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OPTIMAX HE PLUS S
Cod. 3540R543 - 08/2012 (Rev. 00)
Indication during boiler operation
Central Heating mode
The Central Heating heat demand (generated by the OpenTherm Remote Control, the Room Thermostat or the Clock) is indicated by
the
fl
ashing of the Hot Air symbol over the radiator (part. 13 and 14 -
fi
g. 1). The display indicates the actual Central Heating water tem-
perature (part. 11 -
fi
g. 1) and during central heating off time the text “d2”.
fdp
dpngpsu
sftfu
fdp
dpngpsu
sftfu
fi
g. 2
1.3 Turning ON and OFF
Without main power supply
fdp
dpngpsu
sftfu
fi
g. 3 - Boiler without main power supply
To avoid damage caused by freezing during long
shutdowns in winter, it is advisable to drain all
water from the system.
Ignition
Ensure the power is on to the appliance.
fdp
dpngpsu
sftfu
fi
g. 4 - Ignition
fdp
dpngpsu
sftfu
fi
g. 5 - Air purge
For the
fi
rst 120 seconds, the display shows FH that identi
fi
es the Air purge function.
During the
fi
rst 5 seconds, the display shows the software version of the pcb.
Open the gas cock on the boiler and purge the air from the pipework upstream of the gas valve.
When the FH disappears, the boiler is ready to function automatically whenever the external controls are calling for heat.
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