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Summary of Contents for Mira VISTA
- Page 1 MIRA VISTA ELECTRIC SHOWER Installation and User Guide These instructions are to be left with the user...
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Page 2: Table Of Contents
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... -
Page 3: Introduction
Products covered by this guide: Mira Vista 8.5 kW 240 V AC (7.8 kW 230 V AC) heater. Available in a white finish. Mira Vista 9.5 kW 240 V AC (8.7 kW 230 V AC) heater. Available in a white finish. -
Page 4: Important Safety Information
12. Mains connections are exposed when the cover is removed, only a competent person should remove the front cover. We recommend any maintenance work is carried out by a Mira Service Engineer or suitably qualified tradesperson. There are no user serviceable parts inside the shower. - Page 5 16. Electric showers 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 shower. 17. Rapid or excessive operation of the shower controls may result in high or unstable outlet water temperatures.
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Page 6: Pack Contents
PACK CONTENTS Tick the appropriate boxes to familiarise yourself with the part names and to confirm that the parts are included. 1 x Mira Vista Electric Shower Documentation 1 x Guarantee Brochure... -
Page 7: Specifications
SPECIFICATIONS Dimensions 209 mm 101 mm 41 mm Wiring Diagram START/STOP... -
Page 8: Plumbing
8.5 kW Flow Rate (l/min) Example: For the Mira Vista 8.5 kW on full power setting with an incoming water supply at 10°C and a showering temperature at 42°C, the temperature rise is 32°C. The flow rate is therefore, 4 l/min. -
Page 9: Installation Requirements
INSTALLATION REQUIREMENTS Plumbing The Mira Vista 8.5 kW and 9.5 kW electric shower is designed to operate with a minimum maintained inlet pressure of 70 kPa (0.7 bar) up to a maximum static inlet pressure of 1000 kPa (10 bar). - Page 10 12. Supply pipework MUST be flushed to clear debris before connecting the appliance. 13. The appliance is fitted with a 1/2” BSP male outlet thread, to accept a Mira Vista shower hose. 14. 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.
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Page 11: Electrical
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 12: Installation
INSTALLATION Warning! Isolate the electrical and water supplies before installing the shower. Remove the three screws that hold the cover on the shower and remove the cover. Decide on a suitable position for the appliance (minimum distance of 200 mm from the ceiling to allow for cover fit and removal). - Page 13 10. The case has thinned sections that Thinned Section 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.
- Page 14 14. Bring the electrical cables into the case. 15. Strip back sufficient of the outer cable insulation to enable routing to terminal block. 16. Fit an earth sleeve to the earth wire. Terminal Block 17. Loosen the screws in the terminal block and insert the bare wires into the clamps.
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Page 15: 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 16: Operation
OPERATION Advice to Users Note! Read the Important Safety Information section first. Warning! The spray plate holes must be kept clear. 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 17 Operation Instructions To turn the shower on 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 ECO. This setting will provide sufficient power when the supply water temperature is warmer, such as in the summer.
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Page 18: Fault Diagnosis
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! Remedy Malfunction... - Page 19 Malfunction Cause Remedy The power is off at the double Switch on the power at the double pole switch. pole switch. The fuse is blown or the MCB/ Renew the fuse or reset the MCB/ RCD has been tripped, indicating RCD.
- Page 20 Malfunction Cause Remedy The temperature is set too high. Shower temperature T u r n t h e t e m p e r a t u r e k n o b This is causing the thermal switch cycles between hot and anticlockwise to reduce the water to turn off the heating element to cold.
- Page 21 Malfunction Cause Remedy Resolve the blocked outlet, and Water leaks from the The pressure relief valve in the replace the tank assembly. bottom of the case near tank has been triggered, (the the outlet, and there is shower has a pressure relief no flow from the handset.
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Page 22: Maintenance
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 23: Spare Parts
SPARE PARTS 406.27 Filter 416.38 Inlet Connector Clamp 439.75 Inlet Connector Assembly 439.76 Clamp Bracket Pack (components identified ‘A’) 439.77 Flow Reg Assembly 8.5 kW 439.79 Switch Assembly, Rotary 439.88 Seal Pack (components identified ‘B’) 439.89 Screw Pack (components identified ‘C’) 439.90 Thermal Trip Assembly 439.92... -
Page 24: Customer Service
You have the assurance of a the product. fully trained Mira Technician, genuine Mira spare parts and ● Water or electrical supply, waste and isolation issues. a 12 month guarantee on any chargeable work done. ● Compensation for loss of use of the product or Payment should be made directly to the Service Technician consequential loss of any kind.
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