Installation & User Guide MIRA EXCEL SHOWER
Contents
1. Fit high capacity spray plate Increase flow pressure through system Contact boiler manufacturer Raise cistern or fit Mira pump Clean or renew Flush pipework before refitting vi v v vi v vi v v v v v v v __ Malfunction Cause Remedy A B C Drip from handset spray plate assembly or bir spray plate assembly Maximum shower temperature too hot or too cold Other hot or cold draw off being used causing wide pressure changes or instantaneous boiler temperature changes Supply pressures unequal A small amount of water may be retained in the shower fitting after the shower control has been turned off This may drain over a few minutes Defective ceramic plates within the shower cartridge Maximum temperature incorrectly set 36 Do not use other outlets whilst showering Refer to Section Installation Requirements This is quite normal Changing the angle of the shower fitting may vary the draining time Renew the cartridge assembly Check that the pressures are not in excess of the maximum for product refer to Fault Diagnosis Flow control lever stiff to operate Reset the maximum temperature Refer to Section Commissioning Maximum Temperature Setting Shower temperature too cold maximum temperature correctly set Leak from shower control body Flow control lever stiff to operate Hot water temperature less th2. For SPARES ADVICE or REPAI Please call us on 0844 571 5000 UK Only MIRA EXCEL SHOWER CONTROL Installation amp User Guide These instructions are to be left with the user CONTENTS NNT OC UCUIO IN MAE T tanveeees tanseueeesessegeiaes tascenstetaasecesectasecs 3 Patents and Design Registration ccccceecceeeeeeeeeeeeeeeetetneeeeeeenneeeeeee 3 Important Safety Information ccceecececeeeeeeeeeeeeeeeeseeeeeeenseeesseenseeeeeeees 4 Pack Contents Checklist cccceccceceseeeeeeeeeseeeseeeeesenseeesseenseeesseeaeseeeeeees 5 DIMONSIONS oi ccscccccccssscceciceccccacectedsssdevecesesceveesssccevenessccadeneesscedeversscceevestescze 7 SPCCIHICATIONS wiscescveccsiccciesscesecessesner ced tedeneesaceecneceetieeneesseseesneiceeseveeeeeadtereys 8 Installation Requirements ceceeeseeeeeee cece eee eee eeeeeeeeeaneeseeeeeeeeeeeeeees 10 Installation i sicccceccccccccte ce cecdsccecceesecctccecessssteeceestbtsieeescebideessecbiseessstedineeest 12 GONG lal EE A aece ee Beats eae else ae ee 12 EXCO iirinn aitadetetaaxtivben EEA A ETA 13 1 Back inlet supplies rising or falling concealed pipework 13 2 Exposed supplies rising or falling surface pipework 16 Excel Bi ccncecacasihnavcarabatwenceanscahwaaka E sua 21 3 S lid and drylined WAIlS eresien O 21 4 Stud Partitions and Shower Enclosures Front Face 008 25 5 Laminated Panels and Shower Enclosure
3. drop tight pressure reducing valve PRV just after the property incoming mains stopcock effectively balancing the hot and cold supply pressures Ideally set the PRV at 3 5 bar Balance Excel inlet supply pressures Fit a drop tight PRV just after the incoming mains stopcock effectively balancing the hot and cold supply pressures Ideally set the PRV to 3 5 bar Maximum maintained pressure for shower should not exceed 5 bar If greater fit a drop tight PRV installed as detailed above Refer to section Reversed Inlet Connections Clean or renew Refer to section Control Assembly MAINTENANCE The Mira Excel is designed to be maintenance free as such there are no serviceable parts in the cartridge however regular cleaning will keep the shower in pristine condition Strainers are fitted to the inlets of the mixer to protect the cartridge and will give many years of trouble free showering Strainers should be checked at yearly intervals and cleaned or replaced to maintain optimum shower performance 1 Cleaning Many household cleaners contain abrasive and chemical substances and should not be used for cleaning plated or plastic fittings These finishes should be cleaned with a mild washing up detergent or soap solution and then wiped dry using a soft cloth 2 Cartridge assembly renewal 2 1 Refer to section Reversed Inlet Connections and follow the instructions to remove the cartridge assembly N
4. ememr ECO START a START 40 SOOTHE FORCE 30 g o ow 20 me 10 ie 0 0 1 2 3 4 5 Pressure Loss Bar Mira Excel with Logic Fittings low capacity spray plate 50 ssssssessnsns ECO START START 40 SOOTHE FORCE T 30 g 20 WL 10 Oo 1 2 3 4 5 Pressure Loss Bar Note Pressure conversion 1 bar 10 m head of water 100 kPa INSTALLATION REQUIREMENTS Key to Symbols moar yane Om Twin Impeller Pump Isolating Valve Single Impeller Pump Thermostatic Mixer XI Tempering Valve D Mini Expansion Vessel The Mira Excel is compatible with the following systems Overflow Indicator ATON Pressure Reducing Valve Gravity fed system The Thermostatic Mixer MUST be fed from a cold water cistern and hot water cylinder providing nominally equal pressure Gas heated system The Thermostatic Mixer MUST be installed with a gas water heater or combination boiler of a fully modulating design 10 Unvented mains pressure system The Thermostatic Mixer can be installed with a unvented stored hot water cylinder Mains pressurised instantaneous hot water system thermal store The Thermostatic Mixer can be installed with systems of this type with balanced pressures Pumped system The Thermostatic Mixer can be installed with an inlet pump twin impeller The pump must be installed on the floor next to t
5. a Thermostatic Mixer with independent selection of spray force and temperature The Thermostatic Mixer incorporates a wax capsule temperature sensing unit This 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 the desired level An override button allows the user to exceed the preset maximum temperature The flow control utilizes ceramic plate technology operating directly on the hot and cold inlets to provide precise control and isolation of the incoming water supplies Inlet filters are fitted to protect the thermostatic control mechanism The Mira Excel Exposed Version has adjustable inlets to fit pipework centres between 150 mm and 155 mm Mira Excel An exposed shower control for connection to wall mounted or rear entry pipework Mira Excel B A built in shower control for connection to concealed pipework Patents and Design Registration Design Registration 3 003 921 3 003 922 Patents GB 2 291 693 France 0 694 721 E Germany 695 13 455 8 Guarantee For domestic installations Mira Showers guarantee the Mira Excel against any defect in materials or workmanship for a period of 5 years from the date of purchase shower fittings for one year For non domestic installations Mira Showers guarantee the Mira Excel against any defect in materials or w
6. and check for any leaks 18 Falling Supplies Outlet Cap ae 2 17 Follow the installation instructions 2 1 to 2 9 inclusive Outlet Blanking 2 18 Use the O Key to remove the outlet Plug nipple 2 19 Carefully lever the outlet cap from the outlet blanking plug in the shower control body 2 20 Use the O Key to remove the outlet blanking plug 2 21 Screw the outlet nipple complete with O seal into the hole previously blanked Tighten the outlet nipple with the O Key 2 22 Screw the outlet blanking plug complete with O seal into the outlet hole between the two inlet nipples Tighten the outlet blanking plug with the O Key 2 23 Fit the outlet cap correctly The matching contours of the outlet cap and shower control body must be aligned 2 24 Locate the Excel shower control on Te d End to the backplate w apered En 19 2 25 Use a suitable screwdriver to tighten the two screws in the backplate The screws will hold the shower control in position 2 26 Install the hot and cold supply pipes approximately 35 mm from the finished wall at 150 155 mm centres Use the installation template to ensure the pipes are in the right position 2 27 Follow the installation instructions 2 10 to 2 14 inclusive 2 28 Refer to section Reversed Inlet Connections and follow the installation instructions 1 2 to 1 10 Compression Nut inclusive This will put the cartridge assembly
7. 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 43 Wall Mounted Soap Dish White 1 1540 278 Chrome 1 1540 279 Wall mounted for use anywhere in or outside the showering area 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 notin use Maximum User Weight 150 kg 23 5 stone Note Must be installed onto a solid wall 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 This guarantee is in addition to your statutory rights and is subject to the following conditions e The guarantee applies solely to the original installation under normal use and to the original purchaser only 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 ou
8. of the hole required on the panel Bend the tabs outwards and use a spirit level to ensure that the hole is marked symmetrically Mark through the inner slots of the template Carefully cut the hole in the panel Note The support bracket requires a clearance depth of 58 mm with a finished wall thickness between 6 and 21 mm Fit the valve in position and mark the position of the holes for the support brackets Drill a 5 0 mm diameter hole at each of the marked positions 26 Bend tabs outwards and place spirit level on tabs to level the template Installation Mark through the slot in the Template template with a pencil 6 mm Minimum Depth 58 mm lt _ __ _ ____ gt Cc Clearance 21mm ft Maximum depth 5 6 5 7 5 8 Remove the outer sections of the building in shroud and fix the support bracket and valve in position using the 4 two M4 x 30 mm screws supplied W Fi J Align the hot and cold supply and top outlet pipes with the valve but do not secure the pipes M4 x 30 mm Screws Two holes in the back To complete the installation refer to ee sail Section Installation 3 Solid and help to iat the valve dry lined walls and follow steps 3 11 behind a partition wall to 3 23 Note The shower body has two fixing holes in the back face for securing to the rear face of the wall cavity or timber noggin REVERSED INLET
9. over the backplate Firmly push the concealing plate until it clips into position section Control Assembly 3 23 Install the shower fittings Refer to the shower fittings Installation and User Guide 24 Separate these two parts Concealing 4 Stud Partitions and Shower Enclosures Front Face The built in shower control is supplied with a support bracket that can be used to install the shower control into the front face of a stud partition wall structure or shower enclosures The front face installation of the support bracket is only practical where an applied surface finish e g plaster or tiles can conceal flanges of the bracket A foam seal is fitted to the concealing plate assembly to seal the bracket to the wall surface i e tiles This will provide a sufficient seal for most installations to prevent ingress of water into the wall cavity 4 1 Refer to section Installation 3 Solid and dry lined walls and follow steps Spirit Level 3 1 and 3 2 Bend tabs outwards and place spirit level on tabs to level the template 4 2 Use the installation template supplied to mark the size of the hole required on the panel Bend the tabs outwards and use a spirit level to ensure that the hole is marked symmetrically Mark around the outside edge of the template Installation Mark around the 4 3 Carefully cut the hole in the panel Template a wina penci Note The support bracket
10. 08 020 1608 022 1608 023 451 71 1608 010 1608 011 ASE 1608 610 1608 011 451 67 451 86 41 Excel B 7 N g 451 72 Y Na 6 f S gt giz a ee Y VCN Y ILON tS N 42 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 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 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 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 Folds up when not in use Maximum User Weight 127 kg 20 stone Note Must
11. CONNECTIONS The Excel is supplied with inlet connections hot left cold right and bottom outlet The Excel B is supplied with inlet connections hot left cold right and top outlet as standard If the hot and cold water supply pipes have been reversed during installation the following procedure must be performed 1 1 1 2 1 3 Isolate the hot and cold water supplies to the shower control Turn the flow knob fully anticlockwise to drain any water Carefully pull off the temperature knob indicator trim and flow lever Remove the shroud Note The red and blue pillars identify the correct hot and cold inlets for the cartridge 27 1 4 1 5 1 6 1 7 1 8 1 9 Remove the four cartridge retaining screws Pull out the cartridge Do not remove the metal plate from the cartridge assembly Any residual water will drain from the body Caution Take care not to damage the two inlet seals or the large cartridge seal Rotate the cartridge through half a turn 180 and insert it back into the shower control body The blue pillar should now be on the left side of the shower control When re inserting the cartridge make sure that the large cartridge seal is first located in the shower control body Fit the four screws that retain the cartridge Refit the shroud Refit the controls Refer to section Control Assembly 1 10 Restore the hot and cold water supplies and check for any leaks Make sure that the large cartr
12. Maximum temperature setting Warning Operation of the override button will allow a shower temperature above the preset maximum To override the preset maximum temperature depress the override button and turn the temperature knob anticlockwise 34 Temperature Knob FAULT DIAGNOSIS Provided that the shower control has been correctly installed and is operated in accordance with the instructions contained in this guide difficulties should not arise If any maintenance is required then it must be carried out by a competent tradesperson for whom the fault diagnosis chart and maintenance instructions are provided Before replacing any parts make sure that the underlying cause of the malfunction has been identified Key A Instantaneous Gas Heated Showers B Unvented Mains Pressure and Thermal Store Systems C Gravity Systems Pumped Systems Malfunction Cause Remedy A B C No flo w l o w Spray plate assembly flow rate and or blocked unstable fluctuating temperature Incorrect spray plate fitted Partially closed stop or servicing valve in supply pipe work to shower control Instantaneous boiler cycling on and off as flow rate pressure too low Head of water below minimum required Inlet strainer blocked Clean the spray plate Refer to the shower fitting maintenance guide Fit high capacity spray plate Open valve
13. Naas Road Clondalkin Dublin 22 M Mira is a registered trade mark of Kohler Mira Limited The company reserves the right to alter C product specifications without notice FM 14648 SHOWERS J 1068628 W2 E 1518 44 Kohler Mira Limited May 2012
14. ainable temperature from the shower control with the available hot water supply temperature FORCE will DAMAGE the internal components of the cartridge assembly Note It may be easier to put the hub back onto the spindle to enable you to turn it 1 8 Turn off the shower 1 9 Refit the temperature hub so that the two small lugs on its front align with the arrows on the top and bottom on the temperature indicator trim as shown ensuring that the stop on the rear of the hub is at the 12 O clock position 1 10 Rotate the temperature hub clockwise approximately 90 degrees as shown and refit the securing screw and the temperature knob Check that the temperature knob can be rotated fully in both directions approximately 3 4 of a full turn i e full cold to hot set temperature Turn the shower on Check the temperature is correct and the override functions correctly If necessary repeat the procedure until the correct temperature is achieved 31 Clockwise to decrease temperature Za Anticlockwise to increase temperature Arrows Rear Face of Hub Stop Front Face of Hub Temperature Hub Temperature Hub Securing Screw 2 Maximum Temperature Settings for Reversed Inlet Connections Refer to section Commissioning 1 Maximum temperature setting sections 1 1 to 1 8 for the initial setting 2 1 2 2 2 3 Refit the temperature hub so that the two small lugs on the front a
15. an 12 C above the required shower blend temperature Instantaneous boiler not igniting because the water flow rate is too low Instantaneous boiler not igniting because the water pressure is too low Cartridge inlet or outlet seals missing or damaged Pressure build up causing damage to the cartridge This may be due to domestic hot water expansion Pressure build up This may be due to domestic hot water expansion 37 Adjust the hot water temperature or wait for the water to reheat if stored system Fit high capacity spray plate Increase flow rate through the system Check the cartridge inlet filters clean or replace Contact boiler manufacturer Increase water pressure Contact boiler manufacturer Fit new seals Fit domestic hot water expansion vessel If one already fitted it may be deflated and require repressurization If necessary fit new cartridge Fit domestic hot water expansion vessel If one already fitted it may be deflated and require repressurization Excel noisy during operation Only full hot or full cold available Unable to turn off flow Unable to rotate flow knob High inlet supply pressures Unbalanced inlet supply pressures High inlet supply pressures Reversed inlet supplies Inlet strainer blocked Control knobs fitted incorrectly Maximum maintained pressure for shower should not exceed 5 bar If greater fit a
16. as been set under ideal installation conditions at the factory The temperature stop is set to 41 C and depressing the override will increase the temperature by 5 C to approximately 46 C Site conditions and personal preference may make it necessary to reset these temperatures Note An adequate supply of hot water at least 12 C above the required temperature must be available for correct operation of the shower control LA Af 1 1 Turn the temperature knob to the full o fa 2 hot position Do not depress the a A override button LA a 1 2 Adjust the flow control to give a typical shower force and allow the temperature to stabilise Vi j 1 3 Measure the water temperature Flow Lever Temperature Knob If the temperature is satisfactory then no adjustment is needed If adjustment is necessary continue with the commissioning procedure JA Zip 1 4 Turn the shower off and carefully pull off the temperature knob 1 5 Remove the temperature hub securing screw 1 6 Carefully remove the temperature hub Make sure that the wave washer remains in position S a oe Temperature Hub Hub Securing Screw 30 1 7 Turn the shower on Rotate the temperature spindle until the required temperature is obtained Turn the temperature spindle anticlockwise to increase the temperature or clockwise to decrease the temperature If resistance is felt DO NOT USE FORCE to rotate the spindle as this is the maximum obt
17. be sufficient to prevent pipe concealing plates fouling on the plumbing elbows Install the supply pipes The pipes must project 18 mm from the finished surface of the wall at 150 155 mm centres Note Use the installation template to ensure pipes are in the right position Finish the surface of the wall as required The recesses from which the pipes emerge must also accommodate the 32 mm diameter x 10 mm deep flanges on the pipe concealing plates Fit the pipe concealing plates over the hot and cold supply pipes Thoroughly flush the hot and cold water supply pipes The supplies must be clean and free from debris before connecting the shower control Failure to do so may result in product malfunction 1 10 Slide the compression nuts and olives over the supply pipes 14 18mm from finished wall surface 32mm a Concealing Plates Olive Compression Nut Backplate 1 11 Locate the Excel shower control on to the backplate and supply pipes and hold it in position Note Align the adjustable inlets to aid location onto the pipework 1 12 Use a suitable screwdriver to tighten the two screws in the backplate The screws will hold the shower control in position 1 13 Use a suitable spanner to tighten the compression nuts anticlockwise rotation when viewed from front Protect the chromium plated surfaces with a cloth Do not o
18. e fitted level and the compression fittings can be easily tightened Drill a 6 0 mm diameter hole at each of the marked positions and insert the wall plugs supplied Note For stud partition installations alternative fixings may be required Alternatively the shower body can be secured to the rear face of the wall cavity or to a timber noggin Align the holes in the support brackets with the holes in the wall and secure the unit with the two fixing screws supplied 3 10 Remove all three sections of the building in shroud Align the hot and cold supply and top outlet pipes with the valve but do not connect to the valve 22 6 mm Minimum Depth Finished wall surface Support Bracket Finished wall surface 23 mm Maximum depth 58 mm Support Bracket Fixing Holes Fixing Screws 3 11 Remove the support bracket and valve unit from the wall and thoroughly flush the hot and cold water supply pipes P Note The supplies must be clean and free from debris before connecting the shower control Failure to do so may result in product malfunction Note The Excel B is supplied with inlet connections hot left cold right and top outlet as standard For installations with reversed hot and cold refer to section Reversed inlet connections Compression Nut Olive Threads 3 12 Loosely attach the c
19. ed A 451 76 Seal Pack components identified B 451 77 Screw Pack not illustrated 451 81 Temperature Knob Flow Lever Assembly chrome 451 82 Temperature Knob Flow Lever Assembly satin chrome 451 83 Temperature Knob Flow Lever Assembly white gold 451 86 Installation Template 451 88 Backplate chrome 451 89 Backplate satin chrome 553 35 Outlet Nipple chrome 553 54 Outlet Nipple light golden 466 01 Compression Fitting Kit chrome 466 02 Compression Fitting Kit gold 1608 010 Blank Plug Pack chrome 1608 011 Blank Plug Pack gold 1608 019 Outlet Blank Plug chrome 1608 020 Outlet Blank Plug gold 1608 022 Body Assembly chrome includes 1608 024 1608 023 Body gold 1608 024 Adjustable Nipple Assembly chrome 1608 025 Adjustable Nipple Assembly gold Excel B 451 61 Building in Shroud 451 62 Temperature Knob Flow Lever Assembly white 451 63 Temperature Knob Flow Lever Assembly chrome 451 64 Temperature Knob Flow Lever Assembly satin chrome 451 65 Temperature Knob Flow Lever Assembly white gold 451 67 Hub Pack 451 69 Concealing Plate chrome 451 70 Concealing Plate gold 451 71 Cartridge Assembly Filters 451 72 Inlet Filters 451 73 Component Pack components identified A 451 76 Seal Pack components identified B 451 77 Screw Pack not illustrated 451 78 Installation Template 466 03 Body 466 04 Support Bracket 40 Excel 1608 024 A 1608 025 1608 019 16
20. ed Guarantees A selection of protection plans are available that enable you to cover repair bills excludes Eire Ring 01922 471763 for more details X Helpdesk Service Ring our Customer Services Team for product advice to purchase spare parts or accessories or to set up service visit You can contact us via phone or e mail details below Please provide your model name power rating if applicable and date of purchase Mira Showers Website www mirashowers co uk Visit our website to register your guarantee download user guides diagnose faults purchase our full range of accessories and popular spares or request a service visit Spares and Accessories We hold the largest stocks of genuine Mira spares and accessories Contact us for a price or visit our website to purchase items from our accessory range and popular spares Service Repairs No one knows our products better than our nationwide team of Service Technicians We can carry out service or repair work to your product both during and after the guarantee period Ask about our fixed price service repairs To Contact Us UK 0844 571 5000 Fax 01 242 282595 E mail Visit www mirashowers co uk contactus Mira Customer Services Dept Cromwell Road Cheltenham Gloucestershire GL52 5EP To Contact Us Eire Only 01 459 1344 Fax Dublin 01 459 2329 E mail sales modernplant ie Modern Plant Ltd Dublin Otter House
21. he hot water cylinder 30 60 N gt Air Separation 11 INSTALLATION General Installation must be carried out in accordance with these instructions and must be conducted by designated qualified and competent personnel The installation must comply with the Water Supply 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 information given in section Specifications The Mixer must not be installed in an area where it may freeze For stud partitions alternative fixings may be required Isolating valves must be installed close to the Mixer for ease of maintenance Pipework must be rigidly supported and avoid any strain on the connections Pipework dead legs should be kept to a minimum Supply pipework layout should be arranged to minimise the effect of other outlet usage upon the dynamic pressures at the Mixer inlets Inlet and outlet threaded joint connections should be made with PTFE tape or liquid sealant Do not use oil based non setting joint compounds To eliminate pipe debris it is essential that supply pipes are thoroughly flushed Ogee NS N through before final connection 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
22. holes Tighten the blanking plugs using the O Key or suitable screwdriver Inlet Nipple Bolts 2 10 Locate the Excel shower control on to the backplate 2 11 Use a suitable screwdriver to tighten the two screws in the backplate The screws will hold the shower control in position Do not overtighten the screws 17 2 12 Install the hot and cold supply pipes approximately 35 mm from the finished wall at 150 155 mm centres Use the installation template to make sure the pipes are in the right position Note The Excel is supplied with inlet connections hot left cold right and bottom outlet as standard For installations with reversed hot and cold supplies complete the installation and refer to section Reversed Inlet Connections Note Thoroughly flush the hot and cold water supply pipes The supplies i 2 must be clean and free from debris Compression Nut C before connecting the shower control 2 Failure to do so may result in product S U gt malfunction 2 13 Slide the compression nuts and O olives over the supply pipes wal ac 2 14 Insert the hot and cold supply pipes fully into the inlet nipples and slide Ea iaeieietan the olives and compression nuts into La Template place Note Align the adjustable inlets to aid location onto the pipework 2 15 Use a suitable spanner to tighten the compression nuts Protect the chromium plated surfaces with a cloth 2 16 Turn on the water supplies
23. idge seal is first located in the shower control body Cartridge Cartridge Retaining Screw Shroud Control Assembly 28 CONTROL ASSEMBLY The procedure below details the steps required to fit the control assembly and is applicable to both the exposed and built in models 1 Make sure that the temperature hub is piue turned to the position illustrated and that the flow stop is at the bottom Note If the red and blue pillars are reversed due to reversed inlet Temperature connections the flow stop will be Hub positioned at the top Flow Stop 2 Make sure that the flow control lever carrier is turned fully clockwise to the off position Flow Lever 3 Fit the flow lever in the position shown Make sure that the stop ring is fitted to the flow lever as shown on the inset diagram Note If the red and blue pillars are reversed due to reversed inlet connections remove the stop ring rotate 180 and refit Check the free movement of the flow lever DO NOT FORCE Refer to the section Operation for details 4 Fit the indicator trim making sure that a the arrows line up with the hub and the stop is positioned as shown Override Button 5 Fitthe temperature knob making sure that the override button is opposite the flow lever as shown Temperature Knob 29 COMMISSIONING 1 Maximum temperature setting All Mira Excel shower controls are fully performance tested and the maximum temperature h
24. let be positioned above and to one side of the shower control This is to prevent the flexible hose from obstructing the temperature and flow knobs of the shower control For further information on the installation of the shower fittings refer to the Installation and User Guide peated BIV Outlet 3 3 If installing the shower into a solid wall mark an opening sufficient to accommodate the shower control approximately 245 mm x 145 mm on the surface of the wall Spirit Level Alternatively if installing the oe shower into a dry lined wall use a the installation template and mark around the outside edge 145 mm 7 J 245 mm lt Installation ae Template S g i o SF Bend tabs outwards and place the spirit level on tabs to level the template 21 3 4 3 5 3 6 3 7 3 8 3 9 Mark the route of the supply and outlet pipes Remove the plaster and brick block for the shower control to a depth between 64 and 81 mm from the finished surface of the wall The shower body requires a clearance depth of 58 mm with a finished wall surface thickness between 6 and 23 mm Note The maximum and minimum depth levels are indicated on the outer sections of the building in shroud Remove the plaster and brick block for the supply and outlet pipes Mark the support bracket fixing hole positions The support brackets should be positioned so that the valve can b
25. lign with the arrows on the top and bottom on the temperature indicator trim ensuring that the stop on the rear of the hub is at the 6 O clock position Rotate the temperature hub clockwise approximately 90 degrees as shown and refit the securing screw and the temperature knob Check that the temperature knob can be rotated fully in both directions approximately 3 4 of a full turn i e full cold to hot set temperature Turn the shower on Check the temperature is correct and the override functions correctly If necessary repeat the procedure until the correct temperature is achieved 32 Arrows Rear Face of Hub Temperature Temperature Hub Securing Screw 3 Temperature override button disable The Excel incorporates a temperature override button that allows the user to override the preset maximum temperature The following procedure can be used to disable the override button limiting the maximum temperature available to the preset value This setting is recommended for the young the elderly the infirm or anyone inexperienced in the correct operation of the controls 3 1 Carefully pull off the temperature knob 3 2 Unclip the concealed end of the override button from the temperature indicator trim and carefully remove the override button Note Using the tab will help with the removal of the override button 3 3 Rotate the override button through half a turn 180 and refit Make sure that the ove
26. ompression nuts and olives 3 13 Fit the support bracket and valve unit in to the wall with the two fixing screws 3 14 Insert the hot and cold supply and top outlet pipes through the compression nuts and olives Ensure that each pipe is pushed fully into the valve Note For falling inlet supplies the outlet pipe may have to be set deeper into the wall 3 15 Hold each pipe in position and use a suitable spanner to tighten the compression nuts 3 16 Turn on the water supplies and check for any leaks on both the inlet and the outlet connections 23 3 17 Refit the three building in shroud sections that you removed earlier Secure the shroud in position with the screws 3 18 Plaster and tile as necessary up to the sides of the building in shroud Make sure that the finished tiled wall surface is within the FINISH arrow on the building in shroud 3 19 When the plaster tiles have set remove the screws and pull the entire building in shroud away Note Retain the screws for later use 3 20 Remove the backplate from the 3 21 3 22 Fit the control assembly refer to Shower fittings concealing plate Remove the protective film from foam seal and fit in position with the four fixing screws supplied Do not overtighten the screws Note If the finish is particularly uneven i e due to grout lines apply a small amount of silicone sealant to ensure a seal Fit the shroud and concealing plate
27. orkmanship for a period of one year from the date of purchase For terms and conditions refer to the back cover of this guide If you experience any difficulty with the installation or operation of your new Thermostatic Mixer please refer to Fault Diagnosis before contacting Kohler Mira Ltd Our telephone and fax numbers can be found on the back cover of this guide Recommended Usage Application Domestic Light Commercial Heavy Commercial Healthcare Note Heavy duty shower fittings are available separately for use in Healthcare and Heavy Commercial applications for details contact Customer Services IMPORTANT SAFETY INFORMATION This Mira Excel is precision engineered and should give continued safe and controlled performance provided 1 Itis 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 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 difficulty understanding or operating the controls of any shower should be attended whilst showering Particular consideration should be given to the young the elderly the infirm or anyone inexperienced in the co
28. ote the orientation of the red and blue pillars on the cartridge assembly that identify the hot and cold inlets Normally the red pillar will be on the left unless the cartridge assembly has been rotated for reversed supplies 2 2 Insert the new cartridge assembly into the shower control body 2 3 Refer to sections Reversed Inlet Connections and Commissioning Follow the instructions to complete the installation of the new the cartridge assembly 3 Cartridge assembly O seals inlet strainers renewal 3 1 Refer to section Reversed Inlet Connections Follow the instructions to remove the cartridge assembly Note the orientation of the red and blue pillars on the cartridge assembly that identify the hot and cold inlets Normally the red pillar will be on the left unless the cartridge assembly has been rotated for reversed supplies 3 2 Renew the O seals as necessary 3 3 Use a suitable tool to remove the inlet strainers and clean or renew as necessary The inlet strainers must be fitted squarely and flush in the valve body If necessary flush the supply pipework to remove any residual debris 3 4 Insert the cartridge assembly into the shower control body 3 5 Refer to section Reversed Inlet Connections and follow the instructions to complete the installation of the cartridge assembly 39 SPARE PARTS Excel 451 67 Hub Pack 451 71 Cartridge Assembly Inlet Filters 451 72 Inlet Filters 451 74 Component Pack components identifi
29. r 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 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 improper use inappropriate cleaning 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 Accidental or wilful damage e Products purchased ex showroom display What to do if something goes wrong If your product does not work correctly refer to this manual for fault diagnosis and check that it is installed and commissioned in accordance with our instructions If this does not resolve the issue contact us for help and advice Extend
30. requires a clearance depth of 58 mm with a panel wall thickness of between eee 4 and 18 mm Ve The raised portion on the building iN Finished shroud can be used as a depth gauge wall surface Panel wall thicknesses in excess of R 58 mm Clearance 18 mm can be accommodated but a R 3 clearance will be required around the inlet and outlet connections to allow insertion of pipe and tightening of the compression nuts 6 mm Minimum Depth 4 18mm Wel Finished 4 4 To complete the installation refer to section Installation 3 Solid and asute dry lined walls and follow steps 3 4 E 23 mm to 3 23 Jenti Maximum depth pum 25 5 Laminated Panels and Shower Enclosures Rear Face The built in shower control is supplied with a support bracket that can be used to install the shower control onto the rear face of a laminated panel or preformed shower cubicle A foam seal is fitted to the concealing plate assembly to seal the bracket to the wall surface i e tiles This will provide a sufficient seal for most installations to prevent ingress of water into the wall cavity 5 1 5 2 5 3 5 4 5 5 Note This installation is only possible Spirit Level with a finished wall thickness between 6 and 21 mm Refer to section Installation 3 Solid and dry lined walls and follow instructions 3 1 and 3 2 Use the installation template supplied to mark the size
31. ressure 0 1 Bar 1 0 metre head when used with Mira shower fittings Maximum maintained pressure 5 0 Bar Maximum static pressure 10 Bar Note Nominally equal inlet supply pressures are recommended for optimum performance 2 Temperature Control 2 1 2 2 2 3 Close temperature control is provided between 35 C and 45 C Note The temperature control specification outlined below is achieved with the blend set between 35 C and 45 C with supply temperatures of 15 C cold and 65 C hot AND nominally equal inlet supply pressures The blended temperature is maintained within 2 C with a 10 C change in the hot or cold supply The wax capsule sensor effects a shut down to seepage in approximately 2 seconds if the cold supply fails Shut down to seepage is only achieved if the hot supply is 12 C above the blend temperature 3 Standards and Approvals 3 1 3 2 Designed to comply with BS EN 1111 and 1287 for thermostatic mixing valves and to be used within systems designed to BS6700 BS 6700 recommends 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 Mira Excel with Logic Fittings high capacity spray plate 50
32. rrect operation of the controls 6 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 PACK CONTENTS CHECKLIST I Tick the appropriate boxes to familiarize yourself with the part names and to confirm that the parts are included Excel Thermostatic Mixer 1 x Mira Excel O 2 x No 8 x 3 4 Screws O 2 x Pipe Concealing Plates O 2 x Wall Plugs O Documentation 1 x Installation and User Guide 1 x Customer Support Brochure 1 x Installation Template OOo Excel B Thermostatic Mixer 1 x Excel B O with building in shroud 1 x Concealing Plate Assembly O 2 x No 8 x 1 1 4 Screws O 1 x Knob Assembly O CC C 4 x M5 x 50 mm Screws 2 fitted O A A 2 x M4 x 30 mm Screws O Gu e 2 x Wall Plugs O Documentation 3 x Compression Nuts O 1 x Installation and User Guide 1 x Customer Support Brochure e S S 1 x Installation Template 3 x olives O OOO 134 208 100 Y i 150 155 Excel B 22 155 61 78 155 151 208 All dimensions in mm SPECIFICATIONS 1 Pressure Ranges 1 14 1 2 1 3 Minimum maintained p
33. rride button locates correctly in the temperature knob 3 4 Refit the temperature knob with the scale adjacent to the indicator on the indicator trim 3 5 Reversing the above procedure will enable the override button Override Button in enabled position Override Button in disabled position View from the rear of the View from the rear of the temperature knob temperature knob 33 1 1 1 2 1 3 OPERATION The Excel incorporates a temperature override button that allows the user to override the preset maximum temperature It is recommended that this facility is disabled for the young the elderly and the infirm or anyone inexperienced in the correct operation of the controls Refer to Section Commissioning 3 Temperature override button disable Turn the flow lever anticlockwise until the desired force of water is obtained Note When the Excel is installed with a fully modulating multipoint or combination type gas water heater the maintained mains water pressure and hence the flow must be sufficient to keep the heater ignited Therefore it is important to make sure that the flow knob is fully open to prevent variation in the hot water supply temperature Turn the temperature knob anticlockwise for warmer water or clockwise for cooler water The preset maximum temperature can be adjusted as required to suit both site conditions and the user s comfort Refer to section Commissioning 1
34. s Rear Face 26 Reversed Inlet Connections s sssesssunrennnnnrnnnnnnnnnunnnnnnnnnnnnnnnnnnnnnnnnn na 27 Control Assemb cearense seran EAA E NE 29 COMMISSIONING siscccccissssccecevcssceceevsssscceecssssecdecesseceee KENNAN NANNE nennu 30 1 Maximum temperature Setting cececeeceeeteeeeeeeeeteeeeeetneeeeeeeeaas 30 2 Maximum Temperature Settings for Reversed Inlet Connections 32 3 Temperature override button disable ceceeceeeeeeeeeeeteees 33 Operation vs cccsecceedsecdeccedcecsencnccdenceervensezesensdddeeecied caeceenvensassecneelenedecerdanveets 34 Fault DidQnOSiS ccccccccccsccesccccceeeesscccetecsscccctenescccssecescccadseresseaczseessecestrerses 35 MaintOnanes rnana 39 1 GIG ANIA G est sta eeces ceeded E E a eect eta tte eee 39 2 Cartridge assembly renewal ccccecceeeeeseeeeeeeeecneeeeeeeneeeeeeeeaas 39 3 Cartridge assembly O seals inlet strainers renewal 06 39 Spare PANS ccc cece cecesescisccensaataneverensstsestsss seneencudarsecseeansssesedenteduuessceiiernasan 40 ACCESS OMICS 5s foe cece seek cece Secor ces edb c ces E coves ERRER SE 43 CUSTOMER SOVICO yssiran ben steeccdct onctece dente ced eecnnt tte evceunctsscvensectnedeceseenass 44 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 Excel is
35. shower tray bath and the handset 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 12 Hose Retaining Ring EO E F Spil Over Level Excel 1 Back inlet supplies rising or falling concealed pipework 1 1 1 2 1 3 1 4 Use the installation template to mark the positions of the holes for the backplate and the pipe centres For solid walls drill the backplate holes with a 6 mm diameter drill and insert the wall plugs supplied For other types of wall structure alternative fixing may be required Use the two No 8 x 1 3 4 fixing screws supplied to fix the backplate to the wall Make sure that the two angled fixing holes are at the bottom of the backplate Use a spirit level and pencil to mark the route of the hot and cold water supply pipes at 150 155 mm centres Note The Excel is supplied with inlet connections hot left cold right and bottom outlet as standard For installations with reversed hot and cold supplies complete the installation and refer to section Reversed Inlet Connections 13 Spirit Level Installation Template Wall Plug Backplate 1 5 1 6 1 7 1 8 1 9 Remove the plaster and brick block to the required depth to conceal the pipework Note Depth must
36. the indicator trim and the temperature knob in the correct orientation for hot left and cold right inlet supplies Note For falling supplies where the hot and cold inlet pipes have been reversed only the indicator trim and the temperature knob need to be removed and reinstalled the correct way up Refer to section Reversed Inlet Connections Installation Template 2 29 Turn on the water supplies and check for any leaks Shower fittings 2 30 Install the shower fittings Refer to the Installation and User Guide for the shower fittings 20 Excel B 3 Solid and dry lined walls Read the section Installation Requirements first The built in shower control is supplied with a support bracket that can be used to install the shower control into a solid or dry lined wall structure A foam seal is fitted to the concealing plate assembly to seal the bracket to the wall surface i e tiles This will provide a sufficient seal for most installations to prevent ingress of water into the wall cavity 3 1 Determine the route for the incoming hot and cold supply pipework Outlet Pipe BIR o Note For some installations the valve may want to be completely sealed within the wall and a cavity BIV Oule t Q gt seal is available as an accessory Hot Inlet Het 71 Cold Inlet 3 2 Determine the route for the outlet O pipework When connecting to the Shower Control biv shower fittings it is recommended that the out
37. vertighten 1 14 Turn on the water supplies and check for any leaks Shower fittings 1 15 Install the shower fittings Refer to the Installation and User Guide for the shower fittings 15 2 Exposed supplies rising or falling surface pipework Rising Supplies Installation Template 2 1 Use the installation template to mark the positions of the holes for the backplate and the pipe centres 2 2 For solid walls drill the backplate holes with a 6 mm diameter drill and insert the wall plugs supplied For other types of wall structure alternative fixing may be required Wall Plug Backplate 2 3 Fix the backplate to the wall withthe two fixing screws supplied Make sure that the angled fixing holes are at the bottom of the backplate Fixing Screw Inlet Nipple Bolts pes 2 4 Use the O Key or a suitable screwdriver to remove the blanking plugs from the rising supply inlets 2 5 Use the O Key to remove the inlet nipple bolts from the rear supply inlets Washer O Key 2 6 Remove the inlet nipples A 3 gt Blanking Plugs 16 2 7 Align and fit the inlet nipples complete Blanking Plugs with O seals into the rising supply A inlets Washers o 2 8 Fit and tighten the inlet nipple bolts with the O Key Note The nipple will still float when the bolt has been tightened 2 9 Screw the blanking plugs complete Inlet Nipples with washers into the rear supply inlet nipple
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