Viessmann VITOCAL 242-S Installation And Service Instructions Manual page 57

Power supply
(cont.)
External unit power supply 400 V~
!
Please note
Incorrect phase sequence can
cause damage to the appliance.
Make the compressor power sup-
ply only in the phase sequence
specified (see terminals) with a
clockwise rotating field.
Type AWT-AC 241.B10 and B13
C2 C1
N L ? N L3
?
A
? N
Type AWT-AC
Recommended power cable
Fuse protection
L2L1
L3 L2 L1
B
241.B10
5 x 2.5 mm
Installation sequence
A Wiring chamber, external unit: See
page 52.
B Power supply 230 V/50 Hz
241.B13
2
(max.
30 m)
B16A
2
5 x 2.5 mm (max.
30 m)
B16A
57