Maintenance - Ferroli SYS 10-23 Installation, Maintenance And User Instruction

If, after correctly having performed the ignition operations, the burner does not ignite and the shut-
down warning light is on, wait around 15 seconds and then push the reset button "A" (Fig. 1) and
release it. The control unit will be reset and will repeat the ignition cycle. If, after a number of attempts,
the burner does not ignite, refer to the paragraph "Troubleshooting".
In the case of power failures while the boiler is in operation, the burners will switch off. When
mains power returns, the burners will automatically re-ignite.
Checks during operation
• Check the gas supply and the water system for tightness.
• Check the efficiency of the flues and air-flue gas pipes during the operation of the boiler.
• Check that the water circulation between the boiler and the systems is correct 11°C ∆T.
• Check the correct ignition of the boiler, by performing a series of ignition and shut-down tests using
the room thermostat and the time clock.
• Ensure that the consumption of gas indicated by the gsa meter corresponds to the values shown in
the technical data table in Chap. 4 section 4.4
• Flush and treat the system as per BS7593, whilst balancing the radiators and indirect hot water sup-
plys.
Shut-down
See page 5 of this manual.

3.3 Maintenance

The following operations must only be performed by Qualified Personnel
easonal checks on the boiler and the stack
S
T
he following checks should be made on the appliance at least once a year:
• The control and safety devices (gas valve, thermostats, etc.) must be working correctly.
• The air-flue gas terminals must be free of obstacles and not have any leaks.
• The water systems and the gas supply must be sound.
• The burner and the heat exchanger must be clean. Follow the instructions in the next paragraph.
• The electrodes must be free of deposits and positioned correctly;
(Ignition electrode gap 3.5mm)
(Flame sensing electrode 12 to 15mm).
• The pressure of the water in the system when cold must be around 1 bar; if not, restore this value.
• The expansion vessel must be full (1bar air pressure when cold and system at zero pressure).
• The gas rate and the pressure must correspond to the values indicated in the corresponding tables.
• The circulation pump must free and not be blocked.
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Sys 10 - 23