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Installation and User Guide Bar ValVe ThermosTaTIc

1. temperature Note One spline clockwise equals approximately 2 C increase in temperature 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 13 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 inco
2. 6 C In order to achieve the safe water temperatures expected of a Type 2 Valve 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 Range Maximum Static Maintained Pressure Hot Supply Temperature C 55 to 65 55 to 65 Cold Supply Temperature C Valves operating outside these conditions cannot be guaranteed to operate as Type 2 Valves lt 25 lt 25 18 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 ALP J 22 Gi 456 28 P N 1609 032 19 ACCESSORIES Genuine Mira accessories can be purchased direct from Customers Services our contact details can be found on the back cover of this g
3. ERPEELELEREREEEFER 20 Uy LA 21 Customer Service cccoiimricicasicic ricas 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 Guarantee For domestic installations Mira Showers guarantee the Mira Discovery Thermostatic Bar Valve against any defect in materials or workmanship for a period of three years from the date of purchase shower fittings for one year For non domestic installations Mira Showers guarantee the Mira Discovery Thermostatic Bar Valve against any defect in materials or workmans
4. ature The temperature is controlled by rotating the temperature control knob on the 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 12 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
5. 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 u 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 ka Pipe Centres in Wall gt 22mm 00 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 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 Screw the Concealing Plates onto the Offset Connectors until they come into contact with the wall Install the Bar Valve refer to section Stud Partition Laminated Panel or Unfixed Rear entry Pipework Installation and follow instructions 9 to 12 Le Offset Y CL IN Connector Connection i TEA AN sine Apply Silicone Support Pipework Wall Sealant Bracket Spirit Level Concealing Plates Wall Mounting Bracket Alternative Fixing Metho
6. d 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 24mm l 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 ES XD the Offset Connectors to the depth O 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 a 4 The Mounting Bracket Boss should protrude to the rear facing the wall 5 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 10 mm p Y BSP Female Connection Wall Offset Spirit Level Connector A O D mn Wall Mounting Bracket A 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 Fixthe Mounting Bracket to the wall through the small hole using the appropriate wall fixings for the type of wall not s
7. en in section Specifications For Type 2 Valves see also supply conditions in section Type 2 Valves 1 The Bar Valve 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 Bar Valve 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 Supply pipework layout should be arranged to minimise the effect of other outlet usage upon the dynamic pressures at the Mixer inlets 7 Inlet and outlet threaded joint connections should be made with PTFE tape or liquid sealant Do not use oil based non setting joint compounds 8 To eliminate pipe debris it is essential that supply pipes are thoroughly flushed through before final connection 9 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 Pp Level Solid Wall Installation For Solid Wall installations the Thermostatic Bar Valve
8. hip for a period of one year from the date of purchase For terms and conditions refer to the back cover of this guide Recommended Usage Application Valve with Fittings Domestic Y Light Commercial Y Heavy Commercial Healthcare Patents GB 2407198 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 provided 1 It is installed commissioned operated and maintained in accordance with manufacturers recommendations 2 Periodic attention is given when necessary to maintain the product in good functional order Caution 1 Read all of these instructions 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
9. mira Discovery ea THERMOSTATIC BAR VALVE Installation and User Guide These instructions are to be left with the user CONTENTS 1 AAA aE ae e EE a aE EEEREN 3 Guarantee einen ae nern 3 Recommended US2Y8 oooccoccccncoccccccononnccononono no nnnn nan n cnn aran n rca nennen nenn 3 Pates nennen 3 Safety WArnings ATA 4 Pack Contents Ma EEERERERELEEPEELERLEEEFEEEREREEETEEEEEEEFEREEREEEPEEELEREEEEEFERGER 5 Dimension IGAN 5 SPCCHICATIONS aNG ii nia 6 Installation 243G 7 General iia da daba 7 Solid Wall Installation oooooooooooonnndcnnnnncnocooncnccccnnnncnonnnnnnrnrrrrcncnnnnnnnnn 8 Stud Partition Laminated Panel or Unfixed Rear entry Pipework Installation 9 Assembly of Control Knobs u 44444sss nennen nnnnnnnnnnnnnnnnnn nn 11 Opera Mitin PER aeaea Eaa Ear aaa NG NAGANA a sung 12 Adjusting the Temperature ma a ne 12 Adjusting the Flow aaa 12 COMMISSIONING HERBEREPERSEHREREFPFPFFEFEREERHREEEFERFERREEEEFELEREFEEFEFEEREEFFEFFEREEEEEFRREBERFEFE 13 Setting the Maximum Temperature uuunssesnennenennnennnnnnnnnnnnnnnnnn 13 Fault Diagnosis sasak 14 MAINTENANCE ice catcecsicscccteceene skews cevescensccs seceee weed seavesvvesscneceneecdeneeserd ceverse 15 Type 2 Valves oioiiiiicinni cccedsatesnecdssteececesseete ss 18 Spare PAM voir int noia A TARA AA A 19 ACCTOSSOMIOS JPPDEPREREULPPUEEEEEEEOEEEEEER EENELPEELEEEEEFELLECEEPEDELUEBERERTEELSEL
10. mirashowers com Fax 01242 282595 By Post Mira Customer Services Dept Cromwell Road Cheltenham Gloucestershire GL52 5EP Eire Telephone 01 459 1344 Mon to Fri 9 00 am 5 00 pm E mail sales modernplant ie Fax Dublin 01 459 2329 By Post Modern Plant Ltd Dublin Otter House Naas Road Clondalkin Dublin 22 UKAS mira n m SHOWERS QUALITY MANAGEMENT FM 14648 Kohler Mira Limited July 2009
11. 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 A on 11 x Flow Knob LJ 1 x Temperature Knob ED CS 2x Concealing Plates 2 x Inlet Seals Filters a LJ 2 x Wall Mounting Brackets gy J 2 x Offset Connectors Documentation O 1 x Guarantee Brochure 150 mm 15 mm 1 2 BSP 70 mm A gt in ig PAG 1 2 BSP 287 mm 5 SPECIFICATIONS For Type 2 Valves the supply conditions 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 e 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
12. rd 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 product must be installed and maintained in accordance with the instructions given in this user guide Servicing must only be undertaken by us or our appointed representative Note if a service visit is required the product must be fully installed and connected to services Repair under this guarantee does not extend the original expiry date The guarantee on any replacement parts or product ends at the original expiry date e For shower fittings or consumable items we reserve the right to supply replacement parts only The guarantee does not cover e Call out charges for non product faults such as damage or performance issues arising from incorrect installation improper use lack of maintenance build up of limescale frost damage corrosion system debris or blocked filters or where no fault has been found with the product e Water or electrical supply waste and isolation issues 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 repre
13. rrect maximum temperature setting refer section Commissioning Refer to symptom 4 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 14 MAINTENANCE General This Product is precision engineered and should give continued safe and controlled performance provided 1 It is installed commissioned operated and maintained in accordance with manufacturers recommendations 2 Periodic attention is given when necessary to maintain the product in good functional order 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 se
14. rvice test Follow the procedure detailed in the flow diagram In service Test Procedure 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 15 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 strainers and outlet below minimum flow Yes y 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 out the commissioning procedure Note All measurements and results should be recorded in the Log Book Flow Diagram In service Test Procedure 16 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 cro
15. sentative e Routine maintenance or replacement parts to comply with the requirements of the TMV 2 or TMV 3 healthcare schemes What to do if something goes wrong If your product does not function correctly when you first use it contact your installer to check that it is installed and commissioned in accordance with the instructions in this manual Should this not resolve the issue contact our Customer Services Team who will offer you or your installer advice and if applicable arrange for a Service Technician to call If the performance of your product declines check in this manual to see if simple home maintenance is required If you require further assistance call our Customer Services Team Extended Guarantees A selection of protection plans are available that enable you to cover repair bills for the life of your policy excludes Eire Ring 01922 471763 for more details Mira is a registered trade mark of Kohler Mira Limited The company reserves the right to alter product specifications without notice 1054969 W2 C B92B 1609 Helpdesk Service Our dedicated Customer Services Team is comprehensively trained and can offer help and advice spare parts accessories or a service visit We willneed you to have your model name or number power rating if applicable and date of purchase As part of our quality and training programme calls may be recorded or monitored Mira Showers Website www mirashowers co uk From our
16. ssflow or malfunction of the Valve 1 With the water supplies turned off and Flow Arrow the Thermostatic Bar Valve removed remove the Washer Filter and the Circlip 2 Carefully remove the Non Return O Valve and clean any debris 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 17 TYPE 2 VALVES Application The approved designations for Type 2 Valves are as follows UU 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 4
17. uide or from approved stockists or merchants Showerhead Holder White 1 1540 270 Chrome 1 1540 271 An alternative to the traditional slide bar Often a useful addition when positioned for the smaller 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 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 of lime scale build up members of the family Wall Mounted Soap Dish White 1 1540 278 Chrome 1 1540 279 Wall mounted for use anywhere in or outside the showering area Shower Seat White 2 1536 128 White Chrome 2 1536 129 For use in or out of the showering area Note Must be installed onto a solid wall Shower seat folds up when not in use 20 Double Outlet Check Valve DCV H Chrome 1 0 110 55 1 DCV H An outlet double check valve designed to prevent the backflow or backsiphonage of potentially contaminated water through shower controls which are fitted with a flexible hose as part of the outlet shower fitting NOTES 21 NOTES 22 NOTES 23 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 ca
18. upplied Caution Take care not to drill through any concealed pipework Screw the Concealing Plates onto the Offset Connectors until they come into contact with the wall Spanner Flats 7 7 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 Assembly of Control Knobs Flow Knob 1 Rotate the Flow Hub fully clockwise 2 Both the Bar Valve and the Flow Knob have a flow stop marking align both of the marks and push the Flow Knob until it locks onto the flow hub Flow Hub Flow Knob may O gt AS Align Flow Stop Marks Temperature Knob 1 Rotate the Temperature Hub fully anti clockwise 2 Hold the Bar Valve with the Outlet facing down then align the red temperature marking on the Temperature Knob toward the Bar Valve as illustrated 3 Push the Temperature Knob onto the Bar Valve until it locks onto the Temperature Hub Temperature Hub Temperature Marking red Gan Temperature Knob Outlet Connector 11 OPERATION Adjusting the Temper
19. 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 e 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 e Hot Left side nearest flow control Y BSP Male e Cold Right side nearest temperature control 72 BSP Male e Bottom Outlet Y BSP Male 34 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 The Control Knobs will require fitting prior to use refer to section Assembly of Control Knobs for instruction 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 giv
20. website you can register your guarantee download additional user guides diagnose faults purchase our full range of accessories and popular spares refer to our FAQ s and request a service visit Spares and Accessories We maintain extensive stocks of genuine spares and accessories and aim to provide support throughout the product s expected life Payment can be made by phone at time of order using most major Credit or Debit cards and we aim to despatch orders within two working days Items purchased from us are guaranteed for 12 months from date of purchase For safety reasons spares exposed to mains voltages should only be fitted by competent persons Returns items can be returned within one month of date of purchase providing that they are in good condition and the packaging is unopened Please obtain authorisation from our Customer Services Team before return We reserve the right to apply a 15 restocking charge Service Repairs We have a nationwide team of Service Technicians who can carry out all service or repair work to your product within the guarantee period and beyond You have the assurance ofa fully trained Mira Technician genuine Mira spare parts and a 12 month guarantee on any chargeable work done Payment should be made directly to the Service Technician who will accept most major Credit or Debit cards To Contact Us UK Telephone 0844 571 5000 Mon to Fri 8 00 am 5 30 pm Sat 8 30 am 3 30 pm E mail technical

Installation and User Guide Bar ValVe ThermosTaTIc

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