Ideal Boilers isar m30100 Installation And Servicing

10INSTALLATIONisar - Installation and ServicingThe boiler does not normally need a bypass but at least someradiators on the heating circuit, of load of at least 10% of theminimum boiler output, must be provided with twin lockshieldvalves so that this minimum heating load is always available.See note regarding thermostatic radiator valves on page 8.Note.Systems incorporating zone valves which couldcompletely cut off the flow through the system must alsoinclude a bypass.BALANCING1. Set the programmer to ON.Close the manual or thermostatic valves on all radiators,5 SYSTEM BALANCINGleaving the twin lockshield valves (on the radiatorsreferred to above) in the OPEN position.Turn up the room thermostat and adjust theselockshield valves to give boiler flow and returntemperatures not more than 20 o C apart.These valves should now be left as set.2. Open all manual or thermostatic radiator valves andadjust the lockshield valves on the remaining radiators,to give around 15 o C temperature drop at each radiator.3. Adjust the room thermostat and programmer toNORMAL settings.6 WATER TREATMENTCentral HeatingThese boilers incorporate an ALUMINIUM heat exchanger.IMPORTANT. The application of any other treatment to this product may render the guarantee of Caradon Ideal LimitedINVALID.Caradon Ideal Limited recommend Water Treatment in accordance with theBenchmark Guidance Notes on WaterTreatment in Central Heating Systems.Caradon Ideal Limited recommend the use of Fernox Copal or MB1, GE Betz Sentinel X100 or Salamander CorrosionGuard inhibitors and associated water treatment products, which must be used in accordance with the manufacturersinstructions.Notes.1. It is most important that the correct concentration of the water treatment products is maintained in accordance with themanufacturers' instructions.2. If the boiler is installed in an existing system any unsuitable additives MUST be removed by thorough cleansing.BS7593:1992 details the steps necessary to clean a domestic heating system.3. In hard water areas, treatment to prevent limescale may be necessary - however the use of artificially softened water isNOT permitted.4. Under no circumstances should the boiler be fired before the system has been thoroughly flushed.Domestic Hot WaterIn hard water areas where main water can exceed 200ppm Total Hardness (as defined by BS 7593:1993 Table 2) a scalereducing device should be fitted into the water boiler cold supply within the requirements of the local water company. Theuse of artificially softened water, however, is NOT permitted.Caradon Ideal Limited recommend the use of Fernox Quantomat, GE Betz Sentinel Combiguard and Calmag CalPhos Iscale reducing devices, which must be used in accordance with the manufacturers instructions.For further information contact:Fernox Manufacturing Co. Ltd, Cookson Electronics, Forsyth Road, Sheerwater, Woking, Surrey. GU21 5RZ. Tel. +44 (0) 1799 521133orG E Betz Ltd, Sentinel Division, Foundry Lane, Widnes, Cheshire, WA8 8UD. Tel. +44 (0) 151 424 5351orSalamander Engineering Ltd, Unit 24, Reddicap Trading Estate, Sutton Coldfield, West Midlands B75 7BU. Tel. +44 (0) 121 378 0952orCalmag Ltd, Unit 4, Crown Works, Bradford Road, Sandbeds, Keighley, West Yorkshire, BD20 5LN. Tel. +44 (0) 1535 210 32014. Injector and housing.15. Venturi assembly.16. Fan assembly.17. Automatic air vent.18. Gas service cock.19. Gas control valve.20. Fan bracket.21. Orifice plate.22. Flue thermistor23. Control therm. (flow/return)24. Overheat thermostat.25. Ignition electrode.1. Front casing panel.2. Boiler sealing panel.3. Sump cover.4. Bottom casing panel.5. Flue sensing nipple.6. Return pipe.8. Flue manifold.9. Flue manifold fixing.10. Interpanel.11. Burner.12. Comb. chamber ins.13. Heat exchanger.7 BOILER ASSEMBLY - Exploded View Legend26. Flame detection electrode.32. Condensate 'S' trap.35. User control.36. Primary controls (PCB).39. Mains switch.44. Piping frame.51. Mains connector.53. Turret gasket.57. CH stub pipe.59. Flow restrictor.60. DHW inlet/outlet pipe.61. Pressure relief valve.62. Expansion vessel.63. Expansion vessel pipe.64. Pressure gauge.65. DHW thermistor.66. Diverter valve head.67. Diverter valve.68. Diverter valve manifold.69. Pump.70. Pump manifold.71. DHW plate heat exchanger.75. Control box clamp.