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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 no 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 esta-
blished in item 4.3 of the UNI-CIG norm 8723.
In the event of forced discharge
The gas supply to the appliance, must be directly interlocked to the system and cut off au-
tomatically if its capacity drops below the values prescribed by item 4.3 of the UNI-CIG
norm 8723.
Supplying the appliance with gas again must only be possible manually.
NATURAL DISCHARGE
1. Extractor hood
Officine Gullo
Fig.1
FORCED DISCHARGE
1. Extractor hood
2. Interlocking
Fig.2
15
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