Sears 9MPD Concentric Termination, Vent Termination Clearances, Concentric Vent Termination Kit #

Page 44

HONEYWELL SV9541M "SMART VALVE" Trouble shooting continued

LED

INDICATESCHECK/REPAIR

STATUS

6Flashes +

3Flashes

6Flashes +

4Flashes

Soft Lockout.

Last failure was pressure switch

Maximum recycle count exceeded

Combustion air blower is de-energized, Circulating blower is de-

energized after the "OFF" delay.

After 5-minute delay time, control system will reset and initiate a

new ignition sequence,

Soft Lockout.

Last failure was limit circuit opened during run.

Combustion air blower is de-energized, Circulating blower is

de-energized after the "OFF" delay.

After 5-minute delay time, control system will reset and initiate a

new ignition sequence,

Soft Lockout.

Ignition system control switch must be in the ON position. Pressure switches operation, tubing, and wiring. Restrictions in furnace air intake or vent piping.

High winds blowing against vent.

Main limit switch.

Limit and rollout switch wiring is in good condition and securely connected.

Restriction in duct work.

Dirty filter

 

Blowerfailure(typical)

Deadblower.

7 Flashes

 

Limittriptooklongerthan2 minutesto reset.

Blockedductwork.

 

 

System will start a new ignition sequence after 1 hour, if call for

 

 

heat still present.

 

11. Concentric Termination

Vent Termination Clearances

CARBON MONOXIDE POISONING, FIRE AND EXPLO- SION HAZARD

Failure to properly vent this furnace can result in

death, personal injury and/or property damage.

Inlet and outlet pipes may NOT be vented directly

above each other (standard vent terminals).

4.The vent termination shall be located at least 4'horizontally from any electric meter, gas meter, gas regulator, and any

relief equipment. These distances apply ONLY to U.S. installations.

5.The vent termination is to be located at least 3' above any forced air inlet located within 10' ; and at least 10' from a

combustion air intake of another appliance, except another direct vent furnace intake.

6.In Canada, the Canadian Fuel Gas Code takes prece- dence over the preceding termination instructions.

Concentric Vent Termination - Kit #

1.Determine termination locations based on clearances spe-

cified in following steps and as shown in Figure 7, Figure 44 through Figure 49.

2.The vent termination must be located at least 12" above

ground or normally expected snow accumulation levels.

3.Do NOT terminate over public walkways. Avoid areas

where condensate may cause problems such as above planters, patios, or adjacent to windows where steam may cause fogging.

NAHA001CV & NAHA002CV

These kits are for vertical or horizontal termination of the combus- tion air inlet and the exhaust vent pipes on Category IV gas-fired condensing furnaces. The NAHAO01CV kit can be used for 3" di- ameter pipe systems. The NAHAOO2CV kit can be used for 2" diameter pipe system. Refer to Table 10 for the correct pipe size for the furnace. Both the combustion air inlet and the exhaust vent pipes must attach to the termination kit. The termination kit must

terminate outside the structure and must be installed per the instructions outlined below for vertical or horizontal termination.

[_

440 01 111400

Page 43 Page 45
Image 44
Page 43 Page 45
Contents SingleStage Denotes Brand MP D 0 75 F 12 a #JellJill 440 01 1114CO2 ? Furnace/Drip- Leg? YESDate of Start-Up 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 RequirementsFree Area Unconfined Space InstallationEhr 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 TransitionDrain SomemodelsMountingScrews4 HorizontalLeft Installations Dual Certified *9MPD-A4Models 25-24-12Switch Hose Si.g.Pre...reSwitchRpeept.oT \ e.spre X3L/\Page ReturnAir Page Left Side Venting Stubonthecondensatetrapandsecurewitha3/4clamp Satetrapandsecurewitha3/4clamp Boxandsecurewitha3/4clampDrainstubonthetransitionandsecurewitha3/4clamp Return Air VentFitting TPipe & ClampsInlet Modelsshownhave Twopressureswitches CapReturn Air ClampsLeft Connecting Vent and Combustion Air Piping Combustion Air Pipe Connection Dual Certified orVent Pipe Connection PVCVent Pipe Proper Sealing Procedure for Combustion BlowerHorizontal Termination 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 OrificesExample Natural Gas Input Rating CheckTypical Gas Piping for Upflow 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 + SoftLockoutConcentric Vent Termination Kit # Concentric TerminationVent Termination Clearances Arerequiredtocompletetheinstallation Concentric Vent Roof InstallationConcentric Vent and Combustion Air Side Termination Rain Cap to Vent Pipe AssemblyConcentric Termination Kit NAHA001CV & NAHA002CV Venting 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/II2NAHA00SLV Specifications 9MPD3OO 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.
Top Page Image Contents