Desa CTDV36NRA, VT36PA, VT36NA Installing Horizontal Vent Cap Noncombustible Exterior

VENTING INSTALLATION INSTRUCTIONS

Installation Planning (Cont.)

9

VENTING INSTALLATION INSTRUCTIONS

Continued

Combustible Exterior Wall: For vinyl siding, stucco, or wood exteriors, a siding standoff must be installed between the vent cap and exterior wall. The siding standoff prevents excessive heat from damaging the siding materials. Siding material must be cut to accommodate standoff. Bolt the vent cap to the stand- off. Apply non-hardening mastic around outside edge of stand- off. Position the standoff/cap assembly in the center of the 10" square hole and attach to exterior wall with wood screws pro- vided (see Figure 11). The siding standoff must sit flush against the exterior fascia material.

7.Combustible Exterior Wall Only: Slide the wall firestop over the vent pipe before connecting horizontal run to vent cap (see Figure 12).

8.Carefully move fireplace, with vent assembly attached, toward wall and insert vent pipe into horizontal termination. The pipe overlap should be a minimum of 11/4".

9.Combustible Exterior Wall Only: Slide wall firestop against interior wall surface and attach with screws provided. See Figure 13, page 10 for horizontal termination details.

10.Place fireplace into position and shim with noncombustible ma- terial if needed. Nail or screw side flanges to framing to secure unit in place. IMPORTANT: Make sure fireplace is level before securing. If fireplace is not level it will not work properly.

Vent Cap

Wood Screw

Figure 10 - Installing Horizontal Vent Cap (Noncombustible Exterior)

Cut Siding Away to Fit Standoff

Standoff

Wood Screw

Vent Cap

Screws

Apply Mastic

to All Four Sides

Figure 11 - Installing Siding Standoff (Combustible Exterior)

Interior Wall

Surface

Wall

Firestop

Vent Cap	Horizontal
(Horizontal
	Vent Pipe
Termination)

Screw

Figure 12 - Connecting Vent Cap with Horizontal Vent Pipe

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111250-01A