Operation manual for M RS 420 ESTYMA control unit
24
NOTE!!!
The circulation pumps will be turned on and will run in pre-alarm mode
when the temperature rises to 2ºC less than the boiler alarm temperature. If the
temperature does not rise above the alarm level, information on the incident will
not be saved in the control unit’s memory.
- no flame/no fuel
; the alarm is activated when there is no fuel or no flame in
the burner.
- check suction system
; the alarm is activated if the suction system has made
three consecutive failed attempts to ignite the fuel.
NOTE!!!
Once an alarm has been activated you should determine and eliminate
its cause.
-
the
Independent Thermal Boiler Protection
(
ITBP
) is independent of the
microprocessor system. An independent thermal switch will cut off the power
supply to the blower if the boiler temperature exceeds 94ºC.
