Viessmann VITOCAL 300-G Installation And Service Instructions Manual page 63

System example 2
2
Pt 500
[XÖ
F
Pt 500
[YD
F
Ni 500
[YS
F
Pt 500
[H
F
Ni 500
[Ö
F
Pt 500
[F
F
[G aS
X
[G aD
X
Control unit power supply
A
X3.18
X2.1
X1.1
A Mains terminals on the cross con-
nect PCB
(cont.)
Pt 500
Pt 500
L1
1/N/PE
N
230 V/ 50 Hz
?
Preparing for installation
KTS tE
VTS
zW
VTS M2 uE
STS eW
ATS 3
PTS zQ
qZ
qU
Compressor power supply
L1
L2
3/PE
400 V, 50 Hz
L3
PE
63