Mira Orbis 9.0, 9.8 & 10.
INTRODUCTION Thank you for purchasing a quality Mira Orbis Thermostatic 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. Products manufactured by Kohler Mira Ltd are designed to be safe provided, that they are installed used and maintained in good working order, in accordance with our instructions and recommendations.
IMPORTANT SAFETY INFORMATION WARNING - This shower can deliver scalding temperatures if not operated, installed or maintained in accordance with the instructions, warnings and cautions contained in this guide and on or inside the appliance. TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK OR INJURY: 1. Installation of this shower must be carried out in accordance with these instructions by qualified, competent personnel. 2. Isolate the electrical and water supplies before commencing installation.
PACK CONTENTS Tick the appropriate boxes to familiarise yourself with the part names and to confirm that the parts are included.
RED WIRING DIAGRAM BROWN RED BROWN BROWN BROWN RED BROWN RED BROWN RED BLUE GREEN BLUE BLUE GREEN GREEN GREEN 5 BLACK BLACK
SPECIFICATIONS European Conformity Information The Mira Orbis shower complies with the following European directives: 2006/95/EC Low Voltage Directive, 2004/108/EC EMC Directive. The Mira Orbis shower is a high power appliance and is subject to conditional connection. If the main electrical supply fuse is rated less than 80 Amps, the local electricity supply company must be contacted to confirm if the electrical supply is adequate.
INSTALLATION REQUIREMENTS Please read the Important Safety Information and specifications sections at the front of this guide, and the requirements detailed in this section before installing the shower. WARNING - TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK OR INJURY: Plumbing 1. The plumbing installation must comply with all national or local water regulations and all relevant building regulations, or any particular regulation or practice specified by the local water supply company. 2.
15. A full bore/non restrictive servicing valve must be fitted in a readily accessible position adjacent to the shower to facilitate maintenance of the shower. DO NOT use a valve with a loose washer plate (jumper) as this can lead to a build up of static pressure. 16. A water treatment device should be installed where the water hardness may exceed 200 ppm. Malfunctions caused by excessive limescale formation are not covered by this shower’s guarantee (see back page for details). 17.
WARNING - TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK OR INJURY: Electrical 1. The electrical installation must comply with BS 7671 (commonly referred to as the IEE Wiring Regulations) and all relevant building regulations, or any particular regulation or practice specified by the local electricity supply company. 2.
INSTALLATION Warning! Isolate the electrical and water supplies before installing the shower. The electricity must be turned off at the mains and the appropriate circuit fuse removed, if applicable. Note! An installation template is supplied to help you install the Mira Orbis. Wall fixings are not supplied. For solid wall structures a red rawl plug and a no. 8 x 1½” countersunk brass or stainless steel screw should be used. For other wall structures such as panels alternative fixings may be required.
6 Swivel the inlet connector assembly to suit. Remove the inlet blanking cap. Avoid trapping the green earth bonding wire. 7 Upper and lower case inserts are supplied and should be fitted. Trim the inserts to fit incoming electrical or water supplies before fitting. 8 Thoroughly flush the mainsfed cold water supply pipe. The supply must be clean and free from debris BEFORE connecting the Mira Orbis.
Feed cable into Case. Fit Earth sleeve (not supplied) and strip insulation. Do not twist cable cores. Important! Make sure that the inlet earth wire is routed as shown. Failure to do so may cause product malfunction. 13 Loosen the screws in the terminal block and insert the wires. L = BROWN E = GREEN/YELLOW 14 Tighten the screws in the terminal block, ensure the wires are secure and tight. Note! Ensure the earth bonding complies with relevant regulations.
Holes For Cover Retaining Screws Case Insert Fixing Screw Terminal Block Heater Tank Electrical Supply Cable Inlet Connector Assembly Cold Water Supply Pipe (Bottom Entry) Service Tunnel 13
COMMISSIONING If you are unsure how an electric shower works, please read through the User Instructions section before continuing. Note! The temperature display throughout this guide will depend upon inlet supply conditions and product settings. 1 Electrical supply is turned off at the mains. 4 2 3 Turn control to full cold. 5 Turn the water supply fully on. 6 5 - 10 Secs Check for water leaks.
10 11 12 0 - 10 Secs Turn control to full cold. Press the ‘Medium’ button, light on the display comes on 13 The temperature will rise slightly as indicated by the temperature indicator. 14 5 - 10 Secs Press the ‘High’ button, light on the display comes on The flow rate will increase. 15 16 Press STOP button, light on the temperature indicator dims to standby state. When the shower has stopped running the temperature display will only show the clock.
17 18 0 - 5 Secs The shower will purge water from its tank for a few seconds. Residual water may drain over a few minutes. Note! A slight hissing sound may be heard from the Mira Orbis during operation. High mains water pressure and high shower temperatures will affect the tone. This is quite normal in use.
USER INSTRUCTIONS How Your Electric Shower Works Heated water is produced by adjusting the flow of cold water passed through a heater tank. The temperature indicator shows the temperature of the shower. The shower has three heater settings. The warmer the shower, the lower the flow rate and vice versa.
Thermostatic (Temperature-Stable) The shower's top priority is to keep the desired water temperature constant. Electric showers with thermostatic control are able to keep a stable temperature across the range from hot to cold, whilst also dealing with fluctuations in electrical and water supplies. As a result, there is a temperature limit the shower cannot go beyond. For safety, this temperature is factory set and cannot be adjusted to make the shower hotter or colder.
The Effect of Seasonal Changes For a cold shower select ‘Low’. For a summer warm shower select ‘Medium’. For a winter warm shower select ‘High’. During extremes of mains water supply temperature, adjust heater setting to obtain a better showering temperature. The Effect of Other Water Devices Example of how shower temperature stabilises due to pressure changes. Water inlet pressure fluctuations due to other draw offs (e.g. flushing toilet).
USER SAFETY INFORMATION WARNING - THIS SHOWER CAN DELIVER SCALDING TEMPERATURES IF NOT OPERATED, INSTALLED OR MAINTAINED IN ACCORDANCE WITH THE INSTRUCTIONS, WARNINGS AND CAUTIONS CONTAINED IN THIS GUIDE AND ON OR INSIDE THE APPLIANCE. To reduce the risk of fire, electric shock or injury: 1. Make sure that you fully understand how to operate this shower before use, read all operating instructions and retain this guide for future reference. 2.
Using your Shower Read the section “User Safety Information” first.
1 2 Temperature of Shower Clock The temperature indicator becomes illuminated. Switch on the electrical supply and press the ‘Start/Stop’ button 3 4 Check the water temperature before entering shower. Set to the desired position. 5 Allow 10 - 15 seconds for any temperature adjustments to reach the Showerhead. 6 7 Press STOP button, the light on the button goes out. The Shower flow will continue for a few seconds before stopping. Switch off the electrical supply.
Clock Setting Clock Medium Power Pushbutton 23 1. Make sure that the product is in ‘Standby’ state (i.e. Isolator switch on). 2. Press and hold the ‘Medium Power ’ button - the clock backlight will come on full brightness. 3. After a delay of a few seconds the hour segments of the clock start flashing 4. Press ‘Medium Power’ button repeatedly until desired ‘hours’ are displayed on the clock. 5. After a short delay of a few seconds the minute segments of the clock start flashing. 6.
LCD Indications The table below shows what is shown on the LCD display once the shower has been installed and is in use. Product State LCD Display Backlight Comments Off Blank Off Product turned off at pull cord Standby Clock shown Dim Product turned on via Start / Stop button Clock Shown Full Brightness On initial start up unit will turn onto low power.
FAULT DIAGNOSIS The trouble shooting information tabled below gives 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.
Symptom LCD Back Light Low Flow Warning Showerhead dripping OFF Low or no flow rate Heater Setting Low/Medium/ High Probable Cause Probable Remedy OFF Insufficient water supply pressure for shut off. The minimum static pressure to ensure shut off and prevent dripping is 0.2 bar. Note! If other appliances are operating, static pressure may drop below 0.2 bar. Contact local water company. OFF OFF Inlet valve assembly faulty. Replace.
Symptom LCD Back Light Low Flow Warning Heater Setting Low/Medium/ High Probable Cause Probable Remedy No change in temperature between Low/ Medium/High setting. ON ON Any Insufficient mains water pressure. Contact local water company. ON OFF Any Possible failure of thermostatic valve or heater tank. Check the continuity of the heater tank and replace parts as necessary. OFF OFF Control PCB failure. Replace Control PCB assembly. OFF OFF Thermal Trip failed.
USER MAINTENANCE WARNING - TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK OR INJURY: DO NOT use the showerhead to clean the shower. There are no user serviceable parts inside the shower. Only qualified, competent personnel should remove the front cover, mains connections are exposed when the cover is removed. If the shower is not to be used for a long period, the electrical supply and water supply to the shower should be isolated.
Servicing WARNING There are no user serviceable parts inside the shower. MAINS CONNECTIONS ARE EXPOSED WHEN THE COVER IS REMOVED. Servicing of the shower must only be carried out by qualified, competent personnel following the instructions provided in this guide and those provided with any spare part. Before replacing any parts, ensure that the underlying cause of the malfunction has been resolved.
Clock Battery Replacement Procedure WARNING There are no user serviceable parts inside the shower. Only a competent tradesperson should remove the front cover! MAINS CONNECTIONS ARE EXPOSED WHEN THE COVER IS REMOVED. Read the section “Important Safety Information” first. 1 2 3 4 Make sure that the electrical supply is turned off at the mains. Remove the three screws. Carefully remove the cover, making sure that you do not strain the multi-connector.
SPARE PARTS B 1647.096 Terminal Block B 1647.105 Relay PCB 1647.095 Thermal Switch 1647.008 (9.0kW) 1647.009 (9.8kW) 1647.010(10.8kW) Heater Tank 1647.103 Inlet Valve A B B 406.27 Inlet Filter B 405.58 Inlet Connector 1647.102 Control Belt 416.38 Inlet Clamp 1647.101 Outlet Connector B 416.51 Coil A B LCD Display 1647.107 1647.108 Thermistor 1647.109 (White) 1647.150 (Black) Service Tunnel and Case Inserts 1647.106 Control PCB 1563.518 Component Pack - identified 'A' 1563.
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 card, 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.
