Polaris BSS, Инструкция по эксплуатации, Страница: 27 / 63

27
TERMINATION CLEARANCES SIDEWALL DIRECT VENT
G
H
C
D
E
L
B
B
B
B
J
I
B
B
F
M
K
H
DIRECT VENT
(using outdoor air for combustion)
EXTERIOR CLEARANCES FOR SIDEWALL VENT TERMINATION
Figure 23
Vent terminal clearances for “Direct Vent” installations. Direct Vent configurations use outdoor air for combustion.
CANADIAN INSTALLATIONS
1
US INSTALLATIONS
2
CANADIAN INSTALLATIONS
1
US INSTALLATIONS
2
A
Clearance above grade,
veranda, porch, deck or
balcony
12 inches (30 cm) 12 inches (30 cm)
H
Clearance to each side
of center line extended
above meter/regulator
assembly
Clearance in accordance with
local installation codes and the
requirements of the gas supplier.
Clearance in accordance
with local installation codes
and the requirements of the
gas supplier.
B
Clearance to window or
door that may be opened
6 in (15 cm) for appliances
≤ 10,000 Btuh (3 kW), 12 in
(30 cm) for appliances > 10,000
Btuh (3 kW) and ≤ 100,000 Btuh
(30 kW), 36 in (91 cm) for
appliances >100,000 Btuh (30 kW)
6 in (15 cm) for
appliances ≤ 10,000
Btuh (3 kW), 9 in (23
cm) for appliances
> 10,000 Btuh (3 kW)
and ≤ 50,000 Btuh (15
kW), 12 in (30 cm) for
appliances > 50,000
Btuh (15 kW)
I
Clearance to service
regulator vent outlet
Above a regulator within 3 ft (91
cm) horizontally of the vertical
center line of the regulator vent
outlet to a maximum vertical
distance of 15 ft (4.5 m)
Clearance in accordance
with local installation codes
and the requirements of the
gas supplier
C
Clearance to
permanently closed
window
6 inches (15 cm)* 6 inches (15 cm)*
J
Clearance to a non
mechanical air supply
inlet into building or
combustion air inlet to
any other appliance
6 in (15 cm) for appliances
≤ 10,000 Btuh (3 kW), 12 in
(30 cm) for appliances > 10,000
Btuh (3 kW) and ≤ 100,000 Btuh
(30 kW), 36 in (91 cm) for appliances
>100,000 Btuh (30 kW)
6 in (15 cm) for appliances
≤ 10,000 Btuh (3 kW), 9 in
(23 cm) for appliances
> 10,000 Btuh (3 kW) and
≤ 50,000 Btuh (15 kW), 12 in
(30 cm) for appliances
> 50,000 Btuh (15 kW)
D
Vertical clearance to
ventilated soffit located
above the terminal within
a horizontal distance of
2 feet (61 cm) from the
center line of the terminal
12 inches (30 cm)* 12 inches (30 cm)*
K
Clearance to a
mechanical air supply
inlet
6 feet (1.83 m)
3 feet (91 cm) above if within
10 feet (3 m) horizontally
E
Clearance to unventilated
soffit
12 inches (30 cm)* 12 inches (30 cm)*
L
Clearance above
paved sidewalk or
paved driveway located
on public property
7 feet (2.13 m)† 7 feet (2.13 m)†*
F
Clearance to outside
corner
2 feet (60 cm)* 2 feet (60 cm)*
M
Clearance under
veranda, porch, deck,
or balcony
12 inches (30 cm) ‡ 12 inches (30 cm) ‡*
G
Clearance to inside
corner
18 inches (45 cm)* 18 inches (45 cm)*
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.
Where it may cause hazardous frost or ice accumulations on adjacent property surfaces.
‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.
* Clearance in accordance with local installation codes and the requirements of the gas supplier and the manufacturer’s installation instructions.