Sears N9MP1, N9MP2, 9MPD manual SingleStage

Page 1

904

SingleStage

N9MP1 & N9MP2

*9MPD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SAFETY

 

REQUIREMENTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Recognize

safety

information.

This is the

safety-alert

symbol/

A

._\.

When

you

see

this

symbol

on

the

furnace

and

in instructions

or manuals

be alert

 

to the

potential

for personal injury.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Understand

the

signal

words

DANGER,

WARNING,

or

CAUTION.

These

words

 

are

used

with

the

safety-alert

symbol.

 

DANGER

identifies

the

most

serious

hazards,

those

that

will

result

in severe

personal

injury

or death.

WARNING signifies

a hazard

that

could

 

result

in

personal

injury

or

death.

CAuT__N

is

used

t_

identify

unsafe

_ractices

that

c_u_d

resu_t in min_r

 

_ers_na_

injury

_r

_r_duct

and _r__erty

 

damage.

 

 

 

 

Installing

and

servicing

 

heating

equipment

 

can

be hazardous

due

to gas

and

electrical

components.

Only trained

 

and

qualified

personnel

should

install, repair, or service heating equipment.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Untrained

service

personnel

can

perform

basic

maintenance

functions

such

as

cleaning

and

replacing

air

filters.

All

other

operations

 

must

be

performed

by trained

service

personnel.

 

When

working

on heating

equipment,

observe

precautions

in the

literature,

 

on

tags,

and

on

labels

attached

to or

shipped

with the unit

and

other

safety precautions

that may apply.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Follow

all

safety

codes.

 

In

the

 

United

 

States,

follow

all

safety

codes

including

the

current

edition

National

Fuel

Gas

Code

(NFGC)

NFPA

No.

54/ANSIZ223.1.

 

InCanada,

 

refer

tothecurrent

 

editionofthe

 

NationalStandard

 

Canada CAN/CGA-B149.1-

 

and.2-M91

 

NaturalGasand

 

Propane

InstallationCodes

 

(NSCNGPIC).

 

Wearsafetyglassesandworkgloves.

 

 

Havefireextinguisher

availableduringstart-upandadjustment

 

 

 

procedures

and service calls.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

These

instructions

cover

minimum

requirements

and conform

to existing

national

sta nda rds

and

safety

codes.

In some insta

rices,

these

instructions

exceed certain

local codes

and

ordinances,

 

especially

those

that

may

not

have

kept

up

with

changing

residential construction

 

practices.

We requre

these

instructions

as

a

minimum

 

for a safe

installation.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN ASSISTED, DIRECT VENT GAS FURNACE

International

Comfort

Products

Corporation

(USA)

Lewisburg,

TN 37097

 

 

 

Manufactured

by:

 

 

 

Table

of

Contents

 

1. SafeInstallationRequirements

4

7. Ductworkand Filter

34

2. Installation

5

8. Checksand Adjustments

38

3. Combustion& VentilationAir

8

9. FurnaceMaintenance

39

4.Vent& CombustionAirPiping

11

10.Sequenceof Operation& Diagnostics

40

5. GasSupply and Piping

30

11.ConcentricVentTermination

44

6. ElectricalWiring

33

12.TechSupport and Parts

49

FIRE OR EXPLOSION HAZARD

This furnace is not designed for use in mobile homes, trailers or recreational vehicles.

Such use could result in death, bodily injury and/or property damage.

PrintedU.S.A.

LPI

12/03/2002 440 01 1114 (00)

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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.
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