Viessmann Vitoplus 300 Service Instructions Manual page 61

Service level overview
Function
Temperatures, boiler cod-
ing card and brief scans
Relay test
Adjusting the air volume
Operating condition
Maintenance scan
Adjusting the display con-
trast
Fault history
User check (in conjunc-
tion with LON system)
Emissions test function
"S"
Coding level 1
Plain text display
Coding level 2
Numerical display
Temperatures, boiler coding card and brief scans
1. Press K and G simultaneously
for approx. 2 s.
The following values can be scanned, subject to the actual equipment level:
Key combination
K and G simultaneously
for approx. 2 s.
K and d simultaneously
for approx. 2 s.
K and F simultaneously
for approx. 2 s
Press c
c (if "Maintenance"
flashes)
d and a simultaneously;
the display darkens
d and b simultaneously;
the display becomes light-
er
G and d simultaneously
for approx. 2 s
L and d simultaneously
for approx. 2 s
F and E simulta-
neously for approx. 2 s.
K and L simultaneously
for approx. 2 s
L and G simultaneously
for approx. 2 s
2. Select the required scan with a or
b.
3. Press d.
Service scans
Exit Page
Press d 61
Press d 64
K and F 14
simulta-
neously
Press c 64
Press d 36
Press d 68
L and d 31
simulta-
neously
F and E
simulta-
neously
K and L 38
simulta-
neously
L and G 41
simulta-
neously
61