termovana Stella Installation, Maintenance And User Manual page 20

Boiler built-in fault finding system
Ionic control during lock-out
Activation of safety thermostat
Activation of fumes thermostat
Boiler settings error FF/ATM
Activation air pressure switch
Parasite flame
Activation of H O flow switch
2
Failure of NTC heating system sensor
Failure of NTC sanitary system sensor
Activation of safety thermostat (during sanitary function)
Boiler in central heating phase
Boiler in domestic hot water cycle
Boiler in anti-frost cycle
Stand-by
Stand-by (during heating phase)
Stand-by (during summer phase)
Remote control activated
ON L0 lit LED flashing 2 sec. ON – 0,2 sec. OFF
ON L1 lit LED flashing 5 sec. ON – 0,2 sec. OFF
ON L lit LED flashing 0,5 sec. ON – 0,5sec. OFF
ON LED on
OFF LED off
(1)
lit LED flashing of all (ON quick and 3 sec. OFF)
The appliance undergoes the ignition phase, and once firing it continues functioning until
the preset temperature is reached. Ignition and the following stops shall take place
automatically according to the preset temperature.
If the safety thermostat is activated, as indicated by the corresponding LED (see Chart No.
1), the boiler goes through a thermal safety stop. In this case, turn "1" adjustment in
stand-by position and later in heating position to restart the ignition procedure.
• Make sure that the adjustment devices function properly.
• Control the production of domestic hot water.
• Make sure that overheating thermostat functions properly.
Once the boiler has been fired and while operating under the indicated conditions,
the following stop and ignition checks must be carried out:
• Modifying the adjustment thermostat calibration.
• Regulating the room thermostat (if supplied).
If the results are successful, control the combustion (fume analyses) and the fuel flow,
checking the values indicated on the data plate.
Warning
Reset all the safety and control functions to guarantee their correct
functioning before setting the appliance to operation.
19
SANITARY
GREEN LED
OFF
OFF
ON L
(1)
ON
ON L
OFF
OFF
ON L
OFF
OFF
ON L
ON L
ON L 1
ON
ON
ON
HEATING
RED LED
GREEN LED
ON OFF
ON ON
ON OFF
(1) (1)
ON OFF
ON ON L
ON ON L
ON L ON L
ON L OFF
ON L1 ON L
OFF ON L
OFF OFF
ON L 1 OFF
OFF OFF
OFF ON
OFF OFF
OFF ON L0