Heatiator NNXT4236IL NNXT3933I Install Attic Insulation Shield, Flat Ceiling Installation

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D. Install Attic Insulation Shield

WARNING! Fire Risk. DO NOT allow loose materials or insulation to touch vent. Hearth & Home Technologies Inc. requires the use of an attic shield.

The National Fuel Gas Code ANSI Z223.1 and NFPA 54 requires an attic shield constructed of 26 gauge minimum metal that extends at least 2 in. (51 mm) above insulation.

Attic shields must meet specified clearance and be se- cured in place.

Flat Ceiling Installation

•Remove one shield from box.

NOTICE: Cut previously installed batt insulation to make room for the attic insulation shield.

•Wrap shield around pipe if pipe is already installed in area to be insulated.

•Match the three holes in each side and fasten with three screws to form a tube.

•Bend three tabs on the bottom of the shield outward to allow attachment to the ceiling firestop.

•Bend the remaining bottom tabs inward 90° to maintain the air space between the pipe and the shield. Set the shield on the ceiling firestop and attach to the firestop.

•Bend all tabs inward 90° around the top of the shield. These tabs must be used to prevent blown insulation from getting between the shield and vent pipe, and to maintain air space clearance.

Vaulted Ceiling Installation

•Remove one shield from box.

NOTICE: Cut previously installed batt insulation to make room for the attic insulation shield.

•Cut the attic insulation shield (if application is for vaulted ceiling) to fit your ceiling pitch. Snip cut edge to recreate 1 in. bend tabs all the way around the bottom.

•Wrap shield around pipe if pipe is already installed in area to be insulated.

•Match the three holes in each side and fasten with three screws to form a tube.

•Bend three tabs on the bottom of the shield outward to allow attachment to the ceiling firestop.

•Bend the remaining bottom tabs inward 90° to maintain the air space between the pipe and the shield. Set the shield on the ceiling firestop and attach to the firestop.

•Bend all tabs inward 90° around the top of the shield. These tabs must be used to prevent blown insulation from getting between the shield and vent pipe, and to maintain air space clearance.

Bend all tabs inward

Insert 3

90° to maintain

screws

clearance and

Bend 4 tabs

prevent insulation

from falling inside

inward 90°

 

to maintain

 

clearance

Figure 8.5 Attic Insulation Shield

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

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Contents Models Installation and OperationHomeowner Reference Information CongratulationsTable 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 Remote Controls, Wall Controls and Wall Switches Fixed Glass AssemblyFan Kit optional Clear SpaceControl Module Operation IPI Battery Tray/Battery InstallationBefore Lighting Fireplace Final inspection by Lighting Instructions IPIInitial Break-in Procedure Frequently Asked QuestionsAfter Fireplace is Lit Maintenance Tasks-Homeowner Maintenance and ServiceMaintenance Tasks-Qualified Service Technician Typical Appliance System Getting StartedTools and Supplies Needed Design and Installation ConsiderationsInspect Appliance and Components Select Appliance Location Framing and ClearancesConstruct the Appliance Chase In. to Level of Standoffs ClearancesMantels Mantel and Wall ProjectionsMantel Legs or Wall Projections Vent Termination Minimum Clearances Termination LocationsMinimum Clearances for Termination Approved Pipe Vent Information and DiagramsVent Table Key Use of ElbowsTop Vent Horizontal Termination Vent DiagramsOne Elbow Two Elbows Two 45 Elbows replacing One 90 ElbowThree Elbows Top Vent Vertical TerminationNo 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 One 45 Elbow Rear Vent Horizontal TerminationInstalled Horizontally Rear Vent Vertical Termination Min Ft 1.83 m max 12 ft 3.66 m min Pipe Clearances to Combustibles Vent Clearances and FramingWall Penetration Framing Combustible Wall PenetrationCeiling firestop Must be used between floors and attics Install the Ceiling FirestopFlat Ceiling Installation Install Attic Insulation ShieldVaulted Ceiling Installation Top Vent Appliance PreparationIt Cannot be changed at a later time Basket Rear Vent11 Proper Positioning and Securing of an Appliance Secure and Level the ApplianceAttach Pipe to the Firebox Assembly Install Vent PipeAssemble Vent Sections DVP Only Assemble Pipe SectionsAssemble Slip Sections Assemble Vent Sections SLP OnlyDisassemble Vent Sections Secure the Vent SectionsInstall Decorative Ceiling Components SLP only Assemble and Install Storm Collar Install Metal Roof FlashingInstall Decorative Wall Components SLP only Install Vertical Termination CapHeat Shield Requirements for Horizontal Termination Failure to maintain overlap may cause overheating and fire Install Horizontal Termination CapHHT Shrouds ShroudsField Constructed Shrouds Open Top Shroud may be used with DVP-TV, DVP-TVHW, SLP-TVHWMailbox Style Shroud Dimensions Min. Base Dims Fuel Conversion Gas InformationGas Pressure Gas ConnectionIntellifire Plus Ignition System Wiring Wiring RequirementsOptional Accessories Requirements Electrical InformationRC200 Wiring Diagram Electrical Service and RepairWall Switch Installation for Fan Optional Junction Box InstallationRC200 Remote Control Installation & OperationsInstallation of Remote Control Housing Programming the RC200 to the Control Module Power Outage Finishing Do not Remove Facing MaterialAppliance Setup Accessories Clean the Appliance Assemble LogsPlace the Rockwool Place the Lava RockAir Shutter Setting Replacing Fixed Glass AssemblyInstall Control Heat Shield Install HoodInstall the Control Heat Shield Remove Screen ProtectorInstall the floor cover as shown in Figure Install Floor CoverHang Screen on Shoulder Screws Close the Screen AssemblyIntellifire Plus Intermittent Ignition System TroubleshootingIntellifire Plus Intermittent Pilot Ignition System Reference Materials Appliance Dimension DiagramDVP45 Vent Components DiagramsDVP-TRAPFL 229 mm DVP-TRAP DVP-HRC-SS SLP Series Vent Components  B. Vent Components DiagramsSL-2DVP SLK-SNKD DVP-FBHT Service Parts Log Set AssemblyPart number list on following At Depot StockedNNXT4236I, NNXT4236IL #15 Valve Assembly #16 Ignition Control AssemblyOptional Components Do not Discard this Manual Contact Information
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