Direct Venting Termination Clearances - Rheem *96V series Installation Instructions Manual

GENERAL VENTING REQUIREMENTS AND
DIRECT VENT TERMINATION CLEARANCES
Figure 32 shows minimum clearances that must be used for direct venting terminations.
FIGURE 32
DIRECT VENT TERMINAL CLEARANCES
D
E
B
L
A = Clearance above grade, veranda, porch, deck
or balcony
B = Clearance to window or door that may be opened
C = Clearance to permanently closed window
D = Vertical clearance to ventilated soffit located above the
terminal within a horizontal distance of 2 feet (0.6m)
from the center line of the terminal
E = Clearance to unventilated soffit
F = Clearance to outside corner
G = Clearance to inside corner
H = Clearance to each side of center line extended above
meter / regulator assembly
I = Clearance to service regulator vent outlet
J =
or the combustion air inlet to any other appliance
K = Clearance to mechanical air supply inlet
L = Clearance above paved sidewalk or paved driveway
located on public property
M = Clearance under veranda, porch, deck or balcony
1
In accordance with the current ANSI Z223.1/NFPA 54 Natural Fuel Gas Code
2
In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code
† Vent shall not terminate less than 7 ft. (2.1m) above a paved sidewalk or paved driveway
that is located on public property.
‡ Permitted only if veranda, porch, deck or balcony is full open on a minimum of two sides
beneath the floor. We reccommend avoiding this location if possible.
VENT TERMINATION CLEARANCES
FOR DIRECT VENT INSTALLATIONS IN THE USA AND CANADA
C
Fixed
Closed
F
Operable
B
VENT TERMINAL
12 inches (305mm) or 12 in. 305mm)
above average snow accumulation.
6 inches (152mm) for appliances<10,000 Btuh (3kw),
12 inches (305mm) for appliances >10,000 Btuh (3kw),
and<100,000 Btuh (30kw),
36 inches (.9m) for appliances > 100,000 Btuh (30kw)
* 12" (30cm)
* Equal to or greater than soffit depth
* Equal to or greater than soffit depth
* No minimum to outside corner
* 3 ft. (.9m), 10 ft. (3.05 m) preferred
3 feet (.9m) within a height 15 feet (4.5m)
above the meter / regulator assembly
3 feet (.9m)*
r supply inlet to building 6 inches (152mm) for appliances <10,000Btuh (3kw),
12 inches (305mm) for appliances > 10,000 Btuh (3kw)
and<100,000 Btuh (30kw),
36 inches (.9m)for appliances > 100,000 Btuh (30kw)
3 feet (.9m) above if within 10 feet (3m)
horizontally
* 7 feet (2.1m)
INSIDE CORNER
DETAIL
G
A
B
B
Fixed
Operable
Closed
B
J
A
AREA WHERE TERMINAL
AIR SUPPLY INLET
IS NOT PERMITTED
1
US Installations
12 inches (305mm) for appliances >10,000 Btuh (3kw),
and<100,000 Btuh (30kw),
36 inches (.9m) for appliances > 100,000 Btuh (30kw)
*For clearances not specified in ANSI Z223.1/NFPA 54 or CSA B149.1, clearance
will be in accordance with local installation codes and the requirements of the gas
supplier and these installation instructions."
GUIDELINES
H
I
M
K
2
Canadian Installations
Must conform to
CSA B149.1-10, Sect. 8.14.
6 inches (15cm) for appliances<10,000 Btuh (3kw),
* 12" (30cm)
* 3 ft. (0.9m)
* 2 ft. (0.6m)
* No minimum to outside corner
* 3 ft. (.9m), 10 ft. (3.05m) preferred
3 feet (.9m) within a height 15 feet (4.5m) above the
meter / regulator assembly
*3 feet (.9m)
6 inches (15cm) for appliances <10,000Btuh (3kw),
12 inches (30cm) for appliances > 10,000 Btuh (3kw)
and<100,000 Btuh (30kw),
36 inches (.9m)for appliances > 100,000 Btuh (30kw)
6 feet (1.8m)
(30cm)
ST-A1194-18
FIGURE A
ST-A1194-18
FIG. A
65