Termination Clearances Sidewall Direct Vent - Polaris PG10/GHX Instruction Manual

TERMINATION CLEARANCES SIDEWALL DIRECT VENT

D
Vent terminal clearances for "Direct Vent" installations. Direct Vent configurations use outdoor air for combustion.
Clearance above grade, veranda, porch,
A
deck or balcony
Clearance to window or door that may
B
be opened
C
Clearance to permanently closed window 6 inches (15 cm)*
Vertical clearance to ventilated soffit
located above the terminal within a
D
horizontal distance of 2 feet (61 cm) from
the center line of the terminal
E
Clearance to unventilated soffit
F
Clearance to outside corner
G
Clearance to inside corner
1 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.
(using outdoor air for combustion)
EXTERIOR CLEARANCES FOR SIDEWALL VENT TERMINATION
E
B
L
C
F
B
US INSTALLATIONS
12 inches (30 cm)
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)
12 inches (30 cm)*
12 inches (30 cm)*
2 feet (60 cm)*
18 inches (45 cm)*
DIRECT VENT
G
B
B
B
B
J
Figure 22
1
Clearance to each side of center line
H
extended above meter/regulator assembly
I
Clearance to service regulator vent outlet
Clearance to a non mechanical air supply
J
inlet into building or combustion air inlet to
any other appliance
K
Clearance to a mechanical air supply inlet
Clearance above paved sidewalk or paved
L
driveway located on public property
Clearance under veranda, porch, deck, or
M
balcony
26
H
H
M
I
K
US INSTALLATIONS
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
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)
3 feet (91 cm) above if within 10 feet (3 m)
horizontally
7 feet (2.13 m)†*
12 inches (30 cm) ‡*
1