termovana Stella Installation, Maintenance And User Manual page 18

Check to see that the water circuit is perfectly sealed and that the safety
•
valve works properly;
• Check that the boiler is suitable for use with the type of gas available;
• Open all doors and windows; make sure that there are no naked flames or
sparks; control that the gas supply circuit is perfectly sealed (according to
the provisions in force) and that the taps are open;
• Make sure that the discharge pipes are clean and sealed;
• Check that the voltage and the mains frequency are appropriate for the
values indicated on the boiler data plate;
• Check the phase and neutral polarity of the appliance matches the electrical
mains polarity;
• Make sure that the equipment is properly earthed;
• Check the electrical connections of the external components (thermostats,
remote control, etc.), if supplied;
• When loading the system, check that the plug of the automatic air purge
valve located on the pump is loose;
• Make sure that the pump is not blocked; if so, remove the front plug to
unblock the driving shaft with a screwdriver;
• If pressure is lower than 1 bar, feed more water into the circuit.
• Make sure that the appropriate valves are open;
• Open the gas inlet cock and apply some soapy water to all connections,
including the burner connections, to check tightness; eliminate any leaks, if
present.
• Control the minimum and maximum gas pressure values at the burner, and
adjust them according to the values indicated in the chart;
• Check that the flue pressure switch functions properly (C type model);
• Make sure that there are no leaks in the fume discharge pipes;
17