Desa (V)V36EP-B Venting Installation instructions, Continued, Venting with Two 90 Elbows

Venting Installation instructions

Continued

SNORKEL TERMINATION INSTALLATION

Recommended Applications:

• Installations requiring a vertical rise on building exterior

• Any installation using snorkel termination to achieve one foot above ground

Snorkel terminations are available for installations requiring a vertical rise on the exterior of the building. If installing snorkel termina- tion below grade, you must provide proper drainage to prevent water from entering snorkel termination (see Figure 16). Do not back fill around snorkel termination.

Snorkel Termination

Snorkel

Termination

12"

Minimum

Snorkel		Wall
Termination
		Firestop
	90° Elbow

12"

Minimum 45° Elbow

Adequate

Drainage

12"

Minimum

Figure 16 - Snorkel Termination Configurations for Below Ground Installation

HORIZONTAL SYSTEM INSTALLATION USING TWO 90° ELBOWS

The following configurations show the minimum vertical rise requirements for a horizontal system using two 90° elbows.

Venting with Two 90° Elbows

Vertical (V)	Horizontal	Horizontal (H1) +
	(H1)	Horizontal (H2)
5' min.	2' max.	6' max.
6' min.	4' max.	12' max.
7' min.	6' max.	18' max.
8' min.	8' max.	20' max.
20' max.	8' max.	20' max.

45° Elbow

Venting with Two 90° Elbows

Vertical (V) Horizontal (H1)
	Horizontal (H2) 45° Elbow
5' min.	6' max.
6' min.	12' max.
7' min.	18' max.
8' min.	20' max.
20' max.	20' max.

Figure 18 - Horizontal Termination Configuration for Venting Using Two 90° Elbows with Termination at 90° with Fireplace

Figure 17 - Horizontal Termination Configuration for Venting

Using Two 90° Elbows

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