Ideal Boilers Mexico Super RS485 Installation And Servicing

7Mexico Super RS485 - RS4125 - Installation & ServicingGENERALMex 1920RS 4100RS 485RS 4125RS 4100 & RS 4125Dotted lines indicateflow rates equivalentto a temperature riseof 11 oC (20 o F)Water Flow Rate and Pressure Loss2. If the boiler is to be installed in a cupboard or compartment,permanent air vents are required (for cooling purposes) inthe cupboard/compartment, at both high and low levels. Theair vents must either communicate with room/internal space,or be direct to outside air. The minimum effective areas of thepermanent air vents, required in the cupboard/compartment,are specified in Table 4 and are related to maximum ratedheat input.3. Both air vents MUST communicate with the same room orinternal space or MUST be on the same wall to outside air.4. In siting the air vents care must be taken to avoid the freezingof pipework.WATER CIRCULATION SYSTEMThe boiler must NOT be used for direct hot water supply. Theboiler is suitable for connection to pumped open vent centralheating systems, pumped central heating combined withpumped or gravity indirect domestic hot water supply systems.The boiler is NOT suitable for gravity heating systems. Thehydraulic resistance of the boilers at maximum output with 11∫C(20∫F) temperature differentials are shown in the graph below.The central heating system should be in accordance withBS. 6798 and, in addition, for smallbore and microboresystems, BS. 5449:1.The domestic hot water system, if applicable, should be inaccordance with the relevant recommendations of BS. 5546.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.IMPORTANTA minimum length of 2 metres of copper pipe MUST be fitted toboth flow and return connections from the boiler beforeconnection to 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 boilerand hot water storage vessel. They should be at least 1/2" BSPnominal size 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.BOILER CONTROL INTERLOCKSCaradon Ideal Limited recommend that heating systems utilisingfull thermostatic radiator valve control of temperature in individualrooms should also be fitted with a room thermostat controlling thetemperature in a space served by radiators not fitted with such avalve as stated in BS. 5449.Central heating systems controls should be installed to ensure theboiler is switched off when there is no demand for heating or hot water.When thermostatic radiator valves are used, the space heatingtemperature control over a living / dining area or hallway having aheating requirement of at least 10% of the boiler heat output shouldbe achieved using a room thermostat, whilst other rooms areindividually controlled by thermostatic radiator valves. However, ifthe system employs thermostatic radiator valves on all radiators,or two port valves without end switches, then a bypass circuit mustbe fitted with an automatic bypass valve to ensure a flow of watershould all valves be in the closed 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 completeisolation of the electrical supply - such as a double pole switch,having a 3mm (1/8") contact separation in both poles, or a plugand socket serving 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.Boiler Air from room/internal Air direct fromspace cm 2 (in.2) outside cm2 (in.2)High level Low level High level Low levelRS485 275 (43) 275 (43) 137 (21) 137 (21)RS4100 438 (68) 438 (68) 219 (34) 219 (34)RS4125 438 (68) 438 (68) 219 (34) 219 (34)Table 4 - High and low vent areas