baltur COMIST 23SP, Инструкция

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23
LIGHT OIL IGNITION AND ADJUSTMENT
1) Check that the pump and fan motors rotate in the right direction.
2) Make sure that the discarge of combustion products can take place freely (chimney lock-gates should be open)
and that there is water in the boiler.
3) Open, as much as considered necessary, the combustion air regulator (see drawing air regulation servomotor
SQN 30) and open by about half the air passage between thehead and the disk by operating the regulating screw
of the flame disk.
4) Disconnect the 2nd flame thermostat to avoid the ignition of this same flame, close the main switch in order to
connect the burner and wait for it to start up.
With the burner operating at 1st flame correct, if necessary, the combustion air delivery.
The pump pressure for the “1st flame” should be 8 bar.
After regulation, turn off the burner and then turn it on again in order to verify that ignition occurs correctly.
It should be remembered that, in order to ensure a soft ignition, it is necessary to regulate in such a way that the
quantity of air is the minimum indispensable.
If ignition takes place softly, disconnect the burner from the main switch and make a direct connection (bridge)
between the 2nd flame thermostat terminals.
N.B. The 2nd flame thermostat must be a two contacts type, see the relative burner electrical diagram;
in case this thermostat is not available see diagram n° 0002050180.
5) Regulate the combustion air in the position considered necessary for insertion of the 2nd flame (see air regulation
servomotor SQN 30).
6) Now, connect again the burner which will start operating with the 1st and 2nd flames.
Operate the air regulation cam of the 2nd flame in order to adapt its delivery to the specific conditions.
The pump pressure for the “2nd flame” should be 16 bar.
7) The burner is fitted with a device which optimizes the combustion by reducing or increasing the air passage
between the disk and the head.
Maximum smoke intensity permissable is n° 2 of the Bacharach scale, with a Carbon Dioxide (CO
2
) value of
between 10 and 13%.
It is normally necessary to reduce the air passage between the disk and the head when operating with a reduced
fuel delivery. This passage must be proportionately opened more when the burner is working with a higher fuel
delivery. When modifying this position, it is normally necessary to correct the position of the air regulation
shutters of the 1st and 2nd flames, and
subsequently , verify that ignition occurs correctly.
NATURAL GAS IGNITION AND ADJUSTMENT (METHANE)
Note : Please refer to the last pages where specific instructions are given with regard to regulating the gas delivery in
function with the type of valve fitted into the burner.
In order to proceed with ignition, it is indispensable to carry out a purge of the air contained in the pipeline and check, if
the burner is three-phase, that the sense of rotation of the motor is correct.
Then proceed as follows:
1)
Make sure that the discarge of combustion products can take place freely (chimney lock-gates should be open)
and that there is water in the boiler.
2) Open as much as considered necessary, the combustion air regulator (see air regulation servomotor SQN 30)
and open by about one third the air passage between the head and the disk by operating the regulating screw of
the flame disk.
3) Operate the regulations incorporated in the safety valve and the “1st flame” valve in order to obtain the gas
delivery (starting output) presumed necessary.
Note : Please refer to the last pages where specific instructions are given with regard to regulating the gas
delivery in function with the type of valve fitted into the burner.
4) Disconnect the 2nd flame thermostat to avoid the ignition of this same flame and give current to the burner by
connecting the main switch.
The burner is turned in in this way, and will then carry out the pre-ventilation phase.
If the air pressure exceeds the value at which the air pressure switch has been set, the ignition transformer
will be turned on and, subsequently, the gas valves (safety and 1st flame) will be inserted.
The valves open completely and gas delivery is limited to the position at which the output regulator incorporated
in the 1st flame (pilot) valve has been manually set. At dirst ignition, successive “shut downs” can occur due to
the gas pipeline not being sufficiently purged of air and therefore the quantity of gas is not sufficient to allow for a
stable flame.