Viessmann Vitocal 350-A Installation And Service Instructions Manual page 92

Installation sequence
Electrical connections in the heat pump control...
Connecting the temperature limiter for limiting the maximum temperature of
underfloor heating systems
Connection with temperature limiter,
general
1X2.N
1X1.
?
A
A Connection to PCB 2, see following
table
B Temperature limiter
C Heating circuit pump A1, M2
Heating circuit
Heating circuit A1 without heating water buffer cylinder
Heating circuit A1 with heating water buffer cylinder
Heating circuit M2
92
B
M
C
1~
Connection with temperature limiter
(part no. 7151 728, 7151 729)
1X2.N
1X1.
?
A
B
A Connection to PCB 2, see following
table
B Temperature limiter
C Heating circuit pump A1, M2
Connection to PCB 2
2X8.7
2X7.9
2X8.11
(cont.)
sÖ
M
C
1~