TOA Electronics 600 installation instructions Vertical Straight Installation

VERTICAL TERMINATION SYSTEMS (ROOF)

Figure 17, and Figures 27 through 31 on pages 13 and 14 and their associated Vertical Vent Tables illustrate the various verti- cal venting configurations that are possible for use with these appliances. Secure Vent pipe applications are shown in these figures; Secure Flex pipe may also be used. A Vertical Vent Table summarizes each system’s minimum and maximum vertical and horizontal length values that can be used to design and install the vent components in a variety of applications.

Both these vertical vent systems terminate through the roof. The minimum vent height above the roof and/or adjacent walls is speci- fied in ANSI Z223.1-(latest edition) (In Canada, the current CAN-1 B149 installation code) by major building codes. Always consult your local codes for specific requirements. A gen- eral guide to follow is the Gas Vent Rule (refer to Figure 4 on page 5).

Vertical (Straight) Installation

Determine the number of straight vent sections required. 4 ¹⁄₂" (114 mm), 10 ¹⁄₂" (267 mm), 22 ¹⁄₂" (572 mm), 34 ¹⁄₂" (876 mm) and 46 ¹⁄₂" (1181

mm)net section lengths are available. Plan the vent lengths so that a joint does not occur at the intersection of ceiling or roof joists. Refer to the Vent Section Length Chart.

SV4.5CGV-1	SV4.5FA OR
Termination
	SV4.5FB Flashing
	AND SV4.5SC
	STORM COLLAR

			1" (25.4 mm)
			Minimum
			Clearance to
			Combustibles
			*SV4.5BF
			Firestop/Spacer
40'	Max		SV4.5L6/12/24/36/48
(12.2		M)
			Vent Sections
			*When using Secure Flex,
			use Firestop/Spacer
			SF4.5BF

VENT SECTION LENGTH CHART

Nominal Section			6		12	24	36		48	T
Length (inches)										O
										T
Net	Section
			4-1/2		10-1/2	22-1/2	34-1/2	46-1/2		A
Length (inches)
										L
Height of Vent				Number of Vent Sections						Q
inches		ft								T
										Y
4.5		0.375	1		0	0	0		0	1
9		0.75	2		0	0	0		0	2
10.5		0.875	0		1	0	0		0	1
15		1.25	1		1	0	0		0	2
19.5		1.625	2		1	0	0		0	3
21		1.75	0		2	0	0		0	2
22.5		1.875	0		0	1	0		0	1
25.5		2.125	1		2	0	0		0	3
31.5		2.625	0		3	0	0		0	3
34.5		2.875	0		0	0	1		0	1
37.5		3.125	1		1	1	0		0	3
43.5		3.625	0		2	1	0		0	3
45		3.75	0		0	2	0		0	2
46.5		3.875	0		0	0	0		1	1
49.5		4.125	1		0	2	0		0	3
51		4.25	1		0	0	0		1	2
55.5		4.625	0		1	2	0		0	3
57		4.75	0		0	1	1		0	2
66		5.25	0		2	2	0		0	4
67.5		5.625	0		0	3	0		0	3
69		5.75	0		0	0	2		0	2
72		6	1		0	3	0		0	4
73.5		6.125	1		0	0	2		0	3
79.5		6.625	0		1	0	2		0	3
81		6.75	0		0	0	1		1	2
90		7.5	0		2	1	0		1	4
91.5		7.625	0		0	2	0		1	3
93		7.75	0		0	0	0		2	2
96		8	1		0	1	2		0	4
97.5		8.125	1		0	0	0		2	3
102		8.5	2		0	0	0		2	4
103.5		8.625	0		0	0	3		0	3
108		9	1		0	0	3		0	4
114		9.5	0		2	0	0		2	4
117		9.75	1		0	5	0		0	6
118.5		9.875	1		1	0	3		0	5
126		10.5	0		0	1	3		0	4
130.5		10.875	1		0	1	3		0	5
135		11.25	0		0	6	0		0	6
138		11.5	0		0	0	4		0	4
139.5		11.625	0		0	0	0		3	3
142.5		11.875	1		0	0	4		0	5

VENT SECTION LENGTH CHART

Nominal Section		6		12	24	36	48	T
Length (inches)								O
								T
Net	Section
		4-1/2		10-1/2	22-1/2	34-1/2	46-1/2	A
Length (inches)
								L
Height of Vent			Number of Vent Sections					Q
inches	ft							T
								Y
144	12	1		0	0	0	3	4
150	12.5	0		1	0	0	3	4
154.5	12.875	1		1	0	0	3	5
160.5	13.375	0		2	0	0	3	5
172.5	14.375	0		0	0	5	0	5
177	14.75	1		0	0	5	0	6
183	15.25	0		1	0	5	0	6
186	15.5	0		0	0	0	4	4
190.5	15.875	1		0	0	0	4	5
196.5	16.375	0		1	0	0	4	5
205.5	17.125	0		1	1	5	0	7
207	17.25	0		0	0	6	0	6
211.5	17.625	1		0	0	6	0	7
217.5	18.125	0		1	0	6	0	7
229.5	19.125	0		0	1	6	0	7
232.5	19.375	0		0	0	0	5	5
237	19.75	1		0	0	0	5	6
241.5	20.125	0		0	0	7	0	7
246	20.5	1		0	0	7	0	8
252	21	0		1	0	7	0	8
264	22	0		0	1	7	0	8
276	23	0		0	0	8	0	8
279	23.25	0		0	0	0	6	6
280.5	23.375	1		0	0	8	0	9
283.5	23.625	1		0	0	0	6	7
289.5	24.125	0		1	0	0	6	7
301.5	25.125	0		0	1	0	6	7
310.5	25.875	0		0	0	9	0	9
315	26.5	1		0	0	9	0	10
325.5	27.125	0		0	0	0	7	7
330	27.5	1		0	0	0	7	8
336	28	0		1	0	0	7	8
345	28.75	0		0	0	10	0	10
349.5	29.125	1		0	0	10	0	11
372	31	0		0	0	0	8	8
376.5	31.375	1		0	0	0	8	9
379.5	31.625	0		0	0	11	0	11
418.5	34.875	0		0	0	0	9	9
423	35.25	1		0	0	0	9	10
465	38.75	0		0	0	0	10	10

10

Figure 17

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.