Lamborghini Caloreclima FIME 5 S-E Notice D'installation Et D'entretien page 33

CHECKING COMBUSTION
In order to obtain optimum combustion efficiency and to safeguard the environment, we recommend to check, and regulate
combustion using the appropriate instruments.
The most important levels to be checked are:
CO . The level of CO indicates the excess of air during combustion. If the quantity of air is increased, then the CO
2 2
level decreases, while a decrease in combustion air leads to an increase in CO
METHANE, 11-12% B/P.
CO. This indicates the presence of unburnt gas. CO, as well as lowering the combustion efficiency, is also a danger, being
a poisonous gas. The presence of CO is thus an indication of imperfect combustion, and is usually a sign that there is a
lack of air during combustion. Maximum acceptable value is CO = 0.1% volume.
Flue gas temperature. This represents the loss of heat through the chimney. The higher is the temperature, the greater is
the loss of heat and the lower is the combustion efficiency. If the temperature is too high, then it is necessary to decrease
the amount of gas burnt. Acceptable temperature levels range between 160°C and 220°C.
NOTE: Certain countries may have different regulations, and thus different admissible levels from those given
above.
START UP
Check the ignition electrodes tips position and control probe position. Check the correct operation of the air and gas pressu-
re switches. At the closing of the thermostats line and of the gas pressure switch, the control box allows the motor starting.
During this time the unit effects a self-checking phase. If the self-checking gives positive result, the cycle continues and at
the end of the preventilation time (T1 combustion chamber purge) the consent is given to the transformer for the spark to
the electrodes and for the solenoid valve opening.
During the safety time (TS) the flame must establish, otherwise the systems locks out.
PROLONGED SWITCHING OFF
If the burner should remain inactive at length close the gas cock and remove the electrical current from the appliance.
OPERATION WITH DIFFERENT TYPES OF GAS
CONVERSION FROM NATURAL GAS TO B/P
No specific burner is expected. If the burner must be
converted from natural gas to other types consider
that:
gas with high calorific value (B/P)
It is necessary to adjust the ring-nut (A) situated on
the supply pipe (B) moving it towards the diffuser
(C), so that to close the holes for the gas outlet.
Concerning the gas delivery, as generally there is no
possibility to check it directly (counter), it is possible,
as general indication, to adjust it by checking the
smoke temperature.
NOTE: the ring-nut locking screw must be in the area
of the electrodes. Place the ring-nut in touch with the
diffuser.
. Acceptable values would be: 8.5-10%
2
NOTE: ring-nut locking screw must be in the area
of the electrodes.
C
A
Place the ring-nut in touch with the diffuser
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%
2
B