Mira Advance User manual

1
1306246-W2-A
Installation Guide
These instructions must be left with the user
THERMOSTATIC
ELECTRIC SHOWER
Mira Advance
8.7 and 9.8 kW

2
1306246-W2-A
If you experience any difculty with the installation or operation of your new
Advance Thermostatic Electric Shower, then please refer to 'Fault Diagnosis',
before contacting Mira Showers. Our contact details can be found on the back
cover of this guide.
Product Variant
Adjustable
Temperature
Limit
Extended
Lever
Control
Drain Pump
Compatible Model No.
Standard
8.7 kW    J09A
9.8 kW    J09D
Flex
8.7 kW    J09G
9.8 kW    J09K
Flex Extra 8.7 kW    J09N
Introduction
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.
Domestic Light Commercial 
Heavy Commercial Healthcare 
Recommended Usage
Products Covered
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 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.
The Bluetooth® word mark and logos are registered trademarks owned by the
Bluetooth SIG, Inc. and any use of such marks by Kohler Mira Ltd is under license.
Other trademarks and trade names are those of their respective owners.

3
1306246-W2-A
Important Safety Information
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK OR INJURY:
1. 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.
2. Isolate the electrical and water supplies before commencing
installation. The electricity must be isolated at the consumer unit.
Mains connections are exposed when the shower 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 water leaks from the shower unit.
Isolate the electrical supply to the shower immediately.
6. DO NOT switch the shower on if the case appears to be damaged
or incorrectly tted. Isolate the electrical supply to the shower
immediately.
7. DO NOT switch the shower on if there is a possibility that the water
in the shower unit or ttings is frozen.
For continued safe operation, follow all instructions,
warnings and cautions contained in this guide and on the
shower unit. Failure to follow the instructions provided
with the shower will invalidate the guarantee.
Guarantee
For domestic installations, Mira Showers guarantee the Mira Advance against
any defect in materials or workmanship for a period of two years from the date of
purchase (shower ttings for one year).
For non-domestic installations, Mira Showers guarantee the Mira Advance against any
defect in materials or workmanship for a period of one year from the date of purchase.
For Terms and Conditions refer to the back cover of this guide.

4
1306246-W2-A
8. DO NOT connect the outlet of the shower to any tap, control valve,
trigger handset or other device intended to restrict the water outlet
ow. Fit only the Kohler Mira showerhead as supplied with this
product, only Kohler Mira recommended accessories must be used.
9. DO NOT perform any unspecied modications, drill or cut holes
in the shower or ttings other than instructed by this guide. When
servicing only use genuine Kohler Mira replacement parts.
10.ALWAYS make sure that all electrical connections are tight and
that there are no leaks after installation.
11. DO NOT run the shower with the lter removed.
12.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.

5
1306246-W2-A
Pack Contents
Tick the appropriate boxes to familiarise yourself with the part names and to conrm
that the parts are included.
1 x Compression Nut
2 x Fixing Screws
2 x Wall Plugs
1 x Cover Insert
1 x Olive
OR
1 x Installation Guide
1 x User Guide
1 x Guarantee Card
1 x Mira Advance Standard 1 x Mira Advance Flex or Flex Extra
(Instantmatch by Whale® Pump supplied separately)
Documentation
1 x Quick Start Guide
1 x Installation Template

6
1306246-W2-A
Specications
Plumbing Supply
Supply Source Mains pressure cold water only
Minimum Dynamic Pressure* 50 kPa (0.5 bar)
(100 kPa (1 bar) BEAB Care)
Maximum Dynamic Pressure 500 kPa (5.0 bar)
Maximum Static Pressure 1000 kPa (10 bar)
Minimum Static Pressure** 20 kPa (0.2 bar)
Maximum Inlet Temperature 30°C (20°C BEAB Care)
Minimum Inlet Temperature 2°C (5°C BEAB Care)
Inlet Connection ½" BSP male & 15 mm compression
tting.
Outlet Connection ½" BSP male fitting
Electrical Supply
Nominal Rating at 230 V 8.0 kW 9.0 kW
Nominal Rating at 240 V 8.7 kW 9.8 kW
Supply Fuse/Circuit Breaker 8.7 kW 40 Amps
9.8 kW 45 Amps
Residual Current Device RCD 30 mA
Supply Cable
No larger than 16 mm²
Note: Refer to current IEE regulations and
BS 7671 to determine minimum cable size.
Isolation Switch 45 Amp Double pole, with 3 mm contact
separation.
Maximum Ambient Temperature 30°C
Minimum Ambient Temperature 2°C
Dimensions (shower unit)
Height 408 mm
Width 187 mm
Depth Flex : 112 mm , Standard : 105mm
* Recommended dynamic pressure of 100 kPa (1.0 bar) for full ow performance.
** Static pressure must never fall below 20 kPa (0.2 bar) when other draw offs are in use,
e.g. ushing toilet. This is the minimum pressure required to keep the ow valve closed.

7
1306246-W2-A
Eco-design / Energy Labelling
Decommissioning and Recycling
When these products reach the end of their serviceable life, if they are not being
replaced they should be decommissioned by qualied, competent personnel, and
the electrical and water installation made safe.
These products should not be disposed of with general household waste. They
should be taken 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.
Product Information
Indicative annual electricity consumption (kWh), based upon 2100 Wh daily water
energy demand. Actual electricity consumption will depend on kW rating and the
duration and frequency of use.
8.7 kW 9.8 kW
Load Prole XS XS
Efciency Class A A
Efciency (%) 39.2 39.2
Daily Electricity Consumption (kWh) 2.159 2.157
Annual Electricity Consumption (kWh) 471 471
Sound Power Level (dB) 15 15

8
1306246-W2-A
Patents and Design Registration
Design Registration: 000738141: 0003, 0006, 0007, 0009
Patents: GB: 2269466, 2270370, 2298478, 2298479, 2298481,
2289323, 2359339.
Ireland: 80655, 83692.
6.0 mm
Tools Required
Installation Requirements
General
We recommend that the product be brought into the room where it is to be installed
and left to acclimatise to room temperature, this will reduce the possibility of
condensation on electronic components.
The shower works best when water supply conditions are stable and within the
specications, refer to section 'Specications'. If the supply conditions fall outside
the specications, the shower may go into a safe shut down condition.
DO NOT connect the outlet of the shower to any tap, on/off control valve, trigger
operated showerhead or any other showerhead other than those specied for use
with this shower. This could cause scalding or severe damage to the product and
will invalidate the guarantee. Only Kohler Mira recommended showerheads, shower
hoses and accessories must be used.
Hereby, Kohler Mira Ltd. declares that the radio equipment type Mira Advance
Flex Extra (J09N) is in compliance with Directive 2014/53/EU. The full text of
the EU declaration of conformity is available at the following internet address:
www.mirashowers.co.uk.
The Mira Advance Flex Extra (J09N) operates in the 2.4 GHz frequency band at a
maximum radio frequency power of +4 dBm.
Standards and Approvals
The Mira Advance complies with the requirements of the BEAB Care Mark Standard
and the relevant directives for CE marking. The BEAB Care mark is invalid if the
product is not installed and used in accordance with the manufacturer’s specications
and instructions.

9
1306246-W2-A
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.
Route cable and pipe supplies via the cut outs moulded in the case and cover.
DO NOT perform any unspecied modications to the shower or its accessories.
Drilling xing holes or making water or electrical entry points outside of the showers
designed areas can lead to uncontrolled water ingress. This could cause re,
electrocution or damage to the product and will invalidate the product guarantee.
When servicing only use genuine Kohler Mira replacement parts.
DO NOT increase the size or cut alternative pipe / cable entry points as water ingress
into the product may occur.
Plumbing
Refer to section: ‘Important Safety Information’ rst.
1. Do not use sealing compounds on any pipe tting or joints.
2. To avoid damage to the case when soldered ttings are used, pre-solder the
pipework and ttings before connecting them to the inlet connector assembly.
3. Never t the appliance to hot water supplies or to gravity systems of any
description. Only t the product to a mains cold water pipe.
4. If the pressure exceeds the maximum specied then a drop tight pressure
reducing valve (PRV) must be tted. This should be sited as close to the incoming
mains stopcock and ideally set to 3.5 bar.
5. Avoid layouts where the shower hose will be sharply kinked. This may reduce
the life of the hose.
6. Supply pipework MUST be ushed to clear debris before connecting the
appliance. Debris will reduce the performance of the shower and may damage
the product. Avoid running the pipework through excessively hot or cold areas
such as hot loft spaces, airing cupboards, or in close proximity to hot water pipes.
If this cannot be avoided, we recommend insulating the pipes.
7. The shower must be tted onto a tiled or sealed nished surface i.e. on top of
tiles. DO NOT tile up to the sides of the shower or use a sealant around the
case. Failure to do this may cause appliance failure. To ensure the case and
other components are not put under strain during installation always provide
mechanical support when making plumbing connections. Upon completion of
the installation ensure connections and back case are not under any stress due
to misaligned pipework or electrical cables.
8. We recommend that a non-restrictive (free owing) isolating valve is tted in the
cold water supply pipe to allow maintenance of the appliance.
9. When installed in very hard water areas (above 200ppm temporary hardness)
your installer may advise the installation of a water treatment device, to reduce
the effects of limescale formation. Any malfunction due to limescale is not covered
by the manufacturer’s guarantee. Your local water company will be able to advise
the hardness of water in your area.

10
1306246-W2-A
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 fitted and shower fittings fixed
at a suitable height preventing dirty water backflow.
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 check valves 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 check valves are not suitable.
10. Wall xings are supplied for solid wall structures. For other wall structures such
as wall panels alternative xings may be required. A minimum of 2 xing screws
must be used.
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 backow
risk.
Refer to section: ‘Important Safety Information’ rst.
1. In a domestic installation, the rating of the electricity supplier’s fuse and the
consumer unit must be adequate for the additional demand. All Mira Advance
electric showers are high power appliances. Voltage drop due to local heavy
demand will reduce the shower’s performance.
Electrical

11
1306246-W2-A
Electrical Schematic Diagram
Consumer Unit
Double Pole
Isolating Switch
Shower
Unit
2. The appliance must be earthed by connecting the supply-cable earth conductor
to the earth terminal. Any supplementary bonding and supply cable size must
conform to BS 7671.
3. As a guide only, and in accordance with BS 7671 we recommend close
circuit protection:
i.e. 8.7 kW = 40 Amp
9.8 kW = 45 Amp
4. For new installations a 30 mA Residual Current Device (RCD) must be
incorporated into the electrical supply to the shower in accordance with the current
wiring regulations. When replacing an existing electric shower we recommend
that a 30 mA RCD is incorporated in accordance with current wiring regulations
if not already provided.
5. A separate, permanently connected supply must taken from the consumer unit
to the appliance through a double-pole switch, which has at least 3 mm contact
separation. The switch can be a ceiling mounted pullcord type within the shower
room or a wall mounted switch in the applicable zone area.
6. DO NOT exert strain on the terminal block. Make sure that the electrical
connections are tightly screwed down.
7. DO NOT turn on the electrical supply until the plumbing has been completed.
8. Unless otherwise stated, electrical equipment such as extractor fans, pumps
must not be connected via this product.

12
1306246-W2-A
CONTROL BOARD PART
OF THE COVER ASSEMBLY
GREY A
BLUE A
BROWN A
GREEN B
TERMINAL BLOCK
RELAY PCBA
BLACK A
INLET CONNECTOR ASSEMBLY
FLOW VALVE ASSEMBLY
N L
GREEN A
BLACK B BLACK D
BLACK C
TANK ASSEMBLY
RED A
BROWN B
Shower Unit Wiring Diagram - Standard and Flex Product Only

13
1306246-W2-A
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 100 mm around the shower unit to allow for cover removal and retting.
See “Installation - Plumbing” for further details.
Note! If installation includes an Instantmatch by Whale® drain pump, see “Bluetooth”
section for information on position of wireless devices.
Installation
DO NOT drill through the shower unit into the wall.
DO NOT drill into buried cables or pipes.

14
1306246-W2-A
1 2
Remove the cover screw. Remove the cover, the service tunnel and the bungs.
Determine the cable and pipe supply either top or
bottom or rear connection.
Turn the inlet connector to suit supply
pipe. Do not trap the green wire.
Complete any soldering required away
from the appliance.
3 4

15
1306246-W2-A
THERMOSTATIC
ELECTRIC SHOWER
Mira Advance
8.7 and 9.8 kW
Kohler Mira Limited, July 2017
Installation Template
1327483-W7-A
Optional
Hole
Bottom
Fixing Hole
Bottom
Fixing Hole
Optional
Hole
Optional
Hole
Top Fixing
Hole
Optional
Hole
Inlet
Connector
Electrical
Connections
Outlet
Connector
Place Spirit Level on This Line
to Level Product Before Drilling
This Installation Template is compatible with
the following Mira Advance Electric Showers:
Standard 8.7 and 9.8 kW
Flex 8.7 and 8.9 kW
Flex Extra 8.7 kW
DO NOT ush through the product by removing the inlet lter. Debris may damage
the product and invalidate the guarantee.
Flush the pipework for approximately 1 minute prior to connection.
1 Min
DO NOT
REMOVE TO
FLUSH THE
PRODUCT
5
6
Use the installation template provided to mark and drill the required xing holes. Do
not drill through the shower unit into the wall. Plaster and brick dust will damage the
internal components of the product.
Note! Make sure that you mark a minimum of two xing holes, one at the top and
one at the bottom.

16
1306246-W2-A
Connect the hose pointing into the bath
or tray.
Note! Make sure that the hose washer
is tted.
DO NOT t the shower head at this stage.
Connect supply pipe, then turn the water
supply on and check the shower unit for
leaks. DO NOT overtighten.
9
Drill the xing holes through the plastic case in the designated areas as required.
Route the signal cable to the shower drain pump (if applicable).
Fix the appliance to the wall.
Use appropriate screws and wall plugs for xing.
Note! Make sure that the product is securely xed to the wall.
8
7

17
1306246-W2-A
10
11
Important! Priming the Shower
12
Feed the electrical cable into the case.
Firmly connect the conductors. DO NOT
exert strain on the terminal block.
N = Blue or Black
= Green or Yellow/Green
L = Brown or Red
NL
Ret the service tunnel.
Important! Refer to set up before
tting the front cover.
Make sure that the electrical
supply is isolated!
To prime the appliance, push down
and hold the air bleed button until
water flows from the hose for a
minimum of 10 seconds. Repeat
this procedure 3 times.
Failure to prime the appliance
will seriously affect the shower
performance!
Note! Water will leak from bleed
button.
Carefully dry off water before
connecting / reinstating the
electrical supply.

18
1306246-W2-A
13
Factory setting with all switches in the off position at maximum temperature of 48° C.
Please refer below for examples of settings.
Maximum Temperature/BEAB/Eco (6 L/Min)
Factory Setting 48° C
43° CBeab 41° C
45° C Eco
Setup
12345678
BEAB
OFF ON
43 DEG C
45 DEG C
RESERVED
6L/MIN
PUMP LK3
PUMP LK2
PUMP LK1
12345678
BEAB
OFF ON
43 DEG C
45 DEG C
RESERVED
6L/MIN
PUMP LK3
PUMP LK2
PUMP LK1
12345678
BEAB
OFF ON
43 DEG C
45 DEG C
RESERVED
6L/MIN
PUMP LK3
PUMP LK2
PUMP LK1
12345678
BEAB
OFF ON
43 DEG C
45 DEG C
RESERVED
6L/MIN
PUMP LK3
PUMP LK2
PUMP LK1
12345678
BEAB
OFF ON
43 DEG C
45 DEG C
RESERVED
6L/MIN
PUMP LK3
PUMP LK2
PUMP LK1
You must set the product up to ensure it operates correctly for the users requirements.
12345678
BEABON/OFF
ON
43DEG C
45DEG C
RESERVED
6L/MIN
PUMPLK3
PUMPLK2
PUMPLK1
Rear of Cover
12345678
BEAB ON/OFF
ON
43 DEG C
45 DEG C
RESERVED
6L/MIN
PUMP LK3
PUMP LK2
PUMP LK1
BEAB and Eco mode cannot be used together, if both modes are selected the shower
will operate in BEAB mode and the Eco switch will not have any affect.

19
1306246-W2-A
12345678
BEABON/OFF
ON
43DEG C
45DEG C
RESERVED
6L/MIN
PUMPLK3
PUMPLK2
PUMPLK1
Mira Advance Flex Extra (J09N) for use with the Instantmatch by
Whale® Digital Pump
Instant Match Bluetooth Transformer
SDS236T (755.678)
Note! Suitable Bluetooth transformer can
be identied by blue start/stop button.
LK2 Set to ON
Jumper Settings for Bluetooth Pairing
48º C Factory setting &
Bluetooth transformer connection
1 2 3 4 5 6 7 10 30 60 1 2
Flex Extra J09N
12345678
BEAB
OFF ON
43 DEG C
45 DEG C
RESERVED
6L/MIN
PUMP LK3
PUMP LK2
PUMP LK1
1 2 3 4 5 6 7 10 30 60 12
Bluetooth Setup
Please refer to ‘Bluetooth Pairing’ to link the shower to
the ‘Whale’ bluetooth transformer (SDS236T - 755.678)
The bluetooth operation of the Advance Flex Extra (J09N)
will only work with a Whale bluetooth transformer. Pre-
vious Whale RF wireless transformers will not connect
to the bluetooth Advance.
Important Information Regarding Bluetooth Range!
Correct operation of the shower and pump relies on the strength of the bluetooth signal between
them. You must install the Whale Pump and Bluetooth transformer as advised in the Whale
Instantmatch installation guide. Failure to do so may cause the shower & pump not to pair or
go into an error mode resulting in intermittent or complete failure to operate.
For retrot installations where a Whale Bluetooth transformer is tted in place of a RF wireless
transformer then testing for correct operation must be carried out before nal install.
Note! Metal objects such as steel baths, sinks, foil lined plaster board or solid walls can
reduce the operational range. Where a Bluetooth signal cannot be established the pump and
shower should be hardwired.

20
1306246-W2-A
1 2 3 4 5 6 7 10 30 60 12
12345678
BEABON/OFF
ON
43DEG C
45DEG C
RESERVED
6L/MIN
PUMPLK3
PUMPLK2
PUMPLK1
1 2 3 4 5 6 7 10 30 60 1 2
Flex Extra J09N
Mira Advance Flex Extra (J09N) for use with the Instantmatch by
Whale® Digital Pump
Whale Instant Match Transformer
SDS236T (755.678), SDS233T (755.617)
SDS135T (755.649)
Jumper Settings and Cable Connection
12345678
BEAB
OFF ON
43 DEG C
45 DEG C
RESERVED
6L/MIN
PUMP LK3
PUMP LK2
PUMP LK1
Hardwired Connection
LK1 Set ON or OFF depending
which wired transformer used,
see transformer table
If you are exchanging this Advance for a previous model (J97) that is using a pump
driver board.
1. Remove and discard the driver board and its ribbon cable connections.
2. Cut the connector block off the end of the 2 wires coming into the shower from
the waste pump.
3. Connect the two wires to the small terminal block on the relay PCB (as shown).
For new hard wired installations many waste pump manufacturers supply the cable
to connect from the shower to the waste pump. If the cable is not supplied then Mira
can supply a 4m length cable (part number 1759.125) This should be installed and
connected as detailed.
Brown Black Red