52
L1
L2 L3 N
GND Rx/Tx-Rx/Tx+
Modbus
?
B
A
L1
L2 L3 N
?
Fig. 49
A
Outdoor unit wiring chamber: See page 19.
B
Power supply 400 V/50 Hz
Max. cable length
Vitocal 222-S
Type
Cable
Max. cable length
400 V appliances
■
AWBT
■
AWBT-E
■
AWBT-E-AC
221.C10
5 x 2.5 mm
2
30 m
221.C13
5 x 2.5 mm
2
30 m
221.C16
5 x 2.5 mm
2
30 m
Max. fuse rating
Type AWBT/AWBT-E/AWBT-E-AC
221.C10
221.C13
221.C16
Max. fuse rating
16 A
16 A
16 A
Instantaneous heating water heater power supply
■
Type AWBT(-M)-E/AWBT(-M)-E-AC 221.C:
Factory-fitted
■
Type AWBT(-M) 221.C:
Accessories
Installation sequence
Power supply
(cont.)
51
17 700 GB
Installation
