Sears N8MPN075F16B1 manuals
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Sears N8MPN075F16B1 Instruction Manual
56 pages 3.84 Mb
80+SingleStageCategoryIFurnacePrintedinU.S.A. 11/10/2005 441 01 2613 (02) N8MPN&N8MPL *8MPN&*8MPLSAFETY REQUIREMENTS Table of Contents START-UP CHECK SHEET 2 YES_I NO_I YES_I NO_IYEs_I NO[31NO[_I NOE_I NoE_I 3 1. Safe Installation RequirementsSafety RulesFrozen Water Pipe Hazard Ifyourfurnace remains off for an extended time, the pipes in your 4 2. InstallationLocation and Clearances Installation RequirementsDimensions and Clearances (N8MPN/L) DIMENSIONAL INFORMATION 1_ 13t/4/ 5 11124,10 213,4 Dimensions and Clearances (*8MPN/L Models) 6 /41IJ DIMENSIONAL INFORMATION T Installation Positions Furnace Installation 7 HorizontalTypical Horizontal Installation Main Line Entry Pressure Switch Relocation 8 3. Side VentingRotating the Venter AssemblyTypical Downflow Installation Furnace with Screws 9 4. Combustion & Ventilation AirOutdoor Combustion Air Method Air Openings and Connecting DuctsRequirements Contaminated Combustion Airventilation offlue gases using horizontal or vertical ducts or openings. Outside Air (This is ONLY a guide. SubJect to codes of country having jurisdiction.) ThisinstallationNOTapprovedinCanada 10 I/ SoffitVen,4. Combination of Indoor and Outdoor Air shall have: FreeArea Indoor Combustion AirStandard and Known-Air-Infiltration Rate Methods MINIMUMSPACEVOLUMEFOR100%COMBUSTION ANDVENTILATIONAIRFROMINDOORS(ft 3) 11 75 IIf: [ other=combined input of all other than fan-assisted appliances in Btu/hr ACH =air changes per hour (ACH shall not exceed 0.60.) Ventilation Air 5. Gas Vent InstallationCategory ISafe Venting Requirements Venting and Combustion Air CheckCARBON MONOXIDE POISONING HAZARD Vent Check ! 12 /2NVenting to Existing Masonry ChimneyNOTE: Two (2) 45 elbows are equivalent to one (1)90 elbow. Combined Venting into a Masonry Chimney 13 6. Horizontal VentingCategory I Furnaces With External Power Venters Vent TerminationVenting Through a Non-Combustible and Combustible Wall 14 iiiiiiiiiiiiiiiiiiiiiiiiiiiii i i! ii ii ! i ! !i ! ii i i i i i i i i i i i Other than Direct Vent Termination Clearance IVIVENTTERMINAL AIRSUPPLVINLET 15 7. Masonry Chimney VentingChimney Inspection Connector Type VentingRestrictions for Chimney Types5. The authority having jurisdiction approves. CHIMNEY INSPECTION CHART .._Removemortar 1_ andtiledebris? /,%-\ opp,cotion/ 16 Oondonsoto ",,<u,ob,,y sll ed,,stedfle,ib,o eta,j Tu_ I NotSuitable andlinerorventmanufacturer's \/I-,,<u,,ab,,yExterior Masonry Chimney, FAN+NAT Installations with Type-B Double-Wall Vent Connectors (FT) NFPA & AGA Table A- Combined Appliance Maximum Input Rating in Thousands of Btu per Hr Table B- Minimum Allowable Input Rating of Space-Heating Appliance in Thousands of Btu per Hr is 8 _ is 17 APPLIANCE APPLICATION REQUIREMENTSVent dampers onany appliance connected 18 8. Gas Supply and PipingGasPiping Requirements GasSupply Requirements IGasPressures19 RightSide Gas SupplyPiping (N8MP)Left Side Gas Supply Piping (N8MP) Piping with Street Elbows Gas Valve with Elbows (N8MP) Piping with Close Nipples and Standard Elbows Gas Valve with Elbows (N8MP) FIRE HAZARD Left Side Gas Entry C8MP) (See Figure 16) Right Side Gas Entry C8MP) (See Figure 16) AdditionalLP Piping Requirements 20 Final Check 21 9. Electrical WiringPower Supply Wiring J- Box RelocationN8MPN/LModels *8MPN/L Models Thermostat Optional EquipmentHumidifier/Electronic Air Cleaner REDUCED FURNACE LIFEHAZARD Furnace Control Furnace Control Fuse 24v c4. 22 .0M10. Ductwork and Filter (Upflow/Horizontal)Duct Connections Cutting Side Return Air Opening Duct Design Size ductwork to handle airflow for heating (and air condition- ing if so equipped). 23 Duct Installation RequirementsInspectionPanel on some models FiltersA filter MUST be used. High-Velocity Air Filter Sizes (max.600FPM) Optional Duct Standoff 20 x 25 Optional Filter Rack Optional Filter Rack Installation: Side Return Internal Filter in Bottom- Return Installation 24 Addition Of Air Conditioning 25 11. Ductwork and Filter (Downflow)Exploded View of Sub-Base for Furnace ONLY 26 i!i iiSub-base for Combustible Floors -Downflow Coil Adapter BoxCondensate Line Raised by Base Non-Combustible Floor Duct ConnectionsExploded View of Base for Downflow Cased Coil 12. Checks and Adjustments 27 o 35 II I I I40 I IIMAxO MsTHIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE 44_01261302 1 1 1 Circulation Air Blower Data Continued 41 IIIMAxO Ms44101261302 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE [_1 N8MPN/L125J22(2)(6) _ISMPN150J20(2)(7)*DenotesBrand 42 + +CONNECTION DIAGRAM DISCONNECTBEFORESERVICING LADDER DIAGRAM zoo _. 2 ..... ' +"-IT III, _ --R R-- -@ HOT END.,ERLOC.' O=O.--o -- -_ ,EUTRAL I L SWITCH f_._ . / I--g%RESSURESW,TCHY_GNTER" I+" I ,,OUCER N 211o. 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