valutazioni - 3, GPA: 4.3
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Where the termination cap penetrates a combustible wall, 1" air space clearance is required. • Snorkel terminations are required when minimum clearance to grade cannot be met (see Figure 16 on page 11). • Have fireplace and selected vent components on hand to help determine the exact measurements when elbowing or offsetting. Always use wall firestops when penetrating walls and firestops when penetrating ceilings or attic spaces. • Install horizontal venting with a 1/4" rise for every 12" of run toward the termination. 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. NOTICE: Failure to follow these instructions will void the warranty. NOTICE: Do not seal termination cap to vent pipe. Cap must be removable for vent inspection and maintenance. INSTALLATION PRECAUTIONS • 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 (Do not cut or alter vent components) • Installation of any component part not manufactured or approved by DESA • Installation other than as instructed by these instructions WARNING: This gas fireplace 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 appliance. Each direct-vent gas appliance must use a separate vent system. Do not use common vent systems. WARNING: Vent pipe air space clearances to combustibles are 1" on all sides except on the horizontal sections, which require 2" clearances from the top of the pipe. Where the termination cap penetrates a combustible wall, 1" air space clearance is required. For more information, visit more information, visit 111923-01A 8 8 VENTING INSTALLATION INSTRUCTIONS Installation Planning VENTING INSTALLATION INSTRUCTIONS Continued INSTALLATION PLANNING There are two basic types of direct-vent installation: • Horizontal Termination • Vertical Termination Horizontal Termination Installation IMPORTANT: Horizontal square terminations require only inner portion of wall firestop. Horizontal installations using round termination require exterior portion of wall firestop (see Figure 14, page 10). 1. Set the fireplace in its desired location and determine the route your horizontal venting will take. Do not secure the fireplace until all venting has been installed. Some installations require sliding the fireplace in and out of position to make final venting connections. Figures 14 through 18 on pages 10 through 12 show different configurations for venting with horizontal termination that will help you decide which application best suits your installation. Check to see if wall studs or roof rafters are in the path of your desired venting route. If they are, you may want to adjust the location of the fireplace. 2. Direct vent pipe sections and components are designed with special twist-lock connections. Twist-Lock Procedure: The female ends of the pipes have locking lugs (indentations). These lugs will slide straight into matching slots on the male ends of adjacent pipes. Push pipe sections together and twist one section clockwise approximately one-quarter turn until the sections are fully locked (see Figure 8). Note:Horizontal runs of vent must be supported every three feet. Use wall straps for this purpose. 3. Use a 45° elbow to connect venting system to fireplace flue collar. The elbow is designed to be twist-locked onto the flue collar as described in step 2. IMPORTANT:Do not attempt to alter the configuration of the elbow by cutting, twisting, bending, etc. 4. Assemble the desired combination of pipe and elbows to the fireplace flue collar. If there are long portions of venting run, pre-assembled pipe sections may be installed as subassemblies for convenience. 5. Carefully determine the location where the vent pipe assembly will penetrate the outside wall. The center of the hole should line up with the center-line of the horizontal vent pipe. Mark the wall for a 10 3/4" x 10 3/4" square hole. Cut and frame the square hole in the exterior wall where the vent will be terminated. If the wall being penetrated is constructed of noncombustible material, such as masonry block or concrete, a 8 1/2" hole with zero clearance is acceptable (see Figure 9). Female Locking Lugs Male Slots Figure 8 - Vent Pipe Connections Vent Opening (Framing Detail) 10 3/4" (273mm) 10 3/4" Inside Framing (273mm) 10 3/4" (273mm) 8 1/2" (216mm) Combustible Wall Vent Opening Noncombustible Wall Center of Hole Figure 9 - Vent Opening Requirements For more information, visit more information, visit 111923-01A VENTING IN...
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