Ideal Boilers mini HE C24 Installation And Servicing

INSTALLATIONmini HE --- Installation & Servicing2020 CONDENSATE DRAINRefer also to the British Gas document: “Guidance Notesfor the installation of Domestic Gas Condensing Boilers”(1989).The condensate drain provided on the boiler must beconnected to a drainage point, preferably within the building.The boiler includes a trap that prevents combustion productsentering the drain. However an additional trap with a seal of atleast 75 mm and an air break between the traps is required ifthe condensate drain pipe is connected to sanitary pipework.Condensate drainAdditional trapThe length of the condensate pipe should be kept atminimum and must be arranged so that obstruction (e.g.through freezing) of external drainage pipework does not giverise to spillage within the dwelling.If a part of the drainpipe runs externally this part should bekept as short as possible and protected to reduce the risk offreezing.IMPORTANTIf excessive external pipework cannot be avoided anadditional condensate removal pump (available as anoption) and insulation are recommended to prevent possiblefreezing.The drain outlet on the boiler is a 25 mm o.d. plastic pipe.This size must not be reduced below 21.5mm o.d. (standardoverflow pipe) in any part of its length.All pipework and fittings in the condensate drain system mustbe made of plastic. No other materials may be used.To avoid condensate being trapped:--- the drainpipe should be run with a fall of at least 2.5° (45mm/m) away from the boiler;--- the number of bends and joints should be kept atminimum;--- the drainpipe should be adequately fixed to pevent pipesagging.21 ELECTRICAL CONNECTIONSWarning. This appliance MUST be efficiently earthedA mains supply of 230 V ~ 50 Hz is required.Mains wiring should be 3 core PVC insulated flexible cordNOT LESS than 0.75 mm2 (24 x 0.2mm) and to BS. 6500,Table 16. (0.5mm2 flex is not acceptable --- for mechanical,not electrical reasons.)Mains wiring external to the boiler MUST be in accordancewith the current I.E.E. (BS7671) Wiring Regulations and anylocal regulations.For Ireland reference should be made to the current ETCIrules for electrical installations.The supply connection is intended to be made via a doublepole switch having a 3 mm (1/8”) contact separation in bothpoles, serving only the boiler and system controls. A 3 pinUNSWITCHED socket may, alternatively, be used.The fuse rating should be 3 A.For external controls wiring see frame 25.Note: the switch contacts of any external programmer,room or frost thermostat must be volt free.Connecting a switched live feed to external controlsterminal block may be dangerous and will result inserious damage to the boiler.INSTALLATION