baltur COMIST 18, Инструкция по эксплуатации

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ELECTRICAL CONNECTIONS
Electric lines should be at an adequate distance from hot parts. Make sure that all electrical connections are made with
flex electric wire, with suitable size for the voltage and absorbed power.
Maximum current absorbed = 500 VA
Minimum section of the feed line = 1mm
2 with 220V
CONTROL BOX Mod. LGB 22 CHARACTERISTICS
Waiting time = 9”
Prewashing time = min. 30”
Safety time
= 3”
DUAL FUEL BURNER’S FIRING INDICATIONS
We suggest to start the burner with the liquid fuel, as in this case the delivery is bound to the nozzle size whilst the gas
delivery can be easily changed by acting on the relative capacity adjuster.
If the burner is in the automatic version, the selector for the fuel change connects a cyclic relay which inserts, thanks to
an auxiliary relay, components for the use of both fuels (valves, pressure switches, pump etc.).
After having changed the position of the selector from gas to light oil and viceversa, it occurs to leave it stopped for at
least 10 seconds which is the time the cyclic relay needs to carry out its program.
Note : If the selector is moved from a position to another before the period of 10 seconds, the cyclic relay stops in the
middle of its program not allowing to use the burner both with gas and with light oil.
PREPARATIONS FOR IGNITION WITH LIGHT OIL
Make sure that the nozzle with spraying angle at 45° is suitable to the boiler’s capacity.
In the list hereunder you find the delivery values in kg/h of light oil related to the nozzle’s size and to the pump’s pressure
(normally 12 bar). (Please note that 1 light oil kg corresponds to 10.200 kcal about).
Make sure that the protrusion of the combustion head inside the combustion chamber is according to boiler
manufacturer’s instructions.
Make sure that the return pipe in tank has no obstructions, such as gates closed, caps etc.
Probable obstructions could cause faults on the pump’s shaft or flex pipe.
Open slightly the air purge device of the pump.
Disconnect the wire number 39 which feeds the pump motor from the terminal on the contactor “K1” and connect it for
moment the terminal “K1.56” of the “input junction box” so as to feed directly the pump motor.
Now close the reverser-switch on the burner and the general one and make sure that the rotation sense is correct.
Thus the pump motor is connected and starts the pump witch sucks the light oil.
When the light oil flows the air purge device open the main switch so as to stop the motor.
Re-set original connections to the corresponding terminals.
The burner is thus ready to operate at light oil.
LIGHT OIL IGNITION AND ADJUSTMENT
1) Make sure that the motors (fan and pump) turn in the correct sense.
2) Make sure that the discharge of combustion products takes place freely (boiler and chimney gate valves open)
and that there in water in the boiler.
3) Open of the necessary quantity the combustion air regulator and open about half the air passage between disc
and head by acting on the regulating screw of the flame disc.
4) Close the main switch and the burner switch so as to obtain the connection and wait the burner starting.
If the control pressure switch of the air pressure detects a pressure higher than the value to which it’s
adjusted, the ignition transformer connects and further to this also the light oil valve.
With the burner on operation correct, if necessary, the combustion air delivery.