7Mexico Super FF440 - FF480 - Installation & ServicingGENERALWater Flow Rate and Pressure LossFLOW RATE (gals/hr)PRESSURE LOSS (mbar)FLOW RATE (l/min)PRESSURE LOSS (ft.water)140100602010 20 30 40 50MEX 18751.02.3.04.05.0200 400 600470FF & 480FF440FF460FF470FF480FF450FF & 460FF440FF450FFDotted lines indicate flow rates equivalent to atemperature rise of 11 OC (20 OF)Copper tubing to BS. 2871:1 is recommended for water carryingpipework.The hot water storage cylinder MUST be of the indirect type andshould preferably be manufactured of copper.Single feed, indirect cylinders are not recommended and MUSTNOT be used on sealed systems.The hot water cylinder and ancillary pipework not forming part ofthe useful heating surface should be lagged to prevent heat lossand any possible freezing - particularly where pipes run throughroof spaces and ventilated underfloor spaces.IMPORTANT.A minimum length of 2 metres of copper pipe MUST be fitted toboth flow and return connections from the boiler before connectionto any plastic piping.The boiler must be vented. If venting cannot be done via a flowconnection a separate vent MUST be fitted by the installer.Draining taps MUST be located in accessible positions, whichpermit the draining of the whole system - including the boiler andhot water storage vessel. They should be at least 1/2" BSP nominalsize and be in accordance with BS. 2879.If required, a drain tap (not supplied) may be fitted to an unusedbottom (1" BSP) tapping on the front of the boiler.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 0952Notes.1. It is most important that the correct concentration of thewater treatment products is maintained in accordance withthe manufacturers' instructions.2. If the boiler is installed in an existing system any unsuitableadditives MUST be removed by thorough cleansing.BS7593:1992 details the steps necessary to clean adomestic heating system.3. In hard water areas, treatment to prevent limescale may benecessary - however the use of artificially softened water isNOT permitted.4. Under no circumstances should the boiler be fired beforethe system has been thoroughly flushed.BOILER CONTROL INTERLOCKSCaradon Ideal Limited recommend that heating systemsutilising full thermostatic radiator valve control of temperature inindividual rooms should also be fitted with a room thermostatcontrolling the temperature in a space served by radiators notfitted with such a valve as stated in BS. 5449.Central heating systems controls should be installed to ensurethe boiler is switched off when there is no demand for heatingor hot water.When thermostatic radiator valves are used, the space heatingtemperature control over a living / dining area or hallway havinga heating requirement of at least 10% of the boiler heat outputshould be achieved using a room thermostat, whilst otherrooms are individually controlled by thermostatic radiatorvalves. However, if the system employs thermostatic radiatorvalves on all radiators, or two port valves without end switches,then a bypass circuit must be fitted with an automatic bypassvalve to ensure a flow of water should all valves be in theclosed position.ELECTRICAL SUPPLYWARNING. The appliance MUST be efficiently earthed.Wiring external to the appliance MUST be in accordance with thecurrent I.E.E. (BS 7671) Wiring Regulations and any localregulations which apply. For Ireland reference should be madeto the current ETCI rules for electrical installations.The boiler is supplied for 230 V ~ 50 Hz single phase. The fuserating is 3A.Connection must be made in a way that allows complete isolationof the electrical supply - such as a double pole switch, having a3mm ( 1/8 ") contact separation in both poles, or a plug and socketserving only the boiler and system controls.The means of isolation must be accessible to the user afterinstallation.For bathroom installations the point of connection to the mainsmust be situated outside the bathroom.WATER TREATMENTThese boilers incorporate a cast iron heat exchanger.IMPORTANT. The application of any other treatment to thisproduct may render the guarantee of Caradon Ideal LimitedINVALID.Caradon Ideal Limited recommend Water Treatment inaccordance with the Benchmark Guidance Notes on WaterTreatment in Central Heating Systems.Caradon Ideal Limited recommend the use of Fernox, GE BetzSentinel or Salamander water treatment products, which mustbe used on accordance with the manufacturers instructions.For further information contact: