Technical data

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3. BOILER OPERATION
3.1 Start-Up / Pre-Checks
• Checkiftheelectricity,gasvalvesandwatervalvesareopen.
• Opentheradiatorvalves.
• Checkifthereismainswatersupply.IfmainswatersupplyisOFF,
heatingsystemwatermightowtothemainswaterinstallation,emp-
tying the radiators.
3.2 Water Filling
WARNING! Do not charge water while the boiler is running. Wait for the
boilertocooldownbeforellingwater.
• Ifthepressuregaugeshowsbelowthelowergreenzone,watermust
be charged to the boiler and the heating system. To do this;
Turnthewater-llingtapattheboilerbottomslowlytoopen.
WARNING!Ifyoullthesystemveryrapidly,airmaycollectintheheat-
ing system or in the boiler.
• Watershouldbechargeduntilthepressuregaugeindicatesgreen
regionpressure.Donotforgettoturnthellingtapoffafterwaterll-
ing is completed.
• TurntheboilerON.
• Checkthepressureonpressuregaugeasthesystemheatsupafter
a while. Pressure should not exceed green region.
• Opentheairreleasetapsontheradiatorsandatthehighestpointof
installation, if any. Wait until water drains continuously before closing
the air release taps.
• Check“insufcientsystempressure”codeandpressuregaugeagain.
If the code appears, charge water to the system again.
WARNING! If there is noise in the boiler or installation, repeat air-releas-
ing process.
WARNING! It is recommended that the boiler be turned OFF during air
releasing process.
• Checktheheatingsystempressureregularly.