Service And Maintenance; Adjustments; Startup; Maintenance - Ferroli GFN K Instructions For Use, Installation & Maintenance

3. Service and maintenance

All adjustment, commissioning and periodical control operations described below must only be carried out by Qualified Per-
sonnel (meeting the professional technical requirements prescribed by current regulations).
FERROLI declines any liability for damage and/or injury caused by unqualified and unauthorised persons tampering with
the unit.

3.1 Adjustments

Secondary air adjustment
The secondary air control device must be set during the commissioning stage.
Adjust the air inlet door adjustment screw so that in any case there remains an air passage of not more than 1 - 2 mm.
With the boiler cold, set the thermostat to 60°. Hook the chain to the special air inlet door eyelet, adjusting its length so
that the air passage "L" (fig. 2) is approx. 15 mm for "coke III" and 2 mm for "wood".

3.2 Startup

B
Checks to be made at first lighting, and after all maintenance operations that involved disconnecting from the
systems or operations on safety devices or parts of the boiler.
Before lighting the boiler
• Open any on-off valves between the boiler and the systems.
• Check correct prefilling of the expansion tank
• Fill the water system and make sure that all air contained in the boiler and the system has been vented.
• Make sure there are no water leaks in the system, connections or boiler.
• Check correct connection of the electrical system and efficiency of the earthing system
• Make sure there are no flammable liquids or materials in the immediate vicinity of the boiler
Checks during operation
• Turn the unit on as described in sec. 1.3.
• Check the seal of the water systems.
• Check the efficiency of the flue and air-fume ducts while the boiler is working.
• Check that the water is circulating properly between the boiler and the systems.
• Check the seal of the wood loading and combustion chamber doors.
• Check combustion and correct setting of the secondary air control device.

3.3 Maintenance

Instructions
B
- Before carrying out any maintenance operation, disconnect the power to the boiler and wait until it is at room
temperature.
- Never drain (even partially) the water from the system unless absolutely necessary.
- Do not clean the boiler and/or its parts with easily flammable substances (e.g. petrol, alcohol, etc.).
- Do not leave containers of flammable substances in the room where the boiler is installed.
- Do not clean the heating system when the boiler is operating.
- Use tube brushes and aspirators for cleaning; if rags are used, make sure they are not left inside the boiler.
- If the ash is still hot, wear protective gloves.
- Put the ashes in a non-flammable container provided with lid.
Regularly or the end of every period of operation, carefully clean the boiler, and also the flue if necessary. To clean the
boiler, open both cast-iron doors, remove the coal grate then, with a flexible metal tube brush, carefully clean the com-
bustion chamber and the various flueways. Then remove any soot deposited in the ashpan. Also make sure the fume
exhaust pipes and flue are clean and perfectly tight.
38
cod. 3540I190 - 10/2007 (Rev. 00)
GFN K
GB