Carrier F80CSU Installation, Start-Up, Operating And Service And Maintenance Instructions

F80CSU and G80CSU
4-Way Multipoise, Ultra Low NOx
Communicating, 80% AFUE Gas Furnace
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.
Approved for installations up to 5,400 feet (1646 meters)
NOTE: Read the entire instruction manual before starting the
installation.
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
CODES AND STANDARDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PROCE-
DURE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
AIR FOR COMBUSTION AND VENTILATION . . . . . . . . . . . . 6
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
UPFLOW INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
HORIZONTAL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . 10
AIR DUCTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
GENERAL REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SUPPLY AIR CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . 11
RETURN AIR CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . 12
GAS PIPING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
ELECTRICAL CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . 14
115-V WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
J-BOX RELOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
NOTES FOR FIGURES 26 - 29 . . . . . . . . . . . . . . . . . . . . . . . . . 17
VENTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
GENERAL VENTING REQUIREMENTS . . . . . . . . . . . . . . . . . . . 18
Exterior Masonry Chimney FAN + NAT
Installations with Type-B Double Wall Vent
Connectors ©FPA & AGA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Venting Notes for Fig. 31
start-up, adjustment, and safety check . . . . . . . . . . . . . . . . . . . . . . . 21
SERVICE AND MAINTENANCE
PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
PARTS REPLACEMENT INFORMATION GUIDE . . . . . . . . . . . 39
Installation, Start-Up, Operating and
Service and Maintenance Instructions
- Fig. 36 . . . . . . . . . . . . . . . . . . . . . . . 21
Portions of the text and tables are reprinted from 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.
WARNING
!
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal injury and/or
death.
Carbon Monoxide (CO) is a colorless, odorless, and tasteless poisonous
gas that can be fatal when inhaled. Follow all installation, maintenance,
and service instructions. See additional information below regarding
the installation of a CO Alarm.
Most states in the USA and jurisdictions in Canada have laws that
require the use of Carbon Monoxide (CO) alarms with fuel burning
products. Examples of fuel burning products are furnaces, boilers, space
heaters, generators, water heaters, stoves/ranges, clothes dryers,
fireplaces, incinerators, automobiles, and other internal combustion
engines. Even if there are no laws in your jurisdiction requiring a CO
Alarm, it's highly recommended that whenever any fuel burning product
is used in or around the home or business that the dwelling be equipped
with a CO Alarm(s). The Consumer Product Safety Commission
recommends the use of CO Alarm(s). The CO Alarm(s) must be
installed, operated, and maintained according to the CO Alarm
manufacturer's instructions. For more information about Carbon
Monoxide, local laws, or to purchase a CO Alarm online, please visit the
following website. https://www.kidde.com.

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.
CAUTION