Operating manual
DHR - classic DHR - comfort DHR - expert
20
4.11
Displaying the controller output ports
Depending on the state of the unit and the operating mode, some of these symbols
will be shown.
Symbol
Designation
heating circuit/generator
(1=green; 2=red)
DHR - classic DHR - comfort DHR - expert
1
green
2
red
1
green
2
red
Modulation heat gene-
rator
FA
X
X
X
X
X
Generator I or
burner stage I
b1
X
X
X
Burner stage II
b2
X
X
X
Heating circuit mixing
valve open
M+
X
X
X
X
Heating circuit mixing
valve closed
M-
X
X
X
X
Heating circuit circula-
tion pump
U
X
X
X
X
X
Charging pump/deflec-
tor valve
L
X
X
X
Circulation pump DHW
C
X
