Lenoxx L30 BF-2 Manuale Utente
INSTALLATION
See Pipe Manufacturers clearances for Pipe Clearances Venting Requirements
EXAMPLES OF VENTING INSTALLATION APPLICATIONS
PAGE 7
Model: L30 BF-2 (B-Vent) Venting Requirements
Approved for vertical termination only.
Maximum Horizontal Pipe Runs for Given Vertical Pipe
Run (in feet)
Run (in feet)
Vertical run
in feet
in feet
5’
6’
8’
10’
15’
20’
Maximum
horizontal
run in feet
horizontal
run in feet
4’
6’
8’
10’
15’
20’
Note: Maximum allowable horizontal pipe run is 20
feet.
feet.
Venting Configuration Requirements:
A minimum of 5 feet vertical pipe is required to vent the
appliance. Lengthy horizontal pipe runs require sufficient
length of vertical pipe to deliver adequate draft. Use the
table above as a guide in planning your installation. The
use of multiple 45° or 90° elbows should be compen-
sated by providing additional vertical pipe run.
A minimum of 5 feet vertical pipe is required to vent the
appliance. Lengthy horizontal pipe runs require sufficient
length of vertical pipe to deliver adequate draft. Use the
table above as a guide in planning your installation. The
use of multiple 45° or 90° elbows should be compen-
sated by providing additional vertical pipe run.
This appliance has a 4” B-Vent flue collar and may be
installed with listed B-Vent piping and components.
Refer to the pipe manufacturer’s installation instructions
for specific requirements for their product. Maintain
proper clearances to combustible materials as specified
by the pipe manufacturer. Whenever vent pipe is run
horizontally, maintain a minimum 1/4” rise per foot. Exte-
rior B-Vent exhaust systems should be enclosed in a
chase to avoid rapid cooling of exhaust gases in the
vent. Such cooling could produce condensation of flue
gases or exhaust gas spillage. The use of a chase is
highly recommended in colder climates.
installed with listed B-Vent piping and components.
Refer to the pipe manufacturer’s installation instructions
for specific requirements for their product. Maintain
proper clearances to combustible materials as specified
by the pipe manufacturer. Whenever vent pipe is run
horizontally, maintain a minimum 1/4” rise per foot. Exte-
rior B-Vent exhaust systems should be enclosed in a
chase to avoid rapid cooling of exhaust gases in the
vent. Such cooling could produce condensation of flue
gases or exhaust gas spillage. The use of a chase is
highly recommended in colder climates.
VERTICAL VENT TERMINATION REQUIREMENTS
The vent termination clearances above the high side of an
angled roof is follows:
angled roof is follows:
Ref. NFPA 54 / ANSI Z223.1, 7.6
Roof Pitch Feet Meters
Flat to 6/12
Flat to 6/12
1.0
0.3
6/12 to 7/12
1.25
0.38
7/12 to 8/12
1.5
0.46
8/12 to 9/12
2.0
0.61
9/12 to 10/12
2.5
0.76
10/12 to 11/12
3.25
0.99
11/12 to 12/12
4.0
1.22
12/12 to 14/12
5.0
1.52
14/12 to 16/12
6.0
1.83
16/12 to 18/12
7.0
2.13
18/12 to 20/12
7.5
2.29
21/12 to 21/12
8.0
2.44