Vermont Casting 360DVS2, 360DVSR, 360DVSL, 360DVS3 warranty Vertical Side Wall Installation

Horizontal plane means no vertical rise exists on this portion of the vent assembly.

•The maximum number of 90˚ elbows per side wall installation is three (3).

•If a 90˚ elbow is fitted directly on top of the fireplace flange, the maximum horizontal vent run before the termination or a vertical rise is 36” (914mm).

	Max. 20”	Max. 36”
	(508mm)	(914mm)
		FP1436
Fig. 21	Maximum horizontal run w/no rise.

•If a 90° elbow is used in the horizontal vent run (level height maintained), the maximum horizontal vent length is reduced by 36” (914 mm). (Fig. 21) This does not apply if the 90° elbows are used to increase or redirect a vertical rise.

Example: According to the vent graph (Fig. 16),

the maximum horizontal vent length in a system with a 7¹⁄₂” (191mm) vertical rise is 20 ft. (6.1m), but if a 90° is required in the horizontal vent, it must be reduced to 17 ft. (5.2m).

NOTE: The sum of Dim. A and Dim. B must not be greater than 17 ft. (5.2m). (Fig. 22)

	90o
	A	B
		A + B = 17’
		(5.2m) Max.
	7’6” (2.3m)
		FP1437
Fig. 22	Horizontal run reduction.
10006326

360DVS Series Direct Vent Fireplaces

•The maximum number of 45° elbows permitted per side wall installation is two (2). These elbows can be installed in either the vertical or horizontal run.

•For each 45° elbow installed in the horizontal run, the length of the horizontal run MUST be reduced by 18” (45 cm). This does not apply if 45° elbows are installed on the vertical part of the vent system.

•The maximum number of elbow degrees in a system is 270°. Example shown in Figure 23:

Elbow 1 = 90°

Elbow 2 = 45°

Elbow 3 = 45°

Elbow 4 = 90°

Total angular variation = 270°

1 + 2 + 3 + 4 = 270°

1	1
2	2
3	3
4	4

FP1438

Fig. 23 Maximum elbow usage.

Vertical Side Wall Installation

STEP 1

Locate and cut vent opening in the side wall. It may be necessary to first position the fireplace and measure to obtain the hole location. Depending on whether the wall is combustible or noncombustible, cut the opening to

size per Figure 24.

Combustible walls: Cut a rectangular hole measuring 9³⁄₈” H x 9³⁄₈” W (240 x 240mm) through the exterior wall and frame. Frame in the opening per Figure 24.

Noncombustible walls: Cut a round hole measuring 7¹⁄₂” (190 mm) diameter through the exterior wall and frame. (Fig. 24)

STEP 2

For combustible walls: Measure wall thickness and cut zero clearance sleeve parts to proper length. Max. length is 12” (305mm). Assemble the sleeve and attach it to the firestop with #8 sheet metal screws (supplied). Install the firestop assembly. (Fig. 25)

Zero clearance sleeve is required only for combustible walls.

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