Buderus Logamatic 4323 - Page 17

Modules and their functions
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Logamatic 4323 - Subject to technical modifications. 17
U terminals 3 (-) and 4 (+), 0 – 10 V output
Via terminals U 3 and U 4 on the ZM433 central module,
a 0 – 10 V signal can be supplied externally to provide
a
set value.
This would be the maximum system flow temperature
for
all connected heating circuits.
Strapping plug J1
Alternatively, the set value can also be issued as
0 – 20 mA signal.
The strapping plug (jumper) J1 should then
be
repositioned from to .
Fig. 11 U terminals 3 and 4
x Set flow temperature in °C (factory setting)
y 0 – 10 V input in V