Table of Contents
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USER'S INFORMATION,
MAINTENANCE AND
SERVICE MANUAL
SEALED COMBUSTION GAS FURNACE
MODELS: DGAA and DGAH SERIES
(Single Stage Downflow Only)
CONTACT INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SEASONAL SERVICE INFORMATION . . . . . . . . . . . . . . . . . . . . . . 2
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
WARRANTY AND RESPONSIBILITIES . . . . . . . . . . . . . . . . . . . . . 2
GAS SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
THE FURNACE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
HOW YOUR GAS FURNACE WORKS . . . . . . . . . . . . . . . . . . . . . . 4
IF FURNACE FAILS TO OPERATE PROPERLY . . . . . . . . . . . . . . 4
SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
START-UP AND SHUTDOWN INSTRUCTIONS . . . . . . . . . . . . . . . 4
CONTACT INFORMATION
• Go to website at www.york.com, then click on "Contact Us" and
follow the instructions.
• Contact us by mail:
We recommend that the user read all sections of this
manual and keep the manual for future reference.
WARNING
!
Cancer and Reproductive Harm - www.P65Warnings.ca.gov
SECTION I: SAFETY
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.
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.
CAUTION indicates a potentially hazardous situation, which, if not
avoided may result in minor or moderate injury. It is also used to
alert against unsafe practices and hazards involving only property dam-
age.
Johnson Controls Unitary Products
For Installation In:
1.Manufactured (Mobile) Homes
2.Recreational Vehicles & Park Models
3.Modular Homes & Buildings
TABLE OF CONTENTS
FURNACE USER MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . 5
SERVICE AND MAINTENANCE MANUAL . . . . . . . . . . . . . . . . . . . . 6
SAFETY SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
FURNACE MAINTENANCE SECTION . . . . . . . . . . . . . . . . . . . . . 6
FURNACE CLEANING SECTION . . . . . . . . . . . . . . . . . . . . . . . . . 6
THE FURNACE CONTROLS AND THEIR FUNCTION . . . . . . . . . 6
SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
FURNACE CONTROL DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . 8
REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
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 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 (including
cell phone) in your building.
• Leave the building immediately.
• Immediately call your gas supplier from a neighbor's phone. Fol-
low the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
- Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
Johnson Controls Unitary Products
Consumer Relations
5005 York Drive
Norman, OK 73069
WARNING
!
5165697-BUM-C-0818
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Table of Contents
Related Manuals for Johnson Controls Unitary Products York DGAA Series
Summary of Contents for Johnson Controls Unitary Products York DGAA Series
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Page 1: Table Of Contents
START-UP AND SHUTDOWN INSTRUCTIONS ....4 CONTACT INFORMATION Johnson Controls Unitary Products Consumer Relations • Go to website at www.york.com, then click on “Contact Us” and 5005 York Drive follow the instructions. -
Page 2: Seasonal Service Information
It is also the sole responsibility of the home owner to make sure that the home if located above 2,000 ft. altitude be derated. Johnson Controls Unitary Products... -
Page 3: Gas Supply
Call a qualified service agency or your gas the supply air plenum. Visually examine the exterior sections of the supplier. vent/combustion air piping and the vent connectors to be sure that they are physically sound without holes or excessive corrosion. Johnson Controls Unitary Products... -
Page 4: How Your Gas Furnace Works
11. After three (3) trials for ignition, if the appliance will not operate fol- low the instructions, “TO TURN OFF THE APPLIANCE” and call COMPANY: ______________________________________________ your service technician or gas supplier. ADDRESS: ______________________________________________ TELPHONE: _____________________________________________ Johnson Controls Unitary Products... -
Page 5: Furnace User Maintenance
Turn OFF the gas and electrical power supplies to the furnace. Check 4. Follow the Operating Instructions to place the furnace back in oper- all metal parts and surfaces to be sure they have cooled to room tem- ation. perature before you begin. Johnson Controls Unitary Products... -
Page 6: Service And Maintenance Manual
3. Gas Valve - The gas valve is 100% shut-off type and will fail safe if for some reason the gas is turned off. It is also of the snap opening The cleaning operations listed below must be performed only by a type which opens to fire position. qualified service agency. Johnson Controls Unitary Products... -
Page 7: Sequence Of Operation
“Jumper” located on the ignition control board. Refer to UPG Source 1 Parts. Figure 6. The heating cycle is complete, and the furnace is ready for the Never adjust pressure switch to allow furnace operation. start of the next heating cycle. Johnson Controls Unitary Products... -
Page 8: Furnace Control Diagnostics
This would indicate a faulty pressure switch or mis-wir- ing. If a flame is detected the control flashes the LED for 1/8 of a second and then enters a flame stabilization period. FIGURE 7: Furnace Event Control Schedule Johnson Controls Unitary Products... -
Page 9: Replacement Parts List
New replacement parts shown in bold face type at the first printing of parts list dated 12/15. Major components and suggested stocking items are shown with shaded item number. “<“ Across from row indicates a change in that row. --- Not applicable to specified model. Johnson Controls Unitary Products... - Page 10 S1-8680-5391 S1-8680-5391 Blower Wheel S1-02619654703 S1-02619654703 NOTES: 5. Contact Customer Service for installations at altitudes over 2000 feet above sea level. “<“Across from row indicates a change in that row. --- Not Applicable to specified model. Johnson Controls Unitary Products...
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Page 11: Limited Warranty
Manufactured Housing Furnaces WARRANTY TERMS: Johnson Controls Unitary Products ("Company") warrants this product to be free from defects in factory workmanship and material under normal use and service and will at its option, repair or replace defective parts without charge, subject to the exclusions below and according to the terms outlined in this warranty. - Page 12 MAINTENANCE: Company strongly recommends regular periodic preventive maintenance on this equipment. The person most familiar with the equipment in your HVAC system is a Participating Dealer, who can ensure that your maintenance program meets the Company Warranty conditions, maximize the equipment efficiency, and service your unit within the mandated guidelines. For additional buyer protection, Residential Home Comfort Plans are available from a Participating Dealer.