Flex Vent Installation

UL1777

Flex Vent

FLEX VENT INSTALLATION	WDV Series Gas Fireplace

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-
all flex runs.	ible Pipe
all flex runs.	and Adapter
• Never install damaged or torn flexible venting.	and Adapter	Screws
• Never install damaged or torn flexible venting.	Outer	Screws
• Over tightening clamps may rip, tear, or otherwise		(3 places,
• Over tightening clamps may rip, tear, or otherwise		equidistant just
damage flexible venting.	DVF8A	above gear
• The adapter kit does not include individual pipe sec-	DVF8A	clamp)
	Inner Adapter	clamp)
	Inner Adapter
tions which may be purchased separately. (UL1777	Outer Adapter

listed type venting only.)

3. Start the flexible vent as follows:

A. Installing the inner flex adapter and pipe. Figure 24		Appliance
A. Installing the inner flex adapter and pipe. Figure 24		Starting Collar
1.	Insert the long side of the 5" inner ring into	Starting Collar
1.	Insert the long side of the 5" inner ring into
	exhaust pipe, gently tap to seat into place, and secure with
	screws.
2.	Slide the small gear clamp over the inner flexible vent pipe,
	and push out of the way.
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 self-tapping screws, drilled equidistant, just above the clamp perimeter.

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 self-tapping screws, drilled equidistant, just above the clamp perimeter.

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

WDV500 specifications

The Monessen Hearth WDV500 is a stylish and efficient direct vent gas fireplace designed to enhance any living space. This fireplace combines modern aesthetics with advanced technology to create a cozy atmosphere while ensuring optimal performance. With its sleek design and versatile installation options, it caters to various home styles, making it an ideal choice for homeowners looking to elevate their ambiance.

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WDV500 specifications