32 | Regency ® P36D-10 Zero Clearance Direct Vent Gas Fireplace|32installationDiagram 46) The arrow on the vent cap shouldbe pointing up. Insure that the 1-1/2"clearances to combustible materialsare maintained (Diagram 4). Install thetermination cap.NOTE: For Snorkel terminations in ABOVEgrade installations, follow nationalor local code requirements.Below Grade InstallationIf the Snorkel Termination must be installedbelow grade, i.e. basement application, properdrainage must be provided to prevent waterfrom entering the Snorkel Termination. Referto Diagram 4. Do not attempt to enclose theSnorkel within the wall, or any other type ofenclosure.*Diagrams 3 & 4: As specified in CGA B149Installation Code. Local codes or regulationsmay require different clearances.Diagram 1b) Horizontal runs of vent must be supportedevery three feet. Wall straps are availablefor this purpose.5) Mark the wall for a 10" x 10" square hole.The center of the square hole should lineup with the centerline of the horizontal pipe.Cut and frame the 10 inch square hole inthe exterior wall where the vent will beterminated. If the wall being penetrated isconstructed of non-combustible material, i.e.masonry block or concrete, a 7"(178mm)dia. (7-1/2"(191mm) dia. for flex) hole isacceptable.Diagram 2Notes:a) The horizontal run of vent must belevel, or have a 1/4 inch rise for every1 foot of run towards the termination.Never allow the vent to run downward.This could cause high temperaturesand may present the possibility of a fire.b) The location of the horizontal venttermination on an exterior wall must meetall local and national building codes, andmust not be blocked or obstructed. ForExternal Vent Terminal Locations, seeExterior Vent Termination Location.c) Snorkel Terminations:For installations requiring a verticalrise on the exteriorof the building, 14-inch and 36-inch tallSnorkel Terminationsare available,as well as thestandard Ris-er Vent.Follow thesame in-stallationp r o c e -dures asused forstandardHorizon-tal Ter-mination.N E V E R install the snor-kel upside down. Diagram 3Diagram 3aNote: Riser Ventis only for usein above gradeterminations.NOTE: For best results and optimum perfor-mance with each approved venting system,it is highly recommended to apply “Mill-Pac” sealant (supplied) to every inner pipeconnection. Failure to do so may result indrafting or performance issues not coveredunder warranty.Note: WithD u r a - Ve n t ,the minimumh e i g h t i sachieved byinstalling a 90oelbow directlyto the rigidpipe adaptor.UNIT INSTALLATION WITHHORIZONTAL TERMINATIONInstall the vent system according to themanufacturer's instructions included withthe components.1) Set the unit in its desired location. Checkto determine if wall studs or roof raftersare in the way when the venting system isattached. If this is the case, you may wantto adjust the location of the unit. Rough inthe gas preferably on the right side of theunit and the electrical (junction block is onthe left side) on the left.2) Direct Vent pipe and fittings are designed withspecial twist-lock connections to connect theventing system to the appliance flue outlet. Atwist-lock appliance adaptor is an availableoption that must be used in conjunction withthe Simpson Dura-Vent Direct Vent system.3) Put a bead of silicone inside the outer sectionof the adapter and a bead of Mill Pac onthe inner collar. Slip the adapter over theexisting inner and outer flue collar and fastento the outer collar only with the 3 suppliedscrews (drilling pilot holes will make thiseasier). Level the fireplace and fasten it tothe framing using nails or screws throughthe nailing strips.4) Assemble the desired combination of pipeand elbows to the appliance adaptor andtwist-lock for a solid connection.Notes:a) Twist-lock procedure: Four indentations,located on the female ends of pipes andfittings, are designed to slide straightonto the male ends of adjacent pipesand fittings, by orienting the four pipeindentations so they match and slidein to the four entry slots on the maleends, Diagram 1. Push the pipe sectionscompletely together, then twist-lockone section clockwise approximatelyone-quarter turn, until the two sectionsare fully locked. The female locking lugswill not be visible from the outside, onthe Black Pipe or fittings. They may belocated by examining the inside of thefemale ends.