VIGAS 25 Lambda Control - Page 18

Gasifying boiler Vigas
STB
12.1 STB failure
13. SERVICE SETTINGS PIN 0000 PROTECTED
13.1 SERVICE SETTINGS
13.1.1 Boiler type setting
13.1.2 Lambda sensor setting
18
Service settings under password - PIN 0000 can be used only in unavoidable cases. Only trained service
engineer can do the setting (can be done by customer on special occasion). In servise settings can be
selected boiler type with accessories and hydraulic connection scheme, etc. To retrieve the service setting
under the password „PIN 0000“ press hold „ENTER“ button at boiler phase, press ▲button and hold
button ◄ for 4 s. „PIN 0000“ will apear. Press „ENTER“ button 4 times. Service setting symbol will appear
on the display. Press „ENTER“ and by choosing buttons ▲ select service operation.
No error condition: Green LED indicator
Error : Red LED indicator
Error notifications and solutions are described in chapter 18.“
PROBLEMS, CAUSE AND SOLUTIONS“
„STB“ failure is caused by overheating the boiler.
Thermal fuse is activated (see pic.). The fan is
disconnected from power supply. Boiler is again
activated only if „STB“ is reset manually, when boiler
temperature is under 60 °C. To switch on the boiler
press „ENTER“ button, again.
2 sec.
4s
4x
ATTENTION!
Control display unit of the boiler AK4000 is used to operate all types of
VIGAS boilers. It is important that display figure is same as boiler type.
When boiler in „OFF“ regime the display shows type of boiler, which is
compliant with its nominal output. For correct boiler operation type of
the boiler must be always the same as type indicated on the
production sticker label. Always check, in case the display AK4000
is replaced!!!
Choose boiler type. Type of the boiler must be identical
with boiler type indicated on the production sticker label.
Marking: V25 - boiler output TVZ – hotair boiler, UD –
wood-coal, DP – wood-pellets, L – Lambda control.

It is possible to deactivate lambda sensor from
operation if error occurs. In such case it is possible to
run boiler in standard version untill lambda sensor is
replaced.
yes – boiler with lambda sensor, no – boiler without
lambda sensor