Infinity 890 HDBF, Инструкция для пользователя, установка и обслуживание

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Issue No 2
890 HD BF MAINTENANCE INSTRUCTIONS
Replacement of Gas Control
1. Remove the inner front fascia.
2. Slacken the lower retaining bracket but do not remove it completely. Remove the 3 off glass
retaining brackets positioned on both sides and top of the glass panel and remove the glass panel.
3. Remove all shapes, vermiculite, burner front cover plate and the burner.
4. Remove the fixing screws from the lower inspection plate and remove.
5. Shut off restrictor. Break the 8mm compression joint on valve inlet and remove the inlet pipe.
6. Remove the 4 fixing screws from the injector cover plate.
7. Disconnect and remove the pilot bracket from the pilot feed pipe and thermocouple.
8. Remove the two fixing nuts fixing the burner sump to the firebox base. Lift the complete burner sump
assembly out of the firebox.
9. With the sump assembly removed. Disconnect the Valve Motor wire from the E.D.B.
10. Disconnect all the pipes and thermocouple from the Gas Valve.
11. Change, service or replace the valve and re-assemble in reverse order. When replacing the gas
valve the low rate will need to be set.
12. Re-assemble the complete tray into the fire in reverse order and re-connect all parts.
13. Turn on the Gas supply, check for soundness and re-commission.
Replacement of Injector
1. Repeat operations 1-4 for removal of gas control.
2. Remove the injector retaining nut (14mm) and the injector support bracket to enable access to the
injector nut (16mm)
3. Clean or replace injector and replace in reverse order, ensuring that the seal around the injector
fixing is sound (change if in doubt).
4. Turn on the gas supply, check for soundness and re- commission.
Replacement of the Thermocouple
1. Repeat operations 1-4 for removal of gas control.
2. Remove the Thermocouple from the rear of the Valve.
3. Disconnect the Thermocouple wires from the E.D.B.
4. Undo the Thermocouple nut from the pilot assembly, remove the Thermocouple and replace.
5. Replace in reverse order, turn on gas supply, check for soundness, correct operation and re-
commission.
Replacement of the Pilot Injector
1. Repeat operations 1-4 for removal of gas control.
2. Undo the pilot tube nut and Thermocouple retaining nut at the pilot bracket.
3. Remove the two pilot bracket retaining screws
4. Pull the pilot bracket gently upwards taking care not to damage the pipe or olive hook nut.
5. Remove the pilot injector from the top of the pilot pipe.
6. Replace pilot injector. This part is not serviceable.