Halstead iHeat 25c User Instructions

Contents

Halstead iHeat 25c User Instructions Manual pdf 5 page image

55555© Halstead Boilers Ltd 20082.02.02.02.02.0 Getting startedGetting startedGetting startedGetting startedGetting started2.12.12.12.12.1 Before switching onBefore switching onBefore switching onBefore switching onBefore switching onBefore switching the appliance on please familiarise your-self with:● how to isolate the appliance from the gas, water, andelectricity supplies;● how to check and top-up – if necessary – the systemwater pressure;● the time clock or programmer;● any external thermostats and their functions;● the appliance controls.2.22.22.22.22.2 Appliance controls (see fig. 1)Appliance controls (see fig. 1)Appliance controls (see fig. 1)Appliance controls (see fig. 1)Appliance controls (see fig. 1)The appliance controls are situated on the lower front ofthe appliance. The appliance controls include:● pressure gauge;● appliance mode selector;● temperature selector;● 2-digit LED display;● burner ON mode (green);● fault indicator (red);● optional - integral time clock/programmer (if fitted).The pressure gauge shows the current pressure of yourheating system, the gauge should be set between 1 and 1.5BAR. When the appliance is operating the gauge may rise orfall slightly, this is quite normal. The minimum permissiblelevel for the safe and efficient operation of the appliance is0.5 BAR. Should the pressure fall below 0.5 BAR, the boilermay lockout.The appliance mode selector is used to switch the boiler tothe various operating modes:● OFF/RESET “ ”● DHW MODE ” ”● CH MODE “ ”● CH with PREHEATING MODE “ ”N ON ON ON ON O TTTTT EEEEEThe appliance frost protection is active in all of the abovemodes.The temperature selectorstemperature selectorstemperature selectorstemperature selectorstemperature selectors can be used to vary thetemperature of the water that circulates around yourradiators and the water that flows from your hot watertaps. The temperature range is adjustable between 40 o Cand 80 o C for the central heating, and between 35 o C and60 o C for the hot water. Moreover if floor heating mode isselected (by using the relative jumper), the temperaturerange for CH mode can be modified between 20°C and 45°C.The 2-digit2-digit2-digit2-digit2-digit LLLLLED diED diED diED diED displsplsplsplsplay noray noray noray noray normallymallymallymallymally shows the operatingtemperature of the appliance, however it can also displayadditional characters or flashing numbers to signify specificoperating modes or fault codes.When the status indicator (Green) is litstatus indicator (Green) is litstatus indicator (Green) is litstatus indicator (Green) is litstatus indicator (Green) is lit it indicatesthat the flame is present and the burner is ON.When the fault indicator (Red) is litfault indicator (Red) is litfault indicator (Red) is litfault indicator (Red) is litfault indicator (Red) is lit it indicates thatthe appliance has identified a possible fault and performeda safety lockout.The integral time clock (when fitted)integral time clock (when fitted)integral time clock (when fitted)integral time clock (when fitted)integral time clock (when fitted) can be used toswitch the heating on and off at pre-determined intervals.The integral time clock or programmer (when fitted)integral time clock or programmer (when fitted)integral time clock or programmer (when fitted)integral time clock or programmer (when fitted)integral time clock or programmer (when fitted)can be used to switch the heating and/or hot water on andoff at pre-determined intervals.2.32.32.32.32.3 Lighting the boilerLighting the boilerLighting the boilerLighting the boilerLighting the boilerEnsure the gas and electrical supply to the boiler areEnsure the gas and electrical supply to the boiler areEnsure the gas and electrical supply to the boiler areEnsure the gas and electrical supply to the boiler areEnsure the gas and electrical supply to the boiler areturned on.turned on.turned on.turned on.turned on.Turn the mode selector switch to the ONONONONON position. Whenthere is a request for heating or hot water via the time clockor programmer, the boiler will begin an ignition sequence.When the appliance reaches the set temperature, the burnerwill go off for a minimum period of approximately 3 minutes.When the programmer/time clock or external thermostatsheating request has been satisfied, the appliance will switchoff automatically.2.42.42.42.42.4 Adjusting the heating temperatureAdjusting the heating temperatureAdjusting the heating temperatureAdjusting the heating temperatureAdjusting the heating temperatureRotate the temperature selector – clockwise to increase,counter-clockwise to decrease – to the desired temperaturesetting. The temperature can be set from a minimum of 40 O Cto a maximum of 80 O C (if standard CH mode is selected).2.52.52.52.52.5 Adjusting the hot water temperatureAdjusting the hot water temperatureAdjusting the hot water temperatureAdjusting the hot water temperatureAdjusting the hot water temperatureRotate the temperature selector – clockwise to increase,counter-clockwise to decrease – to the desired temperaturesetting. The temperature can be set from a minimum of 35 O Cto a maximum of 60O C. If the temperature at the outlet is stillnot sufficiently hot enough, it may be necessary to reducethe flow of water at the hot water outlet (tap).N ON ON ON ON O TTTTT EEEEEIf the appliance fails to ignite during the ignition sequence,it will enter a lockout condition. Should this occur, pleaseallow a period of at least two minutes before re-setting theappliance.

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