Overview Of Electrical Connections And Plug-In Connectors - Viessmann Vitodens 200 WB2 11-44 Installation Instructions Manual

Electrical Connections

Overview of electrical connections and plug-in connectors

Vitodens built-in junction box for circulation pumps
20 20A 21 40
Control unit
Low voltage connections
Line voltage connections
(230, 60 Hz) from Power/Pump
Module
Remote control WS/RS
External switching of heating
program/External heat demand
*1
Alarm output
*1
An expansion board is required for connection purposes. Direct connection is not permitted. Please contact Viessmann to order an
expansion board (optional).
X3B X3A X4
100
X3 X4 X5
1 2 3 1 2 3 4 1 2 3 4 1
Extension kit for heating circuit with
mixing valve
Vitotronic 050/Dekamatik-HK1
control unit
Wall-mount base
External burner disable
Outdoor temperature sensor
a
b
c
X6 X7 X2
2 3 4 1 2 3 4
1 2 3
O P Q
O
P
R
Q
Control Connections
Boiler circuit pump
Heating circuit pump
Circulation pump for DHW tank
heating
N L
R
DHW tank temperature sensor
Low-loss header temp. sensor
Power supply connection
from Power/Pump Module
(230 VAC, 60 Hz)
Not used
35