Viessmann Vitodens 300 Service Instructions Manual page 50

Coding
Code 2
(cont.)
Coding in Function mode
the as
delivered
condition
Address:
value
73:0 * 1 DHW circulation
pump: ON according to
time program
General
76:0 Without LON communi-
cation module
77:1 LON user number
79:1 Control unit is fault
manager
* 1
7b:1 Send time to LON
* 1
7E:0 * 2 Without flue gas cas-
cade
7F:1 * 2 Detached house
*1
Only for weather-compensated control units.
*2
Only for constant temperature control units.
50
Coding Possible change
change
Address:
value
73:1 During the time program
to 1x/h ON for 5 minutes
73:6 up to 6x/h ON for 5 min-
utes
73:7 Constantly ON
76:1 With LON communication
module; automatic recog-
nition
76:2 With KM BUS/cascade
communication module;
automatic recognition
77:2 LON user number, adjus-
to table from 1 to 99:
77:99 1 - 4 = boiler
5 = cascade
10 - ... = Vitotronic 050
99 = Vitocom
Note
Allocate each number
only once.
79:0 Control unit is not fault
manager
7b:0 Do not send time to LON
7E:1 With flue gas cascade
7F:0 Multi-occupancy house
Separate adjustment for
holiday program and time
program for DHW load-
ing, as option