Related Manuals for Kohler Electric Shower
Summary of Contents for Kohler Electric Shower
- Page 1 ELECTRIC SHOWER Installation & User Guide THESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER...
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Page 2: Table Of Contents
Introduction ... 3 Important Safety Information ... 4 Pack Contents Checklist ... 7 Specifications ... 8 Dimensions ... 8 Wiring Diagram ... 9 Installation Requirements ... 11 Installation ... 16 Commissioning ... 21 Operation ... 22 Fault Diagnosis ... 25 Customer Fault Diagnosis ... -
Page 3: Introduction
If you experience any difficulty with the installation or operation of your new shower control, please refer to the Fault Diagnosis section before contacting Kohler Mira. Our telephone and fax numbers can be found on the back cover of this guide. -
Page 4: Important Safety Information
Important Safety Information WARNING! 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. - Page 5 CAUTION! 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.
- Page 6 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.
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Page 7: Pack Contents Checklist
Tick the appropriate boxes to familiarise yourself with the part names and to confirm that the parts are included. 3 x Wall Plugs 3 x Fixing Screws Documentation 1 x Installation & User Guide 1 x Installation Template 1 x Guarantee Brochure 1 x Mira Zest Electric Shower... -
Page 8: Specifications
Specifications Dimensions 205mm 103mm 53mm... -
Page 9: Wiring Diagram
Wiring Diagram... - Page 10 Plumbing Minimum maintained inlet pressure for satisfactory operation: 0.7 bar Maximum static inlet pressure: 10 bar Minimum static pressure to keep the flow valve closed: 0.5 bar Electrical The appliance requires a 40 Amp fuse. The terminal block will not accept cable larger than 10 mm Standards and Approvals This Mira Zest shower complies with all the relevant directives for CE marking.
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Page 11: Installation Requirements
Installation Requirements Plumbing 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 up to a maximum static inlet pressure of 10 bar. 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... - Page 12 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.
- Page 13 15. A hose retaining ring is supplied to prevent the handset from dropping 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 with flexible outlet fittings.
- Page 14 Electrical 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.
- Page 15 A separate, permanently connected supply must be taken from the consumer unit to 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.
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Page 16: Installation
WARNING! Isolate the electrical and water supplies before installing the shower. Decide on a suitable position for the appliance (minimum distance of 200mm 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. - Page 17 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.
- Page 18 12. Secure the shower to the wall loosely through the top two fixing holes, using the supplied screws. 13. Mark the position of the bottom fixing hole. 14. Remove the shower from the wall. Drill the bottom fixing hole and insert the supplied wall plug.
- Page 19 18. Bring the electrical cables into the case. 19. Strip back sufficient of the outer cable insulation to enable routing to terminal block. 20. Fit an earth sleeve to the earth wire. 21. Loosen the screws in the terminal block and insert the bare wires into the clamps. L (Live) = Brown wire (Earth) = Green sleeved wire N (Neutral) = Blue wire...
- Page 20 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. If the cover does not fit easily, rotate the knobs slightly so that they fit onto the spindles.
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Page 21: Commissioning
Commissioning If you are unsure how electric showers work, please read through the Operation section before continuing. 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. -
Page 22: Operation
Advice to Users 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 adjusted 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. - Page 23 Operation Instructions 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.
- Page 24 To turn the shower off Turn the power knob to Stop. Note! A small amount of water may continue to flow from the handset for a few moments. Switch off the electrical supply at the double pole switch.
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Page 25: Fault Diagnosis
Customer Fault Diagnosis The troubleshooting information below gives details on what you can do as a user if you encounter problems with the shower. If this information does not fix the problem, contact the installer for advice. Read the Important Safety Information section first and refer to the appliance diagram. - Page 26 Malfunction No water or very The handset sprayplate low flow rate. is blocked. The incoming water supply stop valves, or the appliance isolating valve, is closed. The hose or handset is blocked. The power is off at the double pole switch. The fuse is blown or the MCB/RCD has been tripped, indicating a...
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Page 27: Installer Fault Diagnosis
Installer Fault Diagnosis The troubleshooting information below gives details on solutions to problems with the shower, for installers. Before replacing any parts, ensure that the underlying cause of the malfunction has been resolved. Read the Important Safety Information section first and refer to the appliance diagram. - Page 28 Malfunction No water or very low The handset sprayplate is flow rate. 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.
- Page 29 Malfunction Water leaks from The pressure relief valve the bottom of the in the tank has been case near the triggered, (the shower outlet, and there is has a pressure relief no flow from the valve assembly that handset. works to reduce the damage if the outlet is blocked or the unit is frozen).
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Page 30: Maintenance
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. - Page 31 Use a suitable spanner to remove the filter from the inlet connector assembly. Hold a wrench across the flats of the inlet assembly to prevent damage to the connector, whilst removing the strainer. Remove the inlet filter. Clean the inlet filter with a stiff brush.
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Page 32: Relief Valve Assembly And Resetting
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. Remove the three screws that hold the cover, remove the cover. Note! The rubber ball is ejected to reduce the damage if the outlet is blocked or the appliance is frozen. -
Page 33: Flow Regulator Assembly/Switch Assembly Removal & Installation
Flow Regulator Assembly/Switch Assembly- Removal and Installation WARNING! Isolate the electrical and water supplies before removing the cover. Mains electricity connections are exposed when the cover is removed. Remove the three cover retaining screws, the cover and the service tunnel. Remove the hose from the outlet connector and loosen the connection to the inlet connector. - Page 34 Carefully pull off the two brown wires attached to the microswitch. Note the position of the wires. Carefully pull off the blue wire and brown wire from the solenoid, fitted to the flow regulator. Note the position of the wires. Solenoid Microswitch...
- Page 35 Carefully pull the flow regulator assembly, switch assembly and the heater tank away from the case. Carefully separate the flow regulator from the switch assembly and inlet connector by gently pulling apart. Inlet Connector Refit the components in reverse order. Make sure that the electrical wires and ‘O’ seals are installed in the correct positions.
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Page 36: Heater Tank-Removal And Installation
Heater Tank - Removal and Installation WARNING! Isolate the electrical and water supplies before removing the cover. Mains electricity connections are exposed when the cover is removed. Remove the three cover retaining screws, the cover and the service tunnel. Remove the hose from the outlet connector and ease the inlet connector off the inlet supply pipe. - Page 37 Remove all wiring from the switch assembly. Note! Using long nose pliers, gently squeeze the lever lock on the top two spade connection, and pull them off the switch assembly. Carefully pull the two lower connections off the switch assembly. Carefully pull off the blue wire to the solenoid, fitted to the flow regulator.
- Page 38 Lift out the flow regulator assembly, switch assembly and the heater tank from the case. Carefully separate the flow regulator assembly from the switch assembly, inlet connector and heater tank by gently pulling apart. Make a note of the positions of all the wiring on top of the heater tank.
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Page 39: Thermal Trip-Removal And Installation
Thermal Trip - Removal and Installation WARNING! Isolate the electrical and water supplies before removing the cover. Mains electricity connections are exposed when the cover is removed. Remove the three cover retaining screws, and the cover. Make a note of the positions of the wiring on top of the heater tank. Remove the screw that holds the green earth wire to the thermal trip. -
Page 40: Spare Parts
Spare Parts List 406.27 Filter 439.75 Inlet Connector Assembly 439.76 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 439.87 Terminal Block Assembly 439.88 Seal Pack (components identified ‘B’) 439.89 Screw Pack (components identified ‘C’) 439.90... - Page 41 Spare Parts Diagram 439.75 439.87 439.95 406.27 439.90 439.99 439.91 439.92 439.79 439.77 439.81...
- Page 42 Notes...
- Page 43 Notes...
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Page 44: Guarantee, Customer Care Policy, And How To Contact Us
028 9044 9234 – 24 hours Maryland Industrial Estate Ballygowan Road Moneyreagh, Co Down BT23 6BL Dublin 01 4591344 – Mon to Fri 9am to 5pm Dublin 01 4592329 – 24 hours Otter House Naas Road Clondalkin Dublin 22 © Kohler Mira Limited, November 2003...