External Functions - Viessmann Vitotronic 200 Installation And Service Instructions For Contractors

Electrical connections
Connecting actuators
Extension connections for heating circuits 2 and 3, each with mixer
Plug
M2/M3
gS
Connections on the 230 V~ PCB
Plug
gS A1
M
1~
52
Fig. 19
OPEN
CLOSE
Connecting a central fault message facility
Plug
gÖ
All system faults are transferred.
L N
50
Fig. 20

External functions

Overview of external functions
Connections on the low voltage PCB
Function
One of the following functions:
External operating program changeover
■
Mixer OPEN
■
26
Component
Mixer motor
Component
One of the following functions:
Mixing valve for return temperature control
■
Mixing valve, heat exchanger set
■
Rated voltage 230 V~
Rated current Max. 0.2 (0.1) A~
Runtime 5 to 199 s
Setting runtime
The runtime can be set by means of the following
parameters:
in conjunction with plug
■
– "56" in the "General" group
– "0F" in the "DHW" group
■ in conjunction with plug
"16" in the "Heating circuit..." group
Rated voltage
Rated current
Plug
aVD
A1:
gS
M2/M3:
gS
230 V~
Max. 4(2) A~
Page
.1/ .2
aVD 27
29