Ideal Boilers Classic FF 330 Installation And Servicing

Ideal Boilers Classic FF 330 Installation And Servicing Manual pdf 29 page image

Classic FF - Installation & Servicing 29SERVICINGMAIN BURNERAfter any servicing, reference should be made to Table 2which quotes details of the rated output with the relatedburner setting pressure and the heat input. Any requiredadjustments should be made by using the pressureadjustment screw.Refer to 'initial Lighting', Frame 45.REPLACEMENT OF PARTS1. Refer to Frame 56.2. Remove the control box fixing screws.3. Swing the control box down into the servicing position.58 OVERHEAT THERMOSTAT REPLACEMENT56 GENERALWhen replacing any component:1. Isolate the electricity supply.2. Turn OFF the gas supply.3. Remove the boiler casing. Refer to Frame 50.IMPORTANT. When work is complete the casing mustbe correctly refitted, ensuring that a good seal is made.4. Pull off the electrical connections at the thermostat. Removethe backnut retaining the thermostat to the bracket. Withdrawthe thermostat phial from the heat exchanger pocket.5. Fit the new thermostat and reassemble in reverse order.6. Check the operation of the boiler.55 GAS PRESSURE ADJUSTMENTPILOTThe pilot is factory set to maximum and no furtheradjustment is possible. If, after removing and checking theinjector (as detailed in Frame 61) and ensuring that thereis an inlet pressure of 20 mbar available, the pilot does notlight then contact Caradon Ideal Limited.Relight in accordance with 'Initial Lighting', Frame 45.Note.In order to assist fault finding, the control box printedcircuit board is fitted with 2 indicator lights which represent thefollowing boiler conditions:Neon I3. Mains electricity ON.Neon SG1. Flashes to indicate ignition operation (stops afterdetection).The boiler MUST NOT be operated if the casing is not fitted.1. Refer to Frame 56.2. Unfasten the 2 nuts and washers holding thesightglass assembly to the casing front panel.3. When fixing the new assembly ensure that the partsare in the correct order. The frame must have thereturn edge at the bottom.4. Retighten the 2 nuts to ensure an airtight seal. DoNOT overtighten.6. Replace the boiler casing. Refer to Frame 54.57 SIGHTGLASS REPLACEMENTSERVICING