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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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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)

Table of contents