Installation and User Guide Bar ValVe ThermosTaTIc
Contents
1. Frequency of In service Tests Commercial non domestic installations Check for correct blend setting every 6 months Follow the procedure detailed in the flow diagram In service Test Procedure every 12 months 14 Y Measure and record supply temperatures and pressures Make sure that they are within Valve specifications Measure and record blend temperature and flow rate Has flow rate fallen Check and clean checkvalves significantly or fallen 4 strainers and outlet below minimum flow Yes specification Measure and record blend temperature and flow rate No Has flow rate Yes improved Carry out a performance check Refer to the commissioning procedure No Y Has the blend temperature changed by more than 2 C from Yes previous recorded value Refer to section Fault No Diagnosis Y Carry outthe commissioning procedure Note All measurements and results should be recorded in the Log Book Flow Diagram In service Test Procedure 15 Maintaining the Non Return Valves The Non Return Valves are located in the Bar Valve Body and are accessible through the Inlet Connectors Caution Make sure that the Non Return Valves are installed correctly to prevent crossflow or malfunction of the Valve 1 With the water supplies turned off and Flow Arrow t2. Bottom Outlet 72 BSP Male 74 BSP Connection to Bar Valve Connection to Pipework Note This product does not allow for reversed inlets Offset connector inlet centres are 150 mm 24 mm 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 For Type 2 Valves see also supply conditions in section Type 2 Valves 1 2 3 e The Bar Valve 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 Bar Valve 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 f
3. Asmall amount of water may be retained in the fitting after the shower control has been turned off This may drain over a few minutes This is quite normal Changing the angle of the shower fitting may vary the draining time Defective ceramic plates within the shower cartridge Renew the cartridge assembly 13 MAINTENANCE General This Product 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 If you require a Mira trained engineer or agent refer to section Customer service 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 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 Do not use descalents on this product In service Tests The principal means for determining the continuing satisfactory performance of the mixing valve is the in service test Follow the procedure detailed in the flow diagram In service Test Procedure
4. 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 Damage or defects arising from incorrect installation improper use or lack of maintenance including build up of limescale Damage or defects if the product is 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 Before using your Shower Please take the time to read and understand the operating and safety instructions detailed in this manual 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 satisfactory 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 nec
5. e it is essential that the valve is used only for the applications covered by its approved designations with the appropriate water supply pressures and temperatures and it is commissioned maintained and serviced in accordance with the recommendations contained in this guide refer to the section Maintenance In Service Tests for in service test frequency that must be used as a minimum guide in Type 2 installations Supply Conditions For applications where a Type 2 Valve is required the supply conditions must comply with the values in the Table below Note that both hot and cold supply pressures must lie within the same pressure range ange Maximum Static Maintained Pressure Hot Supply Temperature C 95 to 65 55 to 65 Cold Supply Temperature C s 25 lt 25 Valves operating outside these conditions cannot be guaranteed to operate as Type 2 Valves 17 SPARE PARTS 456 22 Non Return Valve Assembly 456 28 Outlet Connector 456 29 Wall Mounting Bracket 467 01 Thermostatic Cartridge Assembly 467 04 Flow Cartridge Assembly 1609 030 Offset Connector Kit 1609 031 Temperature Knob 1609 032 Flow Knob 1609 031 1609 030 1609 032 18 NOTES CUSTOMER 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
6. e right side of the shower Adjusting the Flow The flow is controlled by rotating the flow control knob on the left side of the shower Increase Temperature Decrease Temperature Temperature Control Knob On Increase Flow Control Flow Knob COMMISSIONING Setting the Maximum Temperature The Mira Discovery Thermostatic Bar Valve has been preset to a safe showering temperature under ideal conditions at the factory appropriate for most systems However site conditions and personal preference may make it necessary to reset this temperature Caution Before testing the mixer make sure that the hot and cold water are flowing correctly by turning the temperature selector knob between the cold and hot stops For Type 2 installations the maximum blend temperature is determined by the application refer to section Type 2 Valves Application 1 2 Turn on the shower Turn the temperature selector knob to full hot and test the temperature of the water from the shower outlet If the water is not at the required temperature proceed with the following procedure Turn off the shower Carefully pull off the temperature control knob Note Force will be required to pull the temperature control knob from the shower Unscrew the hub retaining screw Remove the temperature hub and replace it one spline clockwise to increase the temperature Note One spline clockwise equals approximately 2 C increase in temperatu
7. essary 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 Mira Showers Kohler Mira Limited Cromwell Road Cheltenham GL52 5EP 1054969 W2 B B92B 1609 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 a pro forma invoice will be sent All spares are guaranteed for 12 months from the date of purchase Spares that have been supplied directly from us can be returned within one month from the date of purchase pr
8. he Offset Connectors to the pipework in the wall Note Connections are Hot Left Cold Right Bottom Outlet 10 mm j 72 BSP Female Connection Wall Offset Spirit Level Connector A UJ o 7 o Wall Mounting Bracket Gur Support Apply Silicone Bracket Sealant Pipework 10 11 12 Tighten the Offset Connectors using a spanner on the spanner flats Make sure that the Connectors are level and set at the correct distance apart using the Bar Valve as a guide to spacing Fix the Mounting Bracket to the wall through the small hole using the appropriate wall fixings for the type of wall not supplied Caution Take care not to drill though any concealed pipework Screw the Concealing Plates onto the Offset Connectors until they come into contact with the wall gt Spanner Flats Concealing Plates Caution Make sure that the supply pipework is flushed before installing the Bar Valve Assemble the Bar Valve with a Sealing Washer Filter in each inlet and attach to the Offset Connectors Tighten the connection using a 20 mm spanner Install the Shower Fittings refer to the Shower Fittings Installation and User Guide Turn on the water supplies and check for leaks at all pipe connections Sealing Washer Filter Bar Valve Outlet 10 OPERATION Adjusting the Temperature The temperature is controlled by rotating the temperature control knob on th
9. he Thermostatic Bar Valve removed remove the Washer Filter and the Circlip 2 Carefully remove the Non Return Valve and clean any debris M 3 On re assembly make sure that the gt Non Return Valve is fitted the correct way round with the arrow indicating the flow pointing towards the Valve Non return Valve Circlip Washer Filter Filters The Inlet Washers Filters are located in the Inlet Connector Clean or renew as necessary Thermostatic Cartridge In hard water areas the Filters in the Thermostatic Cartridge may become blocked with limescale which will reduce the flow of water It is recommended that the Cartridges are checked regularly and cleaned in a descaling solution such as kettle descalent if necessary Be sure to follow the manufacturer s instructions on the descalent package Note The Thermostatic Cartridge is non servicable and will require replacement should failure occur 16 TYPE 2 VALVES Application The approved designations for Type 2 Valves are as follows Model Designation Mira Discovery Bar Valve The permitted application details are Designation Operating Application Mixed Water Pressure Range Temperaturet C 41 C Maximum t Mixed water temperature at discharge point Important For TMV2 installations the mixed water temperature at the discharge point should never exceed 46 C In order to achieve the safe water temperatures expected of a Type 2 Valv
10. itions specified in section Type 2 Valves Application take precedence over the operating parameters which follow Pressure Range Minimum maintained pressure 0 2 bar 2 0 metre head Maximum maintained pressure 5 0 bar Maximum static pressure 10 bar Note Nominally equal inlet supply pressure are recommended for optimum performance Temperature Control Close temperature control is provided between 20 C and 50 C Note The temperature control specification outlined below is achieved with the blend between 35 C and 45 C and 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 10 C above the blend temperature Minimum hot water supply temperature 55 C Maximum hot water supply temperature 90 C for short periods 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 Connections Connections are Hot Left side nearest flow control 7 BSP Male Cold Right side nearest temperature control 7 BSP Male
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12. lushed through before final connection Decide on a suitable position for the Bar Valve The position of the Bar Valve 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 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 Hose Retaining Ring 25 mm Spill Over evel Solid Wall Installation For Solid Wall installations the Thermostatic Bar Valve can be supported by the pipework provided that it is securely fixed to the wall Alternatively for unfixed rear entry pipework the Wall Mounting Bracket can be used For installation onto a Stud Partition Laminated Panel or onto Unfixed Rear entry Pipework using the Wall Mounting Bracket refer to section Stud Partition Laminated Panel or Unfixed Rear entry ppp Installation 1 Install the pipework make sure that it is set at the correct distance apart 150 24 mm and solidly fixed as this supports the valve 150 24 mm Pipe Centres in Wall gt 22 mm 979 Apply suitable thread sealant not supplied and attach the Offset Connectors to the pipework in the wall Note Connections are Hot Left Cold Right Bottom Outlet Tighten the Offset Connectors using a spanner on the span
13. mira AL Discovery Ca THERMOSTATIC BAR VALVE Installation and User Guide These instructions are to be left with the user CONTENTS MENTO CUO me 3 Patents pM ELE 3 Safety Warnings iiieeener riore ete rinse ceni anne eranc ca asma aan SEN 4 Pack COmntents cl 5 DIM EN SIONS Ecc 5 Specifications eoo ceneecweciensnenvsnnccnnnasces sxeavdadensnensuddessnesieddseneeusnns 6 Installation 1 NER EA KAR KARNA RAN cereo oc KKR NEN AE ANEELA 7 EE E E tese rtr eee oe e nates ere E cvv eer 7 Solid Wall Installation snssmsssssssssssrerrsssrnrssnsrnnrssnsr eran nnr nr ran snar ran nn nar ran annan 8 Stud Partition Laminated Panel or Unfixed Rear entry Pipework Installation 9 Sir MN ae ooo cn oss E E 11 Adjusting the Temperature ssssssssusasssrssssstsrsssssnnssnnrsrnnnn arsa emn 11 Adjusting the FLOW eee coepta cd entere tho er eek ber eae rer veio Dex i 11 COMMISSIONING iss coed iets oce inanes iia ccena tuia Dexia c aaa ie E esc Tice ria EN 12 Setting the Maximum Temperature ssseeee 12 Fault Diagnosis eese nennen nnne nennt nnn 13 MainNteNaNCe sssssssssssnssssssnssnnssn nns sann nennen nnn nennt NR nennen nin ARR ERNA Rn nn 14 Type 2 Val c RENAR 17 Spare Parts m 18 Noles a oe ER RR RK SR 19 Customer Service ssssssssssssssssnsnsannsnannnnen nn
14. ner flats Make sure that the Connectors are level and set atthe correct distance apart using the Bar Valve as a guide to spacing Screw the Concealing Plates onto the Offset Connectors until they come into contact with the wall Install the Bar Valve referto section Stud Partition Laminated Panel or Unfixed Rear entry Pipework Installation and follow instructions 9 to 12 rd Offset va CL HAO Connector Connection TEN N tie Apply Silicone Support Pipework Wa Sealant Bracket Spirit Level Concealing Plates Wall Mounting Bracket Alternative Fixing Method Stud Partition Laminated Panel or Unfixed Rear entry Pipework Installation For all installations using the Wall Mounting Bracket 1 Install the pipework make sure that 150 24 mm a D Pipe Centres in Wal it is set at the correct distance apart l 150 24 mm and solidly fixed 2 Screw the Mounting Brackets onto X the Offset Connectors to the depth 27 mm shown in the illustration 3 The Mounting Bracket must extend in the same direction as the offset of the Offset Connector The angle between the Offset Connector and the Mounting Bracket must be less than 45 otherwise the Mounting Bracket will not fit under the Concealing Plate Offset Connector 4 The Mounting Bracket Boss should protrude to the rear facing the wall 5 Apply suitable thread sealant not supplied and attach t
15. ovided 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 correct 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 Tick the appropriate boxes to familiarise yourself with the part names and to confirm that the parts are included LJ 1 x Mira Discovery Bar Valve CS Ca O 2 x Concealing Plates Li 2 x Offset Connectors gt L 2 x Inlet Seals Filters Q0 72 x wall Mounting Brackets Documentation LJ 1 x Guarantee Brochure 150 mm 15 mm 1 2 BSP 70mm N os igh E 1 2 BSP 287 mm 5 SPECIFICATIONS For Type 2 Valves the supply cond
16. oviding that they are in good order and the packaging unopened Note Returned spares will be subject to a 15 restocking charge and authorisation must be obtained before return 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 at a 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 amp 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 Republic of Ireland 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 cork modernplant ie Fax 021 496 8607 Post Tramore Road Cork mild SHOWERS FM 14648 Kohler Mira Limited July 2007 plumbworld Big brands small prices Pdf Supp
17. re Tighten the hub retaining screw Install the temperature knob Make sure that the stop feature inside the knob is towards the top Turn on the shower and check the maximum temperature setting If further adjustment is required repeat the above procedure Hub Retaining Screw Temperature Control Knob Splines Temperature Hub 12 Only hot or cold water from mixer outlet Fluctuating or reduced flow No flow from mixer outlet Blendtemperature drift Maximum blend temperature setting too hot or too cold Drip from handset FAULT DIAGNOSIS Symptom Cause Rectification Inlet supplies reversed change pipework Faulty Non Return Valve Check that the Inlet Filters are not blocked Check that the Inlet Filters are not blocked Make sure that the minimum flow rate is sufficient for the supply conditions Make sure that the maintained inlet pressures are nominally balanced and sufficient Make sure that the inlet temperature differentials are sufficient Airlock or partial blockage in pipework Make sure that the Inlet Isolating Valves are open Hot or cold supply failure Make sure that hot and cold supplies are available Refer to symptom 2 Inlet supplies reversed Hot supply temperature fluctuation Supply pressures fluctuating Thermal Cartridge defective Inlet Filters Blocked Indicates incorrect maximum temperature setting refer section Commissioning Refer to symptom 4
18. s nns nn nn nn nn nn nn nan Back Page INTRODUCTION Thank you for purchasing a quality Mira product To enjoy the full potential of your new product please take time to read this guide thoroughly having done so keep it handy for future reference The Mira Discovery Thermostatic Bar Valve is a Thermostatic Shower Control designed for wall mount installations The Thermostatic Bar Valve has two knobs one knob controls the flow and the other knob controls the temperature The Thermostatic Bar Valve 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 This product has been certified as a Type 2 valve under the BUILDCERT TMV2 scheme This product also complies with the Water Supply water fittings Regulations 1999 Patents GB 2407188 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 SAFETY WARNINGS This Mira Discovery Thermostatic Bar Valve is precision engineered and should give continued safe and controlled performance pr
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