Ferroli XIGNAL CE Technical Information Installation And Service Instructions page 32

10.3 Switching the boiler on and off
Inspections to make when switching on for the first time
When the boiler is being switched on for the first time, it is advisable to check that:
the on-off valves between the boiler and systems are open;
the entire system is well charged and vented;
there are no gas or water leaks from the system or boiler;
the electric connection is correct and that the earth wire is connected to an efficient earthing system;
there are no inflammable liquids or materials in the immediate vicinity of the boiler;
the gas pressure and flow rate values are those required for heating.
Switching on the boiler
• Open the gas cock prior to the boiler.
• Purge gas supply.
• Power the boiler by means of the main switch.
• Select summer or winter operation by means of the relative buttons.
• Adjust the knob of the room sensor to the desired value (if winter mode is selected) or open a hot water
tap.
Switching off
Close the gas cock prior to the boiler and turn off the main switch.
Warnings - If the boiler is to remain inactive during the winter period, it is advisable to drain off all the
water in order to prevent damage due to freezing. Failing this, just drain off the hot water and put a special
antifreeze product into the heating system.
Inspections and monitoring after ignition
When switching on for the first time:
Check that the gas and plumbing systems are sound.
Check that the boiler ignites correctly. Test this by switching it on and off a few times by means of the
regulating thermostat.
Check the efficiency of the air-flue pipe during boiler operation.
Check that the fuel consumption indicated by the meter corresponds to that indicated in the technical data.
Check that water correctly circulates between the boiler and systems.
Check that when a hot water tap opens during "Winter" mode, the circulator stops and regular production
of hot water occurs.
Check that the burner switches on and off in the correct way when the hot water tap opens and closes
in "Summer" mode.
Check that the gas valve modulates correctly during both the heating and hot water production phases.
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