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 MyLine is a thermostatic mixer which
has separate ow and temperature controls.
The Mira MyLine is an exposed valve with an
integral slidebar and hose to a 360 Showerhead.
The thermostatic mixer 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 mechanism.
Guarantee
For domestic installations, Mira Showers
guarantee the Mira MyLine against any defect
in materials or workmanship for a period of ve
years from the date of purchase and the shower
ttings for one year.
For terms and conditions refer to the back cover
of this guide.
If you experience any difficulty 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.
2
Page 3
Recommended Usage
Application
Domestic
Light Commercial
Heavy Commercial
Healthcare
Valve with
Fittings
ü
û
û
û
Patents and Design Registration
Patents:
GB 2 340 210
GB 2 392 223
GB 2 422 886
European 1 672 257 (DE, FR, GB, IT, NL, SE)
Germany 60 2005 002 339.9
Patent Applications:
European 07015846.4
US - 2006 - 0124758 - A1
US - 2010 - 0123013 - A1
US - 2010 - 0219255 - A1
Design Registration:
GB 001240527 - 0001
3
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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
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. Rapid/Excessive movement of the ow and/
or temperature control levers may result in
momentary unstable blend temperatures.
7. Care is required when adjusting flow or
temperature. Make sure that the temperature
has stabilised.
8.
Do not remove or tighten the body grubscrews.
9. Care must be taken when positioning the
thermostatic mixer. Make sure that there is
sufcient headroom and ceiling clearance to
install the integral slidebar and Showerhead.
10. 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.
Caution! Do not remove or
tighten these grubscrews.
4
Page 5
PACK CONTENTS
Tick the appropriate boxes to familiarise yourself
with the part names and to conrm that all of the
parts are included.
Mira MyLine MixerMira MyLine Shower Fittings
q 1 x Concealing Plate
q 1 x M4 x 12 mm Grubscrew
q 2 x Olives
q 1 x Thermostatic Mixer
(supplied tted to the backplate)
q 4 x Wall Plugs
q 1 x Wall Plugs
q 1 x Wall Bracket
q 1 x Fixing
Screw
q 1 x Clamp
Bracket
q 1 x Slide Bar
q 1 x Securing Screw
q 1 x Slidebar Support
q 1 x 360m
Showerhead
q 1 x Shower Hose
1.25 m Chrome
(supplied with 2x Sealing
Washers)
q 1 x Hose Retaining
Ring
q 4 x Fixing Screws
q 1 x 2 mm Hexagonal Key
Documentation
q 1 x Guarantee Registration Document
q 1 x 3 mm Hexagonal
Key
5
Page 6
SPECIFICATIONS
Pressures
• Max Static Pressure: 10 Bar.
• Max Maintained Pressure: 5 Bar.
• Min Maintained Pressure (Gravity System):
0.1 Bar (0.1 bar = 1 Metre head from cold
tank base to showerhead outlet).
Note! For gravity fed / other low pressure
systems (0.5 bar or below) remove the outlet
ow regulator. Refer to section: ‘Installation,
Flow Regulator’.
• For optimum performance supplies should be
nominally equal.
Temperatures
• Factory Pre-set (Blend) Shower: 43°C.
• Optimum Thermostatic Control Range: 35°C
to 43°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
higher temperatures for short periods without
damage, however this could detrimentally
affect thermostatic performance. For safety
and performance reasons it is recommended
that the maximum hot water temperature is
limited to 65°C.
• Cold Water Range: up to 25°C.
• Minimum Recommended Differential between
Hot Supply and Outlet Temperature: 12°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
The thermostatic mixer can only be installed with
rear supply inlets and the supply pipework must
be connected as follows:
• Cold: Top (side nearest temperature control),
15 mm compression.
• Hot: Bottom (side nearest ow control), 15
mm compression.
• Outlet: 15 mm at face to hose.
Note! This product does not allow for reversed
inlets and will deliver unstable temperatures if
tted incorrectly.
Cold
Dimensions
All dimensions in mm
6
∅42
Outlet
188
Hot
780
720 (To Screw Hole)
107
59
57
Page 7
INSTALLATION
Suitable Plumbing Systems
GravityFed:
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.
Mains Pressurised Instantaneous Hot Water
System (Combination Boiler):
The thermostatic mixer can be installed with
systems of this type with balanced pressures.
(Recommended Minimum Maintained Pressure:
1.0 Bar).
UnventedMainsPressureSystem:
The thermostatic mixer can be installed with an
unvented, stored hot water system.
Pumped System:
The thermostatic mixer can be installed with an
inlet pump (twin impeller). The pump must be
installed in a suitable location and in accordance
with its instructions.
6. Decide on a suitable position for the Mixer,
make sure that there is sufcient headroom
and ceiling clearance to install the integral
slidebar rail and Showerhead.
The position of the Mixer and the Shower
Fittings must provide a minimum gap of 25 mm
between the spill-over level of the shower tray/
bath and the showerhead (refer to illustration).
This is to prevent back-siphonage.
Note! Only use Shower Fittings recommended
by the manufacturer or supplier.
25 mm
Spill Over
Level
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.
Flow Regulator
Site conditions will determine the ow regulator
requirements.
For gravity fed / other low pressure systems
(0.5 bar or below) remove the outlet ow regulator.
Flow regulators are supplied with this product
and should be tted in High Pressure systems
to either;
1. Reduce Excessive Force and Flow Rate
2. Reduce Noise through the mixer due to
high or unequal pressures
3. Stabilise incoming supply temperatures
7
Page 8
Installing the Thermostatic Mixer
1. The thermostatic mixer must be tted vertically
as illustrated and can only be installed with
rear supply inlets. The supply pipework must
be connected as follows:
• Cold to Top Inlet
• Hot to Bottom Inlet
• Bottom Outlet.
Important! This product does not allow for
reversed inlets.
2. Determine the route for the hot and cold supply
pipework.
Important! Make sure that there is sufcient
headroom and ceiling clearance to install the
integral slidebar.
Cold
Hot
Backplate
Inlet Nuts
Grubscrew
5. Using the backplate as a guide, mark the
positions of the xing holes and the pipe
centres.
Important! Make sure that there is sufcient
headroom and ceiling clearance to install the
integral slidebar.
Note! Make sure that the backplate is the
correct way up (refer to illustration).
Concealing
Plate
Outlet
3. Loosen the 2 backplate grubscrews with the
2 mm hexagonal key (supplied) and pull the
mixer and concealing plate from the backplate.
4. Unscrew the inlet nuts from the backplate.
Large boss must be
tted at the bottom
8
Page 9
6. For solid walls drill the xing holes for the
backplate with a 6 mm drill and insert the
wall plugs (supplied). For other types of wall
structure alternative xings may be required
(not supplied).
7. Drill the holes for the supply pipes and t the
supply pipework:
Cold to Top Inlet, Hot to Bottom Inlet
Note! The inlet pipework should extend
between 12 and 18 mm from the nished wall
surface.
Caution! Make sure that the pipework is not
damaged otherwise the olives will not seal.
8. Fit the backplate over the inlet pipes and
secure to the wall using the xing screws
(supplied).
9. Caution! It is essential at this point
that the supply pipework is thoroughly
ushedthroughbeforeconnectiontothe
mixer. Failure to do so may result in product
malfunction and will not be covered under the
guarantee.
10. Fit the olives onto the inlet pipework and
tighten the inlet nuts using a suitable spanner.
Caution! Do not overtighten.
Important! Make sure that the inlet lters are
tted in the inlet nuts as illustrated.
Fixing Screws
11. Make sure that the concealing plate (with
the hole at the bottom) is loosely tted over
the mixing valve inlets and align the mixer
with the inlet nuts. Push on fully and tighten
the grubscrews to secure the mixer to the
backplate. Make sure that the grubscrews are
engaged fully in the valve body grooves.
Concealing Plate
Inlet Filters
12. Push the concealing plate onto the backplate,
secure with the M4 x 12 mm grubscrew.
Single grubscrew secures
the top inlet to the backplate
Hot Inlet
Cold Inlet
Olive
Large boss must be
tted at the bottom
Inlet Nut
Filter
Two grubscrews secure both the
bottom inlet and the concealing
plate to the backplate
9
Page 10
13. Important! A 12 litre/minute ow regulator is
tted inside the outlet This can be removed
for gravity fed / other low pressure systems
(0.5 bar or below).
14. Temporarily install the hose and showerhead
and commission the mixing valve.
Note! The mixing valve must be Commissioned
before the final installation of the shower
ttings.
Securing Screw
(Access required
for temperature
setting)
COMMISSIONING
Maximum Temperature Setting
Before using the shower the maximum
temperature must be checked to make sure
that it is at a safe level. It has been preset
to approximately 43°C at the factory but due
to variations in site conditions the maximum
temperature may need adjustment.
Note! Make sure that the hot water temperature
is at least 55°C and that there is sufcient supply.
1. Turn on the mixer to the maximum temperature
(i.e. fully clockwise)and full ow, and allow the
temperature to stabilise.
2. Test that the temperature of the water from
the shower outlet is hot enough.
If the temperature is too hot or too cold adjust
as follows:
3. Loosen the securing screw (do not remove
fully) and lift up the temperature lever to
disengage from the control gear.
4. Rotate the temperature lever anti-clockwise
(one serration), re-engage with the control
gear and return to the maximum temperature
stop. Check the temperature, if it is still not
hot enough repeat the procedure.
5. Once the maximum temperature is
satisfactory, tighten the securing screw.
Securing Screw
Temperature Control
Lever
Note! Ensure the sealing washers are installed
into the hose.
Pull down and rotate
the temperature lever
to adjust the maximum
temperature
6. After commissioning of the mixing valve is
complete, remove the showerhead.
10
Page 11
Installing the Shower Fittings
1. Install the hose retaining ring, clamp bracket
and the slidebar support onto the slidebar.
Note! Some components may already be
pre-assembled.
Slidebar Support
700 mm Slidebar
Clamp Bracket
3. Temporary install the slidebar assembly into
the thermostatic mixing valve.
4. Using the wall bracket as a guide, mark the
position of the bottom xing hole for the wall
bracket.
Note! The distance from the top of the
concealing plate to the screw hole on the wall
bracket is 720 mm.
Note! Use a spirit level to make sure that the
wall bracket is vertical.
Hose Retaining Ring
2. Temporary install the wall bracket into the slide
bar support.
Note! Use the wall bracket as a guide to mark
the position of the screw hole.
Slidebar Support
Screw
Hole
Wall Bracket
720 mm
720 To Screw
Hole
5. After marking the position for the wall bracket
remove the slidebar assembly from the
thermostatic mixing valve.
6. Drill one Ø8 mm fixing hole for the wall
brackets at 720 mm from the top of the
concealing plate, and insert the wall plug.
Screw
Hole
11
Page 12
7. Install the wall bracket and fully tighten the
xing screw.
Note! The slot in the wall bracket allow for
minor adjustment.
10. Pass it through the hose retaining ring and
install the showerhead onto the hose.
Note! Ensure that the sealing washers are
installed into the hose.
8. Install the slidebar assembly into the
thermostatic mixing valve.
9. Position the slidebar support over the wall
bracket and secure with the securing screw
as indicated.
Wall Bracket
Wall Plug
Fixing Screw
Clamp
Bracket
Slide Bar
11. Place the showerhead onto the clamp
bracket.
12. Turn on the water and check for any leaks.
Securing Screw
Slidebar Support
Showerhead
Sealing
Washer
12
Hose Retaining Ring
Hose
Sealing
Washer
Page 13
OPERATION
Flow Control
Turn the ow lever anticlockwise to the maximum
ow.
Note! This shower is intended to be used with
the ow control fully open. If excessive water ow
is experienced at the Showerhead then the ow
regulator should be tted.
Temperature Control
Turn the temperature control lever anticlockwise
to decrease the temperature and clockwise to the
preset maximum temperature
+
Temperature Control
-
Off
On
Flow Control
Height Adjustment
The height of the showerhead is easily adjusted by
gently moving the clamp bracket either up or down
the slide bar until the required height is achieved.
13
Page 14
Changing the Spray Setting
The 360 Showerhead has four different spray actions:- Rain, Cloud, Storm and Burst. The showerhead
features a rotating head to enable differing spray patterns to be achieved, turn the showerhead in the
direction shown to activate the different spray patterns.
1
8
2
Rain
7
CloudBurst
6
5
4
3
Storm
14
Page 15
USER MAINTENANCE
If you require a Mira trained service engineer or
agent, refer to section: ‘CustomerServices’.
Fault Diagnosis
Symptom:
• Only hot or cold water from the mixer outlet.
• Outlet temperature too hot / too cold.
CauseRectication:
• Inlets reversed (hot supply to cold supply).
Rework inlet pipework.
• No hot water reaching mixer.
• Checktheltersforanyblockage.
• Installation conditions outside operating
parameters, refer to sections: ‘Specications’
and ‘Commissioning’.
Silicone based lubricants must only be used on
the rubber seals.
Caution! Oil based or other lubricant types may
cause rapid deterioration of seals.
Cleaning
The chrome plated parts should be cleaned using
a mild washing up detergent or soap solution,
rinsed and then wiped dry with a soft cloth.
Warning! Many household cleaners contain
abrasive and chemical substances, and should
not be used for cleaning plated or plastic ttings.
These nishes should be cleaned with a mild
washing up detergent or soap solution, and then
wiped dry using a soft cloth.
Use your thumb or a soft cloth to wipe any
limescale from the soft nozzles and the front
surface of the showerhead spray plate.
Do not use descalents on this product.
Spray Plate
1. Use your thumb or a soft cloth to wipe any
limescale from the soft rubber nozzles and
the front face of the spray plate assembly
Important! The sprayplate must be regularly
cleaned to make sure that the showerhead
does not become blocked.
Use your thumb or a soft cloth
to wipe any limescale from the
soft nozzles
15
Page 16
Spray Plate Assembly
1. Use a suitable tool to remove the grommets.
2. Using the 2.5 mm hexagonal wrench
(supplied), remove the screws.
3. Separate the sprayplate assembly into its
individual components.
4. Clean or replace components as necessary.
Note! Make sure that the seals are located
correctly.
5. Reassemble the components in reverse order.
Grommet
Screws
Seals
Seals
Cloud Spray Plate Assembly
This product is supplied configured for the
majority of showering systems including electric
showers.
Note! for showers with a pressure of below 0.15
bar (1.5 metre head) it might be necessary to
change the Cloud sprayplate assembly for the
LC (Low Capacity) version in order to achieve a
suitable spray pattern.
Caution! The LC sprayplate must not be used
on electric showers
1. Use a suitable tool to remove the grommets.
2. Using the 2.5 mm hexagonal wrench
(supplied), remove the screws.
3. Separate the sprayplate assembly into its
individual components.
4. Replace the Cloud assembly sprayplate with
the LC version.
5. Reassemble the components in reverse order.
Grommet
Seals
Screws
Replacing the Sprayplate or Seals
Low Capacity
Sprayplate
Replacing the Cloud Sprayplate Assembly
16
Seals
Page 17
SPARE PARTS
1660.150
Backplate
1660.151
Concealing Plate
1660.153
Inlet Nuts & Olives (x2)
1660.152
Filter Pack (x2)
1778.019
Shroud Pack
1660.155
Temperature
Lever Pack
1778.018
Mixer Valve
Assembly
1660.157
Flow Lever Pack
(also includes
Securing Nut)
1660.150 Backplate
1660.151 Concealing Plate
1660.152 Filter Pack
1660.153 Inlet Nuts and Olive
1660.155 Temperature Lever Pack (Top)
1660.157 Flow Lever Pack (Bottom)
1778.018 Mixer Valve Assembly
1778.019 Shroud Pack
Not illustrated:
1660.159 Screw Pack
1660.175 Seal Pack
1663.265 Flow Regulator Pack
1778.019
Shroud Pack
17
Page 18
1778.022
Wall Bracket
Assembly
1688.185
Clamp Bracket
1778.021
Slidebar
1688.200
360mShowerhead
1603.104
Shower Hose
(includes 2 Washers)
1778.020
Hose Retaining
Ring
1688.200
Showerhead
1603.104 Shower Hose
1688.160 Rain Assembly - White
1688.162 Storm Assembly - White
1688.164 Cloud Assembly - White
1688.166 Burst Assembly - White
1688.168 Seal & Screw Pack - Components Identied ‘A’
1688.184 Seal & Screw Pack - Components Identied ‘B’
1668.185 Clamp Bracket
1688.200 360m Showerhead
1688.275 Cloud Assembly - LC (Low Capacity) - White
1778.020 Hose Retaining Ring
18
A,B
A, B
1688.164
1688.275
1778.021 Slidebar
1778.022 Wall Bracket Assembly
1688.162
1688.166
A, B
1688.160
Page 19
ACCESSORIES
Genuine Mira accessories can be purchased direct from Customers Services (our contact details can be found on
the back cover of this guide) or from approved stockists or merchants.
Eco Showerhead
White-2.1668.001
Chrome-2.1668.002
The Eco shower head gives
you an invigorating shower, but
reduces water consumption and
heating costs.
Stylish, slim-line and robust
shower seat for use in or outside
of the shower area.Folds up when
not in use. Maximum User Weight
- 150 kg (23.5 stone)Note! Must
be installed onto a solid wall.
Checkvalve(360mand360r)-1688.282
19
Page 20
CUSTOMER SERVICE
Guarantee
Your pr oduct has the benefit of our manufacturer’s
guarantee which starts from the date of purchase.
To activate this guarantee, please return your completed
registration card, visit our website or free phone 0800
0731248 within 30 days of purchase (UK only).
Within the guarantee period we will resolve defects in
materials or workmanship, free of charge, by repairing or
replacing parts or product as we may choose.
If you have not previously activated the guarantee, you will
be required to do so prior to the provision of assistance.
If you do not activate your guarantee our Engineer will be
entitled to charge full payment for the visit (Call out fee
plus parts).
This guarantee is in addition to your statutory rights
and is subject to the following conditions:
● The product must be installed and maintained in
accordance with the instructions given in this user
guide.
● Servicing must only be undertaken by us or our
appointed representative. Note! if a service visit
is required the product must be fully installed and
connected to services.
● Repair under t his guarantee does not e xtend the original
expiry date. T he guarantee on any replacement parts
or product ends at the original expiry date.
● For shower fi ttings or consumable items we reserve
the right to supply replacement parts only.
The guarantee does not cover:
● Call out charges for non product faults (such as
damage or performance issues arising from incorrect
installation, improper use, lack of maintenance, build up
of limescale, frost damage, corrosion, system debris or
blocked fi lters) or where no fault has been found with
the product.
● Water or electrical supply, waste and isolation issues.
● Compensation for loss of use of the product or
consequential loss of any kind.
● Damage or defects caused if the product is repaired
or modifi ed by persons not authorised by us or our
appointed representative.
● Routine maintenance or replacement parts to comply
with the requirements of the TMV 2 or TMV 3 healthcare
schemes.
What to do if something goes wrong
If your product does not function correctly when you fi rst
use it, contact your installer to check that it is installed
and commissioned in accordance with the instructions in
this manual. Should this not resolve the issue, contact our
Customer Services Team who will offer you or your installer
advice and if applicable arrange for a Service Technician to
call. If the performance of your product declines, check in
this manual to see if simple home maintenance is required.
If you require further assistance call our Customer Services
Team.
Extended Guarantees
A selection of protection plans are available that
enable you to cover repair bills for the life of your policy
(excludes Eire). Ring 01922 471763 for more details.
Helpdesk Service
Our dedicated Customer Services Team is comprehensively
trained and can offer help and advice, spare parts,
accessories or a service visit. We will need you to have your
model name or number, power rating (if applicable) and date
of purchase. As part of our quality and training programme
calls may be recorded or monitored.
Mira Showers Website (www.mirashowers.co.uk)
From our website you can register your guarantee,
download additional user guides, diagnose faults, purchase
our full range of accessories and popular spares, refer to
our FAQ’s and request a service visit.
Spares and Accessories
We maintain extensive stocks of genuine spares and
accessories and aim to provide support throughout the
product’s expected life. Payment can be made by phone
at time of order using most major Credit or Debit cards and
we aim to despatch orders within two working days. Items
purchased from us are guaranteed for 12 months from date
of purchase. For safety reasons spares exposed to mains
voltages should only be fi tted by competent persons.
Returns – items can be returned within one month of date of
purchase, providing that they are in good condition and the
packaging is unopened. Please obtain authorisation from
our Customer Services Team before return. We reserve the
right to apply a 15% restocking charge.
Service / Repairs
We have a nationwide team of Service Technicians who can
carry out all service or repair work to y our product within the
guarantee period and beyond. You have the assurance of a
fully trained Mira Te chnician, genuine Mira spare parts and
a 12 month guarantee on any chargeable work done.
Payment should be made directly to the Service Technician
who will accept most major Credit or Debit cards.
To Contact Us
UK
Telephone: 0844 571 5000
www.mirashowers.co.uk
E-mail: technical@mirashowers.com
Fax: 01242 282595
By Post: Mira Customer Services Dept, Cromwell Road,
Cheltenham, Gloucestershire, GL52 5EP
Eire
Telephone: 01 459 1344
E-mail: sales@modernplant.ie
Fax: Dublin 01 459 2329
By Post: Modern Plant Ltd (Dublin),
Otter House, Naas Road, Clondalkin, Dublin 22