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035-19592-001 Rev. C (0204)

Unitary Products Group

11

SECTION IV: WIRING DIAGRAM

 FIGURE 9:  

Wiring Diagram

Summary of Contents for FG9

Page 1: ...t have been wet or the furnace if deemed necessary 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 gasol...

Page 2: ...Examine the furnace casing making sure the physical support is sound without sagging cracks or gaps Examine the furnace base making sure it is physically sound without cracks gaps or sagging and has...

Page 3: ...e any part of the control system and any gas control which has been under water Operating Instructions 1 STOP Read the safety information above 2 Set the thermostat to the lowest setting 3 Turn off al...

Page 4: ...e you install the right size filter for your furnace Dirty filters greatly restrict the flow of air and may cause damage to the moving parts of the furnace If the filters become clogged the heat excha...

Page 5: ...n HEAT and the fan is set on AUTO and there is a call for heat a circuit is completed between terminals R and W of the thermostat When the proper amount of combustion air is being provided the pressur...

Page 6: ...emove burners from the burner assembly 7 Remove the upper cover plate at the top of the furnace Remove the internal baffle 8 The upper portion of the heat exchanger is now exposed 9 With a long flexib...

Page 7: ...s during the heating cycle This could be caused by low gas pres sure or faulty gas valve 9 FLASHES Indicates reversed line voltage polarity Both heating and cooling operations will be affected Check p...

Page 8: ...ARTS LIST C G R W Y HUM EAC XFMR LINE CIR HUM EAC XFMR LINE PARK PARK HEAT COOL 17 18 23 24 30 25 31 32 33 48 20 21 22 26 44 27 28 29 34 36 37 47 52 63 50 51 49 56 59 62 58 60 43 45 38 1 4 2 6 10 11 1...

Page 9: ...HANGER 32 PANEL FRONT Blower 33 PANEL FRONT Burner 34 PANEL TOP 35 SUPPORT BURNER 36 WRAPPER CABINET 37 PANEL VESTIBULE Lower 38 PLUG WINDOW CLEAR 875 MISCELLANEOUS 39 CLIP FILTER RETAINER 2Req d P3U...

Page 10: ...n ALL P3U MODELS 2TH13700424 THERMOSTAT One stage heat Deluxe 24V with heat only sub base does not include fan switch NOTE For one stage cool or one stage heat cool must be used with sub base 2TB17700...

Page 11: ...035 19592 001 Rev C 0204 Unitary Products Group 11 SECTION IV WIRING DIAGRAM FIGURE 9 Wiring Diagram...

Page 12: ...pplies only to products installed in the United States and Canada EXCLUSIONS This warranty does not cover any 1 Shipping labor or material charges 2 Damages resulting from transportation installation...

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