Mira Advance Installation, Operation, Maintenance Manual
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Mira Advance Installation, Operation, Maintenance Manual

Mira Advance Installation, Operation, Maintenance Manual

Electric showers. standard & memory models cove
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See also: User Manual , Installation Manual
THESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER
THESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER
THESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER
THESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER
THESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER
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ELECTRIC SHOWERS
Installation
Operation
Maintenance Guide
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  • Page 1 ELECTRIC SHOWERS Installation Operation &B Maintenance Guide THESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER THESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER THESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER THESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER THESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER back 1 1 1 1 1...

  • Page 2: Table Of Contents

    Contents Contents Contents Contents Contents Page Page Page Page Page Introduction Introduction Introduction ....................................... 3 3 3 3 3 Introduction Introduction .......................... Important Safety Information Important Safety Information .................... 4 4 4 4 4 ..........Important Safety Information Important Safety Information ..........

  • Page 3: Introduction

    Introduction Introduction Introduction Thank you for purchasing a quality Mira product. To exploit the full potential of your new shower, please take time to read this guide thoroughly, having done so, keep it handy for future reference. The Mira Advance is a high performance electric shower, which provides thermostatic temperature control.

  • Page 4: Important Safety Information

    1.6. 1.6. DO NOT DO NOT DO NOT operate this Mira Advance if it is frozen. Allow the Mira Advance to thaw before using again. The shower unit must not be fitted where it may be exposed to freezing conditions.
  • Page 5 2.3. 2.3. 2.3. Follow all warnings, cautions and instructions contained in this guide, and 2.3. 2.3. on or inside the Mira Advance. 2.4. 2.4. 2.4. 2.4. The electrical installation must comply with the “Requirements for Electrical 2.4. 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.
  • Page 6 2.8. 2.8. 2.8. 2.8. When this Mira Advance 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. 6 6 6 6 6...
  • Page 7 Contents Chec klist ü ¨ Tick the appropriate boxes to familiarize yourself with the part names and to confirm that the parts are included. ¨ 1 x Mira Advance ¨ 2 x Wall Screws ¨ 1 x Earth Sleeve ¨...

  • Page 8: Dimensions

    Caradon Mira contact telephone and fax numbers. Section Dimensions Dimensions Dimensions Dimensions Dimensions 1. 1. 1. 1. 1. Mir a Adv a Adv ance ance Mir a Adv a Adv a Adv ance ance ance 84.5 Flow Standard Model 84.5...
  • Page 9 Serial No JMS2001 Mira Advance 8.7M 240V ~ 8.7kW 230V ~ 8.0kW 0.5 – 10 BAR OPEN OUTLET 0 BAR IP34 Caradon Mira Ltd. Cheltenham GL52 5EP Inlet Connector Assembly (Bottom inlet shown) Inlet Connector centre line INLET 46.5 All dimensions are nominal and in millimetres.
  • Page 10 Section Mir a Adv a Adv a Adv ance a Adv ance ance Wir ance Wir ing Diag ing Diag ing Diag r r r r r am ing Diag a Adv ance ing Diag Temperature Main Control Board Potentiometer (78) PL11 Terminal Block...
  • Page 11 1.1. The inlet connector assembly incorporates an inlet filter, which swivels to allow 1.1. these entry positions, top, top back, bottom and bottom back inlet. 1.2. 1.2. The outlet terminates with a 1/2" BSP male thread for connection to a Mira 1.2. 1.2. 1.2.

  • Page 12: Installation Requirements

    However, this will result in reduced power and therefore reduced flow. 1.2. 1.2. 1.2. The Mira Advance is suitable for installation within the shower area and must be 1.2. 1.2. positioned over a water catchment area with the controls at a convenient height for the user.
  • Page 13 (jumper) as this can lead to a build up of static pressures. 1.9. 1.9. 1.9. The Mira Advance is fitted with a 1/2" BSP male outlet thread, to accept a Mira 1.9. 1.9. shower hose.
  • Page 14 As these Mira Advances are high power units, it is essential to contact your electricity supply company to ensure that the supply is adequate for the Mira Advance. Voltage drop due to local heavy demand will reduce the shower's performance.
  • Page 15 DO NOT turn-on the electrical supply until the plumbing has been completed. Plumbing and Electrical Schematic Diagram Plumbing and Electrical Schematic Diagram Plumbing and Electrical Schematic Diagram Plumbing and Electrical Schematic Diagram Plumbing and Electrical Schematic Diagram Mira Advance Consumer Unit Flow Medium Double-pole Isolating Switch Optional Outlet...

  • Page 16: Installation

    1.1. To remove the Mira Advance case 1.1. 1.1. remove the screw at the bottom of the case. Screw 1.2. 1.2. 1.2. Pull the bottom of the Mira Advance 1.2. 1.2. cover outwards and upwards off the case. 1.3. 1.3. 1.3.
  • Page 17 Supply Back Inlet 1.9. 1.9. 1.9. Remove as appropriate, the thinned 1.9. 1.9. Supply sections in the Mira Advance case, to allow the pipe and cable to enter the product. Front of Mira 1.10. 1.10. Install the mains-fed cold water Install the mains-fed cold water 1.10.
  • Page 18 1.13. 1.13. 1.13. Offer the Mira Advance up to the 1.13. 1.13. wall and temporarily connect the mains-fed cold water supply pipe. Mark through the casing the...
  • Page 19 Press the air bleed button, located on top of the flow valve, several times. This will allow the Mira Advance to fill with water and expel any entrapped air. Note! Note!
  • Page 20 1.19. 1.19. Connect the wire 78 multi-connector 1.19. 1.19. lead from the relay board, in the Mira Advance, to the socket on the control PCB located in the cover. The multi- connector is a one way fit into the receiving socket on the control PCB.
  • Page 21 1. 1. 1. 1. 1. Connect the flexible hose from the shower fitting to the outlet of the Mira Advance. Ensure that the hose seals are fitted, and that the handset is in the handset holder and aimed into the water catchment area.
  • Page 22 Note! High cold water mains supply pressures and high shower temperatures Note! Note! will cause a slight audible hissing sound to be heard from the Mira Advance whilst it is operating. This is quite normal and does not indicate that there is a fault with the Mira Advance.

  • Page 23: Fault Diagnosis Fault Diagnosis

    "Important Safety Information" "Important Safety Information" "Important Safety Information" first. "Important Safety Information" 1.1. 1.1. 1.1. In the event that the Mira Advance fails to respond to any push-button instruction, 1.1. 1.1. first first or exhibits unusual performance characteristics during operation, first...

  • Page 24: Maintenance Maintenance

    The Mira Advance then calculates the flow rate and power level, to keep the outgoing temperature constant. This mode of operation requires the staged power up and power down of individual heating elements. During this sequence the user may hear a number of audible 'clicks' and the flow rate may change.
  • Page 25 Example: Example: Example: For the Mira Advance 9.8 kW on full power setting with an incoming water supply at 10°C and a heater tank outlet temperature at 42°C, the temperature rise is 32°C. The flow rate is approximately, 4.5 l/min.
  • Page 26 FLOW HIGH MEDIUM FLOW HIGH MEDIUM FLOW HIGH MEDIUM Flow COLD Thermostatic Performance Thermostatic Performance Thermostatic Performance Thermostatic Performance Thermostatic Performance To maintain thermostatic performance the unit may override the selected flow condition. The selected flow indicated does NOT change. Low Pressure Thermostatic Performance Low Pressure Thermostatic Performance Low Pressure Thermostatic Performance...
  • Page 27 The red indicator will illuminate and an audible tone will confirm the action. The Mira Advance will continue to run for a few seconds before stopping. This Store phased shutdown is to remove heat from the element assembly and tank body.
  • Page 28 Press one of the Press 'STOP' before Press 'STOP' before Press 'STOP' before Press 'STOP' before Press 'STOP' before turning off the Mira turning off the Mira numbered preset buttons turning off the Mira turning off the Mira turning off the Mira...
  • Page 29 "Important Safety Information" "Important Safety Information" first. The Mira Advance electric shower is fully performance tested after assembly. In the unlikely event that you experience problems with the Mira Advance, then the following procedures will enable you to undertake basic troubleshooting before contacting the person responsible for installing your shower.
  • Page 30 (approx. 10 secs) for (approx. 10 secs) for (approx. 10 secs) for (approx. 10 secs) for (approx. 10 secs) for Mira Advance to Mira Advance to Mira Advance to Mira Advance to Mira Advance to reset reset...
  • Page 31 When following these instructions, it is sometimes necessary to examine the Mira Advance with the electrical supply turned on, as well as the water supply. It is therefore essential that the appropriate safe working practices are followed in accordance with the current Health And Safety Legislation.
  • Page 32 78 multi- wire 78 multi-connector. connector. Ensure that the connector is fully pushed home. ü Renew flow valve. Mira Advance Faulty flow valve. continues to drip after being turned off, or will not shut off. ü Shower head will continue...
  • Page 33 Cause Cause Cause Remedy Remedy Remedy Remedy Remedy Faulty flow valve. Renew flow valve. Mira Advance leaks from bottom Faulty tank seal. Renew tank seal. of case. Faulty tank body/sensor Renew tank body/ assembly. sensor assembly. Dry thoroughly before retrying unit.
  • Page 34 Mira seconds) for Mira seconds) for Mira seconds) for Mira seconds) for Mira Advance to reset Advance to reset Advance to reset, turn Advance to reset Advance to reset ü on pull-cord switch and Any other fault operate Mira Advance.
  • Page 35 Thermal Switch Element Assembly Transformer Clip (secures Connector thermal switch) Lead Socket Flow Valve Element Retaining Ring Solenoid Connector Lead Tank Body Sensor Socket Wire 78 Multi- Connector Relay Board Lead Socket Note: The Connector Lead Sockets for the Flow Valve Terminal Block Turbine and Inlet Sensor, and the Tank Body Sensor are...
  • Page 36 2. 2. 2. 2. 2.1. 1. 1. 1. 1. To remove the cover: 2.1.1. 2.1.1. 2.1.1. Remove the screw located at 2.1.1. 2.1.1. the bottom of Mira Advance case. 2.1.2. 2.1.2. C a u t i o n ! 2.1.2. C a u t i o n !
  • Page 37 2.2. 2.2. 2.2. 2.2. To refit the cover: 2.2. 2.2.1. 2.2.1. 2.2.1. 2.2.1. 2.2.1. Connect the wire 78 multi-connector to the socket on the control PCB. The wire 78 multi-connector lead plug is a one way fit into the socket and must be pushed fully home (Refer to Figure 5).
  • Page 38 5.1. 5.1. 5.1.1. 5.1.1. Disconnect the three-pin connector lead from the control PCB, located 5.1.1. 5.1.1. 5.1.1. inside the Mira Advance cover. 5.1.2. 5.1.2. Remove ‘TEMPERATURE’ control knob. 5.1.2. 5.1.2. 5.1.2. 5.1.3. 5.1.3. Undo the temperature potentiometer retaining nut and remove the 5.1.3.
  • Page 39 8.1.7. 8.1.7. 8.1.7. 8.1.7. 8.1.7. Lift and partially separate the flow valve from the outlet of heater tank. Allow the water to drain out of the bottom of Mira Advance. 8.1.8. 8.1.8. 8.1.8. 8.1.8. 8.1.8. When relevant maintenance procedure has been completed, refit in reverse order.
  • Page 40 Section 8, Maintenance: "8.1. To drain the Mira Advance" Section 8, Maintenance: "8.1. To drain the Mira Advance" 8.4.1. 8.4.1. Refer to Section 8, Maintenance: "8.1. To drain the Mira Advance" 8.4.1. Section 8, Maintenance: "8.1. To drain the Mira Advance"...
  • Page 41 8.5.4. 8.5.4. 8.5.4. 8.5.4. 8.5.4. Withdraw the element assembly from tank body/sensor assembly. 8.5.5. 8.5.5. 8.5.5. 8.5.5. 8.5.5. Renew element assembly. Make sure that the location spigot on the tank body/sensor assembly engages in the cutout in the element assembly. 8.5.6.
  • Page 42 The Mira Advance has the facility to limit the maximum temperature to a special low value of 43°C if required. The Mira Advance is fitted with a removable link wire, which can be cut to reset the normal operating limit of 48°C to the lower value of 43°C.
  • Page 43 Spare P Spare P ar ar ar ar ar ts ts ts ts ts Spare P Spare P Spare P...

  • Page 44: Spare Parts

    Section Spare Parts Spare Parts Spare Parts Spare Parts Spare Parts 1. 1. 1. 1. 1. Spare P Spare P Spare Par ar ar ar arts List (memor Spare P ts List (memor ts List (memor ts List (memory model) y model) y model) y model)
  • Page 45 2. Spare Parts Diagram (memory model) 2. Spare Parts Diagram (memory model) 2. Spare Parts Diagram (memory model) 2. Spare Parts Diagram (memory model) 2. Spare Parts Diagram (memory model) 406 38 406 88 405 05 406 46 405 56 430 27 405 36 406 19...
  • Page 46 3. 3. 3. 3. 3. Spare P Spare P Spare P Spare P ar ar ar ar ar ts List (standard model) ts List (standard model) ts List (standard model) Spare P ts List (standard model) ts List (standard model) 405 05 Element Retaining Ring 405 32...
  • Page 47 4. 4. 4. 4. 4. Spare P Spare P Spare P ar ar ar ar ar ts Diag Spare P ts Diag ts Diag ts Diag r r r r r am (standard model) am (standard model) am (standard model) Spare P ts Diag am (standard model)
  • Page 48 (three years for the Mira Excel thermostatic range) from the date of purchase, provided that the product has If this does not resolve the difficulty, contact our Customer...

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