Sime B-Essential Round 50, Руководство пользователя

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33
IT
ES
ENG
RUS
SL
2 START-UP
2.1 Before starting up the burner
Before starting up the appliance check that:
– the burner is correctly mounted on the boiler door and that this latter is firmly closed
– the cochlea and the burner flexible connection hose are positioned correctly
– the pellet container has been filled
– the water temperature probe has been correctly positioned
– the boiler and the plant has been filled with water
– the hydraulic circuit valves are open
– the fumes exhaust duct has been set up properly.
2.2 First ignition
Connect the burner power supply, positioning the plant main switch and the main burner switch in the “ON” position , and check
that the screen lights up.
The burner leaves the factory calibrated to approximately 20 kW. Before igniting the burner for the first time, change the parame-
ters as detailed under point 2.7.1.
To ignite it for the first time, press the ON-OFF button and hold for approximately 2 seconds, then wait for the flame to light.
Leave the burner in the continuous running mode, at maximum power for about 15 minutes, and then with a flue gas analyser
check that the values recorded are close to the ones indicated in the table:
Press the key to turn off the burner and leave it to cool.
WARNING: This operation must be carried out ONLY by authorised and qualified technicians.
2.3 Checks to carry out after the first ignition
After the first ignition, with a cold burner:
– disconnect the pellet supply tube from the burner
– open the boiler door and check that on the combustion chamber grill THERE IS NO unburnt material. If this is not the case, it is
necessary to modify the settings on the basis of the specific needs (the combustion air and the quantity of fuel) and to repeat the
“FIRST IGNITION” phase previously described.
2.4 Automatic shut-down and subsequent start-ups
Once the heat demand has been satisfied the supply of pellets is stopped, and the burner adapts its speed in order to burn the
residual pellets present in the combustion chamber, until the minimum brightness level (20 Lux) appears, which is recorded by the
photocell. When 20 lux is reached, the fan speeds up to maximum velocity (for 4 minutes) in order to clean the combustion cham-
ber of any residue and then stops. At every request for heat all the phases described previously are repeated.
2.5 Pellet calibration
The calibration of the quantity of pellets necessary for ignition and for running the burner is achieved as follows:
– fill the pellet container
– pull out the flexible hose from the burner socket and place it in a recipient (basin)
– Check that there are no requests for heat
– Connect the burner power supply, positioning the plant main switch and the main burner switch in the “ON” position , and check
that the screen lights up
– press the button (manual loading) until the pellets are falling continuously into the recipient (the cochlea is full of pellets)
– empty the recipient and press the button again (manual loading) for about 6 seconds (loading time for max power 5), controlling
the time with a stopwatch, and weigh the pellets which have fallen into the basin.
Calculate the burner power using the following formula: [ Y/X * 3.6 ] *Z = kW where:
Y Quantity of pellets (in grams) weighed in 6 seconds (loading time for max power)
X Load intervals (time between each pellet load)
3,6 Fixed value
Z
Pellet lower heating value
The calculated value will serve as a reference for setting the seconds for loading as performed by the external screw pump at
power 5.
WARNING CAUTION: If the type of pellets being used is changed (not advisable) the calibration of the pellets MUST be repeated,
because the combustion characteristics will change.
Description U/M Correct value
O
2
% ～ 10
CO (average) mg/cm
3
<
500
Exhaust temperature °C 120 ÷ 200