115
AM1 extension
Fig. 85
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 the connections A1 and A2:
■
Heating circuit pump for the heating circuit without
mixer
■
Circulation pump for cylinder heating
■
DHW circulation pump
Connect DHW circulation pumps with standalone
functions directly to the 230 V
∼
supply
Select the output functions by means of the codes on
the boiler control unit.
Function description
External extensions (accessories)
5773 238 GB
Functions