Ideal Boilers i-mini 24 Installation And Servicing

Contents

6i-mini - Installation and ServicinggeneralINTRODUCTIONThe i-mini 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)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)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 exerciseThe 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.Data plateThe boiler model and serial number can be located on the bottom of theboiler casing, shown in Frame 1 - Water & Gas Connection Diagram.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 knob is in the ‘ON’ period.When there is a demand for CH, the heating system is supplied atthe selected temperature of between 45 o C and 80 o 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 o C temperature rise.30 12.4 l/min at 35 o C temperature rise.The 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 o C 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)• Flue Extension Ducts (2000mm long)• Flue Extension Ducts (500mm long)24-up to 9m30-up to 8m• 90 o Elbow Kit (maximum per installation).24-upto 6 elbows30-upto 6 elbows• 45 o Elbow Kit (maximum per installation).24-upto 6 elbows30-upto 6 elbows• Telescopic B Pack• Roof Flue Kit (to a maximum of 7.5m)• Flue Finishing Kit• High Level Flue Outlet Kit• Balcony Flue Kit• Soffit Flue Kit• Adjustable Flue Support Bracket• Flue Deflector Kit• Raised Horizontal Flue Outlet Kit• Concentric Flue screw Retaining Kit• Weather Collar• Stand-Off Kit• Condensate Pump Kit• DHW Expansion Vessel Kit• Weather Compensation Kit• PRV Wall Outlet Kit• Security Bracket Kit• Pressure Gauge Extension Kit• Mechanical Timer (24hr) Kit• RF Mechanical Programmable Room Thermostat (24hr) Kit