Monessen Hearth 36CDVXTRN installation instructions Rear Wall Installation Twist Lock Pipe, Step

CDVX Series Direct Vent Gas Fireplace

Vent Opening for Combustible Wall

20" (508 mm)

Max.

Top View

When using all venting except 7TCRVT1320

9³⁄₈”

(240 mm)

9³⁄₈”

(240 mm)

Framing

Detail

Straight Venting FP1598

Fig. 15 Rear vent applications.

•Minimum clearances between vent pipe and com- bustible materials are as follows:

Top - 1” (25 mm) Sides - 1” (25 mm) Bottom - 1” (25 mm)

•The maximum horizontal distance between the end of the transition elbow in a corner application and the outside face of the rear wall is 20” (508 mm). (Fig. 16)

•Only one 45° elbow is allowed in these installations.

20” (508 mm)

Max.

FP1188

Fig. 16 Rear vent application, one 45° elbow.

Rear Wall Installation

Twist Lock Pipe

STEP 1

Locate vent opening on the wall. To locate hole center consult with appropriate fireplace dimensions, Page 4. Frame as shown below.

Combustible Walls (Fig. 17): Cut a 9³⁄₈”H x 9³⁄₈” W (240 x 240 mm) hole through the exterior wall and frame as shown. For 7TCRVT1320 cut a 10³⁄₈”H x 9³⁄₈” W (264 x 240 mm) hole.

Noncombustible Walls (Fig. 17): Hole opening must be 7¹⁄₂” (190 mm) in diameter.

STEP 2

Install interior firestop as shown in Figure 18.

STEP 3

Remove telescoping collar from termination.

When using		9³⁄₈”	Opening for Noncom-
				bustible Wall
7TCRVT1320	(240 mm)
venting Only			7¹⁄₂”
10³⁄₈”			(190 mm)
(264 mm)

	VO584-100
Fireplace Hearth

Fig. 17 Locate vent opening on wall.

Bend Tab

Firestop FP1600

Fig. 18 Install firestop.

STEP 4

Bend tab on outer casing up and insert collar onto fire- place collars. (Fig. 18)

STEP 5

Twist the termination collar so it locks onto fireplace col- lars. Run screw through tab to keep collar from turning. (Fig. 19)

STEP 6

Slide fireplace into position.

STEP 7

From the outside of the house, slide the termination onto the collars.

STEP 8

Secure the termination to the house with the four (4) screws provided.

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