•IMPORTANT • Minimum clearance between vent pipes and combustible materials is 1" (25mm) on bot- tom, sides and top.
A vent starter kit plus a transition elbow must be used in Vertical Sidewall Installa- tions. The 4" pipe must be centered inside the 7" pipe coming off the transition elbow.
Canadian & USA Installations:
The venting system must conform with local codes, or in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.1/NFPA 54 - latest edition, or CSA B149.1 Installation Code.
Only CFM Corporation venting components specifically approved and labelled for this fireplace may be used.
Vertical Sidewall Installations
STEP 1
Locate vent opening on the wall. It may be necessary to first position the fireplace and measure to obtain hole location. Depending on whether the wall is combustible or noncombustible, cut opening to size. (Fig. 22)
For combustible walls first frame in opening.
Combustible Walls (Fig. 22): Cut a 9³⁄₈" x 9³⁄₈" (240 x 240 mm) hole through the exterior wall and frame.
Noncombustible Walls (Fig. 22): Hole opening must be 7¹⁄₂" (190 mm) in diameter.
Vent Opening for Combustible Wall
9³⁄₈"
(240 mm)
Framing Detail
9³⁄₈"
(240 mm)
Fireplace
Hearth
Vent Opening for Noncombustible Wall
7¹⁄₂"
(190 mm)
Fig. 22 Locate vent opening on wall.
DVHVAC36
STEP 2
Measure wall thickness and cut adjustable zero clear- ance sleeve parts to proper length (MAXIMUM 12" / 305mm). (Fig. 23) Adjust sleeve to minimum (9³⁄₈" x 9³⁄₈"
/240 x 240 mm) and attach to firestop with #8 sheet metal screws (supplied). Assemble sleeve and attach to firestop with #8 sheet metal screws (supplied). Install firestop assembly.
Zero clearance sleeve is only required for combustible walls.
Adjustable | Max. Length |
Zero Clearance | 12" (305 mm) |
Sleeve |
|
| #8 Screws |
| (2) |
| #8 |
| Screws |
#8 Screws (2) | (2) |
| |
Firestop |
|
Adjustable Zero Clearance Sleeve | ZCS101 |
| |
Fig. 23 Adjustable zero clearance sleeve. |
|
STEP 3
Apply a bead of high temperature sealant to the inner and outer flue collars of the fireplace and using ap- propriate venting component(s) attach to fireplace with three (3) screws. (Fig. 24) Follow with the installation of the inner and outer elbow. Again, secure joints with three (3) sheet metal screws. Wipe off any excess high temperature sealant.
Ensure Pipes are Concentric
�
��������
Bead of Seal- ant
(If Necessary)
CFM143
Fig. 24 Apply sealant to inner and outer pipe.
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