Majestic Appliances 360DVS3, 360DVSR Vertical Through-the-Roof Installation, Chimney support

360 DVS Series Direct Vent Fireplaces

Vertical Through-the-Roof Installation

1.Locate your fireplace.

2.Plumb to center of the (4”) flue collar from ceiling above and mark position.

3.Cut an opening equal to 9³⁄₈” x 9³⁄₈” (240 x 240mm).

4.Proceed to plumb for additional openings through the roof. In all cases, the opening must provide a minimum of 1” (25 mm) clearance to the vent pipe, i.e., the hole must be at least 9³⁄₈” x 9³⁄₈” (240 x 240mm).

5.Place fireplace into position.

6.Place firestop(s) #7DVFS or Attic Insulation Shield #7DVAIS into position and secure. (Fig. 35)

7.Install roof support (Fig. 33) and roof flashing making sure upper flange is below the shingles. (Fig. 34)

8.Install appropriate pipe sections until the venting is above the flashing. (Fig. 34)

9.Install storm collar and seal around the pipe.

10.Add additional vent lengths for proper height.

(Fig. 32)

11.Apply high temperature sealant to 4” and 7” collars of vertical vent termination and install.

If there is a room above ceiling level, a firestop spacer must be installed on both the bottom and the top sides of the ceiling joists. (Fig. 35) If an attic is above ceiling level, a 7DVAIS (Attic Insulation Shield) must be installed.

NOTE:The enlarged ends of the vent sections are to always face downward.

Attic Insulation

Shield

Joist

Ceiling In-
stallation	11"	11"
		(279 mm)
	(279 mm)

Upper Floor

Joist

Firestop

Spacer

Typical Roof Sup-	Typical Ceiling Sup-
port Application	port Application
	CFM110
Fig. 33 Chimney support.

Sheet Metal Screws (#5) (3 per joint)

Sealant

Storm Collar

TWL101a

Fig. 34 Roof flashing.

Nails (4)

Fig. 35 Firestop and attic insulation shield.

CFM100

22 10006326