Viessmann VITOCAL 300-A Installation And Service Instructions Manual page 24

Preparing for installation
External heat pump type AW-O-M
Connecting cables
A Condensate drain (on site)
B Foundations for the heat pump
C Electrical connecting cable (con-
trol cable) 230 V~, control unit/
heat pump (accessories)
D Electrical connecting cable (LV)
< 42 V, control unit/heat pump
(accessories)
E Hydraulic connection lines (con-
nection set, accessory)
F Power supply cable to the control
panel (on site)
Required cable length inside the
heat pump: min. 2.50 m
24
(cont.)
G Moisture-proof and waterproof
wall ducts (on site)
H Pipe liner with wall seal flange for
hydraulic connection line (acces-
sory)
K KG conduit DN 100 for external
connections, control unit/heat
pump (on site)
L Maintain the max. distance
between electrical connecting
cable (LV cable < 42 V) D and
power supply cable to the control
panel F