6 720 816 815 (2016/10)
Greentherm 9800 SE 160/199 | SEC 199
Installation instructions | 21
Required direct vent terminal clearances (twin pipe / concentric penetration)
Fig. 10
[*]
For clearances not specified in ANSI Z223.1 / NFPA 54 or CSA-B149.1, one of the following shall be indicated:
a) a minimum clearance value determined by testing in accordance with Clause 5.20, Draft hoods, or;
b) a reference to the following footnote:
“Clearance in accordance with local installation codes and the requirements of the gas supplier.”
Canadian installations
1)
with direct vent terminals
U.S. installations
2)
with
direct vent terminals
A
Clearance above grade, veranda, porch, deck or balcony
12 in. (30cm)
12 in. (30cm)
B
Clearance to window or door that may be opened
36 in. (91cm)
12 in. (30cm) below or to
side of opening; 12 in.
(30cm) above opening.
C
Clearance to permanently closed window
*
*
D
Vertical clearance to ventilated soffit located above the terminal within a
horizontal distance of 2 ft (61cm) 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
36 in. (91cm) within a height
15 ft (4.6m) above the meter/
regulator assembly
*
I
Clearance to service regulator vent outlet
36 in. (91cm)
*
J
Clearance to nonmechanical air supply inlet to building or the combustion air
inlet to any other appliance.
36 in. (91cm)
12 in. (30cm)
K
Clearance to a mechanical air supply inlet
6 feet (1.83m)
36 in. (91cm) above if
within 10 ft (3m)
horizontally
L
Clearance above paved sidewalk or paved driveway located on public property 7 ft (2.13m)
3)
*
M
Clearance under veranda, porch deck or balcony
12 in. (30cm)
4)
*
Table 9
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.
3)
A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings.
4)
Permitted only if veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor.
Содержание Greentherm 9800 SE 160/199
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