Ariterm Biomatic plus 50, Installation, Operation And Maintenance Manual

Page: 13 / 32

ARITERM SWEDEN AB
Installation, Operation & Maintenance - 2009.02.18- 13/32
START-UP IN OFF MODE START-UP IN OPERATING MODE
Start-up in OFF mode (cold burner start with electrical ignition)
You can only start up in this way when the burner has been switched off at the control
panel or when the power is restored after a power cut. The boiler temperature must be
8 degrees below its set-point value.
Attention! When the boiler is started for the first time after installation this must be
done by an authorised installer.
If the external feed system has been emptied of pellets, it must be refilled before
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you can start. The easiest way to refill the system is to remove the filling hose
from the burner top coupling letting it hang freely over a container. Switch on
the power to the burner control unit so that the operation indicating light is red.
Operating mode shall be OFF. Scroll through menu 1 with the arrow-forward key
until you reach EXTERNAL AUGER MANUAL and time (15 min). Start the
external auger by pressing the plus-key. Remaining operating time is indicated on
the display panel. The external auger can be stopped with the minus-key before
the programmed time has elapsed.
To start the burner, scroll through menu 1 with the arrow-forward key until you
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reach ON/OFF. Select ON with the pluskey. This starts the motor of the bur-
ner auger feeding fuel to the burn pot. After another 3 min the fan and ignition
element will become activated. When the fuel level has reached about the height
of the ignition element’s hot air outlet, the feeding rate will be reduced and after a
total of some 6-7 minutes the pellet fuel will ignite.
The boiler ’s optical monitor detects when the fuel has ignited and switches off the
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ignition element. The red light goes out and the green comes on to confirm that
the burner is operating. Fan speed is reduced. At the same time the fuel feed mo-
tor stops for three minutes to allow all the pellets in the burn pot to ignite. After
that pellets will be fed at reduced speed for another 5 minutes. After a subsequent
wait time of 10 minutes, the burner control cuts in and controls the operation of
the burner. If ignition fails, this is indicated by red light and an alarm message on
the display panel.
Attention! Sometimes, when the burner is started for the first time, or if there are no
pellets in the burner, a fire-start might be necessary after some 3 minutes operation.
Start and stop in operating mode
The green LED indicates that the burner is in operating mode.
During operation, start and stop is regulated by the boiler temperature sensor. When
the water temperature falls to 5 degrees below its set-point value, the burner starts in
the programmed low power mode. If the water temperature falls by an additional 2
degrees to 7 degrees below the set-point value, the programmed high power mode is
activated. The burner will then operate in this mode until the temperature has risen to
4 degrees below set-point value when it returns to low power mode. When the burner
is working, the green LED is lit. A red light indicates that the burner is not in opera-
tion (see ”Troubleshooting” )
OFF
To switch o the burner open menu 1 and go to ON/OFF using the arrow-forward
key. Select OFF using the minus key. When the burner is switched OFF, a red light is
lit on the control panel to indicate that power is connected.
Attention!
Always switch off the power to the burner during service work.