Carrier N80ESN Series User Manual

441 01 3400 02 7/12/2019
INSTALL
A
TION INSTRUCTIONS
80% Single Stage, ECM Motor
Category I, Non--Condensing 33--1/3 in. Gas Furnace
N80ESN and N80ESL
(
Series
A)
SAFETY CONSIDERATIONS 2.......................
INTRODUCTION
2.................................
CODES AND STANDARDS
4.........................
S
AFETY 4.......................................
G
ENERAL INSTALLATION 4...........................
C
OMBUSTION AND VENTILATION AIR 4.................
D
UCT SYSTEMS 5.................................
A
COUSTICAL LINING AND FIBROUS GLASS DUCT 5........
G
AS PIPING AND GAS PIPE PRESSURE TESTING 5..........
E
LECTRICAL CONNECTIONS 5........................
V
ENTING 5......................................
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS
PROCEDURE
5....................................
LOCATION
6......................................
AIR FOR COMBUSTION AND VENTILATION
7.........
O
UTDOOR COMBUSTION AIR METHOD 8................
C
OMBINATION OF INDOOR AND OUTDOOR AIR 8...........
INSTALLATION
9..................................
UPFLOW INSTALLATION 10............................
DOWNFLOW INSTALLATION 10.........................
HORIZONTAL INSTALLATION 12.........................
FURNACE SUPPORT 12...............................
AIR DUCTS 12.....................................
GAS PIPING 15.....................................
ELECTRICAL CONNECTIONS 19.........................
115--V WIRING 19...................................
J--BOX RELOCATION 19...............................
24--V WIRING 20....................................
ACCESSORIES 20...................................
VENTING
23.......................................
GENERAL VENTING REQUIREMENTS 23...................
MASONRY CHIMNEY REQUIREMENTS 23..................
APPLIANCE APPLICATION REQUIREMENTS 24...............
ADDITIONAL VENTING REQUIREMENTS 26.................
SIDEWALL VENTING 26...............................
START--UP, ADJUSTMENT, AND SAFETY CHECK
30.....
START--UP PROCEDURES 30............................
ADJUSTMENTS 31..................................
CHECK SAFETY CONTROLS 33..........................
CHECKLIST 33.....................................
SERVICE AND MAINTENANCE PROCEDURES
38.......
INTRODUCTION 38..................................
GENERAL 38......................................
ELECTRICAL CONTROLS AND WIRING 38..................
CARE AND MAINTENANCE 39..........................
CLEANING AND/OR REPLACING AIR FILTER 40..............
BLOWER MOTOR AND WHEEL 40........................
CLEANING HEAT EXCHANGER 41........................
SEQUENCE OF OPERATION 43..........................
WIRING DIAGRAMS 44...............................
TROUBLESHOOTING 45...............................
PARTS REPLACEMENT INFORMATION GUIDE
47.......
NOTE: Read the entire instruction manual before starting the
installation.
Portions of the text and tables are reprinted from current edition
of NFPA 54/ANSI Z223.1E, with permission of National Fire
Protection Association, Quincy, MA 02269 and American Gas
Association, Washington DC 20001. This reprinted material is
not the complete and official position of the NFPA or ANSI on
the referenced subject, which is represented only by the standard
in its entirety.
SAFETY CONSIDERATIONS
FIRE, EXPLOSION, ELECTRICAL SHOCK, AND
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in dangerous
operation, serious injury, death, or property damage.
Improper installation, adjustment, alteration, service,
maintenance, or use could cause carbon monoxide
poisoning, explosion, fire, electrical shock, or other
conditions which may cause personal injury or property
damage. Consult a qualified service agency, local gas
supplier, or your distributor or branch for information or
assistance. The qualified service agency must use only
factory--authorized and listed kits or accessories when
modifying this product.
!
WARNING
FURNACE RELIABILITY HAZARD
Improper installation or misapplication of furnace may
require excessive servicing or cause premature component
failure.
Application of this furnace should be indoors with special
attention given to vent sizing and material, gas input rate,
air temperature rise, unit leveling, and unit sizing.
CAUTION
!
Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical shock, or
other conditions which may cause death, personal injury, or

Carrier N80ESN Series Specifications

General

Model	N80ESN Series
Efficiency Rating	Up to 80% AFUE
Ignition Type	Hot Surface Ignition
Stages	Single-Stage
Heat Exchanger Material	Aluminized Steel
Fuel Type	Natural Gas
Dimensions (H x W x D)	Varies by model
Weight	Varies by model

Summary

Safety Considerations

General Installation Safety

General safety guidelines for furnace installation procedures.

Electrostatic Discharge (ESD) Precautions

Procedure to prevent damage to electronic controls from static discharge.

Codes and Standards

Design Standards

Standards and codes related to furnace design aspects.

Safety Standards

Safety codes and standards applicable to furnace installation.

Installation Procedures

Location Requirements

Guidelines for selecting the appropriate installation location for the furnace.

Air for Combustion and Ventilation

Requirements for providing adequate air for combustion and ventilation.

Furnace Installation Steps

Detailed steps for installing the furnace in various configurations.

Gas Piping Installation

Instructions and safety precautions for gas piping installation.

Electrical Connections

Procedures for making electrical connections to the furnace.

Venting Requirements

Requirements and procedures for properly venting the furnace.

Start-Up, Adjustment, and Safety Check

Procedures for initial start-up, adjustments, and safety checks.

Service and Maintenance Procedures

General Service Information

General guidance for furnace service and maintenance.

Electrical Controls and Wiring Maintenance

Maintenance and troubleshooting for electrical controls and wiring.

Care and Maintenance

Routine care and maintenance tasks for the furnace.

Blower Motor and Wheel Maintenance

Maintenance procedures for the blower motor and wheel.

Cleaning the Heat Exchanger

Procedures for cleaning the furnace heat exchanger.

Sequence of Operation

Detailed explanation of the furnace's operational sequences.

Wiring Diagrams

Diagrams illustrating the furnace's electrical wiring.

Troubleshooting Guide

Guide to diagnosing and resolving furnace operational issues.

Parts Replacement Information

Information on identifying and obtaining replacement parts.