Viessmann VITOCAL 100-S - Page 40

40
Plug
sYA
Terminals Function Explanation
211.4
M
r
■
3-way diverter valve "central heat-
ing/DHW heating"
Supply values
■
Output: 130 W
■
Voltage: 230 V~
■
Max. switching current: 4(2) A
Note
Depending on the system design, not all components
are available.
■
Cylinder loading pump
M
■
2-way shut-off valve
211.5
AC
Only for heat pumps with a cooling
function:
3-way diverter valves for heating wa-
ter buffer cylinder bypass in cooling
mode
Connect the 3-way diverter valves in parallel.
Supply values
■
Output: 10 W
■
Voltage: 230 V~
■
Max. switching current: 4(2) A
Plug
sYS
Clamps Function Explanation
212.2
A1
Heating circuit pump for heating cir-
cuit without mixer A1/HC1
■
This pump is connected in addition to the secondary
pump if a heating water buffer cylinder is installed.
■
Connect the temperature limiter to restrict the maxi-
mum temperature for underfloor heating systems (if
installed) in series.
Connection values
■
Output: 100 W
■
Voltage: 230 V~
■
Max. switching current: 4(2) A
212.3 DHW circulation pump Connection values
■
Output: 50 W
■
Voltage: 230 V~
■
Max. switching current: 4(2) A
212.4 3-way diverter valve for heating water
buffer cylinder bypass or heat pump
in the case of dual alternative mode
Connection values
■
Output: 130 W
■
Voltage: 230 V~
■
Max. switching current: 4(2) A
Connecting a temperature limiter as a maximum temperature limiter for underfloor heating
Connecting a general temperature limiter B
M
1~
C
B
X2.N
?
A
X1.
Fig. 34
Connecting the temperature limiter, part no. 7151728,
7151729
B
M
1~
C
B
sÖ
X2.N
?
A
X1.
Fig. 35
Installation sequence
Electrical connection (cont.)
6199585
Installation