Suburban Nt Series NT22FCD Parts Diagram · Exploded View › Combustion Chamber

Furnace · 5 assemblies · 5 diagram sheets · 100 parts · by Andrew Strick, mobile RV technician

OEM exploded parts diagrams for the Suburban Nt Series NT22FCD RV furnace: 5 assemblies (Exploded View › Combustion Chamber, Exploded View › Cabinet Assembly, Exploded View › Blower Assembly, Exploded View › Burner Assembly, Replacement Furnace) and 100 manufacturer part numbers. 27 parts are marked as superseded — the description gives the replacement number to order instead.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.

Exploded View › Combustion Chamber

Components

43 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. #TRANSFORMER BE 8192 OR BE 8912 MFR # 230323
6. #CONVERTER,9 AMP USE 6712N W/O CHARGER MFR # 6509X Superseded: see description
7. #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
8. #CONVERTER/CHARGER USE DLS15 MFR # PC15 Superseded: see description
9. #RELAY USE 230423 MFR # 230275 Superseded: see description
10. #DIODE & TRANSFORMER PKG MFR # 230312
11. #THERMOSTAT RELAY MFR # 230423
12. #Furnace Limit Switch; For Suburban Furnace Models NT-24M/ NT-30M/ NT-34M/ NT-24S/ NT-30S/ NT-34S MFR # 230575MC
13. #SWITCH,FAN USE 230575 MFR # 230348 Superseded: see description
14. #Furnace Limit Switch; For Suburban Furnace NT-24M/ NT-30M/ NT-34M/ NT-24S/ NT-30S/ NT-34S (Below Serial Number 1600851) MFR # 230575
15. #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
16. #SWITCH,LIMIT USE 230496 210 DEGREE MFR # 230389 Superseded: see description
17. #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NT-24/ NT-30/ NT-34/ NT-24M/ NT-30M/ NT-34M/ NT-24S/ NT-30S/ NT-34S/ P-30S; Also Use New Number 525020 MFR # 231244 Superseded: see description
18. #SWITCH,LIMIT MFR # 232578
19. #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
20. #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
21. #BOARD,MODULE USE 520741 (05152435103) MFR # 230587 Superseded: see description
22. #Furnace Wiring Harness; For Suburban Furnace DD17DSI/ NT-Series MFR # 232161
23. #UIB WITH FAN CONTROL MFR # FAN50PLUS
24. #Ignition Control Circuit Board Cover; Replacement For Dinosaurs Universal Igniter Boards; Large; White; Fire Retardant ABS Plastic MFR # LCVR
25. #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
26. #UNIVERSAL IGN BRD LARGE MFR # UIBL
27. #UIB L WITH POST TOP MFR # UIBLPOST
28. #COVER FOR UIB S MFR # SMALLCOVER
29. #UIB S WITH POST TOP MFR # UIBSPOST
30. #UNIVERSAL IGN BRD SMALL MFR # UIBS
31. #COVER, JUNCTION BOX MFR # 90157
32. #TS-50: 50 AMP TRANSFER SWITCH MFR # 70278
33. #COVER,HOLE AIR SHUTTER ADJU STMENT MFR # 260061
34. #APPLIANCE COMPONENTS RV; Gskt Cov Obs Hole N /L/A MFR # 70367
35. #ELECTRODE ASM USE 230590 MFR # 230495 Superseded: see description
36. #APPLIANCE COMPONENTS RV; Electrode MFR # 230590
37. #ELECTRODE USE 230590 MFR # 230480 Superseded: see description
38. #GASKET, PILOT BURNER USE 71076 MFR # 70163 Superseded: see description
39. #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
40. #APPLIANCE COMPONENTS RV; Hole Cover MFR # 290117
41. #WIRE,ELECTRODE USE 318060002 MFR # 230491 Superseded: see description
42. #APPLIANCE COMPONENTS RV; Wire Electrode - N.L.A. MFR # 231713
43. #WIRE,HIGH VOLTAGE USE 231713 MFR # 318060002 Superseded: see description

Exploded View › Cabinet Assembly

Components

16 items

1. #FRONT, MAIN CABINET, ASSEMBLY MFR # 100724
2. #CABINET ASM,OUTER MFR # 100733
3. #BACK,PANEL MFR # 100803
4. #CAP,VENT USE 260126 MFR # 260060 Superseded: see description
5. #VENT CAP USE 260541 MFR # 260126 Superseded: see description
6. #Furnace Vent; For Suburban Furnace NT-Series MFR # 260541
7. #ADAPTER FOR VENT CAP MFR # 61727
8. #Wall Thermostat; Single Stage; For Heat And Cool Control; Programmable; Digital Display; 24 Volt; Battery Powered MFR # 1F87R875
9. #Wall Thermostat; Heat Only; Mechanical; 1 Stage; White; MFR # 1C20101
10. #Wall Thermostat; Single Stage; For Heat/ Cool Control; Mechanical Readout; 12 Volt; Without Fan Speed Control; Without Fan On Mode MFR # 100402
11. #Wall Thermostat; Single Stage; Snap-Action; Low Voltage; Heat Only; 24 Volt; White MFR # 01C20102S1
12. #APPLIANCE COMPONENTS RV; Thermostat 3 Day Program MFR # 1F80R850
13. #T-STAT USE 100402 MODEL NT30M MFR # 160737 Superseded: see description
14. #APPLIANCE COMPONENTS RV;;Collar Duct MFR # 50296
15. #32646 BUG BUST BI-LING 32OZ MFR # 50558
16. #Furnace Duct Cover Plate; Fits Suburban 4 Inch Duct MFR # 50733

Exploded View › Blower Assembly

Components

20 items

1. #HOUSING,BLOWER MFR # 390054
2. #COVER, MOTOR AIR INTAKE (NT-22E) MFR # 390047
3. #4X4 RIDE RITE F250/350 05 MFR # 2400
4. #BLOWER MOTOR FITS SELECT SUBRB NT20/22/32 FURNACES MFR # PE2416Q
5. #GASKET,ROPE EXHAUST (200) MFR # 70487
6. #WHEEL,BLOWER MFR # 350037
7. #WHEEL,BLOWER,SMALL MFR # 350036
8. #PLATE,DIVIDER MFR # 390045
9. #RING,INLET BLOWER MFR # 390027
10. #BUSHING,BLOWER MOTOR MFR # 70289
11. #MICROSWITCH COVER NT32 C MFR # 61659
12. #SWITCH,SAIL NT12F/NT12C MFR # 230447
13. #SWITCH,SAIL USE 230447 MFR # 230449 Superseded: see description
14. #SWITCH USE 230449 MICRO & PADDLE MFR # 230006 Superseded: see description
15. #BOATGUARD 19'-21 102' 'VHULL RUNABO MFR # 70206
16. #TUBE,CROSSOVER USE 50A 1 3/4" X 2 1/2" MFR # 50588 Superseded: see description
17. #TUBE,CROSSOVER USE 2400 2.5 X 1.75 MFR # 50A Superseded: see description
18. #Furnace Vacuum Cup; For Suburban NT-Series Furnace; Rubber MFR # 290079
19. #PARTS PACK NT-22 FC, 32FC) MFR # 210922
20. #BLOWER ASSY COMPLETE MFR # 520023

Exploded View › Burner Assembly

Components

20 items

1. #BURNER,MAIN NT32 FCA MFR # 10387
2. #BURNER MFR # 10509
3. #VALVE USE 520423 MFR # 160734 Superseded: see description
4. #Propane Adapter Fitting; Fits Suburban Part Numbers 171171/ 171172/ 171325/ 171326/ 171334/ 171406/ 171407/ 171443/ 171444/ 171445/ 211497/ 520423 MFR # 170545
5. #VALVE KIT USE 160911 & 170545 MFR # 520423 Superseded: see description
6. #VALVE,GAS USE 160911 MFR # 160739 Superseded: see description
7. #VALVE,GAS MFR # 160911
8. #BURNER ASM MFR # 140091
9. #BURNER ASM W/AIR SHUTTER ROD MFR # 10519
10. #BURNER MFR # 10366
11. #3/8 Inch x 1/4 Inch HEX BUSHING MFR # 170280
12. #INLET TUBING MFR # 170488
13. #MANIFOLD PIPE ASSEMBLY MFR # B170478
14. #Water Heater Gas Inlet Elbow; For Suburban Water Heater SW4-D; 90 Degree; 3/8 Inch; Single MFR # 525025
15. #Water Heater Gas Inlet Elbow; For Suburban Water Heater SW4-D; 90 Degree; Also Use New Number 525025 MFR # 170374 Superseded: see description
16. #ELBOW MFR # 170519
17. #ELBOW USE 170519 MFR # 170408 Superseded: see description
18. #APPLIANCE COMPONENTS RV; Orifice Main Burner #53 MFR # 180193
19. #APPLIANCE COMPONENTS RV; Suburban Orifice MFR # 180188
20. #VALVE, SHUT OFF MFR # 160712

Replacement Furnace

Components

1 item

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