Preparing For Installation; Product Information; General Information - Electrical Connection - Viessmann Vitocal 300-A Series Installation And Service Instructions Manual

Preparing for installation

Product information

Type AWCI-M-AC 301.A
Reversible air/water heat pump with inte-
gral circulation pump (secondary pump),
3-way diverter valve and safety assem-
bly.
Type AWO-M-AC 301.A
Air/water heat pump without integral cir-
culation pump (secondary pump) or 3-
way diverter valve. A secondary pump
assembly (secondary pump and circula-
tion pump for cylinder heating) is availa-
ble as an accessory.

General information - electrical connection

■ Connecting cables from control
panel – heat pump control unit:
Observe information from page 63.
■ Electrical connection of system
components (pumps, mixers, valves,
alarm facilities, contactors, function
extensions, sensors, etc.):
These connections are made inside
the heat pump control unit. Observe
information from page 71.
■ Power supply:
The number of power cables from the
distribution board (meter box) to the
heat pump control unit and to the con-
trol panel depends on the system ver-
sion and tariffs used.
These connections are made inside
the heat pump control panel. Observe
information from page 97.
6
The 4 red cores in the heat pump control
unit must be removed for the external
circulation pumps to be connected (see
page 75).