Ideal Boilers Optia HE 9 Installation And Servicing Instructions

26 Optia HE - Installation & ServicingINSTALLATION37 WATER CONNECTIONS1. Remove the plastic plugs from the flow andreturn pipes.2. Make all water connections and check forwater soundness.36 GAS CONNECTIONRefer to 'Gas Supply ', page 8.Refer to Frame 2 for gas inlet service dimensions.A minimum pressure of 20 mbar MUST be available at the boiler inletwith the boiler operating. The main gas cock is on the left hand side ofthe gas control valve, as shown. To facilitate connection the gas cockmay be removed from the gas control valve.38 CONDENSATE DRAINRefer also to the British Gas document: 'Guidance Notes for theInstallation of Domestic Gas Condensing Boilers' (1989).The boiler comes with a built in condensate siphon trap. The boilercondensate drain must be connected to a drainage point, preferablywithin the building. This condensate drainage should be run instandard 21.5mm overflow pipe. Connection to the boiler is madeby fitting the siphon nut and sealing washer to the threaded siphonoutlet.Ensure that the condensate siphon is full of water beforecommissioning the boiler. Refer to Frames 19 and 27.The routing of the drain must be made to allow a minimum fall of 1in 20 away from the boiler, throughout its length.The drainage pipework must be arranged so that obstruction (e.g.through freezing) of external drainage pipes does not give rise tospillage within the dwelling.IMPORTANT.If excessive external pipework cannot be avoided a condensateremoval pump (available as an option) and insulation arerecommended to prevent possible freezing.All pipework and fittings in the condensate drain system must bemade of plastic. No other materials may be used.The drain outlet on the boiler is standard 21.5mm overflow pipe.This size must not be reduced in any part of its length.cla7871Front View Side View70mm (2 3 /4 ")38mm (1 1 /2 ")Condensatesiphon drainBOILERcla7771 75mm trapSink constitutesair breakDRAINGround LevelOpen end of pipedirect into gulleybelow grating butabove water levelcla9252 75mm trapDRAINSinkGround LevelOpen end of pipedirect into gulleybelow grating butabove water levelBOILERAir Break1. INTERNAL TO SINK WASTEUPSTREAM OF SINK WASTETRAP2. INTERNAL TO SINK WASTEDOWNSTREAM OF SINKWASTE TRAP (PREFERREDMETHOD)Note. ALL EXTERNAL PIPE RUNS MUST BE INSULATED OR UPSIZED TO 32MM - MAXIMUM LENGTH 3M EXTERNAL39 CONDENSATE PIPE TERMINATION CONFIGURATIONScontinued . . . .INSTALLATION