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

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Power cable to control panel B
Outside the building, run the power cable
to control panel
B as an earth cable
(NYY), or route a NYM cable inside a KG
conduit.
Observe the regulations imposed by
your local power supply utility.
Cable length required in the heat pump
from top edge of foundation: min.
2.6 m.
Connecting cables D
Route prepared cables/leads (control
cable 230 V~ and LV lead < 42 V)
D
inside a KG conduit DN 100. Protect the
plugs at the ends of the cables from dirt
and damage (e.g. with bubble wrap).
Routing KG conduits
■ Provide a wire pull for connecting
cables
D
.
■ To facilitate the routing of cables D
through the KG conduit, avoid 90º
bends; instead use 3 x 30º or 2 x 45º.
■ Route the KG conduit with a fall
towards the heat pump and fit a con-
densate drain if required.
■ Ensure on-site wall duct I is mois-
ture-proof and waterproof.
■ Seal the apertures of the KG conduit
so that no animals or moisture can
enter the building.
Preparing for installation
External heat pump type AWO-M-AC 301.A
(cont.)
5692 875 GB