Suburban Nt Series NT34BW Parts Diagram · Exploded View › Combustion Chamber

Furnace · 5 assemblies · 10 diagram sheets · 97 parts · by Andrew Strick, mobile RV technician

OEM exploded parts diagrams for the Suburban Nt Series NT34BW RV furnace: 5 assemblies (Exploded View › Combustion Chamber, Exploded View › Cabinet Assembly, Replacement, Exploded View › Burner Assembly, Exploded View › Blower Assembly) and 97 manufacturer part numbers. 19 parts are marked as superseded — the description gives the replacement number to order instead.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

57 items

1. #INTAKE TUBE ASSEMBLY MFR # 51146S
2. #CAP,VENT MFR # 260214
3. #INTAKE EXTENSION TUBE ASSEMBLY MFR # 50992S
4. #Screw; For Use With Suburban Furnace Vent NT.12SE/ NT-16SE/ NT-20SE; #10 x 3/4 MFR # 121853 Superseded: see description
5. #APPLIANCE COMPONENTS RV; Tube Vent MFR # 050996
6. #Screw; For Suburban Furnace Exhaust Vent; 8 X 3-1/4; Set Of 2 MFR # 121711
7. #GLIDE TAPE 1/2" GLIDE 72" ***USE14-9313*** MFR # 21015
8. #Screw; For Suburban Furnace NT-12SE/ NT-16SE/ NT-20SE; 10 x 1/2; Serrated Head; Single MFR # 121388
9. #GASKET, PILOT BURNER USE 71076 MFR # 70163 Superseded: see description
10. #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NT-34M/ NT-24S/ NT-30S/ NT-34S/ NT-24SP/ NT-30SP/ NT-34SP/ NT-40/ P-30/ P-40; Also Use New Number 525011 MFR # 71076 Superseded: see description
11. #Igniter Electrode; For Suburban Furnace NT-24/ NT-30/ NT-34/ NT-24S/ NT-30S/ NT-34S/ NT-24SP/ NT-30SP/ NT-34SP (Above Serial Number 920500001); Without Gasket; Also Use New Number 525029 MFR # 231933 Superseded: see description
12. #ELECTRODE REPLACES 231933MC MFR # 525029MC
13. #SERVICE KIT ELECTRODE MFR # 525029
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 #GASKET,BURNER USE 71076 MFR # 70398 Superseded: see description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; For Suburban Furnace NT-24SP/ NT-30SP/ NT-34SP; 6 x 1/4 Inch MFR # 121244
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. #UIB L WITH POST TOP MFR # UIBLPOST
28. #UNIVERSAL IGN BRD SMALL MFR # UIBS
29. #Furnace Wiring Harness; For Suburban Furnace DD17DSI/ NT-Series MFR # 232161
30. #UIB WITH FAN CONTROL MFR # FAN50PLUS
31. #UNIVERSAL IGN BRD LARGE MFR # UIBL
32. #Ignition Control Circuit Board Cover; Replacement For Dinosaurs Universal Igniter Boards; Large; White; Fire Retardant ABS Plastic MFR # LCVR
33. #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
34. #COVER FOR UIB S MFR # SMALLCOVER
35. #BOARD,MODULE USE 520741 MFR # 231741 Superseded: see description
36. #UIB S WITH POST TOP MFR # UIBSPOST
37. #APPLIANCE COMPONENTS RV; Insul Cap MFR # 70973
38. #APPLIANCE COMPONENTS RV; Screw 6 X 5/8 Ph Ph MFR # 121357
39. #BOARD,MODULE MFR # 231427
40. #BURNER, LARGE W/AIR SHUTTER USE 520564 MFR # 3000003 Superseded: see description
41. #APPLIANCE COMPONENTS RV; Insul Mod Board MFR # 70807
42. #APPLIANCE COMPONENTS RV; Bushing Snap 7/8" MFR # 230218
43. #APPLIANCE COMPONENTS RV; BUSHING SNAP MFR # 231827
44. #APPLIANCE COMPONENTS RV; Panel Mod Board MFR # 90301
45. #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
46. #IGNITOR BOARDS AND ACCESS MFR # 12VDCTDR
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. #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
50. #VENT CAP - NLA MFR # 260156
51. #NR641592 CONTROL PANEL ASSEMBLY MFR # 51023
52. #APPLIANCE COMPONENTS RV; Tube Vent MFR # 50996S
53. #APPLIANCE COMPONENTS RV; Thermostat 3 Day Program MFR # 1F80R850
54. #Wall Thermostat; Single Stage; For Heat/ Cool Control; Mechanical Readout; 12 Volt; Without Fan Speed Control; Without Fan On Mode MFR # 100402
55. #Wall Thermostat; Single Stage; Snap-Action; Low Voltage; Heat Only; 24 Volt; White MFR # 01C20102S1
56. #Wall Thermostat; Single Stage; For Heat And Cool Control; Programmable; Digital Display; 24 Volt; Battery Powered MFR # 1F87R875
57. #Wall Thermostat; Heat Only; Mechanical; 1 Stage; White; MFR # 1C20101

Exploded View › Cabinet Assembly

Components

6 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. #CABINET FRONT (SOLID) MFR # 101198
6. #Furnace Duct Cover Plate; Fits Suburban 4 Inch Duct MFR # 50733

Replacement

Components

1 item

1. #Furnace Core; NT Series; LP Gas; Model Number NT-34SP; 34,000 BTU; Direct Discharge; 7.5 Amp Draw; 12 Inch Width x 12-1/2 Inch Height x 23 Inch Depth; 10.3 Pounds; With Energy-Saving Electronic Ignition; With Gasket-Sealed Vent Assembly MFR # NT34SPN

Exploded View › Burner Assembly

Components

13 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-34/ NT-34M/ NT-34S/ NT-34SP/ NT-35K/ SF-35/ SF-35F MFR # 180222
4. #Furnace Gasket; Furnace Manifold Gasket; Fits Suburban Furnace NT-24SP/ NT-30SP/ NT-34SP/ NT-40/ P-30S/ P-40/ P-40B MFR # 70408
5. #PIPE, MANIFOLD NT34 MFR # 171034
6. #Screw; For Suburban Furnace NT-12SE/ NT-16SE/ NT-20SE; 10 x 1/2; Serrated Head; Single MFR # 121388
7. #SUBURBAN VALVE MFR # 161123
8. #VALVE, GAS USE 161123 MFR # 161078 Superseded: see description
9. #Screw; For Suburban Furnace NT-Series; Fits Suburban Furnace Combustion Chamber; #10 x 3/8 Inch MFR # 121252
10. #WIRE PWR SPLY MFR # 231877
11. #Water Heater Gas Inlet Elbow; For Suburban Water Heater SW4-D; 90 Degree; 3/8 Inch; Single MFR # 525025
12. #Water Heater Gas Inlet Elbow; For Suburban Water Heater SW4-D; 90 Degree; Also Use New Number 525025 MFR # 170374 Superseded: see description
13. #BRACKET, VALVE MOUNTING MFR # 62819

Exploded View › Blower Assembly

Components

26 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-40; Also Use New Number 233355 MFR # 232279 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 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
8. #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
9. #Furnace Low Air Flow Switch; For Suburban Furnace NT-40 MFR # 233355
10. #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
11. #APPLIANCE COMPONENTS RV; Fastener Tinnerman MFR # 121661
12. #Screw; For Suburban Furnace NT-12SE/ NT-16SE/ NT-20SE; 10 x 1/2; Serrated Head; Single MFR # 121388
13. #Furnace Motor Bracket; For Suburban NT-40 MFR # 62138
14. #Nut; For Suburban Furnace NT-12SE/ NT-16SE/ NT-20SE; Fits Furnace Combustion Air Housing; Locking; #10-24 Thread Size MFR # 120717
15. #Furnace Gasket; Furnace Crossover Tube Gasket; Fits Suburban Furnace NT-24M/ NT-30M/ NT-30SP/ NT-34SP/ NT-40 MFR # 70385
16. #Furnace Motor; For Suburban Furnace NT-34M/ NT-34S/ NT-34SP/ NT-40S/ NT-42S/ NT-42T MFR # 231208
17. #MOTOR, BLOWER (169) 231208 MFR # PE2787Q
18. #KIT MOTOR/MTG BRKTS MFR # 521138
19. #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
20. #Furnace Gasket; Motor Mount Gasket; Fits Suburban Furnace NT-40 MFR # 70384
21. #HSG COMB AIR MFR # 390417
22. #APPLIANCE COMPONENTS RV; Screw #10-16 X 1/2 MFR # 121436
23. #Furnace Combustion Wheel; For Use With Suburban Furnace NT24BW/ NT24SP/ NT30BW/ NT30SP/ NT34BW/ NT34SP/ NT40/ P30S; With Clamp MFR # 350110 Superseded: see description
24. #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
25. #Furnace Combustion Air Housing Cover Mounting Clip; For Suburban Furnace NT24BW/ NT30SP/ NT24SP/ NT34SP/ NT40/ NT42T/ NT34BW/ NT30BW/ P30S/ P40/ P40S MFR # 121712
26. #Furnace Combustion Air Housing Cover; For Suburban Furnace NT30SP/ NT34SP/ NT40 MFR # 390424