14
1.7 Connecting the gas
(gas ovens only)
Nota bene:
The oven is calibrated originally
for operation with the type of gas
speciedonplacingtheorder.
The type of gas for which the oven
is adjusted is given on the technical
plate positioned on the appliance
(Fig. 12, ref. A)�
During the inspection, make sure
that the factory calibrations on the
burners are appropriate for the
specic type of installation, through
the analysis of the gases produced by
combustion(CO2andCO)andthevericationoftheheatoutput.
Specically,withthe ovenoperatingatfull regime, thevaluesof undiluted
CO at the exhaust must remain within 1000 ppm� Should there be any
undiluted CO beyond this parameter, the burner adjustments must be checked
exclusively by a technician authorised by the manufacturer, who will make the
necessary changes to the devices which take care of the combustion and to
their parameters�
The data detected must be noted and become an integral part of the technical
documentation of said appliance�
Installation prescriptions
The oven installation and commissioning operations must be performed by
qualiedstaffonlyincompliancewithrulesandregulationsinforce.
The gas plants, the electric connections and the places of installation of the
appliances must be in compliance with the regulations and the standards in force�
Remember that the air necessary for combustion of the burners is 2 m³/h per kW
of power installed�
In businesses open to the public, accident-prevention regulations must be
compliedwithalongwithre-preventionsafetyandanti-panicregulations.
Theconnectiontothegassupplyttingcanbemadeusingexiblemetal
hoses; placing a type-approved cut-off cock in an easily accessible point�
Makesurethattheexiblemetalhose,forconnectiontothegasinlettting,
does not touch the hot parts of the oven and that it is not subjected to twisting
or extension�
Usexingstrapsthatareincompliancewiththeinstallationregulations.
Fig. 12
A