Instruction manual

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Temperature reaches 299°C and less, the exhaust fan is switched on again. This is protection against
exhaust fan and/or the exhaust sensor damage.
Boiler overheating
If the buffer is completely filled because too much fuel was loaded, the boiler temperature increases
to more than 90°C. Overheating occures and the exhaust fan is automatically switched off. The
display flashes and the text display appears:
Over temp.
DO NOT OPEN!
Boiler door(s) may not be opened! Overheating brings high consumption of fuel and ecological
damages.
Operating mode display while the boiler is switched off
If the fuel is used, the controller switches off the boiler automatically; however, the boiler also can
be switched off manually with the “+” button (this serves only for the security disconnection, e.g.:
no water in the boiler). Directly after switching off, the text display occures:
After 15 min. becomes the lighting of the text display) switched off.
Operating mode display while the boiler is switched off
If the fuel is consumed, the controller switches off the boiler automatically; however, the boiler also
can by hand with the button “-” switched off (this serves only for security disconnection, e.g.: when
there is no water in the boiler). Directly after switching off, the text display occures:
BOILER TEMPERATURE
°C
After 15 min. is illumination of the text display switched off.
Automatic protection functions
If the boiler is not heated within 7 days, the exhaust fan is switched on for 2 min. and the boiler is
“rinsed” with fresh air to keep it dry. At the same time, the return valve and loading valve work and
the loading pump is switched on for 10 seconds. During this process the text display indicates:
PROTECTION FUNCTION
PLEASE WAIT
After finishing the protection functions, display is automatically switched to the operating mode.
Information about current operation staten about toperating state .
The menu button“←”allows entrance into menu “Selection” in which different submenus can be
selected and the first submenu “Information” appears immediately. With the menu button “←” you
enter into submenu “Information” where you can get different information with buttons “+” and “-”.
To exit from the menu use “ ←” button; after exit it is automatically switched to operation display.
If no button is pressed for 30 min., it is automatically switched to operation display.
If error or excessive temperature appears, the menu will be left automatically. Display shows
following information: