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Vitoflex 300-UF Installation & Operating
Parameter Level
On each sub-area screen, the key
gives you
access to the sub-area’s parameter level. The parameters
may be assigned to several tabs. The number of
parameters varies depending on the system configuration.
Parameters are set using the entry fields.
Fuel
“Feed” tab
Parameter
Description
Setting
range
Standard
value:
“Combustion chamber fill time” Length of time that the feed screw conveyor is in operation
to supply fuel. Applies only to cold starts, i.e. at low
combustion chamber temperatures.
In the “Filling” operating state: If the feed system is empty,
it is filled first until the feed light barrier is triggered.
Note:
For ignition to be successful, there must be an
adequate amount of fuel, level with the ignition system,
after the combustion chamber fill time has elapsed.
Setting in seconds
10 to 1200
80
“Screw conveyor fill time”
Length of time that the feed system is filled on system
start-up.
Applies only to warm starts, i.e. when the combustion
chamber temperature is sufficiently high.
Setting in seconds
10 to
“Combustion
chamber fill
time”-10
60
“Fuel hopper emptying time”
Time delay for filling the fuel hopper
Setting in seconds
0 to 100
25
“Cycle after heatup”
Left entry field
Cycle time in “Ignition” operating state
Setting is a % of the system’s inherent maximum cycle
time for fuel feed
1 to 100
20
“Delay”
Right entry field
Length of time after which the feed system is enabled
again if the ignition process was successful.
Settings in minutes
1 to 60
20
Parameter