Viessmann Vitocal 350-A Installation And Service Instructions Manual page 28

Preparing for installation
External heat pump type AWH-O
Underground cable routing
R
P
D Two connecting cables inside KG
conduit DN 100 (on site), fully wired
(5, 15 or 30 m):
■ Control cable 230 V~
■ Low voltage cable < 42 V
P Hydraulic connection lines
R Power cable for compressor/fan
(400 V/50 Hz; 3/N/PE)
Recommended cable: 5 x 2.5 mm
U Moisture-proof and waterproof wall
ducts (on site)
V Pipe liner with wall seal flange for
hydraulic connection line (acces-
sory)
28
2 0
≥ 1
D U V
(cont.)
R
0 0
3 0
≤ 2
0
X
W
P
X
R
400
W Route connecting cable (LV cable
< 42 V) D and power cable to con-
trol panel R as far apart as possi-
ble.
X Underground channel
Y Condensate drain (on site)
Z Foundations for the heat pump
2
P
D
Z
Y
D