Viessmann VITOLIGNO 300-C Installation And Service Instructions Manual page 122

Diagnosis and service scans
Checking the outputs (actuators)
The following actuators can be switched "manually"
Note
Depending on boiler size and settings, other actuators
may be available.
"General"
■ "Central fault, open"
"Output On"
■
"Boiler"
■ "Flue gas fan On"
■ "Ignition On"
■ "Prim air damper, open"
"Prim air damper, close"
■
"Sec air damper, open"
■
"Sec air damper, close"
■
■ "Boiler pump On"
■ "Boiler valve, open"
■ "Boiler valve, close"
■ "Ash removal On"
"Grate On"
■
"Grate Rev" (reverse the rotational direction)
■
"Cleaning On"
■
Note
After replacing a mixer motor or a circulation pump:
Check rotational direction!
"Charging"
■ "Feed screw conveyor On"
■ "Screw conveyor On"
■ "Vacuum module On "
■ "Discharge On"
"Changeover unit RR On" (clockwise)
■
"Changeover unit LR Rev" (anti-clockwise)
■
"Ext. charging On"
■
Calling up the "Actuator test" menu
Outputs (actuators) can be switched in the "Service"
menu under "Actuator test".
1. + Simultaneously for approx. 4 seconds
d
å
The "Service" menu appears.
2. / For "Actuator test"
| ~
3. To confirm
d
4. / For the required group of outputs (actua-
| ~
tors)
122
(cont.)
"Additional boiler"
"Additional boiler On"
■
"Heating circuit 1"
■ "Pump On"
■ "Valve, open"
"Valve, close"
■
"Heating circuit 2"
■ "Pump On"
■ "Valve, open"
■ "Valve, close"
"Heating circuit 3"
"Pump On"
■
■ "Valve, open"
■ "Valve, close"
"Heating circuit 4"
"Pump On"
■
"Valve, open"
■
"Valve, close"
■
"DHW"
■ "Pump On"
■ "Valve, open"
"Valve, close"
■
"DHW circulation" (on the boiler, HKK PCB)
■ "Pump On"
"Solar" (on the boiler, HKK PCB)
"Pump On"
■
"Valve, open"
■
"Valve, close"
■
5.
d
6. /
| ~
7.
d
8.
d
9.
ä
To confirm
For the required output (actuator)
To activate
Note
The speed of some actuators can be
changed by pressing | / ~ .
To terminate
Until the default display is shown.