Related Manuals for Mira Sprint 7.5
Summary of Contents for Mira Sprint 7.5
- Page 1 ELECTRIC SHOWERS Installation Operation &B Maintenance Guide THESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER back...
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Page 2: Table Of Contents
Contents Section Page 1 ..Introduction ..............3 2 ..Important Safety Information ........... 4 3 ..Pack Contents Checklist ..........7 4 ..Dimensions ..............8 5 ..Wiring Diagram ..............9 6 ..Specifications ..............10 7 ..Installation Requirements ..........10 8 .. -
Page 3: Introduction
Mira Sprints covered by this guide: Mira Sprint 7.5 - A 7.5 kW 240 V AC heater with a Mira RF1 adjustable spray handset with three different spray actions (start, force and soothe). Individual lights indicate 'POWER' and 'LOW FLOW'. Supplied complete with flexible hose, adjustable clamp bracket assembly, slide bar and supports, soap dish and hose retaining ring. -
Page 4: Important Safety Information
1.5. Make sure that any pipework that could become frozen is properly insulated (Bye- law 49). 1.6. DO NOT operate this Mira Sprint if it is frozen. Allow the Mira Sprint to thaw before using again. The shower unit must not be fitted where it may be exposed to freezing conditions. - Page 5 2.2. Pass on this guide in the event of change of ownership of the installation site. 2.3. Follow all warnings, cautions and instructions contained in this guide, and on or inside the Mira Sprint. 2.4. The electrical installation must comply with BS 7671 “Requirements for Electrical Installations”...
- Page 6 2.8. When this Mira Sprint has reached the end of its serviceable life, it should be disposed of in a safe manner, in accordance with current local authority recycling,...
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Page 7: Pack Contents Checklist
Tick the appropriate boxes to familiarize yourself with the part names and to confirm that the parts are included. 1. Mira Sprint 7.5, 8.5 and 9.5 1 x Mira Sprint 7.5, 8.5 and 9.5 1 x Olive 1 x Compression Nut... -
Page 8: Dimensions
Section Dimensions 203.5 mm 79 mm Power Low Flow 342 mm Temperature Stop Start... -
Page 9: Wiring Diagram
Section Wiring Diagram Thermal Cutout Dual Disc 89 Brown 96 Red 97 Brown 99 Brown 93 Black Pressure/Power Selector Switch Solenoid Valve 95 Black 86 Brown 88 Red Power On Low Flow Neon Neon On/Off Load 94 Blue 90 Blue 91 Green Tank Connection 92 Green... -
Page 10: Specifications
90 ° elbows. 1.3. The Mira Sprint is suitable for installation within the shower area. It is fitted with a pressure relief device and must be positioned over a water catchment area with... - Page 11 15 mm compression fitting supplied from the top, bottom or back. 1.5. Do not fit the Mira Sprint to the wall and tile up to the case. The Mira Sprint must be fitted on to a finished flat and even wall surface. This is important as difficulty...
- Page 12 As these Mira Sprints are high power units, it is essential to contact your electricity supply company to ensure that the supply is adequate for the Mira Sprint. Voltage drop due to local heavy demand will reduce the shower's performance.
- Page 13 2.6. A separate, permanently connected supply must be taken from the consumer unit to the Mira Sprint through a double-pole switch, which has at least 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.
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Page 14: Installation
1.1. Decide on a suitable position for the Mira Sprint (minimum distance of 200 mm from the ceiling to allow for cover fit and removal). The position of the Mira Sprint 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 15 1.10. Drill and plug the top two fixing holes. Secure the Mira Sprint to the wall with the screws provided. Drill the bottom fixing hole with the product in place. Alternative fixings (not supplied) may be necessary for some wall structures.
- Page 16 1.12. Make the connection to the mains-fed cold water supply pipe. 1.13. Bring the electrical supply cable into the case through one of the cable entry points. 1.14. Strip back sufficient of the outer cable insulation to enable routing to terminal block.
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Page 17: Commissioning
Section Commissioning 1. Mira Sprint If you are unsure how electric showers work, please read through, Section 10, Operation before continuing. 1.1. Make sure that the START/STOP button is in the outermost position and that the electrical supply has Stop Start been isolated. - Page 18 Isolate the power at the double pole switch. Note! A slight hissing sound may be heard from the Mira Sprint during operation. High mains water pressure and high shower temperatures will effect the tone. This is quite normal in use.
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Page 19: Operation
1.3. The Mira Sprint is designed to stabilise temperature changes caused by water pressure fluctuations. These can result from taps being turned on or off or toilets being flushed. - Page 20 The left-hand scale is temperature rise. (Temperature rise = Showering temperature minus the incoming cold water temperature.) Example: For the Mira Sprint 7.5 kW on full power setting with an incoming water supply at 10°C and a showering temperature at 45°C, the temperature rise is 35°C. The flow rate...
- Page 21 Clockwise rotation will give warmer water with less flow. Anticlockwise rotation will give cooler water with more flow. 2.6. TO TURN OFF the Mira Sprint press the STOP button.The appliance will continue to run for a few seconds before stopping.
- Page 22 High Medium COLD Power Low Flow Temperature Stop Start Stop Start Press to Start / Stop Hotter Cooler...
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Page 23: Maintenance
Section Maintenance 1. General Read the section “Important Safety Information” first. Providing the shower has been correctly installed and is operated in accordance with the instructions contained in this guide, difficulties should not arise. If any maintenance is required then it must be carried out by a competent tradesperson for whom the maintenance instructions are provided. - Page 24 3.8. Remove the heater tank and the inlet connector assembly from the flow valve and switch assembly. 3.9. Remove the microswitches from the flow valve and switch assembly. 3.10. Make a note of the positions of the solenoid wires on top of the heater tank. Remove the solenoid wires.
- Page 25 4. 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. 4.1. Remove the three cover retaining screws, the cover and the service tunnel. 4.2.
- Page 26 4.13. Refit the components in reverse order. Make sure that the electrical wires are installed in the correct positions. Thermal Switch Heater Tank Heater Tank Retaining Screws Outlet Connector Flow Valve and Switch Assembly Clamp Bracket Solenoid Valve Retaining Screws Inlet Connector Clamp Bracket Heater Tank - Removal and Installation...
- Page 27 5.4. Remove the screws that hold the inlet clamp bracket in position and remove the clamp bracket. 5.5. Remove the screws that hold the flow valve and switch assembly and the heater tank in position. 5.6. Carefully pull the flow valve and switch assembly and the heater tank away from the case.
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Page 28: Fault Diagnosis
Section Fault Diagnosis Fault Diagnosis Warning! There are no user serviceable components beneath the cover of the appliance. Only a competent tradesperson should remove the cover. The trouble shooting information tabled below gives details on what you can do as a user without removing the cover, should you encounter difficulties whilst operating the shower. - Page 29 Malfunction Cause Remedy (Continued) Remove and clean (Refer to Handset sprayplate Maintenance in the I, O & M blocked. guide for the fitings). Other outlets being used Ensure other outlets e.g. bath, whilst showering, causing washing machine or water pressure to drop dishwasher are not in use below minimum required whilst showering.
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Page 30: Spare Parts
Section Spare Parts 1. Mira Sprint Spare Parts List 416 38 Clamp Bracket (Inlet) 416 41 Thermal Switch 416 42 Cover Seal (not shown) 416 43 Splash Guard 416 44 Screw Pack - components identified 'A' 416 47 Inlet Connector Assembly... - Page 31 2. Mira Sprint Spare Parts Diagram 417 49 416 41 419 25 419 23 419 22 419 21 416 43 416 52 417 51 872 28 416 50 416 49 419 28 872 01 419 27 417 50 416 47...
- Page 32 (three years for the Mira Excel thermostatic range) installer. from the date of purchase, provided that the product has...