Owner`s manual

32084-3-0813Page 24
Figure 36
US Installation
1
A = Clearance above any grade, veranda, porch or balcony 12 in (30 cm)
B = Clearance to window or door that may be opened
6 in (15 cm) for appliances ≤ 10,000 Btu/h (3 kW), 9 in (23 cm) for ap-
pliances > 10,000 Btu/h (3 kW) and ≤ 50,000 Btu/h (15 kW), 12 in (30
cm) for appliances > 50,000 Btu/h (15 kW)
C = Clearance to permanently closed windows *
D =
Vertical clearance to ventilated soft located above the terminal
within a horizontal distance of 2 ft (61 mm) from the center line of the
terminal
*
E = Clearance to unventilated soft *
F = Clearance of outside corner *
G = Clearance of inside corner *
H =
Clearance to each side of center line extended above meter/regulator
assembly
* 3 feet
I = Clearance to service regulator vent outlet 3 feet
J =
Clearance to non-mechanical air supply inlet to building or the com-
bustion air inlet to any other appliance
6 in (15 cm) for appliances ≤ 10,000 Btu/h (3 kW), 9 in (23 cm) for ap-
pliances > 10,000 Btu/h (3 kW) and ≤ 50,000 Btu/h (15 kW), 12 in (30
cm) for appliances > 50,000 Btu/h (15 kW)
K = Clearance to a mechanical air supply inlet 3 ft (91 cm) above if within 10 ft (3 m) horizontally
L =
Clearance above paved sidewalk or paved driveway located on public
property †
7 feet
M = Clearance under veranda, porch deck, or balcony ¥ 12 inches
1
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.
¥
Permitted only if veranda, porch, deck or balcony is fully open on a
minimum of two sides beneath the oor.
*
For clearances not specied in ANSI Z223.1/NFPA 54 or CSA B149.1,
refer to local codes.
VENT CLEARANCES
WALL FURNACE INSTALLATION