ICI - Innovative Creations, Inc. AX - Manual (Page 12)

BOILER OPERATION
10
4 BOILER OPERATION
4.1 FIRST START-UP
WARNING: Before start up insert all the turbolators into the smoke tubes ensuring that there is a
space of at least 100 mm at the front after they have been pushed fully inside.
• Verify that all fittings are tight.
• Verify that the feed water pipes are clean, carrying out a series of washing operations with drainage to
waste before final boiler filling.
• Close the drain valves, the steam take-off valve and the level drains.
• Open the level control valves and the feed water valve (upstream of the feed water pump).
• Check that the upper man-way is correctly closed.
• Start the boiler as follows:
1) Switch on the control panel by turning the main switch.
2) Check that the drive shaft of the feed water pump is free to turn. By starting the pump manually for an
instant, check that the shaft turns in the correct direction.
3) Set the pump switch to AUT and verify that burner cannot start before the attainment of the minimum
level;
4) Check that the pump stops when the maximum level is reached by observing the level indicators and
checking the positions of the indicator valves.
5) Press and keep pressed the safety water level reset button for at least 10 seconds, the conductivity
relay being of the delayed type.
6) Open the boiler drain and check on the level indicator at what level the pump-start probe acts.
7) Set the pump switch to “0” leaving the drain open and check the actuation level of the safety probes
with respect to the minimum level reference plate.
8) Close the drain and set the pump switch to AUT
9) Switch on the burner and bring the boiler up to pressure adjusting the operation pressure.
WARNING: On boilers with a man-way, during the first start-up it is important to tighten progressively the
nuts on the man-way cover as the pressure increase. Otherwise a hazardous situation is created due to
steam leaks that quickly deteriorate the gasket creating a dangerous situation for the boiler room personnel.
4.2 NORMAL OPERATION
With cold start-ups, verify that:
• The boiler is full of water to the minimum level;
• The increase of the water volume due to heating does not raise the water level too far: if necessary drain
the boiler at regular intervals to bring the visible level back to the centre of the water level sight glasses;
• On reaching the set pressure, the steam take-off valve can be opened very gradually in order to heat the
steam delivery lines eliminating any condensate that may be present in the pipework;
• The man-way gasket does not leak.