 20
x 120
C x 120
+80
Add the minimum
effective head required.
+80
Required head
of water – x mm
Required head
of water – x mm
15 mm
Elbow
No. of
Elbows
x 55
No. of
Elbows
x 55
Add the minimum
effective head required.
Required head
of water – x mm
A = Total length of 15 mm pipe in hot water supply pipe run*
B = Total length of 22 mm pipe in hot water supply pipe run*
C = Total length of 15 mm pipe in cold water supply pipe run*
D = Total length of 22 mm pipe in cold water supply pipe run*
*Measure from the base of the cold water cistern to the relevant inlet port on the Mira Extreme.
Example: With A = 1.5 m, B = 2.5 m, C = 2.2 m, D = 0 m.
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