Napoleon WSX-N Series Installation And Operating Instructions Manual page 28

28
FIGURE 14B - NON-DIRECT VENT TERMINAL CLEARANCES
IOM
IOM
D
A
B
C
D
E
F
G
H
I
J
K
L
M
NOTES:
1) In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code.
2) In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code.
† A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves
both dwellings.
‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the fl oor.
W415-3101 / B / 01.09.23
E
B
L
C
F
B
Clearance above grade, veranda, porch,
desk, or balcony
Clearance to window or door that may
be opened
Clearance to permanently closed
window
Vertical clearance to ventilated soffi t
located above the terminal within a
horizontal distance of 2 feet (61cm) from
the center line of the terminal.
Clearance to unventilated soffi t
Clearance to outside corner
Clearance to inside corner
Clearance to each side of center line ex-
tended above meter/regulator assembly
Clearance to service regulator vent
outlet
Clearance to non mechanical air supply
inlet to building or the combustion air
inlet to any other appliance
Clearance to a mechanical air supply
inlet
Clearance above paved sidewalk or
paved driveway located on public
property
Clearance under veranda, porch, deck
or balcony
G
H
A
B
B
Openable
B
B
J
A
Canadian Installations
6in (15cm) for appliances ≤10'000Btuh
(3kW), 12in (30cm) for appliances
>10'000Btuh (3kW) and ≤100'00Btuh
(30kW), 36in (91cm) for appliances >
100'00Btuh (30kW)
12in (30cm)
18in (46cm)
12in (30cm)
6in (15cm)
6in (15cm)
3ft (91cm) within a height 15ft (4.5m) above the meter / regulator
6in (15cm) for appliances ≤10'000
Btuh (3kW), 12in (30cm) for appliances
>10'000Btuh (3kW) and ≤100'00Btuh
(30kW), 36in (91cm) for appliances >
100'00Btuh (30kW)
6ft (1.83m)
Combustible &
Non-combustible
I
M
K
Legend:
= Vent Terminal
= Air Supply Inlet
= Area where terminal is not permitted
US Installations
12in (30cm)
4ft (1.2m) below or to side of opening;
1ft (300m) above opening
12in (30cm)
18in (46cm)
12in (30cm)
6in (15cm)
6in (15cm)
assembly
3ft (91cm)
4ft (1.2m) below or to side of opening;
12in (30cm) above opening
3ft (91cm) above if within 10ft (3m)
horizontally
7ft (2.13m)†
>12in (30cm)‡