Lennox EL297UHV Series User Manual

©
2023 Lennox Industries Inc.
Dallas, Texas, USA
508360-01
05/2023
EL297UHV
SERIES
GAS FURNACE
WARNING
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer or
equivalent, service agency, or the gas supplier.
WARNING
FIRE OR EXPLOSION HAZARD.
Failure to follow safety warnings exactly
could result in serious injury, death, or
property damage.
Do not store or use gasoline or other ammable
vapors and liquids in the vicinity of this or any
other appliance.
Installation and service must be performed
by a qualied installer, service agency or the
gas supplier.
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 immediatly
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the re
department.
USER’S INFORMATION
MANUAL

Lennox EL297UHV Series Specifications

General

Brand	Lennox
Model	EL297UHV Series
Category	Furnace
Language	English

Summary

Parts Identification and Safety

EL297UHV Parts Identification

Diagram and labels identifying key components of the EL297UHV gas furnace.

Notice to Homeowner

Information regarding furnace safety devices and periodic checks for unattended homes.

General Safety and Warnings

Safety Instructions

Essential safety guidelines for operating and maintaining the gas furnace safely.

Carbon Monoxide Hazard

Warning about carbon monoxide poisoning and precautions to prevent infiltration.

Operation and Gas Valve Control

Start-Up & Operation Information

Guidance on initial furnace setup, gas valve operation, and startup procedures.

Operating the Gas Valve

Step-by-step instructions for safely operating the gas valve for furnace ignition.

Turning Off Gas to the Unit

Procedure for safely shutting off the gas supply to the furnace for service.

Maintenance Procedures

Filters

Information on inspecting, cleaning, and replacing furnace filters for optimal operation.

Venting System

Inspection of the furnace vent system for obstructions, leaks, and structural integrity.

Blower

Guidance on checking the blower wheel for debris and cleaning as needed.

Burner Flame

Recommendation for annual checks of burner flame and combustion analysis.

Electrical

Checks for loose wiring, correct voltage, and blower motor amp-draw.

Service and Planned Maintenance

Service Reminder

Checklist of common issues before calling for service on the furnace.

Planned Service

Annual maintenance recommendations for the furnace system by a professional technician.

Repair Parts List