10
U.S. Installations
1
Canadian Installations
2
A
Clearance above grade, veranda, porch,
deck, or balcony
1 ft (30 cm)
1 ft (30 cm)
B
Clearance to window or door that may be
opened
4 ft (1.2m) below or to side
of opening; 1 foot (30 cm)
above opening
3 ft (91 cm)
C
Clearance to permanently closed window
*
*
D
V
ertical clearance to ventilated soffit located
above the terminal within a hori
z
ontal dis
-
tance of 2 ft (
6
1cm) from the centerline of the
terminal
5
ft (1.
5
m)
*
E
Clearance to
u
nventilated soffit
*
*
F
Clearance to o
u
tside corner
*
*
G
Clearance to inside corner
6
ft (1.
8
3m)
*
H
Clearance to each side of center line e
x
-
tended above meter
/
reg
u
lator assembly
*
3 ft (91 cm) within a height
1
5
ft above the me
-
ter
/
reg
u
lator assembly
I
Clearance to service reg
u
lator vent o
u
tlet
*
6
ft (1.
8
3m)
J
Clearance to non
-
mechanical air s
u
pply inlet
to b
u
ilding or the comb
u
stion air inlet to any
other appliance
4 ft (1.2m) below or to side
of opening; 1 ft (30 cm)
above opening
3 ft (91 cm)
K
Clearance to mechanical air s
u
pply inlet
3 ft (91 cm) above if within
10 ft (3m) hori
z
ontally
6
ft (1.
8
3m)
L
Clearance above paved sidewalk or paved
driveway located on p
u
blic property
7
ft (2.13m)
7
ft (2.13m)
t
M
Clearance
u
nder veranda, porch, deck or
balcony
*
12 in. (30 cm)
TT
1
I
n accordance with the c
u
rrent A
NS
I
Z
223.1
/
N
F
P
A
5
4
N
ational
F
u
el
G
as Code
2
I
n accordance with the c
u
rrent CA
N
/
C
G
A
-
B149
I
nstallation Codes
t
V
ent terminal shall not terminate directly above sidewalk or paved driveway located between 2 single family dwellings that serves
both dwellings
TT
P
ermitted only if veranda, porch, deck, or balcony is f
u
lly open on a minim
u
m of two sides beneath the floor and top of terminal and
u
nderside of veranda, porch, deck or balcony is greater than 1 ft (30cm)
*
Clearances in accordance with local installation codes and the re
q
u
irements of the gas s
u
pplier
Fig. 5: Minimum Clearances from Vent/Air Inlet Terminations – Indoor and Outdoor Installations
Table F: Vent/Air Inlet Termination Clearances
Summary of Contents for H 300 Series
Page 40: ...40 WIRING DIAGRAM...
