Viessmann Vitocal 300 AWO-M-AC 301.A, Installation And Service Instructions Manual

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24
U Instantaneous heating water heater
control
Recommended cable: 5 x 1.5mm
2
V Power cable, instantaneous heating
water heater (if installed), max. out-
put 9 kW
Recommended cable:
230 V/50 Hz; 1/N/PE: 7 x 2.5 mm
2
W Two connecting cables, fully wired
(5, 15 or 30 m):
■
Control cable 230 V~
■ LV lead < 42 V
X Connection cables for further com-
ponents and functions (e.g. pumps,
sensors, fault messages etc.)
Y Power cable for heat pump control
unit 230 V/50 Hz
Recommended cable: 3 x 1.5 mm
2
(5 x 1.5 mm 2 with power-off by the
power supply utility)
Z Heat pump control unit
Required cable lengths:
■ For the heat pump control unit (wall
outlet centrally directly below the heat
pump control unit):
0.6 m from the wall outlet
■ Inside the heat pump (to the control
panel):
2.6 m from the top edge of the foun-
dations
Overview of possible system schemes
The following table provides an overview of all possible system schemes.
System schemes are explained using system examples (from page 25).
Preparing for installation
External heat pump type AWO-M-AC 301.A
(cont.)
5692 875 GB