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4
4 - Visual check of the combustion process or analysis of combustion by-
products (see section 4.5) and cleaning of the burner if needed.
5 - If called for by point. 3, dismantling and cleaning of the combustion
chamber.
6 - If called for by point. 4, dismantling and cleaning of the burner jets.
7 - Visual check of the primary heat exchanger:
- check for overheating in the blade assembly;
- clean the exhaust fan if needed.
8 - Adjustment of the flow rate of the gas: flow rate for lighting, partial load
and full load.
9 - Check of the heating safety systems:
- safety device for maximum temperature (overheat thermostat);
- safety device for maximum pressure (safety valve).
10- Check of the gas safety systems:
- safety device for lack of gas or flame ionisation (detection
electrode);
- safety device for gas cock.
11- Check of the electrical connection (make sure it complies with the
instructions in the manual).
12- General check of the combustion by-products of the
discharge/ventilation system.
13- Check of the general performance of the unit.
LEGEND:
1. Flue connector
2. Air intake for twin pipe flue systems
3. Fan
4. Combustion chamber hood
5. Main heat exchanger
6. Safety thermostat
7. Combustion chamber
8. Combustion chamber insulation panel
9. Detection electrode
10. Ignition electrodes
11. Burner
12. Regulation thermostat
13. Frost thermostat
14. Pump pressure switch
15. Safety valve (3 bar)
16. Automatic By-pass
17. Gas valve
18. Spark generator
19. Boiler drain valve
20. Circulation pump with automatic air release valve
21. Expansion vessel
22. Air pressure take-off point
23. Air pressure switch
24. Combustion analysis points
1.2 O
VERALL VIEW
FIG. 1.0