Sears 9MPD125L20B1 User Manual
Sears Kiln
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90+ Single Stage
Category IV Furnace
N9MP1 & N9MP2
*9MPD
* Denotes Brands (C, H, T)
FAN ASSISTED, DIRECT
VENT GAS FURNACE
SAFETY REQUIREMENTS
Recognize safety information. This is the safety-alert s y m b o l . When you see this symbol on the furnace and In instructions 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. CAUTION is used to identify unsafe practices that
could
result
in
minor personal injury or product and property 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) ANSI
Z223.1 -2002/NFPA No. 54-2002. In Canada, refer to the current edition of the National Standard of Canada Natural Gas and Propane Installation
Code (NSCNGPIC) CSA B149.1-00. Wear safety glasses and work gloves. Have fire extinguisher available during start-up and adjustment
procedures and service calls.
These instructions cover minimum requirements and conform to existing national standards and safety codes. In some instances, these instructions
exceed certain local codes and ordinances, especially those that may not have kept up with changing residential construction practices. We require
these instructions as a minimum for a safe installation.
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EFFICIENCY
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INSTALLER: Affix these instructions
on or adjacent to the furnace.
CONSUMER: Retain these
instructions for future reference.
International Comfort Products, LLC
Lewisburg, TN 37091 U.S.A.
Table of Contents
1. Safe Installation Requirements................................... 3
2. Installation..................................................................... 4
3. Combustion & Ventilation Air..................................... 8
4. Vent & Combustion Air Piping ................................. 10
5. Gas Supply and Piping.............................................. 29
6. Electrical Wiring......................................................... 33
A WARNING
ELECTRIC SHOCK HAZARD
Failure to follow safety
warnings exactly could result
in serious injury, death, and/or
property damage.
Turn Off All Power Before
Servicing.
7. Ductwork and Filter ................................................... 35
8. Checks and Adjustments .........................................38
9. Furnace Maintenance ................................................ 40
10. Sequence of Operation & Diagnostics...................41
11. Concentric Vent Termination................................... 45
Tech Support and Parts................................................. 49
A WARNING
CARBON MONOXIDE POISNING AND FIRE
HAZARD.
Failure to follow safety warnings exactly could
result in serious injury, death, and/or property
damage.
This furnace is not designed for use in mobile
homes, trailers or recreational vehicles.
Printed in U.S.A.
07/15/2004
440 01 1020 (04)
Document Outline
- 90+ Single Stage
- Safety Rules
- 2. Installation
- 3. Combustion & Ventilation Air
- For Single Pipe Installation
- CARBON MONOXIDE POISONING HAZARD
- Failure to provide adequate combustion and ventilation air could result in death and/or personal injury.
- Use methods described here to provide combustion and ventilation air.
- Air Openings and Connecting Ducts
- Confined Space Installation
- Requirements
- Unconfined Space Installation
- CARBON MONOXIDE POISONING HAZARD
- Failure to supply additional air by means of ventilation grilles or ducts could result in death and/or personal injury.
- An unconfined space or homes with tight construction may not have adequate air infiltration for proper combustion and ventilation of flue gases.
- Most homes will require additional air.
- Venting and Combustion Air Check
- For Two Pipe Installation
- 4. Vent and Combustion Air Piping
- Single Pipe (N9MP1 Models)
- Direct Vent (N9MP2 Models)
- Dual Certified f9MPD Models)
- Contaminated Combustion Air
- Vent and Combustion Air Piping Guidelines
- Piping Insulation Guidelines
- Sizing Combustion Air and Vent Pipe
- Condensate Drain Trap Freeze Protection
- Figuro 13
- Downflow Right Side Vent and Trap
- Figure 18
- Connecting Tee Trap to Condensate Trap and Main Drain Line
- CARBON MONOXIDE POISONING HAZARD
- Failure to properly seal vent piping could result in death, personal injury and/or property damage.
- Cement or mechanically seal all joints, fittings, etc. to prevent leakage of flue gases.
- Combustion Air Pipe Connection (Dual Certified or Direct Vent)
- Connecting Vent Pipes and Termination
- Horizontal Termination
- Using Exterior Risers
- Vertical Termination
- Vent Termination Shielding
- 5. Gas Supply and Piping
- Alternate BTUH Input Ratings (USA Only)
- Supply Pressure
- Gas Supply Pressure
- Manifold Gas Pressure Adjustment
- MANIFOLD PRESSURE AND ORIFICE SIZE FOR HIGH ALTITUDE APPLICATIONS
- General Derating Rules
- High Altitude Air Pressure Switch
- Changing Orifices for High Altitude
- Natural Gas Input Rating Check
- Gas Piping Requirements
- Additional LP Connection Requirements
- Final Check
- 6. Electrical Wiring
- 7. Ductwork and Filter
- 8. Checks and Adjustments
- Startup
- Manifold Gas Pressure Adjustment
- Adjust Pilot Burner
- Main Burner Flame Check
- Temperature Rise Check
- Changing Blower Speed
- ELECTRICAL SHOCK HAZARD
- Failure to do so could result in death and/or personal injury.
- Turn OFF power to furnace before changing speed taps.
- REDUCED FURNACE LIFE HAZARD
- Failure to properly set the air temperature rise may result in reduced furnace life.
- Use ONLY the following blower motor speed taps for setting air temperature rise.
- Continuous Fan Operation
- Separate speed selections for Heat, Cool, and Continuous Fan
- Heating and Continuous Blower Speed the Same
- 9. Furnace Maintenance
- 10. Sequence of Operation & Diagnostics
- 11. Concentric Termination
- f ©©IfiDiBiMlll i(10[5)[5)®lltl iglM®
- Four Position Furnace
- Model Specifications
- Specifications (N9MP1)
- Specifications (N9MP2)
- Specifications (*9MPD)
- iQ
- Models - N9MP1050B12B1, N9MP1075B12B1, N9MP1080F16B1, N9MP1100F14B1, N9MP1100J20B1 &
- N9MP1125J20B1 - N9MP2050B12B1, N9MP2075B12B1, N9MP2080F16B1, N9MP2100F14B1, N9MP2100J20B1 &
- N9MP2125J20B1 (Natural Gas)
- Replacement part supplied will be current active part. For parts not listed, consult place of purchase.
- Models - N9MP1050B12B1, N9MP1075B12B1, N9MP1080F16B1, N9MP1100F14B1, N9MP1100J20B1 &
- N9MP1125J20B1 - N9MP2050B12B1, N9MP2075B12B1, N9MP2080F16B1, N9MP2100F14B1, N9MP2100J20B1 &
- N9MP2125J20B1 (Natural Gas)
- Replacement part supplied will be current active part. For parts not listed, consult place of purchase.
- Models - N9MP1050B12B1, N9MP1075B12B1, N9MP1080F16B1, N9MP1100F14B1, N9MP1100J20B1 &
- N9MP1125J20B1 - N9MP2050B12B1, N9MP2075B12B1, N9MP2080F16B1, N9MP2100F14B1, N9MP2100J20B1 &
- N9MP2125J20B1 (Natural Gas)
- Replacement part supplied will be current active part. For parts not listed, consult place of purchase.
- Models - N9MP1050B12B1, N9MP1075B12B1, N9MP1080F16B1, N9MP1100F14B1, N9MP1100J20B1 &
- N9MP1125J20B1 - N9MP2050B12B1, N9MP2075B12B1, N9MP2080F16B1, N9MP2100F14B1, N9MP2100J20B1 &
- N9MP2125J20B1 (Natural Gas)
- Replacement part supplied will be current active part. For parts not listed, consult place of purchase.
- Models - *9MPD050F12B1, *9MPD075F12B1, ’9MPD080J16B1, *9MPD100J14B1, *9MPD100J20B1 & *9MPD125L20B1 (Natural Gas) ‘Denotes Brand
- Replacement part supplied will be current active part. For parts not listed, consult place of purchase.
- Models - *9MPD050F12B1, ’9MPD075F12B1, ’9MPD080J16B1, *9MPD100J14B1, *9MPD100J20B1 & *9MPD125L20B1 (Natural Gas) ‘Denotes Brand
- Replacement part supplied will be current active part. For parts not listed, consult place of purchase.
- Models - *9MPD050F12B1, *9MPD075F12B1, ’9MPD080J16B1, *9MPD100J14B1, *9MPD100J20B1 & *9MPD125L20B1 (Natural Gas) ‘Denotes Brand
- Replacement part supplied will be current active part. For parts not listed, consult place of purchase.
- Models - *9MPD050F12B1, *9MPD075F12B1, ’9MPD080J16B1, *9MPD100J14B1, *9MPD100J20B1 & *9MPD125L20B1 (Natural Gas) ‘Denotes Brand
- Replacement part supplied will be current active part. For parts not listed, consult place of purchase.
- Model Specifications
- Four Position Furnace