York International DGAH Service Manual download pdf

Johnson Controls Unitary Products 129099-BUM-K-0613

USER’S INFORMATION,

MAINTENANCE AND

SERVICE MANUAL

HIGH EFFICIENCY SEALED COMBUSTION

GAS FURNACE

MODELS: DGAA and DGAH SERIES

(Single Stage Downflow Only)

For Installation In:

1. Manufactured (Mobile) Homes

2. Recreational Vehicles & Park Models

3. Modular Homes & Buildings

TABLE OF CONTENTS

CONTACT INFORMATION FOR USA . . . . . . . . . . . . . . . . . . . . . . . 1

CONTACT INFORMATION FOR CANADA . . . . . . . . . . . . . . . . . . . 1

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

While you are away . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

SEASONAL SERVICE INFORMATION . . . . . . . . . . . . . . . . . . . . . . 2

Your Service Technician . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

WARRANTY AND RESPONSIBILITIES . . . . . . . . . . . . . . . . . . . . . 2

GAS SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Natural Gas Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Propane Gas Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

INSTRUCTIONS FOR EXAMINING THE

FURNACE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Observing Burner Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

If Furnace Fails to Operate Properly . . . . . . . . . . . . . . . . . . . . . . . 3

HOW YOUR GAS FURNACE WORKS . . . . . . . . . . . . . . . . . . . . . . 4

IF FURNACE FAILS TO OPERATE PROPERLY . . . . . . . . . . . . . . 4

When You Call For Service Assistance . . . . . . . . . . . . . . . . . . . . . 4

To Contact Your Serviceman . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Read the Instructions Below Before Trying

to Start the Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

START-UP AND SHUTDOWN INSTRUCTIONS . . . . . . . . . . . . . . . 4

Operating Instructions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

To Turn Off the Appliance: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

FURNACE USER MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . .5

Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Removing Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Blower Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Motor Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

SERVICE AND MAINTENANCE MANUAL . . . . . . . . . . . . . . . . . . . . .6

SAFETY SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

FURNACE MAINTENANCE SECTION . . . . . . . . . . . . . . . . . . . . . .6

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

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

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

THE FURNACE CONTROLS AND THEIR FUNCTION . . . . . . . . . .6

SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Continuous Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Heating Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Hot Surface Ignition System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

FURNACE CONTROL DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . .8

REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

LIMITED WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

The manufacturer recommends that the user read all sec-

tions of this manual and keep the manual for future refer-

ence.

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.

CONTACT INFORMATION FOR USA CONTACT INFORMATION FOR CANADA

• Contact us by mail:

DISTRIBUTED BY:

Style Crest Inc.

Drawer A

Fremont, OH 43420

• Manufacturer:

Johnson Controls,

Unitary Products

• Go to website at www.york.com click on “contact”, then click on

“contact form” and follow the instructions.

• Contact us by mail:

Johnson Controls Unitary Products

Consumer Relations

5005 York Drive

Norman, OK 73069

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.

1 2 3 4 5 6 ... 13 14

Summary of Contents

Page 1 - SERVICE MANUAL

Johnson Controls Unitary Products 129099-BUM-K-0613USER’S INFORMATION,MAINTENANCE AND SERVICE MANUALHIGH EFFICIENCY SEALED COMBUSTIONGAS FURNACEMODELS

Page 2

129099-BUM-K-061310 Johnson Controls Unitary ProductsWIRING DIAGRAMDGAHITEM DESCRIPTION DGAH056BBSB DGAH077BBSB1 Switch, Pressure S1-32435972000 S1-32

Page 3 - PROPANE GAS

129099-BUM-K-0613Johnson Controls Unitary Products 11 FIGURE 8: Wiring Diagram - DGAA

Page 4

129099-BUM-K-061312 Johnson Controls Unitary Products FIGURE 9: Wiring Diagram - DGAH

Page 5

129099-BUM-K-0613Johnson Controls Unitary Products 13Limited Warranty Manufactured Housing FurnacesWARRANTY TERMS: Johnson Controls Unitary Products (

Page 6

Page 7 - NEUTRALS

129099-BUM-K-06132 Johnson Controls Unitary Products1. The furnace area must be kept clear and free of combustible materi-als, gasoline and other flam

Page 8 - FURNACE CONTROL DIAGNOSTICS

129099-BUM-K-0613Johnson Controls Unitary Products 3Some specific examples of service calls which cannot be included inwarranty payments are:1. Conver

Page 9

129099-BUM-K-06134 Johnson Controls Unitary ProductsHOW YOUR GAS FURNACE WORKSYour furnace is a very easy appliance to take for granted. Season afters

Page 10 - ACCESSORY PARTS LIST

129099-BUM-K-0613Johnson Controls Unitary Products 5To Turn Off the Appliance:1. Set the thermostat to lowest setting.2. Turn off all electric power t

Page 11

129099-BUM-K-06136 Johnson Controls Unitary ProductsBlower CareEven with good filters properly in place, blower wheels and motors willbecome dust lade

Page 12

129099-BUM-K-0613Johnson Controls Unitary Products 7SEQUENCE OF OPERATIONContinuous BlowerOn cooling/heating thermostats with fan switch, when the fan

Page 13 - Limited Warranty

129099-BUM-K-06138 Johnson Controls Unitary ProductsFURNACE CONTROL DIAGNOSTICSThe furnace has built-in, self diagnostic capability. If a system probl

Page 14 - Wichita, KS 67219

129099-BUM-K-0613Johnson Controls Unitary Products 9SECTION III: REPLACEMENT PARTS LISTAll components, assemblies, accessories, and replacement parts

York International DGAH Service Manual

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