Viessmann KWT BW 301.B090, Installation And Service Instructions Manual

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43
Message and safety connections (safety chain) with distribution terminal
L1 L1
L2 L2
L3 L3
PE N N PE
PE N N PE
PE N N PE
PE N N PE
PE N N PE
PE N N PE
PE N N PE
16 16 16 16 16 16
N N N N N N
L1 2X8 L1
N
2X8
N
PE
2X3
PE
L1 3X8 L1
N 3X8 N
PE
3X8
PE
PE
X1
PE
220 K2
220.2
220
220 K2
220.3
220
1 STB 1
2
STB
2
10 X3 10
11 X3 11
12 X3 12
13 LP1 13
16 LP1.X3 16
N
LP1.X2
N
3 LP1
X3 3
4 LP1
X3 4
2
LP1
X3
2
14 LP1
X3 14
6 LP1
X3 6
7 LP1
X3 7
PE X1 PE
5 St.
X3 5
6
St.
X3
6
8 LP1
X3 8
9 LP1
X3 9
PE X1 PE
223
St.
223.1
223
223 St.
223.2
223
116 K1
116.1
116
116 K1
116.2
116
116 K1
116.3
116
116 K1
116.4
116
116 K1
116.5
116
116 K1
116.6
116
16 LP1
X3 16
N
LP1
X2
N
3 K1
X3 3
4 K1
X3 4
116 K2
116.1
116
116 K2
116.2
116
116 K2
116.3
116
116 K2
116.4
116
116 K2
116.5
116
116 K2
116.6
116
16 LP1
X3 16
N
LP1
X2
N
3 K2
X3 3
4 K2
X3 4
Fig.34
■ Set the required parameters during commissioning; see from page 57.
■ Connections, see separate "Connection and wiring diagram" sheet 13, sheet 21.
Message and safety terminals
Terminals
Function Explanation
PE/X1. Earth conductor Terminals for earth conductors of all associated system
components
LP1.X2.N Neutral conductor Terminals for the neutral conductor of the heat pump
control unit.
Factory-fitted
LP1.X3.16 Phase L1 Control unit power supply
Factory-fitted
Installation sequence
Overview of electrical connections
(cont.)
5549 984 GB
Installation