Oilon GKP-350 M, Operation And Maintenance Manual

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● Main unit must be set to either manual use or automatic use. If automatic use is
selected, the capacity controller must also be switched on.
● Remote start-up circuit contacts must be closed
● Boiler thermostat / pressure switch contacts must be closed.
20, 21 Start-up
● Main unit safety features activate.
● Oil safety valve opens (optional)
● Return oil pressure must be below the set maximum of the pressure switch
throughout normal operation until a controlled shutdown. If the pressure switch is
triggered, fuel intake is cut and the burner shuts down.
● Oil start-up release switch must be closed (optional).
22 Fan motor starts and pre-ignition is initiated
24 Servomotors drive to their pre-purge position
● Fan contactor must be closed.
If frequency converter is in use, motor sensor must detect motor rotation speed and
direction.
30... 34 Pre-purge
● Pre-purge begins.
● Lockout if burner control receives flame signal. Control is active until the beginning
of pre-ignition.
36 Servomotors drive to ignition position
38 Pre-ignition begins
Oil pump motor starts.
40... 42 Safety time begins
● Control circuit nozzle valve solenoid valve NC opens.
● Nozzle valve opens when pressurized oil reaches nozzle valve control circuit.
● Oil atomizing begins with ignition position atomizing pressure.
● Oil is ignited by spark.
44 Interval 1, safety time ends
● Safety time ends.
● Ignition ends.
● Flame has to be ignited by now. Otherwise burner control goes to lockout, because
flame signal has not been received.
● Flame burns with set ignition load.
54 Servomotors run to min. capacity
60 Operation
● Burner control in automatic operation: burner control capacity controller adjusts
burner capacity on modulating range to correspond to the load by controlling air
dampers, fuel regulator and fan motor rotation speed. Burner operates controlled
by burner control and capacity controller according to set parameters and functions.
Burner is switch off if process value exceeds the controller setting.
● Burner in manual operation: burner operates on capacity set by user. Burner is
switch-off controlled by boiler thermostat or pressure switch.
● Lockout, if flame signal or air pressure signal is lost during operation.
● Lockout, if return oil pressure rises too high.
104 (129) M5178 1647EN