Majestic Appliances 360DVS3 - Manual (Page 21)

21
360DVS Series Direct Vent Fireplaces
10006326
Vertical Through-the-Roof Application
This Gas Fireplace has been approved for:
• Vertical installations up to 40’ (12 m) in height. Up
to a 10’ (3 m) horizontal vent run can be installed
within the vent system using a maximum of two 90°
elbows. (Fig. 30)
max height & length
360DVS
rev. 9-17-02 rjs
Max. Height 40’
(12.2m)
Min. Height 8’
(2.4m) Max. 10’ (3m)
Support Straps
Every 36”
(914mm)
Max. 10’ (3m)
Max. Height
40’ (12.2m)
Min. Height
8’ (2.4m)
FP1443
Fig. 30 Support straps for horizontal runs.
• Up to two 45° elbows may be used within the hori-
zontal run. For each 45° elbow used on the hori-
zontal level the maximum horizontal length must be
reduced by 18” (457 mm).
Example: Maximum horizontal length:
Zero elbows = 10’ (3 m)
1 x 45° elbows = 8¹⁄₂’ (2.6 m)
2 x 45° elbows = 7’ (2.1 m)
• A minimum of an 8 ft. (2.43 m) vertical rise.
• Two (2) sets of 45° elbow offsets may be used within
the vertical sections. From zero to max 8 ft. (2.43 m)
vent pipe can be used between elbows. (Fig. 30)
• 7DVCS supports offsets. (Fig. 33) This application
will require you first determine the roof pitch and use
the appropriate starter kit. See Venting Components
List, Page 22.
• The maximum angular variation allowed in the sys-
tem is 270˚. (Fig. 31)
• The minimum height of the vent above the highest
point of penetration through the roof is 2’ (610mm).
(Fig. 32)
1
2
3
4
1
2
3
4
1 + 2 + 3 + 4 = 270°
FP1444
Fig. 31 Maximum elbow usage.
Min.
2' (610 mm)
FP1185
Fig. 32 Maximum termination to roof clearance.