SYS 10-23
5
1.2 Control panel
To access the control panel, open the drop down cover.
1.3 Ignition and shut-down
Ignition
• Open the gas cock of the boiler.
• Vent air present in the pipe upstream of the gas valve.
• Turn on the switch (if present) or plug upstream of the boiler.
• Turn on the boiler switch
• Rotate the C.H. temperature adjustment knob above Min position.
• Check the external controls are calling for heat.
• At this point, the burner ignites and the boiler starts to function automatically, controlled by
its control and safety devices.
If after completing the start-up procedure correctly, the burner fails to ignite and the boiler shut
down warning lights up, wait about 15 seconds then press the reset switch. The reset electronic
control unit will repeat the start-up cycle. If after a second attempt the burners still fail to ignite,
consult the paragraph “Troubleshooting”.
If there is a power failure while the boiler is in operation, the burners automatically go out
and re-ignite when the power returns.
If the system is filled with very cold water, the boiler will automatically light due to the
frost thermostat sensing the low temperature. The boiler will not shut down, until the water
temperature reaches 10°C.
Shut-down
Close the gas isolation valve upstream of the boiler, push the button “A” to OFF and disconnect
the appliance from the mains power supply.
When the boiler power is off the boiler anti-freeze protection is not active.
For extended periods of inactivity during the winter months, and in order to avoid damage
due to freezing, all the water should be drained from the boiler; alternatively, place approved
antifreeze fluid in the central heating system.
fi g. 1
A
B
C
D
A
On /OFF switch
B
CH boiler thermostat
C
Rseset knob with lamp
D
Central heating pressure gauge
Содержание SYS 10-23
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