Ideal Boilers i 24 Installation & Servicing Instructions Manual

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Ideal Boilers i 24 Installation & Servicing Instructions Manual Manual pdf 6 page image

6i combi - Installation and ServicinggeneralINTRODUCTIONThe i combi range of boilers are wall mounted, full sequence,automatic spark ignition, low water content, fanned flue, highefficiency, condensing, combination gas boilers.Note. Due to the high efficiency of the boiler a plume of watervapour will form at the terminal during operation.Central heating (CH) output is fully modulating with a range of:24 4.8 to 24.2kW (16,500 to 82,600 Btu/h)30 6.1 to 24.2kW (20,700 to 82,600 Btu/h)35 7.1 to 24.2kW (24,100 to 82,600 Btu/h)Instantaneous domestic hot water (DHW) output is also fullymodulating with a maximum of :24 24.2kW (82,600 Btu/h)30 30.3kW (103,300 Btu/h)35 35.3kW (120,500 Btu/h)The boiler is supplied fully assembled with DHW plate heatexchanger, diverter valve, circulating pump, pressure gauge,safety valve and CH expansion vessel.Variable CH and DHW temperature controls are fitted on the usercontrol and the boiler features a DHW preheat facility.The boiler includes as standard:- Automatic bypass- Boiler frost protection- Daily pump and diverter valve exercise- Mechanical 24hr timerThe boiler casing is of white painted mild steel.The boiler temperature controls are visible located in the controlpanel on the front of the boiler.The heat exchanger is manufactured from cast aluminium.The boiler is suitable for connection to fully pumped, sealedheating systems ONLY. Adequate arrangements for completelydraining the system by provision of drain cocks MUST be providedin the installation pipework.Pipework from the boiler is routed downwards.OpERaTIONWith no demand for CH, the boiler fires only when DHW is drawnoff, or periodically for a few seconds without any DHW draw-off, inorder to maintain the DHW calorifier in a heated condition. Thisonly occurs if pre-heat on.When there is a demand for CH, the heating system is supplied atthe selected temperature of between 45 oC and 80o C, until DHWis drawn off. The full output from the boiler is then directed viathe diverter valve to the plate heat exchanger to supply a nominalDHW draw-off of24 9.9 l/min at 35 oC temperature rise.30 12.4 l/min at 35 o C temperature rise35 14.5 l/min at 35 o C temperature riseThe DHW draw off rate specified above is the nominal that theboiler flow regulator will give. Due to system variations andseasonal temperature fluctuations DHW flow rates/temperaturerise will vary, requiring adjustment at the draw off tap.At low DHW draw-off rate the maximum temperature is limited to64 oC by the modulating gas control.The boiler features a comprehensive diagnostic system whichgives detailed information on the boiler status when operating,and performance of key components to aid commissioning andfault finding.saFE haNDLINgThis boiler may require 2 or more operatives to move it to itsinstallation site, remove it from its packaging base and duringmovement into its installation location. Manoeuvring the boilermay include the use of a sack truck and involve lifting, pushing andpulling.Caution should be exercised during these operations.Operatives should be knowledgeable in handling techniques whenperforming these tasks and the following precautions should beconsidered:• Grip the boiler at the base.• Be physically capable.• Use personal protective equipment as appropriate, e.g. gloves,safety footwear.During all manoeuvres and handling actions, every attempt shouldbe made to ensure the following unless unavoidable and/or theweight is light.• Keep back straight.• Avoid twisting at the waist.• Avoid upper body/top heavy bending.• Always grip with the palm of the hand.• Use designated hand holds.• Keep load as close to the body as possible.• Always use assistance if required.OpTIONaL ExTRa KITs• horizontal Flue Terminal - (1000mm long)• horizontal Flue Terminal - (600mm long)• Flue Extension Ducts (1000mm long)24-up to 9m30-up to 8m35-up to 6m• 90 o Elbow Kit (maximum per installation)24-upto 6 elbows30-upto 6 elbows35-upto 4 elbows• 45 o Elbow Kit (maximum per installation)24-upto 6 elbows30-upto 6 elbows35-upto 4 elbows• Telescopic B Pack• Raised Horizontal Flue Outlet Kit• High Level Flue Outlet Kit• Flue Deflector Kit• Balcony Flue Kit• Roof Flue Kit (to a maximum of 7.5m)• Concentric Flue Screw Retaining Kit• Weather Collar• Adjustable Flue Support Bracket• Flue Finishing Kit• Stand-Off Kit• Weather Compensation Kit• Valve Cover Kit• Condensate Pump Kit• DHW Expansion Vessel Kit• RF Mechanical Programmable Room Thermostat Kit