3 Vitolig 300
23
Wiring diagram for application example 1
Connection of circulation pumps, mixer motors and low water indicator
OP − open
CL − closed
Connection temperature sensors and remote control units
Connection of solar heating components see Technical Guide for Solar Heating Systems, application example 1.
5822241 GB
L
N
Mixer motor
2
Heating circuit 2
1
N
2
X4
4
X6
5
N
6
X9
8
3
7
X2
Heating circuit pump
4
L
N
Mixer motor
2
L
N
Circulation pump for
DHW heating
9
Heating circuit pump
4
External
warning device
Emergency stop switch heating system
Low water
indicator
qP
or
escape switch
Heating circuit 1
1
N
2
X4
4
X6
5
N
6
X9
8
3
7
X2
Safety
equipment
XS/1
3
4
6
2
5
7
8
OP
N
CL
M
OP
N
CL
M
Heating circuit 2
Heating circuit 1
Connection for auto.
pellet feeder
1
2
Y3
4
Y4
5
Gnd
6
Y5
8
3
7
Y2
Y7
9
Gnd
10
11
L+
12
L−
13
Gnd
1
2
Y3
4
Y4
5
Gnd
6
Y5
8
3
7
Y2
Y7
9
Gnd
10
11
Gnd
5
6
Flow temperature sensor
Remote control
5
6
Flow temperature sensor
DHW cylinder temperature sensor
8
Remote control
Outside temperature sensor
