Viessmann Vitoligno 300-C Installation And Service Instructions Manual page 78

Codes
Code 1
Calling up code 1
!
Please note
An operating error at the "coding levels" may
result in damage to the boiler and the heating
system.
Follow the instructions in chapter "Codes".
Press the following buttons:
1. d + simultaneously for approx. 4 s.
å
The "Service" menu appears.
2. / for "Code 1".
| ~
3. to confirm.
d
4. / for the required group.
| ~
5. to confirm.
d
Overview of coding level 1
The coding addresses are displayed in groups, subject to system configuration:
Service function
"Hardware"
"General"
"Boiler"
"Charging"
"Buffer cylinder"
(Heating water buffer cylinder)
"Additional heat generator"
"Heating"
"DHW"
(DHW heating)
"Solar"
Hardware
Coding
Coding in the delivered condition
Additional boiler
Additional boil- No additional boiler installed
er:No
Buffer
Buffer:No No heating water buffer cylinder in-
stalled
78
6. / for "Heating" to select:
Ù Ú
"Heating circuit 1" (HC1), "Heating
circuit 2" (HC2), "Heating circuit 3"
(HC3) or "Heating circuit 4" (HC4), if
installed.
7. / for the required coding address
| ~
8. d to confirm.
9. / for the required value.
| ~
10. to confirm.
d
"Adopted" appears briefly on the dis-
play.
11. until the default display is shown.
ä
See page
78
81
81
82
84
84
86
89
89
Possible change
Additional boil- Additional boiler installed
er:Yes
Buffer:3 Heating water buffer cylinder with 3
buffer temperature sensors installed
Buffer:4 Heating water buffer cylinder with 4
buffer temperature sensors installed
Buffer:5 Heating water buffer cylinder with 5
buffer temperature sensors installed