Viessmann Vitoligno 300-C Installation And Service Instructions Manual page 91

Code 2
Calling up code 2
!
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".
Note
At coding level 2, all codes are accessible, including
■
the codes at coding level 1.
■ Codes that are not assigned, due to the heating sys-
tem equipment level or the setting of other codes,
are not displayed.
Press the following buttons:
1. +
d
å
2. +
d
ä
3. /
| ~
Overview of coding level 2
The coding addresses are displayed in groups, subject to system configuration:
Service function
"General"
"Boiler"
"Charging"
"Buffer cylinder"
(Heating water buffer cylinder)
"Heating"
"DHW"
(DHW heating)
General
Coding
Coding in the delivered condition
Fault message output delay
80:6 Minimum duration of fault before a
fault message is issued.
6 increments
Automatic summer/wintertime changeover
81:1 Automatic summer/wintertime
changeover
simultaneously for approx.
4 s.
The "Service" menu
appears.
simultaneously for approx.
4 s.
"Code 2" appears in the
"Service" menu.
for "Code 2".
≙
30 seconds
4.
d
5. /
| ~
6.
d
7. / for "Heating" for: "Heating circuit 1" (HC1),
Ù Ú
8. /
| ~
9.
d
10. /
| ~
11.
d
12.
ä
See page
91
92
94
95
95
97
Possible change
80:0 1 increment
to Adjustable value from 0 to 995 sec-
80:199 onds.
81:0 Manual summer/wintertime change-
over
Codes
to confirm.
for the required group.
to confirm.
"Heating circuit 2" (HC2),
"Heating circuit 3" (HC3)
or "Heating circuit 4"
(HC4), if installed.
for the required coding
address.
to confirm.
for the required value.
to confirm.
"Adopted" appears briefly
on the display.
until the default display is
shown.
≙
5 seconds.
91