Wolf SM2 Installation And Operating Instructions Manual page 18

System configuration 3:
Mains
230 V
AC
Solar circuit
pump SKP1
Solar cylinder 1
18
Electrical connection
Dual-circuit system with two solar cylinders in parallel
operation
Solar circuit
pump SKP2
DHW
circulation
pump ZKP
(option)
Solar Return
sensor sensor
cylinder 1
SFS1
Solar
sensor
collector
SFK1
Collector
RLF
Flow rate
generator
DFG cylinder 2
Solar cylinder 2
3062438_0309
Solar
sensor
SFS2