Vermont Casting 2822, 820, 2828, 2823 Vent Termination Below Grade, Measure the horizontal length

Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater

6.Seal and install the elbow using 3 sheet metal screws at each joint.

7.Measure, and cut if needed, the appropriate length of pipe section needed to make the connection through the wall. Include a 2Ó overlap; i.e. from the elbow to the outside wall face, about 2Ó or the distance required if installing a second 90° elbow. (Fig. 25)

8.Slip the wall plate and trim collar over the interior end of the horizontal pipe and install into the wall sleeve. Seal the joint inside the wall plate if needed to keep cold air from being drawn into the home.

9.Seal the ends and connect the horizontal pipe to the elbow. Fasten the wall plate to the pipe with three sheet metal screws. Slide the trim collar up against the wall plate to cover the screws. (Fig. 26)

X

ST215

Fig. 25 Measure the horizontal length.

Trim Collar

Wall

Sleeve

ST216 Wall Plate

Fig. 26 Install the horizontal pipe and wall plate parts.

10.For both CFM and DuraVent Systems: Install the vent terminal. (Fig. 27) Apply high temperature sealant one inch from the ends of the inner and outer collars. Guide the inner and outer vent termi- nation collars into the adjacent pipes. Double check that the vent pipes overlap the collars by 2Ó. Fasten the termination to the wall with the screws provided, and caulk the joint with weatherproof sealant.

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

Seal Both

Terminal Ends

Caulk Plate Joint with	ST217
Weatherproof Sealant

Fig. 27 Install the vent terminal.

Vent Termination Below Grade

Install Snorkel Kit #7FSDVSKS when it is not possible to meet the required vent termination clearances of 12Ó (305mm) above grade level. The snorkel kit will allow installation depth of down to 7Ó (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. 28)

NOTE: Be sure to maintain side wall clearances and vent run restrictions. Refer to Figures 3, 4, 7, and 8.

1.Establish the vent hole through the wall.

2.Remove soil to a depth of approximately 16Ó (400mm) below the base of the snorkel. Install a window well (not supplied). Refill the hole with 12Ó (305mm) of coarse gravel and maintain a clearance of at least 4Ó (100mm) below the snorkel. (Fig. 28)

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 4Ó clearance below the snorkel.

If the foundation is recessed, use extension brackets (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 1/2Ó sheet metal screws. Extend the vent pipes out as far as the protruding wall face. (Fig. 29)

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