Viessmann Vitoladens 300-W Service Instructions For Contractors page 56

Service scans
Service level overview
Function
Temperatures, boiler cod-
ing card and brief scans
Relay test
Adjusting the air volume
Operating condition
Service scan
Adjusting the display con-
trast
Fault history
Subscriber check (in con-
junction with a LON sys-
tem)
Emissions test function
"S"
Coding level 1
Plain text display
Coding level 2
Numerical display
Temperatures, boiler coding card and brief scans
Press the following keys:
1. K + G simultaneously for
approx. 2 s
56
Key combination
Press K and G simulta-
neously for approx. 2 s
Press K and d simultane-
ously for approx. 2 s
Press K and F simulta-
neously for approx. 2 s
Press c
c (if "Service" flashes)
Press d and a simultane-
ously; the display darkens
Press d and b simultane-
ously; the display becomes
lighter
Press G and d simulta-
neously for approx. 2 s
Press L and d simultane-
ously for approx. 2 s
Press F and E simulta-
neously for approx. 2 s
Press K and L simultane-
ously for approx. 2 s
Press L and G simulta-
neously for approx. 2 s
2. a/b
3. d
Exit Page
Press d 56
Press d
58
Press K and 17
F simulta-
neously
Press c 59
Press d 35
– –
– –
Press d 62
Press L and 32
d simultane-
ously
Press F –
and E
simultane-
ously
Press K and
36
L simultane-
ously
Press L and 39
G simulta-
neously
for the required scan.
Scanning is completed.