Safety Devices - Immergas Super CAESAR Manual

Technical Documentation
No ignition block
Overheating block
Sealed chamber post
ventilation
Breakage of the d.h.w. NTC
probe (B2)
H2
(red led)
off
off
off
on
intermittent
flashing
simultaneous flashing
off
STSC ed 09/04

Safety devices.

If, within 10 seconds from the start of the ignition cycle, the detection electrode (E3) fails
to detect the flame on the burner, the appliance operation is stopped.
To start the appliance again, the functioning knob (S4) has to be moved to "OFF" and
afterwards, after putting the selector back to "ON", run the hot water.
The tripping of the safety devices is indicated by the lighting up of red LED H2.
In the event of the overheating safety thermostat contact (E4) opening, the appliance is
stopped.
To start the appliance again, the functioning knob (S4) has to be moved to "OFF" and
afterwards, after putting the selector back to "ON", run the hot water.
The tripping of the safety device is indicated by the flashing of red LED H2.
After the burner has switched off, at the end of a request, the combustion chamber is
washed and the fan (M1) is kept running for 30 seconds.
Breakage of the d.h.w. NTC probe (B2) prevents the appliance from working.
The tripping of the safety device is indicated on the control panel by the flashing of the
yellow LED H1.
Indicators.
H1
Depending on their condition, these indicate:
(yellow led)
off Water heater off or no operation request
Water heater in stand-by
Fast flashing
Presence of flame
on
No ignition block
off
Overheating block
off
Flue pressure switch failure or no air
intermittent
D.h.w. NTC probe failure
flashing
Technical Documentation
18
Super CAESAR