InstallatIon & User GUIde thermostatIc mIxers mIra
Contents
1. MIRA STYLUS amp MIRA MINILUXE THERMOSTATIC MIXERS INSTALLATION amp USER GUIDE These instructions must be left with the user CONTENTS INTRODUCTION Introduction Patents Safety Warnings Pack Contents Specifications Pressures Temperatures Thermostatic Shut down Connections Dimensions Installation Suitable Plumbing Systems General Installing the Thermostatic Mixer Commissioning Maximum Temperature Setting Operation Operating the Divertor Flow Control Temperature Control User Maintenance Fault Diagnosis Lubricants Cleaning Notes Spare Parts Customer Service Nnooun unwan au4 kh ODM ND h A AR AAA i m ONNNN S224 42 4 N 14 Back Page If you experience any difficulty with the installation or operation of your new thermostatic mixer please refer to Fault Diagnosis before contacting Kohler Mira Ltd Our contact details can be found on the back cover of this guide 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 Stylus and Mira Miniluxe are thermostatic mixers which have separate flow and temperature controls The Mira Stylus ER and Mira Miniluxe ER are exposed valves supplied with a rigid riser to a deluge head The Mira Stylus ERD is an exposed valve supplied with a r2. 25 1 Screw the hose onto the outlet of the divertor making sure that the hose seal is fitted 25 2 Pass the flexible hose through the hose retaining ring and screw the remaining end of the hose onto the showerhead making sure that the hose seal is fitted 25 3 Place the showerhead in the clamp bracket 26 Make sure that the hose washer is fitted and screw the deluge head onto the rigid riser overhead pipe Rigid Riser Overhead Pipe Hose Washer Deluge Head Doce 27 Turn on the hot and cold water supplies and check for leaks 28 Before using the shower refer to section Commissioning COMMISSIONING OPERATION Maximum Temperature Setting Before using the shower the maximum temperature must be checked to make sure that it is at a safe level It has been preset to approximately 43 C at the factory but due to variations in site conditions the maximum temperature may need adjustment Note Make sure that the hot water temperature is at least 55 C and that there is sufficient supply 1 Turn on the mixer to the maximum temperature i e fully clockwise and allow the temperature to stabilise 2 Testthatthe temperature of the water from the shower outlet is hot enough If the temperature is too hot or too cold adjust as follows 3 Carefully remove the concealing cap using a suitable tool i e stanley knife thin blade 4 Loosen the securing screw do not remove fully and pull d
3. SERVICE Guarantee of Quality Mira Showers guarantee your product against any defect in materials or workmanship for the period shown in the Guarantee Registration Document included with your shower Alternatively to confirm the applicable guarantee period please contact Customer Services To validate the guarantee please return your completed registration card Within the guarantee period we will resolve defects free of charge by repairing or replacing parts or modules as we may choose To be free of charge service work must only be undertaken by Mira Showers or our approved agents Service under this guarantee does not affect the expiry date The guarantee on any exchanged parts or product ends when the normal product guarantee period expires Not covered by this guarantee Planned maintenance or replacement parts required to comply with the servicing requirements of the TMV 2 and TMV 3 healthcare schemes Damage or defects arising from incorrect installation improper use or lack of maintenance including build up of limescale Damage or defects if the productis taken apart repaired or modified by any persons not authorised by Mira Showers or our approved agents This guarantee is in addition to your statutory and other legal rights What to do if something goes wrong If when you first use your shower it doesn t function correctly first contact your installer to check that installation and commissioning are satisf
4. a pro forma invoice will be sent All spares are guaranteed for 12 months from date of purchase Spares that have been supplied directly from us can be returned within one month from date of purchase providing that they are in good order and the packaging is unopened Note Returned spares will be subject to a 15 restocking charge and authorisation must be obtained before return Please contact our Customer Services Team Note In the interests of safety spares requiring exposure to mains voltages can only be sent to competent persons Service Our Service Force is available to provide a quality service ata reasonable cost You will have the assurance of a Mira trained engineer agent genuine Mira spare parts and a 12 month guarantee on the repair Payment should be made directly to the engineer agent using Visa MasterCard or a cheque supported by a banker s card To Contact Us England Scotland Wales and Northern Ireland Mira Showers Customer Services Telephone 0870 241 0888 Mon to Fri 8 00 am 5 30 pm Sat 8 30 am 3 30 pm E mail technical mirashowers com Fax 01242 282595 By Post Cromwell Road Cheltenham Gloucestershire GL52 5EP Eire Modern Plant Ltd Dublin Telephone 01 459 1344 Mon to Fri 9 00 am 5 00 pm E mail sales modernplant ie Fax Dublin 01 459 2329 Post Otter House Naas Road Clondalkin Dublin 22 Modern Plant Cork Telephone 021 496 8755 Mon to Fri 9 00 am 5 00 pm E mail
5. should be given to the young the elderly the infirm or anyone inexperienced in the correct operation of the controls Rapid Excessive movement of the flow and or temperature control levers may result in momentary unstable blend temperatures Care is required when adjusting flow diverting to different outlets or adjusting temperature Make sure that the temperature has stabilised Do not remove or tighten the body grubscrews Caution Do not remove or tighten these grubscrews Ny Care must be taken when positioning the thermostatic mixer Make sure that there is sufficient headroom and ceiling clearance to install the rigid riser rail and overhead pipe Caution Do not cut the rigid riser rail 10 When this product has reached the end of its serviceable life it should be disposed of in a safe manner in accordance with current local authority recycling or waste disposal policy PACK CONTENTS Sees U 2 x Fixing Screws Tick the appropriate boxes to familiarise yourself v with the part names and to confirm that all of the 6 gt 0 parts are included OI 1 x Rigid Riser Rail supplied in 2 parts on some models O 1 x Securing Bracket U 1 x Securing Bracket Cover Ol 1 x Pin U 1 x Rigid Riser Overhead Pipe L 1 x M4 x 12 mm Grubscrew OO O 2x Olives RRs O 4 x Wall Plugs RWHP U 4 x Fixing Screws i VA OD 1x2mm Hexagonal
6. soap solution rinsed and then wiped dry with a soft cloth Warning Many household cleaners contain abrasive and chemical substances and should not be used for cleaning plated or plastic fittings These finishes should be cleaned with a mild washing up detergent or soap solution and then wiped dry using a soft cloth Use your thumb or a soft cloth to wipe any limescale from the soft nozzles and the front surface of the showerhead spray plate Do not use descalents on this product NOTES 13 SPARE PARTS 1660 176 Concealing Cap Assembly Miniluxe 1663 265 Flow Regulator Pack 1660 150 Backplate 1660 151 Concealing Plate 1660 152 Filter Pack x2 C 1660 153 Inlet Nuts amp Olives x2 1660 154 Mixer Valve Assembly Not illustrated 1660 159 Screw Pack 1660 175 Seal Pack 14 1660 164 Concealing Cap Assembly Stylus 1660 177 Outlet Connector Stylus ERD 1660 157 1660 182 Flow Knob Pack Flow Knob Pack Miniluxe Stylus 1660 155 1660 182 Temperature Knob Temperature Knob Pack Miniluxe Pack Stylus 1660 162 Fixing Pack DS We G 1660 160 EG Rigid Riser Overhead Pipe 1660 161 Deluge Head 1660 163 Rigid Riser Rail S DI 1663 190 Showerhead 1603 137 Flexible Hose 1660 172 1660 178 Clamp Bracket Compression Nut amp Olive 1660 173 1660 165 Hose Retaining Divertor Assembly Ring 15 CUSTOMER
7. Flow Regulator 15 For ERD models fit the divertor onto the mixer of wall structure alternative fixings may be outlet and tighten the M4 x 6 mm grubscrew required not supplied with a 2 mm hexagonal key supplied 19 Secure the securing bracket to the wall using The divertor must be fitted as illustrated with the screws supplied the divertor knob at the front and the outlet to the right of the mixing valve Securing Bracket Fixing Screws Securing Bracket Cover Rigid Riser s Overhead Pipe Rigid Riser Rail Spirit Level CD e 20 For ER models slide the concealing plate compression nut and olive onto the rigid riser rail and locate it into the mixer outlet 21 For ERD models slide the clamp bracket hose retaining ring compression nut and olive onto the rigid riser rail and locate it into the divertor outlet 22 Make sure that the securing bracket cover is fitted onto the rigid riser overhead pipe then fix the pipe to the securing bracket with the pin Screw the securing bracket cover over the securing bracket 23 Tighten the compression nut using a suitable spanner Note Hold the divertor in position whilst tightening the compression nut 24 For ER models slide the concealing plate down the rigid riser rail to cover the compression nut Securing Bracket Securing Bracket Cover Concealing Plate Hose Seal 25 For ERD models
8. Key 1 x Deluge Head amp Seal OR 1 x Deluge Head amp Seal U 1 x Divertor Assembly inc Nut Olive amp M4 x 6 mm Grubscrew U 1 x EV Fittings Kit C 4x2mm Hexagonal Key 1 x Concealing Plate g Mira Stylus ERD I 1 x Thermostatic Mixer supplied fitted to the backplate Mira Stylus EV Mira Miniluxe E Documentation 1 x Guarantee Registration Document SPECIFICATIONS Pressures Max Static Pressure 10 Bar Max Maintained Pressure 5 Bar Min Maintained Pressure Gravity System 0 1 Bar 0 1 bar 1 Metre head from cold tank base to showerhead outlet Note For gravity fed other low pressure systems 0 5 bar or below remove the outlet flow regulator Refer to section Installation Flow Regulator For optimum performance supplies should be nominally equal Temperatures 9 Factory Pre set Blend Shower 43 C 9 Optimum Thermostatic Control Range 35 C to 43 C achieved with supplies of 15 C cold 65 C hot and nominally equal pressures Recommended Hot Supply 60 C to 65 C Note The mixing valve can operate at higher temperatures for short periods without damage however this could detrimentally affect thermostatic performance For safety and performance reasons it is recommended that the maximum hot water temperature is limited to 65 C Cold Water Range up to 25 C Minimum Recommended Different
9. SER MAINTENANCE If you require a Mira trained service engineer or agent refer to section Customer Services Fault Diagnosis Symptom Only hot or cold water from the mixer outlet Outlet temperature too hot too cold Cause Rectification Inlets reversed hot supply to cold supply Rework inlet pipework No hot water reaching mixer Check the filters for any blockage Installation conditions outside operating parameters refer to sections Specifications and Commissioning Symptom Fluctuating or reduced flow rate Cause Rectification Check the showerhead hose and filters for any blockage Make sure that the maintained inlet pressures are nominally balanced and sufficient refer to section Specifications Make sure that the inlet temperature differentials are sufficient refer to section Specifications Flow regulator fitted incorrectly Air lock or partial blockage in the pipework Symptom Water leaking from showerhead Cause Rectification Normal for a short period after shut off Check that the pressures are not in excess of the specifications for the product Renew the mixer valve assembly 12 Lubricants Silicone based lubricants must only be used on the rubber seals Caution Oil based or other lubricant types may cause rapid deterioration of seals Cleaning The chrome plated parts should be cleaned using a mild washing up detergent or
10. actory and in accordance with the instructions in this manual We are on hand to offer you or your installer any advice you may need Should this not resolve the difficulty simply contact our Customer Services Team who will give every assistance and if necessary arrange for our service engineer to visit If the performance of your shower declines consult this manual to see whether simple home maintenance is required Please call our Customer Services Team to talk the difficulty through request a service under guarantee if applicable or take advantage of our comprehensive After Sales service As part of our quality and training programme calls may be recorded or monitored Our Customer Services Team is comprehensively trained to provide every assistance you may need help and advice spare parts or a service visit 5 013181038347 gt 1083351 W2 B B94F 1663 Mira is a registered trade mark of Kohler Mira Limited The company reserves the right to alter product specifications without notice www mirashowers com Spare Parts We maintain an extensive stock of spares and aim to provide support throughout the product s expected life Spares can be purchased from approved stockists or merchants locations on request or direct from Customer Services Spares direct will normally be despatched within two working days Payment can be made by Visa or MasterCard at the time of ordering Should payment by cheque be preferred
11. cork modernplant ie Fax 021 496 8607 Post Tramore Road Cork mira _ SHOWERS FM 14648 Kohler Mira Limited April 2008 plumbworld Big brands small prices Pdf Supplied By http www plumbworld co uk
12. e hole at the bottom is loosely fitted over the mixing valve inlets and align the mixer with the inlet nuts Push on fully and tighten the grubscrews to secure the mixer to the backplate Make sure that the grubscrews are engaged fully in the valve body grooves Concealing Plate Inlet Filters 13 Push the concealing plate onto the backplate secure with the M4 x 12 mm grubscrew Single grubscrew secures the top inlet to the backplate Two grubscrews secure both the bottom inlet and the concealing plate to the backplate 14 Important A 12 litre minute flow regulator is 16 Screw the rigid riser rail into the rigid riser fitted inside the outlet This can be removed overhead pipe for gravity fed other low pressure systems Note If your rigid riser rail is supplied in two 0 5 bar or below parts first screw them together 17 Locate the rigid riser rail into the divertor mixing valve outlet and the rigid riser overhead pipe into the securing bracket make sure that they are pushed fully home Important Align the rigid riser overhead pipe with the securing bracket using the pin Use a spirit level to make sure that the rigid riser rail is vertical and mark the position of the fixing holes for the securing bracket on the wall Caution Do not cut the rigid riser rail 18 For solid walls drill the fixing holes for the securing bracket with a 6 mm drill and insert the wall plugs supplied For other types Outlet
13. e with balanced pressures Recommended Minimum Maintained Pressure 1 0 Bar Unvented Mains Pressure System The thermostatic mixer can be installed with an unvented stored hot water system Pumped System The thermostatic mixer can be installed with an inlet pump twin impeller The pump must be installed in a suitable location and in accordance with its instructions 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 1 The Mixer must not be installed in an area where it may freeze 2 For stud partitions alternative fixings may be required 3 Isolating valves must be installed close to the Mixer for ease of maintenance 4 Pipework must be rigidly supported and avoid any strain on the connections 5 Pipework dead legs should be kept to a minimum 6 Decide on a suitable position for the Mixer make sure that there is sufficient headroom and ceiling clearance to install the rigid riser rail and overhead pipe Caution Do not cut the rigid riser rail For ERD models the position of the Mixer and the Shower Fi
14. ial between Hot Supply and Outlet Temperature 12 C Thermostatic Shut down For safety and comfort the thermostat will shut off the mixing valve within 2 Seconds if either supply fails achieved only if the blend temperature has a minimum differential of 12 C from either supply temperature Connections The thermostatic mixer can only be installed with rear supply inlets and the supply pipework must be connected as follows 9 Hot Top side nearest flow control 15 mm compression Cold Bottom side nearest temperature control 15 mm compression Outlet 15 mm compression to rigid riser Note This product does not allow for reversed inlets and will deliver unstable temperatures if fitted incorrectly Hot Outlet Dimensions Cold 2 I I I I I 1 1 I 1 I I 1 I 1 I 1 1 Lo vr CEN Oo 2 TO 23 115 a ro GE j ao e TA 0 AA e All dimensions in mm OD BER INSTALLATION Suitable Plumbing Systems Gravity Fed The thermostatic mixer must be fed from a cold water cistern usually fitted in the loft space and a hot water cylinder usually fitted in the airing cupboard providing nominally equal pressures Mains Pressurised Instantaneous Hot Water System Combination Boiler The thermostatic mixer can be installed with systems of this typ
15. igid riser to a deluge head and a divertor assembly single mode showerhead and shower fittings kit 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 Patents and Design Registration Patents GB 2 340 210 2 392 223 2 392 224 Patent Applications Euro 1 672 257 US 2006 0124758 A1 Design Registration 000793401 00013 00014 00015 SAFETY WARNINGS Mira thermostatic mixers are precision engineered and should give continued safe and controlled performance provided 1 They are installed commissioned operated and maintained in accordance with manufacturer s recommendations Periodic attention is given when necessary to maintain the product in good functional order Caution 1 2 3 Read all of these instructions Retain this guide for later use Pass on this guide in the event of change of ownership of the installation site Follow all warnings cautions and instructions contained in this guide Anyone who may have difficulty understanding or operating the controls of any shower should be attended whilst showering Particular consideration
16. lustration serene 4 Loosen the 2 backplate grubscrews with the 2 mm hexagonal key supplied and pull the mixer and concealing plate from the backplate 5 Unscrew the inlet nuts from the backplate Large boss must be fitted at the bottom For solid walls drill the fixing holes for the backplate with a 6 mm drill and insert the wall plugs supplied For other types of wall structure alternative fixings may be required not supplied Drill the holes for the supply pipes and fit the supply pipework Hot to Top Inlet Cold to Bottom Inlet Note The inlet pipework should extend between 12 and 18 mm from the finished wall surface Caution Make sure that the pipework is not damaged otherwise the olives will not seal Fit the backplate over the inlet pipes and secure to the wall using the fixing screws supplied 10 Caution It is essential at this point 11 that the supply pipework is thoroughly flushed through before connection to the mixer Failure to do so may result in product malfunction and will not be covered under the guarantee Fit the olives onto the inlet pipework and tighten the inlet nuts using a suitable spanner Caution Do not overtighten Important Make sure that the inlet filters are fitted in the inlet nuts as illustrated Fixing Screws Filter Large boss must be fitted at the bottom 12 Make sure that the concealing plate with th
17. own the temperature lever to disengage from the control gear 5 Rotate the temperature lever anti clockwise one serration re engage with the control gear and return to the maximum temperature stop Check the temperature if it is still not hot enough repeat the procedure Temperature Lever Rubber EE Concealing Pull down and rotate Cap v the temperature lever to adjust the maximum SS temperature li Stanley Knife ee Thin Blade 6 Once the maximum temperature is satisfactory tighten the securing screw 7 Refit the concealing cap with the lug at the back i e nearest the wall make sure that the rubber seal is correctly fitted and the concealing cap is pushed fully on Caution Care is required when adjusting flow diverting to different outlets or adjusting temperature Make sure that the temperature has stabilised Operating the Divertor ERD Models Only The flow is switched between the deluge head the showerhead and both together by rotating the divertor knob Note On gravity fed other low pressure systems with both outlets operating the height of the handshower may affect the flow from the deluge head Flow Control Turn the flow lever anticlockwise to the maximum flow Temperature Control Turn the temperature control lever anticlockwise to decrease the temperature and clockwise to the preset maximum temperature Divertor Flow Control Temperature Control U
18. ttings must provide a minimum gap of 25 mm between the spill over level of the shower tray bath and the showerhead refer to illustration This is to prevent back siphonage Note Only use Shower Fittings recommended by the manufacturer or supplier H 25 mm Spill Over Level T Flow Regulator Site conditions will determine the flow regulator requirements For gravity fed other low pressure systems 0 5 bar or below remove the outlet flow regulator Outlet Flow Regulator Installing the Thermostatic Mixer 1 The thermostatic mixer must be fitted vertically as illustrated and can only be installed with rear supply inlets The supply pipework must be connected as follows Hot to Top Inlet Cold to Bottom Inlet Top Outlet Important This product does not allow for reversed inlets 2 Determine the route for the hot and cold supply pipework Important Make sure that there is sufficient headroom and ceiling clearance to install the rigid riser rail and overhead pipe Hot Cold Backplate Concealing Plate Inlet Nuts 6 Using the backplate as a guide mark the positions of the fixing holes and the pipe centres Important Make sure that there is sufficient headroom and ceiling clearance to install the rigid riser rail and overhead pipe Note Make sure that the backplate is the gr M correct way up refer to il
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