Monessen Hearth CDV7 manual Vertical Sidewall Installation Twist Lock Pipe

CDVSC7 & CDV7 Series Gas Fireplace Venting installation

Vertical Sidewall Installation - Twist Lock Pipe

Step 1

Locate vent opening on the wall. It may be necessary to first position the fireplace and measure to obtain hole lo- cation. Depending on whether the wall is combustible or noncombustible, cut opening to size. Figure 26 (For com- bustible walls first frame in opening.)

NOTE: When using flex vent, the opening will have to be measured according to the 1/2” (13 mm) rise in 12” (305 mm) vent run.

Combustible Walls: Cut a 9B\,”H x 9%\,”W (244 x 244 mm) hole through the exterior wall and frame as shown. Figure 26

Noncombustible Walls: Hole opening must be 7Z\x” (191 mm) in diameter.

Vent Opening for Combustible Walls

9B\,”

(244 mm)

9B\,”

(244 mm)

	Framing Detail
Fireplace Hearth

X X

FP1181

Figure 27 -

Vertical Height Requirements

Step 4

Using appropriate length of pipe section(s) attach to fire- place with three (3) screws. Follow with the installation of the inner and outer elbow, again secure joints with three

(3)sheet metal screws.

Step 5

Measure the horizontal length requirement including a 2” (51 mm) overlap, i.e. from the elbow to the outside wall face plus 2” (51 mm) (or the distance required if installing a second 90° elbow). Figure 28

Always install horizontal venting on a level plane.

Opening for Noncombustible Wall

7Z\x”

(190 mm)

FP2293

Figure 26 - Fireplace Hearth

Locate Vent Opening on Wall

Step 2

Secure firestop to the inside frame, center in the 9B\," x 9B\," vent opening.

Step 3

Place fireplace into position. Measure the vertical height

(X)required from the base of the flue collars to the center of the wall opening. Figure 27

X

X

FP1182

Figure 28 -

Horizontal Length Requirement

22 69D3011