Kohler Mira Vie User manual

11486928-W2-A
These instructions must be left with the user
Installation and User Guide
For SPARES,
ADVICE or REPAIRS
please call us free
on 0800 001 4040
(UK only)
Mira Vie
7.5, 8.5, 9.5 and 10.8 kW Electric Shower
Mira Go
8.5, 9.5 and 10.8 kW Electric Shower

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1486928-W2-A

31486928-W2-A
WARNING - This shower can deliver scalding temperatures, cause
re, electric shock or other personal injury if not operated, or
maintained in accordance with the instructions, warnings and
cautions contained in this guide and on the appliance.
Please read the important safety information and the operation section
of this guide before using the shower. Failure to follow the instructions
provided with this shower will invalidate the guarantee.
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK OR INJURY:
1. Children younger than 3 years should not use this shower. Children
3 years to under 8 years should only use this shower under
continuous supervision. Children aged 8 years and above and
persons with reduced physical, sensory or mental capabilities or
lack of experience or knowledge can use the shower if they are
given supervision or instruction concerning use of the appliance
in a safe way and understand the hazards involved.
2. Children shall not be allowed to play with the shower.
3. DO NOT restrict the water ow from the shower outlet, temporarily
bending the shower hose or blocking the shower head while in use
can cause a hot shot of water to be discharged.
4. Cleaning and user maintenance shall not be made by children
without supervision.
5. The outlet must not be connected to any tap or tting other than
those specied.
6. The showerhead must be descaled regularly. Any blockage of the
showerhead or hose can cause damage to the shower.
7. Warning! DO NOT switch on if there is a possibility that the water
in the heater is frozen.
8. The shower must be provided with means for local disconnection
from the supply mains having a contact separation in all poles
that provide full disconnection under overvoltage category III,
the instructions state that means for disconnection must be
incorporated in the xed wiring in accordance with the wiring rules.
Important Safety Information

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9. Installation of the shower must be carried out in accordance with
these instructions by qualied, competent personnel. Read all
instructions before installing the shower.
10.DO NOT switch the shower on if water starts leaking from the shower
case. Isolate the electrical supply to the shower immediately.
11.DO NOT switch the shower on if the case appears to be damaged
or incorrectly tted. Isolate the electrical supply to the shower
immediately.
12.DO NOT increase the power setting or adjust the temperature
control rapidly while using the shower.
13.DO NOT switch the shower o󰀨 and back on while standing in the
water ow.
14.DO NOT change the handset model. Fit only shower heads
recommended by Mira and do no t any additional device to restrict
the water outlet ow.
15.When adjusting the handset mode, point handset away from body
and make sure that the water temperature has stabilised before
continuing to shower.
16.Use caution when altering the water temperature, always check
the temperature before continuing to shower.
17. Switch the shower o󰀨 at the electrical isolating switch when not in
use. This is recommended with all electrical appliances.
18.Installation of the shower must be carried out in accordance with
these instructions by qualied, competent personnel. Read all
instructions before installing the shower.
19.Isolate the electrical and water supplies before commencing
installation. The electricity must be isolated at the consumer unit
and the appropriate circuit fuse removed, if applicable. Mains
connections are exposed when the cover is removed.
20.DO NOT install the shower in areas with high humidity and
temperature (i.e. Steam rooms and saunas).
21.DO NOT install the shower where it may be exposed to freezing
conditions. Ensure that any pipework that could become frozen is
properly insulated.

51486928-W2-A
22.DO NOT connect the outlet of the shower to any tap, control valve,
trigger operated handset or showerhead other than those specied
for use with this shower as the outlet acts as a vent for the tank
body. Only Kohler Mira recommended accessories should be used.
23.DO NOT perform any unspecied modications, or drill or cut holes
in the product other than instructed by this guide. When servicing
only use genuine Kohler Mira replacement parts.
24.DO NOT connect this shower to a Waste Water Heat Recovery
System as this may cause unstable or scalding temperatures to
be delivered from the shower head.
25.Always check the water temperature is safe before entering the
shower.
26.The water supplies to this product must be isolated if the product is
not to be used for a long period of time. If the product or pipework
is at risk of freezing during this period they should also be drained
of water.
27.If the shower is dismantled during installation or servicing then,
upon completion, an inspection must be made to ensure all
electrical connections are tight and that there are no leaks.
28.This appliance is intended to be permanently connected to the
water mains and not connected by a hose set.
29.The water inlet of this appliance shall not be connected to a water
supply obtained from any other water heating system.
30.Warning! This appliance is not to be used to provide a potable
water supply.
31.Maximum Static Pressure is 1000 kPa (10 bar).
32.Minimum Dynamic Pressure is 70 kPa (0.7 bar) for 7.5 kW, 8.5 kW
and 9.5 kW & 100 kPa (1 bar) for 10.8 kW.

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Pack Contents
Tick the appropriate boxes to familiarise yourself with the part names and to conrm
that the parts are included.
1 x Installation & User Guide
1 x Installation Template (printed on the inside of product carton)
1 x Guarantee Card
Documentation
1 x Electric Shower
1 x Component Pack
1 x Shower Fittings
1 x Showerhead
1 x Hose

71486928-W2-A
Wiring Diagram
N
E
L
MICROSWITCH
(LEFT)
MICROSWITCH
(RIGHT)
BROWN
GREEN
BLUE
BROWN BROWN
BLUE
GREY
RED
RED
BROWN
BROWN
RED
GREEN
BROWN
RED
BROWN
BLUE
BLUE
BROWN
GREY

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Introduction
Domestic Light Commercial 
Heavy Commercial Healthcare 
Recommended Usage
Products Covered
Thank you for choosing a Mira shower. To enjoy the full potential of your new shower,
please take time to read this guide thoroughly, and keep it handy for future reference.
Products manufactured by Kohler Mira Ltd are designed to be safe, provided that
they are installed, used and maintained in good working order, in accordance with
our instructions and recommendations.
Follow all warnings, cautions and instructions contained in this guide, and on, or
inside the shower. This guide is also available in digital format from our website or
by contacting customer services.
Product kW Model Number Colour
Mira Vie
7.5 J08 GB
White/Chrome
8.5 J08 AB
9.5 J08 BB
10.8 J08 CB
8.5 J08 AC
Chrome9.5 J08 BC
10.8 J08 CC
Mira Go
8.5 J08 AA
White/Chrome9.5 J08 BA
10.8 J08 CA
Patents and Design Registration
Design Registration: 001375497-0001
Patents: GB 2 427 460
Ireland 85912

91486928-W2-A
Plumbing Variant
7.5 8.5 9.5 10.8
Min Dynamic Pressure 70 kPa (0.7 bar) 100 kPa (1.0 bar)
Max Dynamic Pressure 500 kPa (5.0 bar)
Max Static Pressure 1000 kPa (10 bar)
Min Static Pressure 50 kPa (0.5 bar)
Max Inlet Temperature 30°C
Min Inlet Temperature 2°C
Inlet Connection 15 mm Compression / Pusht Coupling
Max Water Hardness 200 ppm CaCO3
Outlet Connection 1/2” BSP Male
Dimensions
Height 329 mm
Width 220 mm
Depth 101 mm
Specications
Electrical Variant
7.5 8.5 9.5 10.8
Nominal Power at 240 V ac 7.5 kW 8.5 kW 9.5 kW 10.8 kW
Nominal Power at 230 V ac 6.9 kW 7.8 kW 8.7 kW 9.9 kW
Recommended MCB Rating 32 A 40 A 45 A
Max Supply Cable Size 16 mm²
Recommended RCD Rating 30 mA tripping current
Recommended Isolator Switch 45 A double-pole with 3 mm contact separation
Appliance Sealing Rating IP X4 - Suitable for installation in Zone 1
Max Ambient Temperature 30°C
Min Ambient Temperature 2°C

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European Conformity Information
Disposal and Recycling
This range of electric showers complies with the following European directives:
2014/35/EU - Low Voltage Directive (LVD),
2014/30/EU - Electromagnetic Compatibility Directive (EMC),
2011/65/EU - Restriction of Hazardous Substances Directive (RoHS)
This range of electric showers are high power appliances and are subject to
conditional connection. If the main electrical supply fuse is rated less than 80 Amps,
the local electricity supply company must be contacted to conrm if the electrical
supply is adequate.
This range of showers complies with the requirements of the UK’s water regulations.
This product has been designed for domestic use only, Mira Showers guarantee
this product against any defect in materials or workmanship for a period of two years
from the date of purchase (shower ttings for one year).
For Terms and Conditions refer to the back cover of this guide.
Guarantee
End of Product Life
Electrical and electronic devices contain a range of materials that can be separated
for recycling and used in new products.
This product should not be disposed of with your general household
waste. When this product has reached the end of its serviceable life,
please remove any batteries and take it to a recognised WEEE (Waste
Electrical and Electronic Equipment) collection facility such as your local
civic amenity site for recycling.
Your local authority or retailer will be able to advise you of your nearest recycling
facility.

11 1486928-W2-A
1. The plumbing installation must comply with all national or local water regulations
and all relevant building regulations, or any particular regulation or practice
specied by the local water supply company.
2. DO NOT use sealing compounds on any pipe tting or joints.
3. DO NOT install the product in a position in which service access is limited.
4. Decide on a suitable position for the shower (minimum distance of 200 mm from
the ceiling to allow for cover t and removal).
5. The shower is suitable for installation within the shower area and is tted with a
pressure relief valve. It must be positioned over a water catchment area with the
controls at a convenient height for the user.
6. The shower must be tted to a waterproof at and even wall surface.
7. DO NOT t the shower to the wall and tile up to the case.
8. DO NOT seal the gap between the shower and the wall surface.
9. The showerhead should be positioned so that it discharges down the centre line
of the bath or across the opening of a shower cubicle.
10.The showerhead must be directed away from the shower unit, during normal use
the showerhead must not spray directly on to the shower unit.
11. DO NOT apply excessive force to plumbing connections; always provide
mechanical support when making plumbing connections. Any soldered joints
should be made before connecting the shower.
12.This shower is not designed to be plumbed directly from the rear. For rear-entry
supply, add an elbow to the supply pipe and connect as a rising or a falling supply.
13.If pipework and/or electrical cables enter the shower from the rear through a hole
in the wall provision must be made to prevent water ingress back into the wall
structure.
14.This shower is intended to be permanently connected to the mains water supply,
only use the inlet connection supplied with the shower.
DO NOT use any other type of tting.
15. A full bore/non restrictive servicing valve must be tted in a readily accessible
position adjacent to the shower to facilitate maintenance of the shower. DO NOT
use a valve with a loose washer plate (jumper) as this can lead to a build up of
static pressure.
16.A water treatment device should be installed where the water hardness may
exceed 200 ppm. Malfunctions caused by excessive limescale formation are not
covered by this shower’s guarantee (see back page for details).
17.The installation must not cause the hose to be sharply kinked during normal use.
18.DO NOT perform the electrical installation until the plumbing has been completed
and checked for leaks.
Plumbing
Installation Requirements

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19. The position of the shower and shower ttings must provide a minimum gap of 25
mm between the showerhead and the spill over level of any bath, shower tray or
basin and a minimum gap of 30 mm between the showerhead and the spill over
level of any toilet, bidet or other appliance with a Fluid Category 5 backow risk.
Note: There will be occasions when the hose retaining ring will not provide
a suitable solution for Fluid Category 3 installations, in these instances
an outlet double check valve must be tted, this will increase the required
supply pressure typically by 10kPa (0.1 bar). Double check valves tted in
the inlet supply to the appliance cause a pressure build up, which a󰀨ect
the maximum static inlet pressure for the appliance and must not be tted.
For Fluid category 5 double check valves are not suitable.
Zone of
Backflow Risk
30 mm
Minimum
Toilet or Bidet
FC5
Hand Basin
FC3
Bath or Shower
Tray FC3
Electric
Shower
25 mm
Minimum
25 mm Minimum
Hose retaining ring tted and shower ttings xed at a suitable height
preventing dirty water backow.

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Electrical
1. The electrical installation must comply with BS 7671 (commonly referred to as
the IEE Wiring Regulations) and all relevant building regulations, or any particular
regulation or practice specied by the local electricity supply company.
2. Ensure that all circuit protection devices, switches and cabling is adequate for the
rated current of the shower and that the rating of the electricity supply company
fuse and the consumer unit are adequate for the additional demand.
3. The shower must be earthed. Ensure any supplementary bonding complies with
the relevant regulations.
4. This shower is intended to be permanently connected to the xed electrical wiring
of the mains system. A separate supply must be provided from the consumer
unit to the shower.
5. DO NOT supply any other electrical equipment including extractor fans or pumps
via this product.
6. This shower must be provided with means for local disconnection that is
incorporated into the xed wiring in accordance with the relevant local wiring
regulations. This must be a double pole switch, which has at least 3 mm contact
separation in each pole. The switch can be a ceiling mounted pull-cord type within
the shower room or a wall mounted switch tted in the applicable zone area.
7. For new installations a 30mA Residual Current Device (RCD) must be
incorporated into the electrical supply to this shower in accordance with current
wiring regulations. When replacing an existing electric shower we recommend
that a 30mA RCD be incorporated in accordance with current wiring regulations
if not already provided
8. DO NOT apply excessive force to the terminal block.
9. All electrical connections should be checked for tightness to prevent overheating
before switching on the electrical supply.
10.DO NOT switch on the electrical supply until the plumbing has been completed
and checked for leaks.
Plumbing and Electrical Schematic

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Warning, isolate
the electrical and
water supplies
before installing
the shower!
Decide on a suitable position for the shower unit and ttings leaving adequate
space for maintenance. A suitable position for the shower will have a minimum clear
distance of 200 mm from the ceiling. See “Installation Requirements - Plumbing”
for further details.
DO NOT drill through the shower unit into the wall.
DO NOT drill into buried cables or pipes.
Make sure that you use the installation template (supplied).
Installation

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Remove the three screws that hold the cover on and remove the cover.
Determine the direction and route of
the incoming water supply as shown.
Note: DO NOT use an incoming supply
entering the shower directly from the
back. Add an elbow to the supply pipe
and connect it as a rising or falling
supply.
1 Min
DO NOT flush through the product by
removing the inlet filter. Debris may
damage the product and invalidate the
guarantee.
Flush for approximately 1 minute through
pipework prior to connection.
1
2 3
Cover Screw
Screws
Falling
(entering the shower
from the top).
Rising
(entering the shower
from the bottom).

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Use template provided to mark and drill required xing holes. DO NOT drill through
the shower unit into the wall. Plaster and brick dust will damage internal components
of product.
Secure the shower to the wall with all the xing screws and wall plugs (supplied) or
appropriate wall xings (non-corrosive) for your installation.
Check the inlet lter is in position before
connecting the inlet supply.
Connect the inlet supply pipe to the inlet
connector using a push t elbow or an elbow
with compression nuts and olives.
Important! DO NOT use push t elbows that
require specialist tools for removal. Access to
the inlet lter is required periodically and so
any connector needs to easily removed for
maintenance.
Note: When making connections to the
shower do not use jointing paste products as
damage to the shower will occur.
Turn on the water supply and check connection
for leaks.
4
5
Inlet
Supply
Pushfit
Elbow
Inlet
Connector

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Strip back su󰀩cient outer cable insulation
to enable routing to terminal block.
Insert the wires into the terminal block.
Tighten the screws in the terminal block,
make sure the wires are secure and tight.
Ensure the earth bonding complies with
the relevant regulations.
For falling or rising supplies the cover has
thinned sections on the top and bottom
that can be removed to allow entry of the
supply pipe and electrical cables.
Note: DO NOT extend beyond thinned
section.
L (Live) = Brown wire
(Protective Earth) = Green wire
N (Neutral) = Blue wire
6
7
Thinned
Section

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Make sure that the control dials are aligned
with the spindles and replace the cover.
Tighten the three cover screws.
Warning! DO NOT use alternative screws
to secure the cover. This can cause
internal damage to the appliance. Do not
seal around the back of appliance.
Note: DO NOT seal around the back of
appliance.
Install the shower ttings (Refer to the Shower Fittings Installation and User
Guide packed with the product).
The shower must be commissioned before use, please refer to section:
‘commissioning’.
This completes the installation.
10
11
Cover Screw
Screws
8
9

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1
Make sure that temperature control is in
the full cold position.
Turn the power control to low as shown.
2
34
Switch on the electrical supply.
Push the START/STOP button to turn
ON the appliance.
56
COLD
0 - 15 secs
HOT
Water flows freely within a few seconds,
temperature remains cool.
Turn power control to Eco as shown.
78
5 - 10 secs
COLD
HOT
Temperature will rise slightly. Turn power control to High as shown.
Commissioning

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Push the START/STOP button to turn
OFF appliance.
9 10
5 - 10 secs
COLD
HOT
Temperature will rise further. Adjust temperature as required.
Note: Flow rate will reduce when
temperature setting is increased.
Note: A slight hissing sound may be
heard from the shower during operation.
High mains water pressure and high
shower temperatures will affect the tone.
This is quite normal in use.
11 12
Switch off the electrical supply.
13
A small amount of water may continue
to drain over a few minutes. Wait for the
product to fully shut down. (This may take
few seconds)