Vitocal 300-A Cross Connect Pcb - Viessmann VITOTRONIC 200 Service Instructions Manual

Vitocal 300-A cross connect PCB

For allocation to heat pump type: See "Overview of
PCBs".
Message and safety connections
1 / N / PE
230 V / 50 Hz
N L1
?
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
X4
F1
X3
18 17 16 15
X5
L1 L'
X7
1
12 11 10 9 8 7 6 5 4 3 2
Fig. 66
Plug-in connection ON/OFF switch (not on
A
cross connect PCB)
F1 Fuse 6.3 A (slow)
X1 Terminals X1. for earth conductors of all
?
associated system components
X2 Terminals X2.N for neutral conductors of all
associated system components
X3 Terminals for control unit power supply "L1"
■
and auxiliary components
Switched phase L1: X3.1, X3.2, X3.3, X3.7,
■
X3.11, X3.13, X3.16
■ Terminals for message and safety connec-
tions
P
14 13 12 11 10 9
P
A
N N'
2 3
N N N N N N N N N N N N N N N N
X2
1
1
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
X6
X1
PCBs and connection options
X8
5 4 3 2 1
G
8 7 6 5 4 3 2 1
F1
6.3 A (slow)
X5/X7 Terminals for connecting cable (230 V~ control
cable) to the heat pump
X6/X8 Internally assigned terminals
289