Ideal Boilers Maximiser SE 42 Installation & Servicing Instructions Manual

Ideal Boilers Maximiser SE 42 Installation & Servicing Instructions Manual Manual pdf 28 page image

35 replacement of components (REFER TO FRAME 43)Casing Door (refer to fig. 43.1, key 7)1. Open the casing door.2. Carefully continue to hinge the door outwards until thethree hinge points become disengaged from the maincasing. Remove the door.3. If necessary, replace the display panel (refer to fig.44.1,pos.12). Refit the door by positioning the hinge points intotheir sockets and carefully close the door to engage thehinges.Casing Display Panel (refer to fig. 43.1, key 6)1. Open the casing door.2. From the inside of the door unclip display panel from thetop and bottom clips nearest the door hinges and remove.3. Fit new display panel in reverse order.Casing Seal (refer to fig. 43.1, key 5)1. Disconnect the electricity supply.2. Remove the casing assembly and place on a safe workingsurface (refer to frame 8).3. Pull the old seal from the casing assembly and discard.4. Place the new seal in the groove of the casing and pressinto position taking care that the new seal is not stretchedor twisted.5. Refit the casing assembly to the boiler.Casing Clamp (refer to fig. 43.1, key 4)1. Carefully prize open the outer casing from the innercasing at both sides of the clamp.2. Push the clamp forwards to remove and discard.3. Fit the new clamp in reverse order.4. Refit the casing assembly to the boiler.Burner Thermostat (refer to fig. 43.9, key 56)1. Disconnect the electricity supply.2. Remove the casing assembly and place safely to oneside.(refer to frame 8)3. Remove the wires from the two terminals on thethermostat.4. Unscrew the thermostat and discard.5. Refit the new thermostat and re-assemble in reverseorder.(polarity is not important)6. Check the operation of the boiler.Igniter (refer to fig. 43.4, key 35)1. Follow steps 1-2 of Burner Thermostat replacement.2. Remove the earth lead from the igniter tab.3. Remove the two off M6 nuts holding the cover plate.4. Remove the cover plate and gasket and place safely toone side.5. Remove igniter and discard.6. Fit new igniter and reassemble in reverse order.7. Check the operation of the boiler.Ionization Electrode (refer to fig. 43.4, key 36)1. Follow steps 1-4 of Igniter replacement2. Ensuring the Igniter remains in place, remove theIonization Electrode, disconnect it’s wiring at theconnector provided and discard.3. Reassemble in reverse order taking care not to damagethe Igniter.(Very fragile)4. Check the operation of the boiler.Fan (refer to fig. 43.6, key 63)1. Follow steps 1-2 of Burner Thermostat replacement.2. Swing the control panel away from the fan.3. Unplug the two electrical connectors from the front of thefan by squeezing the retainers and pulling forwards.4. If fitted, remove the retaining block from the top fittingpoint of the fan.5. Remove the air hose to the heat exchanger by pushing itupward to clear the fan body.6. Pull fan assembly forwards to clear the rear locationpoints, lower the fan body and push back to clear thefront fixing point.7. Remove the fan assembly and place to one side.8. Remove three off M6 bolts retaining the Fan Air Inlet Pipe;remove the pipe and bracket. Retain the sealing gasket.9. Fit the new fan and reassemble in reverse order.10.Check the operation of the boiler.Siphon (refer to fig. 33.4 and fig. 43.5, key 41)1. Follow steps 1-2 of Burner Thermostat replacement.2. Disconnect the condensate outlet pipe from the siphonlower connection.3. Disengage the top connection of the siphon from thelower access cover by pulling the siphon bodydownwards.4. Fit the new siphon, fill the siphon (see frame 27, para 4)and reassemble in reverse order.5. Check the operation of the boiler.Flow/Return/Safety Sensors(refer to fig. 43.3, key 25 and fig. 43.4, key 39)1. Follow steps 1-2 of Burner Thermostat replacement.2. Where possible isolate the boiler from the heating system.3. Drain the system water from the heat exchanger.4. Disconnect the sensor at the connector supplied.5. Unscrew the sensor from the heat exchanger and discard.6. Fit the new sensor ensuring the ‘O’ ring is correctly inplace and re-connect the wiring.(Note! The flow sensor is connected to the wiringhaving the red sleeve attached. If in doubt consult frame 22)7. Reassemble in reverse order.8. Refill the system and check the operation of the boiler.Pump (refer to fig. 43.8, key 89)1. Follow steps 1-3 of Sensor replacement.2. Disconnect the electrical leads from the pump.3. Undo both union connections on the pump and withdrawthe pump.4. Ensure the pipe sealing faces are clean of gasket material,fit the new pump and reassemble in reverse order usingnew gaskets.(provided)5. Refill the system and check the operation of the boiler.Air Purger Valve (refer to fig. 43.3, key 21)1. Follow steps 1-3 of Sensor replacement.2. Remove the plastic moulded cover from the top of theback panel.3. Unscrew and remove the valve retaining nut.4. With care, withdraw the valve assembly upward throughthe hole in the back panel.5. Reassemble in reverse order ensuring the ‘O’ ring seal isseated correctly on the valve assembly and the mouldedcover replaced in the back panel.6. Refill the system and check the operation of the boiler.27 Maximiser SE - Installation