Quadra-Fire QV36A-FB D. Vent Diagrams, Top Vent - Horizontal Termination One Elbow, Two Elbows

D. Vent Diagrams

WARNING

Fire Risk. Explosion Risk.

Do NOT pack insulation or other combustibles between ceiling firestops.

•ALWAYS maintain specified clearances around venting and firestop systems.

•Install wall shield and ceiling firestops as specified.

Failure to keep insulation or other material away from vent pipe may cause fire.

1.Top Vent - Horizontal Termination One Elbow

V1

H1

Figure 5.3

Two Elbows

Note: Must have a 12 inches minimum vertical vent before attaching a 90° elbow to the unit.

H2 H1

V1 Minimum		H1 Maximum
1 ft.	305 mm	3 ft	924 mm
2-1/2 ft.	762 mm	6 ft	1.8 m
3-1/2 ft.	1.7 m	9 ft	2.7 m
4 ft.	1.2 m	10 ft	3.1 m
4-1/2 ft.	1.4 m	12 ft	3.7 m
5-1/2 ft.	1.7 m	15 ft	4.6 m
6-1/2 ft.	2 m	18 ft	5.5 m
7-1/2 ft.	2.3 m	21 ft	6.4 m

H1 = 21 ft. (6.4 m) Maximum

V1 = 40 ft. (12.2 m) Maximum

V1 + H1 = 30 ft. (9.1 m) Maximum*

Note: Must have a 12 inch minimum vertical vent before attaching a 90° elbow to the unit.

*If the horizontal component is less than 5 feet then the total vent run can be extended to 40 feet.

	V1 Minimum		H1 + H2 Maximum
	1 ft.	305 mm	3 ft	924 mm
	2-1/2 ft.	762 mm	6 ft	1.8 m
	3-1/2 ft.	1.7 m	9 ft	2.7 m
	4 ft.	1.2 m	10 ft	3.1 m
	4-1/2 ft.	1.4 m	12 ft	3.7 m
	5-1/2 ft.	1.7 m	15 ft	4.6 m
	6-1/2 ft.	2 m	18 ft	5.5 m
	7-1/2 ft.	2.3 m	21 ft	6.4 m
	V1 = 40 ft. (12.2 m) Maximum
	H1 + H2 = 21 ft. (6.4 m) Maximum
	V1 + H1 + H2= 30 ft. (9.1 m) Maximum*
V1

* If the horizontal component is less than 5 feet then the total vent run can be extended to 40 feet.

INSTALLED

HORIZONTALLY

Figure 5.4

14 Quadra-Fire • Expression 36 (QV36A-FB) • 2062-900 Rev. S • 11/11