Oilon GKP-50 MH, Operation And Maintenance Manual

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● Control unit during normal operation: the control unit adjusts the capacity controller
with two stages.
● Control unit during manual operation: the burner operates at the capacity set by the
operator. The control unit shuts down the burner if it receives a shutdown signal
from boiler thermostat/pressure switch.
● Safety shutdown if the flame detection signal or air pressure is lost during operation.
● Safety shutdown if the return oil pressure rises too high during operation.
● Safety shutdown if the servomotors do not reach their position feedbacks during
operation.
● Safety shutdown if the safety circuit opens during operation.
● Safety shutdown if the boiler temperature or pressure limit switch is activated during
operation.
Controlled shutdown
Servomotors drive to their minimum capacity position.
● Oil valves close (X01 + X02).
● Flame extinguishes.
Post-purge begins
0023 ver. 2
● Servomotors drive to post-purge position.
● Lockout, if the burner control receives flame signal.
● Fan motor stops at the end of the phase.
● The safety functions of burner control are powered down at the end of the post-
purge phase.
Servomotors drive to their standby position
Restart is possible when servomotors have reached their standby position.
Safety shutdown
● Servomotors drive to their standby position.
● Burner lockout is activated.
● After a safety shutdown, a manual reset is required to restart the burner.
M5164 1640EN 75 (95)