Viessmann CIB - External Extension (Accessories); AM1 Extension

84
AM1 extension
Fig. 47
A1 Circulation pump
A2 Circulation pump
fÖ
Power supply
fÖ
A
Power supply for additional accessories
aVG
KM-BUS
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 (only for weather-compensa-
ted control units)
Connect DHW circulation pumps with standalone
functions directly to the 230 V
∼
supply.
Select the output functions via parameter changes/
codes at the boiler control unit.
Function assignment
Function Parameter/code ("General" group)
Output A1 Output A2
DHW circulation pump
sK
33:0 34:0 (delivered condition)
Heating circuit pump
sÖ
33:1 (delivered condition) 34:1
Circulation pump for cylinder heating
sA
33:2 34:2
Function description
External extension (accessories)
5839829
Functions