Viessmann VITOCAL 300, Installation And Service Instructions Manual

Page: 77 / 160

2. Enter code:
Menu item
& " System settings "
& " Access rights "
& Enter code: SERVICE
press each 1 x
& 2 x " OK "
Note
Access to the technical service
level is blocked with the program-
ming unit flap closed.
The code needs to be re-entered if
additional adjustments are to be
made at the technical service level.
Adjusting sensor temperatures
Sensor deviations caused by differing
line resistances can be compensated
for using this function.
Data remains stored even during
power failures.
Menu item
&
" System settings "
&
" Tech. service level "
&
" Match sensor temp. "
Enter current temperature measure-
ment for each sensor.
Pressing "
RESET " reverses the
adjustment entered for the high-
lighted sensor.
&
" OK "
Enabling the technical service level
(cont.)
77
Control unit settings
55
92
901
GB
Service