Buderus Logamatic 4122 User Manual

Modules and their functions
9
Logamatic 4121, 4122 and 4126 - Subject to technical modifications.
71
Heating circuit and DHW function
Switch heating circuit and DHW
The positions 0 and manual (3) are special settings
reserved for heating contractors only.
LEDs indicate the current function status.
for heating circ. 1:
w
for heating circ. 2:
B
USER INFORMATION
In standard mode, set the switch to "AUT".
: The heating circuit pump is switched on.
The mixer is switched to zero volt and can
be
manually operated.
AUT: The central heating or DHW circuit operates
in automatic mode.
0: The heating circuit pump and possibly the
cylinder primary pump as well as the DHW
circulation pump are stopped.
The mixer is switched to zero volt.The control
functions continue to operate.
3 + X: The heating circuit and cylinder primary
pumps start when "4000 cylinder" has been
selected in the "DHW" menu (Æ
service
instructions).
3

Buderus Logamatic 4122 Specifications

General

Brand	Buderus
Model	Logamatic 4122
Category	Control Unit
Language	English