Viadrus ViaKON 24 B, Руководство по эксплуатации для пользователя

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6
User’s operating instructions
Reset key with “Chimneysweeper” mode
WARNING!
This operation can be carried out exclusively by personnel from authorized After Sales Service
centres.
The user is NOT authorized to activate the following described mode.
By pressing this key the “Chimneysweeper” mode is activated. This means that the boiler will be forced
to operate at the maximum (or minimum) output so as to permit the adjustment operations and the
combustion analysis.
By pressing this key for at least 3 seconds the boiler will operate at the maximum output (led D =
illuminated and flashing and led E = constantly illuminated).
By briefly pressing this key again (<3 secs.), the boiler will operate at the minimum output (both the
leds D and E flashing).
By briefly pressing this key again (<3 secs.), the boiler will operate at the minimum output (both the
leds D and E flashing).
The “chimneysweeper” mode will remain enabled for 15 minutes. To disenable the “CHIMNEYSWEEPER” mode before
this set time has elapsed, press the reset/chimneysweeper key “G” for at least 3 seconds.
System temperature control/pressure gauge
This displays:
•
on the upper scale the central heating hot water flow temperature is indicated.
•
On the lower scale the water pressure in the central heating system is indicated.
•
If the pressure is lower then 0,7 bar, then it will be necessary to restore the correct pressure by
operating the filling valve when the system is cold and the boiler not operating
6.2 CHECK LIST BEFORE COMMISSIONING THE BOILER
Before commissioning the appliance it is recommended to check the following points:
•
Check that the On-Off gas valve, positioned upstream of the boiler, is in the On position.
•
Check that any On-Off valves fitted on the flow and return pipes for servicing purposes are in the On position.
•
Check that any On-Off valves fitted on the cold water inlet for servicing purposes are in the On position.
•
Check that the pressure relief valve drainage pipe is connected to the sewage system.
•
Check that the boiler is connected to the electrical supply; the green indicator led ( ) on the control panel must be
illuminated.
•
Check the heating system pressure, indicated by the pressure gauge. For correct operation the pressure should be
between 0,8 and 1 bar (with the pump not running). If the pressure falls below 0,7 bar restore the correct pressure
by regulating the filling valve when the system is cold and the boiler not operating (refer to paragraph 6.5).