CFDV Series Gas Fireplace
20306739
21
VENTING INSTALLATION
Figure 31 –
Side View of Final Unit Location
REAR WALL VENT INSTALLATIONS –
FLEX VENT PIPE
Follow Steps 1 and 2 on Page 20.
Step 3
Install the 4" (102 mm) flex vent pipe to the appliance col
-
lars described in the
General Information Assembling Vent
Pipes
section of this manual. If the installation requires a
45° angle, grasp the vent pipe close to the appliance collar
and bend to 45°. DO NOT exceed 45°.
Figure 32
Install the 7" vent pipe in the same manner as Step 2.
NOTE:
There must be a
1
⁄
2
" (13 mm) rise in a 12" (305
mm) length of flex vent.
Figure 33
Step 4
Assemble the flex vent to the collars on the termination as
you did on the appliance.
Figure 32 –
Grasp the vent pipe close to the collar and end to 45°
angle. Do not exceed 45°.
FP1472
rise in length
4/04 djt
Rise
FP1472
Figure 33 –
There must be a 1/2" rise per foot length
TOP VENT SIDE WALL APPLICATION
Since it is very important that the venting system
maintain its balance between the combustion air in
-
take and the flue gas exhaust, certain limitations as
to vent configurations apply and must be strictly ad
-
hered to.
The Vent Graph, showing the relationship between verti-
cal and horizontal side wall venting, will help to determine
the various dimensions allowable.
Minimum clearance between vent pipes and combus
-
tible materials is 3" (76 mm) on top, and 1" (25 mm) on
the bottom and sides unless otherwise noted.
When vent termination exits through foundations less
than 20" (508 mm) below siding outcrop, the vent pipe
must flush up with the siding.
It is best to locate the fireplace in such a way that mini
-
mizes the number of offsets and horizontal vent length.
The horizontal vent run refers to the total length of vent
pipe from the flue collar of the fireplace (or the top of the
Transition Elbow) to the face of the outer wall.
Horizontal plane means no vertical rise exists on this por
-
tion of the vent assembly.
When installing the appliance as a rear vent unit, the
90° or 45° Transition Elbow attached directly to the
rear of the unit is NOT INCLUDED in the following cri-
teria and calculations, and unless specifically men
-
tioned should be ignored when calculating venting
layouts.
• The maximum number of 90° elbows per side wall in-
stallation is three (3).
Figure 34
• If a 90° elbow is fitted directly on top of the fireplace
flange the maximum horizontal vent run before the ter
-
mination or a vertical rise is 36" (914 mm).
Figure 35
• If a 90° elbow is used in the horizontal vent run (lev
-
el height maintained) the horizontal vent length is re
-
duced by 36" (914 mm).
Figures 36 & 37.
This does
not apply if the 90° elbows are used to increase or
redirect a vertical rise.
Figure 34
• • ••• •••••••
••• • •• •• • •• • •• ••• • •••• • •• •••••••••••••••••••••••••••
•• •• • • • •••• • • • • • • • • • • • • • • •
Finish Wall
Vent
Termination
FP2294
Firestop
FP1473
corner flex install
4/04 djt
Termination
Flex section
Appliance collars
FP1473
Firestop
Содержание 33CFDVNI
Страница 66: ...CFDV Series Gas Fireplace 66 20306739...
Страница 67: ...CFDV Series Gas Fireplace 20306739 67...
