DVS 30-2 installation instructions DVS-36 & DVS-42 Framing and Finishing

DVS-36 & DVS-42 FRAMING AND FINISHING (continued)

Cut a 10-1/2 inch x 10-1/2 inch hole through the ceiling, using the center point previously marked. Frame the hole with framing lumber the same size as the ceiling joists. (See Figure 36) If the area above the ceiling is NOT an attic, position and secure the ceiling firestop (SD-1263) on the ceiling side of the previously cut and framed hole. (See Figure 37) If the area above the ceiling is an attic, position and secure the firestop on top of the previously framed hole. (See Figure 38)

NOTE: Remove insulation from the framed area in the attic before installing the firestop and/or vent pipe.

NAILS, 4 REQUIRED

CEILING FIRESTOP

	"
10	1/2
267mm

	"
10	1/2
	m
267m

Figure 38

HORIZONTAL TERMINATION (For All Models)

NOTE: Termination cap should pass through the wall firestop from the exterior of the building. Adjust the termination cap to its final exterior position on the building.

WARNING: Termination cap must be positioned so that arrow is pointing up.

Attach the termination cap with the four wood screws provided. Before attachment of the termination, run a bead of silicone sealant rated above 250° F on its outside edge too, so as to make a seal to the exterior wall.

NOTE: Wood screws can and should be replaced with appropriate fasteners for use on stucco, brick, concrete or other types of siding.

CAUTION: If exterior walls are finished with vinyl siding, it is necessary to install the vinyl siding standoff SD-950 for DVS-30 or SD-1250 for DVS-36/42.

Vinyl siding standoff SD-950 for DVS-30 or SD-1250 for DVS-
36/42 will be installed between the vent termination and the
exterior wall. (See Figure 39) This horizontal vent termination
bolts onto the flat portion of the vinyl siding standoff, so an air
space will exist between the wall and the termination cap.	Figure 39

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