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129099-BUM-J-0112

Johnson Controls Unitary Products

9

SECTION III: REPLACEMENT PARTS LIST

All components, assemblies, accessories, and replacement parts for this furnace are available through your qualified service installer or refer to the
service center list in your booklet. It is not recommended that the homeowner purchase, install, or replace any components of this furnace. Contact
your local contactor, dealer, or service provider for additional information.

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23

19

22

21

18

17

16

1

7

5

12

11

13

4

BURNER ORIFICE

(SEE CHART)

3

2

14

10

15

6

CONTROL BOX DETAIL

6

20

Summary of Contents for DGAA

Page 1: ...r read all sections of this manual and keep the manual for future reference SECTION I 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 insulated space or when i...

Page 2: ...asses it over the hot furnace heat exchanger and circulates the warmed air through the ductwork to the house The furnace is equipped with the controls necessary for proper opera tion The various components referred to in this manual and on the fur nace rating plate are identified in Figure 1 WARRANTY AND RESPONSIBILITIES It is the sole responsibility of the home owner to make certain that the gas ...

Page 3: ...ew yellow tips The burner flames for propane gas should appear blue with moderate yellow tips The flame should appear cylindrical in shape and should extend from the end of the burner into the heat exchanger Observing Burner Operation 1 Observe burner to make sure it ignites Observe color of flame On natural gas the flame will burn blue with appreciably yellow tips On Propane gas a yellow flame ma...

Page 4: ... roof jack 4 Check the gas valve and line connections for leaks 5 Make any adjustments necessary for good operation SAFETY INFORMATION Read the Instructions Below Before Trying to Start the Furnace 1 This appliance does not have a pilot It is equipped with an ignition device which automatically lights the burner Do not try to light the burner by hand 2 BEFORE OPERATING smell all around the applian...

Page 5: ...re the area is well ventilated Follow instruction To turn off the appliance Check all metal parts and surfaces to be sure they have cooled to room temperature before you begin 2 Remove the filter door 3 Remove the air filter by sliding it down the track The air filter will slide out of the rack 4 Replace throw away filter s with the same size new filter s Throw away filter s may be replaced with c...

Page 6: ... doors Dis connect the gas supply piping at the union to permit removal of the entire burner and gas control assembly from the vestibule panel Use the wrench boss on the gas valve when removing or installing this piping 3 Unplug the igniter from the wire harness Disconnect sensor wires Identify and note the location of all leads for ease of reinstallation 4 Remove the screws holding the burner ass...

Page 7: ...ly does not return or the fault condition is not corrected the ignition control will lock out for 60 minutes During burner operation a momentary loss of power for 50 milliseconds or longer will de energize the gas valve When the power is restored the gas valve will remain de energized and the ignition sequence will immediately restart As the gas starts to flow and ignition occurs the flame sensor ...

Page 8: ...ure switch hose or faulty pressure switch 4 FLASH Limit Switch Open this indicates that a primary or auxiliary limit switch has opened its normally closed contacts With this fault code the control will operate the supply air blower and inducer This condition may be caused by dirty filter improperly sized duct system incorrect blower speed setting incorrect firing rate or faulty blower motor 5 FLAS...

Page 9: ... through your qualified service installer or refer to the service center list in your booklet It is not recommended that the homeowner purchase install or replace any components of this furnace Contact your local contactor dealer or service provider for additional information 9 23 19 22 21 18 17 16 1 7 5 12 11 13 4 BURNER ORIFICE SEE CHART 3 2 14 10 15 6 CONTROL BOX DETAIL 6 20 ...

Page 10: ... S1 37319806100 S1 37319806100 S1 37319806100 S1 37319806100 21 Plug Connector S1 02521192000 S1 02521192000 S1 02521192000 S1 02521192000 22 Capacitor Run See Note 3 Old see note 4 S1 02420063000 S1 02420063000 S1 02420063000 S1 02420063000 Capacitor New see note 4 S1 02435602000 S1 02435602000 S1 02435602000 S1 02435602000 Capacitor Units built on after 8 11 2008 S1 02435813000 S1 02435813000 S1...

Page 11: ...gram Wiring 157953 157953 26 Strike Door S1 02118364000 S1 02118364000 27 Latch Door S1 02118365000 S1 02118365000 28 Housing Blower S1 37323864001 S1 37323864001 29 Gasket Combustion Air Box S1 01006900005 S1 01006900005 30 Gasket Burner S1 01006742000 S1 01006742000 31 Gasket Booster Assembly S1 01006900015 S1 01006900015 32 Gasket Heat Exchanger S1 01006900001 S1 01006900001 NOTE Not Shown New ...

Page 12: ...129099 BUM J 0112 12 Johnson Controls Unitary Products SECTION IV WIRING DIAGRAM FIGURE 8 Wiring Diagram DGAA ...

Page 13: ...129099 BUM J 0112 Johnson Controls Unitary Products 13 FIGURE 9 Wiring Diagram DGAH ...

Page 14: ...e maintenance as set out in the operation and service instructions 10 Cleaning replacement of filters or any other routine maintenance as set out in the User s Information Maintenance and Service Manual 11 Replacement or cleaning of nozzles or orifices 12 Fuses either internal or external to the product 13 Excessive fuel or electricity consumption THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES E...

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