Suburban Nt Series NT22FCA Parts Diagram · Replacement Furnace

Furnace · 5 assemblies · 5 diagram sheets · 69 parts · by Andrew Strick, mobile RV technician

OEM exploded parts diagrams for the Suburban Nt Series NT22FCA RV furnace: 5 assemblies (Replacement Furnace, Exploded View › Cabinet Assembly, Exploded View › Blower Assembly, Exploded View › Burner Assembly, Exploded View › Combustion Chamber) and 69 manufacturer part numbers. 20 parts are marked as superseded — the description gives the replacement number to order instead.

The rating plate is on the furnace chassis — slide the unit's front panel off or look just inside the exterior access door. Suburban models (SF-30F, NT-34SP …) changed burners and boards over the years, so the serial number's date range matters as much as the model.

Replacement Furnace

Components

1 item

1. #USE 79-1809 NT-30SP FURNACE MFR # NT24SPN Superseded: see description

Exploded View › Cabinet Assembly

Components

15 items

1. #FRONT, MAIN CABINET, ASSEMBLY MFR # 100724
2. #BACK,PANEL MFR # 100803
3. #Furnace Vent; For Suburban Furnace NT-Series MFR # 260541
4. #VENT CAP USE 260541 MFR # 260126 Superseded: see description
5. #CAP,VENT USE 260126 MFR # 260060 Superseded: see description
6. #ADAPTER FOR VENT CAP MFR # 61727
7. #T-STAT USE 100402 MODEL NT30M MFR # 160737 Superseded: see description
8. #Wall Thermostat; Single Stage; For Heat/ Cool Control; Mechanical Readout; 12 Volt; Without Fan Speed Control; Without Fan On Mode MFR # 100402
9. #APPLIANCE COMPONENTS RV; Thermostat 3 Day Program MFR # 1F80R850
10. #Wall Thermostat; Single Stage; For Heat And Cool Control; Programmable; Digital Display; 24 Volt; Battery Powered MFR # 1F87R875
11. #Wall Thermostat; Heat Only; Mechanical; 1 Stage; White; MFR # 1C20101
12. #Wall Thermostat; Single Stage; Snap-Action; Low Voltage; Heat Only; 24 Volt; White MFR # 01C20102S1
13. #APPLIANCE COMPONENTS RV;;Collar Duct MFR # 50296
14. #32646 BUG BUST BI-LING 32OZ MFR # 50558
15. #Furnace Duct Cover Plate; Fits Suburban 4 Inch Duct MFR # 50733

Exploded View › Blower Assembly

Components

9 items

1. #COVER, MOTOR AIR INTAKE (NT-22E) MFR # 390047
2. #WHEEL,BLOWER MFR # 350037
3. #RING,INLET BLOWER MFR # 390027
4. #BUSHING,BLOWER MOTOR MFR # 70289
5. #SWITCH USE 230449 MICRO & PADDLE MFR # 230006 Superseded: see description
6. #MICROSWITCH COVER NT32 C MFR # 61659
7. #Furnace Vacuum Cup; For Suburban NT-Series Furnace; Rubber MFR # 290079
8. #PARTS PACK NT-22 FC, 32FC) MFR # 210922
9. #BLOWER ASSY COMPLETE MFR # 520023

Exploded View › Burner Assembly

Components

9 items

1. #COVER, MOTOR AIR INTAKE (NT-22E) MFR # 390047
2. #WHEEL,BLOWER MFR # 350037
3. #RING,INLET BLOWER MFR # 390027
4. #BUSHING,BLOWER MOTOR MFR # 70289
5. #MICROSWITCH COVER NT32 C MFR # 61659
6. #SWITCH USE 230449 MICRO & PADDLE MFR # 230006 Superseded: see description
7. #Furnace Vacuum Cup; For Suburban NT-Series Furnace; Rubber MFR # 290079
8. #BLOWER ASSY COMPLETE MFR # 520023
9. #PARTS PACK NT-22 FC, 32FC) MFR # 210922

Exploded View › Combustion Chamber

Components

44 items

1. #COMBUSTION CHAMBER MFR # 110311
2. #SPACER, BRIDE - 14B MFR # 120732
3. #DIODE RECTIFIER MFR # 230297
4. #APPLIANCE COMPONENTS RV; Ac/Dc Switching Relay MFR # 230255
5. #CONVERTER,9 AMP USE 6712N W/O CHARGER MFR # 6509X Superseded: see description
6. #Power Converter; DLS Series; Converts 108 To 132 Volt AC To 13.6 Volt DC; 200 Continuous Watts; 15 Amps Continuous Output; 80 Percent Efficiency; With Short Circuit/ Reverse Polarity/ Over Load/ Thermal Protection; 9.7 Inch Length x 6.7 Inch Width x 3.4 Inch Height; With 36 Inch Length Power Cord; Compatible With IOTA IQ4 Charge Controller MFR # DLS15
7. #TRANSFORMER BE 8192 OR BE 8912 MFR # 230323
8. #CONVERTER/CHARGER USE DLS15 MFR # PC15 Superseded: see description
9. #CONVERTER,12 AMP USE ELX12 PANEL MOUNT MFR # 6712N Superseded: see description
10. #RELAY USE 230423 MFR # 230275 Superseded: see description
11. #DIODE & TRANSFORMER PKG MFR # 230312
12. #THERMOSTAT RELAY MFR # 230423
13. #Furnace Limit Switch; For Suburban Furnace NT-24M/ NT-30M/ NT-34M/ NT-24S/ NT-30S/ NT-34S (Below Serial Number 1600851) MFR # 230575
14. #Furnace Limit Switch; For Suburban Furnace Models NT-24M/ NT-30M/ NT-34M/ NT-24S/ NT-30S/ NT-34S MFR # 230575MC
15. #SWITCH,FAN USE 230575 MFR # 230348 Superseded: see description
16. #Furnace Limit Switch; For Suburban Furnace NT-30SP/ NT-34SP/ NT-24/ NT-30/ NT-34/ NT-24M/ NT-30M/ NT-34M/ NT-24S/ NT-30S/ NT-34S/ P-30S; Also Use New Number 525020 MFR # 231244 Superseded: see description
17. #Furnace Limit Switch; For Suburban Furnace P-30S/ NT-34SP/ NT-24/ NT-30/ NT-34/ NT-24M/ NT-30M/ NT-34M/ NT-24S/ NT-30S/ NT-34S MFR # 230496
18. #Furnace Limit Switch; For Suburban Furnace Models P-30S/ NT-34SP/ NT-24/ NT-30/ NT-34/ NT-24M/ NT-30M/ NT-34M/ NT-24S/ NT-30S/ NT-34S MFR # 230496MC
19. #SWITCH,LIMIT USE 230496 210 DEGREE MFR # 230389 Superseded: see description
20. #SWITCH,LIMIT MFR # 232578
21. #UIB S WITH POST TOP MFR # UIBSPOST
22. #UIB L WITH POST TOP MFR # UIBLPOST
23. #ignition Control Circuit Board; For Suburban Furnace SF Series/ NT Series And All Water Heater DSI Series/ SW Series/ VDSI Series; Also Use New Number 521099 For Furnaces Or 520814 For Water Heaters MFR # 520741 Superseded: see description
24. #Furnace Wiring Harness; For Suburban Furnace DD17DSI/ NT-Series MFR # 232161
25. #BOARD,MODULE USE 520741 (05152435103) MFR # 230587 Superseded: see description
26. #Ignition Control Circuit Board Cover; Replacement For Dinosaurs Universal Igniter Boards; Large; White; Fire Retardant ABS Plastic MFR # LCVR
27. #COVER FOR UIB S MFR # SMALLCOVER
28. #ignition Control Circuit Board; Replacement For Suburban 520741 Or 520820 Boards And Fits All Suburban 12 Volt Furnaces; Will Not Replace 24 Volt AC Boards MFR # 521099
29. #UNIVERSAL IGN BRD LARGE MFR # UIBL
30. #UIB WITH FAN CONTROL MFR # FAN50PLUS
31. #UNIVERSAL IGN BRD SMALL MFR # UIBS
32. #COVER, JUNCTION BOX MFR # 90157
33. #TS-50: 50 AMP TRANSFER SWITCH MFR # 70278
34. #COVER,HOLE AIR SHUTTER ADJU STMENT MFR # 260061
35. #APPLIANCE COMPONENTS RV; Gskt Cov Obs Hole N /L/A MFR # 70367
36. #ELECTRODE ASM USE 230590 MFR # 230495 Superseded: see description
37. #APPLIANCE COMPONENTS RV; Electrode MFR # 230590
38. #ELECTRODE USE 230590 MFR # 230480 Superseded: see description
39. #GASKET, PILOT BURNER USE 71076 MFR # 70163 Superseded: see description
40. #Furnace Gasket; Furnace Burner Access Door Gasket And Electrode Gasket; Fits Suburban Furnace NT-12/ NT-16/ NT-20/ NT-12S/ NT-16S/ NT-20S/ NT-12SP/ NT-16SP/ NT-20SP/ NT-24/ NT-30/ NT-34/ NT-24M/ NT-30M/ NT-34M/ NT-24S/ NT-30S/ NT-34S/ NT-24SP/ NT-30SP/ NT-34SP/ NT-40/ P-30/ P-40; Also Use New Number 525011 MFR # 71076 Superseded: see description
41. #APPLIANCE COMPONENTS RV; Hole Cover MFR # 290117
42. #WIRE,HIGH VOLTAGE USE 231713 MFR # 318060002 Superseded: see description
43. #APPLIANCE COMPONENTS RV; Wire Electrode - N.L.A. MFR # 231713
44. #WIRE,ELECTRODE USE 318060002 MFR # 230491 Superseded: see description