Sears N9MP2, N9MP1 O50B 075B 080F LOOF LOOJ 125J, Ioof, LOOJ 125J Non-Functional Number 12A, 1GA

Page 57

IReplacement Parts - NgMP1 & NgMP2

Models - N9MP1050B12A4, N9MP1075B12A4, N9MP1080F16A4, N9MP1100F14A4, N9MP1100J20A4 &

N9MP1125J20A4 - N9MP2050B12A4, N9MP2075B12A4, N9MP2080F16A4, N9MP2100F14A4, N9MP2100J20A4 & N9MP2125J20A4 (Natural Gas)

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

Key

Description

Part

 

 

N9MP1

 

 

 

 

N9MP2

 

 

 

 

 

O50B

075B

080F

lOOF

lOOJ

125J

O50B

075B

080F

IOOF

lOOJ

125J

No.

Non-Functional

Number

12A

12A

1GA

14A

20A

20A

12A

12A

16A

14A

20A

20A

A

Panel,Top

1012324

1

 

 

 

 

 

 

 

 

 

 

 

1012325

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1012326

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1012954

 

 

 

 

 

 

1

1

 

 

 

 

 

 

1012955

 

 

 

 

 

 

 

 

1

1

 

 

 

 

1012956

 

 

 

 

 

 

 

 

 

 

 

 

B

Gasket,Top Panel

1012602

1

1

 

 

 

 

1

1

 

 

 

 

 

 

1012603

 

 

1

1

 

 

 

 

1

1

 

 

 

 

1012604

 

 

 

 

1

1

 

 

 

 

 

 

F

Partition,Blower

1014009

1

1

 

 

 

 

 

 

 

 

 

 

 

 

1014010

 

 

1

1

 

 

 

 

 

 

 

 

 

 

1014011

 

 

 

 

1

1

 

 

 

 

 

 

 

 

1014015

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1014014

 

 

 

 

 

 

 

 

1

1

 

 

 

 

1014016

 

 

 

 

 

 

 

 

 

 

1

1

H

Housing,Blower

1012972

1

1

 

 

 

 

1

1

 

 

 

 

1012888

 

 

1

1

1

1

 

 

1

1

1

1

 

 

 

 

 

 

J

Panel,BlowerCutoff

721020013

1

1

 

 

 

 

1

1

 

 

 

 

 

 

721020008

 

 

1

1

1

1

 

 

1

1

1

1

K

Hanger,Blower

1012328

2

2

2

2

2

2

2

2

2

2

2

2

 

 

 

 

 

 

 

 

 

 

 

 

 

L

Door,Blower

1013215

1

1

 

 

 

 

 

 

 

 

 

 

 

 

1013216

 

 

1

1

 

 

 

 

 

 

 

 

 

 

1013217

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1013207

 

 

 

 

 

 

1

1

 

 

 

 

 

 

1013208

 

 

 

 

 

 

 

 

1

1

 

 

 

 

1013209

 

 

 

 

 

 

 

 

 

 

1

1

M

Bracket,DoorFiller

1014005

1

1

 

 

 

 

1

1

 

 

 

 

 

 

1014006

 

 

 

 

 

 

 

 

1

1

 

 

 

 

1014007

 

 

 

 

 

 

 

 

 

 

1

1

N

Door,Front

1013789

1

1

 

 

 

 

 

 

 

 

 

 

 

 

1013790

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1013791

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1013210

 

 

 

 

 

 

1

1

 

 

 

 

 

 

1013211

 

 

 

 

 

 

 

 

1

1

 

 

 

 

1013212

 

 

 

 

 

 

 

 

 

 

1

1

O

Clamp,Capacitor

1095020

1

1

1

1

 

 

1

1

1

1

 

 

 

 

1095022

 

 

 

 

1

1

 

 

 

 

1

1

P

TransitionAssembly

1012280

1

1

 

 

 

 

1

1

 

 

 

 

 

 

1012281

 

 

1

1

 

 

 

 

1

1

 

 

 

 

1012282

 

 

 

 

1

1

 

 

 

 

1

1

Q

Gasket, Blower

1014425

1

1

1

1

1

1

1

1

1

1

1

1

R

Bear&Insulating

1012417

1

1

 

 

 

 

1

1

 

 

 

 

 

 

1012418

 

 

1

1

 

 

 

 

1

1

 

 

 

 

1012419

 

 

 

 

1

1

 

 

 

 

1

1

S

Box,Collector

1012128

1

1

 

 

 

 

1

1

 

 

 

 

 

 

1012244

 

 

1

1

 

 

 

 

1

1

 

 

 

 

1012245

 

 

 

 

1

1

 

 

 

 

1

1

T

Gask_,Transition

1013079

1

1

 

 

 

 

1

1

 

 

 

 

 

 

1013080

 

 

1

1

 

 

 

 

1

1

 

 

 

 

1013083

 

 

 

 

1

1

 

 

 

 

1

1

U

Gask_, CollectorBox

1012593

1

1

 

 

 

 

1

1

 

 

 

 

 

 

1012594

 

 

1

1

 

 

 

 

1

1

 

 

 

 

1012595

 

 

 

 

1

1

 

 

 

 

1

1

V

Partition,FrontHtExchanger

1012646

1

 

 

 

 

 

1

 

 

 

 

 

 

 

1012647

 

1

 

 

 

 

 

1

 

 

 

 

 

 

1012649

 

 

1

1

 

 

 

 

1

1

 

 

 

 

1012651

 

 

 

 

1

 

 

 

 

 

1

 

 

 

1012652

 

 

 

 

 

1

 

 

 

 

 

1

44001 111400

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Page 56 Page 58
Contents SingleStage MP D 0 75 F 12 a # Denotes BrandJellJill 440 01 1114Furnace/Drip- Leg? YES Date of Start-UpCO2 ? Frozen and Burst Water Pipe Hazard Frozen Water Pipe HazardTypical Upflow Installation InstallationLocation and Clearances Winter ShutdownInstallation Positions Installation RequirementsFurnace Installation Considerations LevelingVENTrgMPD Dimensions & ClearancesAiRI.TAKE TOPAir Openings and ConnectingDucts Combustion & Ventilation Air For Single Pipe InstallationHorizontal Furnace Installation Confined Space Installation RequirementsUnconfined Space Installation EhrFree Area Vent Check Venting and Combustion Air CheckMake the Following Check HoodSingle Pipe N9MP1 Models Vent and Combustion Air PipingDirect Vent N9MP2 Models Dual Certified gMPDModelsSizing Combustion Air and Vent Pipe Piping Insulation GuidelinesPipe Diameter Table N9MP2 Models Vent Termination ClearancesCondensate Drain Trap Freeze Protection Condensate Drain TrapUnited States Only Canada See Canadian Fuel Gas Code OtherThanYellowPlasticCap Upflow Installations Dual Certified *9MPD-A4 ModelsDrainLine TransitionSomemodels MountingScrews4Drain Dual Certified *9MPD-A4 HorizontalLeft InstallationsModels 25-24-12Si.g.Pre...reSwitch Switch HoseRpeept.oT \ e.spre X3L/\Page ReturnAir Page Left Side Venting Satetrapandsecurewitha3/4clamp Boxandsecurewitha3/4clamp Drainstubonthetransitionandsecurewitha3/4clampStubonthecondensatetrapandsecurewitha3/4clamp VentFitting TPipe & Clamps InletReturn Air Cap Modelsshownhave TwopressureswitchesReturn Air ClampsLeft Combustion Air Pipe Connection Dual Certified or Connecting Vent and Combustion Air PipingVent Pipe Connection PVCProper Sealing Procedure for Combustion Blower Horizontal TerminationVent Pipe Checkholesizesbymakingsureitissmallerthan the cou Using Exterior RisersVertical Termination Vent Termination ShieldingConcentric Vent and Combustion Air Sidewall Termination Ei271Recommended Alternate Installation for Sustained ColdSidewall Inlet Vent and Exhaust Air Termination Rooftop Inlet Vent and Exhaust Air TerminationAlternate Btuh Input RatingsUSA Only Manifold Gas Pressure AdjustmentSupplyPressure Gas Supply PressureChanging Orifices for High Altitude High Altitude Air Pressure SwitchGeneral Derating Rules Changing OrificesNatural Gas Input Rating Check Typical Gas Piping for UpflowExample Power SupplyWiring Electrical WiringHumidifier/Electronic Air Cleaner Gas Piping RequirementsFan Delay DIP Switch Settings InstallationFan Timer Connections Ductwork and FilterSizing Filter Installation using Optional Filter RackInsulation FiltersAvailablefromyourdistributor StandoffFilterRack Combustible Floor InstallationAddition Of Air Conditioning Ubbase for Combustible FloorCoil Cabinet Furnace SubbaseAdjust Pilot Burner Checks and AdjustmentsTemperature Rise Check Main Burner Flame CheckHeating and Continuous BlowerSpeed the Same Tochecktemperaturerise,usethefollowingprocedureChanging Blower Speed Continuous Fan OperationCirculating Fan G Request Gas Valve Diagnostic Codes See FigureHeating Request with Gas Supply Line Shut Off OFFTypical Gas Valve Honeywell Honeywell SV9541M Flashes Honeywell SV9541M Smart Valve Trouble shootingFlashes + Flashes + SoftLockoutConcentric Termination Vent Termination ClearancesConcentric Vent Termination Kit # Concentric Vent Roof Installation ArerequiredtocompletetheinstallationRain Cap to Vent Pipe Assembly Concentric Termination Kit NAHA001CV & NAHA002CV VentingConcentric Vent and Combustion Air Side Termination 25-22-02 Concentric Vent Sidewall Attachment440011114O0 N9MP2100F14A4 N9MP2100J20A4 N9MP2125J20A4 N9MP2075B12A4 N9MP2080F16A4Save This Manual For Future Reference Denotes BrandGeneral Specifications N9MP1Snap HW HSP Hwhsp Specifications N9MP2NAHA001LV NAHAO01LV NAHA002LV PSC/I/2 PSC/II2Specifications 9MPD 3OONAHA00SLV For 100 Models Ton 19 & 22314 Units For 075 Models 3 Ton UnitsFor 100 Models 5 Ton 223/4 Units For 125 Models 5 Ton UnitsDisconnect Before Servicing Ladder Diagram Connection DiagramD22 = = =@O,cFF18 25-23-95Functional Key Description Part125J 100J 125JIoof O50B 075B 080F LOOF LOOJ 125JLOOJ 125J Non-Functional Number 12A 1GANgMP1 050B 075B 080F 100F 100J 125J Number KeyDescription No. Non-Functional100F 100J 16A 14A 20AHeat Exchanger,Primary Heat Exchanger,Secondary KeyDescription No.FunctionalGMPD Number 050F12AKeyDescription No.Non- Functional 080J16A Models *9MPDO50F12A4, Natural Gas Replacement part suppliedKey Description Non-FunctionalNon- Functional Number

9MPD, N9MP1, N9MP2 specifications

The Sears N9MP2, N9MP1, and 9MPD are prominent models in the realm of residential heating systems, specifically designed to provide efficient and effective heating solutions. These models are part of Sears' commitment to quality and innovation, making them a popular choice among homeowners seeking reliability and performance.

The N9MP2 is a high-efficiency multi-speed gas furnace that boasts an impressive AFUE (Annual Fuel Utilization Efficiency) rating. This feature allows the furnace to convert a significant portion of fuel into usable heat, which effectively translates to lower energy bills for homeowners. The unit is equipped with a two-stage gas valve that provides increased comfort by adjusting the heating output based on demand, ensuring an even temperature throughout the home.

The N9MP1, like its counterpart, is known for its reliability and efficiency. It offers a single-stage operation that is ideal for homes needing consistent heating without the necessity for the more complex stages present in two-stage systems. This model also has a good AFUE rating, making it a cost-effective solution for families looking to reduce their heating expenses. Its design is tailored for easy installation and maintenance, allowing homeowners to keep their heating systems running at optimal performance without hassle.

The 9MPD model takes a step further with its advanced technology integration. It features a sophisticated control board that allows for easier diagnostics and enhanced system management. The 9MPD is also designed with quiet operation in mind, employing advanced sound-reduction technologies to minimize noise levels during heating cycles. Homeowners will appreciate the peace and quiet it brings, particularly in shared living spaces.

All three models are equipped with high-quality insulation and specialized heat exchangers that enhance their thermal efficiency. Additionally, they are designed with safety features such as automatic shut-off systems and robust flame rollout protection, ensuring a safe heating experience.

In terms of characteristics, these models are generally constructed with durable materials, designed to endure harsh weather conditions while providing consistent heating. They can be connected to various home automation systems, which adds to their appeal for tech-savvy consumers.

In conclusion, the Sears N9MP2, N9MP1, and 9MPD represent a comprehensive lineup of reliable, efficient, and technologically advanced heating systems suitable for contemporary homes. Their dedication to performance ensures that homeowners enjoy a warm and energy-efficient environment throughout the chilly seasons.
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