Справочник Пользователя для Majestic Appliances 33LDVR

18

BG401

Snorkel

2/10/99   djt

Foundation Recess

Snorkel

Wall Screws

Recess Brackets

Watertight Seal 

Around Pipe

Sheet Metal 

Screws

BG401

Fig. 32  Snorkel installation, recessed foundation.

BG400

Below grade installation

2/10/99   djt

10/19/99  added standoffs

24" (610mm)

Minimum*

Zero Clearance 

Sleeve 

(if required)

Firestop

7” Pipe

7TDVSNORK 

(Snorkel)

4” (102mm) 

Clearance 

Min.

Window 

Well

Gravel

Drain

Foundation Wall

BG400

Fig. 31   Below grade installation.

*A minimum of 24” (608mm) 

vertical pipe must be installed 

when using 7TDVSNORK Kit.

If the foundation is recessed, use recess brackets (not 

supplied) for securing lower portion of the snorkel.  

Fasten brackets to wall first, then secure to snorkel 

with self drilling #8 x 1/2 sheet metal screws. It will be 

necessary to extend vent pipes out as far as protruding 

wall face. (Fig. 32)

This Gas Fireplace has been approved for: 

1.  Vertical installations up to 40ʼ (12 m) in height. Up to 

10ʼ (3 m) horizontal vent run can be installed within 

the vent system using a maximum of three 90° 

elbows.

 CFM148

Maximum 

10ʼ

(3 m)

Minimum

8ʼ (2.4 m) / 

Maximum

40ʼ (12 m) Vertical

Rise

CFM148

Pipe Straps Every 

3ʼ (914 mm)

Fig. 33  Support straps for horizontal runs.

This Gas Fireplace has been approved for: 

1.  Vertical installations up to 40ʼ (12 m) in height. Up to 

10ʼ (3 m) horizontal vent run can be installed within 

the vent system using a maximum of three 90° 

elbows.

2.  Up to two 45° elbows may be used within the 

horizontal run. For each 45° elbow used on the 

horizontal level the maximum horizontal length must 

be reduced by 18” (457 mm). 

  Example: Maximum horizontal length

  0 x 45° elbows  =  10ʼ (3 m)

  1 x 45° elbows  =  8¹⁄₂ʼ (2.6 m)

  2 x 45° elbows  =  7ʼ (2.1 m)

3.  A minimum of an 8ʼ vertical rise.

4.  Two sets of 45° elbows offsets within these vertical 

installations. From 0 to a maximum of 8ʼ (2.4 m) of 

vent pipe can be used between elbows. (Fig. 34)

5.  7DVCS must be used to support offsets. (Fig. 34) 

This application will require that you first determine 

the roof pitch and use the appropriate 7DVSKV (A, B 

or F). (Refer to Venting Components List, Page 21)