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The DvvK-4F FLEX vENT KIT includes the following components:
• (1) Horizontal Termination Cap
• (1) 4-foot section of Flex vent with spacers (4" flue/7" outer
pipe)
• (1) 4" diameter Flue adapter collar
Flex venting can be installed vertically off of the DLCX36SP Series fireplaces. When installing a horizontal vent run from top connections,
maintain at least ½" rise for every 12" of vent run.
CAUTIon: Always stretch and secure venting with wire or metal strapping to ensure that the horizontal runs do not sag.
If space permits, it is generally easier to attach venting in the top vent configuration.
Because of sharp edges, always use gloves when handling the flex vent components.
vent connections should overlap a minimum of 1" for proper sealing.
Always follow the general venting requirements for vent terminal location, vent lengths, and clearance to combustible materials.
INSTALLATION
1.
Unpack vent components and check that all items are
included.
2.
Check to see that the vent spacer springs are located around
the flue vent at 8" and 12" intervals along its length. See
Figure A. If not, stretch the spacer springs to about 15" long
and wrap them around the flue, then interlock the ends of
each spring about 2". See Figure B. Maintain equal distance
between spring spacers.
FLEX OUTER VENT
" "
8
(203 mm)
"
4 FLEX
SPACER
VENT PIPE
SPRING
3.
Remove the 6-⅝" diameter inlet Vent collar from the fireplace.
Replace this collar with the 7" diameter Flex Vent adapter
collar provided with the vent kit.
4.
Slide the Flex Vent flue pipe into the Outer Flex Vent pipe.
5.
Install the Wall Firestop/Thimble assembly as required through
the wall. Refer to the venting charts in the fireplace manual
to determine the proper height and size of the vent opening.
The minimum opening should be 9" wide by 11" high. The
minimum combustible clearance from the horizontal vent is
1" from sides and bottom, and 3" above the vent pipe. See
Figure D.
6.
In most cases, after determining the length of the vent that
is needed, it may be easier to install the flue and outer vent
pipes to the Termination Cap first, then from the outside, feed
the venting through the wall to the fireplace.
29004-0-0711
DvvK-4F FLEX vENT INSTRUCTIONS
FIGURE A
SPACER
SPRINGS
FLEX FLUE PIPE
"
"
8
8
(203 mm)
(203 mm)
FIGURE B
• (1) 7" diameter Outer Vent adapter collar
• (1) Wall Firestop/Thimble Assembly
• Hardware pack that includes band clamps and screws
7.
If the venting is to long, trim off any excess vent before
attaching the vent end connectors.
8.
Attach the Termination Cap to the outside of the house.
9.
Prior to making the vent connections, apply high temperature
sealant (1000 degree F min.) to the vent connections before
securing with the band clamps provided. Note: the flue pipe
end without the adapter is to be installed to the Termination
Cap.
10. Apply sealant to the outside of the flue pipe adapter and
connect to the flex flue pipe. Then insert the adapter into the
fireplace flue. Secure flue adapter to the fireplace flue with a
minimum of two screws provided. See Figure C.
11. Attach the Outer Vent pipe to the 7" diameter Collar on the
fireplace with a large band clamp provided. Sealant may also be
used on the outer vent connections.
12. Check all vent connections for tightness. Make sure horizontal
venting has the proper rise and combustible clearances
required. Refer to venting charts in fireplace instruction
manual.
"
7 DIA. FLEX
VENT PIPE
"
4 DIA. FLEX
FLUE PIPE
"
4 DIA. FLUE
ADAPTOR
COLLAR
"
7 DIA. INLET
ADAPTOR COLLAR
(WITH GASKET)
Top of Vent
3"
(76 mm)
(25 mm)
1"
FIGURE C
BAND CLAMP
APPLY HIGH
TEMPERATURE
SEALANT
FIGURE D
Combustibles NOT
allowed in shaded
area
4" Diameter flue
7" Diameter Flex
intake vent
1"
(25 mm)
Page 35
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