COMBUSTION CONTROL
In order to obtain the best combustion performance and efficiency, and for respect of the envi-
ronment, checksand adjustment of the combustion must be carried out, and with appropriate
tools.Basic values to be considered are:
—CO2 indicates the amount of excess air during combustion; if air is increased, CO2 % value-
sdecrease, and if combustion air is decreased, CO2 % values increase.
—SMOKE SCALE (Bacharach) indicates that solid un-burnt particles are present in the smo-
ke. If N°2 on the BH scale is exceeded the nozzle must be checked for faults and that it is
adapt to the burnerand boiler (trade, type, pulverization angle).Usually the BH scale number
tends to decrease, increasing pump pressure, in this case keep theincreasing combustion
levels under control.
—SMOKE TEMPERATURE is a level which indicates heat loss through the chimney; higher
thetemperature, greater is the loss and lower combustion efficiency. If the temperature is too
high thequantity of burned light oil needs to be lowered.
IMPORTANT: existing laws in some countries can require a different adjustment to that given
here and may alsohave different parameters. ECO burners are designed to meet the toughest
international laws on energy savingand respect of the environment.
MAINTENANCE
All operations should be performed with the electrical supply disconnected. After removing
the casing, it is possible to clean the photo resistance, inspect the motor, the electromagnetic
valve, the transformer and the air intake control.To reach the fan and butterfly valve, the over-
head plate and component mount must be removed.This will be attached in the standard ser-
vice position.This operation will also make the combustion head easy to remove.
To clean and inspect the choke-electrode, normally, one should extract the head group by
moving the overhead
plate.
PHOTO RESISTANCE
Unscrew from position and clean the photosensitive window with a dry cloth.
PUMP FILTER
Close the fuel line valve, take off the pump cover, take out the filter, clean it with gasoline, rinse
it with light oil and re-assemble carefully.
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