Mira Coda Installation & User Manual
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These instructions must be left with the user.
Installation & User Guide
MIRA CODA
THERMOSTATIC BAR VALVE
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CONTENTS
Introduction .............................................................................................3
Patents ................................................................................................. 3
Safety : Warnings .................................................................................... 4
Pack Contents .........................................................................................5
Specications ..........................................................................................6
Pressures ............................................................................................. 6
Temperatures .......................................................................................6
Thermostatic Shut-down ......................................................................6
Connections .........................................................................................6
Dimensions ..............................................................................................7
Installation ...............................................................................................8
Suitable Plumbing Systems ..................................................................8
General .................................................................................................8
Solid Wall Installation ......................................................................... 10
Stud Partition, Laminated Panel,
or Unxed Rear-entry Pipework Installation ...............................12
Commissioning .....................................................................................14
Maximum Temperature Setting ..........................................................14
Operation ...............................................................................................15
Adjusting the Temperature .................................................................15
Adjusting the Flow .............................................................................. 15
Maintenance ........................................................................................... 16
Fault Diagnosis ...................................................................................16
Lubricants ...........................................................................................17
Cleaning ............................................................................................. 17
Maintaining the Non-Return Valves ....................................................17
Spare Parts ............................................................................................18
Notes ......................................................................................................19
Customer Service ....................................................................Back Page
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INTRODUCTION
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.
The Mira Coda thermostatic bar valve is a shower control designed for wall mount
installations.
The thermostatic bar valve has two knobs, one knob controls the ow and the other
knob controls the temperature.
The thermostatic bar valve incorporates a wax capsule temperature sensing
unit, which provides an almost immediate response to changes in pressures or
temperature of the incoming water supplies, to maintain the selected temperature.
An adjustable maximum temperature stop is provided which limits the temperature
to a safe level. Inlet lters are tted to protect the thermostatic cartridge.
Patents
Patent GB 2 407 138
If you experience any difculty with the installation or operation of your new
Thermostatic Mixer, please refer to ‘Fault Diagnosis’, before contacting Kohler
Mira Ltd. Our contact details can be found on the back cover of this guide.
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SAFETY : WARNINGS
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.
2. Retain this guide for later use.
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. Anyone who may have difculty understanding or operating the controls of any
shower should be attended whilst showering. Particular consideration should
be given to the young, the elderly, the inrm or anyone inexperienced in the
correct operation of the controls.
6. 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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PACK CONTENTS
Tick the appropriate boxes to familiarise yourself with the part names and to conrm
that the parts are included.
Documentation
q 1 x Guarantee Registration Document
q 1 x Mira Coda Bar Valve
q 2 x Inlet Connectors
q 2 x Concealing Plates
q 2 x Wall Mounting Brackets
q 2 x Washers / Filters
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SPECIFICATIONS
Pressures
Max Static Pressure: • 10 Bar.
Max Maintained Pressure: • 5 Bar.
Min Maintained Pressure: (Gas Water Heater): • 1.0 Bar. (for optimum
performance supplies should be nominally equal.)
Min Maintained Pressure (Gravity System): • 0.1 Bar. (0.1 bar = 1 Metre head
from cold tank base to shower handset outlet.)
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.)
Recommended Hot Supply: • 60°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 Differential between Hot Supply and Outlet Temperature: • 10°C.
Cold Water Range: • 5°C - 25°C.
Thermostatic Shut-down
For safety the thermostat will shut off the hot supply • within 2 Seconds if the
cold supply fails. (achieved only if the hot supply temperature is greater than
10°C above the set blend temperature.)
Connections
Hot: Left • (side nearest ow control), ½” BSP Male.
Cold: Right • (side nearest temperature control), ½” BSP Male.
Outlet: Bottom• , ½” BSP Male to exible hose.
Note! This product does not allow for reversed inlets and will deliver unstable
temperatures if tted incorrectly.
Offset connector (inlet centres are 150 mm ± 24 mm).
½" BSP
Connection to Pipework
¾" BSP
Connection to Bar Valve
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