MHSC 36CDVXTRN Installation Instructions And Homeowner's Manual page 14

CDVX Series Direct Vent Gas Fireplace
20"
(508 mm)
Max.
Straight Venting
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.
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.
14
Top View
20" (508 mm)
Max.
When using all
venting except
7TCRVT1320
9³⁄₈"
(240 mm)
FP1598
When using
7TCRVT1320
venting Only
10³⁄₈"
(264 mm)
Fig. 17 Locate vent opening on wall.
Bend Tab
FP1188
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.
Vent Opening for Combustible Wall
9³⁄₈"
(240 mm)
Opening for Noncom-
9³⁄₈"
(240 mm)
7¹⁄₂"
(190 mm)
Fireplace Hearth
VO584-100
Vent Opening
2/99 djt
Firestop
Framing
Detail
bustible Wall
VO584-100
FP1600
20012253