KEY RK-2006LP, Operating Manual, Page: 29 / 40

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Burner power modulation - when modulation is switched on it will results in
gradual reduction of fan speed and fuel dose to obtain boiler water temperature
corresponding to the programmed setting.
B U R N E R P O W E R
M O D U L A T I O N Y E S
Burner power modulation factor - this parameter specifies degree setting when
the controller will reduce burner power before boiler water temperature is obtained
according to the programmed setting. Burner power is reduced by gradual reduction
of fed fuel dose and fan speed reduction. This parameter is unavailable, if burner
modulation power is off.
M O D U L A T I O N
F A C T O R 5
5.8. Room thermostat.
RK-2006LP controller has been equipped with the input enabling connection of any
room thermostat provided with contact output. Closing the thermostat contacts is
signalized with blinking its lamp. When the contacts are opened, the lamp will be off.
CAUTION! The room thermostat input is active during work in the WINTER mode
only. The indicator signalizing the status of the input is independent of the entered
mode.
Room thermostat working mode - the parameter determines the influence of the
room thermostat input on the controller operation:
„NORMAL” - in the mode, once the thermostat contacts are closed, the burner
is ignited, and the boiler is going to maintain the temperature set with the boiler
thermostat knob. When the desired temperature is reached and the thermostat
contacts are opened, the burner extinction occurs and the controller enters the
STANDBY mode.
„ADAPTIVE” - in the mode, the changes in the thermostat input status are
analysed - on their basis the boiler programmed temperature is defined
automatically.
T H E R M O S T A T W O R K
M O D E N O R M A L
CAUTION! When the room thermostat is unused, its input should remain closed and
the thermostat working mode should be set to „NORMAL” In such case, the
temperature programmed with the boiler thermostat knob will be maintained
continuously.