Connecting Pumps - Viessmann Vitotronic 300 GW6B Installation Instructions Manual

Vitotronic 300, GW6B Installation and Service

Connecting Pumps

Legend
A Pumps
B To the control unit
Rated voltage
Rated current Max.
Note: Maximum output 6FLA shared between all
120V outputs.
Pumps 120V
Available pump connections
sÖM1/A1 Heating circuit 1 pump
sÖM2 Heating circuit 2 pump
sÖM3 Heating circuit 3 pump
DHW pump
sA
sK DHW recirculation pump
sL Boiler pump
120V~
2A~
Available connections
Connections on extension for heating circuit with mixing
valve HC2/M2, HC3/M3
Plug Terminal
5 L, N, G
sÖ M2
6 L, N, G
sÖ M3
Connections on the PCB 120V~
9 L, N, G
sÖA1
8 L, N, G
sA
7 L, N, G
sK
10 L, N, G
sL
Electrical Connections
Component
Heating circuit pump
Heating circuit pump
Heating circuit pump
for heating circuit A1
or
Primary pump,
primary store system
DHW pump
DHW recirculation
pump
boiler pump, system
pump
31