External Connections At Plug Avd; Pellet Charger; Accessories - Viessmann VITOLIGNO 300-P Installation Instructions Manual

Making the electrical connections

External connections at plug aVD

1 2 3
143
A External demand/changeover of
heating program/external "Mixer
open"
(zero volt contact)
B External blocking/external "Mixer
close"
(zero volt contact)

Pellet charger

Service instruction of the boiler
(connection and wiring diagram)
and installation instructions of the
supply system

Accessories

Information regarding the con-
nection of accessories
For the connection, observe the
installation instructions provided
with the accessories.
20
(cont.)
A
B