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CONTENTS

Introduction 2

Guarantee 3
Recommended Usage 

3

Patents and Design Registration 

3

Safety : Warnings 

3

Pack Contents 

4

Exposed Thermostatic Mixer 

4

Built-in Thermostatic Mixer 

4

Specifications 

5

Pressures 5
Temperatures 5
Thermostatic Shut-down 

5

Connections 5
Flow Rates 

5

Dimensions 6

Installation  

7

Suitable Plumbing Systems 

7

General 7
Exposed Thermostatic Mixer 

8

Built-in Thermostatic Mixer 

10

 

Solid Wall or Stud Partition  

Fixing using Rear Mountings 

10

 

Panel Fixing using Securing  

Brackets 12

 

Solid Wall or Stud Partition  

Fixing using Securing Brackets  13

RAC Assembly 

15

Reversed Inlet Supplies 

16

Operation 18
Commissioning 18

Maximum Temperature Setting 

18

Type 2 Valves 

19

Fault Diagnosis 

20

Maintenance 21
Spare Parts 

23

Exposed Thermostatic Mixer 

23

Built-in Thermostatic Mixer 

24

RAC Assembly 

25

Accessories 26
Notes  

27

Customer Service 

Back Page

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 Element SLT thermostatic mixer is a 

thermostatic shower control with a single lever 

for on/off and temperature control. A Mid Flow  

Overide feature allows up to 30% reduction in 

flow at low pressures and a Temperature Overide  

warns when moving into a hotter temperature 

zone.
A  14  L/Min  flow  regulator  is  supplied  for  high 

pressure systems to reduce excessive shower 

force.

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 filters are fitted to protect the thermostatic 

cartridge.

Mira Element SLT Exposed: 

Thermostatic 

Mixer for connection to rising, falling or rear entry 

pipework, supplied with L14A  shower fittings.

Mira Element SLT Built-in: 

Thermostatic Mixer 

for connection to concealed pipework, supplied 

with L14D BIV shower fittings or BIR showerhead 

arm and deluge head.

These  products  have  been  certified  as Type  2 

valves under the BUILDCERT TMV2 scheme. 

They also comply with the Water Supply (water 

fittings) Regulations 1999.

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.

Summary of Contents for Element SLT

Page 1: ...1 MIRA ELEMENT SLT INSTALLATION AND USER GUIDE THERMOSTATIC MIXER These instructions must be left with the user...

Page 2: ...ngle lever for on off and temperature control A Mid Flow Overide feature allows up to 30 reduction in flow at low pressures and a Temperature Overide warns when moving into a hotter temperature zone A...

Page 3: ...commissioned operatedand 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 Valv...

Page 4: ...1 x 2 5 mm Hexagonal Key q 1 x 2 5 mm Hexagonal Key q 1 x Multi Tool q 1 x Multi Tool q 1 x 14 L Min Flow Regulator q 1 x 14 L Min Flow Regulator q 2 x Securing Brackets q 4 x Bracket Securing Screws...

Page 5: ...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...

Page 6: ...6 All dimensions in mm Built in Thermostatic Mixer 153 56 116 142 35 62 183 108 30 59 80 Building in Depth 45 56 Exposed Thermostatic Mixer Dimensions...

Page 7: ...y Regulations 1999 Water Fittings or any particular regulations and practices specified by the local water company or water undertakers Note Make sure that all site requirements correspond to the info...

Page 8: ...r solid walls drill the holes for the backplate with a 6 mm diameter drill and insert the wall plugs Note For other types of wall structure alternative fixings may be required not supplied Wall Plug 4...

Page 9: ...the backplate to the wall using the screws 8 For Rear Entry Supplies Only Fit the concealing plates over the inlet pipes Note Apply silicone sealant to the back face of the flange Apply Silicone Seal...

Page 10: ...upplied Remove the elbows and install on opposite sides Retighten the grubscrews Caution Do not overtighten Note Make sure that the O seals are correctly fitted and that the filter caps can be accesse...

Page 11: ...mponents will not fit correctly then mark the positions of the fixing screw holes on the wall 7 For solid walls drill two 6 mm holes for the wall plugs 8 Fit the hot and cold supply pipes Hot Left Col...

Page 12: ...r Plugs are positioned so that they can be removed for servicing 5 Drill the two 5 5 mm holes for the fixing positions countersink the holes at the front 6 Fit the hot and cold supply pipes Hot Left C...

Page 13: ...6 mm holes for the wall plugs Caution Do not drill into pipes in the wall 6 Fit the hot and cold supply pipework Hot Left Cold Right 7 Caution It is essential at this point that the supply pipework is...

Page 14: ...rill four 6 mm holes for the wall plugs For other types of wall structure alternative fixings may be required not supplied 17 Insert the wall plugs and attach the concealing ring to the wall with the...

Page 15: ...wall surface by 21 23 mm Note Remove any burrs from the pipes before proceeding 4 For solid wall installations or stud partition installations without rear access go to build instruction 9 For stud pa...

Page 16: ...1 This completes the installation of the RAC assembly Dome Shroud Chrome Trim Built in models only Dome Clamp Bearing Bracket Securing Screw REVERSED INLET SUPPLIES The Mira Element SLT thermostatic m...

Page 17: ...nsert was originally removed from pushing the hinge pin in from right to left 13 Make sure that the two cartridge inlet seals are fitted and carefully push the cartridge into the body aligning the car...

Page 18: ...dge and engage with the temperature adjusting screw 4 Rotate the hexagon key until the required maximum temperature is obtained at the shower Turn anticlockwise to increase the temperature or clockwis...

Page 19: ...tap The maximum 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...

Page 20: ...ter 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 The installation of thermostatic mixin...

Page 21: ...ted or plastic fittings Do not use descalents on this product Inlet Filters The inlet filters should be checked and cleaned as necessary every 12 months Note The inlet filters must not be removed exce...

Page 22: ...mm hexagonal wrench and remove the filters Note Use pliers to carefully remove the filters 6 Clean each of the filters under a jet of water to remove any lodged particles 7 Refit the filters and tight...

Page 23: ...nnector Pack 1663 265 Flow Regulator Pack 1656 114 Elbow Connector Pack 1656 112 Elbow Assembly 1656 111 Elbow Cap 1062477 Filter Pack x2 1656 113 Backplate 1656 117 Inlet Connector Pack 1656 110 Seal...

Page 24: ...B 1595 066 Filter Pack x2 1595 046 Seal Pack Identified A 1656 168 Screw Pack Identified B 1595 150 Elbow Assembly Both sides A 1656 167 Trim Pack 1656 161 Overide Pack A 1656 160 Cartridge Assembly...

Page 25: ...25 RAC Assembly 1617 171 RAC Shroud 450 20 RAC Mounting Pack 450 20 RAC Mounting Pack 1663 265 Flow Regulator Pack...

Page 26: ...DCV H Chrome 1 0 110 55 1 DCV H An outlet double check valve designed to prevent the backflow or backsiphonage of potentially contaminated water through shower controls which are fitted with a flexib...

Page 27: ...27 NOTES...

Page 28: ...d 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...

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