KEY RK-2006LPP, Operation Manual, Page: 9 / 36

9
B O I L E R T E M P . 6 0 c
A U G E R E X T I N C T .
Auger sensor damage.
In case of auger temperature sensor damage, as in case of overheating, the
controller will go to shut down mode and will activate the appropriate alarm:
A L A R M : A U G E R
T E M P . S E N S O R
CAUTION! This alarm may be cancelled only after repairs.
Burner temperature sensor damage.
If flame temperature detector (CT-1/2 or PT-1000) has been connected to the
controller, its damage will result in activation of the alarm and switching into
STAND-BY mode.
A L A R M : B U R N E R
T E M P . S E N S O R
Protection against boiler overheating.
RK-2006LPP controller is provided with triple protection against boiler overheating. If
boiler water temperature set point is equal to the programmed „Boiler max.
temperature” service setting, the controller will engage central heating pump.
If water boiler temperature increases above 93°C, it will activate STB system which
will automatically engage power for central heating pump and will shut off blower.
Operation of STB will result in switching the controller to STAND-BY mode. Normal
operation of STB will be resumed, if boiler temperature drops below 90°C.
Boiler water temperature increases up to the programmed „Boiler overheating
temperature” service setting will result in fan turning off, engagement of central
heating pump and switching the controller in STOP mode, but EXTINCTION (SHUT
DOWN) mode and alarm will not be activated:
A L A R M : B O I L E R
O V E R H E A T
CAUTION! This alarm may be cancelled, if boiler water temperature drops below the
overheating temperature setting.