c)A minimum of an 8 ft. vertical rise.
d)Two sets of 45 degree elbow offsets within these vertical installations. From 0 to a maximum of 8 ft. a vent pipe can be used between elbows. (Fig. 33)
e)7DVCS must be used to support offsets. (Fig. 34) This application will require that you first determine the roof pitch and use the appropriate 7DVSKV (A,B or F). (see Venting Components, page 18)
VERTICAL THRU THE
ROOF INSTALLATION
1. | Locate your fireplace. |
2. | Plumb to centre of the (4") 90o transition elbow |
| (7DVRT90) from ceiling above and mark position. |
3. | Cut opening equal to |
| mm). |
4. | Proceed to plumb for additional openings through the |
MAX. |
8 FEET |
2438m |
45° |
40'(12.2m) |
MAX. |
8 FEET |
2438m |
45° |
Fig. 33 |
TYPICAL OFFSET INSTALLATION |
TYPICAL 7DVCS |
APPLICATION |
TYPICAL ROOF |
SUPPORT |
APPLICATION |
Fig. 34
Fig. 35
| roof. In all cases, the opening must provide a minimum |
| of 1 inch clearance to the vent pipe, i.e., the hole must |
| be at least |
5. | Place fireplace into position and secure to floor. |
6. | Place firestop(s) #7DVFS into position and secure. |
| (Fig. 37) |
7. | Install roof support (Fig. 35) and roof flashing making |
| sure upper flange of flashing is below the shingles. |
| (Fig. 38) |
8. | Install appropriate pipe sections until above the flash- |
| ing. (See Fig. 36 for #'s 7, 8 and 9). |
9. | Install storm collar and seal around the pipe. |
10. Add additional vent lengths for proper height. (Fig. 36) | |
11. Apply high temperature sealant to 4" and 7" collars of | |
| vent termination and install. |
Attic |
|
|
Insulation |
|
|
Shield | 11" |
|
|
| JOIST |
|
| Fig. 37 |
Ceiling | 11" | UPPER FLOOR |
Installation |
| |
|
| |
|
| JOIST |
| VENT TERMINATION | |
| STORM COLLAR | |
ROOF | ROOF FLASHING | |
2' Min. | ||
| ||
| ROOF SUPPORT | |
ATTIC INSULATION | ||
| CEILING JOISTS | |
| JOISTS | |
40 FEET | ATTIC INSULATION | |
(12.2m) | ||
SHIELD | ||
Fig. 36
TYPICAL
The minimum height of the vent above the highest point of penetration throught the roof is 2 feet. See Fig. 36.
- 16 -
FIRESTOP
SPACER
NAILS (4)
Fig. 37 If there is a room above ceiling level, firestop spacer must be installed on both the bottom and the top side of the ceiling joists. If an attic is above ceiling level a 7DVAIS (Attic Insulation Shield) must be installed.
Fig. 38 The enlarged ends of the vent section always face downward.
| SHEETMETAL |
| SCREWS (#5) Ñ |
| 3 PER JOINT |
| SEALANT |
Fig. 38 | STORM |
COLLAR