Suburban Nt Series NT22A Parts Diagram · Exploded View › Cabinet Assembly

Furnace · 4 assemblies · 4 diagram sheets · 66 parts · by Andrew Strick, mobile RV technician

OEM exploded parts diagrams for the Suburban Nt Series NT22A RV furnace: 4 assemblies (Exploded View › Cabinet Assembly, Exploded View › Burner Assembly, Replacement Furnace, Exploded View › Combustion Chamber) and 66 manufacturer part numbers. 16 parts are marked as superseded — the description gives the replacement number to order instead.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 › Cabinet Assembly

Components

17 items

1. #FRONT, MAIN CABINET ASSEMBLY (NT-22A,30A) MFR # 100543
2. #CABINET ASM,OUTER MFR # 100171S
3. #CABINET, BACK MFR # 100585
4. #BACK, CABINET (NT-20E) MFR # 100583
5. #Furnace Vent; For Suburban Furnace NT-Series MFR # 260541
6. #VENT CAP USE 260541 MFR # 260126 Superseded: see description
7. #CAP,VENT USE 260126 MFR # 260090 Superseded: see description
8. #ADAPTER FOR VENT CAP MFR # 62123
9. #T-STAT USE 100502 MFR # 66M010000 Superseded: see description
10. #Water Heater Gas Valve; For Uni-Line 110 Series; 1/2 Inch Inlet x 1/2 Inch Outlet; 50 To 90 Degrees MFR # 100502
11. #T-STAT USE 100502 *N* MFR # 160850 Superseded: see description
12. #N/A DOOR LATCH (SPRING TYPE) MFR # 150033
13. #DOOR,MAIN CABINET MFR # 30430
14. #DOOR, MAIN CABINET FRONT (NT-22A,30A) MFR # 30377
15. #APPLIANCE COMPONENTS RV;;Collar Duct MFR # 50296
16. #Furnace Duct Cover Plate; Fits Suburban 4 Inch Duct MFR # 50733
17. #32646 BUG BUST BI-LING 32OZ MFR # 50558

Exploded View › Burner Assembly

Components

14 items

1. #HOUSING,BLOWER MFR # 390054
2. #COVER, MOTOT AIR INTAKE (NT-22 & 30 ALT. REP) MFR # 390144
3. #WHEEL,BLOWER MFR # 350037
4. #WHEEL,BLOWER,SMALL MFR # 350036
5. #PLATE,DIVIDER MFR # 390045
6. #RING,INLET BLOWER MFR # 390027
7. #BUSHING,BLOWER MOTOR MFR # 70289
8. #SWITCH,SAIL NT12F/NT12C MFR # 230447
9. #SWITCH,SAIL USE 230447 MFR # 230449 Superseded: see description
10. #MICROSWITCH COVER NT32 C MFR # 61659
11. #TUBE,CROSSOVER USE 50A 1 3/4" X 2 1/2" MFR # 50588 Superseded: see description
12. #4X4 RIDE RITE F250/350 05 MFR # 2400
13. #TUBE,CROSSOVER USE 2400 2.5 X 1.75 MFR # 50A Superseded: see description
14. #Furnace Vacuum Cup; For Suburban NT-Series Furnace; Rubber MFR # 290079

Replacement Furnace

Components

1 item

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 #USE 79-1809 NT-30SP FURNACE MFR # NT24SPN Superseded: see description

Exploded View › Combustion Chamber

Components

34 items

1. #CHAMBER,COMBUSTION MDL# NT22A MFR # 110248
2. #SPACER, BRIDE - 14B MFR # 120732
3. #DIODE RECTIFIER MFR # 230297
4. #DIODE USE 230297 MFR # 230288 Superseded: see description
5. #APPLIANCE COMPONENTS RV; Ac/Dc Switching Relay MFR # 230255
6. #CONVERTER/CHARGER USE DLS15 MFR # PC15 Superseded: see description
7. #TRANSFORMER BE 8192 OR BE 8912 MFR # 230323
8. #CONVERTER,9 AMP USE 6712N W/O CHARGER MFR # 6509X Superseded: see description
9. #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
10. #DIODE & TRANSFORMER PKG MFR # 230312
11. #THERMOSTAT RELAY MFR # 230423
12. #SWITCH,FAN 11T-13 MFR # 230128
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. #APPLIANCE COMPONENTS RV; Igniter Piezo W/ Wire * MFR # 520577
17. #IGNITER,PIEZO USE 230521 MFR # 230325 Superseded: see description
18. #IGNITER, PIEZO USE 520577 MFR # 230521 Superseded: see description
19. #N/A JUNCTION BOX MFR # 90158
20. #COVER, JUNCTION BOX MFR # 90157
21. #APPLIANCE COMPONENTS RV; Knob Blk Pilot Reset MFR # 140093
22. #COVER,HOLE AIR SHUTTER ADJU STMENT MFR # 260061
23. #TS-50: 50 AMP TRANSFER SWITCH MFR # 70278
24. #IGNITER,PIEZO MFR # 140103
25. #ELECTRODE MFR # 230349
26. #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
27. #BURNER, PILOT MFR # 160535
28. #GASKET, PILOT BURNER USE 71076 MFR # 70163 Superseded: see description
29. #APPLIANCE COMPONENTS RV; Hole Cover MFR # 290117
30. #CAP,LIGHTER MFR # 290110
31. #GASKET,ELECTRODE MFR # 70276
32. #RETAINER,ELECTRODE MFR # 61697
33. #APPLIANCE COMPONENTS RV; Suburban Orifice MFR # 180188
34. #APPLIANCE COMPONENTS RV; Gskt Cov Obs Hole N /L/A MFR # 70367