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4.4 BURNER START-UP CYCLE
1 st stage thermostat
2 nd stage thermostat
Motor
Ignition transformer
1 st stage valve
1 st stage flame
2 nd stage valve
2 nd stage flame
Lock-out lamp
A
Lock out is indicated by a lamp on the control box (4, fig. 1, page 1).
5. MAINTENANCE
Burner requires a periodic maintenance carried out by a qualified and authorized technicians.
Maintenance is essential for the reliability of the burner, avoiding the excessive consumption of fuel and
consequent pollution.
Before carrying out any cleaning or control always first switch off the electrical supply to the bur-
ner acting on the main switch of the system.
Check that there are not obstructions or dents in the supply or return oil pipes.
Clean the filter in the oil suction line and in the pump.
Check for correct fuel consumption.
Replace the nozzle.
Clean the combustion head in the fuel exit area, on the diffuser disc.
Leave the burner working without interruptions for 10 min. and check the right settings at 1 st and 2 nd
stage of all components stated in this manual. Then carry out a combustion check verifying:
Smoke temperature at the chimney.
Content of CO
( % ).
2
Content of CO (ppm).
Smoke value according to opacity smokes index according to Bacharach scale.
2312
All manuals and user guides at all-guides.com
Normal
~
12s
3 – 28s
THE BASIC CHECKS ARE:
Lock-out due to failure to light
~
12s
8
GB
A
5s
D6040
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