Internal Unit: Routing The Cables To The Wiring Chamber - Viessmann VITOCAL 222-S Installation And Service Instructions Manual

Installation sequence
Electrical connection

Internal unit: Routing the cables to the wiring chamber

Fig. 25
Power cables to switching module for instantane-
A
ous heating water heater 230 V~/400 V~
Connecting cables for 230 V~ components
B
LV connecting leads (sensors, KM BUS) < 42 V
C
Type AWT/AWT-AC 221.A10/A13, 221.B10 to
D
B16:
BUS cable 12 V: Routing in the 230 V~ voltage
area (for connection, see page 40)
32
(cont.)
400/230 V
> 42 V
< 42 V
Type AWT/AWT-AC 221.A04 to A07:
E
BUS cable 43 V: Routing in the 230 V~ voltage
area (connection, see page 40)
Heat pump control unit 230 V~ power cable
F