Suburban Nt Series NT34S Parts Diagram · Exploded View › Cabinet Assembly

Furnace · 5 assemblies · 10 diagram sheets · 128 parts · by Andrew Strick, mobile RV technician

OEM exploded parts diagrams for the Suburban Nt Series NT34S RV furnace: 5 assemblies (Exploded View › Cabinet Assembly, Replacement, Exploded View › Blower Assembly, Exploded View › Combustion Chamber Assembly, Exploded View › Burner Assembly) and 128 manufacturer part numbers. 32 parts are marked as superseded — the description gives the replacement number to order instead.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

18 items

1. #Furnace Cabinet; Replacement Cabinet For Suburban Furnace N30M/ NT-20T/ NT-24MA/ NT-24MP/ NT-24MPD/ NT-24S/ NT-24SP/ NT-34MA/ NT-30MP/ NT-30MPD/ NT-30S/ NT-30SP/ NT-34L/ NT-34LD/ NT-34S/ NT-34SP MFR # 101874
2. #Furnace Cabinet Panel Mounting Clip; For Suburban Furnace NT30S/ NT24S/ NT34S/ NT20T/ P40/ P40S MFR # 121378
3. #Furnace Gasket; Furnace Bottom Duct Adapter Gasket; Fits Suburban Furnace NT-24/ NT-30/ NT-34S/ NT-24/ NT-30SP/ NT-25/ NT-30/ NT-35K/ NT-24/ NT-30/ NT-34HS/ P-30S MFR # 62164
4. #Screw; For Suburban Furnace NT-12SE/ NT-16SE/ NT-20SE; 10 x 1/2; Serrated Head; Single MFR # 121388
5. #Furnace Adapter Plate; For Suburban Furnace NT-30SP MFR # 101871DG
6. #FRONT,CABINET GRAY ***SEE NOTES FOR USE #'S MFR # 100808 Superseded: see description
7. #APPLIANCE COMPONENTS RV; Screw 10 X 3/4 Ph Ph MFR # 121224
8. #NR627947 RETAINER-PANEL-12 UPR-BLK MFR # 50715
9. #T-STAT USE 161154 MFR # 160912 Superseded: see description
10. #Wall Thermostat; Single Stage; Snap-Action; Low Voltage; Heat Only; 24 Volt; White MFR # 01C20102S1
11. #APPLIANCE COMPONENTS RV; Thermostat 3 Day Program MFR # 1F80R850
12. #Wall Thermostat; Heat; Not Programmable; Mechanical Readout; Black MFR # 161210
13. #Wall Thermostat; Heat Only; Mechanical; 1 Stage; White; MFR # 1C20101
14. #Wall Thermostat; Single Stage; For Heat And Cool Control; Programmable; Digital Display; 24 Volt; Battery Powered MFR # 1F87R875
15. #Wall Thermostat; Single Stage; For Heat/ Cool Control; Mechanical Readout; 12 Volt; Without Fan Speed Control; Without Fan On Mode MFR # 100402
16. #Wall Thermostat; Single Stage; For Heat Control; Mechanical Readout; White Case MFR # 161154
17. #Furnace Duct Cover Plate; Fits Suburban 4 Inch Duct MFR # 50733
18. #Furnace Vent Adapter; Replacement For Suburban Furnace NT-20T/ NT24S/ NT24SP/ NT-30M/ NT-30S/ NT-30SP/ NT-34S/ NT-34SP/ P-30S MFR # 260089

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 › Blower Assembly

Components

28 items

1. #WHEEL,ROOM AIR USE 350113 MFR # 350076 Superseded: see description
2. #Furnace Blower Wheel; For Suburban Furnace NT-30SP/ NT-34SP MFR # 350113
3. #Screw; For Suburban Furnace NT-Series; Fits Suburban Furnace Combustion Chamber; #10 x 3/8 Inch MFR # 121252
4. #Furnace Blower Housing; Furnace Blower Wheel Housing; For Suburban Furnace NT30SP/ NT34SP MFR # 390283
5. #Screw; Use With Suburban Furnace Model NT40; Phillips Head; 10-24 x 1/2 MFR # 121227 Superseded: see description
6. #Furnace Low Air Flow Switch; For Suburban Furnace NT-40; Also Use New Number 233355 MFR # 232279 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. #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
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; Washer Lock #2 MFR # 121364
13. #NUT HEX 2-56 MFR # 120672
14. #Screw; For Suburban Furnace NT-12SE/ NT-16SE/ NT-20SE; 10 x 1/2; Serrated Head; Single MFR # 121388
15. #Furnace Motor Bracket; For Suburban NT-40 MFR # 62138
16. #Nut; For Suburban Furnace NT-12SE/ NT-16SE/ NT-20SE; Fits Furnace Combustion Air Housing; Locking; #10-24 Thread Size MFR # 120717
17. #Furnace Gasket; Furnace Crossover Tube Gasket; Fits Suburban Furnace NT-24M/ NT-30M/ NT-30SP/ NT-34SP/ NT-40 MFR # 70385
18. #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
19. #Furnace Motor; For Suburban Furnace NT-34M/ NT-34S/ NT-34SP/ NT-40S/ NT-42S/ NT-42T MFR # 231208
20. #KIT MOTOR/MTG BRKTS MFR # 521138
21. #MOTOR, BLOWER (169) 231208 MFR # PE2787Q
22. #Furnace Gasket; Motor Mount Gasket; Fits Suburban Furnace NT-40 MFR # 70384
23. #APPLIANCE COMPONENTS RV; Suburban Comb Air Housing MFR # 390179
24. #APPLIANCE COMPONENTS RV; Screw #10-16 X 1/2 MFR # 121436
25. #APPLIANCE COMPONENTS RV; Wheel Blower Small 6-1/4 MFR # 350069
26. #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
27. #HOUSING,AIR USE 390424 MFR # 390240 Superseded: see description
28. #Furnace Combustion Air Housing Cover; For Suburban Furnace NT30SP/ NT34SP/ NT40 MFR # 390424

Exploded View › Combustion Chamber Assembly

Components

68 items

1. #APPLIANCE COMPONENTS RV; Screw 8-32 X 3/8 Hex Hd MFR # 121407
2. #Igniter Electrode; For Suburban Furnace NT-24M/ NT-30M/ NT-34M; Without Gasket MFR # 520733
3. #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
4. #Furnace Wiring Harness; Use With All Suburban Model NT And P Series Electrode Furnaces; 22 Inch Length MFR # 231261 Superseded: see description
5. #APPLIANCE COMPONENTS RV; Ignitor Wire MFR # 230949
6. #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
7. #WIRE,HIGH VOLTAGE USE 231713 MFR # 318060002 Superseded: see description
8. #Igniter Electrode; For Suburban Furnace Models NT-24M/ NT-30M/ NT-34M; Without Gasket MFR # 520733MC
9. #APPLIANCE COMPONENTS RV; Wire Electrode - N.L.A. MFR # 231713
10. #APPLIANCE COMPONENTS RV; Nut 10-24 Hex Lock (Std) MFR # 121421
11. #DOOR BURNER - NLA MFR # 30523
12. #SCREW MFR # 30523C
13. #GASKET, PILOT BURNER USE 71076 MFR # 70163 Superseded: see description
14. #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
15. #APPLIANCE COMPONENTS RV; #8 Screw MFR # 120158
16. #Screw; For Suburban Furnace NT-12SE/ NT-16SE/ NT-20SE; 10 x 1/2; Serrated Head; Single MFR # 121388
17. #Furnace Access Door Sight Glass; Replacement For Suburban Furnace NT-Series/ P-45M/ P-45S MFR # 310026
18. #APPLIANCE COMPONENTS RV; Cover Plate MFR # 290120
19. #GASKET,BURNER USE 71076 MFR # 70398 Superseded: see description
20. #CHAMBER MFR # 20925
21. #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
22. #SWITCH,LIMIT MFR # 232578
23. #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
24. #SWITCH,LIMIT USE 230496 MFR # 230773 Superseded: see description
25. #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
26. #Screw; For Suburban Furnace NT-Series; Fits Suburban Furnace Combustion Chamber; #10 x 3/8 Inch MFR # 121252
27. #APPLIANCE COMPONENTS RV; Bushing MFR # 70362
28. #GATEKING-F150 (04-14) MFR # 230714
29. #SCREW #6 x 1/4 (2 REQ.) MFR # 120714
30. #APPLIANCE COMPONENTS RV; Bushing Snap 1/2" MFR # 70270
31. #WATER FLANGE WHIT PLASTC MFR # 62135
32. #UIB WITH FAN CONTROL MFR # FAN50PLUS
33. #UIB L WITH POST TOP MFR # UIBLPOST
34. #BOARD,MODULE USE 520741 (05152435103) MFR # 230587 Superseded: see description
35. #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
36. #UIB S WITH POST TOP MFR # UIBSPOST
37. #Furnace Wiring Harness; For Suburban Furnace DD17DSI/ NT-Series MFR # 232161
38. #COVER FOR UIB S MFR # SMALLCOVER
39. #UNIVERSAL IGN BRD SMALL MFR # UIBS
40. #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
41. #UNIVERSAL IGN BRD LARGE MFR # UIBL
42. #Ignition Control Circuit Board Cover; Replacement For Dinosaurs Universal Igniter Boards; Large; White; Fire Retardant ABS Plastic MFR # LCVR
43. #APPLIANCE COMPONENTS RV; Screw 6 X 5/8 Ph Ph MFR # 121357
44. #CAP LUG #1-3/8 RED INSULATOR CAP F/ CIR BD MFR # 70549
45. #BOARD,CHANNEL USE 520741 MFR # 231328 Superseded: see description
46. #APPLIANCE COMPONENTS RV; Insulation MFR # 70538
47. #BURNER, LARGE W/AIR SHUTTER USE 520564 MFR # 3000003 Superseded: see description
48. #APPLIANCE COMPONENTS RV; Panel Mod Board MFR # 90301
49. #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
50. #THERMOSTAT RELAY MFR # 230423
51. #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
52. #APPLIANCE COMPONENTS RV; Relay Switch MFR # 231202
53. #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
54. #IGNITOR BOARDS AND ACCESS MFR # 12VDCTDR
55. #VENT CAP USE 79-8143 MFR # 260542 Superseded: see description
56. #VENT,EXHAUST TUBE USE 260164 ALSO NEED 50454 INTK TUBE MFR # 260111 Superseded: see description
57. #***USE 79-8142*** MFR # 260164 Superseded: see description
58. #Furnace Intake Tube; For Suburban Furnace NT12S/ NT-16S/ NT-20S/ NT-16SQ/ NT-20SQ/ NT-30SP/ NT-34SP; 3 Inch Length; With Gasket MFR # 50906
59. #Furnace Intake Tube; For Suburban Furnace NT12S/ NT-16S/ NT-20S/ NT-16SQ/ NT-20SQ/ NT-30SP/ NT-34SP; 3 Inch Length MFR # 052159
60. #Furnace Gas Valve; For Suburban NT20T/ NT24S/ NT30S/ NT34S Series Furnaces; 110 Series; 3/8 Inch Inlet x 3/8 Inch Outlet; 160 Degrees MFR # 110504
61. #SHIELD,RADIATION MFR # 110504S
62. #APPLIANCE COMPONENTS RV; Screw 10 X 3/4 Ph Ph MFR # 121224
63. #Screw; For Suburban Furnace Exhaust Vent; 8 X 3-1/4; Set Of 2 MFR # 121711
64. #SCREW,8 X 3 1/4 USE 121711 MFR # 121256 Superseded: see description
65. #APPLIANCE COMPONENTS RV; Screw 10-24X1/2 Whiz Lock MFR # 121459
66. #Furnace Limit Switch; For Suburban Furnace Models NT-24M/ NT-30M/ NT-34M/ NT-24S/ NT-30S/ NT-34S MFR # 230575MC
67. #Furnace Limit Switch; For Suburban Furnace NT-24M/ NT-30M/ NT-34M/ NT-24S/ NT-30S/ NT-34S (Below Serial Number 1600851) MFR # 230575
68. #Furnace Gasket; For Suburban Furnace NT 24/ NT 30/ NT 34/ NT 24SP/ NT 30SP/ NT 34SP/ NT 40/ P30S/ P40 MFR # 520797

Exploded View › Burner Assembly

Components

19 items

1. #Screw; For Suburban Furnace NT-Series; Fits Suburban Furnace Combustion Chamber; #10 x 3/8 Inch MFR # 121252
2. #APPLIANCE COMPONENTS RV; Suburban Burner Assy MFR # 10701
3. #BURNER,STAINLESS USE 10701 MFR # 10619 Superseded: see description
4. #APPLIANCE COMPONENTS RV; Suburban Orifice MFR # 180188
5. #Furnace Burner Orifice; For Suburban Furnace NT-30M/ NT-30S/ NT-30SP/ SF-30/ SF-30F/ P-30S/ NT-30K MFR # 180214
6. #Furnace Burner Orifice; For Suburban Furnace NT-34/ NT-34M/ NT-34S/ NT-34SP/ NT-35K/ SF-35/ SF-35F MFR # 180222
7. #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
8. #Furnace Gasket; Furnace Manifold Gasket; Fits Suburban Furnace NT-24SP/ NT-30SP/ NT-34SP/ NT-40/ P-30S/ P-40/ P-40B MFR # 70408
9. #Screw; For Suburban Furnace NT-12SE/ NT-16SE/ NT-20SE; 10 x 1/2; Serrated Head; Single MFR # 121388
10. #MANIFOLD ASM ***USE 73-0833*** MFR # 170757 Superseded: see description
11. #SUBURBAN VALVE MFR # 161123
12. #VALVE, GAS USE 161123 MFR # 161078 Superseded: see description
13. #VALVE,GAS USE 161078 MFR # 160832 Superseded: see description
14. #PIPE,GAS INLET - Obsolete MFR # 170858S
15. #Furnace Gasket; Furnace Gas Inlet Tube Gasket; Fits Suburban Furnace NT-45S MFR # 70432
16. #APPLIANCE COMPONENTS RV; Elbow 90 Deg MFR # 170082
17. #Furnace Gasket; Furnace Disk Cover Gasket; Fits Suburban Furnace NT-20T/ NT-23M/ NT-24M/ NT-24MD/ NT-24S/ NT-24SP/ NT-30M/ NT-30MD/ NT-30S/ NT-30SP/ NT-34MM/ NT-34MMD/ NT-34S/ NT-34SP/ P-30S/ P-45S/ NT-45SE MFR # 70534
18. #APPLIANCE COMPONENTS RV; Disc Cov Gas Inlet MFR # 62408
19. #VALVE,SHUTOFF MFR # 160740