Viessmann NC-Box User Manual

26
1
42
2 3 4
X4
K1 K2
R1
D1
S1
K1
1 2 3 41
X3
1
42
K5
L N
3 2 14
X2
K5
F1 T6,3A
X5
1 NL
M 1~
M 1~
1 NL
M 1~
M 1~
L N L N
X1
+24V
C1
230V
D4 D6 D3 D5
4 3 1 2
D2 R2
K2
S2
lJ lJ sÖ sÖ
C D
L N
Fig.13
A
Contact humidistat 24 V–/10 mA
B
Frost stat 230 V~/1 A
C
NC-Box switching (NC signal)
D
Power supply 1/N/PE 230 V/50 Hz
E
Frost protection valve (brine)
F
3-way diverter valve (heating/cooling)
G
Primary cooling circuit pump
H
Secondary cooling circuit pump
Connection and wiring diagram
Connection and wiring diagram
5675 869 GB
Appendix

Viessmann NC-Box Specifications

General

Brand	Viessmann
Model	NC-Box
Category	Heating System
Language	English