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Manafacture: Empire Comfort Systems File size: 4.86 mb File name: Language of manual:

Vertical runs must be supported every 3 feet using wall straps. Slip wall straps loosely on to pipe. Attach installer provided straps to framing members using nails or screws. • The fireplace and venting system should be inspected before initial use and at least annually by a qualified field service person. Inspect the external vent cap on a regular basis to make sure that no debris is interfering with the airflow. Inspect entire venting system to ensure proper function. • Please refer to the fireplace instructions for information on Termination Cap clearances. Page 20 21759-6-0608 DVVK-4FV DIRECT VENT TERMINATION KIT (cont.) PRE-INSTALLATION INFORMATION: Items Required For Installation: Tools Building Supplies Phillips Screwdriver Hammer Saw and/or saber saw Level Measuring Tape Electric Drill and Bits Pliers Square Tin Snips Framing Materials Wall Finishing Materials Caulking Material (Noncombustible) Support Strap supplies Before You Start: Plan your installation. Read these instructions and the fireplace installation manual before installing unit and vent system. Set unit in place and survey how best to vent the unit. After the vent configuration has been decided, stretch the flex pipe components out, then trim off what will not be needed. Refer to the fireplace installation manual for information on vertical venting requirements. The maximum length of vent when using flex venting is 35 feet total. Contact your dealer or distributor for information on flex vent extension kits that may be added to the DVVK4FV kit, in order to terminate up to 35 feet. Available extension kits include the DVEK-10 (10’ Flex) or the DVEK-25 (25’ Flex) extension kits. The extension kits include connection hardware. Installation of the Vertical Flex Termination Kit WARNING Ensure that the venting system exits the structure through the roof and does not terminate less than 12 inches (305mm) above the roof. WARNING Refer to your fireplace homeowner’s manual for the minimum and maximum venting requirement of your fireplace prior to installation. Failure to do so may cause a fire hazard. WARNING This flexible pipe termination kit is ONLY for vertical terminations. WARNING Any horizontal run section must have a 1/4” rise for every one (1) foot of run towards the vent termination. Never allow the vent pipe to run downward. This could cause high temperatures and may present a fire hazard. This vertical kit may incorporate two (2) 90 degree bends, but must terminate vertically. CAUTION This flex vent kit can be installed either vertically or horizontally off of Direct Vent Series fireplaces but must only terminate vertically. WARNING Because of sharp edges, always use gloves when handling the flex vent components. CAUTION Vent connections should overlap a minimum of 1” for proper sealing. CAUTION Always stretch and secure venting with metal strapping secured with nails (nails and strapping not supplied) to ensure that the flex vent runs remain true. INSTALLATION NOTE: If space permits, it is generally easier to attach venting in the top vent configuration. 21759-6-0608 Page 21 Page 22 21759-6-0608 1. Unpack vent components and check all items for shipping damage. 2. For this venting system to operate as designed it is dependent on the use of all parts and procedures detailed in these instructions. Failure to follow these instructions may potentially affect the performance of this vent system and the attached appliance. 3. As per the fireplace manufacturer’s instructions, replace the existing 6 5/8” diameter fireplace vent adapter with the 7” diameter flex vent fireplace adapter included in the vent kit. Install the adapter collar with the screws removed from the standard fireplace collar. Refer to the fireplace manual for additional information on the vent collar removal and installation. 4. Once the fireplace location has been determined, mark the ceiling where the flex vent will pass through. Cut an opening for installation of the firestop thimble assembly. The opening must measure a minimum of 9-1/2” x 9-1/2” square. See Figure 32. 5. Next, determine the location for the cutout in the roof opening. This opening must be large enough to provide a minimum 1” air space clearance from the vertical vent pipe to any combustible framing. 6. Install the Firestop/Thimble assembly to the framed opening in the ceiling using common nails or screws. Note: The thimble assembly is adjustable up or down as needed within the firestop. It is also designed with a pivoting firestop for use with 0 - 3/12 pitch cathedral ceilings. 7. To begin vent system assembly, first layout all the vent components on the floor in the order in which they will be assembled. 8. Stretch the 4” diameter inner flex flue and 7” diameter outer flex vent to the maximum length of 6 feet. 9. Install the spring spacers provided around the 4” diameter flex flue at 1 foot intervals, then slide the flue pipe with spacers into the 7” diameter outer flex vent pipe. Make sure the sprin...

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