Buderus Logamatic 4211 User Manual

Modules and their functions
9
Logamatic 4211 - Subject to technical modifications.
67
9.2 FM442 function module (accessory)
The FM442 module regulates two independent heating
circuits with mixer. Several of these modules can be
used in one control unit.
The switches on the module only have service and
maintenance functions and only affect 230 V outputs.
If the switches are not set to automatic, a corresponding
message appears on the MEC2 programming unit, and
fault indicator
illuminates.
The control functions remain operational in manual
mode.
Heating circuit function
Heating circuit switch
e.g. for heating circuit 1 and 2
The positions 0 and (manual mode) are special
settings reserved for heating contractors only.
Current functions are indicated by LEDs.
Fig. 22 FM442
Display General fault;
e.g. on-site faults, sensor faults,
external faults,
wiring faults, internal module faults,
manual mode.
The fault messages appear
as plain text on the
MEC2 programming unit.
LEDs for the following functions:
Display "Mixer opens" (hotter)
Display "Mixer closes" (colder)
Display Heating circuit in summer mode
Display Heating circuit pump operational
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, set the switches to
"AUT".
The heating circuit pump is switched on. The
mixer is switched volt-free and can be manually
operated.
AUT: The heating circuit operates in automatic mode.
0: The heating circuit pump is switched off. The
mixer is switched volt-free. The control functions
remain active.
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Buderus Logamatic 4211 Specifications

General

Brand	Buderus
Model	Logamatic 4211
Category	Control Unit
Language	English