035-19643-001 Rev. B (0204)
14
Unitary Products Group
SECTION IV: WIRING DIAGRAM
FIGURE 10:
Wiring Diagram
Page 1: ...e 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 o...
Page 2: ...ng 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 a good seal 5 Examine the...
Page 3: ...e 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 all electric power...
Page 4: ...lter after cleaning you must do the following 1 Slide filter into place 2 Snap the door on or place the door in position and tighten the retaining screws if provided 3 Make sure the door is secure to...
Page 5: ...iliary Limit and Roll out Switches for closed contacts The Control checks that the Low Fire Pressure Switch 1LP is open The Inducer Motor is energized on high speed closing the con tacts of 1LP The Co...
Page 6: ...provide the highest CFM Pin Position B and C are the medium and medium low CFM settings Pin Position D will provide the lowest CFM Refer to Table 16 in the installation manual for the proper HEAT Tap...
Page 7: ...s were not previously removed also remove and discard these two screws located on each front corner of the blower assembly 3 Loosen the blower wheel set screw that secures the blower wheel to the blow...
Page 8: ...the conden sate drain pan Remove the vent blower housing blower and the condensate pan The turbulators can then be gently removed from the secondary heat exchanger 3 Using a stiff wire brush remove t...
Page 9: ...by the control Effect Control tries 3 times then goes into Soft Lockout There is a 1 minute delay after a failed ignition attempt 7 seconds is added to the igniter warm up time after a failed ignitio...
Page 10: ...W INDUCER LOW STAGE PRESSURE SWITCH HSI 1ST STAGE MAIN VALVE FLAME SENSE LOW CIRCULATOR HEAT SPEED 1ST STAGE LOW PRESSURE SWITCH CLOSE RECOGNITION HSI WARM UP 17 SEC IGNITION ACTIVATION PERIOD 4 SEC T...
Page 11: ...itary Products Group 11 SECTION III REPLACEMENT PARTS LIST 15 16 1 17 3 7A 13 14 5 8 12 9 2 7 6 6 11 6A 24 27 26 35 38 34 32 33 25 36 22 37 21 20 28 29 23 31 30 18 19 51 63 43 53 59 57 58 55 39 41 52...
Page 12: ...R BURNER BOX 31 COVER HEAT EXCHANGER 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 CO...
Page 13: ...SWITCH KIT DOES NOT INCLUDE ORIFICES FOR APPLICATION INFORMATION SEE FORM 035 14460 000 CONDENSATE NEUTRALIZER KIT ALL MODELS REPLACEMENT PART CONTACT INFORMATION This is a generic parts list To requ...
Page 14: ...035 19643 001 Rev B 0204 14 Unitary Products Group SECTION IV WIRING DIAGRAM FIGURE 10 Wiring Diagram...
Page 15: ...035 19643 001 Rev B 0204 Unitary Products Group 15 NOTES...
Page 16: ...lies 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 or...