Viessmann Vitodens 300 Service Instructions Manual page 32

Initial start-up, inspection, maintenance
Further details regarding the individual steps
Boiler control Vitotronic 050
unit
User no. 1 User no. 10
Code 77:1 Code 77:10
Control unit is Control unit is not
* 1
fault manager fault manager
Code 79:1 Code 79:0
Sent time via LON Time received via
Code 7b:1 LON
Set code 81:3
Transmit outside Outside tempera-
temperature via ture is received via
LON LON
Set code 97:2 Set code 97:1
Fault monitoring Fault monitoring
LON user code LON user code
9C:20 9C:20
Implementing a user check (in conjunction with the LON sys-
tem)
Communication with the system devices connected to the fault manager is
tested with a user check.
Preconditions:
&
The control unit must be encoded as fault manager (code 79:1).
&
The LON user number must be encoded in all control units (see page 31).
&
The fault manager user list must be up to date (see page 31).
In each heating system, only one Vitotronic may be encoded as fault manager.
*1
32
Vitotronic 050
User no. 11
Set code 77:11
Control unit is not
* 1 *
fault manager
Code 79:0
Time received via
LON
Set code 81:3
Outside tempera-
ture is received via
LON
Set code 97:1
Fault monitoring
LON user code
9C:20
(cont.)
Vitocom
User no. 99
Control unit is
fault manager
1
Time received
via LON
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