17
only original external temperature probes supplied by the manufacturer must be used
.
The use of non-original external temperature probes, with technical specifications differing from those required by the
electronic parts, may affect boiler and external probe operation.
1.8.7.
operation with (optional) remote control
Boiler interface includes all the possible functions of a Remote Control (optional - not compulsory, supplied by the manufacturer) so as to manage
several boiler parameters, such as:
- boiler status;
- ambient temperature selection;
- CH water temperature;
- DHW water temperature;
- CH system or external heater (optional) activation times programming;
- boiler diagnostics display;
- boiler reset;
and others.
For instructions on how to connect the Remote Control, refer to par. 3.2.13 and to its own instruction booklet.
only original remote controls supplied by the manufacturer must be used.
The use of non-original remote controls, not supplied by the manufacturer, may affect Remote Control and boiler operation.
1.9.
Boiler shutdown
The boiler shuts down automatically if a malfunction occurs. Refer to Tables 3 and 4 to identify the boiler operating mode.
To determine the possible causes of malfunction, see also paragraph 6.
Troubleshooting
section is at the end of this manual.
Below is a list of kinds of shutdown and the procedure to follow in each.
1.9.1.
Burner shutdown
Fault code e01 is displayed flashing on the display in the event of burner shutdown due to missing flame. If this happens, proceed as follows:
- check that the gas cock is open and light a kitchen gas ring for example to check the gas supply;
- once having checked if the fuel is available, press the "reset" button to restore burner operation (C, fig. 1): if, after two starting attempts, the boiler
still fails to start and enters the shutdown mode again, contact a Service Centre or qualified personnel for maintenance.
If the burner shuts down frequently, there is a recurring malfunction, so contact a Service Centre or a qualified service engineer.
1.9.2.
Shutdown due to overheating
In case of flow water overheating, the boiler shuts down and the e02 code will start flashing.
Contact a Service Centre or a qualified service engineer to carry out the maintenance.
1.9.3.
Shutdown due to incorrect air/flue gas system draught
If the air intake/flue gas system malfunctions, the boiler shuts down. The code e03 (flue gas thermostat triggering) is starts flashing on the display.
Contact a Service Centre or a qualified service engineer to carry out the maintenance.
1.8.6.
operation with external probe (optional)
Boiler can be connected to a probe measuring the external temperature (optional - not compulsory, supplied by the manufacturer). Once the
external temperature value is known, the boiler will automatically adjust the heating water temperature: increasing it as the external temperature
decreases and decreasing it as the external temperature increases. This will both improve room comfort and reduce fuel consumption. Standard
and reduced range max. temperature values will nevertheless be respected.
This boiler operating mode is called “
sliding temperature operation
”.
Heating water temperature varies based on a programme written inside boiler electronic microprocessor.
When working with an external probe, the h/- buttons (B, fig. 1) are no longer used to set heating water temperature, but to edit
virtual ambient temperature, namely the desired theoretical temperature.
During temperature setting, the virtual ambient temperature symbol flashes on the display (10, fig. 1)and the value being set is shown.
For curve optimal setting, a position close to 20° C is recommended. For further details on sliding temperature, refer to paragraph 3.2.14.
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