Quadra-Fire 839-1390, 839-1460, SAPPH-D-CWL, SAPPH-D-CSB, 839-1440 Step, Fire Risk Explosion Risk

Step 9.

Twist-lock the vent cap and seal.

Note: For multi-story vertical installations, a ceiling firestop is required at the second floor, and any subsequent floors (Figure 5.16). The opening should be framed to 10 in. x 10 in. (254mm x 254mm) inside dimensions, in the same manner as shown in Figure 5.13, page 16.

NAILS

CEILING FIRES TOP

MIN. 1 in. (25mm)

CLEARANCE

MIN. 1 in. (25mm)

CLEARANCE

MIN. 1 in. (25mm)

CLEARANCE

MIN. 1 in. (25mm)

CLEARANCE

Figure 5.16

WARNING

Fire Risk.

Explosion Risk.

•Any occupied areas above the first floor, including closets and storage spaces, which the vertical vent passed through must be enclosed. The enclosure may be framed and sheetrocked with standard construction materials; however, refer to these installation instructions for the minimum allowable clearance between the outside of the vent pipe and the combustible surfaces of the enclosure. Do not fill any of the required air space with insulation.

January 28, 2008 Quadra-Fire · Sapphire · 250-7233E Page 17