Mira CODA PRO Manuel d'utilisation
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These instructions must be left with the user.
Installation & User Guide
MIRA CODA PRO
CODA PRO
THERMOSTATIC BAR VALVE
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CONTENTS
Introduction .............................................................................................3
Guarantee ............................................................................................4
Recommended Usage..........................................................................4
Design Registration:.............................................................................4
Patents: ................................................................................................ 4
Safety : Warnings ....................................................................................5
Pack Contents .........................................................................................6
Specications ..........................................................................................7
Pressures ............................................................................................. 7
Temperatures .......................................................................................7
Thermostatic Shut-down ......................................................................7
Connections .........................................................................................7
Dimensions ..............................................................................................9
Installation ...............................................................................................9
Suitable Plumbing Systems..................................................................9
Installation .......................................................................................... 11
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
Customer Service..................................................................................20
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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 Pro thermostatic bar valve is a shower control designed for wall
mountd installations.
The thermostatic bar valve has two knobs, one knob controls the ow and the other
knob controls the temperature.
There is an ECO ow stop to encourage reduced water usage, which can be
overriden.
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 supplied and must be tted to protect the thermostatic
cartridge.
The Mira Coda Pro is supplied complete with an easy, front of wall xing kit which
has been designed to make the installation of bar valves easier and more secure
and has the following benets over traditional ‘Z’ offset connectors:
• 2nd x installation after tiling has been completed
• Water connections are made in front of the nished wall surface
• Bar valve is secured to the wall
• Foam seal to prevent water ingress
• Suitable for any bar valve using 3/4” female threads
• Can be used on plastic barrier pipes (with suitable pipe insert)
If you experience any difculty with the installation or operation of your new
Thermostatic Mixer, please refer to ‘Fault Diagnosis’, before contacting Mira
Showers. Our contact details can be found on the back cover of this guide.
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Guarantee
For domestic installations, Mira Showers guarantee the Mira Coda Pro against
any defect in materials or workmanship for a period of ve years from the date of
purchase (shower ttings for one year).
For non-domestic installations, Mira Showers guarantee the Mira Coda Pro
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
Application Valve with Fittings
Domestic ü
Light Commercial ü
Heavy Commercial û
Healthcare û
Design Registration
GB 001225254-0003
Patents:
GB 2 407 138
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SAFETY : WARNINGS
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.
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:
5.1. The young.
5.2. The elderly.
5.3. The inrm.
5.4. The disabled.
5.5. Anyone who suffers from a medical condition that can result in temporary
incapacity (e.g. epilepsy or blackouts).
5.6. Anyone inexperienced in the correct operation of the controls.
6. Children should be supervised to make sure that they do not play with the
appliance.
7. Care is required when adjusting ow or temperature, make sure that the
temperature has stabilised.
8. 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.
9. 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.
10. Sunburn or skin conditions can increase your sensitivity to hot water. Make
sure that you set the shower to a cooler temperature.
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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
q1 x Guarantee Registration Document
q1 x Mira Coda Bar Valve
Bar Valve Fixing Kit
q2 x Wall Plugs
q2 x Wall Brackets
q2 x Fixing Screws
q2 x Concealing Plates
q2 x Nuts
q2 x Filters
q1 x Plastic Pipe Guide
q1 x Pipe Guide
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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 Recommended Differential between Hot Supply and Outlet
Temperature: 10°C at desired ow rates.
• Cold Water Range: up to 25°C.
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).
Connections
• Hot: Left (side nearest ow control), 15 mm compression.
• Cold: Right (side nearest temperature control), 15 mm compression.
• 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.
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Flow Rates
Pressure (Bar)
0.50 1.00 1.50 2.00 2.50 3.000.0 3.50 4.00 4.50 5.00
0.0
10.0
20.0
30.0
40.0
FLOW RATE
Mira Coda Pro Bar Valve: Handset
Handset
Eco-Flow
Coda Pro
with Handset
Flow Rate (l/min)
50.0
Handset Eco Flow
Coda Pro with Handset
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INSTALLATION
Suitable Plumbing Systems
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). Refer to
Pump Installation and User Guide for more details.
Ø70 mm
150 mm
107 mm
290 mm 85 mm
DIMENSIONS
10
25 mm
Spill Over
Level
Soap Dish/Hose
Retaining Ring
General
Installation must be carried out in accordance with these instructions, and must be
conducted by designated, qualied and competent personnel.
The installation must comply with the “Water Supply Regulations 1999 (Water
Fittings)” or any particular regulations and practices, specied by the local water
company or water undertakers.
Note! Make sure that all site requirements correspond to the information given in
section: ‘Specications’.
1. The mixer must not be installed in an area where it may freeze.
2. For stud partitions alternative xings may be required.
3. Isolating valves must be installed close to the mixer for ease of maintenance.
4. Pipework must be rigidly supported and avoid any strain on the connections.
5. Pipework dead-legs should be kept to a minimum.
6. Decide on a suitable position for the
mixer. The position of the mixer and
the shower ttings must provide a
minimum gap of 25 mm between
the spill-over level of the shower
tray/bath and the handset (refer to
illustration). This is to prevent back-
siphonage.
Note! Only use shower fittings
recommended by the manufacturer
or supplier.
7. All pipework must be checked for
leaks before the product installation
is completed. The product should
be pressurised and the inlet & outlet
connections inspected.
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