Termination Clearances Sidewall Power Vent - State Water Heaters SUF 60120 THRU Instruction Manual

TERMINATION CLEARANCES SIDEWALL POWER VENT

D
Vent terminal clearances for "Power Vent" installations. Power Vent configurations use room air for combustion.
Type of Clearance
Clearance above grade,
A
veranda, porch, deck or 12 inches (30 cm)
balcony
•
•
Clearance to window or
B
door that may be opened
•
Clearance to permanent-
C
12 inches (30 cm)*
ly closed window
Vertical clearance to
ventilated soffit located
above the terminal within
D
12 inches (30 cm)*
a horizontal distance of
2 feet (61 cm) from the
center line of the terminal
Clearance to unventi-
E
12 inches (30 cm)*
lated soffit
Clearance to outside
F
2 feet (60 cm)*
corner
Clearance to inside
G
18 inches (45 cm)*
corner
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
E
B
L
C
F
B
Figure 51. Power Vent Using Room Air
Canadian
1
Installations Installations
12 inches (30
cm)
6 in (15 cm) for appli-
ances ≤ 10,000 Btuh (3
kW) 4 feet (1.2 m)
12 in (30 cm) for appli- below or to side
ances > 10,000 Btuh (3 of opening;
kW) and ≤ 100,000 Btuh 1 foot (30 cm)
(30 kW), 36 in (91 cm) above opening
for appliances > 100,000
Btuh (30 kW)
12 inches (30
cm)*
12 inches (30
cm)*
12 inches (30
cm)*
2 feet (60 cm)*
18 inches (45
cm)*
G
B
B
B
B
J
US
Type of Clearance
2
Clearance to each side
of center line extended
H
above meter/regulator
assembly
Clearance to service
I
regulator vent outlet
Clearance to a non
mechanical air supply
J
inlet into building or
combustion air inlet to
any other appliance
Clearance to a me-
K
chanical air supply inlet
Clearance above
paved sidewalk or
L
paved driveway located
on public property
Clearance under
M
veranda, porch, deck,
or balcony
37
H
M
I
K
Canadian
1
Installations
Clearance in accordance with
local installation codes and
the requirements of the gas
supplier
Above a regulator within 3 ft
(91 cm) horizontally of the ver-
tical center line of the regulator
vent outlet to a maximum verti-
cal distance of 15 ft (4.5 m)
• 6 in (15 cm) for appliances
≤ 10,000 Btuh (3 kW)
• 12 in (30 cm) for appli-
ances > 10,000 Btuh (3
kW) and ≤ 100,000 Btuh
(30 kW)
• 36 in (91 cm) for appli-
ances >100,000 Btuh
(30 kW)
6 feet (1.83 m)
7 feet (2.13 m)†
12 inches (30 cm) ‡
US
2
Installations
Clearance in accor-
dance with local in-
stallation codes and
the requirements of
the gas supplier
Clearance in accor-
dance with local in-
stallation codes and
the requirements of
the gas supplier
4 feet (1.2 m) below
or to side of opening;
1 foot (30 cm) above
opening.
3 feet (91 cm) above
if within 10 feet (3 m)
horizontally
7 feet (2.13 m)
12 inches (30 cm) ‡