CONTENTS
1
DESCRIPTION OF THE BOILER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 54
2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 56
3
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 63
4
USE AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 65
It is advisable to check the following before turning on the boiler for the first time:
- Check that there are no liquids or flammable materials in the immediate vicinity of the boiler.
- Check that electrical connections have been made correctly and that the ground wire is connected to a proper grounding
system.
- Open the gas cock and check the seal on connections, including the burner connection.
- Check that the boiler is set up to run on the type of gas available.
- Check that the flue through which the products of combustion are eliminated is free.
- Check that gate valves are open, if there are any.
- Check that the heating system has been filled with water and air has been bled out of it.
-
Turn on the circulation pump, unless it is commanded by an automatic system.
- Bleed air out of the gas pipe using the pressure intake bleed valve located on the gas valve inlet.
-
Check that none of the regulation, control and safety devices have been tampered with.
NOTE: When turning the generator back on, or if the boiler has not been used for some time, it is advisable to bleed gas
pipes for air. If this is not done, burner ignition may be delayed, possibly causing the boiler to shut down. Wait at least 20
seconds from the time the indicator light comes on before releasing it.
If there is no voltage, the
again automatically. When the gas pressure is insufficient, the burner immediately turns off and the insufficient gas pres-
sure warning signal is enabled.
If this occurs, the boiler cannot be started up using
The boiler will be ignited automatically when the pressure returns to the minimum pressure setting on the gas pressure
switch (10 mbar).
CHARACTERISTICS OF THE SYSTEM SAFETY VALVE: calibration pressure: 5 bar; maximum generator power: 373.4 Kw,
3/4" x 1" fixtures (see Caleffi catalogue, code 527550).
INSTALLER'S INSTRUCTIONS
IMPORTANT
burner will shut down immediately. When the voltage is restored, the boiler will start functioning
the device's release button, for safety reasons.