Desa Tech CDVBPC, CDVBNC Venting Installation, Installation Precautions, Installation Planning

Models: CDVBPC CDVBNC

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VENTING INSTALLATION

VENTING INSTALLATION

Installation Precautions Installation Planning

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VENTING INSTALLATION

INSTALLATION PRECAUTIONS WARNING: Read all instructions completely and thoroughly before attempting installation. Failure to do so could result in serious injury, property damage or loss of life. Operation of improperly installed and maintained venting system could result in serious injury, property damage or loss of life.

INSTALLATION PLANNING WARNING: Seal all vent connections. Seal only the outer pipe connections with high temperature silicone (600°F/316° C). Before joining elbows and pipes, apply a bead of high temperature silicone sealant (GE RTV 106/Loctite RTV 81585) to the male end of the elbow or pipe. High temperature silicone must also be used to re-seal any connections after maintenance to venting system.

NOTICE: Failure to follow these instructions will void the warranty.

INSTALLATION PRECAUTIONS

Consult local building codes before beginning the installation. The installer must make sure to select the proper vent system for installation. Before installing vent kit, the installer must read this stove and burner system manual and vent kit instructions.

Only a qualified service person should install venting system. The installer must follow these safety rules:

Wear gloves and safety glasses for protection

Use extreme caution when using ladders or when on roof tops

Be aware of electrical wiring locations in walls and ceilings

The following actions will void the warranty on your venting system:

Installation of any damaged venting component

Unauthorized modification of the venting system

Installation of any component part not manufactured or approved by DESA International

Installation other than as instructed by these instructions

Manual background WARNING: This stove with burner system and vent assembly must be vented directly to the outside. The venting system must NEVER be attached to a chimney serving a separate solid fuel burning appli- ance. Each gas appliance must use a separate vent system. Do not use common vent systems.

Manual background WARNING: Horizontal sections of this vent sys- tem require a minimum clearance of 2" from the top of the pipe and 1" minimum to the sides and bottom. Vertical sections of this system require a minimum of 1" clearance to combustible materials on all sides of the pipe.

INSTALLATION PLANNING

There are two basic types of direct-vent installation:

Horizontal Termination

Vertical Termination

It is important to select the proper length of vent pipe for the type of termination you choose. It is also important to note the wall thickness.

For Horizontal Termination: Select the amount of vertical rise desired. The horizontal run of venting must have 1/4" rise for every 12" of run towards the termination.

You may use one or two 90° elbows in this vent configuration. See Horizontal Termination Configurations on page 14.

Manual background WARNING: Never run the vent pipe downward as this may cause excessive temperatures which could cause a fire.

For Vertical Termination: Measure the distance from the burner system flue outlet to the ceiling. Add the ceiling thickness, the vertical rise in an attic or second story, and allow for sufficient vent height above the roofline. You may use one or two 90° elbows in this vent configuration. See Vertical Termination Configurations on pages 16 and 17.

Note: You may use two 45° elbows in place of a 90° elbow. You must follow rise to run ratios when using 45° elbows.

For two-story applications, firestops are required at each floor level. If an offset is needed in the attic, additional pipe and elbows will be required (see Figure 29, page 15).

You may use a chase with a vent termination with exposed pipe on the exterior of the house. See Installing Vent System in a Chase, page 12.

Your Comfort Glow stove with direct-vent burner system has been tested for a maximum 17" wall thickness when using a 60º elbow directly off the back of the stove. The maximum horizontal run is 20' with 8' vertical rise (see Installation for Horizontal Termination, pages 12 through 14). The maximum vertical run is 30' (see Installation for Vertical Termination, pages 15 through 17).

It is very important that the venting system maintain its balance between the combustion air intake and the flue gas exhaust. Certain limitations apply to vent configurations and must be strictly followed.

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Desa Tech CDVBPC, CDVBNC manual Venting Installation, Installation Precautions, Installation Planning