Sears N9MP1, N9MP2, 9MPD manual Frozen Water Pipe Hazard, Frozen and Burst Water Pipe Hazard

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1.Safe Installation Requirements

Installation or repairs made by unqualified persons can

result in hazards to you and others. Installation MUST

conform with local codes or, in the absence of local

codes, with codes of all governmental authorities havingjurisdiction.

The

information

 

contained

in this

manual is

intended

for

use

by

a

qualified

service

technician

who

is

experienced

 

in

such

work,

who

is

familiar

with

all

precautions

 

and

safety

procedures

required

in such

work

and

is

equipped

with

the proper

tools

and

test

instruments.

Failure to carefully read and follow all instructions in

this manual can result in furnace malfunction, death,

personal injury and/or property damage.

NOTE: This furnace is design certified by the Canadian Stan-

dards Association (CSA) for installation in the United States and Canada. Refer to the appropriate codes, along with Figure 1 or Figure 2 and this manual, for proper installation.

Use only the Type of gas approved for this furnace (see Rating Plate on unit). Overfiring will result in failure of

heat exchanger and cause dangerous operation. (Fur- naces can be converted to L.E gas with approved kit.)

Install this furnace only in a location and position as speci-

fied in "lnstallation"pg 5 of these instructions.

Provide adequate combustion and ventilation air to the

furnace as specified in "Combustion and Ventilation Air" on pg 8 of these instructions.

Combustion products must be discharged outdoors. Con- nect this furnace to an approved vent system only, as spe-

cified in "Combustion and Ventilation Air"on pg 8 of these instructions.

Never test for gas leaks with an open flame. Use a com- mercially available soap solution made specifically for the

detection of leaks to check all connections, as specified in

"Gas Supply and Piping"on pg 32 of these instructions.

Always install furnace to operate within the furnace's in-

tended temperature-rise range with a duct system which has an external static pressure within the allowable rat- ings, as specified in "Technical Support Specifications" pgs 49 - 51 of these instructions.

When a furnace is installed so that supply ducts carry air circulated by the furnace to areas outside the space con- taining the furnace, the return air shall also be handled by duct(s) sealed to the furnace casing and terminating out- side the space containing the furnace.

A gas-fired furnace for installation in a residential garage

must be installed as specified in "Installation Require- ments"pg 7 of these instructions.

This furnace is not to be used for temporary heating of buildings or structures under construction.

This furnace is NOT approved for installation in mo-

bile homes, trailers or recreation vehicles.

Seal around supply and return air ducts.

Install correct filter type and size.

Unit MUST be installed so electrical components are pro- tected from direct contact with water.

NOTE: It is the personal responsibility and obligation of the end user to contact a qualifted installer to ensure that the installation is adequate and conforms to governing codes and ordinances.

Safety Rules

Your unit is built to provide many years of safe and dependable service provided it is properly installed and maintained. However, abuse and/or improper use can shorten the life of the unit and create hazards for you, the owner.

A. The U.S. Consumer Product Safety Commission recom-

mends that users of gas-burning appliances install carbon monoxide detectors. There can be various sources of car-

bon monoxide in a building or dwelling. The sources could

be gas-fired clothes dryers, gas cooking stoves, water

heaters, furnaces, gas-fired fireplaces, wood fireplaces, and several other items. Carbon monoxide can cause seri-

ous bodily injury and/or death. Therefore, to help alert people of potentially dangerous carbon monoxide levels, you should have carbon monoxide detectors listed by a na-

tionally recognized agency (e.g. Underwriters Laborato-

ries or CSA International) installed and maintained in the building or dwelling (see Note below).

Carbon monoxide or "CO" is a colorless and odorless gas produced when fuel is not burned completely or when the flame does not receive sufficient oxygen.

B.There can be numerous sources of fire or smoke in a build-

ing or dwelling. Fire or smoke can cause serious bodily inju- ry, death, and/or property damage. Therefore, in order to

alert people of potentially dangerous fire or smoke, you should have fire and smoke detectors listed by Underwrit- ers Laboratories installed and maintained in the building or dwelling (see Note below).

Note: The manufacturer of your furnace does not test any de-

tectors and makes no representations regarding any brand or type of detector.

C.To ensure safe and efficient operation of your unit, you should do the the following:

1.Thoroughly read this manual and labels on the unit. This will help you understand how your unit operates and the hazards involved with gas and electricity.

2.Do not use this unit if any part has been under water.

Immediately call a qualified service technician to inspect the unit and to replace any part of the control system and any gas control which has been under water.

3.Never obstruct the vent grilles, or any ducts that pro- vide air to the unit. Air must be provided for proper com- bustion and ventilation of flue gases.

Frozen Water Pipe Hazard

FROZEN AND BURST WATER PIPE HAZARD

Furnace may shut down. Do not leave your home

unattended for long periods during freezing weather

without turning off water supply and draining water

pipes or otherwise protecting against the risk of frozen pipes.

Failure to do so may result in burst water pipes, serious

property damage and/or personal injury.

Your furnace is designed solely to provide a safe and comfortable

living environment. The furnace is NOT designed to ensure that water pipes will not freeze. It is equipped with several safety de- vices that are designed to turn the furnace off and prevent it from restarting in the event of various potentially unsafe conditions.

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Contents SingleStage Denotes Brand MP D 0 75 F 12 a #JellJill 440 01 1114Date of Start-Up Furnace/Drip- Leg? YESCO2 ? Frozen Water Pipe Hazard Frozen and Burst Water Pipe HazardInstallation Typical Upflow InstallationLocation and Clearances Winter ShutdownInstallation Requirements Installation PositionsFurnace Installation Considerations LevelingDimensions & Clearances VENTrgMPDAiRI.TAKE TOPCombustion & Ventilation Air For Single Pipe Installation Air Openings and ConnectingDuctsHorizontal Furnace Installation Confined Space Installation RequirementsEhr Unconfined Space InstallationFree Area Venting and Combustion Air Check Vent CheckMake the Following Check HoodVent and Combustion Air Piping Single Pipe N9MP1 ModelsDirect Vent N9MP2 Models Dual Certified gMPDModelsPiping Insulation Guidelines Sizing Combustion Air and Vent PipePipe Diameter Table N9MP2 Models Vent Termination ClearancesCondensate Drain Trap Condensate Drain Trap Freeze ProtectionUnited States Only Canada See Canadian Fuel Gas Code OtherThanUpflow Installations Dual Certified *9MPD-A4 Models YellowPlasticCapDrainLine TransitionMountingScrews4 SomemodelsDrain HorizontalLeft Installations Dual Certified *9MPD-A4Models 25-24-12Switch Hose Si.g.Pre...reSwitchRpeept.oT \ e.spre X3L/\Page ReturnAir Page Left Side Venting Drainstubonthetransitionandsecurewitha3/4clamp Satetrapandsecurewitha3/4clamp Boxandsecurewitha3/4clampStubonthecondensatetrapandsecurewitha3/4clamp Inlet VentFitting TPipe & ClampsReturn Air Modelsshownhave Twopressureswitches CapReturn Air ClampsLeft Connecting Vent and Combustion Air Piping Combustion Air Pipe Connection Dual Certified orVent Pipe Connection PVCHorizontal Termination Proper Sealing Procedure for Combustion BlowerVent Pipe Using Exterior Risers Checkholesizesbymakingsureitissmallerthan the couVertical Termination Vent Termination ShieldingEi271Recommended Alternate Installation for Sustained Cold Concentric Vent and Combustion Air Sidewall TerminationSidewall Inlet Vent and Exhaust Air Termination Rooftop Inlet Vent and Exhaust Air TerminationManifold Gas Pressure Adjustment Alternate Btuh Input RatingsUSA OnlySupplyPressure Gas Supply PressureHigh Altitude Air Pressure Switch Changing Orifices for High AltitudeGeneral Derating Rules Changing OrificesTypical Gas Piping for Upflow Natural Gas Input Rating CheckExample Electrical Wiring Power SupplyWiringHumidifier/Electronic Air Cleaner Gas Piping RequirementsInstallation Fan Delay DIP Switch SettingsFan Timer Connections Ductwork and FilterFilter Installation using Optional Filter Rack SizingInsulation FiltersCombustible Floor Installation Availablefromyourdistributor StandoffFilterRackAddition Of Air Conditioning Ubbase for Combustible FloorFurnace Subbase Coil CabinetChecks and Adjustments Adjust Pilot BurnerTemperature Rise Check Main Burner Flame CheckTochecktemperaturerise,usethefollowingprocedure Heating and Continuous BlowerSpeed the SameChanging Blower Speed Continuous Fan OperationGas Valve Diagnostic Codes See Figure Circulating Fan G RequestHeating Request with Gas Supply Line Shut Off OFFTypical Gas Valve Honeywell Honeywell SV9541M Honeywell SV9541M Smart Valve Trouble shooting FlashesFlashes + Flashes + SoftLockoutVent Termination Clearances Concentric TerminationConcentric Vent Termination Kit # Arerequiredtocompletetheinstallation Concentric Vent Roof InstallationConcentric Termination Kit NAHA001CV & NAHA002CV Venting Rain Cap to Vent Pipe AssemblyConcentric Vent and Combustion Air Side Termination Concentric Vent Sidewall Attachment 25-22-02440011114O0 N9MP2075B12A4 N9MP2080F16A4 N9MP2100F14A4 N9MP2100J20A4 N9MP2125J20A4Save This Manual For Future Reference Denotes BrandSpecifications N9MP1 GeneralSpecifications N9MP2 Snap HW HSP HwhspNAHA001LV NAHAO01LV NAHA002LV PSC/I/2 PSC/II23OO Specifications 9MPDNAHA00SLV For 075 Models 3 Ton Units For 100 Models Ton 19 & 22314 UnitsFor 100 Models 5 Ton 223/4 Units For 125 Models 5 Ton UnitsConnection Diagram Disconnect Before Servicing Ladder DiagramD22 = = =@O,c25-23-95 FF18Key Description Part Functional125J 100J 125JO50B 075B 080F LOOF LOOJ 125J IoofLOOJ 125J Non-Functional Number 12A 1GAKeyDescription No. Non-Functional NgMP1 050B 075B 080F 100F 100J 125J Number100F 100J 16A 14A 20AKeyDescription No.Functional Heat Exchanger,Primary Heat Exchanger,SecondaryGMPD Number 050F12AKeyDescription No.Non- Functional Models *9MPDO50F12A4, Natural Gas Replacement part supplied 080J16ANon-Functional Key DescriptionNon- 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.