Temperature Sensors - Viessmann PM1 Installation And Service Instructions Manual

Connecting the circulation pump
Circulation pump 400 V~
A
aVG aVG
0-10 V
1
OUT
145
145
B
0-10 V
Fig. 10
Pump module PM1
A
Vitotronic control unit
B
Circulation pump
C
Contactor
D
Circulation pump power supply 400 V/50 Hz
E
Power supply for on-site contactor
sL
ing the circulation pump power supply
0 - 10 V OUT 0 to 10 V output for control voltage for
speed control

Temperature sensors

DE1 S1 S2
aVG aVG
Fig. 11
S1 to S4 Temperature sensors for functions 1 to 7
according to setting in parameter "03" (see
chapter "Setting parameters")
Viessmann NTC 10 k
(cont.)
-
U
+
S P Ö
2
hH
-
+
-
+
External
ON/OFF
for switch-
D
S3 S4
(blue marking)
Ω
sL
?
L1 L2 L3 N PE
N L
D
L1 L2
Floating switching contact for enabling the circu-
hH
lation pump
Enable contact can be connected as N/C or N/O
contact: See fig. 4, page 8
KM-BUS cable between pump module and
aVG
Vitotronic control unit
Installation sequence
E
L3 N PE
C
13