35
Sub-menu
point
Parameter
Setting range/unit
Delivered condition
9
Boiler controller start hysteresis (effec-
tive during minimum pause)
0 to 20 K
6 K
A
Boiler controller stop hysteresis (effec-
tive during minimum pause)
0 to 20 K
6 K
0
Reset all operating parameters to their
delivered condition.
Example: To set the maximum operational output of
the burner to between 70 and 100 %, press the follow-
ing keys:
1. S
longer than 2 s,
" "
flashes.
2.
until "6" is shown under Service.
3. S
"6" is displayed under Status.
4. S
"1" is displayed under Status. The current value
for the maximum operational output in % is
shown under Service.
5. /
for required maximum operational output.
6. S
to confirm. If adopted successfully, "1" appears
under Service; if it failed, "0" will appear.
7. S
to change to the operating display.
Resetting operating parameters to their delivered condition
1. S
longer than 2 s,
" "
flashes.
2.
until "6" is shown under Service.
3. S
"6" is displayed under Status.
4.
until "0" is shown under Service.
5. S
"1" is shown under Status and "dEL" under Serv-
ice.
6. S
to confirm. If reset successfully, "1" is shown
under Service; if it failed, "0" is shown.
7. S
to change to the operating display.
Manual operation and service display
To call up the service display and for manual operation
the burner must be running. The service display shows
the current modulation level in %.
Press the following keys:
1.
/
S
simultaneously for longer than 2 s.
The burner changes to manual mode and a
"P" will be shown under Status. The current
modulation level will flash under Service.
2.
for the lower heating output, until "0" is shown
under Service.
3.
for the upper heating output, until "100" is
shown under Service.
4.
/
S
simultaneously for longer than 2 s.
The burner returns to modulating mode.
Burner control unit
Burner control unit VUC 310
(cont.)
5816717
Codes
