Viessmann VITOCAL 111-S - Page 45

45
Plug
sXF
Terminals Function Explanation
224.4
r
2.
Control of an instantaneous heating
water heater, stage 2
Note
For heat pumps with integral instan-
taneous heating water heater con-
nected at the factory
Supply values:
■
Output: 10 W
■
Voltage: 230 V~
■
Max. switching current: 4(2) A
Instantaneous heating water heater
Type AWBT(-M)-AC: Accessories
Installation instructions, instantaneous heating
water heater
Control and power circuit of the instantaneous
heating water heater
211.3
224.4
X2.N
N
L3
L2
L1
?
!
?
A
B
Fig. 39
A
Instantaneous heating water heater
B
Connection to the main PCB and expansion PCB
211.3 stage 1
224.4 stage 2
Plug
sXG
Terminals Function Explanation
225.1
M2
r
Heating circuit pump of the heating
circuit with mixer M2/HC2
Connect a temperature limiter to restrict the maximum
temperature for underfloor heating circuits (if installed)
in series.
Connection values:
■
Output: 100 W
■
Voltage: 230 V~
■
Max. control current: 4(2) A
225.2
M2
Mixer motor control, heating circuit
M2/HC2
Mixer closed signal
Connection values:
■
Output: 10 W
■
Voltage: 230 V~
■
Max. control current: 0.2(0.1) A
225.3
M2
Mixer motor control, heating circuit
M2/HC2
Mixer open signal
Connection values:
■
Output: 10 W
■
Voltage: 230 V~
■
Max. control current: 0.2(0.1) A
Installation sequence
Electrical connection (cont.)
6199592
Installation