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Gas connections<br />
ChefTop <br />
BakerTop <br />
B21 Type (for ovens with thermal power > 14kW): exhaust gases are released outside by means of a<br />
cooker hood. The cooker hood should be positioned at least 50 cm away from the ventilation switch: if positioned<br />
too near, it may cause an excessive drop in pressure when the ventilation switch is activated, which<br />
could draw a greater amount of gas inside the burner; this in turn could lead to explosions and the production<br />
of toxic unburnt gas.<br />
Caution!<br />
To ensure that the standard appliance settings correspond to the actual connection conditions, the first time<br />
the appliance is operated it will be necessary to perform an analysis of the burner exhaust gases, steam and<br />
hot air (CO, CO2), recording the measured values on the appliance.<br />
If the undiluted CO value is greater than 1000 ppm, the burner setting should be checked and, if necessary,<br />
adjusted by a technician authorised by the company, in accordance with the setting instructions.<br />
min. 500 mm<br />
Caution!<br />
We recommend a flue cover is installed on top of the external end of the flue, to prevent rainwater from<br />
getting into the oven and to minimise pressure drops caused by the Venturi effect, which can occur when the<br />
flue is subject to strong outside air currents.<br />
Combustion gas exhaust type selection must take place in accordance with the provisions set out by local<br />
legislation relating to the installation of gas appliances.<br />
All ovens are fitted with a wind-resistant flue, which is built into the combustion gas exhaust circuit and is<br />
activated in the event of an obstruction or if an unusual draught occurs: this flue is an integral part of the oven<br />
and should never be removed.<br />
Caution!<br />
The temperature of the exhaust gases may exceed 500°C.<br />
Given the high temperature of the exhaust gas, the exhaust gas piping must not be made using aluminium or<br />
any materials which cannot withstand temperatures up to 200°C.<br />
Caution!<br />
Exhaust piping must be inspected and approved by a specialist, in compliance with current local regulations<br />
and standards.<br />
It is recommended that written documentation is issued after the inspection has been completed.<br />
47<br />
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