Mira Moto, Pace, Miniduo, Minilite, Minilite Eco User Manual

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Page 1

MIRA MOTO, MIRA PACE†,

MIRA MINILITE†, AND MIRA MINIDUO†

(†including Eco models)

THERMOSTATIC MIXERS

INSTALLATION & USER GUIDE

These instructions must be left with the user.

Page 2

CONTENTS

Introduction 2

Guarantee 3

Recommended Usage 3

Patents and Design Registration 3

Safety Warnings 3

Pack Contents 4

Exposed Thermostatic Mixers 4

Built-in Thermostatic Mixers 5

Valve Combinations 6

Specications 7

Installation 9

Suitable Plumbing Systems 9

General 9

Exposed Thermostatic Mixers 10

Adjustable Elbow Installation 13

Flow Regulators 19

Operation 23

Commissioning 23

Maximum Temperature Setting 23

Type 2 Valves 24

Fault Diagnosis 26

User Maintenance 26

Filter Replacement 26

Lubricants 27

Cleaning 27

Spare Parts 29

Accessories 31

Customer Service 32

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 Moto, Mira Minilite and Mira Minilite Eco are thermostatic mixers with a single control lever for on/off and temperature control.

The Mira Pace, Mira Pace with Eco Showerhead, Mira Miniduo and Mira Miniduo with Eco Showerhead are thermostatic mixers with separate on/off and temperature controls.

The thermostatic mixers incorporate 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.

These products have been certied as Type 2

valves under the BUILDCERT TMV2 scheme. They also comply with the Water Supply (water

ttings) Regulations 1999.

If you experience any difficulty 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.

Page 3

Guarantee

For domestic installations, Mira Showers guarantee the products listed in this guide against any defect in materials or workmanship for a period of three years from the date of purchase

(shower ttings for one year).

For non-domestic installations, Mira Showers guarantee the products listed in this guide 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

Domestic

Light Commercial

Heavy Commercial

Healthcare

Valve with

Fittings

Patents and Design Registration

Patents:

GB: 2 291 693, 2 340 210, 2 392 225, 2 421 297 Euro: 1 672 257 DE, FR, GB, IT, NL, SE USA: 7 240 850

Patent Applications:

Euro: 03254070.0 USA: 2006-0124758-A1, 2007-0221740-A1

Design Registration:

000793401-0005-00011

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. Type 2 Valves are only used for applications covered by their approved designations, refer to section: ‘Type 2 Valves’.

3. 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 difculty understanding

or operating the controls of any shower should be attended whilst showering. Particular consideration should be given to the young,

the elderly, the inrm 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. 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.

Page 4

PACK CONTENTS

Tick the appropriate boxes to familiarise yourself

with the part names and to conrm that all of the

parts are included.

Documentation

q 1 x Guarantee Registration Document q 1 x Installation Template

Exposed Thermostatic Mixers

q 1 x Thermostatic Mixing Valve

Mira Minilite EV or

Mira Minilite Eco EV

Mira Moto EV

Component Pack

q 2 x Concealing Plates

q 2 x Compression Nuts

q 2 x Olives

q 2 x Wall Plugs

q 2 x Fixing Screws

q 1 x 2.5 mm Hexagonal Key

q 1 x Flow Regulator (refer to

section: ‘Flow Regulators’)

q 1 x ‘O’ Key

Mira Miniduo EV or

Mira Miniduo with adjustable elbows

Mira Miniduo with Eco Showerhead EV

Mira Pace EV

Mira Pace with adjustable elbows

Mira Pace with Eco Showerhead EV

Page 5

Built-in Thermostatic Mixers

q 1 x Thermostatic Mixing Valve

Mira Minilite BIV or

Mira Minilite Eco BIV

Mira Miniduo BIV or

Mira Miniduo with Eco Showerhead BIV or

Mira Miniduo with Eco Showerhead BIR

Documentation

q 1 x Guarantee Registration Document q 1 x Cardboard Building-in Shroud

Component Pack

q 3 x Compression Nuts

q 3 x Olives

q 5 x Wall Plugs

q 5 x Fixing Screws

q 1 x 2.5 mm Hexagonal Key

oror

q 1 x Flow Regulator (refer to

section: ‘Flow Regulators’)

q 1 x ‘O’ Key

Mira Pace BIV

q 1 x Concealing Plate

Assembly

q 1 x RAC Assembly

Page 6

Valve Combinations

These thermostatic mixers are available with various shower ttings and water saving features, refer to

the table below to identify your mixer valve combination:

Mixer Valve

Moto EV / Minilite EV

Pace EV / Miniduo EV

Minilite BIV L14A 12 L/Min Natural

Minilite Eco EV L14A 6 L/Min Black

Minilite Eco BIV L14A 6 L/Min Black

Miniduo BIV L98B

Pace with Eco Showerhead EV

Miniduo with Eco Showerhead EV

Miniduo with Eco Showerhead BIV

Miniduo with Eco Showerhead BIR

Shower

Fittings

L14A 12 L/Min Red

L98B 12 L/Min Red

L98B with Eco

Showerhead

L98B with Eco

Showerhead

L98B with Eco

Showerhead

Eco BIR

Showerhead

Flow Rate Colour Comments

12 L/Min Natural

7.0 L/Min Olive Green

7.3 L/Min

Bright Green

Flow Regulator

Supplied in the component pack, designed to

be tted in the shower valve outlet

Supplied in the component pack, designed to

be tted in the shower valve outlet

Supplied in the component pack, designed

to be tted between the shower hose and

RAC assembly

Factory tted in the shower valve outlet

(optional 8 L/Min (white/natural) flow regulator supplied separately in the component pack)

Factory tted in the RAC assembly (optional

8 L/Min (white/natural) flow regulator supplied separately in the component pack)

Supplied in the component pack, designed

to be tted between the shower hose and

RAC assemblyPace BIV L14D

Supplied in the component pack, designed

to be tted between the shower hose and

shower valve outlet

Supplied in the component pack, designed

to be tted between the shower hose and

shower valve outlet

Supplied in the component pack, designed

to be tted between the shower hose and

RAC assembly

Supplied with the Eco BIR shower head,

designed to be tted between the wall plate

and inlet nipple

Flow regulators are supplied for installation on high pressure systems (above 0.5 bar).

For gravity fed or other low pressure systems do not t the ow regulator. The Mira Minilite Eco has a ow regulator factory tted in the shower valve outlet or RAC assembly,

on older combination boiler systems it may be necessary to replace this 6 L/Min ow regulator with the 8 L/Min ow regulator (supplied), in order to achieve the minimum ow rate required to ignite and run

the boiler.

Important! The tting of anyow regulator to Pace and Miniduo models will invalidate TMV2 compliance due to the minimum ow rate requirements. Do not t ow regulators in TMV2

applications to these models.

For further information on how and where to t the ow regulator, refer to section: ‘Flow Regulators’.

Page 7

SPECIFICATIONS

For Type 2 Valves, the supply conditions specied

in section: ‘Type 2 Valves - Application’ take precedence over the operating parameters which follow.

Pressures

• Max Static Pressure: 10 Bar.

• Max Maintained Pressure: 5 Bar.

• Min Maintained Pressure (Gravity System):

0.1 Bar (0.5 Bar for models with Eco Showerhead). (0.1 bar = 1 Metre head from cold tank base to showerhead outlet).

Note! For gravity fed or other low pressure

systems (0.5 bar or below) do not t the outlet ow regulator (where applicable).

• For optimum performance supplies should be

nominally equal.

Temperatures

• Factory Pre-set (Blend) Shower: 41°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).

Flow Rates

Typical Flow Rates.

Mira Miniduo with Mira L98B Shower Fittings:

Flow Rate (L/Min)

0.5 1.5 2.5 3.5 4.5

01 23

Supply Pressure (bar)

Dimensions

(All dimension in millimetres)

Moto, Minilite and Minilite Eco EV

113

Ø54

Ø46

76.5

110

See Note! below

Connections

• Inlets: 15 mm Compression.

• Outlet: ½” BSP Flat Face / 15 mm

Compression

• Standard connections are: hot - left, cold -

right, outlet - bottom (EV models), top (BIV and BIR models).

Page 8

Pace, Pace with Eco Showerhead, Miniduo and Miniduo with Eco Showerhead EV

125

Ø54

Ø46

110

See Note! below

Note! If you are retro-tting your mixing valve onto

existing pipework, an Adjustable Elbow Pack is available if required, refer to section: ‘Accessories’.

Miniduo and Pace with Adjustable Elbows

Minilite and Minilite Eco BIV

56-76 39-59

Ø183

103

Pace, Miniduo BIV and Miniduo with Eco Showerhead BIV / BIR

76.5

133

153

Pipe Centres at extremes of elbow adjustment

Ø46

56-76 53-73

Ø183

103

Page 9

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.

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). Note! On combination boiler systems we

recommend that the thermostatic mixer is

operated in the maximum ow position in order to achieve the minimum ow rate required to ignite

and run the boiler.

Unvented Mains Pressure System:

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.

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 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. For further information on the installation of your Shower Fittings, refer to the Fittings Installation and User Guide.

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, qualied and competent personnel.

The installation must comply with the “Water Supply Regulations 1999 (Water Fittings)” or any

particular regulations and practices, specied by

the local water company or water undertakers. Note! Make sure that all site requirements

correspond to the information given in section: ‘Specications’. For Type 2 Valves see also supply conditions in section: ‘Type 2 Valves’.

1. The Mixer must not be installed in an area where it may freeze.

2. For stud partitions alternative xings may be

required.

Page 10

Exposed Thermostatic Mixers

For Built-in Thermostatic Mixers go to section: ‘Installation, Built-in Thermostatic Mixers’.

1. The thermostatic mixer can be installed with

rear, rising or falling supply inlets. Decide on the most appropriate method for your installation, and if necessary, loosen the grubscrews and rotate the inlet elbows to suit.

Important! Make sure that the elbows are

pushed fully onto the mixer before tightening the grubscrews, do not overtighten.

2. Use the installation template to mark the positions of the holes for the backplate and the pipe centres.

For rising or falling supplies the pipe positions

should be set 39 mm from the centre of pipe

to the nished wall at 110 mm centres.

Note! If you are retro-tting your mixing valve

onto existing pipework, an Adjustable Elbow

Pack is available if required, refer to section: ‘Accessories’.

3. For solid walls drill the holes for the backplate

with a 6 mm drill and insert the wall plugs (supplied). For other types of wall structure alternative fixings may be required (not supplied).

Wall Plug

6 mm Drill

4. For Rear Entry Supplies Only:

a) Drill the holes for the supply pipes at

110 mm centres.

Note! Recess the inlet holes Ø19 mm x

2 mm deep to allow for the concealing plates.

5. Fit the supply pipework: Hot - Left, Cold

- Right. The inlet pipework should extend

23 mm from the nished wall surface.

Note! If it is not possible to install the

mixer with this pipework conguration follow

instruction 6.

39 mm

Recess Ø19 mm x 2 mm deep

Elbow

23 mm from nished

wall surface

COLD

23 mm

HOT

110 mm

Page 11

6. Reversed Inlet Supplies Only: a) Using a suitable tool, carefully remove the

plug cap from the centre of sealing plug to reveal keyway.

b) Remove the sealing plug using the ‘O’ key

(supplied) or a 12 mm hexagonal key.

c) Unscrew the outlet nipple using the

‘O’ key (supplied) or a 12 mm hexagonal key.

Note! On Mira Minilite Eco models

carefully remove the ow regulator from the outlet nipple rst.

d) Ret the sealing plug and outlet nipple in

the opposite outlets and tighten.

Note! Make sure that the ‘O’ seals are

correctly tted.

Note! On Mira Minilite Eco models ret

the ow regulator.

e) Rotate the mixer 180°. f) The control knob(s) will have to be

realigned, this can be completed in section: ‘Commissioning’.

Plug Cap

Sealing Plug

‘O’ Seal

7. Remove the backplate from the mixer by loosening the grubscrew with a 2.5 mm hexagonal key (supplied).

8. Secure the backplate to the wall using the screws (supplied).

Backplate

Screw

Page 12

9. For Rear Entry Supplies Only:

a) Fit the concealing plates over the inlet

pipes.

Note! Apply silicone sealant to the back

face of the ange.

Concealing Plate

Apply Silicone Sealant

10. Caution! It is essential at this point that the supply pipework is thoroughly

ushedthroughbeforeconnection tothe

mixer. Failure to do so may result in product malfunction and will not be covered under the guarantee.

11. Fit the compression nuts and olives onto the pipework.

12. Align the mixer with the pipework and t onto

the backplate.

Important! Make sure that the hot and cold

inlets on the mixer correspond with the hot and cold inlet supplies.

13. Tighten the compression nuts onto the mixer with a suitable wrench.

Caution! Take care not to damage the chrome

surfaces.

14. Tighten the grubscrew to secure the mixer to the backplate.

15. Fit the shower ttings, refer to your shower

fittings installation and user guide for instructions.

Important! For high pressure systems (above

0.5 bar) make sure that the ow regulator (supplied) is tted, refer to section: ‘Flow

Regulators’.

16. Turn on the hot and cold water supplies and

check for leaks.

17. Before using the shower, refer to section: ‘Commissioning’.

Compression Nut

Olive

Page 13

Adjustable Elbow Installation

1. Unscrew the elbow grubscrews on the

thermostatic mixer with a 2.5 mm hexagonal key (supplied with the thermostatic mixer), pull off the inlet elbows and discard.

2. Using the ‘O’ key (supplied with the thermostatic mixer) or a 12 mm hexagonal key, unscrew the inlet nipples and discard.

3. Fit the new adjustable elbow inlet nipples and tighten with the ‘O’ key.

4. Make sure that the ‘O’ seal is tted and push the

new elbow fully onto the inlet nipple. Tighten the grubscrew with a 2.5 mm hexagonal key.

5. Remove the backplate from the mixer by removing the grubscrew with a 2.5 mm hexagonal key.

6. Draw a centre line between the inlet pipework and, using the adjustable backplate as a template, mark the position of the adjustable

backplate xing holes.

7. For solid walls drill the holes for the backplate with a 6 mm drill and insert the wall plugs (supplied). For other types of wall structure alternative fixings may be required (not supplied).

8. Secure the backplate to the wall using the screws (supplied).

9. Align the mixer with the pipework and t onto

the backplate.

Note! Make sure that the pipes are pushed

fully into the inlet connectors.

10. Tighten the compression nuts onto the mixer with a suitable wrench.

Caution! Take care not to damage the chrome

surfaces.

11. Tighten the adjustable backplate grubscrews with a 2 mm hexagonal key (supplied) to secure the mixer to the backplate.

Adjustable Backplate

Grubscrew

11 mm

Cutout

10 mm

Adjustable Elbow

Backplate

‘O’ Seal

Inlet Nipple

‘O’ Key

Inlet Elbow

Grubscrew

Page 14

Built-in Thermostatic Mixers

1. Carefully remove the concealing cap from the

control knob.

2. Unscrew the grubscrew using a 2.5 mm hexagonal key (supplied) and pull off the control knob(s).

Note! The ow control knob must be in the off

position in order to remove it.

Control Knob

Grubscrew

Concealing Cap

Temperature Control Knob

4. Determine the route for the hot and cold supply pipework and for the outlet pipework.

When connecting to the BIV shower ttings it

is recommended that the outlet be positioned to one side of the mixer. This is to prevent

the exible hose from obstructing the shower

controls (refer to illustration).

Alternative Pipe layouts

Outlet Pipe BIV

Thermostatic Mixer

Cold InletHot Inlet

103 mm

Flow Control Knob

Grubscrew

Concealing Cap

3. Carefully remove the concealing ring from the concealing plate.

Concealing Ring

Concealing Plate

Outlet Pipe BIV

5. Mark the routes for the hot and cold supply pipework at 103 mm centres (Hot - Left, Cold

- Right).

Note! If it is not possible to install the

mixer with this pipework conguration follow

instruction 6.

Falling Supplies: For falling supplies loosen

the grubscrew on each elbow using the 2.5 mm hexagon key (supplied). Remove the elbows and install on opposite sides.

Important! Make sure that the elbows are

pushed fully onto the mixer before tightening the grubscrews, do not overtighten.

Page 15

6. Reversed Inlet Supplies Only:

a) Remove the sealing plug using the ‘O’ key

(supplied) or a 12 mm hexagonal key.

b) Remove the outlet nipple using the ‘O’ key

(supplied) or a 12 mm hexagonal key.

c) Ret the sealing plug and outlet nipple in

the opposite outlets and tighten.

Note! Make sure that the ‘O’ seals are

correctly tted.

d) Rotate the mixer 180°. e) If necessary, loosen the grubscrew on

each elbow using the 2.5 mm hexagon key (supplied). Remove the elbows and install on opposite sides. Retighten the grubscrews.

Important! Make sure that the elbows

are pushed fully onto the mixer before tightening the grubscrews.

Plug Cap

Sealing Plug

‘O’ Seal

Outlet Nipple

8. Carefully cut away the plasterboard and/or brick work to a depth of between 56 and 76 mm from the nishedwallsurface.

Important! Take care to stay within the marked

out diameter otherwise the concealing ring will not seal.

Finished Wall Surface

Rear Mounting

56 - 76 mm

9. Fit the concealing ring over the mixer body, then, holding the mixer level, central and square in the hole, mark the positions of the

two backplate xing holes on the wall.

Backplate Fixing Hole

7. Determine the position of the mixer and draw around the inside of the concealing ring.

Top

Concealing Ring

Backplate Fixing Hole

10. For solid walls drill two 6 mm holes for the wall plugs. For other types of wall structure alternative fixings may be required (not supplied).

11. Caution! It is essential at this point that the supply pipework is thoroughly

ushedthroughbeforeconnection tothe

mixer. Failure to do so may result in product malfunction and will not be covered under the guarantee.

Page 16

12. Insert the wall plugs (supplied) and attach the mixer to the wall or to the timber noggin with the screws provided.

13. Fit the compression nuts and olives onto the pipework, connect the pipes and tighten the compression nuts.

Important! Make sure that the outlet pipework

protrudes through a Ø25 mm hole in the wall or stud partition by approximately 40 mm and temporarily cap off.

Note! For stud partition installations where

access to the rear of the partition is possible,

t the RAC wallplate over the outlet pipework

on the inside of the partition.

For stud partition installations where access

to the rear of the wall is not possible, follow instructions for solid wall installations, making

sure that suitable wall xings (not supplied) are

used to secure the wallplate to the outside of the stud partition.

RAC Wallplate

(shown tted for rear access stud partitions only)

40 mm

16. For solid wall installations or stud partition installations without rear access go to instruction 21.

For stud partition installations with access

to the rear of the partition continue with instruction 17.

17.Finish the wall (e.g. tiles).

Important! Make sure that you use the

cardboard building-in shroud when nishing

the wall. This will protect the valve and make sure that you tile up to the correct diameter.

Caution! Make sure that the nished wall is

within the maximum and minimum limits and to an even depth (no greater than 2 mm variation)

or the controls will not t correctly.

Cardboard Building-in Shroud

Outlet Pipe to Fittings

Screws

Cold Supply

Hot Supply

14. Turn on the water supplies and check for leaks.

15. Determine the nished wall position (e.g. tile

thickness). Turn off the water supply, carefully uncap the outlet pipe and cut to length, the outlet pipe must protrude through the nished wall surface by 21–23 mm.

Note! Remove any burrs from the pipes before

proceeding.

18. Place the RAC backplate over the outlet pipe with the arrow pointing up. The screw holes should be at 45° to the horizontal.

19. Mark the positions of the two RAC backplate

xing holes and drill the two 5.5 mm holes.

Caution! Make sure that you do not drill into

pipework in the wall.

20. Hold the RAC wallplate in position on the rear of the partition, insert the two backplate screws and secure the RAC backplate to the wallplate.

Make sure that the foam seal abuts the nished

wall surface. Go to instruction 30.

RAC Backplate

Backplate Screws

Page 17

21. Loosely attach the RAC backplate to the RAC wallplate, using the two backplate screws provided.

22. Place the RAC backplate/wallplate assembly over the outlet pipe with the arrow pointing vertically up. The screw holes should be at 40° to the horizontal.

23. Mark the positions of the two RAC wallplate

xing holes.

Wallplate

28. Finish the wall, e.g. tiles. then remove the two backplate screws.

Important! Make sure that you use the

cardboard building-in shroud when nishing

the wall. This will protect the valve and make sure that you tile up to the correct diameter.

Caution! Make sure that the nished wall is

within the maximum and minimum limits and to an even depth (no greater than 2 mm variation)

or the controls will not t correctly.

Cardboard Building-in Shroud

40°

RAC Backplate

Backplate Screws

Arrow

24. Remove the assembly from the wall and separate the backplate from the wallplate.

25. For solid walls drill two 6 mm holes for the wall plugs. For other types of wall structure alternative fixings may be required (not supplied). If necessary, make a recess 6 mm

deep to accept the wallplate for ush tting of

the outlet to the wall surface.

Caution! Make sure that you do not drill into

pipework in the wall.

26. Fit the two wall plugs supplied and secure the wallplate to the wall with the two wallplate screws.

27.Make sure that there is clearance behind the

wallplate and temporarily t the two backplate

screws into the wallplate. This will prevent

the xing holes from becoming blocked with

plaster or grout.

29. Place the backplate over the outlet pipe with the arrow pointing vertically up and tighten the two backplate screws. Make sure that the foam

seal abuts the nished wall surface.

RAC Backplate

Backplate Screws

Page 18

Screw

Olive

Backplate Nut

Slot

Retaining Ring

30.Check that the blue ‘O’ seal is tted inside the

backplate nut. Fit the olive and the backplate nut over the outlet pipe and loosely tighten the nut.

31. To prevent the backplate from turning while

tightening the nut, t the retaining ring over the

backplate nut making sure the slots engage with the screws on the backplate, hold the retaining ring with a wrench while tightening the backplate nut. Remove the retaining ring after use.

Retaining Ring shown correctly engaged with Elbow

34. Press the shroud over the elbow, make sure that it engages with the lugs on the backplate.

35. Fit the concealing ring over the mixer and mark

the positions of the three xing holes.

36. For solid walls drill three 6 mm holes for the wall plugs. For other types of wall structure alternative fixings may be required (not supplied).

Caution! Make sure that you do not drill into

pipework in the wall.

Concealing Ring

Screws

32. Check that the second ‘O’ seal (black) is tted

to the outside of the backplate nut. Press the elbow onto the backplate, make sure that the clips on the elbow engage with the backplate.

Elbow

33. Slide the retaining ring over the elbow and engage with the elbow clips. Note! The retaining ring must be engaged correctly to lock the elbow to the backplate, rotate the retaining ring to the postition illustrated.

Apply Silicone Sealant

37. Insert the wall plugs (supplied) and attach the concealing ring to the wall with the screws provided.

Important! Apply silicone sealant to the

groove on the rear face of the concealing ring

38. Fit the concealing plate to the concealing ring.

39. Ret the control knobs.

40 Fit the shower ttings, refer to your shower

fittings installation and user guide for instructions.

Important! For high pressure systems (above

0.5 bar) make sure that the ow regulator (supplied) is tted, refer to section: ‘Flow

Regulators’.

41. Turn on the hot and cold water supplies and

check for leaks.

42. Before using the shower, refer to section: ‘Commissioning’.

Page 19

FLOW REGULATORS

These thermostatic mixers are available with various shower ttings and water saving features, therefore the position and type of ow regulator will vary by model, the ow regulators should be tted in High

Pressure (above 0.5 bar) systems to either;

1. Reduce Excessive Force & Flow Rate

2. Reduce Noise through the mixer due to high or unequal pressures

3. Stabilise incoming supply temperatures

Identify your model and install the ow regulator as illustrated (where appropriate). For gravity fed or other low pressure systems do not t the ow regulator.

applications to these models.

Mira Minilite EV

Mira Minilite Eco EV

Mira Moto EV

Mira Miniduo EV

Mira Pace EV

Note! A 12 L/Min ow regulator (red) is supplied

separately in the component pack, designed to

be tted in the shower valve outlet.

On Mira Minilite Eco EV models only, a 6 L/Min

ow regulator (black) is factory tted in the shower

valve outlet, on older combination boiler systems

it may be necessary to replace this ow regulator with the 8 L/Min ow regulator (white/natural), in order to achieve the minimum ow rate required

to ignite and run the boiler.

Shower Outlet

Flow Regulator

Hose Washer

Hose

Page 20

Mira Minilite BIV

A 12 L/Min ow regulator (natural) is supplied

separately in the component pack, designed to

be tted between the shower hose and RAC

assembly.

Mira Miniduo BIV

A 12 L/Min ow regulator (natural) is supplied

separately in the component pack, designed to

be tted between the shower hose and RAC

assembly.

Mira Miniduo with Eco Showerhead BIV

A 7.0 L/Min ow regulator (olive green) is supplied

separately in the component pack, designed to

be tted between the shower hose and RAC

assembly.

RAC Assembly (will vary depending on model)

Hose

Flow Regulator

Hose Washer

Page 21

Mira Miniduo with Eco Showerhead EV

A 7.0 L/Min ow regulator (olive green) is supplied

separately in the component pack, designed to

be tted between the shower hose and shower

valve outlet.

Mira Pace with Eco Showerhead EV

A 7.0 L/Min ow regulator (olive green) is supplied

separately in the component pack, designed to

be tted between the shower hose and shower

valve outlet.

Shower Outlet

Hose Washer

Flow Regulator

Hose

Mira Minilite Eco BIV

A 6 L/Min ow regulator (black) is factory tted in

the RAC assembly, on older combination boiler

systems it may be necessary to replace this ow regulator with the 8 L/Min ow regulator (white/ natural), in order to achieve the minimum ow rate

required to ignite and run the boiler.

Hose Washer

RAC Assembly

Flow Regulator

Hose

Page 22

Mira Miniduo with Eco Showerhead BIR

A 7.3 L/Min flow regulator (bright green) is supplied with the BIR showerhead, designed to

be tted between the wall plate and inlet nipple.

Refer to your shower fittings installation and user guide.

Wall Plate

Inlet Nipple

Flow Regulator

Page 23

OPERATION

Mira Moto, Mira Minilite and Mira Minilite Eco thermostatic mixers have a single sequential control lever for on/off and temperature control.

The control lever operates anti-clockwise in the following sequence:

• Off

• On

• Cold

• Warm

• Maximum Preset Temperature

Off

Maximum Preset Temperature

Mira Pace, Mira Pace with Eco Showerhead, Mira Miniduo and Mira Miniduo with Eco Showerhead thermostatic mixers have separate

control levers for on/off and temperature. The control levers operate as shown below:

Turn the Flow Lever anticlockwise to the

preset maximum ow

Off

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 41°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 sufcient supply.

For Type 2 installations the maximum blend temperature is determined by the application, refer to section: ‘Type 2 Valves - Application’.

1. Turn on the mixer to the maximum temperature

and maximum ow (i.e. fully anticlockwise) and

allow the temperature to stabilise.

If the temperature is too hot or too cold adjust

as follows:

2. Carefully remove the concealing cap from the control knob.

3. Loosen the control lever grubscrew with the

2.5 mm hexagon key (supplied) and pull off the control lever.

4. If applicable unscrew the hub retaining screw with a 2.5 mm hexagon key.

Note! Do not remove the hub.

Hub

Hub Retaining Screw

Control Lever

Hot

Cold Turn the Temperature Control Handle clockwise to decrease the temperature and anticlockwise to the preset maximum temperature

Flow Control Lever

Grubscrew

2.5 mm Hexagonal Key

Concealing Cap

Page 24

5. Insert the 2.5 mm hexagon key into the centre of the spindle and engage with the recessed temperature adjusting screw.

6. Rotate the hexagon key until the required maximum temperature is obtained at the shower. Anticlockwise to increase the temperature, or clockwise to decrease the temperature (¼ turn = approximately 1°C).

7. Once the desired maximum blend temperature has been achieved turn off the mixer by

rotating either the hub or ow control lever

(depending on model) fully clockwise.

Note! Do not remove the hub.

8. If applicable ret the hub retaining screw.

9. Ret the control lever with the lever at the top

and retighten the grubscrew.

10. Check that the shower temperature is correct.

TYPE 2 VALVES

Application

The approved designations for Type 2 Valves are as follows:

Models Designation

Moto, Minilite LP-S, HP-S, HP-SE

the economy designation is achieved with the

tting of the outlet ow regulator.

Models Designation

Pace, Miniduo LP-S, HP-S

Important!Thettingofanyowregulatorto

Pace or Miniduo models will invalidate TMV2

compliance due to the minimum ow rate requirements. Do not t ow regulators in

TMV2 applications to these models.

Conditions of use for Type 2 Valves

Operating Pressure

Range

Maximum Static Pressure (bar)

Maintained Pressure, Hot and Cold (bar)

Hot Supply Temperature (°C)

Cold Supply Temperature (°C)

High

Pressure

10 10

0.5 to 5 0.1 to 1

55 to 65 55 to 65

≤25 ≤25

Valves operating outside these conditions cannot be guaranteed to operate as Type 2 Valves.

Low

Pressure

Recommended Outlet Temperatures

The BuildCert TMV scheme recommends the following set maximum mixed water outlet temperatures for use in all premises:

44°C for bath ll, but see notes below;

41°C for showers; 41°C for washbasins; 38°C for bidets. The mixed water temperatures must never

exceed 46°C. The maximum mixed water temperature can be

2°C above the recommended maximum set outlet temperatures.

Note! 46°C is the maximum mixed water temperature from the bath tap. The maximum

Page 25

temperature takes account of the allowable temperature tolerances inherent in thermostatic mixing valves and temperature losses in metal baths.

It is not a safe bathing temperature for adults or children.

The British Burns Association recommends 37 to 37.5°C as a comfortable bathing temperature for children. In premises covered by the Care Standards Act 2000, the maximum mixed water outlet temperature is 43°C.

The thermostatic mixing valve will be installed in such a position that maintenance of the TMV and its valves and the commissioning and testing of the TMV can be undertaken.

The tting of isolation valves is required as close

as practicable to the water supply inlets of the thermostatic mixing valve.

If there is no signicant change to the set outlet

temperature (±2°C or less change from the original settings) and the fail-safe shut off is functioning, then the valve is working correctly and no further service work is required.

Notes! If there is a residual flow during the commissioning of the valve or the annual

verication (cold water supply isolation test), then

this is acceptable providing the temperature of the water seeping from the valve is no more than 2°C above the designated maximum mixed water outlet temperature setting of the valve.

Temperature readings should be taken at the

normal ow rate after allowing for the system to

stabilise. The sensing part of the thermometer probe

must be fully submerged in the water that is to be tested.

Any TMV that has been adjusted or serviced must be re-commissioned and re-tested in accordance with the instructions given in this guide.

Commissioning notes for Thermostatic Mixing Valves

The rst step in commissioning a thermostatic

mixing valve is to check the following: The designation of the thermostatic mixing valve

matches the application. The supply pressures are within the valves

operating range. The supply temperatures are within the valves

operating valve. Isolating valves (and strainers preferred) are

provided. If all of these conditions are met, proceed to

set the temperature as specified in section:

‘Commissioning’.

Important! The mixed water temperature at the

discharge point must never exceed 46°C

It is a requirement that all TMV2 approved valves shall be verified against the original set temperature results once a year. When commissioning/testing is due the following performance checks shall be carried out.

Measure the mixed water temperature at the outlet.

Carry out the cold water supply isolation test by

isolating the cold water to the TMV, wait for ve seconds if water is still owing check that the

temperature is below 46°C.

The installation of thermostatic mixing valves must comply with the requirements of the Water Supply (Water Fittings) Regulations 1999.

Page 26

FAULT DIAGNOSIS

Symptom:

• Only hot or cold water from the mixer outlet.

• Outlet temperature too hot / too cold.

CauseRectication:

• Inlets reversed (hot supply to cold supply).

Refer to section: ‘Reversed Inlet Supplies’.

• No hot water reaching mixer.

• Check the lters for any blockage refer to

section ‘User Maintenance’.

• Installation conditions outside operating

parameters, refer to sections: ‘Specications’ and ‘Commissioning’.

• If the temperature is too cold and you have

a combination type boiler it may not be producing sufciently hot water at desired ow rate (refer to ‘Specications’). Fit ow regulator (supplied) to shower valve outlet. For more information contact Mira Showers or visit the website.

—————————————

Symptom:

• Fluctuating or reduced ow rate.

CauseRectication:

• Check the showerhead, hose and lters for

any blockage.

• Make sure that the maintained inlet pressures

are nominally balanced and sufcient, refer to section: ‘Specications’.

• Make sure that the inlet temperature

differentials are sufcient, refer to section: ‘Specications’.

• Air lock or partial blockage in the pipework.

• Flow regulator tted incorrectly.

• Low ow causing combination boiler to cycle.

Operate at preset maximum ow.

• Mira Minilite Eco models only - ow regulator

causing combination boiler to cycle. Replace 6 L/Min ow regulator (tted) with 8 L/Min ow regulator (supplied).

—————————————

Symptom:

• Water leaking from the showerhead.

CauseRectication:

• Normal for a short period after shut off.

• Check that the pressures are not in excess of

the specications for the product.

• Renew the thermostatic cartridge.

USER MAINTENANCE

If you require a Mira trained service engineer

or agent, refer to section: ‘Customer

Services’.

Filter Replacement

Exposed Models

1. Isolate the water supplies.

2. Turn on the ow control knob to relieve water

pressure and to drain any residual water.

3. Unscrew the shower hose or rigid riser from the mixer outlet.

4. Using a suitably sized wrench loosen both compression nuts.

5. Using a 2.5 mm hexagonal key (supplied) unscrew the grubscrew securing the mixer to the backplate.

Compression Nuts

Grub Screw

Hexagonal Key

6. Remove the mixer.

7. The lters are retained in the elbow inlet,

remove them and inspect for debris blockage.

Clean each of the lters under a jet of water to

remove any lodged particles.

Filter

Elbow

Page 27

8. Ret or replace the lters and reassemble in

reverse order.

9. Restore the water supplies and check for leaks.

Built in Models

1. Isolate the hot and cold water supplies.

2. Turn on the ow control knob to relieve water

pressure and to drain any residual water.

3. Return the ow control knob to the off position

and carefully remove the concealing cap.

Concealing Ring

Concealing Plate

7.Clean each of the lters under a jet of water to

remove any lodged particles.

8. Ret or replace the lters and tighten the lter

caps.

Note! Make sure that the seal is tted correctly

and not damaged.

9. Turn on the hot and cold water supplies and check for leaks.

10. Reassemble all other parts in reverse order.

Lubricants

Silicone based lubricants must only be used on the rubber seals.

Caution! Oil based or other lubricant types may cause rapid deterioration of seals.

Control Knobs

Grubscrew

Concealing Cap

4. Unscrew the grubscrew using a 2.5 mm hexagonal key (supplied) and pull off the control knob(s).

5. Carefully unclip and remove the concealing plate from the backplate.

Note! Use a screwdriver in the cutout to assist

separation.

6. Unscrew the filter caps with the ‘O’ key (supplied) or a 12 mm hexagonal wrench and

remove the lters.

Note! Use pliers to assist if necessary.

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.

Do not use descalents on this product.

Filter

Filter Cap

‘O’ key

Page 28

NOTES

Page 29

SPARE PARTS

Exposed Models

1663.157 Backplate Assembly

1663.168 Pipe Concealing Plates (x2)

1663.154 Elbow Connector Assembly

1663.155 Filter Pack (x2)

1663.158 Outlet Nipple

B,C

1663.160 Outlet Plug

1663.151 Hub and Bearing Assembly

1663.156 (Minilite)

1663.268 (Minilite Eco) Control Lever Assembly

Moto, Minilite and Minilite Eco

1663.150 (Moto) Control Lever Assembly

1663.153 Elbow Assembly

1663.152 Thermostatic Cartridge Assembly

1663.166 Thermostatic Cartridge Assembly

1663.159 Seal Pack - components identied ‘A’

1663.161 Component Pack - components

identied ‘B’

1663.162 Screw Pack - components identied ‘C’

1663.265 Flow Regulator Pack (containing all ow

regulators for all models, not illustrated)

Note! All spare parts supplied individually unless stated otherwise.

1663.165 Hub and Retainer Assembly

1663.163 (Miniduo) Control Lever Assembly

1663.164 (Pace) Control Lever Assembly

Pace, Pace with Eco Showerhead, Miniduo and Miniduo with Eco Showerhead

Page 30

Built-in Models

1663.187 Backplate Assembly

1663.188 Elbow & Filter Pack (x2)

1663.186 Concealing Plate Assembly

C, D

1663.160 Outlet Plug

1663.158 Outlet Nipple

1663.151 Hub and Bearing Assembly

Minilite and Minilite Eco

1663.165 Hub and Retainer Assembly

1663.152 Thermostatic Cartridge Assembly

1663.166 Thermostatic Cartridge Assembly

1663.155 Filter Pack (x2)

1663.156 (Minilite)

1663.268 (Minilite Eco) Control Lever Assembly

1663.163 (Miniduo) Control Lever Assembly

1663.164 (Pace) Control Lever Assembly

Pace, Pace with Eco Showerhead, Miniduo and Miniduo with Eco Showerhead

1663.159 Seal Pack - components identied ‘A’

1663.162 Screw Pack - components identied ‘C’

1663.189 Component Pack - components

identied ‘D’

1663.265 Flow Regulator Pack (containing all ow

regulators for all models, not illustrated)

Note! All spare parts supplied individually unless stated otherwise.

1595.035 Miniduo / Miniduo with Eco Showerhead RAC Shroud

450.20 RAC Mounting Pack

450.22 Minilite / Minilite Eco RAC Shroud

Page 31

ACCESSORIES

Genuine Mira accessories can be purchased direct from Mira Customer 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.

Premium Shower Seat

White/Chrome-2.1731.001 White/Chrome-2.1731.002

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 - 150kg (23.5 stone) Note! Must be installed onto a solid wall.

Everclear Showerhead White - 2.1616.030 Chrome - 2.1616.031

Mira's new Everclear range has been specially designed for hard water areas and reduces the risk of lime scale build up.

Shower Seat White - 2.1536.128 White/Chrome - 2.1536.129

For use in or out of the showering area. Note! Must be installed onto a solid wall. Shower seat folds up when not in use

Wall Mounted Soap Dish

White-1.1540.278 Chrome-1.1540.279

Wall mounted for use anywhere in, or outside the showering area.

Double Outlet Check Valve (DCV-H) Chrome - 1.0.110.55.1

DCV-H: An outlet double check valve, designed to prevent the

backow or backsiphonage of

potentially contaminated water, through shower controls which are

tted with a exible hose as part of the outlet shower tting.

Adjustable Elbow Pack Chrome - 1.1663.012

The Mira Adjustable Elbow Pack allows the Mira ‘mini valves’ to be

retro-tted in place of an existing

shower - no need to re-plumb or re-tile.

Page 32

CUSTOMER SERVICE

Guarantee

Your product 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 this guarantee does not extend the original

expiry date. The guarantee on any replacement parts or product ends at the original expiry date.

● For shower  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  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 modi 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  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  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 your product within the guarantee period and beyond. You have the assurance of a fully trained Mira Technician, 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

Mira is a registered trade mark of

Kohler Mira Limited.

The company reserves the right to alter

product speci cations without notice.

Mira Moto, Pace, Miniduo, Minilite, Minilite Eco User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual