Atmos
Heating Systems
Installation and user manual EN_FMT
30
Display
Open the cover in front of the
display to be able to read the
codes.
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.
Furthermore, the display has three buttons:
•
“Set/Reset button”
•
“ - button”
•
“ + button”
Reset button
This is to rest the unit, should it be locked by a malfunction.
The user must use button. The installer should only be called
when the same malfunction occurs repeatedly.
Abbreviated display indications
Display during normal operation (permanent)
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
c
Central heating pump post-running
d
Heat HWS, burner off
d.
Heat HWS, burner on
b
Heat external storage vessel, burner off
b.
Heat external storage vessel, burner on
o
Frost protection, burner off
o.
Frost protection, burner on
Display of blocks (permanent)
1
Flow sensor interrupted
1.
Flow sensor short circuited
2
Return sensor interrupted
2.
Return sensor short circuited
4
Flue gas sensor interrupted
6
Cold water sensor interrupted
6.
Cold water sensor short circuited
A
Flue gas temperature > 80°C
H
Flow sensor > 105°C
E
Internal blocking fault
P
Pump test / Start function blocking / Water
pressure
nc
Burner Manager fault (can only be reset by
switching voltage on/off)
Display of locks (flashing)
1
Flow/Return sensor fault
2
Too many restarts
3
Internal regulation fault / A/D conversion fault /
external sensor fault
5
Fan fault
7
Gas valve fault
8
Flame detected with closed gas valve
A
Flue gas temperature > 95°C
E
Internal interlock fault
H
Flow sensor > 105°C with burner on
F
Too many ignition attempts
An interlock (flashing) can only be unlocked by
pressing the set/reset button.
