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GATE VALVE
Mechanism to amend the fuel gas dynamic resistance.
SMOKE EVACUATION SYSTEMS
Smoke evacuation plant independent from the appliance constituted by a connection or smoke channel,
chimney or individual fl ue, and chimney cap.
FORCED DRAUGHT
Air circulation by means of the fan activated by electric motor.
NATURAL DRAUGHT
Draught which determinates in a chimney/fl ue for eff ect of the volume mass diff erence existing between
smoke (hot) and surrounding atmosphere air, without any mechanical suction aid installed inside it or at
its peak.
RADIATION AREA
Area immediately near the furnace in which the heat caused by combustion is diff used, where there must
be no fuelling materials .
REFLUX AREA
Area where leaking of the fuel products is verifi ed, from the appliance towards the installation room.
INSTALLATION
The installation must be preceded by checking the chimneys, fl ues or unload terminals positioning of
appliances similarly to:
No installation
Legal distances
Limitations disposed by local administrative regulations or particular authority prescriptions.
Conventional limitations deriving from apartment building, constraints or contracts.
Allowed installations
Only appliances working softly respect to the room or which do not place the room in depression respect to
the external environment, can exist or be installed in the room where the heat generator will be installed.
Only in rooms for kitchen use are appliances for cooking food and relative
hoods without extractor allowed.
Installations not allowed
In the room where the heat generator will be installed the following must not pre-exist or be
installed:
- hoods with or without extractor
- collective type ventilation pipes.
Should these appliances be in rooms adjacent, communicating with the installation room, the simultaneous
use of the heat generator is forbidden, where a risk exists of one of the two rooms being placed in depression
respect to the other.
MOUNTING PHASES
Chapter 3
11
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