Procom MD2TPA Manual Del Usaurio página 9

AIR FOR COMBUSTION AND VENTILATION
WARNING: If the area in which the heater may be operated is
smaller than that defined as an unconfined space or if the building
is of unusually tight construction, provide adequate combustion and
ventilation air by one of the methods described in the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, the International Fuel Gas Code,
or applicable local codes.
This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining
unconfined space, you must provide two permanent openings: one within 12" of the ceiling
and one within 12" of the floor on the wall connecting the two spaces (see options 1 and 2,
Figure 2). You can also remove door into adjoining room (see option 3, Figure 2). Follow the
National Fuel Gas Code, ANSI Z223.1/NFPA 54, Air for Combustion and Ventilation for required
size of ventilation grills or ducts.
Provide extra fresh air by using ventilation
grills or ducts. You must provide two perma-
nent openings: one within 12" of the ceiling
and one within 12" of the floor. Connect these
items directly to the outdoors or spaces open
to the outdoors. These spaces include attics
and crawl spaces. Follow the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Air for
Combustion and Ventilation for required size
of ventilation grills or ducts.
Ventilation
Or
Grills
Remove
into Adjoining
Door into
Room,
Adjoining
Option 1
Room,
Option 3
Figure 2 - Ventilation Air from Inside
Building
Note: Base not included. Not for use in bed-
rooms or bathrooms.
200042-01A
VENTILATION AIR
Ventilation Air From Inside Building
Ventilation Air From Outdoors
12"
Ventilation Grills
Into Adjoining Room,
Option 2
12"
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IMPORTANT: Do not provide openings
for inlet or outlet air into attic if attic has a
thermostat-controlled power vent. Heated air
entering the attic will activate the power vent.
Rework worksheet, adding the space of the
adjoining unconfined space. The combined
spaces must have enough fresh air to supply
all appliances in both spaces.
Outlet
Air
Outlet
Air
Inlet
Air
Inlet Air
Figure 3 - Ventilation Air from Outdoors
Ventilated
Attic
To Attic
To
Crawl
Space
Ventilated
Crawl Space
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