INSTRUCTIONS FOR DISCHARGING GAS EMISSIONS
Type "A" Appliances (see data plate)
Type "A" appliances must discharge the products of combustion into extractor hoods or similar devices
connected to and efficient chimney, or directly outside. (Natural Discharge Fig.1)
If there is not a hood, as an alternative, an air extractor connected directly to the outside is acceptable, (Forced
Discharge Fig.2) but its capacity must not be inferior to what is established in item 4.3 of the UNI-CIG norm 8723.
In the event of forced discharge
The gas supply the the appliance, must be directly interlocked to the system and must cut off automatically in
the event that its capacity goes below the values prescribed by item 4.3 of the UNI-CIG norm 8723.
The release of gas to the appliance must be possible only manually.
NATURAL DISCHARGE Fig.1
1) Extractor hood
GB
IE
32
FORCED DISCHARGE Fig.2
1) Extractor hood
2) Interlocking