Burner Control Unit Vuc 310 - Viessmann Vitocrossal CRU 800 Service Instructions For Contractors

Burner control unit VUC 310

Display and programming unit
A display and programming unit is integrated into the
burner control unit.
The following scans and settings are possible:
■ Operating condition
■ Meter, e.g. hours run
Parameter
■
Service functions
■
■ Fault messages
Status Service
S
Fig. 19
Reset button
A
Operating and fault indications:
B
Heat demand
Burner operation
Maintenance
Fault
Selection key
C
Cursor keys
D
Operating display
The operating display indicates the operating status
(start and test functions during burner start), both dur-
ing standard operation and after pressing reset button
R following fault rectification.
Only adjust settings and carry out scans on the
■
burner control unit when in standby.
Fault indication: See fault codes from page 39
■
onwards.
■ The operating display can temporarily be adjusted:
See chapter "Changing the configuration",
page 33.
Pressing reset button R or switching the power con-
nection off and on again will return the operating dis-
play to the default display, showing the start and test
functions during burner start.
R
Note
Depending on the system configuration, some scans
and settings can be carried out on the Vitotronic con-
trol unit of the boiler.
Installation and service instructions, Vitotronic
control unit operating instructions
Display in standby mode
Status Service
Fig. 20
Burner control unit
31