Regency ® P40-1 Direct Vent Gas Fireplace12INSTALLATIONINSTALLATIONVENTING INTRODUCTIONThe P40 uses the "balanced flue" technology Co Axial system. Theinner liner vents products of combustion to the outside while the outerliner draws outside combustion air into the combustion chamber therebyeliminating the need to use heated room air for combustion and losingwarm room air up the chimney.Note: These flue pipes must not be connected to any otherappliance.The gas appliance and vent system must be vented directly to the outsideof the building, and never be attached to a chimney serving a separate solidfuel or gas burning appliance. Each direct vent gas appliance must use it'sown separate vent system. Common vent systems are prohibited.* For "C" screw position the top facing support is reversed.Note: For screw position C with a facing material depth of 1-1/4"(32mm), the top facing support must be reversed.UNIT ASSEMBLY PRIOR TOINSTALLATIONNOTE: The Top Facing Support, the Side Nailing Strips and the 2 TopStandoffs must be correctly positioned and attached before unit isslipped into position.TOP STANDOFF ASSEMBLYThe top standoffs are shipped in a flat position and must be folded intoshape and attached.1) Remove the standoffs from top of the fireplace.2) Take each standoff and bend into the correct shape. Bend up at thebend lines until the screw holes in the standoff and the pre-punchedscrew holes on the fireplace top line up.3) Attach the standoff securely to the top with 2 screws per standoff(on opposite corners).TOP FACING SUPPORT AND SIDE NAILING STRIPSDetermine the total thickness of facing material to allow the finished surfaceto be flush with the front of the unit. Total facing thickness can vary from1/2" (13mm) to 1-1/4" (32mm) thick.The Top Facing Support & Side Nailing Strips can be mounted in 3 differentpositions depending on the thickness of the facing material.1) Mount Top Facing Support using the 3 supplied screws into the threepre-punched screw holes on the top front of the unit. Use hole posi-tions A, B, or C depending on your facing depth.2) Use the same screw hole position for the Side Nailing Strips as wasused for the Top Facing Support. Attach each side nailing strip using3 screws.Note: When installing side strips into position C, the side strips are notreserved.ScrewPositionFacing Material DepthA 1/2" / 13mmB 7/8" / 22mmC* 1-1/4" / 32mmVENT RESTRICTOR POSITIONVent restriction is required for certain venting installations, see the diagramsin the "Venting Arrangements" section to determine if they are requiredfor your installation.To set the Vent restriction as indicated in the diagrams in the "VentingArrangements" section, refer to the instructions below;1) Remove the top louver if installed.2) Loosen the screw on the vent restrictor indicating plate.3) Rotate the vent restrictor adjustment rod counter clockwise to lineup the slot on the indicating plate with the point on the air box to therequired setting.4) Tighten screw to lock position.Vent Restrictor setting at Set 2Point on AirBoxScrewFactory Set Vent Restrictor Setting(no adjustment required)Point on AirBoxVent Restrictor setting at Set 1Point on AirBox