Viessmann Vitolig
200 Technical Manual page 26

3 Vitolig 300
Wiring diagram for application example 2
Connection of circulation pumps, mixer motors and low water indicator
XS/1
2
3
4
5
6
External
7
warning device
8
1 X2
2
N
3
4 X4
5 X6
6
N
7
8 X9
1 X2
2
N
3
4 X4
5 X6
6
N
7
8 X9
1 X6
2 N
OP − open
CL − closed
Connection temperature sensors and remote control units
1 Y2
2
Gnd
3
4 Y3
5 Y4
6
Gnd
7
8 Y5
9 Y7
10
Gnd
11
Connection for auto.
12 L+
pellet feeder
13 L−
1 Y2
2
Gnd
3
4 Y3
5 Y4
6
Gnd
7
8 Y5
9 Y7
10
Gnd
11
1 Y2
2 Gnd
3
4
Connection of solar heating components
26
Emergency stop switch
Low water
indicator eT or
escape switch
L
Heating circuit pump 7
N
N
Circulation pump for
DHW heating 5
L
OP Mixer motor qQ
M
N
CL
L
Heating circuit pump 7
N
OP Mixer motor qQ
M
N
CL
L
Boiler circuit pump 3
N
Flow temperature
sensor
DHW cylinder temperature sensor qE
Outside temperature sensor
6
Remote control
5
Flow temperature sensor
6
Remote control
5
Buffer temperature sensor qR
see Technical Guide for Solar Heating Systems, application example 1.
heating system