Installation and User Guide ElEctrIc ShowEr MIra ZESt
Contents
1. These instructions are to be left with the user CONTENTS Introductign E 3 Important Safety Information be 4 Pack danian aiarra 6 Specifications sted innuens aan Dar EE Ca PR YER R RANA EIS 7 7 Wining BIS 7 xliii mem T 8 gc neat 8 Standards and Approvals pp 8 Flow Rate Graph iE eed adio EE eet RE 8 Installation Requirements ee 9 PIUMBING sais e rs dete addon rau 9 El tilcal ceo eee AM E d 11 MAS 12 COMMITS Mm 14 OPO 16 Fault DIaghOoSls cede cnse 18 MaintenanEe 22 CIeanIO 22 Cleaning the Inlet Filter essem 22 Relief Valve Assembly Resettind 23 Spare Parts 24 Spare Parts rrr iere 24 Spare Parts Diagram pe 25 NOt S EE 26 Customer Servico ciae ida Back Page INTRODUCTION Thank you for purchasing a quality Mira Zest Electric Shower To enjoy the full potential of your new shower please take time to read this guide thoroughly and keep it handy for future reference Mira Zest electric showers have separate controls for powe2. Thoroughly flush the supply pipe Screws On the shower turn both knobs tothe Shower full anti clockwise position Remove the three screws that hold the cover on the shower and remove the cover Remove the service tunnel from the shower Determine the direction of the incoming water supply falling entering the shower from the top or rising entering the shower from the bottom Do not use an incoming supply entering the shower directly from the back Add an elbow to the supply pipe and connect it as a rising or falling supply Service Tunnel Rotate the inlet connector to suit the direction of the incoming water supply Inlet Connector 12 10 11 12 19 14 15 16 17 The case has thinned sections that can be removed to allow entry of the supply pipe and electrical cables Remove the top thinned section of the case for a falling supply or remove the bottom thinned section of the service tunnel for a rising supply Do not remove any case if the electrical cables enter from the back Secure the shower to the wall loosely through the top two fixing holes using the supplied screws Mark the position of the bottom fixing hole Remove the shower from the wall Drill the bottom fixing hole and insert the supplied wall plug Thoroughly flush the mains fed cold water supply pipe Caution The supply must be clean and free from debris BEFORE connecting the appliance
3. Replace the shower on the wall and secure through the three fixing holes using the supplied screws Connect the inlet supply pipe to the inlet connector using a 1 2 BSP nipple with compression nuts and olives shown or a push fit connector 13 Service Tunnel Inlet Connector Compression Nt bey Olive QQ 1 2 BSP Nipple Olive Compression Nut Inlet Supply Pipe ess Thinned Secti on AW 18 Bring the electrical cables into the case 19 Strip back sufficient of the outer cable insulation to enable routing to terminal block E 20 Fit an earth sleeve to the earth wire Terminal Block 4 21 Loosen the screws in the terminal block and insert the bare wires into the clamps A L Live Brown wire Electrical E Earth Green sleeved wire Cables N Neutral Blue wire Note Do not twist the cores of the wires or strain the cables to make them reach the terminal block 22 Connect the conductors firmly into the terminal block Make sure that Cold Water Supply Pipe the bare cores of each conductor Inlet Connector are securely trapped within each conductor clamp Screws 23 If necessary fit an earth bonding clamp to the supply pipe and ensure that the bonding complies with the relevant regulations in force at the time of installation 24 Replace the service tunnel 25 Replace the cover
4. 205 mm 310 mm 53 mm Wiring Diagram THERMAL CUTOUT DUAL DISC BROWN LO Sg I BROWN RED BROWN ON OFF PRESSURE POWER SELECTOR SWITCH BROWN BROWN RED SOLENOID VALVE ELEMENTS BLUE N BLUE BLUE GREEN E Q O TANK CONNECTION Plumbing 1 Minimum maintained inlet pressure for satisfactory operation 0 7 bar 70 kPa 2 Maximum static inlet pressure 10 bar 1000 kPa 3 Minimum static pressure to keep the flow valve closed 0 5 bar 50 kPa Electrical 1 The appliance requires a 40 Amp fuse 2 The terminal block will not accept cable larger than 10 mm Standards and Approvals 1 This Mira Zest shower complies with all the relevant directives for CE marking Flow Rate Graph 1 These curves are for the specified outputs at 240 V 2 Allappliance heating elements have a manufacturing tolerance Flow rates may be above or below those shown on the flow rate graph 3 The left hand axis shows temperature rise Temperature rise Showering temperature Supply water temperature 55 o 50 5 45 B 40 P 35 5 30 S 25 8 5 kW 2 20 7 5 kW 5 5 55 10 2 3 4 5 6 7 8 9 10 11 12 13 Flow Rate l min Example For the Mira Zest 8 5 kW on full power setting with an incoming water supply at 10 C and a showering te
5. If the cover does not fit easily rotate the knobs slightly so that they fit onto the spindles Do not force the cover 26 Tighten the three cover screws Service Tunnel 14 COMMISSIONING If you are unsure how electric showers work please read through the Operation section before continuing 1 10 11 Make sure that the TOP control knob is in the STOP position and that the electrical supply has been isolated Turn the BOTTOM control knob fully anticlockwise to the full cold position Turn the water supply fully on at the isolating valve check that water is not leaking from the bottom of the case Switch on the electrical supply at the double pole switch Turn the TOP control knob to the LOW position Check that water flows freely from the shower within a few seconds If not refer to the Maintenance section The water from the handset will be at full force and at a cool temperature Turn the BOTTOM knob slowly clockwise As the knob is rotated the flow will be reduced and the temperature will remain cool this shows that the flow regulator assembly is operating correctly Return the knob anticlockwise to full cold position Turn the TOP knob to the MEDIUM position The temperature of the water should rise slightly Allow a few seconds for the warm water to reach the handset this shows that the MEDIUM power setting is operating correctly Turn the TOP knob to the HIGH position The t
6. as Institute of Plumbing IOP throughout the UK National Association of Plumbing Heating and Mechanical Services Contractors NAPH amp MSC England and Wales Scottish and Northern Ireland Plumbing Employers Federation SNIPEF Scotland and Northern Ireland This appliance is not thermostatic and can produce scalding temperatures if not operated in accordance with the instructions given in this manual 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 the disabled anyone who suffers from a medical condition that can result in temporary incapacity e g epilepsy or blackouts anyone inexperienced in the correct operation of the controls When this appliance has reached the end of its serviceable life it should be disposed of in a safe manner in accordance with current local authority recycling or waste disposal policy PACK CONTENTS v Tick the appropriate boxes to familiarise yourself with the part names and to confirm that the parts are included 4 3x Wall Plugs ff c 3 x Fixing Screws 1 x Mira Zest Electric Shower Documentation 1 x Installation and User Guide 1 x Installation Template 1xGuarantee Brochure SPECIFICATIONS Dimensions
7. diaphragm The supply pressure is below the minimum requirement 21 Resolve the blocked outlet and replace the tank assembly Reset the relief valve assembly refer to Maintenance Relief Valve Setting If the fault persists contact Customer Services Replace the flow regulator assembly Replace the flow regulator assembly Contact the local water authority Check the static water pressure Note that the static pressure may fall below minimum requirement when other appliances are drawing water for example the dishwasher or washing machine Any maintenance must be carried out by a qualified tradesperson following the instructions provided Before replacing any parts ensure that the underlying cause of the malfunction has been resolved Warning There are no user serviceable components beneath the cover of the appliance Only a competent tradesperson should remove the cover Cleaning Many household and industrial cleaners contain abrasives and chemical substances that can damage the finish of your shower Only clean the shower and fittings with a mild washing up detergent or soap solution and then wipe them dry with a soft cloth Screws Cleaning the Inlet Filter Warning Isolate the electrical and water supplies before removing the cover 1 Remove the three screws that hold the cover on the shower and remove the cover 2 Remove the service tunnel from the show
8. the shower reduced Check the shower temperature before entering the shower The previous user may have selected a different temperature setting When the shower is first turned on or the temperature setting is changed there will be a slight delay before the water temperature changes 16 Operation Instructions To turn the shower on 1 2 Switch on the electrical supply at the double pole switch Turn the power knob to High Wait 15 20 seconds for warm water to reach the handset For electrical economy set the power knob to Medium This setting will provide sufficient power when the supply water temperature is warmer such as in the summer For an unheated shower set the power knob to Low To set the shower temperature 1 Set the shower temperature by rotating the temperature knob as necessary Turn the knob clockwise for hotter water and anticlockwise for cooler water Wait 10 15 seconds for the adjusted temperature to reach the handset Note It is normal for the flow rate to change when the temperature is changed Note If the water temperature cycles between hot and cold the temperature is set too high This is causing the thermal switch to turn off the heating element to reduce the water temperature Turn the temperature knob anticlockwise to reduce the water temperature To turn the shower off 1 Turn the power knob to Stop Note A small amount of water may continue to flow from the hand
9. 0 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 cork modernplant ie Fax 021 496 8607 Post Tramore Road Cork mira SHOWERS FM 14648 Kohler Mira Limited July 2008
10. 76 Clamp Bracket Pack components identified A 439 77 Flow Reg Assembly 7 5 8 5 kW 439 79 Switch Assembly Rotary 439 81 Cover Assembly Zest 439 88 Seal Pack components identified B 439 89 Screw Pack components identified C 439 90 Thermal Trip Assembly 439 91 Heater Tank Assembly 7 5 kW 439 92 Heater Tank Assembly 8 5 kW 439 95 Service Tunnel 439 99 Tank Outlet and Ball 1539 349 Terminal Block Assembly 24 Spare Parts Diagram SS EON aa CH 439 90 25 NOTES 26 NOTES 27 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 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 o
11. d by turning the temperature control knob which varies the flow of cold water across the elements The slower the rate of flow the warmer the water and vice versa The holes in the spray plate of the shower handset should always be kept clean to maintain a consistent flow and stable shower temperatures The appliance is designed to stabilise temperature changes caused by water pressure fluctuations These fluctuations can be caused by taps being turned on or off or toilets being flushed Under such conditions average shower temperatures will be held within a 6 C range provided that the minimum required pressure is maintained Seasonal changes in the temperature of the incoming cold water supply and or fluctuations in mains electrical voltage will effect the temperature of the water Adjust the temperature knob as necessary to compensate The shower requires a minimum maintained running pressure of 0 7 bar 70 kPa to operate At pressures above 0 7 bar 70 kPa the shower will minimise the temperature fluctuations caused when other draw off points are used If the flow rate drops below an acceptable level the heating element inside the shower will turn off resulting in a cold shower If the water temperature reaches an unsafe level the thermal switch assembly turns off the heating elements As the water temperature falls the elements will be turned on The switch will cycle on off on if the flow rate is not increased and the temperature of
12. e 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 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 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 and Northern Ireland Mira Showers Customer Services Telephone 0870 241 0888 Mon to Fri 8 0
13. e Do not use a valve with a loose washer plate jumper as this can lead to a build up of static pressure To avoid damage to the case when soldered fittings are used pre solder the pipework and fittings before connecting them to the inlet stub Supply pipework MUST be flushed to clear debris before connecting the appliance The appliance is fitted with a 1 2 BSP male outlet thread to accept a Mira Zest shower hose When installed in very hard water areas above 200 ppm temporary hardness your installer may advise the installation of a water treatment device to reduce the effects of limescale formation Appliance malfunction due to excessive limescale formation is not covered by the manufacturer s guarantee Your local water company will be able to advise on the hardness of water in your area A hose retaining ring is supplied to prevent the handset from dropping e below the spillover level of the bath or shower which could lead to contamination from back siphonage The supplied hose retaining ring should meet the majority of user requirements for shower installations e with flexible outlet fittings However there will be occasions when the hose retaining ring will not provide a suitable solution In these instances an outlet double checkvalve must be 25 mm fitted This will increase the required LB minimum supply pressure typically by 0 1 bar 10 kPa M f spillover Double checkvalves fitted in the reve inlet supply
14. emperature of the water will rise further this shows that the full power setting is operating correctly Set the shower temperature by rotating the BOTTOM knob as necessary Turn the knob clockwise for hotter water and anticlockwise for cooler water Note When the temperature is changed the flow rate will change When the required temperature is reached turn to the STOP position to stop the flow Water may continue to flow from the handset for a few moments during shut down as water is purged from the tank Isolate the power at the double pole switch Asmall 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 Note A slight hissing sound may be heard from the appliance during operation High mains water pressure and high shower temperatures will effect the tone This is quite normal when the shower is in use 15 OPERATION Advice to Users Note Read the Important Safety Information section first Warning The spray plate holes must be kept clear The spray plate should be regularly removed and cleaned in descalent Lack of regular spray plate cleaning will lead to poor performance and cause early failure of the appliance See the shower fittings User Guide for more information 1 2 Electric showers work by taking in cold water and passing it over the heating elements contained in the tank inside the shower The showering temperature is adjuste
15. ently connected supply must be taken from the consumer unitto the appliance through a double pole switch which has a minimum 3 mm contact separation The switch can be a ceiling mounted pull cord type within the shower room or a wall mounted switch in an adjacent room DO NOT twist the individual cable cores of the live and neutral conductors as this will prevent them from entering the terminal block DO NOT exert strain on the terminal block DO NOT turn on the electrical Plumbing and Electrical Schematic supply until the plumbing has been completed 11 INSTALLATION Warning Isolate the electrical and water supplies before installing the shower 1 Decide on a suitable position for the appliance minimum distance of 200 mm from the ceiling to allow for cover fit and removal The position of the appliance 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 backsiphonage Put the installation template on the wall and mark the positions of the top two fixing holes Ensure that there are sufficient lengths of supply pipe and electrical cable to reach the connection points as shown on the template Remove the installation template and drill the top two fixing holes Insert the supplied wall plugs Caution Do not drill into cables or pipes in the wall
16. er 3 Use a suitable spanner to remove the filter from the inlet connector assembly Hold a wrench across the flats of the inlet connector assembly to prevent damage to the connector whilst removing the strainer 4 Remove the inlet filter 5 Clean the inlet filter with a stiff brush If necessary use a kettle descalent in accordance with the manufacturer s instructions Inlet Filter 6 Refit the components in reverse p di order Inlet Connector Assembly 22 Relief Valve Assembly Resetting WARNING Isolate the electrical and water supplies before removing the cover Mains electricity connections are exposed when the cover is removed 1 Remove the three screws that hold the cover remove the cover Screws Note The rubber ball is ejected to reduce the damage if the outlet is blocked or the appliance is frozen 2 Remove the five screws that hold the Switch assembly heater tank and flow regulator assembly Heater Tank 3 Lift out the switch assembly heater tank and flow regulator assembly Assembly 4 Using your finger push the ball back into the tank Do not remove the O Flow Regulator seal Assembly Ball 5 Refit the components in reverse order 6 Replace the cover If the cover does not fit easily rotate the knobs slightly so that they fit into the spindles Do not force the cover 23 SPARE PARTS Spare Parts List 406 27 Filter 439 75 Inlet Connector Assembly 439
17. es from the top or bottom The water supply can be fed with 15 mm pipe or 10 mm microbore pipe suitably adapted into the inlet connector assembly If 10 mm microbore is used then an allowance for increased pressure loss must be made to ensure that the minimum maintained inlet pressure is achieved Do not fit the appliance to the wall and tile up to the case The appliance must be fitted onto a finished flat and even wall surface Otherwise difficulty may be encountered when fitting the cover and subsequent operation of the unit could be impaired small pillars moulded on to the back of the case allow air circulation Use only the inlet connector assembly supplied with the appliance Do not use any other types of fitting Refrain from applying excessive force when making any connections Always provide mechanical support when making the plumbing connections This appliance is not designed to be plumbed directly from the rear For a rear entry supply add an elbow to the supply pipe and connect itas a rising or falling supply Do not install the appliance in a position where it may become frozen The shower unit must not be fitted where it may be exposed to freezing conditions The shower unit must not be used if you suspect it may be frozen 10 11 12 19 14 15 16 We recommend that a non restrictive free flowing isolating valve is fitted in the cold water supply pipe to allow the complete maintenance of the applianc
18. l block Make sure that any pipework that could become frozen is properly insulated DO NOT operate this appliance if it is frozen Allow the appliance to thaw before using The shower unit must not be fitted where it may be exposed to freezing conditions DO NOT fit any form of outlet flow control as the outlet acts as a vent for the tank body Only Mira Showers recommended outlet fittings should be used If water leaks from the pressure relief valve maintenance will be required before the appliance can be safely used There are no user serviceable components beneath the cover of the appliance Only a competent tradesperson should remove the cover If any of the following conditions occur isolate the electricity and water supplies and refer to To contact us on the back page of this guide The cover is not correctly fitted and water has entered the appliance case The case is damaged The appliance begins to make an odd noise smell or smoke The appliance shows signs of a distinct change in performance indicating a need for maintenance The appliance is frozen Isolate the electrical and water supply before removing the cover Mains connections are exposed when the cover is removed Refer to the wiring diagram before making any electrical connections Make sure all electrical connections are tight to prevent overheating This product is not suitable for areas with very high humidity i e steam rooms Please consu
19. lt your installer Caution 1 2 3 Read all of these instructions and 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 and on or inside the appliance The electrical installation must comply with the Requirements for Electrical Installations commonly referred to as the IEE Wiring Regulations or any particular regulations and practices specified by the local electricity supply company in force at the time of installation The installation should be carried out by an electrician or contractor who is registered or is a member of an association such as National Inspection Council for Electrical Installation and Contracting NICEIC throughout the UK The Electrical Contractors Association ECA England and Wales The Electrical Contractors Association of Scotland ECAS This is a high power unit it is essential to contact your electricity supply company to ensure that the electricity supply is adequate for the purpose The plumbing installation must comply with the requirements of UK Water Regulations Bye laws Scotland Building Regulations or any particular regulations and practices specified by the local water company or water undertakers The installation should be carried out by a plumber or contractor who is registered or is a member of an association such
20. mperature at 42 C the temperature rise is 32 C The flow rate is therefore 4 l min INSTALLATION REQUIREMENTS Plumbing 1 The Mira Zest 7 5 kW and 8 5 kW electric showers are designed to operate with a minimum maintained inlet pressure of 0 7 bar 70 kPa up to a maximum static inlet pressure of 10 bar 1000 kPa The appliance is normally connected to the cold water mains fed supply However the water supply can be taken from a cold water storage cistern provided there is a minimum maintained inlet head of water of 7 metres the vertical distance from the base of the cold water storage cistern to the shower fitting handset To reduce pressure losses and fluctuations the cistern fed water supply must be independent from other supply draw offs and should avoid long horizontal pipe runs and use swept bends rather than 90 elbows For further advice please refer to the back cover of this guide for Mira Showers contact telephone and fax numbers The appliance is suitable for installation within the shower area It is fitted with a pressure relief device and must be positioned over a water catchment area with the controls at a convenient height for the user The shower fitting should be positioned so that it discharges down the centre line of the bath or across the opening of a shower cubicle and must be directed away from the appliance The appliance is fitted with an inlet connector assembly that is designed to accept plumbing suppli
21. r 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 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 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 013181 038842 gt 1057732 W2 C Mira is a registered trade mark of Kohler Mira Limited The company reserves the right to alter product specifications without notic
22. r selection and for temperature flow adjustment A unique flow regulator stabilises any temperature changes caused by water pressure fluctuations which can result from taps being turned on or off or toilets being flushed Products covered by this guide Mira Zest 7 5 A 7 5 kW 240 V AC 6 9 kW 230 V AC heater Available in a white finish Mira Zest 8 5 A 8 5 kW 240 V AC 7 8 kW 230 V AC heater Available in a white finish Recommended Usage Domestic Light Commercial Heavy Commercial X Healthcare If you experience any difficulty with the installation or operation of your new shower control then please refer to Fault Diagnosis before contacting Kohler Mira Limited Our telephone and fax numbers can be found on the back cover of this guide IMPORTANT SAFETY INFORMATION Warning 1 10 11 12 13 14 15 Products manufactured by us are safe and risk free provided that they are installed used and maintained in good working order in accordance with our instructions and recommendations THIS APPLIANCE MUST BE EARTHED In accordance with The Plugs and Sockets etc Safety Regulations in force at the time of installation this appliance is intended to be permanently connected to the fixed electrical wiring of the mains system DO NOT twist the individual cable cores of the live and neutral conductors as this will prevent them from entering the termina
23. r to the Maintenance section of the handset manual If the fault persists contact the shower installer Contact your installer to replace the flow valve assembly Clean the handset sprayplate Refer to the Maintenance section of the handset manual Open the stop isolating valve completely Clear the blockage or replace the hose or handset Continued Malfunction No hot water from shower with the knobs in any position Temperature cycles between hot and cold The power is off at the double pole switch The fuse is blown or the MCB RCD has been tripped indicating a possible electrical fault Other water outlets are being used during showering causing the water pressure to drop below the minimum required The water pressure is below the minimum required Failure of pressure switch micro switch or thermal switch The temperature is set too high This is causing the thermal switch to turn off the heating element to reduce the water temperature Switch on the power at the double pole switch Renew the fuse or reset the MCB RCD If the fault persists contact the shower installer Make sure the other water outlets such as the washing machine or dishwasher are not in use during showering Make sure that the incoming water supply stop and the isolating valve are completely open If the fault persists contact the shower installer Contact installer to replace faulty parts T
24. s not turned on at the double pole switch The fuse is blown or the MCB RCD has been tripped indicating a possible electrical fault for example heater tank element failure Turn the temperature knob anticlockwise to reduce the water temperature DO NOT TAMPER with the thermal switch Replace the flow regulator Remove and clean the handset sprayplate Referto the shower fittings User Guide If the fault persists contact Customer Services Regularly clean the handset sprayplate Refer to the Maintenance section of the handset manual Open the stop isolating valve completely Clear the blockage or replace the hose or handset Contact the local water authority Replace the heater tank Replace the flow regulator assembly Clean the inlet filter See the Maintenance Cleaning the Inlet Filter section Switch on the power at the double pole switch Renew the fuse or reset the MCB RCD Ifthe fault persists contact Customer Services Replace the heater tank Continued Water leaks from the bottom of the case near the outlet and there is no flow from the handset The water cannot be turned off The pressure relief valve in the tank has been triggered the shower has a pressure relief valve assembly that works to reduce the damage if the outlet is blocked or the unit is frozen When the relief valve operates a small rubber ball is ejected The pilot valve is faulty Broken
25. set for a few moments Switch off the electrical supply at the double pole switch 17 Sto Sto Sto Sto Low Medium p L High S Low Medium p High S Low Medium p gt igh e Low Medium p High TI FAULT DIAGNOSIS The troubleshooting information tabled below gives you details on probable causes and remedies should difficulties be encountered whilst the shower is in operation Warning There are no user serviceable components beneath the cover of the appliance ONLY A COMPETENT TRADESPERSON SHOULD REMOVE THE FRONT COVER Shower is too The incoming water is Turn the power knob to hot during the summer Shower is too hot Turning the temperature knob does not affect the water temperature The water continues to flow when the double pole switch is turned off No water or very low flow rate warmer in the summer so the shower power setting is too high The handset sprayplate is blocked The handset sprayplate is blocked Broken diaphragm The handset sprayplate is blocked The incoming water supply stop valves or the appliance isolating valve is closed The hose or handset is blocked Medium and adjust the temperature knob until the desired temperature is reached Regularly clean the handset sprayplate Refer to the Maintenance section of the handset manual Remove and clean the handset sprayplate Refe
26. to the appliance cause a pressure build up which could exceed the maximum static inlet pressure for the appliance Hose Retaining Ring Avoid layouts where the shower hose will be sharply kinked This may reduce the life of the hose 10 Electrical 1 In a domestic installation the rating of the electricity supply company fuse and the consumer unit must be adequate for the additional demand This is a high power appliance and it is essential to contact your electricity supply company to ensure that the supply is adequate for the appliance Voltage drop due to local heavy demand will reduce the performance of the shower The appliance must be earthed by connecting the supply cable earth conductor to the earth terminal Supplementary bonding Within the bathroom or shower room all accessible conductive parts of electrical equipment and extraneous conductive parts that are likely to introduce earth potential must be electrically bonded to earth using a minimum cable size of 4 0 mm if the cable is not mechanically protected 2 5 mm if mechanically protected The minimum cable size cross sectional area must conform to BS7671 To obtain full advantage of the power provided by this unit use the shortest possible cable route from the consumer unit to the shower A 30 mA residual current device RCD should be fitted This may be part of the consumer unit or a separate unit A separate perman
27. urn the temperature knob anticlockwise to reduce the water temperature ALL OF THE FOLLOWING REMEDIES MUST ONLY BE PERFORMED BY A COMPETENT TRADESPERSON No hot water from shower with the knobs in any position Insufficient water supply pressure Failure of the pressure switch microswitch or thermal switch An internal wiring connection has failed One of the heater tank elements has failed Switch assembly diaphragm fault water dripping from the unit Contact the local water authority Check the continuity of the switches using a suitable continuity measuring device Replace the switches as necessary Check the integrity of the internal wiring Replace the heater tank Replace switch assembly Continued Malfunction Shower temperature cycles between hot and cold Turning the temperature knob does not affect the water temperature No water or very low flow rate The temperature is set too high This is causing the thermal switch to turn off the heating element to reduce the water temperature The flow regulator is faulty The handset sprayplate is blocked The handset sprayplate is blocked The incoming water supply stop valves or the appliance isolating valve is closed The hose or handset is blocked Insufficient water supply pressure The heater tank is excessively scaled The pilot valve is faulty The inlet filter is blocked The power i
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