Heatiator CD4842ILR-C, CD4236ILR-C, CD4236IR-C Rear Vent Horizontal Termination Two Elbows

Rear Vent - Horizontal Termination - (continued)

Two Elbows

H1 Maximum		V1 Minimum			H2		H1 + H2 Maximum
1 ft.	305 mm	Back to Back		1 ft.		305 mm	2 ft.	610 mm
		90º Elbows
2 ft.	610 mm	6 in.	152 mm	2 ft.		610 mm	4 ft.	1.2 m
3 ft.	914 mm	1 ft.	305 mm	2 ft.		610 mm	5 ft.	1.5 m
3 ft.	914 mm	2 ft.	610 mm	4 ft.		1.2 m	7 ft.	2.1 m
3 ft.	914 mm	3 ft.	914 mm	9 ft.		2.7 m	12 ft.	3.7 m
3 ft.	914 mm	4 ft	1.2 m	17 ft.		5.2 m	20 ft.*	6.1 m*
V1 + H1 + H2 = 40 ft. (12.2 m) Maximum					H1	= 3 ft. (914 mm) Maximum
		*H1 + H2 = 20 ft (6.1 m) Maximum

H2

Figure 7.16

Three Elbows

INSTALLED

HORIZONTALLY

V1

H1

H1 Maximum		V1 Minimum		H2+ H3		H1+ H2+ H3 Max.
1 ft.	305 mm	Back to Back		1 ft.	305 mm	2 ft.	610 mm
		90º Elbows
2 ft.	610 mm	6 in.	152 mm	1.5 ft.	457 mm	3.5 ft.	1.1 m
3 ft.	914 mm	1 ft.	305 mm	2 ft.	610 mm	5 ft.	1.5 m
3 ft.	914 mm	2 ft.	610 mm	4 ft.	1.2 m	7 ft.	2.1 m
3 ft.	914 mm	3 ft.	914 mm	9 ft.	2.7 m	12 ft.	3.7 m
3 ft.	914 mm	4 ft.	1.2 m	12 ft.	3.7 m	15 ft.	4.6 m
V1+ H1+ H2+ H3= 40 ft. (12.2 m) Maximum					H1= 3 ft. (914 mm) Maximum
		H1+ H2+ H3= 20 ft. (6.1 m) Maximum

H3H2

V1

H1

Figure 7.17

34 Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11