External Extensions (Accessories); Extension Am1 - Viessmann VITODENS 200-W Installation And Service Instructions Manual

Function description

External extensions (accessories)

Extension AM1

Fig.67
A1 Circulation pump
A2 Circulation pump
Power supply
fÖ
Functions
One of the following circulation pumps can be connec-
ted to each of the connections A1 and A2:
Heating circuit pump for the heating circuit without
■
mixer
■ Circulation pump for cylinder heating
■ DHW circulation pump
Function assignment
Function
DHW circulation pump
sK
Heating circuit pump
sÖ
Circulation pump for cylinder heating
112
A Power supply for additional accessories
fÖ
aVG
Select the output functions by means of the codes on
the boiler control unit.
Output A1
33:0
33:1 (delivered condition)
33:2
sA
KM BUS
Code ("General" group)
Output A2
34:0 (delivered condition)
34:1
34:2