Saturn NHC 25B/30B/41B - Safety devices; Ignition safety device; Low water level safety device; Overheat prevention

When the boiler does not ignite, or if the flame
falls the flame detector (photocell) will
deactivate
the boiler.
Ignition safety device
Low water level safety device
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Safety devices
If the water level is insufficient in the boiler
the low water level sensor will deactivate
the boiler. Once the system is adequately
refilled this will automatically reset.
Overheat prevention
If the temperature of the boiler rises to
dangerously high levels the overheat
sensor will deactivate the boiler.
In this instance the “CHECK” light will show. To
reset press the “RESET” button on the overheat
preventer.
Frost freezing prevention
At a boiler temperature of 9°C the circulating
pump will be activated. At a boiler temperature
of 2°C the burner will ignite. For this reason,
power must be maintained to the boiler, even if
the system is not in use.
Power-failure protection
In the event of power failure the oil supply will
automatically be isolated from the combustion
chamber.