Modules and their functions
9
Logamatic 4321/4322 - Technical specifications are subject to change without prior notice.
66
Boiler circuit function
Manual switch for boiler loop
B
The
0
and
manual operation
positions are special
settings that should only be made by technicians.
Current functions are indicated by LEDs.
3
:
In the case of single-stage and two-stage
burning only the first stage is assigned for
basic load. For modulating burners, the
burner output can be variably increased
using
5
and reduced using
6
.
AUT:
The burner is operating in automatic mode.
0:
The burner is switched OFF.
Exception: If the switch for burner emergency
mode is set to
4
.
max I+II: The burner is operated continuously at
maximum output.
USER NOTE
The manual switch should normally be set
to "AUT".
3
:
If a boiler pump is installed, it is switched on.
The boiler loop actuator can be operated
manually.
AUT:
The boiler loop is operating in automatic
mode.
0:
If a boiler pump is installed, it is switched off.
The boiler loop actuator can be operated
manually.
Q
:
"Flue gas test" button
(explanation
Æ
Chapter 10).
