Ideal Boilers LOGIC Combi ES24 User Manual

Contents

3Logic Combi ES - User’sLegenda. BlankB. DHW Temperature ControlC. CH Temperature Control1 BoiLEr ConTroLsoperationWinter conditions - i.e. Ch and DhW required.Ensure the mode knob control (D) is set to winter ( )The boiler will fire and supply heat to the radiators but will givepriority to DHW on demand.summer conditions - i.e. DhW only required.Set the mode knob control to Summer ( ).Set the CH external controls to OFF.The boiler will fire whenever there is a demand for DHW.note. The pump will operate briefly as a self-check once every 24hours, regardless of system demand.Control of water temperatureDomestic hot WaterThe DHW temperature is limited by the boiler controls to64 o C maximum at low draw-off rate, adjustable via the DHWtemperature control (B).Due to system variations and seasonal temperature fluctuationsDHW flow rates/temperature rise will vary, requiring adjustmentat the draw off tap : the lower the rate the higher the temperature,and vice versa.Central heatingThe boiler controls the central heating radiator temperature to amaximum of 80 o C, adjustable via the CH temperature control (C).The Logic Combi ES is a high efficiency combination boiler whichis most efficient when operating in condensing mode.The boiler will operate in this mode if the CH temperature control(C) is set to the ‘e’ position (economy mode). This control shouldbe set to maximum for very cold periodsTo shut down the boilerSet the mode knob control to OFFTo relight the boilerRepeat the procedure detailed in ‘To light the boiler’.Frost protectionIf no system frost protection is provided and frost is likely duringa short absence from home, leave the heating controls (if fitted)at a reduced temperature setting. For longer periods, the entiresystem should be drained.If the system includes a frost thermostat then, during coldweather, the boiler should be turned OFF at the time switch (iffitted) ONLY. The mains supply should be left switched ON, withthe boiler thermostat left in the normal running position.Boiler overheat ProtectionThe boiler controls will shut down the boiler in the event ofoverheating. Should this occur, a fault code will be displayed.Refer to fault chart.Flame FailureShould this occur a fault code will be displayed. Refer to faultchart.GHA B E F C DJApprox. flow temperatures for the boiler thermostat settings are:Knob setting Flow TemperatureMinimum 40o C (104oF)Maximum 64o C (147oF)D. Mode ControlE. Boiler StatusF. Burner ‘on’ Indicatorg. Pressure Gaugeh. Condensate DrainJ. Economy Modecontinued . . . . . .