Electrical Connections - Description Of Operations - Combustion Check - baltur GI 350 ME Instrucciones

ELECTRICAL CONNECTIONS
The three-phase or single-phase power supply line of the minimum suitable size for the power absorbed by the
burner must be provided with fuse switch. In addition, according to the Standards, a switch on the burner supply
line is required, arranged outside the boiler room in an easily reachable position.
All electrical lines must be protected with a flexible sheath, be firmly fixed and pass far from high-temperature
elements. See the diagrams for the electrical connections (line and thermostats).
BURNER CONNECTION TO THE GAS PIPING
After attaching the burner to the boiler, remembering that the burner's blast-pipe must penetrate the combustion
chamber, connect it to the gas piping. It is advisable to install, as close as possible to the burner, a flange
couple connection to allow the boiler's door to be opened without difficulty and to permit burner disassembly .
Before closing this connector the air in the piping should be carefully bled out with doors and windows open.
Before testing the burner, you must check the gas piping is completely free from any leaks.
DESCRIPTION OF OPERATIONS NATURAL GAS
The attainable capacity variation field is, indicatively, from 1 to 1/5 with respect to the maximum capacity
stated on plate. Ignition is preceded, as provided for in the regulations, by pre-ventilation of the combustion
chamber. The pre-ventilation stage for the combustion chamber takes place with the air damper at the large flame
position. At the end of the pre-ventilation stage, the air combustion air dampers are brought back to the ignition
flame position. If the pressure switch for the pre-ventilation air pressure shows sufficient pressure, the ignition
transformer is switched on and then the gas valves switch on. The flame then appears, detected by the control
device (photo-electric cell) that permits completion of the ignition stage with the switching off of the ignition
transformer.
The amount of gas supplied with the large flame must be adjusted with electronic control box "LMV 51...". If there
is no ignition flame, the equipment carries out an automatic system safety stop. If there is such a "safety stop", the
valves immediately close again. To release the equipment from the safety lock position, press the release button
on the display.
Note: To adjust the gas valves see the specific instructions in the following pages. The air damper is worked by an
electric motor. When the damper goes to its fully closed position, the burner will stopped by the action of the
thermostat.
COMBUSTION CHECK
For a correct air/gas ratio you have to get a carbon dioxide reading (CO
minimum burner supply and up to the optimal level of 10% at maximum supply.
It is not advisable to exceed a 10% value or it could run with too little excess air. This could in turn cause (with
atmospheric pressure changes, the presence of dust in the air ducts) significant quantities of CO (carbon monoxide)
to be present in the system. To prevent dangerous situations from arising, it is essential to always check,
with a suitable instrument, that the percentage of carbon monoxide (CO) present in the fumes is not
greater than the maximum permitted level of 0.1%.
) for the methane of at least 8% at the
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