USER’S INFORMATION, MAINTENANCE AND SERVICE MANUAL

HIGH EFFICIENCY

TUBULAR HEAT EXCHANGER SERIES

MODELS: GF9/GM9/GY9

(Single Stage Downflow/Horizontal)

EFFICIENCY

RATING

CERTIFIED

ISO 9001

Certified Quality

Management System

TABLE OF CONTENTS

CONTACT INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

USER’S INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

INSTRUCTIONS FOR EXAMINING THE FURNACE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 HOW YOUR GAS FURNACE WORKS . . . . . . . . . . . . . . . . . . . . . . 3 START-UP AND SHUTDOWN INSTRUCTIONS . . . . . . . . . . . . . . . 3

Read the Instructions Below Before Trying to Start the Furnace . . 3 Operating Instructions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 To Turn Off the Appliance: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 FURNACE USER MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Blower Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Removing Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Motor Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

SERVICE AND MAINTENANCE MANUAL . . . . . . . . . . . . . . . . . . . . . 5

SAFETY SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 FURNACE MAINTENANCE SECTION . . . . . . . . . . . . . . . . . . . . . . . 5

SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Continuous Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Intermittent Blower - Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Heating Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Hot Surface Ignition System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

FURNACE CLEANING SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Burner Removal/Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Cleaning the Heat Exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Cleaning the Secondary Heat Exchanger . . . . . . . . . . . . . . . . . . .6

Cleaning the Vent / Air Intake System . . . . . . . . . . . . . . . . . . . . . .6

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

FURNACE CONTROL DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . .6

DIAGNOSTIC FAULT CODE STORAGE AND RETRIEVAL . . . . . .7

REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 REPLACEMENT PART CONTACT INFORMATION . . . . . . . . . . . . .10 WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 LIMITED WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

CONTACT INFORMATION

Go to website at www.york.com click on “contact”, then click on “contact form” and follow the instructions.

Contact us by mail:

York International

Consumer Relations

5005 York Drive

Norman, OK 73069

The manufacturer recommends that the user read all sec- tions of this manual and keep the manual for future refer- ence.

FIRE OR EXPLOSION HAZARD - Failure to follow safety warnings exactly could result in serious injury, death, or prop- erty damage.

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appli- ance.

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 (including cell phone) in your building.

Leave the building immediately.

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 fire depart- ment.

Installation and service must be performed by a quali- fied installer, service agency or the gas supplier.

SECTION I: USER’S INFORMATION

SAFETY

1.The furnace area must be kept clear and free of combustible mate- rials, gasoline and other flammable vapors and liquids.

2.Insulating materials may be combustible. The furnace must be kept free and clear of insulating materials. The furnace area must be examined when installed in an attic or other insulated space or when insulation is added to be sure that the insulation material has been kept away from the furnace.

3.The furnace needs air for combustion in order to operate properly and safely. Do not block or obstruct air openings on the furnace, air openings to the area where the furnace is installed, or spaces around the furnace.

4.Follow the instructions exactly as shown on the OPERATING INSTRUCTION LABEL or the Start-up and Shutdown Instructions on Page 3 of this manual when lighting the furnace or turning the furnace off.

5.Should the gas supply fail to shut off or if overheating occurs, shut off the gas valve to the furnace before shutting off the electrical supply.

6.Do not use this furnace if any part has been under water. A flood- damaged furnace is extremely dangerous. Attempts to use the fur- nace can result in fire or explosion. A qualified service agency should be contacted to inspect the furnace and replace all gas controls, control system parts, electrical parts that have been wet or the furnace if deemed necessary.

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York GF9 service manual Section I USER’S Information, Table of Contents, Contact Information, What to do if YOU Smell GAS

GM9, GF9, GY9 specifications

York GY9, GF9, and GM9 are advanced air conditioning units known for their efficiency and innovative technology. Designed primarily for commercial and industrial applications, these units are engineered to provide optimal performance while minimizing energy consumption.

One of the main features of the York GY9 series is its scroll compressor technology. This design is renowned for its reliability and quiet operation. The scroll compressors operate in a manner that reduces vibration and noise, making them suitable for environments where minimal disruption is crucial. Furthermore, these compressors are designed to optimize refrigerant circulation, contributing to improved cooling efficiency.

The GF9 model, on the other hand, is characterized by its modular design, which allows for easy scalability. This feature is particularly beneficial for businesses looking to expand their cooling capacity without extensive renovations. The modular approach means that multiple units can be connected and controlled as a single system, providing flexibility in design and installation.

In terms of energy efficiency, all three models integrate the latest environmentally-friendly refrigerants. These refrigerants help reduce the overall carbon footprint of the HVAC system while maintaining effective cooling performance. The units are designed to meet or exceed industry standards for energy efficiency, making them a cost-effective choice for long-term use.

Another notable characteristic of the York GY9, GF9, and GM9 units is their user-friendly control systems. Advanced control options include smart thermostats and building management system integration, allowing users to monitor and fine-tune their cooling performance remotely. This level of control enhances convenience and can lead to further energy savings through optimized operation.

Durability is also a key feature of these models. Constructed with robust materials, the York GY9, GF9, and GM9 are designed to withstand various environmental conditions, ensuring longevity and reducing maintenance costs. Their designs also incorporate advanced filtration systems, which improve indoor air quality by effectively removing pollutants and allergens.

In summary, York GY9, GF9, and GM9 air conditioning units stand out due to their efficient cooling, innovative technologies, energy-saving features, and robust construction. These units are ideal for commercial settings looking to balance performance with sustainability, all while ensuring a comfortable environment.