ICP N9MSE1402420A - User Manual

Printed in U.S.A. 440 04 4402 03 12/5/2013
SERVICE AND TECHNICAL
SUPPORT MANUAL
Single Stage, PSC Blower Motor
35” Tall, High Efficiency Condensing Gas Furnace
N9MSE (A Series)
Save this manual for future reference.
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 manual 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.
!
WARNING
Signal Words in Manuals
The signal word CAUTION is used throughout
this manual in the following manner:
!
CAUTION
Signal Words on Product Labeling
Signal words are used in combination with
colors and/or pictures or product labels.
The signal word WARNING is used throughout
this manual in the following manner:
Safety−alert symbol
When you see this symbol on the unit and in
instructions or manuals, be alert to the
potential for personal injury.
TABLE OF CONTENTS
START−UP, ADJUSTMENT, AND SAFETY CHECK 4...........
PRIME CONDENSATE TRAP WITH WATER 4.................
PURGE GAS LINES 4......................................
ADJUST TEMPERATURE RISE 10............................
ADJUST BLOWER OFF DELAY (HEAT MODE) 11..............
ADJUST COOLING AIRFLOW 11.............................
ADJUST THERMOSTAT HEAT ANTICIPATOR 11...............
CHECK SAFETY CONTROLS 11.............................
CHECKLIST 12.............................................
SERVICE AND MAINTENANCE PROCEDURES 13.............
RETRIEVING STORED FAULT CODES 14.....................
COMPONENT SELF−TEST 14...............................
CARE AND MAINTENANCE 15...............................
CLEANING AND/OR REPLACING AIR FILTER 15..............
BLOWER MOTOR AND WHEEL MAINTENANCE 15............
CLEANING BURNERS AND FLAME SENSOR 17...............
SERVICING HOT SURFACE IGNITER 18......................
FLUSHING COLLECTOR BOX AND DRAINAGE SYSTEM 18....
CLEANING CONDENSATE DRAIN AND TRAP 19..............
CLEANING HEAT EXCHANGERS 19..........................
WINTERIZATION 20........................................
SERVICE LABEL 21.........................................
WIRING DIAGRAM 22.......................................
TROUBLESHOOTING − FLOW CHART 23....................
SEQUENCE OF OPERATION 25.............................
PARTS REPLACEMENT INFORMATION GUIDE 26............
PRODUCT NOMENCLATURE 27.............................
MODELS
N9MSE0401410A
N9MSE0401712A
N9MSE0601410A
N9MSE0601714A
N9MSE0801716A
N9MSE0802120A
N9MSE1002114A
N9MSE1002120A
N9MSE1202420A
N9MSE1402420A
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 .

Summary

Safety Labeling and Signal Words

Signal Words in Manuals

Explains signal words DANGER, WARNING, CAUTION, NOTE used in manuals and on product labels.

SAFETY CONSIDERATIONS

Personal Injury and Property Damage Hazards

Details hazards related to improper installation, adjustment, alteration, service, maintenance, or use.

Electrical Shock Hazard

Warns about electrical shock hazards during service or maintenance operations.

Carbon Monoxide Poisoning and Fire Hazard

Highlights hazards of carbon monoxide poisoning and fire, and furnace use in mobile homes.

START-UP, ADJUSTMENT, AND SAFETY CHECK

General Setup Procedures

Gas Pressure and Input Rate Adjustments

Temperature Rise and Airflow Adjustments

Safety Control Checks

SERVICE AND MAINTENANCE PROCEDURES

Troubleshooting and Fault Code Retrieval

Guidance on troubleshooting, using the service label, and retrieving stored fault codes.

Component Self-Test Procedure

Steps for performing a component self-test to diagnose system operations.

Care and Maintenance Tasks

Burner and Flame Sensor Cleaning

Heat Exchanger Cleaning

Furnace Status and Diagnostics

LED Status Codes Explained

Explanation of LED status codes for diagnosing furnace control issues.

Component Self-Test Procedure

Procedure for running a component self-test to diagnose system operations.

Troubleshooting Guide - Flow Chart

ICP N9MSE1402420A Specifications

General

Product Name	N9MSE1402420A
Manufacturer	ICP
Category	Furnace
Fuel Type	Natural Gas
AFUE Rating	95%
Blower Type	Multi-Speed
Ignition Type	Hot Surface Ignition
Warranty	10-Year Parts Limited Warranty
Stages	Single Stage
Vent Type	Direct Vent (2-pipe)