Viessmann Vitotwin 300-W Installation And Service Instructions For Contractors page 31

Preparing for installation
11 KKR FSK
X1.5 N
X1.6
X1.7 L
X3.6 N
X2.4
X3.5 L
PROG
PROG1
X4.4
X4.3
X4.2
X4.1
31 SD1
L 21
N 20
15
R1 19
N 18
14
R2 17
N 16
13
12
145
11
10
PWM
9
6
S3
5
4
S2
3
2
S1
1
(cont.)
230 V/ 50 Hz
M
KKP 15
1~
AGS
13
KTS
12
230 V/ 50 Hz
M
UV / R1 32
1~
2 A
X5 / EX2
SOL 34
33
KOL
Preparing for installation
31