Viessmann VITOCAL 300-A Installation And Service Instructions Manual page 112

Commissioning, inspection, maintenance
Further details regarding the individual steps
2. Press key 6 E whilst the progress
bar is filling from left to right.
The commissioning assistant
starts.
Note
You can cancel the commissioning
assistant at any time using key
"Standard display" F.
The commissioning assistant can
be restarted (steps 1 and 2) by
switching ON/OFF switch A OFF
and ON again.
Drain
Press the following keys:
1. y/x for the required lan-
guage.
2. "OK" to confirm; "Safety
scan" is displayed.
3. "YES" to confirm; "Access
rights" is displayed.
4. 5243 as "Code" for the
contractor level.
5. "OK" twice to confirm;
"Fault messages" or
"Programming" is
shown.
6. "BACK" if "Fault messages"
is displayed.
7. To configure the system, e.g.
select the system diagram and
available components, see
page 132.
112
(cont.)
8. "BACK" for "Sensor temps".
9. y/x for the required tem-
perature sensor (e.g.
"Outside", "Eva-
porator", etc.).
Note
Only temperatures for correctly
connected sensors are displayed.
10. 0/= to calibrate the
selected temperature
sensor if the dis-
played value differs
from the actual value
by more than 1 K.
11. "BACK" for "Signal inputs".
12. y/x to check whether all
signal inputs are set
to "OFF".
Note
Check connection if signal input is
set to "ON" (see page 176)