Heatiator NNXT4236IL NNXT3933I, NNXT3933IL owner manual Lower & twist pull out

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•Remove the side refractory:

-Gently raise the front of the top refractory.

-Lift the side piece up slightly and then out.

Lift top refractory and hold in place

Pull side refractory forward & out

Figure 7.7b Remove Side Refractory

•Remove top refractory:

-Lower towards side removed in previous step.

-Gently twist out.

Lower & twist; pull out

Figure 7.7c Remove Top Refractory

•Remove two screws from ﬁrebox top.

•Using these screws and the same holes, install the top vent ﬂue bafﬂe.

-The ﬂue bafﬂe will be turned to install below the level of the ﬁrebox top for 12-30 ft vertical runs of vent. See Figure 7.7d.

-The ﬂue bafﬂe will be turned to install inside the ﬂue for vertical vent runs of 31-60 ft. See Figure 7.7e.

Place flue visor, reinsert screws

Figure 7.7d 12-30 ft Vertical Run

Place flue visor, reinsert screws

Figure 7.7e 31-60 ft Vertical Run

•Reinstall Refractory:

-Replace top refractory.

-Lift top refractory and slide side refractory back into position.

-Replace bottom retainer.

28	Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12

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Contents Installation and Operation ModelsCongratulations Homeowner Reference InformationTable of Contents Finishing Limited Lifetime Warranty Limited Lifetime WarrantyWarranty Conditions Listing and Code Approvals Requirements for the Commonwealth of Massachusetts Operating Instructions Gas Fireplace SafetyYour Fireplace Fixed Glass Assembly Remote Controls, Wall Controls and Wall SwitchesFan Kit optional Clear SpaceControl Module Operation IPI Battery Tray/Battery InstallationBefore Lighting Fireplace Lighting Instructions IPI Final inspection byInitial Break-in Procedure Frequently Asked QuestionsAfter Fireplace is Lit Maintenance and Service Maintenance Tasks-HomeownerMaintenance Tasks-Qualiﬁed Service Technician Getting Started Typical Appliance SystemTools and Supplies Needed Design and Installation ConsiderationsInspect Appliance and Components Framing and Clearances Select Appliance LocationConstruct the Appliance Chase Clearances In. to Level of StandoffsMantels Mantel and Wall ProjectionsMantel Legs or Wall Projections Termination Locations Vent Termination Minimum ClearancesMinimum Clearances for Termination Vent Information and Diagrams Approved PipeVent Table Key Use of ElbowsTop Vent Horizontal Termination Vent DiagramsOne Elbow Two 45 Elbows replacing One 90 Elbow Two ElbowsTop Vent Vertical Termination Three ElbowsNo Elbow TionsLower & twist pull out 12 ft 3.66 m min 60 ft 18.29 m max 12 ft 3.66 m min ft 18.29 m max Rear Vent Horizontal Termination One 45 ElbowInstalled Horizontally Rear Vent Vertical Termination Min Ft 1.83 m max 12 ft 3.66 m min Vent Clearances and Framing Pipe Clearances to CombustiblesWall Penetration Framing Combustible Wall PenetrationInstall the Ceiling Firestop Ceiling ﬁrestop Must be used between ﬂoors and atticsFlat Ceiling Installation Install Attic Insulation ShieldVaulted Ceiling Installation Appliance Preparation Top VentRear Vent It Cannot be changed at a later time BasketSecure and Level the Appliance 11 Proper Positioning and Securing of an ApplianceInstall Vent Pipe Attach Pipe to the Firebox AssemblyAssemble Vent Sections DVP Only Assemble Pipe SectionsAssemble Vent Sections SLP Only Assemble Slip SectionsSecure the Vent Sections Disassemble Vent SectionsInstall Decorative Ceiling Components SLP only Install Metal Roof Flashing Assemble and Install Storm CollarInstall Decorative Wall Components SLP only Install Vertical Termination CapHeat Shield Requirements for Horizontal Termination Install Horizontal Termination Cap Failure to maintain overlap may cause overheating and ﬁreShrouds HHT ShroudsField Constructed Shrouds Open Top Shroud may be used with DVP-TV, DVP-TVHW, SLP-TVHWMailbox Style Shroud Dimensions Min. Base Dims Gas Information Fuel ConversionGas Pressure Gas ConnectionWiring Requirements Intelliﬁre Plus Ignition System WiringOptional Accessories Requirements Electrical InformationElectrical Service and Repair RC200 Wiring DiagramJunction Box Installation Wall Switch Installation for Fan OptionalRemote Control Installation & Operations RC200Installation of Remote Control Housing Programming the RC200 to the Control Module Power Outage Finishing Facing Material Do not RemoveAppliance Setup Clean the Appliance Assemble Logs AccessoriesPlace the Rockwool Place the Lava RockReplacing Fixed Glass Assembly Air Shutter SettingInstall Hood Install Control Heat ShieldInstall the Control Heat Shield Remove Screen ProtectorInstall Floor Cover Install the ﬂoor cover as shown in FigureClose the Screen Assembly Hang Screen on Shoulder ScrewsTroubleshooting Intelliﬁre Plus Intermittent Ignition SystemIntelliﬁre Plus Intermittent Pilot Ignition System Appliance Dimension Diagram Reference MaterialsVent Components Diagrams DVP45DVP-TRAPFL 229 mm DVP-TRAP DVP-HRC-SS  B. Vent Components Diagrams SLP Series Vent ComponentsSL-2DVP SLK-SNKD DVP-FBHT Service Parts Log Set AssemblyPart number list on following Stocked At DepotNNXT4236I, NNXT4236IL #16 Ignition Control Assembly #15 Valve AssemblyOptional Components Contact Information Do not Discard this Manual