KEY RK-2006LP, Operating Manual, Page: 23 / 40

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Furnace extinction (shut down) time - if the controller switches to extinction (shut
down) mode, the induction fan is activated according to power selected in „Fan
speed at extinction (shut down)” setting. The parameter defines the duration of
extinction. This function ensures combustion of all fuel remains and burner cool
down.
F U R N A C E E X T I N C .
T I M E 5 m i n
Furnace cleaning mode - the parameter defines the way the cleaning mechanism
works.
„NONE" - means the burner is not equipped with a cleaning mechanism. In
such case, the DATA output works as an external alarm signalling device.
„CYCLE" - means the cleaning procedure is activated after the flame has
occurred and is repeated in cycles until the burner is extinguished (end of the
POSTCOMBUSTION mode). The cleaning depends on activating the mechanism for
the period set in the „Cleaning mechanism work time" parameter. Once the cleaning
mechanism has been turned off, the time set in the „Cleaning mechanism retraction
time" and „Cleaning mechanism pause time" parameters is counted down.
„ROTO” - the cleaning mechanism operation in the ROTO mode is similar to its
work in the CYCLE mode. The difference is the output controlling the cleaning
mechanism is activated for the whole period of the EXTINCTION mode.
„AUTO" - means the cleaning procedure is automatic and is activated when the
determined number of shutdowns or long burner working time occurs. The automatic
cleaning depends on the furnace extinction, starting the cleaning mechanism for the
period set in the „Cleaning mechanism opening time" parameter and activating the
fan with capacity defined in the „Fan speed when cleaning” parameter. When the
mechanism output and the fan are turned off, the time set in the „Cleaning
mechanism closing time" parameter will be counted down and the controller
standard work will be resumed.
„COMBI” - the mode is a combination of the „CYCLE” and „AUTO” modes. The
mechanism starts its operation after the KINDLE FIRE STABILIZE has finished – its
work is turned on and off in cycles whose duration is defined in the „Mechanism
working time” parameter. When the cleaning mechanism is turned off, the time set in
the „Mechanism retraction time” and „Mechanism pause time” parameters is counted
down. When the cleaning mechanism is in the EXTINCTION mode, its output is
turned off. Once the determined number of SHUTDOWNS occur or the burner
operates long enough, the automatic cleaning will be activated (furnace extinction,
activation of the cleaning mechanism for the time set in the „Mechanism opening
time” parameter and starting the fan with the capacity determined in the „Fan speed
during cleaning” parameter). When the output of the mechanism is turned off, the fan
is not active, the time set in the „Mechanism closing time” parameter is counted
down and then the regular work is resumed.