Suburban Nt Series NT12MEF Parts Diagram · Exploded View › Cabinet Assembly

Furnace · 4 assemblies · 8 diagram sheets · 76 parts · by Andrew Strick, mobile RV technician

OEM exploded parts diagrams for the Suburban Nt Series NT12MEF RV furnace: 4 assemblies (Exploded View › Cabinet Assembly, Exploded View › Burner Assembly, Replacement Furnace, Exploded View › Combustion Chamber-blower) and 76 manufacturer part numbers. 12 parts are marked as superseded — the description gives the replacement number to order instead.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

15 items

1. #GRILLE COVER MFR # 30483
2. #EXTENSION FRONT DISCHARGE ASSY MFR # 100867
3. #CABINET ASSY MFR # 100864
4. #APPLIANCE COMPONENTS RV; TEMPLATE VENT CAP MFR # 100852
5. #Furnace Vent; For Suburban Furnace NT-Series MFR # 260541
6. #CAP,VENT USE 260126 NT16F MFR # 260097 Superseded: see description
7. #VENT CAP USE 260541 MFR # 260126 Superseded: see description
8. #SCREW #8 X 1 3/4" MFR # 120725
9. #Wall Thermostat; Single Stage; For Heat/ Cool Control; Mechanical Readout; 12 Volt; Without Fan Speed Control; Without Fan On Mode MFR # 100402
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. #APPLIANCE COMPONENTS RV; Thermostat 3 Day Program MFR # 1F80R850
13. #Wall Thermostat; Single Stage; Snap-Action; Low Voltage; Heat Only; 24 Volt; White MFR # 01C20102S1
14. #T-STAT USE 100402 MODEL NT30M MFR # 160737 Superseded: see description
15. #Furnace Duct Cover Plate; Fits Suburban 4 Inch Duct MFR # 50733

Exploded View › Burner Assembly

Components

20 items

1. #MOUNTING BRACKETMEDIUM1220 AMP MFR # 10532
2. #BURNER ASM W/AIR SHUTTER ROD MFR # 10519
3. #BURNER ASM MFR # 140091
4. #APPLIANCE COMPONENTS RV; Orifice Main Burner #62 MFR # 180106
5. #303 MARINE TOUCHLESS SEALANT 1 GAL MFR # 30399
6. #WINCH HANDLE #6307 MFR # 70304
7. #APPLIANCE COMPONENTS RV; Holder Orifice MFR # 170543
8. #PIPE,MANIFOLD MFR # 170550
9. #ELBOW, SQUARE (1/8 NPT) MFR # 170549
10. #NIPPLE,PIPE 1/8" MFR # 170554
11. #Propane Adapter Fitting; Fits Suburban Part Numbers 171171/ 171172/ 171325/ 171326/ 171334/ 171406/ 171407/ 171443/ 171444/ 171445/ 211497/ 520423 MFR # 170545
12. #VALVE,GAS MFR # 160911
13. #VALVE USE 520423 MFR # 160762 Superseded: see description
14. #VALVE KIT USE 160911 & 170545 MFR # 520423 Superseded: see description
15. #BRACKET, VALVE MOUNTING MFR # 62229
16. #BRACKET, VALVE MOUNTING, TOP MFR # 62232
17. #NIPPLE (3/8 x 2") MFR # 170373
18. #APPLIANCE COMPONENTS RV; Elbow 90 Deg MFR # 170082
19. #NIPPLE, PIPE (3/8" x 4 1/4" BLACK IRON) MFR # 170353
20. #VALVE,SHUT OFF MFR # 160683

Replacement Furnace

Components

2 items

1. #USE 79-1814 MFR # NT12SEN Superseded: see description
2. #USE 79-1806 MFR # NT12SN Superseded: see description

Exploded View › Combustion Chamber-blower

Components

39 items

1. #APPLIANCE COMPONENTS RV; Hole Cover MFR # 290117
2. #APPLIANCE COMPONENTS RV; Gskt Cov Obs Hole N /L/A MFR # 70367
3. #COVER,HOLE AIR SHUTTER ADJU STMENT MFR # 260061
4. #CHAMBER,COMBUSTION MFR # 20820
5. #BOLT,MOUNTING MFR # 62171
6. #THERMOSTAT RELAY MFR # 230423
7. #GASKET,CROSSOVER TUBE MFR # 70412
8. #TUBE FOR GASKET USE 70412 MFR # 70290 Superseded: see description
9. #TUBE, CROSSOVER MFR # CROSSOVER TUBE
10. #WHEEL,COMBUSTION MFR # 350063
11. #APPLIANCE COMPONENTS RV; SCOOP BLOWER MFR # 62239
12. #HOUSING, COMBUSTION AIR BLOWER ASSY. MFR # 390075
13. #GASKET,SHAFT MOTOR MFR # 70283
14. #10-INCH 4-OHM MARINE SUBWOOFER MFR # 92622
15. #MOUNT,MOTOR USE 92622 NT12C/16C MFR # 61873 Superseded: see description
16. #MOTOR MFR # 230571
17. #HOUSING, BLOWER ASSY MFR # 390181
18. #Furnace Wiring Harness; For Suburban Furnace DD17DSI/ NT-Series MFR # 232161
19. #UNIVERSAL IGN BRD SMALL MFR # UIBS
20. #UIB L WITH POST TOP MFR # UIBLPOST
21. #UNIVERSAL IGN BRD LARGE MFR # UIBL
22. #UIB WITH FAN CONTROL MFR # FAN50PLUS
23. #Ignition Control Circuit Board Cover; Replacement For Dinosaurs Universal Igniter Boards; Large; White; Fire Retardant ABS Plastic MFR # LCVR
24. #COVER FOR UIB S MFR # SMALLCOVER
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. #UIB S WITH POST TOP MFR # UIBSPOST
27. #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
28. #BRACKET, MODULE BOARD MTG MFR # 62130
29. #N/A WHEEL,BLOWER MFR # 350066
30. #RING,BLOWER INLET NT16 C MFR # 390078
31. #APPLIANCE COMPONENTS RV; Sail Sw - Nla MFR # 230448
32. #APPLIANCE COMPONENTS RV; Limit Sw MFR # 230585
33. #WIRE,ELECTRODE MFR # 230513
34. #APPLIANCE COMPONENTS RV; Fan Switch MFR # 230582
35. #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
36. #GASKET, PILOT BURNER USE 71076 MFR # 70163 Superseded: see description
37. #APPLIANCE COMPONENTS RV; Electrode MFR # 230511
38. #TS-50: 50 AMP TRANSFER SWITCH MFR # 70278
39. #GSKT HSG BLOWER MFR # 70281