FLEX VENT INSTALLATION | WDV Series Gas Fireplace |
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1.Flexible UL1777 listed venting may be used in any venting application where rigid direct vent components can be used. All restrictions, clearances and allowances that pertain to the rigid piping apply to
the flexible venting. Flex kits may not be modified. Flex kits may be added to the end of a vent run made of rigid vent sections using pipe manufacturer's approved flex to pipe adapters. This may occur only if doing so does not violate any of the venting length, height, routing, horizontal to vertical ratio requirements or clearance considerations detailed in this manual.
2. The flex adapter starter kit (DVF8A/8) is used to attach flex venting to the appliance starting collar. It includes 5" inner and 8" outer adapter rings. Figure 24
• The inner and outer adapter rings are required to start | 1C\v" Flex- |
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all flex runs. | ible Pipe |
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and Adapter |
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• Never install damaged or torn flexible venting. | Screws | ||
Outer | |||
• Over tightening clamps may rip, tear, or otherwise |
| (3 places, | |
| equidistant just | ||
damage flexible venting. | DVF8A | above gear | |
• The adapter kit does not include individual pipe sec- | clamp) | ||
Inner Adapter | |||
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tions which may be purchased separately. (UL1777 | Outer Adapter |
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listed type venting only.)
3. Start the flexible vent as follows:
A. Installing the inner flex adapter and pipe. Figure 24 | Appliance | ||
Starting Collar | |||
1. | Insert the long side of the 5" inner ring into | ||
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| exhaust pipe, gently tap to seat into place, and secure with |
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| screws. |
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2. | Slide the small gear clamp over the inner flexible vent pipe, |
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| and push out of the way. |
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3. | Pull and extend the inner flexible vent. | Figure 24 - | |
4. | Slide the inner vent onto the adapter collar, for a minimum | Typical Appliance Connection | |
1C\v" overlap.
5.Locate the clamp at approximately 3/4" from the flex end and tighten.
6.Secure the clamped inner section with three
B.Installing the outer flex pipe. Figure 24
1.Firmly insert the 8" outer adapter ring into the outer appliance starting collar and secure with screws.
2.Slide the large gear clamp over the outer flexible vent pipe, and push out of the way.
3.Pull and extend the outer flexible vent.
4.Slide the outer vent onto the appliance collar outer adapter for a minimum 1C\v" overlap.
5.Locate the clamp at approximately 3/4" from the flex end and tighten.
6.Secure the clamped outer section with three
UL1777
Flex Vent
5° Radius
FP1973
Figure 25 -
Minimum Radius for Flex Vent Section
C.Routing UL1777 flex pipe.
1.Always maintain the required clearance when routing the flex vent assembly.
NOTE
Flex vent pipe spacers: Refer to manufacturer’s specifications for correct positioning of the spacer springs to maintain proper distance between inside and outside pipe.
78D0011 | 19 |
