Buderus Logamatic 4323 User Manual

Modules and their functions
9
Logamatic 4323 - Subject to technical modifications.
66
9.1 ZM433 central module (standard equipment level)
The ZM433 module regulates one feed pump to transfer
heat, in the case of a heat demand, from external heat
sources to the system. This module also controls one
heating circuit with mixer.
The manual switches on the module are only provided
for service and maintenance functions.
If the manual switches are not set to automatic,
a
corresponding message is displayed on the MEC2
programming unit, and the fault indicator
illuminates.
Fig. 21 ZM433 central module
1 Selecting a feed pump
2 Heating circuit with mixer
1
2
Display General fault, e.g. on-site fault,
sensor fault, external faults,
wiring fault, internal module
fault, manual mode.
The fault messages are
displayed as plain text on the
MEC2 programming unit.
LEDs for the functions
Display "Mixer opens" (hotter)
Display "Mixer closes" (colder)
Display Heating circuit in summer
mode
Display Feed or heating circuit pump
runs
USER NOTE
Never use the manual switches to switch
off the system when you have to
temporarily leave the installation.
Use the holiday function for this purpose
(Æ
Chapter 7.16).

Buderus Logamatic 4323 Specifications

General

Brand	Buderus
Model	Logamatic 4323
Category	Control Unit
Language	English