Suburban Nt Series NT30BW Parts Diagram · Exploded View › Burner Assembly

Furnace · 5 assemblies · 10 diagram sheets · 111 parts · by Andrew Strick, mobile RV technician

OEM exploded parts diagrams for the Suburban Nt Series NT30BW RV furnace: 5 assemblies (Exploded View › Burner Assembly, Replacement, Exploded View › Cabinet Assembly, Exploded View › Blower Assembly, Exploded View › Combustion Chamber) and 111 manufacturer part numbers. 25 parts are marked as superseded — the description gives the replacement number to order instead.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 › Burner Assembly

Components

16 items

1. #APPLIANCE COMPONENTS RV; Screw 10-24X1/2 Whiz Lock MFR # 121459
2. #APPLIANCE COMPONENTS RV; Suburban Burner Assy MFR # 10701
3. #Furnace Burner Orifice; For Suburban Furnace NT-30M/ NT-30S/ NT-30SP/ SF-30/ SF-30F/ P-30S/ NT-30K MFR # 180214
4. #Furnace Burner Orifice; For Suburban Furnace NT-34/ NT-34M/ NT-34S/ NT-34SP/ NT-35K/ SF-35/ SF-35F MFR # 180222
5. #Furnace Burner Orifice; Number 54 Orifice; For Suburban Furnace NT-20T/ NT-23M/ NT-24BW/ NT-24HA/ NT-24HS/ NT-24M/ NT-24MD/ NT-24MP/ NT-24MPD/ NT-24S/ NT-24SP/ NT-25K/ NT-30BW/ NT-30H/ NT-30HA/ NT-30HS/ NT-30MA/ NT-30MD/ NT-34H/ NT-34HS/ NT-34L/ NT-34MM/ NT-34MMD/ NT-34S/ NT-45M/ NT-45S/ P-45M/ P-45S MFR # 180215
6. #Furnace Gasket; Furnace Manifold Gasket; Fits Suburban Furnace NT-24SP/ NT-30SP/ NT-34SP/ NT-40/ P-30S/ P-40/ P-40B MFR # 70408
7. #PIPE, MANIFOLD NT34 MFR # 171034
8. #Screw; For Suburban Furnace NT-12SE/ NT-16SE/ NT-20SE; 10 x 1/2; Serrated Head; Single MFR # 121388
9. #VALVE,GAS USE 161078 MFR # 160832 Superseded: see description
10. #SUBURBAN VALVE MFR # 161123
11. #VALVE, GAS USE 161123 MFR # 161078 Superseded: see description
12. #Screw; For Suburban Furnace NT-Series; Fits Suburban Furnace Combustion Chamber; #10 x 3/8 Inch MFR # 121252
13. #Water Heater Gas Inlet Elbow; For Suburban Water Heater SW4-D; 90 Degree; 3/8 Inch; Single MFR # 525025
14. #Water Heater Gas Inlet Elbow; For Suburban Water Heater SW4-D; 90 Degree; Also Use New Number 525025 MFR # 170374 Superseded: see description
15. #BRACKET, VALVE MOUNTING MFR # 62819
16. #VALVE,SHUTOFF MFR # 160740

Replacement

Components

1 item

1. #Furnace Core; NT Series; LP Gas; Model Number NT-30SP; 30,000 BTU; Side/ Top And Bottom Duct Discharge; 5.5 Amp Draw; 12 Inch Width x 12-1/2 Inch Height x 23 Inch Depth; 25 Pounds; With Energy-Saving Electronic Ignition; With Gasket-Sealed Vent Assembly MFR # NT30SPN

Exploded View › Cabinet Assembly

Components

12 items

1. #CABINET MFR # 101176
2. #APPLIANCE COMPONENTS RV; Screw 10 X 3/4 Ph Ph MFR # 121224
3. #Screw; For Suburban Furnace NT-Series; Fits Suburban Furnace Combustion Chamber; #10 x 3/8 Inch MFR # 121252
4. #CABINET FRONT MFR # 101172
5. #Wall Thermostat; Single Stage; Snap-Action; Low Voltage; Heat Only; 24 Volt; White MFR # 01C20102S1
6. #T-STAT, WALL USE 100402 MFR # 160902 Superseded: see description
7. #APPLIANCE COMPONENTS RV; Thermostat 3 Day Program MFR # 1F80R850
8. #Wall Thermostat; Single Stage; For Heat/ Cool Control; Mechanical Readout; 12 Volt; Without Fan Speed Control; Without Fan On Mode MFR # 100402
9. #Wall Thermostat; Single Stage; For Heat And Cool Control; Programmable; Digital Display; 24 Volt; Battery Powered MFR # 1F87R875
10. #Wall Thermostat; Heat Only; Mechanical; 1 Stage; White; MFR # 1C20101
11. #32646 BUG BUST BI-LING 32OZ MFR # 50558
12. #Furnace Duct Cover Plate; Fits Suburban 4 Inch Duct MFR # 50733

Exploded View › Blower Assembly

Components

36 items

1. #Furnace Blower Wheel; For Suburban Furnace NT-30SP/ NT-34SP MFR # 350113
2. #Screw; For Suburban Furnace NT-Series; Fits Suburban Furnace Combustion Chamber; #10 x 3/8 Inch MFR # 121252
3. #Furnace Blower Housing; Furnace Blower Wheel Housing; For Suburban Furnace NT30SP/ NT34SP MFR # 390283
4. #Screw; Use With Suburban Furnace Model NT40; Phillips Head; 10-24 x 1/2 MFR # 121227 Superseded: see description
5. #Furnace Low Air Flow Switch; For Suburban Furnace NT-30/ NT-34/ NT-30M/ NT-34M/ NT-30S/ NT-34S/ NT-30SP/ NT-34SP/ NT-25/ NT-30/ NT-35/ NT-35K/ P-30S/ SF-20/ SF-25/ SF-30/ SF-35/ SF-20F/ SF-25F/ SF-30F/ SF-35F; Also Use New Number 233356 MFR # 230509 Superseded: see description
6. #Furnace Low Air Flow Switch; For Suburban Furnace NT-30/ NT-34/ NT-30M/ NT-34M/ NT-30S/ NT-34S/ NT-30SP/ NT-34SP/ NT-25/ NT-30/ NT-35/ NT-35K/ P-30S/ SF-20/ SF-25/ SF-30/ SF-35/ SF-20F/ SF-25F/ SF-30F/ SF-35F; Also Use New Number 525024 MFR # 233356 Superseded: see description
7. #Furnace Low Air Flow Switch; For Suburban Furnace Models NT-30/ NT-34/ NT-30M/ NT-34M/ NT-30S/ NT-34S/ NT-30SP/ NT-34SP/ NT-25/ NT-30/ NT-35/ NT-35K/ P-30S/ SF-20/ SF-25/ SF-30/ SF-35/ SF-20F/ SF-25F/ SF-30F/ SF-35F MFR # 230509MC
8. #Furnace Low Air Flow Switch; For Suburban Furnace NT-24M/ NT-24S/ NT-24SP MFR # 230510
9. #Furnace Low Air Flow Switch; For Suburban Furnace NT-40; Also Use New Number 233355 MFR # 232279 Superseded: see description
10. #Furnace Low Air Flow Switch; For Suburban Furnace NT-40 MFR # 233355
11. #Screw; Use With Suburban Furnace Part Numbers NT-16SE/ NT-20SE; # 2; 56 Inch x 5/8 Inch; Hex Head MFR # 121247 Superseded: see description
12. #APPLIANCE COMPONENTS RV; Fastener Tinnerman MFR # 121661
13. #Screw; For Suburban Furnace NT-12SE/ NT-16SE/ NT-20SE; 10 x 1/2; Serrated Head; Single MFR # 121388
14. #Furnace Motor Bracket; For Suburban NT-40 MFR # 62138
15. #Nut; For Suburban Furnace NT-12SE/ NT-16SE/ NT-20SE; Fits Furnace Combustion Air Housing; Locking; #10-24 Thread Size MFR # 120717
16. #Furnace Gasket; Furnace Crossover Tube Gasket; Fits Suburban Furnace NT-24M/ NT-30M/ NT-30SP/ NT-34SP/ NT-40 MFR # 70385
17. #MOTOR, BLOWER (507) MFR # PE2707Q
18. #Furnace Motor; For Suburban Furnace NT-30M/ NT-30S/ NT-30SP MFR # 231207
19. #Furnace Motor; For Suburban Furnace Models NT-24 M/ NT-24S/ NT-24SP MFR # 231206MC
20. #KIT MOTOR/MTG BRKTS MFR # 521138
21. #MOTOR, BLOWER (169) 231208 MFR # PE2787Q
22. #Furnace Motor; For Suburban Furnace NT-34M/ NT-34S/ NT-34SP/ NT-40S/ NT-42S/ NT-42T MFR # 231208
23. #Furnace Motor; For Suburban Furnace Models NT-34M/ NT-34S/ NT-34SP/ NT-40S/ NT-42S/ NT-42T; Also Use New Number 521138MC MFR # 231208MC Superseded: see description
24. #Furnace Motor; For Suburban Furnace Models NT-30M/ NT-30S/ NT-30SP; Also Use New Number 521137MC MFR # 231207MC Superseded: see description
25. #KIT MOTOR/MTG BRKTS MFR # 521137
26. #Furnace Motor; For Suburban Furnace NT-24 M/ NT-24S/ NT-24SP MFR # 231206
27. #Furnace Gasket; Motor Mount Gasket; Fits Suburban Furnace NT-40 MFR # 70384
28. #HSG COMB AIR MFR # 390417
29. #HOUSING, COMBUSTION AIR ASSY (NT-24BW,NT-30BW) MFR # 390416
30. #APPLIANCE COMPONENTS RV; Screw #10-16 X 1/2 MFR # 121436
31. #Furnace Combustion Wheel; For Use With Suburban Furnace NT24BW/ NT24SP/ NT30BW/ NT30SP/ NT34BW/ NT34SP/ NT40/ P30S; With Clamp MFR # 350110 Superseded: see description
32. #Furnace Combustion Air Housing Cover Mounting Clip; For Suburban Furnace NT24BW/ NT30SP/ NT24SP/ NT34SP/ NT40/ NT42T/ NT34BW/ NT30BW/ P30S/ P40/ P40S MFR # 121712
33. #Furnace Gasket; Furnace Combustion Air Housing Gasket; Fits Suburban Furnace NT-24/ NT-30/ NT-34H/ NT-HA/ NT-34S/ NT-30SP/ NT-34HS/ NT-30MA/ NT-34L/ NT-34MM/ P-30S/ P-40S/ NT-42S/ NT-42ST MFR # 70386
34. #Furnace Combustion Air Housing Cover; For Suburban Furnace NT30SP/ NT34SP/ NT40 MFR # 390424
35. #SCREW #8 x 1/2 STAINLESS (2 REQ.) MFR # 121647
36. #GASKET KIT *PIECE OUT KIT* MFR # 520195

Exploded View › Combustion Chamber

Components

53 items

1. #GLIDE TAPE 1/2" GLIDE 72" ***USE14-9313*** MFR # 21015
2. #COMBUSTION CHAMBER ASSY (NT-24BW) MFR # 21017
3. #Screw; For Suburban Furnace NT-12SE/ NT-16SE/ NT-20SE; 10 x 1/2; Serrated Head; Single MFR # 121388
4. #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
5. #GASKET, PILOT BURNER USE 71076 MFR # 70163 Superseded: see description
6. #Igniter Electrode; For Suburban Furnace Models NT-24M/ NT-30M/ NT-34M; Without Gasket MFR # 520733MC
7. #Igniter Electrode; For Suburban Furnace P-30S/ P-40S/ NT-30/ NT-34/ NT-24/ NT-30/ NT-34/ NT-24/ NT-30S/ NT-34S/ NT-24S/ NT-34S/ NT-30SP/ NT-34SP/ NT-24SP/ NT-30SP/ NT-34SP; Without Gasket; Also Use New Number 525019 MFR # 230956 Superseded: see description
8. #APPLIANCE COMPONENTS RV; Ignitor Wire MFR # 230949
9. #WIRE,HIGH VOLTAGE USE 231713 MFR # 318060002 Superseded: see description
10. #Furnace Wiring Harness; Use With All Suburban Model NT And P Series Electrode Furnaces; 22 Inch Length MFR # 231261 Superseded: see description
11. #Igniter Electrode; For Suburban Furnace Models P-30S/ P-40S/ NT-30/ NT-34/ NT-24/ NT-30/ NT-34/ NT-24/ NT-30S/ NT-34S/ NT-24S/ NT-34S/ NT-30SP/ NT-34SP/ NT-24SP/ NT-30SP/ NT-34SP; Without Gasket MFR # 230956mc
12. #APPLIANCE COMPONENTS RV; Wire Electrode - N.L.A. MFR # 231713
13. #Igniter Electrode; For Suburban Furnace NT-24M/ NT-30M/ NT-34M; Without Gasket MFR # 520733
14. #APPLIANCE COMPONENTS RV; Screw 8-32 X 3/8 Hex Hd MFR # 121407
15. #Nut; For Suburban Furnace NT-12SE/ NT-16SE/ NT-20SE; Fits Furnace Combustion Air Housing; Locking; #10-24 Thread Size MFR # 120717
16. #Furnace Access Door; For Suburban Furnace NT40; Burner Access Panel Assembly MFR # 30764
17. #GASKET,BURNER USE 71076 MFR # 70398 Superseded: see description
18. #APPLIANCE COMPONENTS RV; #8 Screw MFR # 120158
19. #LIMIT SW - NLA MFR # 231440
20. #APPLIANCE COMPONENTS RV; Bushing MFR # 70362
21. #BRACKET, LIMIT SWITCH MFR # 62352
22. #RADIATION SHIELD ASSEMBLY MFR # 110549
23. #Screw; For Suburban Furnace NT-Series; Fits Suburban Furnace Combustion Chamber; #10 x 3/8 Inch MFR # 121252
24. #GATEKING-F150 (04-14) MFR # 230714
25. #SCREW #6 x 1/4 (2 REQ.) MFR # 120714
26. #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
27. #UNIVERSAL IGN BRD SMALL MFR # UIBS
28. #UIB L WITH POST TOP MFR # UIBLPOST
29. #UIB WITH FAN CONTROL MFR # FAN50PLUS
30. #Ignition Control Circuit Board Cover; Replacement For Dinosaurs Universal Igniter Boards; Large; White; Fire Retardant ABS Plastic MFR # LCVR
31. #COVER FOR UIB S MFR # SMALLCOVER
32. #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
33. #BOARD,MODULE USE 520741 (05152435103) MFR # 230587 Superseded: see description
34. #UIB S WITH POST TOP MFR # UIBSPOST
35. #UNIVERSAL IGN BRD LARGE MFR # UIBL
36. #Furnace Wiring Harness; For Suburban Furnace DD17DSI/ NT-Series MFR # 232161
37. #APPLIANCE COMPONENTS RV; Screw 6 X 5/8 Ph Ph MFR # 121357
38. #APPLIANCE COMPONENTS RV; Insulation MFR # 70538
39. #BOARD,CHANNEL USE 520741 MFR # 231328 Superseded: see description
40. #Water Heater Burner; Large; For Suburban Water Heater SSRV6/ SSRV6M/ ESSRV6/ SSRV8/ SSRV8M/ ESSRV8/ SSRV10/ SSRV10M/ ESSWRV10/ 10ARVM/ E10ARV; With Target/ Burner Support Bracket/ Shutter/ Screw/ Nut/ Pilot Bracket/ Pilot Burner/ Thermocouple/ Tube/ Tube Fitting MFR # 520564
41. #BURNER, LARGE W/AIR SHUTTER USE 520564 MFR # 3000003 Superseded: see description
42. #APPLIANCE COMPONENTS RV; Bushing Snap 1/2" MFR # 70270
43. #APPLIANCE COMPONENTS RV; Panel Mod Board MFR # 90301
44. #Furnace Time Delay Relay; Use With Suburban Furnace Models NT-24-S/ NT-24-SP/ NT-30-S/ NT-30-SP/ NT-34-S/ NT-40/ P-30-S/ P-40-S; 24 Volt MFR # 231202MC Superseded: see description
45. #IGNITOR BOARDS AND ACCESS MFR # 12VDCTDR
46. #Furnace Time Delay Relay; Replacement For Older Furnaces That Use A Standard 12 Volt DC Igniter Board; Micro Controlled; 12 Volt DC; 1-1/2 Inch x 1-1/2 Inch; 4 Second Delay; 2 Minute Cool Down Period At The End Of The Heat Cycle; Also Use New Number 12VDCTDR MFR # 48000D Superseded: see description
47. #APPLIANCE COMPONENTS RV; Relay Switch MFR # 231202
48. #Furnace Time Delay Relay; For Suburban Furnace NT-12S/ NT-16S/ NT-20S/ NT-12SE/ NT-16SE/ NT-20SE/ NT-25/ NT-30/ NT-35/ SF-20/ SF-25/ SF-30/ SF-35/ SF-42/ SF-20F/ SF-25F/ SF-30F/ SF-35F/ SF-42F/ NT-24S/ NT-30S/ NT-34S/ NT-24SP/ NT-30SP/ NT-34SP/ NT-40 (NT24/30/34 S And SP Only Above Serial Number 1600851); 12 Volt MFR # 521069
49. #NR641592 CONTROL PANEL ASSEMBLY MFR # 51023
50. #VENT CAP - NLA MFR # 260156
51. #Screw; For Suburban Furnace Exhaust Vent; 8 X 3-1/4; Set Of 2 MFR # 121711
52. #SCREW,8 X 3 1/4 USE 121711 MFR # 121256 Superseded: see description
53. #APPLIANCE COMPONENTS RV; Screw 10 X 3/4 Ph Ph MFR # 121224