Sears N9MP1080F16B1, N9MP2050B12B1 manual UpflowInstallationsVentthru LeftSide, Switch, Side View

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UpflowInstallationsVentthru LeftSide

Yellow or black Plastic Cap

 

 

 

 

 

 

2" PVCCoupling

ONLY

 

 

Coupling

 

 

 

 

 

oj

 

Vent Drain

 

Either: The PVC

 

 

& Clamps

 

Drain Tee or a field

 

 

 

 

supplied 2" PVC Te_

 

 

Dual Pressure

Switch

Detail

Single Pressure

Switch

 

 

 

Tee Trap White PVC (loose parts bag)

Black (Move from

Sl8" ID Hose

bottom of drain tee

& Clamps

if installed)

 

DrainConnector Black PVC 314"PVCX 112"CPVC (Looseparts bag)

Casing Grommet

Black Rubber

s/8" ID

(Loose parts bag)

Drain LineVent Tee 3/4"PVC or 1/2"CPVC (Fieldsupplied)

ID RubberTube

SIDE VIEW

,,,_ Rotate downward

NOTET Bw]t-in channel will be angled 5° to 10° also.

25-24-43

Upflow Installations Vent thru Left Side (See Figure 10)

Remove Drain Tee from inducer discharge and remove black Drain Tube (1/2" ID) from bottom of Drain Tee. (*9MPD models only)

Install Vent Pipe grommet in side of casing.

Cut an appropriate length of 2" PVC pipe long enough to exit the cabinet and connect the vent drain to either:

A standard field supplied 2" PVC tee (N9MP1 and 2 models), or

A 2" PVC coupling fastened onto the Drain Tee (*9MPD mod- els)

Install Tee trap into bottom of tee.

Install the 1/2" CPVC street elbow on discharge of Trap

Install the black PVC drain connector (3/4" PVC x 1/2" CPVC from loose parts bag) as shown in the illustration above.

Cut the black Drain Tube (5/8" ID - in loose parts bag) to length to fit between Trap and tube connector through grommet.

Clamp both ends of the Drain Tube using clamps provided.

Glue the CPVC street elbow to the Trap using appropriate cleaner and solvent cement.

Connect the Tee trap and the main drain line exiting the casing as shown in Figure 18.

Note: It is recommended that all PVC piping and fitting connec- tions be fit up and inspected before final cementing. Both the in-

ternal Trap and the external Tee Trap must be primed before

operation. Verify all condensate drain connections are securely clamped. A coupling and clamps (in loose part bag) may be installed as shown for future servicing of the vent system.

440O1102004

E_

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Contents SingleStage Table of ContentsThis page for future reference KeepYES NOE YESSafety Rules Location and Clearances InstallationFrozenWater Pipe Hazard Typical Downflow Installation Installation RequirementsTypical Upflow Installation Dimensions & Clearances Leveling Requirements Air Openings and Connecting DuctsCombustion Ventilation Air Example Venting and Combustion Air CheckUnusually Tight Construction Ventilation AirVent and Combustion Air Piping For Two Pipe InstallationSingle Pipe N9MP1 Models Direct Vent N9MP2 ModelsPiping Insulation Guidelines TocompensateforoxygenburnedSee.Confined Space InstallaContaminated Combustion Air Vent and Combustion Air Piping GuidelinesN9MP1 & *9MPD Models Sizing Combustion Air and Vent PipeVent Termination Clearances Carbon Monoxide POISONING, Fire and Explosion HazardClearance Description 440O110200415cmforappliances10,OOOBTUH3kW,12 Condensate Drain Trap Freeze Protection CondensateDrain TrapUpflow Installations Top Vent See Figure Upflow Installations Top VentUpflow Installations Vent thru Left Side See Figure UpflowInstallationsVentthru LeftSideSwitch Side ViewOnly All ModelsVentthru RightSideAll Models Vent thru Right Side See Figure Downflow Left Side Vent and Trap SeeFigure Inlet 4=Downflow Right Side Vent and Trap See Figure Downflow Right Side Vent and TrapPVC 3/4 Coupling & Clamps 112ID Drain Hose On SomeHorizontal Left-Thru Top See Horizontal Left Thru TopHorizontal Left-Side Vent Horizontal Left-Side Vent See FigureYellowor black Horizontal Right thru Top16ID Rubber Tube\\ Relief Tube ExtensionHorizontal Right Side Vent SeeFigure HorizontalRight-SideVentConnecting Vent and Combustion Air Piping Connecting Tee Trap to Condensate Trap and Main Drain LineOpen Tee Tee TrapProper Sealing Procedure for Combustion Connecting Vent Pipes and TerminationVent Pipe Connection Fire HazardHorizontal Termination Using Exterior RisersVertical Termination Vent Termination ShieldingConcentric Vent and Combustion Air Sidewall Termination Multi Vent Termination ClearancesSidewall Inlet Vent and Exhaust Air Termination CmbustincncentricRoof -AirTerminationventandSupply Pressure Manifold Gas Pressure AdjustmentGas Supply Pressure IAIternate Input Ratings, USA onlyPressure NaturalFor the 50,000, 75,000, 100,000 and 125,000 Btuh Models TaiGeneral Derating Rules High Altitude Air Pressure SwitchElectrical SHOCK, Fire or Explosion Hazard Changing OrificesManual shut- off Gas Piping RequirementsLow Pressure ValveInstallations Electrical WiringPower SupplyWiring Humidifier/Electronic Air CleanerFan Timer Connections Fan Delay DIP Switch SettingsReduced Furnacelife Hazard Mountedto eithertheleftorrightDuctwork and Filter InstallationSizing InsulationDownflow Furnace Installation Filter Installation using Optional Filter RackCombustible Floor Installation Downflow applications, unless installing on nonFurnace Subbase SubbasesforCombustibleFloorsDimensionsFloorDimensions Adjust Pilot Burner Checks and AdjustmentsGas SupplyPressure StartupHeating and Continuous BlowerSpeed Same Temperature Rise CheckChanging Blower Speed Reduced Furnace Life HazardFIRE, EXPLOSION, or Carbon Monoxide Hazards Furnace MaintenanceHeating Request with Gas Supply Line Shut Off Circulating Fan G RequestHeating W Request Typical Gas Valve Honeywell Gas Valve Diagnostic Codes See FigureOFF ThanHoneywell SV9541M Smart Valve Sequence of Operation Flashes Flashes + I Flash Honeywell SV9541M Smart Valve Trouble shootingLED IndicatesVent Termination Clearances Concentric TerminationConcentric Vent Termination Kit # LED INDICATESCHECK/REPAIRTicalterminationispreferredFieldsuppliedpipeandfittingsare RequiredtocompletetheinstallationConcentric Vent and Combustion Air Side Termination Rain Cap to Vent Pipe AssemblyTable for N9MP2 Models 50,000 & 80,000 Btuh Furnaces Roof Overhang25-22-02 Concentric Vent Sidewall AttachmentAir Elbow N9MP2100F14B1 N9MP2100J20B1 N9MP2125J20B1 N9MP2075B12B1 N9MP2080F16B1Denotes Brand 25-23-30General Model SpecificationsSpecifications N9MP1 Gas & Ignition Specifications N9MP2BlowerData Specifications 9MPDFor 075 Models 3 Ton Units For 050 Models 3 Ton UnitsFor 100 Models Ton 19 & 22314 Units For 080 Models 4 Ton 19 & 22314 UnitsNeutral t IlttlData UI I BKw25-23-95 Functional Key Description Part125J 100J 125J1GB Non-Functional14B 20B 12B 16B 14B16B 14B 20B 12B No. Non-FunctionalN9MP1 N9MP2 Osob Key DescriptionPart not Illustrated NAHF002LPNumber 080F12B 075F12B 080J16B 100J14B 9MPD100J20B 128L20B Capacitor,7.SMfd.,370VKeyDescription No.Non- Functional Parts *gMPDNumber 050F12B 078F12B 080J16B 100J14B 100J2OB 125L20BNon- Functional Part GMPDNumber 050F12B 075F12B 080J16BNon- Functional Number 1013816 + Order from Service Parts 44001050F12B 075F12B 080J16B 100J14B IOOJ20B

9MPD100J20B1, N9MP2100J20B1, 9MPD050F12B1, N9MP1100J20B1, N9MP1125J20B1 specifications

The Sears N9MP1075B12B1, N9MPD125L20B1, N9MP1050B12B1, N9MPD080J16B1, and N9MP2125J20B1 are part of the trusted line of gas furnaces manufactured by Sears, specifically designed to deliver reliable heating solutions for residential applications. These models incorporate cutting-edge technology and robust engineering, making them popular choices among homeowners looking for efficiency and comfort.

One of the main features of these models is their high-efficiency operation. With Annual Fuel Utilization Efficiency (AFUE) ratings exceeding 90%, these furnaces convert a significant portion of fuel into usable heat, thereby reducing energy costs. The N9MP series employs a multi-speed blower system that optimizes airflow for enhanced comfort while minimizing noise levels, ensuring a pleasant indoor environment.

The N9MPD125L20B1 and N9MPD080J16B1 variants highlight their adaptability through dual-stage heating capabilities. This technology allows the furnace to adjust its output based on the thermal demands of the home, preventing energy wastage during milder conditions while providing robust heating during extreme cold spells. The two-stage combustion process not only improves comfort but also contributes to lower greenhouse gas emissions.

Durability is another hallmark of these Sears models. With heavy-duty heat exchangers crafted from high-quality materials, they are built to withstand the rigors of regular use. Additionally, the inclusion of advanced safety mechanisms ensures that the system operates securely, reducing potential risks associated with gas furnaces.

The N9MP2125J20B1 model stands out due to its whisper-quiet operation. Homeowners can enjoy a warm home without the disruptive sound commonly associated with traditional heating systems, thanks to the insulated cabinet design and efficient blower operation.

Furthermore, these models come equipped with user-friendly digital thermostats, which allow precise temperature control and programmable settings, enabling homeowners to tailor their heating needs to fit their lifestyle. The compatibility with smart home systems also adds convenience, enabling users to manage their heating remotely, saving even more energy.

In conclusion, the Sears N9MP1075B12B1, N9MPD125L20B1, N9MP1050B12B1, N9MPD080J16B1, and N9MP2125J20B1 gas furnaces exemplify innovation in heating technology. Their energy-efficient designs, advanced features, and durable construction make them reliable choices for homeowners seeking comfort and sustainability in their heating solutions.