90+SingleStageN9MP1&N9MP2
*9MPD *Denotes Brands (C, H, T)
FAN ASSISTED,
CategoryIVFurnaceo,. czw.z FURNACE
See section 4 for Cateqory IV definition.
SAFETY REQUIREMENTS
This furnace ca n be installed as a direct vent furnace using outside air for combustion or the furnace ca n use air from inside the structure for combustion.
The INLET air pipe is optional. If combustion air comes from inside the structure, adequate make up air MUST be provided to compensate for oxygen
burned. See the Indoor Combustion Airsection in the Combustion and Ventilation Aircha pter. If combustion air is drawn from outside the structure, it
MUST be taken from the same atmospheric pressure zone as the vent pipe.
Recognize safety information. This is the safety- alert symbolZ_. When you see this symbol on the furnace and in instructions manuals be alert to the
3otential for personal injury.
Jnderstand the signal words DANGER. WARNING. or CAUTION. These words are used with the safety-alert symbol. DANGERidentifies 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/N FPA 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 safetyglassesandworkgloves. Havefireextinguisher availableduringstart-upand 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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International Comfort Products, LLC
Lewisburg, TN 37097 U.S.A.
Table of Contents
INSTALLER: Affix these instructions
on or adjacent to the furnace.
CONSUMER: Retain these
instructions for future reference.
1.SafeInstallationRequirements................... 3
2.Installation .................................. 4
3.Combustion & Ventilation Air .................... 8
4.Vent &Combustion Air Piping ................... 12
5.GasSupplyand Piping ........................ 30
6.ElectricalWiring ............................. 34
7.DuctworkandFilter ........................ 36
8. ChecksandAdjustments .................... 39
9.FurnaceMaintenance ....................... 41
10.SequenceofOperation& Diagnostics.......... 42
11.ConcentricVentTermination................. 46
TechSupportand Parts........................ 51
CARBON MONOXIDE POISONING 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.
PrintedinU.S.A. 10/19/2004 440 01 1020 (05)
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