Viessmann Vitotronic 200 Installation And Service Instructions For Contractors page 122

Function description
AM1 extension (accessories)
Fig. 52
A1 Circulation pump
A2 Circulation pump
Power supply
fÖ
Functions
One of the following circulation pumps can be connec-
ted to each of connections A1 and A2:
■ Heating circuit pump for heating circuit without mixer
Circulation pump for cylinder heating
■
DHW circulation pump
■
Connect DHW circulation pumps with standalone
functions directly to the 230 V
Function assignment
Function
DHW circulation pump
sK
Heating circuit pump A1
sÖ
Circulation pump for cylinder heating
Neutralising system, flue gas/water heat ex-
changer sÖ A1
Distribution pump
sL
122
∼
supply.
Output A1
31:0
31:1 (factory setting)
sA 31:2
31:3
31:4
Do not adjust
A Power supply for additional accessories
fÖ
KM-BUS
aVG
Select the output functions via the parameters on the
boiler control unit.
Parameter ("General" group)
Output A2
32:0 (factory setting)
32:1
32:2
32:3
32:4
Do not adjust