Vermont Casting 3225 ユーザーズマニュアル

18

18

Note that all vertically terminated installations 
must, where specified, use the restrictor plate to 
comply with Vertical Termination Window (Page 
7, Figure 8), included in the hardware bag. The plate 
must be installed within the firebox inner flue collar to 
insure a proper air/fuel ratio is maintained in an appli-
ance vented through the roof.

ST653

install snorkel

4/20/01   djt

RADIANCE

Waterproof Seal 

Around Pipe

Firestop

Window Well

Drain

4” Clearance

Snorkel 

Termination 

Cap

Wall Screws 

and Anchors

ST653

Gravel

Fig. 31  Snorkel kit installation.

Install Snorkel Kit #7FSDVSKS when it is not possible 
to meet the required vent termination clearances of 12” 
(305mm) above grade level. The snorkel kit will allow 
installation depth of down to 7” (178mm) below grade 
level. The seven inches is measured from the center of 
the horizontal vent pipe as it penetrates the wall. If the 
venting system is installed below grade, a window 
well must be installed with adequate and proper 
drainage. (Fig. 31)

NOTE: Be sure to maintain side wall clearances and 
vent run restrictions. Refer to Page 6, Figures 3, 4, 5, 6.

1.  Establish the vent hole through the wall.
2.  Remove soil to a depth of approximately 16” (406 mm) 

below the base of the snorkel. Install a window well 
(not supplied). Refill the hole with 12” (305mm) of 
coarse gravel and maintain a clearance of at least 4” 
(102 mm) below the snorkel. (Fig. 31)

3.  Install the vent system as described on pages 15-18.
4.  Be sure to make a watertight joint around the vent 

pipe joint at the inside and outside wall joints.

5.  Apply high temperature sealant around the inner 

and outer snorkel collars. Join the pipes and fasten 
the snorkel termination to the wall with the screws 
provided.

6.  Level the soil to maintain a 4” clearance below the 

snorkel.

  If the foundation is recessed, use extension brack-

ets (not supplied) to fasten the lower portion of the 
snorkel. Fasten the brackets to the wall first, and 
then fasten to the snorkel with self-tapping #8 x 1/2” 
sheet metal screws. Extend the vent pipes out as far 
as the protruding wall face. (Fig. 30)

ST219

snorkel detail

12/6/99   djt

Recessed Wall

Sheet Metal 

Screws and 

Bracket

Wall Screws 

and Anchors

Waterproof Seal 

Around Pipe

ST219

Fig. 30  Use extension brackets to mount snorkel against 
recessed wall.

Firestop

Finishing 

Collar

7” Pipe

Wall Plate

ST217

install wall terminal

12/6/99   djt

Seal Both Termi-

nal Ends

Caulk Plate Joint with 

Weatherproof Sealant

ST217

Fig. 29  Install the vent terminal.

11. For CFM only: Install Charcoal Gray Pipe Rings 
(#7FSDRG) or Polished Brass Pipe Rings (#7FSDRP) 
at pipe joints, if desired.