Sears 9MPD125L20B1 Concentric Termination, Vent Termination Clearances, Led Indicatescheck/Repair

Models: 9MPD100J20B1 N9MP2100J20B1 9MPD050F12B1 N9MP1100J20B1 N9MP1125J20B1 N9MP2050B12B1 9MPD075F12B1 N9MP2100F14B1 N9MP2075B12B1 N9MP1100F14B1 9MPD100J14B1 N9MP1080F16B1 N9MP2080F16B1 N9MP2125J20B1 9MPD080J16B1 N9MP1050B12B1 9MPD125L20B1 N9MP1075B12B1

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HONEYWELL SV9541M "SMART VALVE" Trouble shooting continued

LED

INDICATESCHECK/REPAIR

STATUS

6Flashes +

3Flashes

SoftLockout.

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,

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.

6Flashes +

4Flashes

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,

Main limit switch.

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

Restriction in duct work.

Dirty filter

 

SoftLockout.

 

 

Blowerfailure(typical)

Deadblower.

7 Flashes

 

Limittrip tooklongerthan2 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 EXPLOSION HAZARD

Failure to properly vent this furnace could result in death, personal injury and/or property damage.

Inlet and outlet pipes may NOT be vented directly above each other (standard vent terminals).

1.Determine termination locations based on clearances spe-

cified in following steps and as shown in Figure 7, Figure 45 through Figure 50.

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.

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.

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 Codetakes precedence

over the preceding termination instructions.

Concentric Vent Termination - Kit #

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" di- ameter pipe system. Refer to Table 13 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 in- structions outlined below for vertical or horizontal termination. Ver-

440O1102004

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Sears 9MPD125L20B1 manual Concentric Termination, Vent Termination Clearances, Concentric Vent Termination Kit #, Flashes +

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.