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NU-TOOL NTH100-2 manual

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Table of contents for the manual

  • Page 1

    IMPORTANT: Read and understand this manual before assembling, start- ing or servicing heater. Improper use of heater can cause serious injury. Keep this manual for future reference. Heater Sizes: 35,000 50,000 70,000 100,000 150,000 Btu/Hr Models: NTH35-2, NTH50-2, NTH70-2, NTH100-2, and NTH150-2 POR T ABLE FORCED AIR HEA TERS OWNER’S MANUAL[...]

  • Page 2

    2 105787 POR T ABLE FORCED AIR HEA TERS SAFETY INFORMA TION WARNINGS IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, oper- ate, or service this heater. Im- proper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning. DANGER: Carbo[...]

  • Page 3

    3 105787 OWNER’S MANUAL Side Cover Lower Shell Fuel Cap Hot Air Outlet Upper Shell Power Cord Fuel Tank Fan Guard Lower Shell Side Cover Fuel Tank Upper Shell Hot Air Outlet Handle Fan Guard Air Filter End Cover Fuel Cap Power Cord ON/OFF Switch with Light ON/OFF Switch with Light PRODUCT IDENTIFICA TION Figure 1 - 35/50/70,000 Btu/Hr Models Figu[...]

  • Page 4

    4 105787 POR T ABLE FORCED AIR HEA TERS Screw Wheel Support Frame Wheel Cap Nut Nut Extended Hub Front Handle Axle Rear Handle Air Inlet Fuel Tank Flange Hot Air Outlet ASSEMBL Y (FOR 100,000 AND 150,000 BTU/HR MODELS ONLY) These models are furnished with wheels and handles. Wheels, handles, and the mounting hardware are found in the shipping carto[...]

  • Page 5

    5 105787 OWNER’S MANUAL OPERA TION WARNING: Review and un- derstand the warnings in the Safety Information section, page 2. They are needed to safely op- erate this heater. Follow all local codes when using this heater. TO START HEATER 1. Follow all ventilation and safety infor- mation. 2. Fill fuel tank with kerosene or No. 1 fuel oil. 3. Attach[...]

  • Page 6

    6 105787 POR T ABLE FORCED AIR HEA TERS STORING, TRANSPOR TING, OR SHIPPING Note: If shipping, transport companies re- quire fuel tanks to be empty. 1. Drain fuel tank. Note: Some models have drain plug on underside of fuel tank. If so, remove drain plug to drain all fuel. If heater does not have drain plug, drain fuel through fuel cap opening. Be [...]

  • Page 7

    7 105787 OWNER’S MANUAL REMEDY 1. Fill tank with kerosene 2. See Pump Pr essur e Adjustment, page 10 3. See Fuel Filter , page 8 4. See Nozzle Assembly , page 1 1 5. Drain and flush fuel tank with clean kerosene. See Storing, T ransporting, or Shipping, page 6 6. Check electrical connections. See W iring Diagram, page 25 7. Replace ignitor, see [...]

  • Page 8

    8 105787 POR T ABLE FORCED AIR HEA TERS Figure 9 - Fuel Filter Removal, 35/50/70,000 Btu/Hr Models UPPER SHELL REMOVAL 1. Remove screws and lock washers along each side of heater using 5/16" nut- driver . These screws attach upper and lower shells together . 2. Lift upper shell off. 3. Remove fan guard. FUEL FILTER (35/50/70,000 Btu/Hr Models)[...]

  • Page 9

    9 105787 OWNER’S MANUAL SER VICE PROCEDURES Continued Continued IGNITOR 1. Remove upper shell and fan guard (see page 8). 2. Remove fan (see page 13). 3. Remove 4 side cover screws with a 5/16" nut driver . Remove side cover (see Figure 9 or 10, page 8). 4. Disconnect ignitor wires (black) from ignition control assembly (see Figure 1 1). Pul[...]

  • Page 10

    10 105787 POR T ABLE FORCED AIR HEA TERS AIR OUTPUT, AIR INTAKE, AND LINT FILTERS 1. Remove upper shell (see page 8). 2. Remove filter end cover screws using 5/16" nut-driver . 3. Remove filter end cover . 4. Replace air output and lint filters. 5. W ash or replace air intake filter (see Pr eventative Maintenance Schedule, page 6). 6. Repl[...]

  • Page 11

    11 105787 OWNER’S MANUAL Continued SER VICE PROCEDURES Continued Figure 18 - Removing Air and Fuel Line Hoses (100,000 Btu/Hr Model Only) Figure 20 - Removing Nozzle/Adapter Assembly Figure 21 - Nozzle and Nozzle Adapter NOZZLE ASSEMBLY 1. Remove upper shell (see page 8). 2. Remove fan (see page 13). 3 . Remove fuel and air line hoses from nozzle[...]

  • Page 12

    12 105787 POR T ABLE FORCED AIR HEA TERS PUMP ROTOR (Procedure if Rotor is Binding) 1. Remove upper shell (see page 8). 2. Remove filter end cover screws using 5/16" nut-driver . 3. Remove filter end cover and air filters. 4. Remove pump plate screws using 5/16" nut-driver . 5. Remove pump plate. 6. Remove rotor , insert, and blades. 7[...]

  • Page 13

    13 105787 OWNER’S MANUAL Unacceptable Acceptable FAN IMPORTANT: Remove fan from motor shaft before removing motor from heater. The weight of the motor resting on the fan could damage the fan pitch. 1. Remove upper shell (see page 8). 2. Use 1/8" allen wrench to loosen set- screw which holds fan to motor shaft. 3. Slip fan off motor shaft. 4.[...]

  • Page 14

    14 105787 POR T ABLE FORCED AIR HEA TERS 1 2 3 4 5 6 7 8 9 10 11 12 13 16 9-2 9-1 9-3 9-4 9-5 17 18 19 20 21 22 23 24 26 27 28 29 30 34 35 36 32 33 9-6 15 14 31 42 41 43 40 38 37 39 25 ILLUSTRA TED PA R T S BREAKDOWN NTH35-2 35,000 BTU/HR MODEL Motor and Pump Assembly 12-11 12-18 12-17 12-16 12-15 12-14 12-13 12-12 12-10 12-1 12-3 12-4 12-5 12-6 12[...]

  • Page 15

    15 105787 OWNER’S MANUAL P ARTS LIST NTH35-2 35,000 BTU/HR MODEL This list contains replaceable parts used in your heater. When ordering parts, be sure to provide the correct model and serial numbers (from the model plate), then the part number and description of the desired part. KEY PART NO. NUMBER DESCRIPTION QTY. 1 M51104-01 Handle 1 2 098511[...]

  • Page 16

    16 105787 POR T ABLE FORCED AIR HEA TERS 1 2 3 4 5 6 7 8 9 10 11 12 13 16 9-2 9-1 9-3 9-4 9-5 17 18 19 20 21 22 23 24 26 27 28 29 30 34 35 36 32 33 9-6 15 14 31 42 41 43 40 38 37 39 25 ILLUSTRA TED PA R T S BREAKDOWN NTH50-2 50,000 BTU/HR MODEL Motor and Pump Assembly 12-11 12-18 12-17 12-16 12-15 12-14 12-13 12-12 12-10 12-1 12-3 12-4 12-5 12-6 12[...]

  • Page 17

    17 105787 OWNER’S MANUAL P ARTS LIST NTH50-2 50,000 BTU/HR MODEL This list contains replaceable parts used in your heater. When ordering parts, be sure to provide the correct model and serial numbers (from the model plate), then the part number and description of the desired part. KEY PART NO. NUMBER DESCRIPTION QTY. 1 M51104-01 Handle 1 2 098511[...]

  • Page 18

    18 105787 POR T ABLE FORCED AIR HEA TERS 1 2 3 4 5 6 7 8 9 10 11 12 13 16 9-2 9-1 9-3 9-4 9-5 17 18 19 20 21 22 23 24 26 27 28 29 30 34 35 36 32 33 9-6 15 14 31 42 41 43 40 38 37 39 25 ILLUSTRA TED PA R T S BREAKDOWN NTH70-2 70,000 BTU/HR MODEL Motor and Pump Assembly 12-11 12-18 12-17 12-16 12-15 12-14 12-13 12-12 12-10 12-1 12-3 12-4 12-5 12-6 12[...]

  • Page 19

    19 105787 OWNER’S MANUAL P ARTS LIST NTH70-2 70,000 BTU/HR MODEL This list contains replaceable parts used in your heater. When ordering parts, be sure to provide the correct model and serial numbers (from the model plate), then the part number and description of the desired part. KEY PART NO. NUMBER DESCRIPTION QTY. 1 M51104-01 Handle 1 2 098511[...]

  • Page 20

    20 105787 POR T ABLE FORCED AIR HEA TERS 1 2 3 23 19 9 10 16 11 12 15 25 27 24 28 20 22 21 30 31 17 14 14 35 36 32 26 13 18 5 4 6 7 8 7-2 7-1 7-5 7-4 7-3 7-6 43 42 41 33 34 37 40 39 44 38 29 ILLUSTRA TED PA R T S BREAKDOWN NTH100-2 100,000 BTU/HR MODEL Motor and Pump Assembly 10-1 10-2 10-3 10-4 10-5 10-6 10-7 10-8 10-9 10-10 10-11 10-12 10-13 10-1[...]

  • Page 21

    21 105787 OWNER’S MANUAL KEY PART NO. NUMBER DESCRIPTION QTY. 1 098511-257 Upper Shell 1 2 102432-01 Screw/Lockwasher, 1/2" 8 3 098512-65 Combustion Chamber 1 4 103971-01 Photocell Bracket 1 5 M10908-2 Screw, #6-32 x 3/8" 2 6 M16656-24 Photocell Assembly 1 7 ** Burner Strap Assembly 1 7-1 HA3027 Nozzle Assembly 1 7-2 102548-05 Ignitor K[...]

  • Page 22

    22 105787 POR T ABLE FORCED AIR HEA TERS 1 2 3 23 19 9 10 16 11 12 15 25 27 24 28 20 22 21 30 31 17 14 14 35 36 32 26 13 18 5 4 6 7 8 7-2 7-1 7-5 7-4 7-3 7-6 43 42 41 33 34 37 40 39 44 38 29 ILLUSTRA TED PA R T S BREAKDOWN NTH150-2 150,000 BTU/HR MODEL Motor and Pump Assembly 10-1 10-2 10-3 10-4 10-5 10-6 10-7 10-8 10-9 10-10 10-11 10-12 10-18 10-1[...]

  • Page 23

    23 105787 OWNER’S MANUAL KEY PART NO. NUMBER DESCRIPTION QTY. 1 098511-257 Upper Shell 1 2 102432-01 Screw/Lockwasher, 1/2" 8 3 098512-66 Combustion Chamber 1 4 103154-05 Photocell Bracket 1 5 M10908-2 Screw, #6-32 x 3/8" 2 6 M16656-24 Photocell Assembly 1 7 ** Burner Strap Assembly 1 7-1 100735-24 Nozzle Assembly 1 7-2 102548-05 Ignito[...]

  • Page 24

    24 105787 POR T ABLE FORCED AIR HEA TERS WHEELS AND HANDLES 100,000 AND 150,000 BTU/HR MODELS KEY PART PART 100,000 Btu/Hr 150,000 Btu/Hr NO. NUMBER DESCRIPTION QTY. QTY. 1 HA2203 Handles 2 — HA2204 Handles — 2 2 M12345-33 Screw, #10-24 x 1 3 / 4 "8 8 3 M12342-3 Wheel Support Frame 1 — M12831-3 Wheel Support Frame — 1 4 NTC-3C Hex Nut,[...]

  • Page 25

    25 105787 OWNER’S MANUAL Output Rating (Btu/Hrkw) 35,000(10) 50,000(15) 70,000(20) 100,000(30) 150,000(44) Fuel Use Only Kerosene or No. 1 Fuel Oil Fuel Tank Capacity (U.S. Gal./Liters) 3.0/11.4 5.0/18.9 5.0/18.9 9.0/34 13.5/51.1 Fuel Consumption (Gal. Per Hr./ Liters Per Hr.) .28/1.1 .37/1.40 .52/1.97 .79/3.0 1.1/4.1 Electric Requirements 240 V[...]

  • Page 26

    26 105787 POR T ABLE FORCED AIR HEA TERS ACCESSORIES Purchase accessories from your local dealer. HEAVY DUTY WHEELS AND HANDLE KIT - HA1202 For heavy duty applications. Makes your heater even more portable and convenient. For 35/50/70,000 Btu/Hr models. AIR GAUGE KIT - HA1180 For all models. Special tool to check pump pressure. STANDARD WHEELS AND [...]

  • Page 27

    27 105787 OWNER’S MANUAL EC CONFORMITY DECLARA TION NU-T OOL Group Carcr oft Industrial Estate, Adwic k-Le-Street Doncoster KN6 7DU , England Manufacturer: DESA International, Inc. 2701 Industrial Drive Bowling Green, KY 42101 U .S.A. Ker osene P ortable Forced Air Heater s Model Numbers: NTH35-2, NTH50-2, NTH70-2, NTH100-2, NTH150-2 It is declar[...]

  • Page 28

    W ARRANTY INFORMA TION WARRANTIES INCLUDING THOSE OF MERCHANTABIL- ITY AND FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED TO THE DURATION OF THIS EXPRESS WAR- RANTY. Any transportation charges, costs of installation, duty, taxes or any other charges whatsoever must be borne by the user. NU-TOOL's obligation under this limited Warranty shall not [...]