Mira Elite QT, J08J, J08I User Manual
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Installation & User Guide
These instructions must be left with the user
Mira Elite QT 9.8kW / 10.8kW
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Important Safety Information
WARNING! This shower can deliver scalding temperatures. For
continued safe operation, follow all instructions, warnings and
cautions contained in this guide and on or inside the shower unit.
Failure to follow the instructions provided with the shower will
invalidate the guarantee.
PLEASE OBSERVE THE FOLLOWING TO REDUCE THE RISK OF
FIRE, ELECTRIC SHOCK OR INJURY:
INSTALLING THE SHOWER
1. Installation of the shower must be carried out in accordance with
these instructions by qualied, 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
and the appropriate circuit fuse removed, if applicable. 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 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
must be used.
6. DO NOT perform any unspecied modications, drill or cut holes
in the shower or ttings other than instructed by this guide. When
servicing only use genuine Kohler Mira replacement parts.
7. 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.
USING THE SHOWER
8. The shower must be operated and maintained in accordance with
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the requirements of this guide. Make sure you fully understand
how to operate the shower before use, read all instructions and
retain this guide for future reference.
9. DO NOT switch the shower on if there is a possibility that the
water in the shower unit or ttings is frozen.
10. DO NOT switch the shower on if water leaks from the shower
unit. 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. The shower can be used by children aged from 8 years and above
and persons with reduced physical, sensory or mental capabilities
or lack of experience and knowledge if they have been given
supervision or instruction concerning use of the appliance in a
safe way and understand the hazards involved. Children must
not be allowed to play with the shower.
13. DO NOT allow children to clean or perform any user maintenance
to the shower unit without supervision.
14. Always check the water temperature is safe before entering the
shower.
15. DO NOT increase the power setting or adjust the temperature
control rapidly while using the shower.
16. Use caution when altering the water temperature, always check
the temperature before continuing to shower.
17. DO NOT switch the shower off and back on while standing in
the water ow.
18. DO NOT run the shower with the lter removed.
19. Switch the shower off at the electrical isolating switch when not
in use. This is recommended with all electrical appliances.
20. 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
must be used.
21. The showerhead must be descaled regularly. Any blockage of the
showerhead or hose can cause damage to the shower.
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Introduction
Guarantee
Recommended Usage
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
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.
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.
Mira Electric Showers covered by this guide:
Product kW Model Number Colour
Mira Elite QT
9.8 J08I
White / Chrome
10.8 J08J
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Pack Contents
1 x Shower Unit
2 x Caps
1 x Component Pack
(shower fittings)
2 x Slide Bar Supports
1 x Slide Bar
1 x Hose
1 x Clamp Bracket
1 x Showerhead
2 x Washers
1 x Hose Retaining Ring
1 x Component Pack
(shower unit)
1 x Installation & User Guide
1 x Installation Template (remove from packaging)
1 x Guarantee Card
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Specications
The Mira Elite QT complies with the following European directives:
2006/95/EC Low Voltage Directive, 2004/108/EC EMC Directive, 2011/65/EU RoHS Directive.
The Mira Elite QT is a high power appliance and is 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.
The Mira Elite QT complies with the requirements of the UK’s water regulations.
Design Registration & Patents
Patents: GB 2 289 323, 2 341 667, 2 359 339, 2 427 460, 2 432 201
Ireland: 80655, 82835, 83692
Plumbing
Maximum Static Pressure 100 kPa (1 bar)
Minimum Static Pressure 0.8 kPa (0.008 bar)
Minimum Inlet Temperature 2°C
Maximum Inlet Temperature 30°C
Maximum Water Hardness 200 ppm CaCO
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Inlet
15 mm compression. Adjustable for top, bottom or rear
entry pipework.
Outlet 1/2" BSP Male to exible hose
Electrical
Power Supply
230 - 240 V, 50 Hz
9.8 kW model (230 V = 9.0 kW, 240 V = 9.8 kW)
10.8 kW model (230 V = 9.9 kW, 240 V = 10.8 kW)
Duty Cycle Continuously rated.
Maximum Supply Cable Size 16 mm²
Recommended RCD Rating 30 mA tripping current
Recommended Isolator Switch Double-pole with 3 mm contact separation, 45 A
Recommended MCB Rating 9.8 kW model = 40 A
10.8 kW model = 45 A
Ingress Protection Rating IP X4 - Suitable for installation in Zone 1
Minimum Ambient Temperature 2°C
Maximum Ambient Temperature 30°C
Dimensions (shower unit)
Height 363 mm
Width 270 mm
Depth 110 mm
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Installation
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. The shower is designed to operate with a gravity fed water supply providing a pressure
from 0.8 kPa* (0.008 bar / 80 millimetres head) to 100 kPa (1 bar / 10 metres head,
the vertical distance from the base of the cold water cistern to the top of the shower
unit). The shower must have its own separate supply from the cistern.
DO NOT FIT THE SHOWER TO A MAINS WATER SUPPLY OR WHERE THE
MAXIMUM SPECIFIED PRESSURE MAY BE EXCEEDED!
Failure to comply with these restrictions may result in product damage not covered
by the guarantee.
* Note! In practice the minimum head required will increase with pipe length. See
“Pipework” for further guidance which includes a calculation table to make sure that
adequate head is available for any given installation.
3. DO NOT install the product in a position or location that will
limit access for servicing.
4. A suitable position for the shower will have a minimum clear
distance of 200 mm above and below the shower unit to
allow for cover removal and retting.
5. The position of the shower and shower ttings must provide
a minimum air gap of 25 mm between the showerhead
and the spill over level of any bath, shower tray or basin.
There must be a minimum distance of 30 mm between the
200 mm
200 mm
Incorrect Cistern Take Off
Debris from the bottom of the
cistern and air generated when
the cistern rells will enter the
shower supply.
Correct Cistern Take Off
Positioned away from the ball
valve, with a 25 mm distance
from the base of the cistern.
This connection will prevent
air and debris entering the
shower supply.
To shower
unit only.
25 mm
25 Gallon/113 Ltr Cistern
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showerhead and the spill over lever of any toilet, bidet or other appliance with a Fluid
Category 5 backow risk.
6. The shower is suitable for installation within the shower area. The shower is tted with
an internal pressure relief valve and must be installed over a water catchment area.
7. Position the shower where the controls area at a convenient height for the user.
Position the showerhead so that the water sprays in line with the bath or across the
opening of a shower cubicle. The showerhead must not spray directly onto the shower
unit during normal use. The installation must not cause the shower hose to be kinked
during normal use.
8. The shower must be tted to a waterproof, at and even wall surface. The 3 screws
(No. 8 x 1¼”) and wall plugs supplied are suitable for most solid wall installations. Alternative
xing screws for panel structures are not supplied. Use all 3 xing points to secure the
shower unit, be sure to use xings appropriate for the chosen wall structure.
DO NOT t the shower to the wall and tile up to the case or seal the gap between the
shower and the wall surface with sealant.
9. The shower is intended to be permanently connected to a gravity fed water supply
using the inlet connection supplied as part of the shower unit.
DO NOT use any other type of tting.
10. Use a minimum of 15 mm diameter supply pipework. For long pipe runs, this should
be increased to 22 mm (see “Pipework” for guidance and calculation table). When
using exible plastic pipe it is essential that the pipe is kept at to minimise air build
up in the system.
11. 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.
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 10 kPa (0.1 bar).
Double checkvalves tted
in the inlet supply to the
appliance cause a pressure
build up, which affects the
maximum static inlet pressure
for the appliance and must not
be tted. For Fluid Category
5, double checkvalves are not
suitable.
Zone of
Backflow
Risk
30 mm
Minimum
Toilet or Bidet
FC5
Hand Basin
FC3
Bath or Shower
Tray FC3
Shower
Unit
25 mm
Minimum
25 mm Minimum
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DO NOT use a valve with a loose washer plate (jumper) as this can lead to a build
up of static pressure.
12. The 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 falling supply. We
recommend a falling supply to prevent air lock in the pipework.
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. 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.
15. 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
the guarantee.
16. DO NOT perform the electrical installation until the plumbing has been completed and
checked for leaks.
17. The water supplies to this product should 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.
Pipework
Long pipe runs and excessive use of 90° elbow ttings will signicantly reduce the available
head to supply the shower unit. The pipework table provided should be used to ensure that
an adequate pressure is available for any given application.
Pipework Schematic Diagram
A
B
X
Use the following table to calculate the dimension (x) to give a minimum effective head of
80 mm required to produce a satisfactory shower in all conditions.
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