Fuel Heating; Burner Start-Up Cycle; Maintenance - Riello RG1RKD Instructions Pour L'installation, L'utilisation Et L'entretien

4.4 FUEL HEATING

In order to assure regular ignition and working also at low temperature the burner has an oil pre-heater fit-
ted in combustion head. The pre-heater starts when thermostats close.
When the required temperature for ignition is reached the thermostat fitted on the nozzle holder starts the
burner.
The pre heater remains energised during working and cuts out when burner shuts-down.

4.5 BURNER START-UP CYCLE

Normal
1 st stage thermostat
2 nd stage thermostat
Heating
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
burner acting on the main switch of the system.
THE BASIC CHECKS ARE:
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.
2305
~
–
0 150s
12s
Lock-out due to failure to light
– –
3 28s 0
9 GB
~
150s
12s 5s
A
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