Bosch 940 ES Installation And Operating Instructions Manual page 23

Indoor model natural gas/ liquefied petroleum (lp) gas
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J
Clearance to non-mechanical air supply inlet to building or the
combustion air inlet to any other application
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 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.
Table 20
[*]
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 section 2.20, or;
b) A reference to the following footnote:
"Clearance in accordance with local installation codes and the requirements of the gas supplier."
940 ES – 6 720 644 930 (2019/09)
1)
Canadian installations
36 in.
72 in.
3)
84 in.
4)
12 in.
Installation instructions
2)
U.S. installations
4 feet below or to side of
opening;
1 foot above opening
36 in. above if within 10 feet
horizontally
84 in.
*
23

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