52
Plug
sYS
Terminals
Function
Explanation
212.3
DHW circulation pump
Connection values
■ Output: 50 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
212.4
Solar circuit pump with high
limit safety cut-out (max. 95
°C) for DHW cylinders
Connection values
■ Output: 130 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
Connect the high limit safety cut-out to
the solar circuit pump
in series
(see high
limit safety cut-out installation instruc-
tions).
Connecting a temperature limiter as a maximum temperature limiter for under-
floor heating
Connecting a general temperature
limiter
B
M
1~
C
B
X2.N
?
A
X1.
Connecting the temperature limiter,
part no. 7151 728, 7151 729
B
M
1~
C
B
sÖ
X2.N
?
A
X1.
Installation sequence
Electrical connection
(cont.)
5623 661 GB
