24
REAR VENTING
Natural Gas Installations
Horizontal Terminations
Combination Venting
Horizontal vent sections require ¼ in (6 mm) rise for every 12 in (305 mm) of travel.
NG - Minimum / Maximum Horizontal Venting
Minimum Horizontal Length
(HMIN)
Maximum Horizontal Length
(HMAX)
6 in
152 mm
48 in
1219 mm
NG - Minimum / Maximum Vertical Terminations
Horizontal to
Vertical Venting
Minimum Vertical
Length
Maximum
Vertical Length
90° elbow
6 ft
1.83 m
40 ft
12.2 m
NG - Max Vertical / Max Horizontal Combination
Maximum
Vertical Rise
Maximum
Horizontal Run
Total Length
10 ft
3.1 m
20 ft
6.1 m
30 ft
9.2 m
Maximum number of 90° elbows: 4
Rear Vent NG Combination Venting (H/V)
REAR VENTING DIAGRAM (VERTICAL & HORIZONTAL TERMINATIONS)
NG - 90° ELBOW + 6ft (9.2m) V
MIN
/ 40ft (12.2m) V
MAX
NG - 6” (152mm) H
MIN
/ 48” (1219mm) H
MAX
V
MIN
V
MAX
B
C
H
MIN
H
MAX
C
(A)
Stand-off Brackets
(B)
(C)
90
°
Elbow
Termination Cap
A
A
INSTALLATION
IMPORTANT
Содержание AH3024FP
Страница 46: ...46 NOTES...
Страница 47: ...47 NOTES...
