Framing and Finishing

Installing Support Brackets (Figure 49)

Ahorizontal pipe support MUSTBE used for each 3 feet of horizontal run. The pipe supports should be placed around the pipe and nailed in place to framing members. There MUST BE a 3 inch clearance to combustibles above flue pipe and elbows and 1 inch clearance on both sides and bottom of the flue pipe to combustibles on all horizontal pipe sections and elbows.

Vertical runs of this vent systems must be supported every 4 feet above the appliance flue outlet by wall brackets attached to the vent pipe and secured with nails or screws to structural framing members.

PIPE STRAP

STUD WALL

	48”	1” MIN.
		(25.4mm)
	(1219mm)

FLUE OUTLET

Figure 49

Installing Firestops (Figures 50, 51, 52, and 53)

Firestops are required for safety whenever the vent system passes through an interior wall, an exterior wall, or a ceiling.These firestops act as a firebreak heat shield and as a means to insure that minimum clearances are maintained to the vent system.

Horizontal runs in the vent system which pass through either interior or exterior walls, require the use of wall firestops on both sides of the wall through which the vent passes.

Cut an appropriate sized hole in wall. See Figure 50. Position firestop on interior side of wall for hole.

Attention: Wall firestop hole is off-set towards bottom of wall opening. Secure with nails or screws. Continue the vent run through the firestop. See Figure 50.

	Vent Size	A	B

B	6 5/8"	10"	11"

	8"	10 3/8"	12 3/8"

WALL FIRESTOP

HOLE IS OFF-SET

TOWARDS BOTTOM

OF WALL OPENING.

Figure 50

Vertical runs of this system which pass through ceilings require the use of ONE (1) ceiling firestop at the hole in each ceiling through which the vent passes.

Position a plumb bob directly over the center of the vertical vent component and mark the ceiling to establish the center point of the vent. Drill a hole or drive a nail through this center point and check the floor above for any obstructions such as wiring or plumbing runs. Reposition the appliance and vent system, if necessary, to accommodate ceiling joists and/or obstructions.

Cut an appropriate sized hole through the ceiling, using the center point previously marked. See Figure 51. Frame the hole with framing lumber the same size as the ceiling joists. See Figure 51. If the area above the ceiling is NOT an attic, position and secure the ceiling firestop on the ceiling side of the previously cut and framed hole. See Figure 52. If the area above the ceiling is an attic, position and secure the firestop on top of the previously framed hole. See Figure 53.

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

25613-0-0309

Page 33

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