Summary of Contents for Caradon Plumbing Mira Elite 8.5
- Page 1 PUMPED ELECTRIC SHOWER Installation Operation &B Maintenance Guide These insTrucTions are To be lefT wiTh The user...
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Page 2: Table Of Contents
contents section Page 1 ..important safety information ........... 4 2 ..introduction ...............7 3 ..Pack contents checklist ..........8 4 ..Specifications ..............9 5 ..installation requirements: Plumbing ..............10 Electrical ..............14 6 ..installation: Appliance ..............16 Shower fittings ............ - Page 3 appendices 1 ..Dimensions: Appliance ..............39 Water and cable entry points ........40 2 ..spare Parts: Spare parts list ............42 Spare parts diagram ..........43 3 ..optional accessories ............. 44 4 ..revisions and corrections ..........45 5 ..
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Page 4: Important Safety Information
Section important safety information 1. caution! 1.1. Read all of these instructions. 1.2. Retain this guide for later use. 1.3. Pass on this guide in the event of change of ownership of the installation site. 1.4. Follow all warnings, cautions and instructions contained in this guide. 1.5. - Page 5 2. warninG! 2.1. Products manufactured by us are safe and without risk provided they are installed, used and maintained in good working order in accordance with our instructions and recommendations. 2.2. THIS APPLIANCE MusT BE EARTHED. 2.3. In accordance with ‘The Plugs and Sockets etc. (Safety) Regulations 1994’, this appliance is intended to be permanently connected to the fixed electrical wiring of the mains system.
- Page 6 2.15. Moving parts are exposed when the cover is removed. 2.16. Refer to the wiring diagram before making any electrical connections. 2.17. Ensure all electrical connections are tight, to prevent overheating.
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Page 7: Introduction
The Mira Elite 8.5 (the appliance) features an internal pump unit which has been designed to provide all year round performance, even at the highest flow rates which occur during the summer months. The appliance has separate controls for power selection and temperature/flow adjustment. For optimum performance the appliance... -
Page 8: Pack Contents Checklist
Section Pack contents checklist Tick the appropriate boxes to familiarize yourself with the part names and to confirm that the parts are included. 1.Mira elite 3 x Wall Screws 3 x Wall Screws 1 x Olive 1 x Compression Nut ... -
Page 9: Specifications
30°C. 2.4. The following power ratings for the heater tanks are available with their respective voltages: Mira Elite 8.5 240V 36 Amps Mira Elite 8.5 230V 38 Amps 2.5. The motor will absorb approximately 100 Watts maximum power under normal working conditions. -
Page 10: Installation Requirements
Section installation requirements 1. Plumbing Read the section “important safety information” first 1.1. The appliance is designed to operate with water supply pressures from 0.008 bar (80 millimetres head) to 1 bar (10 metres head) (i.e. the vertical distance from the base of the cold cistern to the top of the appliance). However, the minimum head required will increase with pipe length and the guide given in paragraph 1.17. - Page 11 1.4. We recommend that a non restrictive (free flowing) isolating valve is fitted into the supply from the cold water cistern, for maintenance purposes. 1.5. The appliance must be fitted ONTO the finished wall surface i.e. on top of the tiles. Do noT block the air ventilation gaps around the sides of the unit, either by tiling up to the sides of the unit or by using a sealant around the case.
- Page 12 1.13. To comply with Bye-law 17 which refers to shower hose connections, 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 great majority of user requirements for shower installations with flexible outlet fittings. However, there will be occasions when the hose retaining ring will not provide a...
- Page 13 1. Pipework Quantity a head loss Per size Total head loss Metre b (mm) a x b 15 mm pipe 80 mm 22 mm pipe 15 mm 2. elbows head loss Per size Total head loss Quantity c elbow D (mm) c x D 15 mm 30 mm...
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Page 14: Electrical
Mira Elite 8.5 240V 36 Amps Mira Elite 8.5 230V 38 Amps note! Voltage drop due to local heavy demand will reduce the shower performance. - Page 15 2.7. The appliance must be earthed by connecting the supply cable earth conductor to the earth terminal. All exposed metal parts within 3 metres of the shower, within the shower room, must be electrically bonded to earth using a minimum cable size of 2.5 millimetres 2.8.
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Page 16: Installation
Section installation 1. appliance Read the section “important safety information” first warninG! Isolate the electrical and water supplies before proceeding with the installation of the appliance. warninG! Do noT connect this appliance to a mains-fed water supply. Such a connection will damage the appliance, and is not covered under the manufacturer’s guarantee. - Page 17 1.4. Slide out the case insert adjacent to the 15 mm inlet compression connector. 1.5. Determine whether the cold water supply will be top (falling), bottom (rising), or back inlet to the appliance. Remove the inlet blanking cap. 1.6. Swivel the 15 mm inlet compression connector to suit. Avoid trapping the green earth bonding wire.
- Page 18 1.9. Install the cistern-fed cold water supply pipe. An installation pipe template is supplied (refer to Appendix 5) and can be used so the last 150 mm of the incoming supply pipe can be bent to 17 °. The 17 ° bend in the pipe ensures that the supply pipe lies parallel to the finished surface of the wall. It also ensures that no stress is put...
- Page 19 1.13. Bring the electrical supply cable into the case via one of the cable entry points, and offer up to the terminal block. Cut the thinned case areas as necessary. 1.14. Strip back approximately 40 mm of the outer cable insulation. Lift up the bottom of the dripshield to access the terminal block (there is no need to remove the...
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Page 20: Shower Fittings
1.15. Refit the case insert and ensure that the earth bonding wire to the inlet connector is tight. Finally re-tighten the screws of the terminal block. 1.16. Refit the cover by locating the top of the cover onto the spigot on the top of the case. Push the bottom of the cover against the case and tighten the captive cover retaining screw. -
Page 21: Commissioning
Section commissioning Read the section “important safety information” first The appliance must not be run dry. Before proceeding any further with the installation it is important to prime the pump assembly before switching on the electrical supply. If you are unsure how electric showers work, it is advisable to read, Section 8, “advice to users”... - Page 22 Turn the right-hand control knob slowly clockwise, as the knob is turned the flow will be reduced and the temperature will remain cool. Turn the knob back to full flow (this checks the operation of the regulator assembly). Turn the left-hand control knob to position “LOW”. The temperature of the water should rise slightly. Allow a few seconds for the warm water to reach the handset (this checks the operation of the half power element).
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Page 23: Operation
Section operation 1. Advice to users Read the section “important safety information” first 1.1. Pumped electric showers work by taking cold water and passing it over the heating elements contained in the heater tank of the shower appliance. 1.2. 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. The holes in the spray plate of the shower handset should always be kept clean to maintain a consistent flow and assist in temperature control. - Page 24 (iii) The left-hand scale is temperature rise. (Temperature rise = Showering temperature minus the incoming cold water temperature.) Example: For a Mira Elite 8.5 on full power setting with cistern-fed 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.
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Page 25: Appliance
2. Appliance Read the section “important safety information” first. 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. 2.1. -
Page 26: Cleaning
3. cleaning Read the section “important safety information” first. 3.1. Many household cleaners contain abrasives and chemical substances, and should not be used for cleaning plated or plastic fittings. These finishes should be cleaned with a mild washing up detergent or soap solution, and then wiped dry using a soft cloth. 3.2. Spray pattern deterioration can be caused by either, debris trapped in the spray head, or a limescale buildup in the spray holes. -
Page 27: Troubleshooting
4. Troubleshooting Read the section “important safety information” first The Mira Elite range of pumped electric showers are fully performance tested after assembly. In the unlikely event that you experience problems with your shower, then the following procedures will enable you to undertake basic troubleshooting before contacting the person responsible for installing your shower. - Page 28 Malfunction cause remedy Appliance fails to Double-pole pullcord switch Switch on. operate in any turned off. switch position. Supply fuse failed/RCD Contact a competent tripped (which signals an electrician. electrical fault). Shower The appliance is fitted with a Turn the temperature temperature fixed temperature thermal knob sufficiently alternates hot safety switch.
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Page 29: Maintenance
Section Maintenance 1. fault Diagnosis Read the section “important safety information” first warninG! Isolate the electrical and water supply before removing the cover. warninG! Mains connections are exposed when the cover is removed. warninG! Refer to wiring diagram before making any electrical connections warninG! Ensure all electrical connections are tight to prevent overheating. - Page 30 Malfunction cause remedy No water flow or Isolating valve turned off. Turn on. very low flow of water. Spray plate blocked. Remove and clean following the instructions contained in the Installation, Operation and Maintenance Guide supplied with the shower fittings. Inlet strainer blocked. Remove and clean.
- Page 31 Malfunction cause remedy Flow regulator faulty. Clean, or replace if still Rotation of faulty. temperature knob has little or no effect on temperature. Spray plates blocked. Remove and clean following the instructions contained in the Installation, Operation and Maintenance Guide supplied with the...
- Page 32 Malfunction cause remedy The temperature control The temperature Shower cycles has been turned too far control should be on/off/on at high clockwise. To protect turned anticlockwise temperature/low the appliance, a thermal to increase the flow. switch disconnects the flow, preventing the power to reduce the water operation of the...
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Page 33: Wiring Diagram
wiring diagram Mira elite electric shower All dimensions are nominal and in millimetres. -
Page 34: Appliance Cover - Removal
2. appliance cover - removal Read the section “important safety information” first 2.1. Release the captive cover retaining screw. Do not remove appliance control knobs. 2.2. Remove cover by pulling cover in an outward and upwards direction from the bottom. If the control knobs are inadvertently removed, refer to;... -
Page 35: Appliance Control Knobs - Refitting
3. Appliance control knobs - refitting Read the section “important safety information” first Do not remove the appliance control knobs when removing the cover of the appliance, if they have been inadvertently removed, then the following procedure will allow them to be refitted. 3.1. Ensure that the clear plastic dripshield is in place over both spindles with the label facing forward. -
Page 36: Inlet Strainer - Cleaning
4. inlet strainer - cleaning Read the section “important safety information” first 4.1. To clean the inlet strainer: Inlet 4.1.1. Remove the hexagon Strainer nut on top of 15 mm inlet compression connector. Do not remove the 'O' seal. 4.1.2. Remove the inlet strainer. 4.1.3. -
Page 37: Flow Switching Assembly - Renewal
5.4. To renew the transfer tube: 5.4.1. Refer to "section 9, Maintenance, 5.2." To remove the pump and motor assembly” and follow instructions 5.2.1. to 5.2.3. inclusive. 5.4.2. Release transfer tube retaining clip. 5.4.3. Remove transfer tube. 5.4.4. Fit new transfer tube. Make sure that the transfer tube is fitted correctly. Transfer Tube Slots To Be Fitted To Pump Outlet End 5.4.5. Refit in reverse order. -
Page 38: Thermal Switch - Renewal
6.2. To renew the thermal switch: 6.2.1. Remove appliance knobs and dripshield. 6.2.2. Remove wiring connections from thermal switch. Note connection sequence. 6.2.3. Remove thermal switch retaining nuts and slide out from flange retainer. 6.2.4. Renew thermal switch. 6.2.5. Refit in reverse order. Ensure that new switch is correctly seated flat, on top of heater tank. 6.3. To refit the tank pressure relief ball: 6.3.1. Remove pressure relief valve. 6.3.2. Moisten ball and push firmly into inner end of relief valve. -
Page 39: Dimensions
Appendix Dimensions 1. appliance 72 mm 218 mm 344 mm... -
Page 40: Water And Cable Entry Points
2. water and cable entry points Cable entry Fixing points (x3) Pipe entry Datum point important Points 1 The datum point has been taken as the centre position of the water inlet pipe when used as a back entry. 2 The top and bottom of the case walls have thinned sections for ease of removal to accept top or... -
Page 41: Spare Parts
Appendix spare Parts spare Parts... -
Page 42: Spare Parts List
1. spare parts list 001 32 Cover Assembly 119 77 Clamp Bracket 126 69 Case Insert 147 50 Relief Valve Assembly 215 07 Transfer Tube 215 10 Motor and Pump Assembly 215 12 Thermal Trip Pack (Sintech) 365 36 Dripshield 555 76 Inlet Connector Assembly 588 32... -
Page 43: Spare Parts Diagram
2. spare parts diagram 215 10 215 12 126 69 555 76 588 34 215 07 119 77 365 36 001 32 932 07 588 32 857 35 872 01 588 33 872 33 895 09 895 10 147 50... -
Page 44: Optional Accessories
Appendix optional accessories rf2 Fixed handset holder. A simple alternative or additional holder for a shower handset, available as an optional accessory from your Mira stockist. DcV-h: An outlet double check valve, designed to prevent the backflow or backsiphonage of potentially contaminated water, through shower controls which are fitted with a flexible hose as part of the outlet shower fitting. Its correct fitting will ensure compliance with Bye-law 17. The inclusion of the Mira DCV-H will increase the required supply pressure typically by 0.1 bar. -
Page 45: Revisions And Corrections
Appendix revisions and corrections July 1998 — revision: P3185 to P3185/1 summary of revisions 18 T R Para 1.9. changed to change main-fed cold water supply to cistern-fed cold water supply. 45 T R Summary of revisions and corrections amended. B T R Issue number and date change. -
Page 46: Installation Pipe Template
Appendix installation Pipe Template 17 ° Actual Size... - Page 47 notes...
- Page 48 Telephone 01242 262888 (12 Direct lines) spare Parts and ask for caradon Plumbing solutions customer At Caradon Plumbing Solutions we keep a stock of all services functional parts of our products for up to ten years from For advice on product maintenance •...