Code 2; Calling Up Code 2 - Viessmann Vitoligno 300-C Installation And Service Instructions For Contractors

Code 1
(cont.)
Coding in the delivered condition
Start delay
D2:10 Start delay of the additional heat
source of 10 min
Start temperature set system temperature
D3:-10 Start temperature of the additional
heat source. Condition for starting:
Actual system temperature < set
system temperature minus value
set (here: 10 K)
Minimum runtime
D4:5 Minimum runtime of the additional
heat source of 5 min
Minimum pause duration
D5:5 Minimum pause duration of the ad-
ditional heat source of 5 min
Start without delay, Set system temp
D6:-20 Start of additional heat source
without delay. Condition: Actual
system temperature < set system
temperature minus value set (here:
20 K)
Parallel operation
D7:1 Parallel operation of both heat
sources is possible.
Note
Parallel operation only possible
when the additional heat source
has a boiler circuit pump.

Code 2

Calling up code 2

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 keys:
1. + simultaneously for approx. 4 s.
d
å
The "Service" menu appears.
Possible change
D2:0 Adjustable value in min
to
D2:250
D3:-100 Adjustable value in K
to
D3:-1
D4:0 Adjustable value in min
to
D4:250
D5:0 Adjustable value in min
to
D5:250
D6:-100 Adjustable value in K
to
D6:0
D7:0 Parallel operation of both boilers is
not possible.
2. simultaneously for approx. 4 s.
+ d
ä
"Code 2" appears in the "Service"
menu.
3. / for "Code 2".
| ~
4. to confirm.
d
5. / for the required coding address.
| ~
6. to confirm.
d
7. / for the required value.
| ~
Codes
61