FMI CGDV32PR Manuale Utente

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116646-01J
7
Figure 7 - Minimum Clearances for Termination Cap
lOCaTION OF TERMINaTION Cap
Fixed
Closed
Openable Fixed
Closed
V
V
V
V
V
V
V
V
X
X
V
X
G
G
J
F
B
B
K
N
H
I
A
N
E
L
D
B
M
A
C
B
V
V
A
G
G
B
TERMINATION CAP
AIR SUPPLY INLET
GAS METER
RESTRICTED AREA
(TERMINATION PROHIBITED)
A  =  clearance above grade, veranda, porch, deck, or
    balcony [*12" (30.5 cm) minimum]
B  =  clearance to window or door that may be opened 
    [6" (15 cm) min. for 10,000 Btu or less; 9" (23 cm) in US
    if between 10,000 and 50,000, 12" (30 cm) in Canada 
    if between 10,000 and 100,000; 12" (30 cm) in US if 
    greater than 50,000, 36" (91 cm) in Canada if greater 
    than 100,000]
C  =  clearance to permanently closed window
    [minimum 12" (30.5 cm) recommended to prevent
    condensation on window]
D  =  vertical clearance to ventilated soffit located above the
    terminal within a horizontal distance of 24" (61 cm) from
    the center-line of the terminal [18" (45.7 cm) minimum]
E  =  clearance to unventilated soffit [12" (30.5 cm) minimum]
F  =  clearance to outside corner (see below)
G  =  clearance to inside corner (see below)
H  =  *not to be installed above a meter/regulator assembly
    within 36" (91.4 cm) horizontally from the center line
    of the regulator
I  =  clearance to service regulator vent outlet [*72" (182.9 cm)
    minimum]
J  =  clearance to non-mechanical air supply inlet to building
    or the combustion air inlet to any other fireplace
    [6" (15 cm) min. for 10,000 Btu or less; 9" (23 cm) in US
    if between 10,000 and 50,000, 12" (30 cm) in Canada 
    if between 10,000 and 100,000; 12" (30 cm) in US if 
    greater than 50,000, 36" (91 cm) in Canada if greater 
    than 100,000]
K  =  clearance to a mechanical air supply inlet [*In Canada, 
    6 ft. (1.83m) minimum; In US 3 ft. (91 cm) above if within
    10 ft. (3 m) horizontally]
L  =  † clearance above paved side-walk or a paved driveway
    located on public property [*84" (213.3 cm) minimum]
M  =  clearance under veranda, porch, deck
    [*12" (30.5 cm) minimum ‡]
N  =  clearance above a roof shall extend a minimum of
    24" (61 cm) above the highest point when it passes
    through the roof surface and any other obstruction within
    a horizontal distance of 18" (45.7 cm) 
†  vent shall not terminate directly above a side-walk or paved driveway which is located between two
 
single family dwellings and serves both dwellings*
‡  only permitted if veranda, porch, deck or balconey is fully open on a minimum of 2 sides beneath the floor*
*  as specified in CAN/CSA B149 (.1 or .2) Installation Codes (1991) for Canada and U.S.A. 
Note: Local codes or regulations may require different clearances
A = 6" (15.2 cm)
Inside Corner
V
B
E
V
B = 6" (15.2 cm)
C = Maximum depth of 48" (121.9 cm)
 
for recessed location
D = Minimum width for back wall of 
 
recessed location -
 
Combustible - 38" (965 mm)
 
Noncombustible - 24" (61 cm)
E =  Clearance from corner in 
 
recessed location-
 
Combustible - 6" (15.2 cm)
 
Noncombustible - 2" (5.1 cm)
Outside Corner
Recessed Location
G
H
G = 12" (30.5 cm) minimum clearance
Balcony with No Side Wall
V
J
Combustible & 
Noncombustible
H = 24" (61 cm)
J = 20" (50.8 cm)
Balcony with Perpendicular Side Wall
C
D
C
Termination Clearances for Buildings with Combustible and Noncombustible Exteriors
Openable