Viessmann Vitotwin 300-W Installation And Service Instructions For Contractors page 13

Preparing for installation
41 HK M1
N
40
L
L
20
N
on
off
1 2
2
2
1
2
17
1
2
BSB
1
51 HK M2
N
40
L
L
20
N
on
off
1 2
2
2
1
2
17
1
2
BSB
1
61 HK M3
N
40
L
L
20
N
on
off
1 2
2
2
1
2
17
1
2
BSB
1
Required codes
Group
"System scheme"
"HC1"
"HC2"
"HC3"
"Sensor input BX6"
(cont.)
230 V/50 Hz
M
M1 43
1~
VTS M1 42
2 B
BSB
230 V/50 Hz
M
M2 53
1~
52
VTS M2
230 V/50 Hz
M
63
M3
1~
M
63
M3
1~
62
VTS M3
Code
"5700:1"
"5710:On"
"5715:On"
"5721:On"
"5935:Buffer sensor
B42"
Preparing for installation
Function
System scheme 1 as standard
function
Heating circuit 1 installed
Heating circuit 2 installed
Heating circuit 3 installed
Buffer cylinder sensor B42 fitted
13