90 Single S tage
Category
IVFurnace
N9MP1 & N9MP2
*9MPD
*Denotes
Brands
(C, H, T)
FAN ASSISTED,
DIRECT
VENT GAS FURNACE
SAFETY
REQUIREMENTS
Recognize
safety
information.
This is the safety-
alert symbolZ.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.
CAuT__Nis
used
t_ identify
unsafe
practices
that c_u_d
resu_t in min_r
pers_na_
injury
_r pr_duct
and pr__erty
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 tothecurrent
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.
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. SafeInstallationRequirements .................
3
2. Installation................................
4
3. Combustion & Ventilation Air ..................
8
4.Vent& CombustionAir Piping ................
10
5. GasSupply and Piping ......................
29
6. Electrical W iring ...........................
33
7. Ductworkand Filter ........................
35
8. Checksand Adjustments....................
38
9. FurnaceMaintenance .......................
40
10.Sequenceof Operation& Diagnostics..........
41
11.Concentric VentTermination.................
45
TechSupport and Parts........................
49
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.
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 inU.S.A.
07/15/2004
440 01 1020 (04)
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