Ideal Boilers mini HE C24 Installation And Servicing

SERVICINGmini HE --- Installation & Servicing4261 PRIMARY HEAT EXCHANGERREPLACEMENT1 Disconnect the electrical supply.2 Remove outer and inner casing as explained in frame 34.3 Close off the isolating cocks of the CH circuit at thebottom of the boiler.4 Release system pressure by opening the main circuitdrainage cock. Do not release CH pressure using thepressure relief valve. It may cause debris within thesystem to foul the valve.5 Remove the combustion chamber panel A by unscrewingthe screws B and removing the fan holder bracket C.6 Remove the screw D and the plate E.7 Loosen the connection F and slightly move the pipe Gupwards.8 Remove the clip H and the safety thermostat I. It is notnecessary to disconnect it from the wiring.9 Completely unscrew the connection J and move the pipeK downwards freeing it from the heat exchangerconnection.10 Remove the clip L.11 Move the pipe M upwards freeing it from the connectionand rotate towards right.12 Remove the heat exchanger by sliding it forwards.13 Re---assemble in reverse order.Fit the clip H with the arrow pointing upwards asillustrated in the drawing.Do not force the connection F when tighting it.DLBAEBCFHIMJKG62 RECUPERATOR REPLACEMENT1 Disconnect the electrical supply.2 Remove outer and inner casing as explained in frame 34.3 Close off the isolating cocks of the CH circuit at thebottom 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.5 Remove the fan A (see frame 51) and the air pressureswitch B (see frame 53).6 Remove the flue thermostat C (see frame 45)7 Completely loosen the connection D and slightly move thepipe E upwards.8 Remove the clip F and move the pipe G downwardsfreeing it from the connection, then turn it towards right.9 Using pliers, remove the spring H moving it downwardsand disconnect the rubber pipe I.10 Remove the bracket J by unscrewing the screws that holdit on the frame.11 Rotate the recuperator K as indicated by the arrow andremove it towards the front of the boiler.12 Remove the clip L and the pipe E.13 Reassemble the recuperator carrying out the removaloperations in reverse order.SERVICING