Buderus Logamatic 4211 User Manual

Modules and their functions
9
Logamatic 4211 - Subject to technical modifications.
65
9.1 ZM422 central module (standard equipment level)
The ZM422 module is part of the basic equipment of the
Logamatic 4211 control unit. The switches on the
module are only provided for service and maintenance
functions.
If the switches are not set to automatic, a corresponding
message appears on the MEC2 programming unit and
fault indicator
0 illuminates.
The control functions remain operational in manual
mode.
Burner function
Switch for burner
2
Positions 0, manual and max I + II are special settings
reserved for heating contractors.
The burner may be directly controlled with the switch.
Fig. 21 ZM422
Display
0
General fault;
e.g. on-site faults, sensor faults,
external faults,
wiring faults, internal module faults, manual
mode.
These fault messages appear
as plain text on the
MEC2 programming unit.
LEDs for burner functions
Display
9
Burner fault
Display
A
Burner operational
Display
U
Modulation output is increased/2. Stage
operational
Display
V
Modulating output is lowered
LEDs for heating circuit 0 and DHW functions
Display
1
Boiler circuit 0 in summer mode
Display
8
Heating circuit 0 or boiler pump operational
Display
8L
Cylinder primary pump operational
Display
8Z
DHW circulation pump enabled
Z
L
USER INFORMATION
Never use the switches to shut down the
heating system during temporary absence.
Use the holiday function for this purpose
(Æ chapter 7.16).
USER INFORMATION
In standard mode, the switch should be set
to "AUT".

Buderus Logamatic 4211 Specifications

General

Brand	Buderus
Model	Logamatic 4211
Category	Control Unit
Language	English