MIRA GEM 88 Installation and User Guide SHOWER
Contents
1. MIRA GEM 88 SHOWER CONTROL Installation and User Guide These instructions are to be left with the user CONTENTS aiieoIu Dai rend 3 ICI EE 4 Safety Warnings eriiieieieieee eniin eniin rini 4 CAUTION s M M 4 Pack Contents neret ornat nna k paap innnan Kanu RE RAE 6 DimensiOnS eintritt eaput ara eeu pas ch ya 3 Y RR ER ERI SRA SM ER ER RR RARERRORcERER 8 Specifications ertt eni teoria kk an uon i unto ae ERE ro RAXRRRRR nan ER E 9 1 Pressure Range nme scene ree cr Pv e vex 9 2 Grenier 9 3 Stored Water Temperature minsin 9 4 Flow Rates uec o RRIER GERENS denses T a etienne 10 Installation Requirements eeeeeeeeeaneeseeeeeeeeeeeeeees 11 Typical suitable installations 12 S ETE Tor mec etais er men 17 Mira Gem 88 Surface Mounted Shower Control 17 1 Rising and falling inlet supplies sene 17 2 Rear entry inlet supplies 20 Mira Gem 88 B Built in Shower Control 23 1 Solid or dry lined wall structures seeeeeeeeeeeeeeeseeerrrsreerrrneenn 23 2 Stud partition or dry partition wall structures 27 3 Shower cubicle or laminated panel ssssssssssss 29 Refitting the Cavity Seal eene eiznse 31 Reversed Inlets 12. components identified C 458 17 Installation template 458 19 Flow Regulators pack Not illustrated 553 35 Nipple Assembly chrome 575 12 2 5 mm A F Hexagonal Wrench 618 22 Grub screw 618 23 Grub screw 623 70 Compression Nut chrome 37 Mira Gem 88 spare parts diagram 458 07 458 06 se B MS 618 22 ER f Sg ins 090 95 38 Mira Gem 88 B spare parts list 052 11 079 61 458 01 458 02 458 08 458 09 458 10 458 12 458 16 458 18 458 19 458 20 575 12 618 23 Backplate Assembly Building in Shroud Handle pack chrome Handle pack white Concealing plate assembly Concealing plate assembly Cartridge Body Concealing plate mounting kit components identified D Cavity seal Flow Regulators pack Not illustrated Component Pack components identified E 2 5 mm A F Hexagonal Wrench Grub screw 39 Mira Gem 88 B spare parts diagram 079 61 40 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 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
3. DO NOT operate this appliance if water leaks from this appliance The shower head must be de scaled regularly Lack of regular shower head cleaning will lead to poor performance and cause early failure of the appliance Refer to the Shower Fittings User Guide for more information If pipework and or electical 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 Care is required when adjusting flow or temperature make sure that the temperature has stabilised Rapid Excessive movement of the flow and or temperature control levers may result in momentary unstable blend temperatures Make sure that you fully understand how to operate this shower and make sure that it is properly maintained in accordance with the instructions given in this manual Having completed the installation make sure that the user is familiar with the operation of the appliance When this appliance 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 PACK CONTENTS v Tick the appropriate boxes to familiarize yourself with the part names and to confirm that the parts are included 1 Mira Gem 88 Surface Mounted Shower Control 2 x Pipe Concealing Plates O 2 x Compression Nuts O 2 x Olives L 1 x Mira Gem 88 Shower Control O O S 4 x Concealing
4. The two building in shroud retaining screws should be screwed temporarily into the backplate for use later Note Do not remove the Body Shroud or Seal If the cavity seal or shroud have been removed or are incorrectly fitted refer to section Refitting the Cavity Seal Cavity Seal Retaining Screws 27 2 3 Fit the shower control to the support bracket with the screws nuts and washers supplied 4mm Fix the support bracket and shower control in position using suitable fixing not supplied Note The support bracket requires a clearance depth of 60 mm with a wall thickness of 4 mm Wall thicknesses in excess of 4mm can be accommodated but clearance will be required around the inlet and outlet connections to allow insertion of pipe and tightening of compression nuts The raised portion on the building in shroud can be used as a depth gauge to allow a finished wall thickness between 4 and 21 mm 4 21 mm Clearance to allow pipe insertion Support Bracket 2 4 Drilland suitably plug the four marked fixing holes 2 5 Secure the support bracket to the wall with the screws and plugs provided 2 6 Follow the shower control installation procedure as for Solid or dry lined wall structures instructions 1 4 to 1 17 inclusive to complete the installation Retaining Screws 28 3 Shower cubicle or laminated panel The support bracke
5. at the shower control inlets are maintained approximately equal and do not fall below the recommended minimum Do not install the product in a position in which service access is restricted Do not fit any form of flow control in the shower outlet Do not use excessive force when making connections Do not install the product in a position where it could become frozen Do not install the Gem 88 to an instantaneous water heater or combination boiler system The Mira Gem 88 is designed to be fitted with the pipe centres set at a distance of 153 mm for rear supply connection and the pipe centres set at a distance of 151 mm for rising falling pipes connection See the installation template provided If the Mira Gem 88 is replacing an existing shower the distance between the pipes centre can vary from 149 to 154 mm to facilitate the installation 11 Typical suitable installations Key to symbols Float operated valve CO Stop or servicing valve x p Drop tight pressure reducing gt valve PRV Shower control Warning or overflow pipe 11044 Twin impeller inlet pump Tempering valve Mini expansion vessel Non return Valve 1 Gravity fed showers The shower control MUST be fed from a cold water storage cistern and hot water cylinder providing nominally equal pressures Gravity Fed Showers 12 2 Pumped showers inlet pumps The
6. shower control can be installed with an inlet pump twin impeller The pump MUST be located on the floor next to the hot water cylinder The hot water cylinder vent pipes must be arranged as shown to achieve air separation 30 to 60 a T Pumped Showers inlet pumps Pumped showers outlet pumps The shower control can be installed with an outlet pump single impeller The pump MUST be located on the floor near to the shower control The hot water cylinder vent pipe must be arranged as shown to achieve air separation QE a 30 t060 Ny Pumped Showers outlet pumps 13 4 Unvented mains pressure showers The shower can be installed with an unvented stored hot water cylinder Only a competent person as defined by the Building Regulations may fit this type of system For packages with no cold water take off after the appliance reducing valve it will be necessary to fit an additional drop tight pressure reducing valve when the mains pressure is over 5 bar The drop tight pressure reducing valve must be set at the same value as the unvented package pressure reducing valve Note An expansion vessel MUST be fitted and regularly maintained if any form of backflow prevention device is fitted e g non return valve or check valve This will ensure that
7. 2 5 mm A F hexagonal wrench supplied Make the connections to the inlet pipework Protect the chrome plated surfaces when tightening the compression nuts 21 Concealing Plate Supply Pipe Compression Nut Olive 2 13Turn on the water supplies to the shower mixer and check for any leaks 2 14Turn the flow knob fully anticlockwise for water flow Operate the temperature knob and make sure that the directional hot and cold indicators are correct HOT anticlockwise COLD clockwise Note If this is not the case refer to section Reversed inlets Turn the flow knob fully clockwise to stop the water flow 2 15This completes the installation of the Mira Gem 88 for connection to rear entry inlet supplies 22 Mira Gem 88 B Built in Shower Control The built in shower control is designed to be concealed into a solid or dry lined wall structure A support bracket assembly optional accessory is available which can be used to fix the shower control into a shower cubicle laminated panel stud partition or dry partition wall The building in depth to the finished wall surface is between 50 and 68 mm The building in depth dictates how much of the flow and temperature control knob will be visible through the concealing plate when the installation is completed A building in shroud is supplied to protect the shower control during plastering and tiling and provides a reference for the buildi
8. Caps 2 x Fixing Screws lle O 2 Spares M 1 x Flow Regulator O i WL y SS lt 1 x Installation Template O 2 x Wall Plug Ll 1x2 5mmAF Supplied in the component pack Hexagonal Wrench L 2 Mira Gem 88 Built in shower control 1 x Mira Gem 88 B Shower Control 2 x Fixing Screw O 2 x Flow regulator O 2 x Wall Plug Ll 4 25 mmar With Building in Shroud L Hexagonal Wrench O 1 x Flow Lever O A 1 x Flow Control Bearing O va 1 x Grey Indicator aN 1 x Concealing Plate Trim Bearing O Bracket Assembly O 1 x Concealing Plate O Supplied in the component pack 1 x Indicator Trim O 3 Documentation 1 x Temperature Knob O 1 x Installation amp User Guide O 1 x Customer Support Brochure O 1 Mira Gem 88 Surface Mounted Shower Control 190 Y 126 2 Mira Gem 88 Built in shower control 172 50 68 Note All dimensions are nominal and in millimetres SPECIFICATIONS 1 Pressure Range Mira Gem 88 1 1 Minimum maintained pressure 0 1 bar 1 0 metre head when used with Mira shower fittings 1 2 Maximum maintained pressure 5 bar 1 3 Maximum static pressure 10 bar Mira Gem 88 B 1 4 Minimum maintained pressure 0 1 bar 1 5 Maximum maintained pressure 5
9. Gem 88 against any defect in materials or workmanship for a period of one year from the date of purchase For non domestic installations Mira Showers guarantee the Mira Gem 88 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 v Light Commercial Heavy Commercial Healthcare x SAFETY WARNINGS This Mira Gem 88 Thermostatic Mixer is precision engineered and should give continued safe and controlled performance provided 1 It is installed commissioned operated and maintained in accordance with manufacturers recommendations 2 Periodic attention is given when necessary to maintain the product in good functional order Caution 1 Read all of these instructions and retain this guide for later use 2 Make sure that this guide is left with the user Pass on this guide in the event of change of ownership of the installation site 3 Follow all warnings cautions and instructions contained in this guide and on or inside the shower 4 Installation must be carried out in accordance with these instructions and must be conducted by designated qualified and competent personnel 5 The plumbing installation must comply with the requirements of UK Water Regulations Bye laws Scotland Building Regulations or any particular regulations and practices spec
10. Po FR U cq n n COLD HOT NOT SUITABLE FOR INSTANTANEOUS WATER GRAVITY HOT MAINS PRESSURE HEATERS COMBINATION BOILERS COLD p b 9 Q QF P S COLD HOT e 15 High pressure installations If water flow from the shower is too high or maintained pressure over 1 bar the fitting of a flow regulator is recommended as illustrated below Exposed shower valves and BIV Fa gt S Fit the white 12 l min flow regulator to the NiPPle Outlet o Flow Regulator Washer Flow Regulator BIR Products Fit the brown 12 l min flow regulator Flow Regulator Flow Regulator 16 INSTALLATION Mira Gem 88 Surface Mounted Shower Control 1 Rising and falling inlet supplies 1 1 Determine whether the hot or cold water services will be connected to the shower control from the bottom M He rising or top falling WES Hose Retaining Ring 1 2 The Mira Gem 88 is supplied with inlet connections hot left cold right and LN SEMI bottom outlet as standard D Spill over Level 1 3 Decide on a suitable position for the shower control The position of the Spirit Level shower control and the shower fittings iT must provide a minimum gap of 25 mm between the spill over level of the shower tray bath and the handset This is to prevent back siphonage 14 Use the i
11. bar 1 6 Maximum static pressure 10 bar 2 Connections Mira Gem 88 2 1 Inlet 15 mm compression 2 2 Outlet 1 2 BSP male 15 mm Compression Mira Gem 88 B 2 3 Inlet 1 2 BSP female 2 4 Outlet 1 2 BSP female 3 Stored Water Temperature 3 1 It is recommended that the temperature of stored water should never exceed 65 C A stored water temperature of 60 C is considered sufficient to meet all normal requirements and will minimise the deposition of scale in hard water areas 4 Flow Rates Flow Rate l min Flow Rate l min 35 30 25 20 15 10 35 30 25 20 15 10 Mira Gem 88 with LC Response Shower Fittings Sooth Ts Start Force Economy 5 100 150 200 250 300 Supply Pressure kPa Mira Gem 88 with HC Response Shower Fittings Start Economy 50 100 150 200 250 300 Supply Pressure kPa 10 INSTALLATION REQUIREMENTS Read the section Important Safety Information first Installation must be carried out in accordance with these instructions and must be conducted by designated qualified and competent personnel 1 2 Nog Bb amp o Installations must comply with UK Water Regulations Bye laws Scotland and Building and Plumbing Regulations in force at the time of installation Layout and sizing of pipework must be such that when other services are used pressures
12. coming hot and cold water supply pipes and outlet supply pipe using the appropriate fittings install the shower outlet pipework Turn on the water supplies and check for any leaks Refit the plastic building in shroud over the shower control body and secure with the two shroud retaining screws removed in instruction 1 2 Plaster and tile to the sides of the plastic building in shroud refer to illustration when set remove the shroud retain the screws for later use Make sure that the supply pipework is able to maintain free movement in a solid wall and is protected it is suggested that each pipe is concealed into a suitably sized conduit Note If the shower control is recessed too deep the two shroud retaining screws will not reach the backplate assembly and the shower flow control may foul the concealing plate If the cavity seal or shroud have been removed or are incorrectly fitted refer to section Refitting the Cavity Seal 24 PA Fixing Screw Wall Plug up Pipework Set Deeper Building in Shroud Finished wall surface must amp be within these dis two lines Retaining Screws 1 9 Fit the concealing plate bracket Concealing Plate assembly over the valve and fix to Bracket Assembly the wall with the two retaining screws Plastic Clips Le Take care not to damage the foam seal 1 10Fit the concealing plate over the valve Make sure that the p
13. 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 fitted 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 yo
14. erret tnr nnn n Enna CE EEE ERR RR RR ERR RR AREE 33 enrHicunj 34 Maintenance titt erento tier aanried oo EE cue DR ER NRR tunes 35 Fault diagnosis ssssssseeeeenn emm nenne 35 G n rale lee 36 Spare rici P 37 Mira 88 spare parts Ist perte teer x ERR 37 Mira Gem 88 spare parts diagram sss 38 Mira Gem 88 B spare parts list 39 Mira Gem 88 B spare parts diagram 40 ACCOSSOLIBS co nonien ds ananas anne dan tee ea nee en ei css 41 Customer Servi cio cccncecctic nics ececcncnieescensctesecsusacecczeusvccesecedecnte 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 Arange of Mira 1 2 manual shower controls which provide independent selection of spray force and temperature The Mira Gem 88 is available with a choice of surface mounted and built in models The Mira Gem 88 is not a thermostatic shower control and does not sense supply temperature or pressure variations Therefore inlet water temperatures and pressures especially the hot should be relatively constant in order to maintain a stable showering temperature The Mira Gem 88 is suitable for installation with the followin
15. excess expansion or pulse pressures do not damage the product or the plumbing system o Safety devices i e al M not shown HEP for clarity B 1 COLD HOT Expansion Vessel i Reduced pressure to cold inlet of shower Reduced pressure to cold inlet of shower 3 High Inlet Pressure High Inlet Pressure Reduced pressure Reduced pressure to unvented cylinder to unvented cylinder Combined outlet PRV Cold takeoff after PRV with internal non return valves Expansion pressure taken up by Expansion vessel required unvented cylinder expansion vessel Unvented Mains Pressure Showers 14 Mains pressurised instantaneous hot water shower heated from a thermal store Packages of this type fitted with a tempering valve can be used A drop tight pressure reducing valve MUST be fitted if the supply pressures exceed 5 bar maintained An expansion vessel MUST be fitted and regularly maintained if any form of backflow prevention device is fitted e g non return valve or check valve This will make sure that excess expansion or pulse pressures do not damage the product or the plumbing system The expansion vessel may already be fitted externally or internally within the thermal store check with thermal store manufacturer Th r
16. g packages Gravity fed systems balanced pressure hot and cold Pumped systems balanced pressure hot and cold Unvented thermal store balanced pressure hot and cold Unvented systems balanced pressure hot and cold Fitted with a pressure reducing valve PRV recommended to be set at 3 5 bar The Mira Gem 88 is not suitable for mains pressure cold with gravity pressure hot or combination boilers instantaneous water heaters Shower controls covered by this guide Mira Gem 88 Surface mounted shower control for connection to exposed pipework Chrome or white colour models are available The Mira Gem 88 is designed to be fitted with the pipe centres set at a distance of 153 mm for rear supply connection and the pipes centre set at a distance of 151 mm for rising falling pipes connection See the installation template provided If the Mira Gem is replacing an existing shower the distance between the pipe centres can vary from 149 to 154 mm to facilitate the installation Mira Gem 88 B Built in shower control for connection to concealed pipework Chrome or white colour models are available If you experience any difficulty with the installation or operation of your new shower control then please refer to Fault Diagnosis before contacting Kohler Mira Limited Our telephone and fax numbers can be found on the back cover of this guide Guarantee For domestic installations Mira Showers guarantee the Mira
17. hen make the connection to the inlet pipework Make sure that you protect the plated surfaces 1 12Turn on the water supplies to the shower mixer and check for any leaks 1 13Turn the flow lever 1 4 of a full turn anticlockwise for water flow Operate temperature knob and make sure that the directional hot and cold indicators are correct HOT anticlockwise COLD clockwise Note If this is not the case refer to section Reversed inlets Turn flow lever fully clockwise to stop water flow 1 14This completes the installation of the Mira Gem 88 for connection to rising and falling inlet supplies 19 Compression Nut 2 Rear entry inlet supplies 2 0 2 1 2 2 2 3 2 4 2 5 The Mira Gem 88 is supplied with inlet connections hot left cold right and bottom outlet as standard Decide on a suitable position for the shower control The position of the shower control and the shower fittings must provide a minimum gap of 25 mm between the spill over level of the shower tray bath and the handset This is to prevent back siphonage Use the installation template to mark the positions of the holes for the backplate and the pipes centre Use a spirit level and a pencil to mark the route for the hot and cold water supply pipes at 153 mm centres Note If the Mira Gem is replacing an existing shower the distance between the pipe centres is adjustable from 149 to 154 mm to facilita
18. ified by the local water company or water 4 11 12 13 14 15 16 17 18 19 20 undertakers The installation should be carried out by a plumber or contractor who is registered or is a member of an association such as Institute of Plumbing IOP throughout the UK National Association of Plumbing Heating and Mechanical Services Contractors NAPH amp MSC England and Wales Scottish and Northern Ireland Plumbing Employers Federation SNIPEF Scotland and Northern Ireland The temperature control can be turned from FULL HOT to FULL COLD As such turning the control to full hot will deliver water at the hot water storage temperature This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning the use of the appliance by a person responsible for their safety Children should be supervised to make sure that they do not play with the appliance Sunburn or skin conditions can increase your sensitivity to hot water If water leaks from the pressure relief valve maintenance will be required before the appliance can be safely used If the shower is dismantled during installation or servicing then upon completion the product must be inspected to ensure there are no leaks DO NOT commission this appliance if water leaks from the unit
19. lastic clips are aligned centrally on the metal bracket Retaining recess as illustrated The cut out must Sorew be facing downwards Note Do not silicone seal the concealing plate to the finished wall surface Cut Out Black Drive Lugs 1 11 The black drive lugs should be at the 12 o clock and 6 o clock positions Firmly push the flow control lever with the handle pointing downwards over Black Drive Lugs the black lugs Flow Control Lever 1 12Push the flow lever bearing into the recess on the flow control lever Flow Lever Bearing 25 1 13Lock the flow control lever in position by pushing the grey indicator trim bearing over the cartridge The four clips on the inner edge of the grey indicator trim bearing should clip into the four cut outs in the cartridge Note Make sure that the larger of the four clips is fitted at the bottom Tip Fit the bottom clip first 1 14Locate the indicator trim over the splines of the cartridge Make sure that the colour temperature graphics are at the top with cold in the clockwise position 1 15Make sure that the temperature knob is correctly aligned and push into position until it clicks 1 16Install the shower fittings refer to separate installation guide 1 17Turn the flow lever 1 4 of a turn anticlockwise for water flow Operate the temperature knob and make sure directional hot and cold indicators are correct HOT anticlockwise COLD clockwise Note If
20. lockwise COLD then follow the instructions below 1 Make sure the temperature control is positioned with the levers pointing down as illustrated v Temperature Knob Removal 2 Uncdlip the temperature knob by hand to access the cartridge spindle The arrow on the spindle must be in the upwards position Arrow 3 Rotate the temperature spindle through 180 until the arrow points downwards to reverse the inlets p 4 Fitthe temperature knob 33 OPERATION Warning The temperature control can be turned from FULL HOT to FULL COLD As such turning the control to full hot will deliver water at the hot water storage temperature 1 Turn the flow control lever 1 4 of a full turn anticlockwise to turn the water on or clockwise to turn the water off Flow 2 Turn the temperature control knob in the direction of the red arrow for warmer water and in the direction of the blue arrow for cooler water until the desired temperature of water is obtained Note If this is not the case refer to section Reversed inlets Temperature 34 Fault diagnosis Read the section Important Safety Information first MAINTENANCE Mira products are fully performance tested after assembly In the unlikely event that you experience problems with your shower the following procedure will enable you to undertake basic fault findi
21. ng before contacting Kohler Mira Limited for further assistance or spare parts as necessary If after completing the checks no improvement in performance is experienced then further investigation should be undertaken by the person responsible for installing your shower Only competent persons should remove the cover of the shower control Malfunction Cold water flow from the shower handset a b Hot water used up Low water temperature setting of hot water system typically 60 65 C Cold supply pressure too high relative to hot Wait for the water to reheat Contact the person responsible for installing your shower Refer to section Installation Notes for plumbing advice No flow or low flow rate from the shower handset Spray plate blocked Stop or servicing valve in supply pipe partially closed Head of water below minimum required Wrong handset or spray plates for available pressure Clean spray plate Open valve s Raise cistern or fit Mira pump Fit correct handset or change spray plates Cold water when hot is selected or vice versa Reversed inlets Refer to section Reversed Inlets Too high flow when flow control is fully open Mixer installed on a High pressure system Note This shower is not suitable for combination boilers or instantaneous water heaters Fit the flow regulator supplied Drip from the shower handset Defective flow co
22. ng in depth when chasing out the wall The shower control is not supplied with any interconnecting pipework or plumbing fittings Inlet and outlet threads are 1 2 BSP female parallel The Mira Gem 88 B has inlet connections hot left cold right and top outlet as standard 1 Solid or dry lined wall structures 1 1 Make a recess in the wall large enough for the shower control pipework and a plumbing connections Make sure that the building in depth is correct Backplate Make sure is fitted level to the wall pm Body Shroud Building in Shroud 1 2 Remove the plastic building in shroud The two building in shroud retaining Cavity screws should be screwed temporarily seal into the base for use later Note Do not remove the Body Shroud or Seal If the cavity seal or shroud have been removed or are incorrectly fitted refer to section Refitting the Cavity Seal 45 Retaining Screws 23 1 3 1 4 1 5 1 6 1 7 1 8 Drill and plug the fixing holes Using the screws provided if appropriate fix the shower control and backplate assembly into the recess making sure that the two retaining screw holes are at 45 as illustrated Make sure that the shower control inlets are horizontal with the shower control outlet at the top Install the hot and cold supplies Thoroughly flush the incoming hot and cold water supply pipes before connecting the shower control Make the connections to the in
23. nstallation template to mark the positions of the holes for the backplate Note For rising falling supplies the distance between the pipe centres is 151 mm See the installation template Installation Template Backplate 1 5 Loosen the backplate grub screws and using the 2 5 mm A F hexagonal wrench provided remove the backplate from the shower control body 17 1 6 Drill and suitably plug the two fixing Backplate holes Secure the backplate to the wall by means of the screws provided Screw 1 7 Install the hot and cold supply pipes The distance between the pipe centres must be 151 mm Wall Plug 1 8 Adjust the inlet elbow to accept falling V Groove or rising supplies as follows Grub Screw Using the 2 5 mm A F hexagonal wrench loosen the grub screws and remove the inlet elbows Make sure that the O seal is on the inlet connector not in the V groove Inlet Elbow Shower Control Body Turn the inlet elbows to the required position and refit onto the inlet connectors Tighten the grub screws to fix the inlet elbows and fit the concealing caps Concealing Cap 1 9 Locate the shower control body onto the backplate and secure by tightening the recessed grub screw using the 2 5 mm A F hexagonal wrench 18 1 10 Thoroughly flush the incoming hot and cold water supply pipes before connecting the shower control 1 11Fit the compression nuts and olives over the supply pipes and t
24. ntrol seals possibly caused by failure to flush pipework prior to installation Replace cartridge Refer to section Parts list Asmall amount of water may be retained in the shower head after the shower control has been turned off This may drain off over a period of minutes and should not be confused with a Defective flow control 35 General The Mira Gem 88 shower control is precision engineered to provide satisfactory performance provided that it is installed and operated in accordance with our recommendations contained in this guide When installed in very hard water areas above 200 p p m temporary hardness your installer may advise the installation of a water treatment device to reduce the effects of limescale formation You may if you wish choose to engage the services of a Mira Service Engineer or Agent the terms of which are outlined on the back page of this guide 36 SPARE PARTS Mira 88 spare parts list 055 14 Backplate Assembly 090 95 Pipe Concealing Plate chrome 458 01 Handle pack chrome 458 02 Handle pack white 458 04 Body trim pack chrome components identified A 458 05 Body trim pack white components identified A 458 06 Elbow pack chrome 458 07 Elbow pack white 458 10 Cartridge 458 11 Inlet connector 458 12 Body 458 13 Component pack Exposed chrome components identified B 458 14 Component pack Exposed white components identified B 458 15 Seal pack
25. of lime scale build up Logic Showerhead Holder White 2 1605 149 White Chrome 2 1605 150 An alternative to the traditional slide bar Often a useful addition when positioned for the smaller members of the family Shower Seat White 2 1536 128 White Chrome 2 1536 129 For use in or out of the showering area Folds up when not in use Maximum User Weight 127 kg 20 stone Note Must be installed onto a solid wall Mira Standard Grab Bars 300 mm 2 1605 070 450 mm 2 1605 071 600 mm 2 1605 072 Premium grade highly polished stainless steel grab bars Note Must be installed onto a solid wall Premium Shower Seat White Chrome 2 1731 001 Grey 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 150 kg 23 5 stone Note Must be installed onto a solid wall Support Bracket 805 38 Allows the shower control to be fitted into a shower cubicle stud partition or dry partition wall Available as optional accessory from your Mira stockist 41 Outlet Double Check Valve DCV H Chrome 1 0 110 55 1 An outlet double check valve designed to prevent the back flow or back siphonage of potentially contaminated water through shower controls which are fitted with a flexible shower hose as part of the outlet shower fitting NOTES 42 NOTES 43 CUSTOMER SERVICE Guarantee Your produc
26. oper use lack of maintenance build up of limescale frost damage corrosion system debris or blocked filters or where no fault has been found with the product Water or electrical supply waste and isolation issues e Compensation for loss of use of the product or consequential loss of any kind e Damage or defects caused if the product is repaired or modified by persons not authorised by us or our appointed representative e 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 first 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 Mira is a registered trade mark of Kohler Mira Limited The company reserves the right to alter product specifications without notice 1061361 W2 D 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
27. t optional is recommended to fit the shower control into a shower cubicle or laminated panel 2 20 mm thick The dimension from the bracket to the finished wall surface is 50 68 mm 3 1 Cut a 108 mm diameter hole in the 2 to 20 mm Siena panel and drill two 4 5 mm holes at Wall Surface 138 mm centres at an angle of 45 from the horizontal 50 to 68 mm Panel Fixing Screw Cubicle or Laminated Panel Body Shroud 3 2 Remove the plastic building in shroud The two building in shroud retaining screws should be screwed temporarily into the backplate for use later Note Do not remove the Body Shroud or Seal If the cavity seal or shroud have been removed or are incorrectly fitted refer to section Refitting the Cavity Seal Building in Shroud Cavity Seal Retaining Screws 29 3 3 Fit the shower control and the backplate to the support bracket with the screws the nuts and the washers supplied Support Bracket Retaining Screws Support Bracket 3 4 Secure the bracket to the wall with the screws provided 3 5 Follow the shower control installation procedure as for Solid or dry lined wall structures instructions 1 4 to 1 7 and 1 9 to 1 17 Shower Control Screw 30 REFITTING THE CAVITY SEAL 1 Unscrew and remove the two cartridge retaining screws and remove the cartridge from the body 2 Check that the seal on the base of the cartridge is clean and fi
28. t 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 e 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 e For shower fittings or consumable items we reserve the right to supply replacement parts only The guarantee does not cover e Call out charges for non product faults such as damage or performance issues arising from incorrect installation impr
29. te installation Remove the plaster and brick block to the required depth to conceal the pipework Install the supply pipes The pipes must project from the finished wall by 13 mm Finish the surface of the wall as required The recesses in the wall for the concealing plates must be 32 mm diameter x 10 mm deep 20 p Hose Retaining Ring VN 25 mm Minimum Level Spirit Level 13 mm From Finished Wall Surface Wall Plug 153 mm Centres Spill over Installation Template Backplate 2 6 2 7 2 8 2 9 Loosen the backplate grub screw and using the 2 5 mm A F hexagonal wrench provided remove the backplate from the shower control body Drill and suitably plug the two fixing holes Secure the backplate to the wall by means of the screws provided Fit the concealing plates over the pipework into the enlarged recess in the finished wall surface Thoroughly flush the incoming hot and cold water supply pipes before connecting the shower control 2 10Fit the compression nuts and olives to the supply pipes 2 11Align the valve over the backplate and inlet pipe work If the pipe work and the nipples are not aligned the nipples can be moved to achieve the alignment This adjustment can achieve an alignment of the pipes centre between 149 154 mm 2 12Locate the shower control body onto the backplate and secure by tightening the grub screw using the
30. this is not the case refer to section Reversed inlets Turn flow knob fully clockwise to stop water flow 1 18This completes the installation of the Mira Gem 88 B into solid or dry lined wall structures 26 Grey Indicator Trim Bearing Cut Outs For Clips Note Make sure that the large clip is at the bottom Flow Control Lever Cold Indicator Trim Temperature Knob 2 Stud partition or dry partition wall structures The support bracket from Mira stocklist as an optional accessory has been designed to allow the shower control to be installed into the front face of a stud partition wall and is recommended for this type of installation However installers may wish to consider other options such as fabricated rear supports using wooden noggins however these methods of fixing are beyond the scope of this guide The building in depth to the finished wall surface is between 50 and 68 mm The building in depth dictates how much of the flow and temperature control knob will be visible through the concealing plate when the installation is completed The bracket must be fixed into a wall recess at an angle of 45 from horizontal 2 1 Cut a 135 mm diameter hole in the 135 mm panel and mark the fixing holes for the support bracket if used at 45 Make sure that the building in depth is correct Backplate Body Shroud Building in Shroud 2 2 Remove the plastic building in shroud
31. tted Cavity Seal Cut out 3 Align the cut outs on the cavity eM seal with the screw positions on the cartridge Screw Position Pipe Recess Cavity Seal 4 Make sure that the pipe recesses on the cavity seal are aligned as illustrated i Pipe Recess S Pipe Recess Raised Location Feature 31 Place the cavity seal and the cartridge assembly on a flat surface Align the cut outs on the shroud with the screw positions on the cartridge Push down firmly on the shroud while lifting the edge of the cavity seal over the lip of the shroud Note A wet soapy solution applied around the edge of the cavity seal will aid location Note the raised locating feature on the cartridge align this feature as shown with the recessed feature in the brass body Push the cartridge firmly into position Caution If the cartridge is not positioned correctly the shower will leak from the body when the water supply is turned on Secure the cartridge into position with the two cross head screws Caution Do not overtighten the screws as you may damage internal components Screw Position Screw Position Shroud Cut Cavity Seal Cavity Seal Apply a wet soapy solution before locating shroud Raised Locating Feature Pipe Recess Recessed Feature 32 REVERSED INLETS In the event that the temperature control is not functioning as described anticlockwise HOT and c
32. ur 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 FM 14648 SHOWERS Kohler Mira Limited February 2011
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