Table of Contents
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Quick Links
Contact information
To contact us online, go to www.york.com, select Contact Us, and follow the instructions.
To contact us by mail, use the following address:
Johnson Controls Ducted Systems
Consumer Relations
5005 York Drive
Norman, OK 73069
About this manual
Read all sections of this manual and keep the manual for future reference.
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov.
Certification
Note: Y81E, Z8ES, Y82E, Z8ET, Y82V, Z8VT, and RL18 models are certified only for the U.S.
market.
Understanding safety symbols and instructions
This is a safety alert symbol. When you see this symbol on labels or in manuals, be alert to the
potential for personal injury.
Understand and pay particular attention to the signal words DANGER, WARNING, or CAUTION, as
well as the NOTICE, Important, and Note alerts.
DANGER indicates an imminently hazardous situation, which, if not avoided, will result in death
or serious injury.
WARNING indicates a potentially hazardous situation, which, if not avoided, could result in death
or serious injury.
User's Information Manual: All Residential
Multi-position Gas Furnaces - 33 in. Models
Johnson Controls Ducted Systems
6100761-UUM-C-1124
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Table of Contents
Related Manuals for York Y91E
Summarization of Contents
Contact and Manual Information
Contact Information
Details on how to contact the manufacturer for support and inquiries.
About This Manual
Guidance on reading and retaining the manual for future reference.
Safety Symbols and Instruction Guide
Safety Alert Symbol Identification
Identifies potential personal injury hazards.
Signal Word Definitions
Explains DANGER, WARNING, CAUTION, NOTICE, Important, and Note alerts.
Fire and Explosion Hazard Warnings
Gas Leak Response Protocol
Critical steps to follow if you smell gas, emphasizing safety and immediate actions.
Approved Fuel Type Restrictions
Specifies furnace is for natural/LP gas only; prohibits liquid/solid fuels.
Specific Safety Rules and Precautions
Area Clearances and Airflow Requirements
Requirements for keeping the furnace area clear of combustibles and ensuring proper airflow.
Operating Safety Instructions and Warnings
Furnace Start-up and Shutdown Procedures
Follow manual instructions for lighting and turning off the furnace.
Overheating and Gas Failure Safety Actions
Actions to take if the gas supply fails to shut off or overheating occurs.
Insulation and Venting Safety Precautions
Precautions regarding insulation placement and horizontally vented furnaces.
Carbon-Monoxide Poisoning Hazard
CO Poisoning Prevention Measures
Ensure wall openings are sealed and vent terminals are clear of obstructions.
Furnace Component Location Diagrams
Non-condensing Model Component Layout
Diagram of component locations for non-condensing furnace models.
Condensing Model Component Layout
Diagram of component locations for condensing furnace models.
Furnace Component Location Diagrams
Modulating ECM Model Component Layout
Diagram of component locations for modulating ECM furnace models.
Ultra-Low NOx Model Component Layout
Diagram of component locations for Ultra-Low NOx furnace models.
Burner Flame and Inspection Points
Correct Burner Flame Appearance
Illustration showing the correct blue cone portion of the flame.
Heat Exchanger and Vent Pipe Inspection
Checks for clear passages, proper slope, and secure connections of vent pipes.
Furnace Installation Inspection Checklist
Casing, Base, and Burner Flame Checks
Inspect casing integrity, base soundness, and burner flame adjustment.
Air Filter and Accessory Inspection
Check external air filters and system accessories for proper condition and function.
Furnace Start-up and Shutdown Procedures
Understanding Furnace Operation
Explanation of the furnace's heating cycle and operation.
Step-by-Step Operating Instructions
Step-by-step guide for safely starting the furnace.
Automatic Ignition System Information
Appliance has an automatic ignitor; manual lighting is prohibited.
Appliance Shutdown Procedures
Furnace Turn-Off Sequence
Sequence for turning off the furnace, including thermostat and gas control settings.
Emergency Overheating/Gas Valve Action
Critical safety action for overheating or gas valve malfunction.
User Furnace Maintenance Guidelines
External Air Filter Installation and Inspection
Guidelines for installing and inspecting external air filters.
Furnace Maintenance and Service Information
Air Filter Cleaning and Replacement
Procedures for cleaning or replacing air filters.
Blower and Motor Maintenance
Information on blower assembly inspection and motor lubrication.
Troubleshooting Furnace Problems
Initial Visual Checks for Issues
Initial visual checks to perform before contacting a service technician.
Furnace Diagnostics and Professional Maintenance
Control Diagnostics and Fault Code Interpretation
Explanation of the furnace's LED fault code system.
Dealer and Contractor Maintenance Tasks
List of components requiring annual professional servicing.
Replacement Parts and Wiring Diagram Access
Guidance on obtaining replacement parts and locating the wiring diagram.
Residential Furnace Limited Warranty
Warranty Terms, Conditions, and Exclusions
Overview of warranty coverage, conditions, and limitations.
Heat Exchanger Warranty Requirements
Specific requirements for heat exchanger warranty validity.
Conditional Unit Replacement Option Details
Details on the unit replacement option for eligible models.
Warranty Period, Service, and Registration
Furnace Warranty Period Chart
Table detailing warranty durations for various furnace components.
Warranty Service Request Procedure
Steps for contacting dealers and the company for warranty claims.
Product Registration for Warranty Activation
Importance and methods for registering the product to activate warranty.
Warranty Exclusions and Liability Limitations
Comprehensive List of Warranty Exclusions
Comprehensive list of items and conditions explicitly not covered by the warranty.
Implied Warranties and Consequential Damage Limits
Information on implied warranties and limitations on consequential damages.
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