Kohler Mira Atom ERD Operation manual

11232447-W2-A
Mira Atom ERD
With Moxie
These instructions must be left with the user
Installation & User Guide
For SPARES, ADVICE
or REPAIRS
Please call us on
0844 571 5000
(UK Only)

2
1232447-W2-A
SAFETY : WARNINGS
WARNING - This product can deliver scalding temperatures if not operated, installed
or maintained in accordance with the instructions, warnings and cautions contained
in this guide.
The function of a thermostatic mixing valve is to deliver water consistently at a safe temperature.
In keeping with every other mechanism, it cannot be considered as functionally infallible and
as such, cannot totally replace a supervisor’s vigilance where that is necessary. Provided it is
installed, commissioned, operated and maintained within manufacturers recommendations,
the risk of failure, if not eliminated, is reduced to the minimum achievable.
INTRODUCTION
For domestic installations, Mira Showers guarantee the Mira Atom against any defect in
materials or workmanship for a period of ve years from the date of purchase (shower ttings
and Moxie speaker for one year).
For non-domestic installations, Mira Showers guarantee the Mira Atom 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.
Recommended Usage
Domestic 
Light Commercial 
Heavy Commercial 
Healthcare 
Thank you for purchasing a quality Mira product. To enjoy the full potential of your new
product, please take time to read this guide thoroughly, having done so, keep it handy for
future reference.
GUARANTEE
DESIGN REGISTRATION AND PATENTS
Design Registration GB 001225254-0003
Patents: GB 2 407 138
RECOMMENDED USAGE

31232447-W2-A
WARNING - This product can deliver scalding temperatures if not operated, installed
or maintained in accordance with the instructions, warnings and cautions contained
in this guide.
The function of a thermostatic mixing valve is to deliver water consistently at a safe temperature.
In keeping with every other mechanism, it cannot be considered as functionally infallible and
as such, cannot totally replace a supervisor’s vigilance where that is necessary. Provided it is
installed, commissioned, operated and maintained within manufacturers recommendations,
the risk of failure, if not eliminated, is reduced to the minimum achievable.
Mira thermostatic mixers are precision engineered and should give continued safe and
controlled performance, provided:
1. They are installed, commissioned, operated and maintained in accordance with the
manufacturer’s recommendations.
2. Periodic attention is given, when necessary, to maintain the product in good functional
order.
Caution!
1. Read all of these instructions and retain this guide for later use.
2. Installation must be carried out in accordance with these instructions, and must be
conducted by designated, qualied and competent personnel.
3. Pass on this guide in the event of change of ownership of the installation site.
4. Follow all warnings, cautions and instructions contained in this guide.
5. Make sure that you fully understand how to operate this shower before use, read all
operating instructions and retain this guide for future reference.
6. This product is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have
been given supervision or instruction concerning the use of the product by a person
responsible for their safety.
7. Children should be supervised to ensure that they do not play with the product.
8. DO NOT perform any unspecied modications to the shower or its accessories. When
servicing only use genuine Kohler Mira replacement parts.
9. DO NOT t any form of outlet ow control. Only Mira recommended outlet ttings should
be used.
10. DO NOT operate the temperature control rapidly, allow 10 – 15 seconds for the
temperature to stabilise before use.
11. Care is required when adjusting ow or temperature, make sure that the temperature
has stabilised.
12. Care is required if the product is turned off and back on during showering as this may
result in unstable temperature. Ensure temperature has stabilised before re-using
product.
13. Sunburn or skin conditions can increase your sensitivity to hot water. Make sure that
you set the shower to a cooler temperature.
14. 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.
15. When this product 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.

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1232447-W2-A
SPECIFICATIONS
Bar Valve Specication
18. This device is rated to IPX4.
19. Check local regulations for proper disposal.
20. DO NOT submerge the wireless speaker.
21. DO NOT spray water directly into the speaker.
22. The wireless speaker and battery are rated to operate in temperatures up to 140°F
(60°C). DO NOT expose to heat sources or install in any location where the temperature
may exceed 140°F (60°C).
23. DO NOT expose batteries to sunlight, re or other forms of excessive heat.
The BLUETOOTH®word mark and logos are registered trademarks owned by Bluetooth
SIG, Inc. and any use of such marks by Kohler Co. is under license. Other trademarks
and trade names are those of their respective owners.
CE Radiation Exposure Statement for Mobile Devices
This equipment complies with CE radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with a minimum distance
of 200 mm between the radiator and your body. The transmitter must not be co-located or
operating in conjunction with any other antenna or transmitter.
Pressures
Maximum Static Pressure 10 Bar
Maximum Maintained Pressure 5 Bar
Minimum Maintained Pressure (Gas Water
Heater)
1.0 Bar (for optimum performance supplies should be
nominally equal)
Minimum Maintained Pressure (Gravity
System)
0.1 Bar (0.1 bar = 1 Metre head from cold tank base to
shower handset outlet)
Connections
Hot - Left 1/2" BSP to pipework, 3/4" BSP to valve
Cold - Right 1/2" BSP to pipework, 3/4" BSP to valve
Outlet - Bottom 1/2" BSP Male to exible hose
Note! This product does not allow for reversed inlets and will deliver unstable temperatures if tted
incorrectly.
Thermostatic Shut-down
For safety and comfort the thermostat will shut off the mixing valve within 2 Seconds if either supply
fails (achieved only if the blend temperature has a minimum differential of 12°C from either supply
temperature).
Temperatures
Close temperature control is provided
between
20°C and 50°C
Optimum Thermostatic Control Range 35°C to 45°C (achieved with supplies of 15°C cold, 65°C
hot and nominally equal pressures).
16. This wireless speaker complies with CE directives.
17. To play your personal music les, you need a wireless
BLUETOOTH® device.

51232447-W2-A
Operating Temperature 0°C - 60°C
Maximum Relative Humidity 100% condensing
USB Cable Length 1 m
Output Power 1.5 Watts into 4 Ohms
Total Harmonic Distortion <1% at 1 kHz full output power
BLUETOOTH®wireless range 10 m
Battery Charge Time 7 hours
Play Time* 7 hours
Charge Voltage USB 5 V
*Actual battery life will vary with use,settings and environmental conditions. Rechargeable batteries
have a limited number of charge cycles.
Recommended Hot Supply 0°C to 65°C (Note! The mixing valve can operate at
temperatures up to 85°C for short periods without damage.
However for safety reasons it is recommended that the
maximum hot water temperature is limited to 65°C).
Minimum Recommended Differential
between Hot Supply and Outlet
Temperature
12°C at desired ow rates.
Minimum hot water supply temperature 55°C.
Wireless Speaker Specication
INSTALLATION
Gravity Fed:
The thermostatic mixer must be fed from a cold water cistern (usually tted in the loft space) and
a hot water cylinder (usually tted in the airing cupboard) providing nominally equal pressures.
Gas Heated System:
The thermostatic mixer can be installed with a combination boiler.
Unvented Mains Pressure System:
The thermostatic mixer can be installed with an unvented, stored hot water system.
Mains Pressurised Instantaneous Hot Water System:
The thermostatic mixer can be installed with systems of this type with balanced pressures.
Pumped System:
The thermostatic mixer can be installed with an inlet pump (twin impeller). The pump must
be installed on the oor next to the hot water cylinder.
Suitable Plumbing Systems