Installation and operating instruction
Oil burner WL5/1-B H
3 Product description
83272102 1/2019-03 La
10-76
3.3 Function
3.3.1 Air supply
Air damper
The air damper regulates the air quantity required for combustion. The air damper
position is set using a setting screw on the air damper or the actuator (optional).
At burner shutdown the the actuator (optional) automatically closes the air damper.
At burner shutdown the air dampers close automatically.
Fan wheel
The fan wheel supplies the air from the air intake housing to the combustion head.
Diffuser
The air gap between flame tube and diffuser is adjusted by positioning the diffuser.
This adjusts the mixing pressure and the air quantity required for combustion.
3.3.2 Oil supply
Oil pump
The pump draws the oil through the supply line and carries it under pressure to the
oil nozzle. The pressure regulating valve keeps the oil pressure constant.
A solenoid valve opens and closes the oil supply to the nozzle. The pressure regu-
lating valve and solenoid valve are integrated into the pump.
Nozzle head with nozzle shut off
The nozzle shut off is integrated in the nozzle head. It prevents oil leaks after shut-
down.
Heat exchanger
The heat exchanger in the nozzle assembly heats the oil. At an oil temperature of
approx. 45 °C the temperature switch releases the burner start.
Sequence diagram
1
2
3
1
Oil pump on burner
2
Solenoid valve on the oil pump
3
Nozzle head with nozzle shut off and nozzle
