Operation Manual

User instructions 15 – 30 – 40 EN
4
Display
A = display
B = + button
C = Set / Reset
D = Status display
E = - button
During operation, the display shows the status of the unit in
the form of a code. To be able to read the codes, open the
cover in front of the display. The display consists of three 7-
segment LED’s + three decimal points and three
pushbuttons.
The left 7-segment LED shows the status or the menu step.
The two right 7-segment LED's show the temperature, the
pressure or the parameter value.
Open the cover in front of the display to be able to read the codes on the display.
Normal operation (permanent status indication)
The Normal operation is to indicate the burner action.
- - Initialisation after restoration of supply power
O No heat demand, stand-by
C Central heating heat demand, burner off
C. Central heating heat demand, burner on
P/C. Central heating heat demand, low load water pressure
A/C. Central heating heat demand, low load chimney temperature
c Central heating pump post-running
d HWS / heating-up operation burner off
d. HWS / heating-up operation burner on
P/d. HWS / heating-up, low load water pressure
A/d. HWS / heating-up, low load chimney temperature
d. HWS / heating-up operation burner on
H Post-running of pump HWS
b Burner off / post-running of pump for external HWS cylinder
b. Burner on
P/b. Boiler, low load by water pressure
A/b. Boiler, low load by chimney temperature
O Frost protection burner off pump running 8C
o. Frost protection burner on 3C
C (flashing) Chimney function (temp display max/min/ionisation)