Inserting Cables/Leads - Viessmann Vitocal 300-G BW Installation And Service Instructions Manual

Installation sequence
Overview of power connections
PCB 3 (sensor PCB LP3)
X2
27 27
19
10
4 F20
3
F21
2 F22
1
F23
The terminals of PCB 3 (sensors and KM
BUS) are designated as follows:
Example: Terminal 3X2.10
3 PCB 3 (LP3)
X2. Terminal strip 2
10 Terminal 10
Connection options on PCB 3 (LP3)
■ Terminals 3X1.1 to 3X1.27
■ Terminals 3X2.1 to 3X2.27
■ Sensor terminals F0 to F23

Inserting cables/leads

When routing on-site cables/leads, observe the location of the cable entries into the
appliance on its back (see page 11).
64
X1
6 F18
5
F19
4 F20
3
F21
2 F22
1
F23
(cont.)
Note
The consecutive numbers of the termi-
nals are not the same as the sensor des-
ignation.