International Comfort Products N8MSN0451408A1, N8MSL0451408A1, N8MSN0451412A1, N8MSL0451412A1, N8MSN0701408A1 User Manual
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PARTS MANUAL
Gas Furnace
N8MSN, N8MSL
Safety Labeling and Signal Words
DANGER, WARNING, CAUTION, and
NOTE
The signal words DANGER, WARNING,
CAUTION, and NOTE are used to identify levels of
hazard seriousness. The signal word DANGER is
only used on product labels to signify an immediate
hazard. The signal words WARNING, CAUTION,
and NOTE will be used on product labels and
throughout this manual and other manuals that may
apply to the product.
DANGER − Immediate hazards which will result in
severe personal injury or death.
WARNING − Hazards or unsafe practices which
could result in severe personal injury or death.
CAUTION − Hazards or unsafe practices which
may result in minor personal injury or product or
property damage.
NOTE − Used to highlight suggestions which will
result in enhanced installation, reliability, or
operation.
Signal Words in Manuals
The signal word WARNING is used throughout this
manual in the following manner:
!
The signal word CAUTION is used throughout this
manual in the following manner:
!
Signal Words on Product Labeling
Signal words are used in combination with colors
and/or pictures on product labels.
WARNING
WARNING
CAUTION
TABLE OF CONTENTS
MODEL NUMBER IDENTIFICATION GUIDE 2........
PARTS DIAGRAM 3..............................
PARTS LIST 5..................................
MODELS
N8MSN0451408A1 N8MSL0451408A1..............
N8MSN0451412A1 N8MSL0451412A1..............
N8MSN0701408A1 N8MSL0701408A1..............
N8MSN0701412A1 N8MSL0701412A1..............
N8MSN0701716A1 N8MSL0701716A1..............
N8MSN0901714A1 N8MSL0901714A1..............
N8MSN0902116A1 N8MSL0902116A1..............
N8MSN0902120A1 N8MSL0902120A1..............
N8MSN1101712A1 N8MSL1101712A1..............
N8MSN1102116A1 N8MSL1102116A1..............
N8MSN1102122A1 N8MSL1102122A1..............
N8MSN1352116A1 N8MSL1352116A1..............
N8MSN1352422A1 N8MSL1352422A1..............
N8MSN1552420A1 N8MSL1552420A1..............
!
ELECTRICAL SHOCK HAZARD
Failure to turn off electric power could result in
personal injury or death.
Before installing or servicing system, turn off
main power to the system. There may be more than
one disconnect switch, including accessory
heater(s).
Use of the AHRI Certified TM Mark indicates
a manufacturer’s participation in the program.
For verification of certification for individual
products, go to www.ahridirectory.org .
WARNING
441 03 1402 00 Nov. 2012
PARTS MANUAL Gas Furnace: N8MSN, N8MSL
MODEL NUMBER IDENTIFICATION GUIDE
DIGIT POSITION 1 2 3 4 5 6,7,8 9,10 11,12 13 14
N 8 M S L 045 14 12 A 1
N = Entry
8 = 80% AFUE EFFICIENCY
M = Multiposition POSITION
V = Variable Speed Blower Motor − ECM
X = ECM Blower Motor
S = Single−stage
T = Two−stage TYPE
N = Standard
L = Low NOx FEATURE
045 = 44,000 BTU/hr
070 = 66,000 BTU/hr
090 = 88,000 BTU/hr
110 = 110,000 BTU/hr
135 = 132,000 BTU/hr
155 = 154,000 BTU/hr HEAT INPUT
14 = 14−3/16”
17 = 17−1/2”
21 = 21”
24 = 24−1/2” CABINET WIDTH
08 = 800 CFM
12 = 1200 CFM
14 = 1400 CFM
16 = 1600 CFM
20 = 2000 CFM
22 = 2200 CFM NOMINAL MAXIMUM COOLING AIRFLOW @ .5 IN. W.C.
SALES (MAJOR) REVISION DIGIT
ENGINEERING (MINOR) REVISION DIGIT
ECM-Electronically Commutated Motor
ACCESSORIES PART NUMBER IDENTIFICATION GUIDE
DIGIT POSITION
1 2 3 4 5, 6, 7 8, 9 10, 11
N A H A 001 01 DH
N = Non−Branded BRANDING
A = Accessory PRODUCT GROUP
H = Heating KIT USAGE
A = Original
B = 2nd Generation MAJOR SERIES
Product Identifier Number
Package Quantity
Type of Kit (Example: DH = Draft Hood − Chimney Adapter)
2 441 03 1402 00
PARTS MANUAL Gas Furnace: N8MSN, N8MSL
PARTS DIAGRAM
NOTE: This illustration is for
reference only. Your unit may
differ in appearance or may not
include all components shown.
A
2
BB
AA
1
27 28
CC
M
9
18
X
Z
17
L
LL
21
D
20
DD
E
B
C
N
K
7
G
3
8
VV
6
EE
J
H
5
HH
FF
19
441 03 1402 00 3
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