TOA Electronics 600 Horizontal Vent Figures/Tables, Top Vent - ONE 90 DEGREE ELBOW, V Minimum

HORIZONTAL VENT FIGURES/TABLES

Note: Secure Vent components (rigid vent pipe and terminal) are shown in the figures; Secure Flex components (flexible vent pipe and terminal) may also be used.

Note: Two 45 degree elbows may be used in place of one 90 degree elbow. The same rise to run ratios, as shown in the venting figures for 90 elbows, must be followed if 45 degree elbows are used.

Note: SV4.5BF (Secure Vent), SF4.5BF (Secure Flex) firestop/spacer must be used anytime vent pipe passes through a combustible floor or ceiling. SV4.5HF (Secure Vent), SF4.5HF (Se- cure Flex) firestop/spacer must be used anytime vent pipe passes through a combustible wall.

WARNING: UNDER NO CIRCUM- STANCES MAY SEPARATE SECTIONS OF CONCENTRIC FLEXIBLE VENT PIPE BE JOINED TOGETHER.

Note: It is very important that the horizontal/ inclined run be maintained in a straight (no dips) and recommended to be in a slightly elevated plane, in a direction away from the fireplace of ¹⁄₄" rise per foot (20 mm per meter) which is ideal, though rise per foot run ratios that are smaller are acceptable all the way down to at or near level.

TABLE 3

Venting Components Required for Various Exterior Wall Thicknesses, When Using Any of These Termination Kits - Square Termination (SV4.5HTS),

Small Square Termination (SV4.5HTSS)

Round Termination (SV4.5HTR)

Venting Components	Exterior Wall Thickness
Required	inches (mm)
Termination Kit Only	5 to 9 1/4 (127 to 235)
Termination Kit and 6 in. vent	9 1/4 to 13 3/4 (235 to 349)
section (SV4.5L6)
Termination Kit and12 in. vent	15 3/4 to 19 3/4 (400 to 502)
section (SV4.5L12)
Termination Kit and Telescopic
section (SV4.5LA) and 6 in.	10 3/4 to 20 3/4 (273 to 527)

Square termination (SV4.5HTS) shown; Round Termination (SV4.5HTR) may also be used.

Small Square termination (SV4.5HTSS) may only be used on DT-500 and D-500 models.

H

TABLE F

V = 0ne 90 degree elbow H = 3 feet (0.914 m) Max.

V

vent section (SV4.5L6)

Round Termination (SV4.5HTR) may not be used.

H = 28 in. (711 mm) Maximum.

*When using Secure Flex,	H
use Firestop/Spacer
SF4.5HF
	*Wall Firestop/Spacer

*When using Secure Flex,	*Wall
use Firestop/Spacer	Firestop/Spacer
SF4.5HF	(SV4.5HF)

See Table 3 as an aid in venting component selection for a particular range of exterior wall thicknesses.

Figure 38 - Top Vent - ONE 90 DEGREE ELBOW -

ELBOW CONNECTION AT APPLIANCE

(SV4.5HF)

7 in. (178 mm)

See Table 3 as an aid in venting component selection for a particular range of exterior wall thicknesses.

Figure 36 - Rear Vent - NO ELBOWS - Square Horizontal Termination (SV4.5HTS)

Round Termination (SV4.5HTR) may not be used.

H = 28 in. (711 mm) Maximum.

TABLE G

V Minimum		H Maximum
feet	(m)	feet	(m)
1	(0.305)	5	(1.52)
2	(0.61)	10	(3.1)
3	(0.914)	15	(4.65)
4	(1.22)	20	(6.2)

V + H = 40 feet (12.4 m) Max. H = 20 feet (6.2 m) Max.

Square termination (SV4.5HTS) shown; Round Termination (SV4.5HTR) may also be used.

Small Square termination (SV4.5HTSS) may only be used on DT-500 and D-500 models.

H

**When using Secure	H
Flex, use Firestop/Spacer
SF4.5HF

**Wall Firestop/Spacer

(SV4.5HF)

**When using Secure
Flex, use Firestop/Spacer	V
SF4.5BF

8³⁄₁₆ in. (207 mm)	*When using Secure Flex,	**Wall Firestop/Spacer
		(SV4.5HF)
	use Firestop/Spacer
	SF4.5HF	*Ceiling
		Firestop/Spacer
		(SV4.5BF)
See Table 3 as an aid in venting component selection for a particular	See Table 3 as an aid in venting component selection
range of exterior wall thicknesses.	for a particular range of exterior wall thicknesses.
Figure 37 - Rear Vent - NO ELBOWS - for D-500 and DR-500 models	Figure 39 - Top Vent - ONE 90 DEGREE ELBOW -
only - Small Square Horizontal Termination (SV4.5HTSS)	ELBOW CONNECTION NOT DIRECTLY AT APPLIANCE

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

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