Mira elite 2 Owner's manual

1
PUMPED ELECTRIC
Maintenance Guide
SHOWER
Installation, Operation &
THESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER
Power
Low
LowFlow
Medium
High
Temperature
Start Stop

2
Contents
Section Page
1 .....Introduction ................................................................... 3
2 .....Important Safety Information .......................................... 4
3 .....Pack Contents Checklist ................................................. 7
4 .....Dimensions ................................................................... 8
5 .....Wiring Diagram ................................................................. 9
6 .....Specifications ................................................................. 10
7 .....Installation Requirements ............................................. 11
8 .....Installation ................................................................. 17
9 .....Commissioning............................................................... 20
10 ...Operation ........................................................................ 22
11 ...Fault Diagnosis............................................................... 26
12 ...Maintenance.................................................................... 28
13 ...Spare Parts...................................................................... 38
14 ...Optional Accessories..................................................... 40
Guarantee, Customer Care Policy, and How to contact us
.............................................................................. Back cover

3
Introduction
Section
1
Thank you for purchasing a quality Mira product. To exploit 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 Elite 2 is a high performance tank-fed (cistern-fed) pumped electric shower for
use where the mains water supply pressure is too low, unreliable or non existent, to
operate a conventional electric shower.
The Mira Elite 2 features an internal pump unit which has been designed to provide all year
round performance, even at the highest flow rates which are necessary during the summer
months. The Elite 2 has separate controls for power selection and temperature/flow
adjustment. The Elite 2 MUST have its own separate cold water supply from the cistern
to ensure correct operation.
Mira Elite 2, 9.8 kW @ 240 Volts white/chrome finish
Mira Elite 2, 9.0 kW @ 230 Volts white/chrome finish..
If you experience any difficulty with the installation or operation of your new shower
control, then please refer to the Maintenance and Fault Diagnosis section, before
contacting Kohler Mira Limited. Our telephone and fax numbers can be found on
the back cover of this guide.

4
1
Section Important Safety Information
2
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. THISMIRAELITE2MUSTBEEARTHED.
In accordance with the current edition of ‘The Plugs and Sockets etc. (Safety)
Regulations' in force at the time of installation, this Mira Elite is intended to be
permanently connected to the fixed electrical wiring of the mains system.
1.3. DO NOT twist the individual cable cores of the live and neutral conductors, as
this will prevent them from entering the terminal block.
1.4. DONOTconnect the Elite 2 to a mains-fed water supply. Such a connection will
damage the appliance, and is not covered under the manufacturer’s guarantee.
1.5. DO NOT allow the Elite 2 to be run dry. We would recommend a minimum
25 gallon/113 ltr cold storage tank for water supply.
1.6. The shower unit must not be fitted where it may be exposed to freezing
conditions. Make sure that any pipework that could become frozen is properly
insulated.
1.7. DONOToperate the appliance if it is frozen. Allow the appliance to thaw before
using again.
1.8. DO NOT operate this appliance if water leaks from the pressure relief valve,
maintenance will be required before the appliance can be safely used.
1.9. DONOTfit any form of outlet flow control as the outlet acts as a vent for the tank
body. Only Mira recommended outlet fittings should be used.
1.10. There are no user serviceable components beneath the cover of this appliance.
Only a competent tradesperson should remove the cover.
1.11. 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.
1.11.1. If the cover is not correctly fitted and water has entered the Mira
Elite 2 case.
1.11.2. If the case is damaged.

5
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, and on or
inside the Mira Sport.
2.4. 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. This is a high power unit; it is essential to contact your electricity supply
company to ensure that the electricity supply is adequate for the purpose.
2.6. The plumbing installation must comply with the requirements of UK Water
Regulations/Byelaws(Scotland), Building Regulations orany particularregulations
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:
1.11.3. If the appliance begins to make an odd noise, smell or smoke.
1.11.4. If the appliance shows signs of a distinct change in performance,
indicating a need for maintenance.
1.11.5. If the appliance is frozen.
1.12. Isolate the electrical and water supply before removing the cover.
1.13. Mains connections are exposed when the cover is removed.
1.14. Refer to the wiring diagram before making any electrical connections.
1.15. Ensure all electrical connections are tight, to prevent overheating.
2.4.1. National Inspection Council for Electrical Installation and Contracting.
2.4.2. The Electrical Contractors Association (ECA), England and Wales.
2.4.3. The Electrical Contractors Association of Scotland (ECAS).

6
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 this appliance 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.

7
2. Documentation
1 x Installation, Operation and Maintenance Guide 
1 x Installer Product Checklist 
1 x Customer Support Brochure 
Section
3Pack Contents Checklist
Tick the appropriate boxes to familiarize yourself with the part names and to
confirm that the parts are included.

1. Mira Elite 2
1 x Mira Elite 2 
Power
LOW
LowFlow
Medium
High
Temperature
Start Stop
3 x Wall Plug 
1 x Compression Nut 
1 x Olive 
3 x Fixing Screws 
3 x Rubber Feet 

8
Power
Low Flow
Low High
Temperature
Start Stop
Medium
Dimensions
Section
4
270 mm 85 mm
344 mm

9
Section Wiring Diagram
5
Pressure/Power
Selector Switch
High
Medium
Load
Low Flow
Neon
Motor
Thermal
Trip
Thermal Cutout
Dual Disc
Power On
Neon
On/Off
Solenoid Valve
Tank Connection
Inlet Connector
LE
N
120 Brown
123 Green
122 Green 121 Blue
124 Black
128 Blue
126 Brown
130 Black
127 Brown 129 Blue
125 Black
132 Blue
131 Orange
96 Red
97 Brown
86 Brown 88 Red
1
54
2
37
LN

10
Section Specifications
6
1. Plumbing
1.1. The 15 mm inlet compression connector incorporates an inlet filter, which
swivels to allow two entry positions, top and back.
1.2. The outlet terminates with a 1/2" BSP male thread for connection to a Mira
flexible shower hose.
2. Electrical
2.1. The terminal block will not accept cable larger than 16 mm2.
2.3. The motor is fitted with a self resetting thermal trip protection device,
designed to operate if the ambient temperatures become too high. The
maximum recommended ambient temperature for the Elite 2 is 30°C.
2.4. The following power ratings for the heater tanks are available with their
respective voltages:
Mira Elite 2 9.8 @ 240V 45 Amps
Mira Elite 2 9.0 @ 230V 40 Amps
2.5. The motor will absorb approximately 100 Watts maximum power under
normal working conditions.
3. Standards and Approvals
3.1. The Mira Elite 2 has been designed to comply with the requirements of the
British Electrotechnical Approvals Board (BEAB) and the requirements of UK
Water Regulations/Bylaws (Scotland).
3.2. This Mira Elite 2 complies with all relevant directives for CE marking.

11
Section
7Installation Requirements
1. Plumbing
Read the section “Important Safety Information” first
1.1. The Elite 2 is designed to operate with water supply pressures from 0.008
bar (80 millimetres head) to 1 bar (10 metres head) (i.e. the vertical
distance from the base of the cold cistern to the top of the Elite 2).
However, the minimum head required will increase with pipe length and the
guide given in paragraph 1.17. should be used to ensure that adequate
head is available for any given installation.
The Elite 2 MUST have its own separate supply from the cistern.
Incorrect Cistern Take Off
Debris from the bottom of the
cistern and air generated when
the cistern refills will enter the
shower supply.
Correct Cistern Take Off
Positioned away from the ball
valve, with a 25 mm distance up
from the base of the cistern.
This connection will prevent air
and debris entering the shower
supply.
25 mm
1.2. The Elite 2 is suitable for installation within the shower area and is fitted
with a pressure relief valve. It must be positioned over a water catchment
area with the controls at a convenient height. The shower fitting should be
positioned so that it discharges down the centre line of the bath, or across
the opening of a shower cubicle, and must be directed away from the
shower unit.
1.3. Use a minimum of 15 mm diameter supply pipework. It should be noted,
however, that on long pipe runs this should be increased to 22 mm (refer to
para 1.17. for guidance). When using flexible plastic pipe it is essential that
the pipe is kept flat and not looped up at any point as this may lead to air
build up which may impair performance of the shower.
25 Gallon/113 Ltr Cistern.

12
1.4. We recommend that a non restrictive (free flowing) isolating valve is fitted into
the supply from the cold water cistern, for maintenance purposes.
1.5. The Elite 2 must be fitted ONTO the finished wall surface i.e. on top of the tiles.
DONOTblock the air ventilation gaps around the sides of the unit, either by tiling
up to the sides of the unit or by using a sealant around the case. This Elite 2 is
designed to be ventilated. Failure to do this may cause product failure.
1.6. Inlet: 15 mm inlet compression connector is designed to accept plumbing
supplies from the top or back.
1.7. Back entry plumbing is accommodated without the need to recess the
15 mm inlet compression connector, enabling the wall’s surface to be completed
and sealed to prevent water ingress, before final fitting.
1.9. Use only the 15 mm inlet compression connector supplied with the Elite 2, do not
use any other types of fitting.
1.10. Outlet: 1/2" BSP male, to accept Mira flexible hose.
1.11. Refrain from applying excessive force when making connections.
Note! Excessive force on the pump housing can impair pumping
performance. Make sure that the supply pipe is trimmed and bent such that
the 15 mm inlet connector sits (or can be lightly pressed) easily on the back
of the clamp bracket prior to connection with the pump housing.
1.12. To avoid damage to the case when soldered fittings are used, pre-solder the
pipework and fittings before connecting them to the 15 mm inlet compression
connector.
1.13. Supply pipework MUST be flushed to clear debris before connecting the Elite 2.
1.14. A hose retaining ring is supplied to prevent the handset from dropping below the
spillover level of the bath or shower, which could lead to contamination from back-
siphonage (refer to Figure 1). The supplied hose retaining ring should meet the
great majority of user requirements for shower installations with flexible outlet
fittings. However, there will be occasions when the hose retaining ring will not
provide a suitable solution. In these instances an outletdouble checkvalve, e.g.
the Mira DCV-H, must be fitted. The inclusion of the Mira DCV-H will increase
the required supply pressure typically by 0.1 bar.
Double checkvalves, fitted in the inlet supply to the appliance, cause a pressure
build-up, which could exceed the maximum static inlet pressure for the appliance.
1.8. Swivel the inlet connector assembly to suit (not directly back into the wall). Avoid
trapping the green earth bonding wire.

13
Plumbing Schematic Diagram (to be used with pipework table overleaf)
1.16. Avoid layouts where the hose will be sharply kinked. This may reduce the life of
the hose.
1.17. Long pipe runs and excessive use of 90° elbows will significantly reduce the
available head to supply the Elite 2. The pipework table should be completed to
ensure that adequate head is available for any given application.
Spill-over
Level
25 mm Minimum
Hose Retaining
Ring
1.15. When installed in very hard water
areas (above 200 ppm temporary
hardness) your installer may advise
the installation of a water treatment
device, to reduce the effects of
limescale formation. Mira Elite 2
malfunction due to excessive
limescale formation is not covered
by the manufacturer’s guarantee.
Your local water company will be
able to advise the hardness of water
in your area.
Power
Low Flow
Low High
Temperature
Medium
Start Stop
A
B
X
Figure 1

14
The dimension (x) is calculated from the table below to give you a minimum effective
head of 80 mm which is necessary to produce a satisfactory shower in all conditions.
Pipework
Size Quantity Head Loss (mm)
15 mm Pipe
22 mm Pipe
15 mm Elbow
22 mm Elbow
(A) + (B)
(A) + (B)
No. Elbows
No. Elbows
x 120
x 20
x 55
x 15
80
Minimum Effective
Head
(x) mm
Size Quantity Head Loss (mm)
15 mm Pipe
22 mm Pipe
15 mm Elbow
22 mm Elbow
(A) + (B)
(A) + (B)
No. Elbows
No. Elbows
x 120
x 20
x 55
x 15
80
Minimum Effective
Head
(x) mm
Example! Based on the diagram Figure X with 15 mm pipework and A = 1.5 m,
B = 0.75 m.
1.5 0.75 2.25 270
1155
405

15
2. Electrical
Read the section “Important Safety Information” first
2.1. 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.
2.2. In a domestic installation, the electricity company fuse must be a minimum
of 80 Amps. As the Elite 2 is a high power unit it is essential to contact your
electricity supply company to ensure that the supply is adequate for the
purpose.
Mira Elite 2 9.8 @ 240V 45 Amps
Mira Elite 2 9.0 @ 230V 40 Amps
Note! Voltage drop due to local heavy demand will reduce the shower
performance.
2.3. A separate permanently connected supply must be taken from the
consumer unit to the shower, via a double pole switch, with at least a 3 mm
contact separation. The switch can be a ceiling mounted pullcord switch
within the bathroom, or a wall mounted switch in an adjacent room.
Suitable ceiling mounted pullcord switches for Mira electric showers
include:-
Make Model Rating
Ashley CS445N 45 Amp
Crabtree 2167 40 Amp
MK 3164 WHI 45 Amp
Tenby CS7545 45 Amp
Volex VX9706 40 Amp
2.4. The minimum cable size required is 6 mm2. To obtain full advantage of the
electrical power provided by the Elite 2, use the shortest possible cable
route from the consumer unit to the Elite 2.
As a guide only, the maximum 6 mm2cable length allowed with a 5 Volt
drop and RCD installed, is 16 m for an Elite 2, 9.8. If longer cable runs are
required then 10 mm2should be used. Refer to the IEE Wiring Regulations
for further clarification.
2.5. We recommend the inclusion of a 30 mA residual current device (RCD).
This may be part of the consumer unit or a separate unit.
2.6. The terminal block will not accept cable larger than 16 mm2.

16
Power
LowF low
Low High
Temperature
Medium
Start Stop
2.7. The Elite 2 must be earthed by connecting the supply cable earth conductor
to the earth terminal. All exposed metal parts within 3 metres of the shower,
within the shower room, must be electrically bonded to earth using a
minimum cable size of 2.5 millimetres2.
2.8. Do not turn on the electrical supply until the plumbing has been completed.
Ensure the water supply is turned on as the unit must not be operated dry.
2.9. The Elite 2 is fitted with a pump motor, and some mechanical noise can be
expected in addition to the noise generated by the spray from the handset.
The type of wall surface will affect the perceived sound levels. Stud partition
and panel walls have a tendency to resonate, whilst solid walls will provide
the quietest operation. The tone of the pump motor may change when the
temperature control knob is adjusted. This is quite normal.
Plumbing and Electrical Schematic Diagram
Consumer Unit
Double Pole
Pullcord Switch
Hose Retaining
Ring
Cold Water Storage
Cistern (Tank)
Hot Water
Cylinder Vent
Pipe
Isolating
Valve
IndependentColdWater
Supply to Shower
Warning Pipe
Hot Water
Cylinder Feed
Cistern Fed
Cold Supply
to Other
Outlets
Cold Water
Mains Feed

17
Section
Section
8Installation
1. Mira Elite 2
Read the section “Important Safety Information” first.
WARNING! Isolate the electrical and water supplies before proceeding with the
installation of the Mira Elite 2.
Note! An installation template is supplied on the internal packaging to help you
install the Mira Elite 2.
1.1. Decide on a suitable position for the Mira Elite 2 (minimum distance of 200
mm from the ceiling to allow for cover fit and removal). The position of the
Mira Elite 2 and the shower fittings must provide a minimum gap of 25 mm
between the spill-over level of the shower tray/bath and the handset. This
is to prevent backsiphonage.
1.2. Unscrew the four cover retaining screws sufficient to remove the cover
and the service tunnel.
Note! The cover retaining screws are captive and should remain in the
case and service tunnel.
1.3. Remove the cover.
1.4. Remove the service tunnel.
1.5. Determine the direction of the inlet water supply: top (falling) or back inlet .
Note! Make sure that the back inlet does not go directly back into the wall.
Use a soldered elbow
1.6. Swivel the inlet connector assembly to suit. Remove the inlet blanking cap.
Avoid trapping the green earth bonding wire.
1.7. A case insert is supplied with the Mira Elite 2, this can be removed to suit
the supplies entering the product. Before fitting the unit, if necessary, make
sure that the case insert is fitted.
1.8. Thoroughly flush the CISTERN FED cold water supply pipe. The
supply must be clean and free from debris BEFORE connecting the
Mira Elite 2.

18
1.12. Make the connection to the CISTERN FED cold water supply pipe.
1.13. Bring the electrical supply cable into the case through one of the cable
entry points.
1.14. Strip back sufficient of the outer cable insulation to enable routing to
terminal block.
1.15. Fit an earth sleeve to the earth conductor. Connect the conductors firmly
into the terminal block. Make sure that the bare cores of each conductor are
securely trapped within each conductor clamp.
L = Red wire
N = Black wire
E = Yellow/Green sleeved wire.
1.16. Re-tighten the terminal block screws.
1.17. If necessary, fit an earth bonding clamp to the copper supply pipe and
ensure bonding complies with the relevant regulations in force at the time of
installation.
1.18 Ensure the drip shield and dust shield are correctly installed. DO NOT
operate the shower if the dust and drip shields are not fitted.
1.19. Refit the service tunnel and the cover and tighten the four cover retaining
screws.
1.20. Fit the shower fittings. Refer to seperate instructions.
1.9. An installation template is supplied on the internal packaging to help you
install the Mira Elite 2. Put the installation template on the wall and mark
through the positions of the fixing holes. Make sure that sufficient electrical
supply cable is available for connection to the terminal block.
1.10. Drill and plug the top two fixing holes. Secure the Mira Elite 2 to the wall
with the screws provided. Drill the bottom fixing hole with the product in
place. Alternative fixings (not supplied) may be necessary for some wall
structures. Avoid drilling into any supply cable/pipe.
Note! Rubber feet are supplied with the Mira Elite 2. The rubber feet
locate in recesses in the rear of the case and can be fitted if required.
1.11. Install the CISTERN FED cold water supply pipe.

19
Installation of the Mira Elite 2
Service Tunnel
Inlet Connector
Assembly
Electrical
Supply Cable
(The inlet connector
assembly can be
swivelled to suit the
supply)
Important! Do not fit the Mira Elite 2 to the wall and tile up to the case. The Mira Elite 2 must be
fitted on to a finished flat and even wall surface (small pillars moulded on to the back of the case
allow air circulation).
Fixing Screw
Drip Shield
(Do not operate
the shower if the
drip shield is not
fitted.)
Terminal
Block
Cistern Fed Cold Water
Supply Pipe
Captive Cover Retaining
Screws
Fixing Screw
Fixing Screw
Rubber feet
can be fitted
to the rear of
the case if
required.
Dust Shield
(Do not operate
the shower if the
dust shield is not
fitted.)

20
1. Mira Elite 2
If you are unsure how electric showers work, please read through the OperationSection
before continuing.
Section
9Commissioning
1.1. Make sure that the START/STOP button is in the
outermost position and that the electrical supply has
been isolated.
1.2. Turn the BOTTOM control knob fully anticlockwise to
the full cold position.
1.3. Turn the water supply fully on at the isolating valve,
check that water is not leaking from the bottom of the
case.
1.4. Turn the TOP control knob to 'LOW'.
1.5. Switch on the electrical supply at the double pole
switch. The 'POWER' neon will provide a visual
indication that the electrical supply is connected.
1.6. Press the STARTbutton. Check that water flows freely
from the shower within a few seconds. If not refer to the
Maintenance Section. The water from the handset
will be at full force and at a cool temperature.
1.7. Turn the BOTTOMknob slowly clockwise. As the knob
is rotated the flow will be reduced and the temperature
will remain cool - this shows that the flow regulator
assembly is operating correctly. Return the knob
anticlockwise to full cold position.