Sears N9MP1, N9MP2, 9MPD manual Left

Page 25

Connectthe 3/4" OD rubber hose with the 90 ° bend to the large drain stub on the condensate trap and secure with a 3/4" clamp.

Route the hose to the drain stub on the bottom of the plastic transi- tion box. Cut off excess hose and discard. Connect the hose to the

drain stub on the transition and secure with a 3/4" clamp.

Connect the 5/8" OD rubber hose with the 90 ° bend to the right s-

tub on the vent fitting and secure with a 5/8" clamp.

Route the hose to the smaller drain stub on the condensate trap. Cut off excess hose and discard. Connect the hose to the drain

stub on the trap and secure with a 5/8" clamp.

NOTE: Route hoses to the condensate trap with no kinking or

binding for proper condensate drainage.

Downflow Installations (Single Pipe N9MP91 & Direct Vent N9MP2-A4 Models)

LEFT

Side

Ventin_

 

RIGHT Side Venting

 

VentFitting

<C>

 

 

 

& Clampi

Return

Air

 

Return Air

 

 

 

 

 

 

PVC Vent

 

 

 

 

 

Extension

 

 

 

 

 

 

 

 

 

Air Intake

 

 

 

 

 

 

Combustion

Combustion Blower)

Plastic

 

Air Pipe,

(Rotate 180°)

 

 

 

 

 

 

Modelshown have

 

 

 

 

two

pressure

 

 

 

 

switches

 

 

 

 

Pressure

Switch

PVC Vent

 

 

 

 

 

 

 

 

Hose, Transition

Extension

 

 

 

 

 

 

 

 

 

 

Pipe

Condensate

 

 

 

Yellow

VentFitting

Trap & Gasket

 

 

 

 

 

SupplyAir

DRAIN SIDE VIEW

 

 

 

5° to10°

2 PressureSwitch

 

 

 

Connectiononall125

Connectionsonall

 

models

models

except 125

 

 

 

 

dwg 25-24-04

 

Single

PressureSwitch

beangled 5°to10° also.

NOTE: TRAP MUST BE PRIMED BEFORE OPERATION

Downflow Installations - (Single Pipe & Direct Vent N9MP1 & N9MP2 Models) (See Figure 17)

NOTE: DO NOT make hose connections until the hose routing

and lengths have been determined. Remove the condensate trap and drain hoses from the furnace and secure the drain hoses to

the drain stubs on the trap with the hose clamps (position the clamps as shown in Figure 17). Install the condensate trap/hose assembly to the furnace casing. Hook one side ofthe"cla mp ears" on the drain stub through the hole in the casing and push the con- densate trap into position. Secure with the two screws. Recon-

nect the drain hoses to the stubs on the vent fitting and the plastic transition and secure with the clamps.

Mount the condensate drain trap in a vertical position to either the right or left side of the furnace using the two screws and gasket that are provided. If needed, remove the hole plugs from the fur- nace side panel and relocated to the open set of holes in the oppo- site side panel.

44001 111400

[_

Image 25
Contents SingleStage MP D 0 75 F 12 a # Denotes BrandJellJill 440 01 1114Date of Start-Up Furnace/Drip- Leg? YESCO2 ? 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 RequirementsEhr Unconfined Space InstallationFree 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 TransitionMountingScrews4 SomemodelsDrain Dual Certified *9MPD-A4 HorizontalLeft InstallationsModels 25-24-12Si.g.Pre...reSwitch Switch HoseRpeept.oT \ e.spre X3L/\Page ReturnAir Page Left Side Venting Drainstubonthetransitionandsecurewitha3/4clamp Satetrapandsecurewitha3/4clamp Boxandsecurewitha3/4clampStubonthecondensatetrapandsecurewitha3/4clamp Inlet VentFitting TPipe & ClampsReturn Air Cap Modelsshownhave TwopressureswitchesReturn Air ClampsLeft Combustion Air Pipe Connection Dual Certified or Connecting Vent and Combustion Air PipingVent Pipe Connection PVCHorizontal Termination Proper Sealing Procedure for Combustion BlowerVent 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 OrificesTypical Gas Piping for Upflow Natural Gas Input Rating CheckExample 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 + SoftLockoutVent Termination Clearances Concentric TerminationConcentric Vent Termination Kit # Concentric Vent Roof Installation ArerequiredtocompletetheinstallationConcentric Termination Kit NAHA001CV & NAHA002CV Venting Rain Cap to Vent Pipe AssemblyConcentric 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/II23OO Specifications 9MPDNAHA00SLV 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.