Ideal Boilers Procombi Exclusive 24 Installation & Servicing Instructions Manual

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Ideal Boilers Procombi Exclusive 24 Installation & Servicing Instructions Manual Manual pdf 67 page image

3Procombi Exclusive - User’sTO sTaRT ThE bOILERStart the boiler as follows:1. Check that the electricity supply to boiler is off.2. Set the mode knob (A) to ‘off’.3. Set the Domestic Hot Water temperature knob (B) and CentralHeating temperature knob (C) to ‘max’.4. Ensure that all hot water taps are turned off.5. Switch on electricity to the boiler and check that all externalcontrols, e.g. timer and room thermostat, are on.7. Set the mode knob (A) to ‘ ’ (winter).The boiler will commence ignition sequence, supplying heat to thecentral heating, if required.Note. In normal operation the boiler status display (D) will show codes:Standby - no demand for heat.Central Heating being suppliedDomestic hot water being suppliedDomestic hot water preheatBoiler frost protection - boiler will fire if temperature is below 5ºC.During normal operation the burner on indicator (E) will remainilluminated when the burner is lit.Note: If the boiler fails to light after five attempts the fault codewill be displayed (refer to Fault Code page).OpERaTION MODEsWinter Conditions - (Central Heating and Domestic Hot Water required)Set the mode knob (A) ‘ ’ (winter).The boiler will fire and supply heat to the radiators but will givepriority to domestic hot water on demand.The domestic hot water preheat will operate if preheat is enabled(shown by indicator light (F)).summer Conditions - (Domestic Hot Water only required)Set the mode knob (A) to ‘ ’ (summer).Set the central heating demand on the external controls to OFF.The domestic hot water preheat will operate if preheat is enabled(shown by indicator light (F)).boiler OffSet the mode knob (A) to ‘off’. The boiler mains power supplymust be left on to enable frost protection (see Frost Protection).pREhEaT - DOMEsTIC hOT WaTERThe domestic hot water heat exchanger within the boiler can bekept preheated to provide faster delivery of hot water at the tap.Preheat is enabled when the preheat indicator (F) is lit. To switchpreheat on or off, move the domestic hot water preheat knob (B)full clockwise and then return it to the required domestic hot watertemperature setting.The boiler will operate periodically for a few seconds to maintainthe domestic hot water heat exchanger in a preheated condition.The average time period between operation is 90 minutes. Thismay vary considerably due to the surrounding ambient temperatureof the boiler. The boiler will operate whenever there is a demandfor domestic hot water.If standard hot water delivery is satisfactory turn the knob (A) to‘preheat off’.CONTROL OF WaTER TEMpERaTUREDomestic hot WaterThe domestic hot water temperature is limited by the boilercontrols to a maximum temperature of 64 ºC, adjustable via thedomestic hot water temperature knob (B).Approximate temperatures for domestic hot water:Knob setting hot Water Temperature (approx.)Minimum 40ºC (104ºF)Maximum 64ºC (147ºF)Due to system variations and seasonal temperature fluctuationsdomestic hot water flow rates/temperature rise will vary, requiringadjustment at the tap : the lower the flow rate the higher thetemperature, and vice versa.Central heatingThe boiler controls the central heating radiator temperature to amaximum of 80o C, adjustable via the central heating temperatureknob (C).Approximate temperatures for central heating:Knob setting Central heating Radiator Temperature (approx.)Minimum 45ºC (113ºF)Maximum 80ºC (176ºF)For economy setting ‘ ’ refer to Efficient Heating SystemOperation.2. bOILER OpERaTIONLegendA. Mode KnobB. Domestic Hot Water / Preheat KnobC. Central Heating Temperature KnobD. Boiler StatusE. Burner ‘on’ IndicatorF. Domestic Hot Water Preheat on / off indicatorG. TimerH. Pressure GaugeJ.K.Condensate DrainCentral Heating Economy SettingA B C DGHJEFK19202122232412345678910111213141516171800Ipreheatpreheatmin minmaxmoderesetoff status burnermaxe30Exclusive