Ideal Boilers i 24 Installation & Servicing Instructions Manual

Contents

Ideal Boilers i 24 Installation & Servicing Instructions Manual Manual pdf 26 page image

26INSTALLATIONi combi - Installation and ServicingSafetyDrainValveBlackHandle YellowHandleBlackHandleBlueHandleCH FlowDHW OutletGas SupplyCH ReturnDHW InletGas PressureTest Point23 CONNECTIONs & FILLINgNOTEs.Ensure all boss blanking plugs are removed before connecting hardware. Each valve must be fitted to the correct boss as shownin the picture.Ensure each union is fitted with fibre seals provided.Do not subject any of the isolating valves to heat as the seals may be damaged.WaTER CONNECTIONs Ch1. Connect the CH flow service valve provided in thehardware pack to the threaded boss connectionprovided at the lower rear of the boiler.2. Connect the CH return valve (black handle).3. If connecting the boiler to heating loads in excess of60,000 Btu/h (17.5kW), connecting flow and returnheating systems pipework must be sized in 28mmdiameter at the point of pipe connection to theboiler tails. Use 22mm x 28mm pipe adaptors asappropriate.gas CONNECTIONIMpORTaNT. The gas service cock is sealed with a non-metallic blue fibre washer, which must not be overheated whenmaking capillary connections. Refer to Frame 1 for details of theposition of the gas connection.For additional gas supply information refer to “Gas Supply” onpage 8.saFETy VaLVE DRaINThe safety valve connection, located at the bottom right-handside of the boiler, comprises a 15mm diameter stub pipe.N.b. Use a compression fitting when connecting to the safetyvalve drain pipe to facilitate replacement of the safety valve ifrequired.The discharge pipe should be positioned so that the dischargeof water or steam cannot create a hazard to the occupants ofthe premises or damage the electrical components and wiring.FILLINgIMpORTaNT - when filling:a. Ensure the dust cap on air ventlocated at the rear of the pumpchamber is slightly unscrewed.b. When filling, there may be a slightwater leak from the air vent thereforeelectrical connections should beprotected.Ch -1. Ensure that the Ch isolatinghandles are open.2. Fill and vent the system. Refer toFrame 2 for setting pressure.DhW -1. Fully open all DHW taps and ensurethat water flows freely from the.2. Close all taps.Dust CapWaTER CONNECTIONs DhW1. Fit the DHW inlet service valve (blue handle) to thethreaded boss connection ensuring the seal provided iscorrectly located.2. Fit the DHW outlet pipe tail to DHW outlet connection,ensuring the seal provided is correctly located.note.The DHW flow rate is automatically regulated to a max:24 = 9.9 l/m (2.2 gpm)30 = 12.4 l/m (2.8 gpm)35 = 14.5 l/m (3.2 gpm)Note that all isolationhandles are shown in theopen postion.Pressure Relief ValveDrain Connection15mm elbowor fittings(not supplied)Pressure Relief ValveDrain PipeINsTaLLaTION