BLUEHELIX MAXIMA
187EN
cod. 3541U630 - Rev. 00 - 07/2020
1.3 Connection to the power supply, switching on and off
Boiler not electrically powered
A
To avoid damage caused by freezing during long idle periods in winter, it is advisable to drain all the water
from the boiler.
Boiler electrically powered
Switch on the power to the boiler.
• During the first 5 seconds a screen appears giving the PCB firmware versions at the bottom.
• For the next 300 seconds the screen shows the progress of the heating system air venting cycle.
• At the end of the venting process, check that the gas cock ahead of the boiler is open.
To prevent the air venting cycle during boiler ignition, press and hold the words "BLUEHELIX MAXIMA” (about 10 se-
conds) until the main screen appears.
Activation of boiler operating modes
Heating can be enabled or disabled using the ON/OFF button (16 in fig. 1). When both are disabled (15 and 16 in fig. 1)
the boiler is off but still electrically powered.
With the heating mode deactivated the frost protection function still remains active.
B
The frost protection system does not work when the power and/or gas to the unit
are turned off. To avoid damage caused by freezing during long shutdowns in win-
ter, it is advisable to drain all water from the boiler, the DHW circuit and the heating
system water; or drain just the DHW circuit and add a suitable antifreeze to the
heating system, as prescribed in sec. 2.3.
1.4 Adjustments
Enable/Disable the DHW function
By touching the control “B” (fig. 2 and fig. 3) it is possible to enable ( ) or disable ( ) DHW. Disa-
bling DHW also automatically inhibits the heating function.
fig. 2- DHW function active
fig. 3- DHW function not active
ON
OFF
OFF
32.5°
ON
B
OFF
OFF
B
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