Modules and their functions
9
Logamatic 4321/4322 - Technical specifications are subject to change without prior notice.
68
Heating zone and DHW consumer
Heating zone manual switch (
Æ
Fig 23, [1]) and DHW
(
Æ
Fig. 23, [2]):
Positions 0 and
3
(manual)
are special settings
reserved for contractors only.
Current functions are indicated by LEDs.
Fig. 23
FM441 function module
1
Manual heating zone switch
2
DHW manual switch
1
2
for heating zone:
for DHW supply:
USER NOTE
The manual switch should normally be set
to "AUT".
3
:
The heating pump or tank primary pump is
switched on.
The mixing valve is switched to zero volt
and can be manually operated.
The DHW recirculation pump is switched
off.
AUT:
The heating zone or DHW consumer
operates in automatic mode.
0:
The heating pump or tank primary pump as
well as the DHW recirculation pump are
switched off.
The mixing valve is switched to zero volt.
The control functions continue to operate.
