A.O. Smith 100 Series Installation And Operating Manual

19
TERMINATION CLEARANCES SIDEWALL POWER VENT
Fixed
Closed
Operable
Fixed
closed
Operable
B
V
V
V
V
V
V
V
V
C
B
B
X
A
M
K
Regulator vent outlet
In the event no
regulator is present,
H and I can be
disregarded
.
V
Legend:
= Vent terminal
X
= Air supply inlet
= Area where terminal is not permitted
B
B
J
F
X
B
L
E
D
Inside
corner detail
V
A
G
H
15 ft
I
Figure 15. Sidewall Power Direct Vent Using Outside Air
Table 8. Termination Clearances for Sidewall Power Vent
Type of Clearance
Canadian Installations
1
US Installations
2
A Clearance above
grade, veranda,
porch, deck or
balcony
12 inches (30 cm) 12 inches (30 cm)
B Clearance to
window or door that
may be opened
• 6 in (15 cm) for appli-
ances ≤ 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 in (15 cm) for appli-
ances ≤ 10,000 Btuh
(3 kW)
• 9 in (23 cm) for appli-
ances >10,000 Btuh (3
kW) and ≤ 50,000 Btuh
(15 kW)
• 12 in (30 cm) for appli-
ances > 50,000 Btuh
(15 kW)
C Clearance to
permanently closed
window
12 inches (30 cm)* 12 inches (30 cm)*
D Vertical clearance
to ventilated so󰀩t
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)*
E Clearance to unven-
tilated so󰀩t
12 inches (30 cm)* 12 inches (30 cm)*
F Clearance to out-
side corner
2 feet (60 cm)* 2 feet (60 cm)*
G Clearance to inside
corner
18 inches (45 cm)* 18 inches (45 cm)*
Table 8. Termination Clearances for Sidewall Power Vent
Type of Clearance
Canadian Installations
1
US Installations
2
H Clearance to each
side of center line
extended above
meter/regulator as-
sembly
3 ft (91 cm) within a
height of 15 ft (4.6 m)
Clearance in accordance
with local installation
codes and the require-
ments of the gas supplier
I Clearance to service
regulator vent outlet
3 ft (91 cm) Clearance in accordance
with local installation
codes and the require-
ments of the gas supplier
J Clearance to a non
mechanical air sup-
ply inlet into building
or combustion air
inlet to any other
appliance
• 6 in (15 cm) for appli-
ances ≤ 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 in (15 cm) for appli-
ances ≤ 10,000 Btuh
(3 kW)
• 9 in (23 cm) for appli-
ances >10,000 Btuh (3
kW) and ≤ 50,000 Btuh
(15 kW)
• 12 in (30 cm) for appli-
ances > 50,000 Btuh
(15 kW)
K Clearance to a
mechanical air sup-
ply inlet
6 feet (1.83 m) 3 feet (91 cm) above
if within 10 feet (3 m)
horizontally
L Clearance above
paved sidewalk or
paved driveway
located on public
property
7 feet (2.13 m)† 7 ft (2.13 m) for me-
chanical draft systems
(Category I appliances);
vents for Category II and
IV appliances cannot
be located above public
walkways or other areas
where condensate or va-
por can cause a nuisance
or hazard
M Clearance under
veranda, porch,
deck, or balcony
12 inches (30 cm) ‡ 12 inches (30 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 can cause hazardous frost o 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

A.O. Smith 100 Series Specifications

General

Brand	A.O. Smith
Series	100 Series
Category	Water Heater
Vent Type	Atmospheric
Type	Tank
Fuel Type	Natural Gas, Propane
Warranty	6-Year Limited Tank and Parts