Ideal Boilers mini HE C24 Installation And Servicing

SERVICINGmini HE --- Installation & Servicing 3544 OVERHEAT THERMOSTATREPLACEMENT1 Remove outer and inner casing (refer to frame 34).2 Remove the screws A and the plate B.AB3 Disconnect the wiring C .4 Remove the spring D which holds the overheat thermostaton the pipe of the primary heat exchanger and remove it.CD5 Re---assemble in reverse order.6 Apply an adequate quantity of heat conductingcompound between the pipe and the thermostat.45 FLUE THERMOSTAT REPLACEMENT1 Remove outer and inner casing (refer to frame 34).2 Disconnect the wires from the flue thermostat.3 Unscrew and remove the thermostat probe A from therecuperator.4 Remove the protective cap B and unscrew the screws Cwhich hold the flue thermostat to the frame.5 Remove the flue thermostat.6 Assemble the flue thermostat carrying out the removaloperations in reverse sequence.BA C46 THERMISTOR REPLACEMENT1 Disconnect the electrical supply.2 Remove the front and right hand side casing panels (referto frame 34).Removal of CH thermistor3 To remove the CH thermistor close off the isolating cocksof the CH circuit at the bottom of the boiler.4 Release system pressure by opening the main circuitdrainage cock.Do not release CH pressure using the pressure reliefvalve. It may cause debris within the system to foulthe valve.Removal of DHW thermistor3 To remove the DHW thermistor close off the isolating cockof the DHW circuit at the bottom of the boiler.4 Empty the DHW circuit.5 Disconnect the leads from the thermistors to be replacedand unscrew it .6 Screw in the new sensor, using a new gasket, reconnectand re---assemble in reverse order.CH thermistor DHW thermistorDrainage cockSERVICING