Sears N9MP2075B12B1, N9MP2050B12B1 manual Key Description Part, Functional, 100J 125J, 20B 12B

Page 56

IReplacement Parts - NgMP1 & NgMP2

Models - N9MP105OB12B1, N9MP1075B12B1, N9MP108OF16B1, N9MP11OOF14B1, N9MP11OOJ2OB1 &

N9MP1125J2OB1 - N9MP205OB12B1, N9MP2075B12B1, N9MP208OF16B1, N9MP21OOF14B1, N9MP21OOJ2OB1 & N9MP2125J2OB1 (Natural Gas)

Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

Key

 

Description

Part

 

 

N9MP1

 

 

 

 

N9MP2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No,

 

Functional

Number

050B

078B

080F

IOOF

100J

125J

050B

075B

080F

100F

100J

125J

 

 

 

 

 

12B

12B

16B

14B

20B

20B

12B

12B

16B

14B

20B

20B

1

Heat Exchanger,Primary

1012847

1

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

1012851

 

1

 

 

 

 

 

1

 

 

 

 

 

 

 

 

1012855

 

 

1

1

 

 

 

 

1

1

 

 

 

 

 

 

1012856

 

 

 

 

1

 

 

 

 

 

1

 

 

 

 

 

1012859

 

 

 

 

 

1

 

 

 

 

 

1

2

Heat Exchanger,Secondary

1013760

1

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

1013761

 

1

 

 

 

 

 

1

 

 

 

 

 

 

 

 

1013764

 

 

1

1

 

 

 

 

1

1

 

 

 

 

 

 

1013765

 

 

 

 

1

 

 

 

 

 

1

 

 

 

 

 

1013766

 

 

 

 

 

1

 

 

 

 

 

1

3

Motor, BIr

1/115 1/2CCW

1172488

1

 

1

 

 

 

1

 

1

 

 

 

 

 

 

1/115 1/2CCW

1172487

 

1

 

1

 

 

 

1

 

1

 

 

 

 

 

1/1153/4CCW

1172489

 

 

 

 

1

1

 

 

 

 

1

1

4

Mount, Motorkit_

1014824

1

1

 

 

 

 

1

1

 

 

 

 

 

 

 

 

1014823

 

 

1

 

1

1

 

 

1

 

1

1

 

 

 

 

1014822

 

 

 

1

 

 

 

 

 

1

 

 

5

Wheel, Blower

1013011

1

1

 

 

 

 

1

1

 

 

 

 

 

 

 

 

1011420

 

 

1

1

1

1

 

 

1

1

1

1

6

Transformer

1012722

1

1

1

1

1

1

1

1

1

1

1

1

7

Capacitor,

10Mfd, 370V

1171729

1

 

1

 

 

 

1

 

1

 

 

 

 

 

 

7.SMfd.,370V

1171728

 

1

 

1

 

 

 

1

 

1

 

 

 

 

 

40Mfd.,370V

1171982

 

 

 

 

1

1

 

 

 

 

1

1

8

Control,Fan Timer

1014460

1

1

1

1

1

1

1

1

1

1

1

1

9

Switch, Interlock

1171981

1

1

1

1

1

1

1

1

1

1

1

1

10

Switch, Pressure

1013802

1

1

 

 

1

 

1

 

 

 

1

 

 

 

 

 

1013811

 

 

1

 

 

 

 

 

1

 

 

 

 

 

 

 

1013801

 

 

 

1

 

 

 

1

 

1

 

 

 

 

 

 

1013166

 

 

 

 

 

1

 

 

 

 

 

1

11

Blower,Exhaust(Jakel)

1014338

1

1

1

1

1

 

1

1

1

1

1

 

 

 

 

 

1014341

 

 

 

 

 

1

 

 

 

 

 

1

12

Valve,Gas HSP Nat.

1013350

1

1

1

1

1

1

1

1

1

1

1

1

13

Burner,PilotHSP

1008731

1

1

1

1

1

1

1

1

1

1

1

1

14

Igniter/SensorHSP

1009524

1

1

1

1

1

1

1

1

1

1

1

1

15

Orifice,Burner#42 Nat.

1011351

2

3

 

4

4

5

2

3

 

4

4

5

 

 

 

#44 Nat.

1011352

 

 

4

 

 

 

 

 

4

 

 

 

16

Switch, Limit(Ronout)

1013102

2

2

2

2

2

2

2

2

2

2

2

2

17

BurnerAssembly

1008723

1

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

1008724

 

1

 

 

 

 

 

1

 

 

 

 

 

 

 

 

1008725

 

 

1

1

1

 

 

 

1

1

1

 

 

 

 

 

1008726

 

 

 

 

 

1

 

 

 

 

 

1

18

Switch, Limit(Main)

34335001

 

1

 

 

 

 

 

1

 

 

 

 

 

 

 

 

34335002

1

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

1320361

 

 

1

1

 

 

 

 

1

1

 

 

 

 

 

 

1008445

 

 

 

 

 

1

 

 

 

 

 

1

 

 

 

 

1320367

 

 

 

 

1

 

 

 

 

 

1

 

19

Orifice,

Pilot

.018

503211

1

1

1

1

1

1

1

1

1

1

1

1

_See Table below for bellyband location on motor

 

 

 

 

 

 

 

 

 

 

 

Bellyband

Location on Motor

 

 

 

 

 

 

 

 

 

 

 

 

 

Model

N9MPI/2

A(in.)

 

 

 

 

 

 

 

 

 

 

 

 

 

050B12B1

 

2.09"

 

 

 

 

 

 

 

 

 

 

 

 

 

075B12B1

 

1.38"

 

 

 

 

 

 

 

 

 

 

 

 

 

080F16B1

 

1.81"

 

 

 

 

 

 

 

 

 

 

 

 

 

100F14B1

 

1.38"

 

 

 

 

 

 

 

 

 

 

 

 

 

100J20B1

 

1.65"

 

 

 

 

 

 

 

 

 

 

 

 

 

125J20B1

 

1.65"

 

 

 

 

 

 

 

 

 

 

 

 

 

_]

440 01 102004

Page 55 Page 57
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Page 55 Page 57
Contents Table of Contents SingleStageKeep This page for future referenceYES 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 Venting and Combustion Air Check ExampleUnusually Tight Construction Ventilation AirFor Two Pipe Installation Vent and Combustion Air PipingSingle Pipe N9MP1 Models Direct Vent N9MP2 ModelsTocompensateforoxygenburnedSee.Confined Space Installa Piping Insulation GuidelinesContaminated Combustion Air Vent and Combustion Air Piping GuidelinesSizing Combustion Air and Vent Pipe N9MP1 & *9MPD ModelsVent Termination Clearances Carbon Monoxide POISONING, Fire and Explosion Hazard440O1102004 Clearance Description15cmforappliances10,OOOBTUH3kW,12 CondensateDrain Trap Condensate Drain Trap Freeze ProtectionUpflow Installations Top Vent Upflow Installations Top Vent See FigureUpflowInstallationsVentthru LeftSide Upflow Installations Vent thru Left Side See FigureSwitch Side ViewOnly All ModelsVentthru RightSideAll Models Vent thru Right Side See Figure Inlet 4= Downflow Left Side Vent and Trap SeeFigureDownflow Right Side Vent and Trap Downflow Right Side Vent and Trap See FigurePVC 3/4 Coupling & Clamps 112ID Drain Hose On SomeHorizontal Left Thru Top Horizontal Left-Thru Top SeeHorizontal Left-Side Vent See Figure Horizontal Left-Side VentHorizontal Right thru Top Yellowor black16ID Rubber Tube\\ Relief Tube ExtensionHorizontalRight-SideVent Horizontal Right Side Vent SeeFigureConnecting Tee Trap to Condensate Trap and Main Drain Line Connecting Vent and Combustion Air PipingOpen Tee Tee TrapConnecting Vent Pipes and Termination Proper Sealing Procedure for CombustionVent Pipe Connection Fire HazardUsing Exterior Risers Horizontal TerminationVertical Termination Vent Termination ShieldingMulti Vent Termination Clearances Concentric Vent and Combustion Air Sidewall TerminationSidewall Inlet Vent and Exhaust Air Termination CmbustincncentricRoof -AirTerminationventandManifold Gas Pressure Adjustment Supply PressureGas Supply Pressure IAIternate Input Ratings, USA onlyNatural PressureFor the 50,000, 75,000, 100,000 and 125,000 Btuh Models TaiHigh Altitude Air Pressure Switch General Derating RulesElectrical SHOCK, Fire or Explosion Hazard Changing OrificesGas Piping Requirements Manual shut- offLow Pressure ValveElectrical Wiring InstallationsPower SupplyWiring Humidifier/Electronic Air CleanerFan Delay DIP Switch Settings Fan Timer ConnectionsReduced Furnacelife Hazard Mountedto eithertheleftorrightInstallation Ductwork and FilterSizing InsulationFilter Installation using Optional Filter Rack Downflow Furnace InstallationCombustible Floor Installation Downflow applications, unless installing on nonFurnace Subbase SubbasesforCombustibleFloorsDimensionsFloorDimensions Checks and Adjustments Adjust Pilot BurnerGas SupplyPressure StartupTemperature Rise Check Heating and Continuous BlowerSpeed SameChanging Blower Speed Reduced Furnace Life HazardFurnace Maintenance FIRE, EXPLOSION, or Carbon Monoxide HazardsHeating Request with Gas Supply Line Shut Off Circulating Fan G RequestHeating W Request Gas Valve Diagnostic Codes See Figure Typical Gas Valve HoneywellOFF ThanHoneywell SV9541M Smart Valve Sequence of Operation Honeywell SV9541M Smart Valve Trouble shooting Flashes Flashes + I FlashLED IndicatesConcentric Termination Vent Termination ClearancesConcentric Vent Termination Kit # LED INDICATESCHECK/REPAIRRequiredtocompletetheinstallation TicalterminationispreferredFieldsuppliedpipeandfittingsareRain Cap to Vent Pipe Assembly Concentric Vent and Combustion Air Side TerminationTable for N9MP2 Models 50,000 & 80,000 Btuh Furnaces Roof Overhang25-22-02 Concentric Vent Sidewall AttachmentAir Elbow N9MP2075B12B1 N9MP2080F16B1 N9MP2100F14B1 N9MP2100J20B1 N9MP2125J20B1Denotes Brand 25-23-30General Model SpecificationsSpecifications N9MP1 Specifications N9MP2 Gas & IgnitionSpecifications 9MPD BlowerDataFor 050 Models 3 Ton Units For 075 Models 3 Ton UnitsFor 100 Models Ton 19 & 22314 Units For 080 Models 4 Ton 19 & 22314 UnitsIlttl Neutral tData UI I BKw25-23-95 Key Description Part Functional125J 100J 125JNon-Functional 1GB14B 20B 12B 16B 14BNo. Non-Functional 16B 14B 20B 12BKey Description N9MP1 N9MP2 OsobPart not Illustrated NAHF002LP9MPD Number 080F12B 075F12B 080J16B 100J14B100J20B 128L20B Capacitor,7.SMfd.,370VParts *gMPD KeyDescription No.Non- FunctionalNumber 050F12B 078F12B 080J16B 100J14B 100J2OB 125L20BPart GMPD Non- FunctionalNumber 050F12B 075F12B 080J16B1013816 + Order from Service Parts 44001 Non- Functional Number050F12B 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.
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