Riello 3739751 Manuel D'entretien page 38

4.4 BURNER START-UP CYCLE
Normal
st
1 stage therm.
nd
2 stage therm.
Motor
Ignition transformer
st
1 stage valve
st
1 stage flame
nd
2 stage valve
nd
2 stage flame
Lock-out lamp
Lock-out due to
failure to shut-down
0
A
Lock out is indicated by a lamp on the control box (4, fig. 1, page 1).
B
In this case the burner will not reset because there is a serious fault.
The authorized service agent will first of all check the efficiency of the photoresistance (8, fig. 1, page 1),
the 1st stage interception valve (12, fig. 1, page 1) and the pressure adjuster piston (8, fig. 8, page 4).
BURNER CAN BE RESET WITH A PROPER TOOL INSERTED INTO THE HOLE LOCATED AT THE BOTTOM
OF THE CONTROL BOX.
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.
2334
All manuals and user guides at all-guides.com
Lock-out due to
failure to light
~
– –
150s 12s 3 28s 0
CALL THE SERVICE AGENT
THE BASIC CHECKS ARE:
Lock-out due to
A
failure to shut-down
~
–
150s 12s 5s
8 GB
~
– –
0 150s
12s 3 28s
B
–
20 60s
D5369