Sears N9MP1050B12B1 Natural, Pressure, For the 50,000, 75,000, 100,000 and 125,000 Btuh Models

Page 30

MANIFOLDPRESSUREAND ORIFICE SIZE FOR HIGHALTITUDEAPPLICATIONS

iiiiiiii_ ii_!!!!!!! i

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NATURAL

GAS MANIFOLD

PRESSURE

(" w.c.)

 

 

 

 

 

 

..............................................................

FOR THE 50,000, 75,000, 100,000 and 125,000 BTUH MODELS

 

 

 

 

HEATING

 

 

 

 

MEAN

ELEVATION FEET ABOVE SEA LEVEL

 

 

 

 

0 to

2001 to

3001

to

4001 to

5001 to

6001 to

7001 to

VALUE

2000

3000

4000

 

5000

 

6000

7000

8000

at ALTITUDE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BTU/CU. FT,

Orifice

Manifold

Orifice

Manifold

Orifice

Manifold

Orifice Manifold Orifice Manifold Orifice

Manifold

Orifice

Manifold

 

No.

Pressure No.

Pressure No.

Pressure

No.

Pressure

No.

Pressure

No.

Pressure No.

Pressure

700

 

 

 

 

 

 

 

 

 

 

 

 

41

3.7

725

 

 

 

 

 

 

 

 

 

 

41

3.7

41

3.4

750

 

 

 

 

 

 

 

 

 

 

41

3.5

42

3.6

775

 

 

 

 

 

 

 

 

41

3.6

42

3.6

42

3.3

800

 

 

 

 

 

 

41

3.6

42

3,7

42

3,4

42

3.1

825

 

 

 

 

41

3.7

41

3.4

42

3.5

42

3.2

42

2.9

850

 

 

 

 

41

3.5

42

3.6

42

3,3

42

3,0

42

2.8

875

 

 

41

3.6

42

3.6

42

3.4

42

3.1

42

2.8

42

2.6

900

 

 

42

3,7

42

3,4

42

3.2

42

2.9

42

2,7

42

2.5

925

41

3.7

42

3,5

42

3,3

42

3.0

42

2,8

42

2,5

42

2.3

950

41

3.5

42

3.3

42

3.1

42

2.9

42

2,6

42

2.4

43

2.7

975

42

3.7

42

3,2

42

2,9

42

2.7

42

2,5

42

2,3

43

2.6

1000

42

3.5

42

3.0

42

2.8

42

2.6

42

2.4

43

2.7

43

2.4

1050

42

3.2

42

2.7

42

2,5

42

2.3

43

2.6

 

 

 

 

1100

42

2.9

42

2.5

42

2.3

43

2.6

 

 

 

 

 

 

NOTE: Natural gas data is based on 0.60 specific gravity. For fuels with different specific gravity consult the National Fuel Gas Code ANSI Z223.1-2002/NFPA 54-2002 or National Standard of Canada, Natural Gas And Propane Installation Code CSA B149.1-00.

Ta_i

 

CPG or PROPANE

GAS MANIFOLD PRESSURE (" w.c.)

 

 

................................................................................................................

FOR THE 50,000, 75,000, 100,000 and 125,000 BTUH MODELS

 

 

HEATING

VALUE

 

 

 

MEAN ELEVATION

FEET ABOVE

SEA LEVEL

 

 

at ALTITUDE

0 to

2001

to

3001 to

4001 to

5001 to

6001 to

7001 to

BTU/CU,

FT.

2000

3000

4000

5000

6000

7000

8000

2500

10.0

10.0

 

9.0

10.0

9.4

8.5

10.0

Orifice

Size

#54

#54

 

#54

#55

#55

#55

 

NOTE: Propane data is based on 1.53 specific gravity. For fuels with different specific gravity consult the National Fuel Gas Code ANSI Z223.1-2002/N FPA 54-2002 or National Standard Of Canada, Natural Gas And Propane Installation Code CSA B149.1-00.

 

NATURAL

GAS MANIFOLD

PRESSURE

(" w.c.)

 

 

 

 

 

 

..............................................................

FOR THE 80,000 BTUH MODELS

 

 

 

 

 

 

 

 

 

HEATING

 

 

 

 

MEAN

ELEVATION FEET ABOVE SEA LEVEL

 

 

 

 

0 to

2001 to

3001

to

4001 to

5001 to

6001 to

7001 to

VALUE

2000

3000

4000

 

5000

 

6000

7000

8000

at ALTITUDE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BTU/CU. FT.

Orifice

Manifold

Orifice

Manifold

Orifice

Manifold

Orifice Manifold Orifice Manifold Orifice

Manifold

Orifice

Manifold

 

No.

Pressure No.

Pressure No.

Pressure

No.

Pressure

No.

Pressure

No.

Pressure No.

Pressure

700

 

 

 

 

 

 

 

 

 

 

 

 

44

3.7

725

 

 

 

 

 

 

 

 

 

 

44

3.7

44

3.4

750

 

 

 

 

 

 

 

 

 

 

44

3,5

44

3.2

775

 

 

 

 

 

 

 

 

44

3.5

44

3.2

44

3.0

800

 

 

 

 

 

 

44

3.6

44

3.3

44

3.0

44

2.8

825

 

 

 

 

44

3,7

44

3.4

44

3,1

44

2,9

44

2.6

850

 

 

 

 

44

3.5

44

3.2

44

2,9

44

2.7

44

2.5

875

 

 

44

3,5

44

3,3

44

3.0

44

2.8

44

2,5

44

2.3

900

 

 

44

3.3

44

3.1

44

2.8

44

2.6

44

2.4

45

2.7

925

44

3.7

44

3,2

44

2,9

44

2.7

44

2.5

44

2,3

45

2.5

950

44

3.5

44

3,0

44

2,8

44

2.6

44

2,4

45

2.6

45

2.4

975

44

3.3

44

2,8

44

2.6

44

2.4

45

2.7

45

2.5

45

2.3

1000

44

3.2

44

2,7

44

2,5

44

2.3

45

2.6

45

2.4

46

2.3

1050

44

2.9

44

2.5

44

2.3

45

2.5

45

2.3

 

 

 

 

1100

44

2.6

45

2.7

45

2.5

45

2.3

 

 

 

 

 

 

NOTE: Natural gas data is based on 0.60 specific gravity. For fuels with different specific gravity consult the National Fuel Gas Code ANSI Z223.1-2002/NFPA 54-2002 or National Standard of Canada, Natural Gas And Propane Installation Code CSA B149.1-00.

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Contents Table of Contents SingleStageYES NOE KeepThis page for future reference YESSafety Rules Installation FrozenWater Pipe HazardLocation and Clearances Installation Requirements Typical Upflow InstallationTypical Downflow Installation Dimensions & Clearances Leveling Air Openings and Connecting Ducts Combustion Ventilation AirRequirements Unusually Tight Construction Venting and Combustion Air CheckExample Ventilation AirSingle Pipe N9MP1 Models For Two Pipe InstallationVent and Combustion Air Piping Direct Vent N9MP2 ModelsContaminated Combustion Air TocompensateforoxygenburnedSee.Confined Space InstallaPiping Insulation Guidelines Vent and Combustion Air Piping GuidelinesVent Termination Clearances Sizing Combustion Air and Vent PipeN9MP1 & *9MPD Models 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 FigureSwitch UpflowInstallationsVentthru LeftSideUpflow Installations Vent thru Left Side See Figure Side ViewAll ModelsVentthru RightSide All Models Vent thru Right Side See FigureOnly Inlet 4= Downflow Left Side Vent and Trap SeeFigurePVC 3/4 Downflow Right Side Vent and TrapDownflow Right Side Vent and Trap See Figure Coupling & Clamps 112ID Drain Hose On SomeHorizontal Left Thru Top Horizontal Left-Thru Top SeeHorizontal Left-Side Vent See Figure Horizontal Left-Side Vent16ID Rubber Tube\\ Horizontal Right thru TopYellowor black Relief Tube ExtensionHorizontalRight-SideVent Horizontal Right Side Vent SeeFigureOpen Tee Connecting Tee Trap to Condensate Trap and Main Drain LineConnecting Vent and Combustion Air Piping Tee TrapVent Pipe Connection Connecting Vent Pipes and TerminationProper Sealing Procedure for Combustion Fire HazardVertical Termination Using Exterior RisersHorizontal Termination Vent Termination ShieldingSidewall Inlet Vent and Exhaust Air Termination Multi Vent Termination ClearancesConcentric Vent and Combustion Air Sidewall Termination CmbustincncentricRoof -AirTerminationventandGas Supply Pressure Manifold Gas Pressure AdjustmentSupply Pressure IAIternate Input Ratings, USA onlyFor the 50,000, 75,000, 100,000 and 125,000 Btuh Models NaturalPressure TaiElectrical SHOCK, Fire or Explosion Hazard High Altitude Air Pressure SwitchGeneral Derating Rules Changing OrificesLow Pressure Gas Piping RequirementsManual shut- off ValvePower SupplyWiring Electrical WiringInstallations Humidifier/Electronic Air CleanerReduced Furnacelife Hazard Fan Delay DIP Switch SettingsFan Timer Connections Mountedto eithertheleftorrightSizing InstallationDuctwork and Filter InsulationCombustible Floor Installation Filter Installation using Optional Filter RackDownflow Furnace Installation Downflow applications, unless installing on nonSubbasesforCombustibleFloorsDimensions FloorDimensionsFurnace Subbase Gas SupplyPressure Checks and AdjustmentsAdjust Pilot Burner StartupChanging Blower Speed Temperature Rise CheckHeating and Continuous BlowerSpeed Same Reduced Furnace Life HazardFurnace Maintenance FIRE, EXPLOSION, or Carbon Monoxide HazardsCirculating Fan G Request Heating W RequestHeating Request with Gas Supply Line Shut Off OFF Gas Valve Diagnostic Codes See FigureTypical Gas Valve Honeywell ThanHoneywell SV9541M Smart Valve Sequence of Operation LED Honeywell SV9541M Smart Valve Trouble shootingFlashes Flashes + I Flash IndicatesConcentric Vent Termination Kit # Concentric TerminationVent Termination Clearances LED INDICATESCHECK/REPAIRRequiredtocompletetheinstallation TicalterminationispreferredFieldsuppliedpipeandfittingsareTable for N9MP2 Models 50,000 & 80,000 Btuh Furnaces Rain Cap to Vent Pipe AssemblyConcentric Vent and Combustion Air Side Termination Roof OverhangConcentric Vent Sidewall Attachment Air Elbow25-22-02 Denotes Brand N9MP2075B12B1 N9MP2080F16B1N9MP2100F14B1 N9MP2100J20B1 N9MP2125J20B1 25-23-30Model Specifications Specifications N9MP1General Specifications N9MP2 Gas & IgnitionSpecifications 9MPD BlowerDataFor 100 Models Ton 19 & 22314 Units For 050 Models 3 Ton UnitsFor 075 Models 3 Ton Units For 080 Models 4 Ton 19 & 22314 UnitsData IlttlNeutral t UI I BKw25-23-95 125J Key Description PartFunctional 100J 125J14B 20B Non-Functional1GB 12B 16B 14BNo. Non-Functional 16B 14B 20B 12BPart not Illustrated Key DescriptionN9MP1 N9MP2 Osob NAHF002LP100J20B 128L20B 9MPDNumber 080F12B 075F12B 080J16B 100J14B Capacitor,7.SMfd.,370VNumber 050F12B 078F12B 080J16B 100J14B 100J2OB Parts *gMPDKeyDescription No.Non- Functional 125L20BNumber 050F12B 075F12B Part GMPDNon- Functional 080J16B050F12B 075F12B 080J16B 100J14B 1013816 + Order from Service Parts 44001Non- Functional Number 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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