Ideal Boilers minimiser SE 30 Installation And Servicing Manual

Also see for minimiser SE 30: Householders guide

28 Minimiser SE - InstallationINSTALLATION43 BOILER WATER CONNECTIONSThe boiler flow and return pipes are supplied fitted to the boiler and ready for top connection.INSTALLATIONNote. For boiler sizes SE30 to SE60 use the 28mm x 22mm connectorssupplied in the hardware pack, to reduce the boiler flow and return pipes to22mm.TOP CONNECTIONConnect the system pipework to the boiler flow and return pipes.BOTTOM CONNECTION1. Remove the retaining pin and withdraw the thermostat phial from thepocket.2. Disconnect the electrical leads from the overheat thermostat.3. Undo the flow and return pipe unions and withdraw the pipes from theboiler.4. Cut off the spun ends of the pipes and connect pipes of suitable length toterminate 50mm (2") outside the bottom of the boiler casing.5. Refit the pipe assemblies to the flow and return bosses, ensuring that thegaskets are in position.Note. Fit the return pipe assembly first.6. Fit an automatic air vent to the top of the return pipe assembly and amanual air vent to the top of the flow pipe assembly (where pressures mayat times be negative). Alternatively, a combined feed and vent pipe may beconnected to the top of the flow pipe assembly.7. Connect the system pipework to the flow and return pipes at the bottom ofthe boiler.8. Reconnect the overheat thermostat electrical leads and re-insert the boilerthermostat phial into the pocket, retaining it with the split pin.(Pipework shown as a dottedline is not supplied)34612Centre line of boiler145 mmCondensatedrain42 mm(72 mm with stand-offbracket)Note. The drain connection is located at the rear of the controlscompartment.The condensate drain provided on the boiler must beconnected to a drainage point, preferably within the building.Ensure that the condensate siphon is full of water beforecommissioning the boiler - refer to Frame 20 or 28.Refer also to the British Gas document: 'Guidance Notes forthe Installation of Domestic Gas Condensing Boilers' (1989)44 CONDENSATE DRAIN A 'tun dish' arrangement between the boiler and the drainmay be fitted.The routing of the drain must be made to allow a minimumfall of 1 in 20 away from the boiler, throughout its length.The drainage pipework must be arranged so thatobstruction (e.g. through freezing) of external drainage pipedoes not give rise to spillage within the dwelling.IMPORTANT. Any external runs must be insulated.Excessive external pipe runs should be avoided in order toprevent possible freezing.All pipework and fittings in the condensate drain systemmust be made of plastic. No other materials may be used.The drain outlet on the boiler is standard 22mm overflowpipe. This size must not be reduced in any part of itslength.In order to defer the onset of freezing of the condensatedrain when the pipe is run externally the pipe should berun as far as possible within the building.The boiler condensate drain connection is suitable forBartol 'Polypipe' tubing. An adaptor is supplied to allow theuse of Marley 'Terrain' tubing, which is slightly larger. Thisadaptor should be sealed to the Marley 'Terrain' tubing andto the boiler condensate drain, using a suitable plastictube adhesive.