Instruction manual

off by the flue gas sensor temperature decreases for 25% within 15 minutes, the boiler is

switched off.

The STB is started Residual warmth off-take is stopped, if the boiler temperature

is < 85°C. If, then, the boiler temperature increases to > 86°C,

usage of residual warmth starts again.

Function of switching contact When the boiler is switched on: WK/AK is closed

When the boiler is switched off and flue gas temperature is

<100°C: WK/RK is closed

Error of CPU All relays are turned off by Hardware Watchdog

Antifreeze protection When the boiler is switched off and the temperature is < 7°C:

Start of connecting pump, Y1 a Y2 = 100%.

If boiler temperature increases to > 8°C, connecting pump is

stopped.

Y1=0%, Y2= 100%.

Protection of flue gas fan and

of flue gas sensor against

overheating

Flue gas temperature > 350°C, flue gas fan is stopped

Flue gas temperature < 299°C, flue gas fan is switched on

Short circuit of the „+“ button Button of regulator does not react, even not to significant

pressure

Enter function (Menu) After safety time, the menu automatically expires

Safety test It takes max. 30 min and finishes automatically or it is aborted,

if: boiler temperature is > 110°C or the „+“ button was not

pressed for 30 seconds

Operation range of automatic

setting of C.H. return

connection to determined

value

Between 60°C and 80°C

Operation without settings

controlled by technician

Regulator is adjusted after setting by producer

Data storaging Only by sufficient energy > 160V.