COMMISSIONING
COLD
0 - 15 secs
HOT
1
Turn temperature control to the
cold position.
3
Switch on the electrical supply. Push START/STOP button.
2
Turn power control to low.
4
5 6
Water ows freely within a few
seconds, temperature remains
cool.
7
5 - 10 secs
Temperature will rise slightly. Turn power control to High.
Turn power control to Eco.
8
HOT
COLD
9 10
HOT
COLD
5 - 10 secs
Temperature will rise further. Adjust temperature as
required.
Note! Flow rate will reduce
when temperature setting is
increased.
11 12
Push START/STOP button. Switch off the electrical supply.
13
A small amount of water may
continue to drain over a few
minutes.
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.
FAULT DIAGNOSIS
Warning! There are no user serviceable components beneath
the cover of the appliance. In the event of a malfunction of the
shower, the troubleshooting information below provides details
on possible causes and remedies that may be carried out
by qualied, competent personnel. Non-qualied personnel
should refer to the fault diagnosis section in the users guide.
Symptom Possible Cause Possible Remedy
No hot water
from the
shower, with
the controls in
ECO/HIGH
position
The shower
temperature
cycles between
hot and cold
with power
control in ECO/
HIGH
Insufcient water
supply pressure
Failure of the
microswitch or
thermal switch
An internal wiring
connection has
failed
One of the heater
tank elements has
failed
Switch assembly
fault
The showerhead
sprayplate is
blocked
The hose is
blocked or kinked
The temperature is
set too high. This is
causing the thermal
switch to turn off the
heating element to
reduce the water
temperature
Contact local water
authority
Check the continuity
of the switches, using
a suitable continuity
measuring device.
Replace the switches
as necessary
Check the integrity of
the internal wiring
Replace the heater
tank assembly
Replace On / Off
switching assembly
Remove and clean the
showerhead
sprayplate.
Refer to the shower
ttings User Guide.
If the fault persists,
contact Customer
Services
Clear the blockage or
replace the hose
Turn the temperature
control anticlockwise
to reduce the water
temperature or turn the
power control to ECO.
DO NOT TAMPER with
the thermal switch
Turning the
temperature
control does not
affect the water
temperature
No water or
very low ow
rate
Water leaks
from the bottom
of the case
near the outlet
and there is no
ow from the
showerhead
The water
cannot be
turned off
The ow regulator is
faulty
The hose or
showerhead is
blocked
The hose or
showerhead is
blocked
The incoming water
supply stop valves,
or the appliance
isolating valve is
closed
Insufcient water
supply pressure
The heater tank is
excessively scaled
The inlet lter is
blocked
The fuse is blown
or the MCB / RCD
has been tripped,
indicating a possible
electrical fault; for
example, heater
tank element failure
The on / off
switching assembly
is faulty
The start / stop
switch is faulty
The solenoid coil is
faulty
The pressure relief
valve in the tank
has been triggered
(usually due to a
blocked outlet),
when the relief valve
operates a small
rubber ball is
ejected
The on / off
switching assembly
is faulty
The start / stop
switch is faulty
The supply pressure
is below the
minimum required
Replace the heater
tank assembly
De-scale showerhead,
check hose for kinks or
damage and replace
if necessary. Refer to
the User Maintenance
section of the user
guide
De-scale showerhead,
check hose for kinks or
damage and replace
if necessary. Refer to
the User Maintenance
section of the user
guide
Open the stop/isolating
valve completely
Contact the local water
authority
Replace the heater
tank assembly
Clean the inlet lter
Switch on the power at
the double pole switch
Replace on / off
switching assembly
Replace start / stop
switch
Replace solenoid coil
Resolve the blocked
outlet and replace the
heater tank assembly
Replace on / off
switching assembly
Replace start / stop
switch
Check the static water
pressure. Note that the
static water pressure
may fall below the
minimum requirement
when other appliances
are drawing water,
for example the
dishwasher or the
washing machine
SERVICING
WARNING
There are no user serviceable parts inside the shower.
Servicing of the shower must only be carried out by
qualied, competent personnel following the instructions
provided in this guide and those provided with any spare
part.
Before replacing any parts, ensure that the underlying
cause of the malfunction has been resolved.
Cleaning the Inlet Filter
Warning! Isolate the
electrical and water supplies
before removing the cover.
Remove the cover.
Remove the elbow from the
inlet connector.
Note! Depending on your installation it may be necessary to
remove the shower from the wall to allow lter removal.
In this case isolate all supplies and follow steps 6 - 8 in reverse
order as detailed in section: ‘INSTALLATION’.
Prise the lter from the inlet
connector assembly.
Rinse the lter under a
running tap to remove
any lodged particles. If
necessary, use a kettle
descalent in accordance
with the manufacturer’s
instructions.
Ret the inlet lter and follow steps 7 and 10 as described in
section: ‘INSTALLATION’.
Note! If the shower was removed from the wall, steps
6, 7, 8 and 10 will need to be followed as described in
section: ‘INSTALLATION’.
Follow the steps detailed in section: ‘COMMISSIONING’ to
prepare the shower for use.
Inlet Filter
Inlet
Connector
WIRING DIAGRAM
BLUE
BLUE
THERMAL
CUTOUT
DUAL DISC
HEATER
TANK
BROWN
BLUE
GREEN
BROWN
RED
BROWN
TERMINAL
BLOCK
BROWN
RED
BROWN
GREEN
BROWN
BROWN
RED
RED
SOLENOID
N
E
L
SPARE PARTS
1788.429
On / Off
Switching
Assembly
1788.435
Inlet Filter
1788.434
Solenoid Coil
1788.430
Terminal Block
Assembly
1788.431
Outlet
Connector
1788.422
Mira Vie Cover Assembly
1788.423
Mira Go Cover Assembly
1693.331 Component Pack (Not illustrated)
1788.432 Wire Pack (Not illustrated)
1788.436 Screw Pack (Not illustrated)
872.01
Microswitch
START/STOP
GREY
BROWN
MICROSWITCH
(RIGHT)
MICROSWITCH
(LEFT)
VALV E
1746.436
Thermal
Switch
1788.426 (8.5kW)
1788.427 (9.5kW)
Heater Tank
Assembly
1788.433
Valve Clamp
1789.085
Latching
Switch
GREY
BLUE
CUSTOMER SERVICE
Guarantee
Your product has the benet of our manufacture’s guarantee which starts from
date of purchase. This guarantee only applies in the United Kingdom and
Republic of Ireland. To activate this guarantee, please return your completed
registration card, visit our website or free phone 0800 0731248 within 30 days
of purchase (UK only).
Within the guarantee period we will resolve defects in materials or
workmanship, free of charge, by repairing or replacing parts or product as
we may choose.
This guarantee is in addition to your statutory rights and is subject to
the following conditions:
The guarantee applies solely to the original installation under normal
use and to the original purchaser only. The product must be installed
and maintained in accordance with the instructions given in this guide.
Servicing must only be undertaken by us or our appointed representative.
Note! If a service visit is required the product must be fully installed and
connected to services.
Repair under this guarantee does not extend the original expiry date.
The guarantee on any replacement parts or product ends at the original
expiry date
For shower ttings or consumable items we reserve the right to supply
replacement parts only.
The guarantee does not cover:
Call out charges for non product faults (such as damage or performance
issues arising from incorrect installation, improper use, inappropriate
cleaning, lack of maintenance, build up of limescale, frost damage,
chemical attack, corrosion, system debris or blocked lters) or where no
fault has been found with the product.
Water or electrical supply, waste and isolation issues.
Compensation for loss of use of the product or consequential or indirect
loss of any kind.
Damage or defects caused if the product is repaired or modied by persons
not authorised by us or our appointed representative.
Accidental or wilful damage
Products purchased ex-showroom display.
What to do if something goes wrong
If your product does not work correctly refer to this manual for fault diagnosis
and check that it is installed and commissioned in accordance with our
instructions.
If this does not resolve the issue, contact us for help and advice.
Extended Guarantees
A selection of protection plans are available that enable you to cover repair
bills (excludes Eire). Ring 01922 471763 for more details.
Helpdesk Service - Contact our Customer Services Team for
product advice, to purchase spare parts or accessories or to set
up service visit. You can contact us via phone or e-mail - contact
details below. Please provide your model name, power rating (if
applicable) and date of purchase.
Mira Showers Website (www.mirashowers.co.uk)
Visit our website to register your guarantee, download user
guides, diagnose faults, purchase our full range of accessories
and popular spares, or request a service visit.
Spares and Accessories - We hold the largest stocks of genuine
Mira spares and accessories. Contact us for a price or visit our
website to purchase items from our accessory range and popular
spares. (Only available in the United Kingdom).
Service/Repairs - No one knows our products better than our
nationwide team of Service Technicians. We can carry out service
or repair work to your product both during and after the guarantee
period (Only available in the United Kingdom and Republic of
Ireland). Ask about our xed price service repairs.
To Contact Us
0844 571 5000
Fax: 01242 282595
E-mail:
www.mirashowers.co.uk/contactus
Mira Customer Services Dept
Cromwell Road, Cheltenham,
Gloucestershire
GL52 5EP
To Contact Us: Eire Only
01 531 9337
E-mail:
CustomerServiceEire@mirashowers.com
Mira is a registered trade mark of
Kohler Mira Limited.
The company reserves the right to alter
product specications without notice.
1224544-W2-A
FM 14648
© Kohler Mira Limited, March 2014
Mira Vie
8.5 and 9.5 kW Electric Shower
Mira Go
8.5 and 9.5 kW Electric Shower
For SPARES, ADVICE
or REPAIRS
Please call us on
0844 571 5000
(UK Only)
These instructions must be left with the user
Installation Guide
INTRODUCTION IMPORTANT SAFETY INFORMATION
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 electronic format on our website or by contacting
customer services.
This product has separate controls for power selection and
for temperature/ow adjustment. A unique ow regulator
stabilises any temperature changes caused by water pressure
uctuations, which can result from taps being turned on or off
or toilets being ushed.
Electrical and electronic devices contain a range of
materials that can be separated for recycling and
used in new products.
This shower should not be disposed of with your general
household waste. When this shower has reached the end of
its serviceable life please 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 collection facility.
Mira Electric Showers covered by this guide:
Product kW Model Number Colour
Mira Vie
Mira Go
8.5 J08 Ab
9.5 J08 Bb
8.5 J08 Aa
9.5 J08 Ba
White / Chrome
Guarantee
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.
Recommended Usage
Domestic
Light Commercial
Heavy Commercial
Healthcare
Patents and Design Registration
Design Registration: 001375497-0001
Patents: GB 2 427 460
Ireland 85912
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK
OR INJURY PLEASE READ THE IMPORTANT
SAFETY INFORMATION AND THE INSTALLATION
REQUIREMENTS DETAILED IN THIS GUIDE
BEFORE INSTALLING THE SHOWER.
WARNING - This shower can deliver scalding temperatures
if not operated, installed or maintained in accordance with
the instructions, warnings and cautions contained in this
guide and on, or inside the appliance.
1. Installation of this shower must be carried out in
accordance with these instructions by qualified,
competent personnel.
2. 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.
3. DO NOT install the shower in areas with high humidity
and temperature (i.e. steam rooms and saunas).
4. DO NOT install the shower where it may be exposed to
freezing conditions. Ensure that any pipework that could
become frozen is properly insulated.
5. DO NOT switch the shower on if there is a possibility that
the water in the shower is frozen.
6. DO NOT switch the shower on if water starts leaking
from the shower case. Isolate the electrical supply to the
shower immediately.
7. DO NOT connect the outlet of the shower to any tap,
control valve, trigger handset or showerhead other than
those specied for use with this shower. Only Kohler Mira
recommended accessories should be used.
8. 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.
9. DO NOT perform any unspecied modications to the
shower or its accessories. When servicing only use
genuine Kohler Mira replacement parts.
10. If the shower is dismantled during installation or servicing
then upon completion the product must be inspected to
ensure all electrical connections are tight and that there
are no leaks.
11. Read all installation instructions before installing this
shower.
12. Upon completion of the installation, make sure that the
user is familiar with the operation of the shower, and
leave this guide and the user guide with the owner.
SPECIFICATION
Dimensions
Height 329 mm
Width 220 mm
Depth 101 mm
Plumbing
Min Dynamic Pressure 70 kPa (0.7 bar) 70 kPa (0.7 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 / Pusht Coupling
Max Water Hardness 200 ppm CaCO
Outlet Connection 1/2” BSP Male
Variant
8.5 9.5
3
Electrical
Nominal Power at 240 V ac 8.5 kW 9.5 kW
Nominal Power at 230 V ac 7.8 kW 8.7 kW
Recommended MCB Rating 40 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
Appliance Sealing Rating IP X4 - Suitable for installation in
Max Ambient Temperature 30°C
Min Ambient Temperature 2°C
Variant
8.5 9.5
separation
Zone 1
European Conformity Information
This range of electric showers complies with the following
European directives:
2006/95/EC Low Voltage Directive, 2004/108/EC EMC
Directive, 2011/65/EU RoHS Directive
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 conrm if the electrical
supply is adequate.
This range of showers complies with the requirements of the
UK’s water regulations.
PACK CONTENTS
1 x Shower Fittings
1 x Electric Shower
1x Showerhead
1x Hose
1 x Component Pack
Documentation
1 x Guarantee Brochure
1 x Installation Guide
1 x Installation Template (printed on
the inside of product carton)
1 x User Guide
INSTALLATION REQUIREMENTS
PLUMBING
1. The plumbing installation must comply with all national
or local water regulations and all relevant building
regulations, or any particular regulation or practice
specied by the local water supply company.
2. Do not install the product in a position in which service
access is limited.
3. Decide on a suitable position for the shower (minimum
distance of 200 mm from the ceiling to allow for cover t
and removal).
4. 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.
5. The shower must be tted to a waterproof at and even
wall surface.
6. DO NOT t the shower to the wall and tile up to the case.
7. DO NOT seal the gap between the shower and the wall
surface.
8. The showerhead should be positioned so that it
discharges down the centre line of the bath or across
the opening of a shower cubicle.
9. The showerhead must be directed away from the shower
unit, during normal use the showerhead must not spray
directly on to the shower unit.
10. 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.
11. 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 backow 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 checkvalve
must be tted, this will increase the required supply pressure
typically by 10kPa (0.1 bar). Double checkvalves tted in the
inlet supply to the appliance cause a pressure build up, which
affect the maximum static inlet pressure for the appliance and
must not be tted. For Fluid category 5 double checkvalves
are not suitable.
Electric
Shower
Toilet or Bidet
30 mm
Minimum
FC5
25 mm Minimum
Bath or Shower
Tray FC3
Hand Basin
Zone of
Backow Risk
25 mm
Minimum
FC3
Hose retaining ring tted and shower ttings xed at a
suitable height preventing dirty water backow.
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.
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 specied 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
INSTALLATION
Warning! Isolate the electrical and water supplies before
installing the shower.
Use the Installation Template provided (printed on the
1
product carton), together with a spirit level to mark the
positions of the three xing holes.
Note! The shower should be positioned at least
200 mm from the ceiling. Ensure that there are
sufcient lengths of supply pipe and electrical cable to
reach the connection points as shown on the template.
Drill three holes to suit the xing screws and wall
2
plugs.
Caution! Do not drill into cables or pipes in the wall.
3
Screws
Remove the three screws
that hold the cover on
and remove the cover.
Cover
Determine the direction and route of the incoming
4
water supply:
Screw
Falling
(entering the shower
from the top).
Rising
(entering the shower
from the bottom).
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.
Thoroughly ush the supply pipe.
5
Secure the shower to the wall with xing screws and
6
wall plugs (supplied) or appropriate wall xings for
your installation.
7
Inlet
Connector
Pusht
Elbow
Inlet
Supply
Connect the inlet supply
pipe to the inlet connector
using a push t elbow or
an elbow with compression
nuts and olives.
Turn on the water supply
and check connection for
leaks.
8
Strip back sufcient outer
cable insulation to enable
routing to terminal block.
Insert the wires into the
terminal block.
Tighten the screws in the
terminal block, ensure the
wires are secure and tight.
Ensure the earth bonding complies with relevant regulations.
L (Live) = Brown wire
(Protective Earth) = Green / Yellow sleeved wire
N (Neutral) = Blue wire
9
Thinned
Section
10
Cover
Do not seal around the back of appliance.
Install the shower ttings (Refer to the Shower
11
Fittings Installation and User Guide packed with the
product).
The shower must be commissioned before use,
12
please refer to section: ‘COMMISSIONING’.
This completes the installation.
13
Screws
Screw
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.
Ensure the control dials
are aligned with the
spindles and replace the
cover.
Tighten the three cover
screws.
Do not use alternative
screws to secure the
cover. This can cause
internal damage to the
appliance.
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