Scanning And Resetting Maintenance Displays - Viessmann VITOTRONIC 100 Installation And Service Instructions Manual

Scanning and resetting maintenance displays

After limits set up via coding addresses "1F", "21" and "23" (see page 144)
have been reached, the programming unit display flashes one of the
following messages, and the red fault indicator flashes.
Note
Set code "24:1" and then code "24:0", if maintenance is implemented before
"Service" is displayed; the set maintenance parameters for hours run and
intervals are reset to 0.
Display Description
indication
ºC Max. flue gas temp.
a 245
has been reached
Burner hours run have
35510
h
been reached
Interval
u
12
(e.g. 12 months)
has been reached
After maintenance has been carried out
1. Reset code "24:1" (see page 145) to
"24:0".
Note
If coding address "24" is not reset,
a new "Service" message will be
displayed on Monday morning.
2. If required:
H Press c.
H Reset burner hours run and
burner starts with e
(see page 109).
H Press c.
1. Scan maintenance messages
with a or b.
2. Press d.
The "Service" display
extinguishes, and the red fault
indicator continues to flash.
Note
An acknowledged maintenance
message can be redisplayed by
pressing d(approx. 2 s).
3. If required:
H Press K and G
simultaneously for approx. 4 s
H Max. flue gas temperature (8)
reset with e to the actual value
(see page 107).
H Press d.
Service scans
111