Connecting The Extension Kit To The Control Unit - Viessmann Divicon Series Installation Instructions Manual

Extension kit with mixer PCB
!
Please note
Electronic modules can be dam-
aged by electrostatic charges.
Before beginning work, touch
earthed objects, such as heating
or water pipes, to discharge
static loads.

Connecting the extension kit to the control unit

Connecting the Vitotronic 300, type
KW3
Danger
Incorrect core assignment can
result in serious injury and dam-
age to the appliance.
Take care not to interchange
wires "L1" and "N".
A
1 2
S1
145
aVG
A Extension kit
B To the control unit
S1 For rotary selector position, see the
following table
B
N L
40
fÖ
(cont.)
Note
Apply a strain relief to all on-site cables.
Close any unnecessary knockouts with
cable grommets (not cut open).
aVG KM-BUS to the control unit or to
the KM-BUS distributor (accesso-
ries)
aBH Power supply via control unit or
via power distributor (accesso-
ries)
23