11
Symbols on the display
These symbols are not always dis-
played, but appear subject to the sys-
tem version and the operating status.
on
°C
0
pm
0
Ⅰ
Ⅱ
p
%
MPa
A B C D EF G H
K
L
M
N
ORSTU
V
W
P
Displays:
A
Winter mode is active.
B
Summer mode is active.
C
Standby mode is active.
D
Time program is active.
E
Flashes while a time program is
being set.
F
Lights up or flashes when a room
temperature sensor is connected
(accessories).
G
External extension is active, solar
circuit pump (accessories).
H
An external extension for the con-
trol unit is connected (accessories).
K
Outside temperature sensor is con-
nected (accessories).
L
Main display with measuring units
corresponding to the value dis-
played
M
Frost protection is active.
N
Fault display, carry out a reset.
O
Fault display, notify your heating
contractor.
P
DHW heating is active or not active
within a time program.
R
Operating status
S
Additional display, showing
for example the time in standby
mode.
T
Service setting is active.
U
Burner is operational.
Operation
Programming unit
(cont.)
5837147
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