Nordyne FG7SA-045C-23A User Manual

GAS FURNACES Single Stage, Two-Stage, and Modulating Furnaces
*SK/*TK Downflow
95.1% AFUE Condensing Furnaces
*TC Upflow/Horizontal
*TL Downfiow
_SL Downflow
97%+ AFUE Modulating Furnaces
*MQ Upflow/Horizontal
FiRE OR EXPLOSION HAZARD
= Failure to follow safety warnings e×actly
could result in serious injury or property
damage.
= Installation and service must be performed
by a qualified installer, service agency or
the gas supplier.
= Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
= DO not try to light any appliance.
= Do not touch any electrical switch; do not
use any phone in your building.
= Leave the building immediately.
= Immediately call your gas supplier from a
neighbors phone. Follow the gas suppliers
instructions.
= if you cannot reach your gas supplier, call
the fire department.
_'_92.1%, 95.1% and 97%+ AFUE Models Only

Nordyne FG7SA-045C-23A Specifications

General

Brand	Nordyne
Model Number	FG7SA-045C-23A
Category	Furnace
Fuel Type	Natural Gas
Input BTU/h	45000
Output BTU/h	36000
Efficiency	80%
Blower Type	Multi-Speed
Voltage	115V
Maximum External Static Pressure	0.5 in. W.C.
Gas Connection Size	1/2 inch

Summary

General Safety Warnings

Fire and Explosion Hazards

Crucial warnings regarding fire and explosion risks, emphasizing safe installation and storage practices.

Gas Leak Safety Procedures

Instructions on immediate actions to take upon smelling gas to prevent severe consequences.

Safety Information and Precautions

General Safety Guidelines

Key safety information for furnace installation, service, and operation to prevent injury or death.

Combustion Air and Clearances

Importance of unobstructed airflow for combustion and maintaining safe clearances from combustibles.

Specific Hazard Warnings

Warnings related to Proposition 65, mobile home installation, flood damage, and air filter usage.

Gas Supply and Operation

Gas Supply and Piping Safety

Guidelines for safe gas supply and piping installation, emphasizing professional compliance and avoiding DIY modifications.

LP Gas Conversion Warning

Crucial warning about needing a licensed technician for LP gas conversion to prevent hazards.

Furnace Inspection and Venting

Requirements for annual inspection of the furnace and its venting system for safe operation.

Shutting Down the Furnace

Step-by-step procedure for safely shutting down the furnace for maintenance or service.

Component Information and Requirements

Furnace Component Identification

Overview of furnace components, highlighting the gas valve as the primary user interface.

Venting System Classifications

Explanation of Category I and Category IV furnace venting systems based on AFUE rating and condensate.

Thermostat Compatibility

Guidance on selecting the correct thermostat for single-stage, two-stage, and modulating furnaces.

Combustion Air Requirements

Critical importance of adequate and clean combustion air to prevent dangerous carbon monoxide.

Startup, Shutdown, and Inspection

Furnace Startup Steps

Detailed instructions for safely starting the furnace, including filter, vent, and gas valve checks.

Furnace Shutdown Steps

Procedure for safely shutting down the furnace for service or maintenance by turning off gas and electric.

Inspection Frequency and Items

Recommendations for annual HVAC technician inspections and monthly filter checks for furnace maintenance.

Maintenance and Troubleshooting

Furnace Maintenance Schedule

Table outlining recommended inspection and maintenance tasks for the furnace throughout the year.

Burner Operation and Flame

Guidance on observing burner operation and flame characteristics for proper furnace function.

New Construction Considerations

Safety inspections and checks required for furnaces installed in new construction environments.

Furnace and Air Duct Inspection

Homeowner checks for furnace deterioration, ductwork security, and connections.

Troubleshooting Common Issues

Steps to check for common furnace operational problems before contacting a technician.

Single-Stage Furnace Components

SA/SK 80+ Upflow/Horizontal

Diagram and component list for the SA/SK 80+ Upflow/Horizontal Gas Furnace.

SK 80+ Downflow Gas Furnace

Diagram and component list for the SK 80+ Downflow Gas Furnace.

SC 92.1% Upflow/Horizontal

Diagram and component list for the SC 92.1% Upflow/Horizontal Gas Furnace.

SL 92.1% Downflow Gas Furnace

Diagram and component list for the SL 92.1% Downflow Gas Furnace.

Two-Stage Furnace Components

TA 80+ Upflow/Horizontal

Diagram and component list for the TA 80+ Upflow/Horizontal Gas Furnace.

TK 80+ Downflow Gas Furnace

Diagram and component list for the TK 80+ Downflow Gas Furnace.

TC 95.1% Upflow/Horizontal

Diagram and component list for the TC 95.1% Upflow/Horizontal Gas Furnace.

TL 95.1% Downflow Gas Furnace

Diagram and component list for the TL 95.1% Downflow Gas Furnace.

Modulating Furnace Components

MQ 97%+ Upflow/Horizontal

Diagram and component list for the MQ 97%+ Upflow/Horizontal Gas Furnace.