134
AM1 extension
Fig. 78
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 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 via parameters at the boiler
control unit.
Function assignment
Function
Parameter ("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 extensions (accessories)
5789 302 GB
Functions
Summary of Contents for B2TB
Page 6: ...6 15 Keyword index 152 Index Index cont 5789 302 GB ...
Page 117: ...117 Parts lists Hydraulics 5789 302 GB Components ...
Page 154: ...154 5789 302 GB ...
Page 155: ...155 5789 302 GB ...