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Use the arrow keys to select the fan speed during pause feeding, select a value between 001 and 080.
After selection of the wanted fan speed press ”MENU”, and your choice has been saved.
Press ”
▼
” to proceed to the next parameter you wish to change – or press the ”START-UP” and the
“MENU” keys at the same time to finish.
6.32 Pause fan period.
Each time the plant feeds a little fuel during the pause mode, the fan will start up, as mentioned above.
How long time you want the fan to blow also depends on the fuel; if the fan blows for a too short period
when using for example grain as a fuel, the fire may die out – and if it blows for a too long time when
using an easily combustable fuel, this will cause an increased danger of a backfire.
PAUSE FAN TIME
Press ”MENU”
PAUSE FAN TIME
PAUSE SCREW ON
ADJUST 010 SEC
Use the arrow keys to select the period, during which the fan should run in the pause feeding mode,
select a value between 001 and up to 255sec.
After selection of the wanted period press ”MENU”, and your choice has been saved.
Press ”
▼
” to proceed to the next parameter you wish to change – or press the ”START-UP” and the
“MENU” keys at the same time to finish.
6.33 Pause screw period.
When the plant stands still in the pause mode, fuel is fed into the plant at adequate intervals. The amount
of fuel to be fed during the pause period is decided by the length of the “PAUSE SCREW PERIOD”.
As a starting point, set the screw period at the same value as the screw period in step 2.
If too much fuel is fed into the plant, the boiler temperature will slowly rise and in the end, the boiler will
overheat – on the other hand, if too little fuel is fed, this may cause the risk of a backfire.
PAUSE SCREW ON
Press ”MENU
” PAUSE SCREW ON
START PORTION
ADJUST 1.60 SEC
Use the arrow keys to adjust the running period, select a value from 0.03 and up to 52sec.
After selection of the wanted period press ”MENU”, and your choice has been saved.
Press ”
▼
” to proceed to the next parameter you wish to change – or press the ”START-UP” and the
“MENU” keys at the same time to finish.
6.34 Start portion.
When the boiler has been in the pause mode and is about to start up again, we add an adequate portion of
fuel (”START FUEL”) to enable the starting-up and facilitate for the oxygen % to quickly drop below the
“START-UP OXYGEN LIMIT” before the end of the “START-UP PERIOD”.
In case the boiler stops because the oxygen % is still too high, after the ”START-UP PERIOD” has
expired, you have to either enlarge the “START PORTION” or prolong the “START-UP PERIOD”.