Viessmann VITODENS 200-W WB2B Series Start-Up/Service Instructions page 36

Control Technology
Outdoor Reset Programming Unit
Scanning and resetting the "Service" display
36
(continued)
The red fault indicator flashes when the limits for the maintenance interval (set
via coding address "21") and the burner service interval (coding address "23")
have been reached. On the programming unit the word "Service" flashes.
Note: Set coding address "24" to "24:0", and then to "24:1" if service
is performed before the service display is shown; the set service
parameters for hours run and interval are then reset to "0".
1. Press "i". The service scan is
active.
2. Press "⊕ / " to scan service
messages.
3. Press " ". The service display will
be cleared. Reconfirm
"Acknowledge: Yes" by pressing
" ".
The red fault display continues
to flash.
After service has been performed
1. Reset code "24:1" to "24:0".
The red fault indicator extinguishes.
2. Reset the burner hours run, burner
starts and consumption, if required.
Press the following buttons:
i
Scanning is active.
⊕ /
for the selected value.
" " The selected value will be
set to "0".
⊕ / for further scans.
Scanning is completed.
If coding address "24" is not reset,
the "Service" message reappears at
7 am on Monday.