97
PCB HKK 2.01
N
PE
Y1
Y2
PE
N
L
N
PE
M 1 ~
Y1
Y2
PE
N
Y1
Y2
PE
N
N
PE
N
PE
M 1 ~
M 1 ~
L
N
PE
L
N
PE
Fig. 64
s-Ö
Only left slot: Connection to the PCB of the boiler
control unit
dYÖ
Pump, heating circuit 1
dYA
Valve, heating circuit 1
dXÖ
Pump, heating circuit 2
dXA
Valve, heating circuit 2
dCÖ
Circulation pump for cylinder heating
or pump, heating circuit 3
or solar circuit pump
dCA
DHW circulation pump (Y2)
Note
The slot assignment of this PCB may differ subject to
the system version.
System-specific assignment:
"Heating circuit extension module" installation
instructions
Connection and wiring diagram
Heating circuit extension module (accessories)
5777 985 GB
Appendix