Monessen Hearth 36CDVXTRN ユーザーズマニュアル

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18
CDVX Series Direct Vent Gas Fireplace
20012253
1
2
3
4
1 + 2 + 3 + 4 = 270
o
CFM132
Insert Rear Vent Sidewall
2/26/01  sta
CFM132
Fig. 29  Maximum number of elbows.
Example:  
  Elbow 1  =   90‡
  Elbow 2  =   45‡
  Elbow 3  =   45‡
  Elbow 4  =   90‡
  Total angular variation = 270‡
  •IMPORTANT• Minimum clearance between vent 
pipes and combustible materials is one (1”) inch (25 mm) 
on bottom, sides and top.
Twist Lock Vent Starter Kit 7TCRVT, plus 
Elbow 7TCDV90 must be used in Vertical 
Sidewall installations. 
Canadian & USA Installations:
The venting system must conform with local codes, or 
in the absence of local codes, with National Fuel Gas 
Code, ANSI Z223.1/NFPA 54 - latest edition, or CSA 
B149.1 Installation Code.
Only MHSC venting components specifically approved 
and labelled for this fireplace may be used
Vertical  Sidewall Installation
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. (Page 14, Fig. 
17)
For combustible walls first frame in opening.
Combustible Walls (Fig. 17): Cut a 9³⁄₈”H x 9³⁄₈” W 
(240 x 240 mm) hole through the exterior wall and 
frame. For 7TCRVT1320 cut a 10³⁄₈”H x 9³⁄₈” W (264 x 
240 mm) hole.
Noncombustible Walls (Fig. 17): Hole opening must 
be 7.5” (190 mm) in diameter. 
STEP 2
Slide venting component on collar of fireplace. Secure 
component to fireplace by running a screw (self-tap-
ping) through tab & into outer casing. (Fig. 30)
8
CFM143
2/2/01    sta
Ensure Pipes are 
Concentric
CFM143a
Fig. 30  Always start vertical run with 7TCDV90 on 36CDVR 
unts.
7TCDV90
STEP 3
Measure the horizontal length requirement including a 
2” (51 mm) overlap, i.e. from the elbow to the outside 
wall finish plus 2”, or the distance required if installing a 
second 90° elbow. (Fig. 31)
CFM136
Rear Vent horizontal length
2/26/01  sta
X
Always install hori-
zontal venting on a 
level plane.
CFM136
Fig. 31  Measure horizontal length including 2” overlap.
STEP 4
Use appropriate length of pipe section - telescopic or 
fixed - and install the horizontal vent sections. A starter 
section of pipe which goes through the wall is packaged 
with the 7TCRVT kit, and can be cut to suit if necessary. 
(Fig. 32)
Sealing between the vent pipe and firestop 
with high temperature sealant will restrict 
cold air being drawn in around fireplace.
STEP 5
Guide the vent termination’s 4” and 7” collars into their 
respective vent pipes. Double check that the vent pipes 
overlap the collars by 2” (51 mm). Secure the termination 
to the wall with screws provided and caulk around the 
wall plate to weatherproof. (Fig. 33)