Page 2 - PORTABLE FORCED AIR HEATERS; WARNINGS; DANGER: Carbon monoxide
2 105843 PORTABLE FORCED AIR HEATERS D20N, D30N AND D44N MODELS SAFETYINFORMATION WARNINGS IMPORTANT: Read this Owner’sManual carefully and completelybefore trying to assemble, oper-ate, or service this heater. Im-proper use of this heater cancause serious injury or death fromburns, fire, explosion,...
Page 3 - OWNER’S MANUAL; UNPACKING; Remove all items from carton.; FUELS; WARNING: Use only kerosene; • clogged fuel filter and nozzle
3 105843 OWNER’S MANUAL Side Cover LowerShell Fuel Cap Hot Air Outlet Upper Shell Power Cord Fuel Tank Fan Guard Lower Shell Side Cover Fuel Tank Upper Shell Hot Air Outlet Fan Guard Air FilterEnd Cover Fuel Cap PowerCord ON/OFF Switchwith Light ON/OFF Switchwith Light PRODUCTIDENTIFICATION Figure 1...
Page 4 - ASSEMBLY; TOOLS NEEDED; • Medium Phillips Screwdriver; VENTILATION; one of the following:
4 105843 PORTABLE FORCED AIR HEATERS D20N, D30N AND D44N MODELS ASSEMBLY These models are furnished with wheels andhandles. Wheels, handles, and the mountinghardware are found in the shipping carton. TOOLS NEEDED • Medium Phillips Screwdriver • 3/8" Open or Adjustable Wrench • Hammer 1. S l i d ...
Page 5 - OPERATION; TO START HEATER; The air pump forces air; TO STOP HEATER; Repeat steps under To Start Heater.
5 105843 OWNER’S MANUAL OPERATION WARNING: Review and un- derstand the warnings in theSafety Information section, page2. They are needed to safely op-erate this heater. Follow all localcodes when using this heater. TO START HEATER 1. Follow all ventilation and safety infor-mation. 2. Fill fuel tank ...
Page 6 - WARNING: Never service heater; Wiring Diagram, page 21; TROUBLESHOOTING; WARNING: Never service heater while it is plugged in, operating, or
6 105843 PORTABLE FORCED AIR HEATERS D20N, D30N AND D44N MODELS STORING,TRANSPORTING,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, removedrain plug to drain all fuel. If hea...
Page 7 - REMEDY; Continued; FAULT CONDITION
7 105843 OWNER’S MANUAL REMEDY 1. Fill tank with kerosene2. See Pump Pressure Adjustment, page 103. See Fuel Filter, page 84. See Nozzle Assembly, page 115. Drain and flush fuel tank with clean kerosene. See Storing, Transporting, orShipping, page 6 6. Check electrical connections. See Wiring Diagra...
Page 8 - UPPER SHELL REMOVAL; Lift upper shell off.; Pull rubber fuel line off fuel filter neck.; FUEL FILTER; Pull upper fuel line off fuel filter neck.; WARNING: Never service
8 105843 PORTABLE FORCED AIR HEATERS D20N, D30N AND D44N MODELS Figure 9 - Fuel Filter Removal, D20N Model UPPER SHELL REMOVAL 1. Remove screws and lock washers alongeach side of heater using 5/16" nut-driver. These screws attach upper andlower shells together. 2. Lift upper shell off. 3. Remove...
Page 9 - IGNITOR; CAUTION: Do not bend or strike; Route the ignitor wires back down
9 105843 OWNER’S MANUAL SERVICEPROCEDURES Continued Continued IGNITOR 1. Remove upper shell and fan guard (seepage 8). 2. Remove fan (see page 13). 3. Remove 4 side cover screws with a5/16" nut driver. Remove side cover(see Figure 9 or 10, page 8). 4. Disconnect ignitor wires (gray) fromignition...
Page 10 - Remove filter end cover.
10 105843 PORTABLE FORCED AIR HEATERS D20N, D30N AND D44N MODELS AIR OUTPUT, AIR INTAKE,AND LINT FILTERS 1. Remove upper shell (see page 8). 2. Remove filter end cover screws using5/16" nut-driver. 3. Remove filter end cover. 4. Replace air output and lint filters. 5. Wash or replace air intake ...
Page 11 - NOZZLE ASSEMBLY; Inspect nozzle seal for damage.; Hoses are not to be touching pho-
11 105843 OWNER’S MANUAL Continued SERVICEPROCEDURES Continued Fuel LineHose Nozzle/AdapterAssembly CombustionChamber Air LineHose Figure 18 - Removing Air and Fuel LineHoses (D30N Model Only) Nozzle/AdapterAssembly CombustionChamber Figure 20 - Removing Nozzle/AdapterAssembly Nozzle Face Nozzle Noz...
Page 12 - PUMP ROTOR; Remove filter end cover and air filters.
12 105843 PORTABLE FORCED AIR HEATERS D20N, D30N AND D44N MODELS PUMP ROTOR (Procedure if Rotor is Binding) 1. Remove upper shell (see page 8). 2. Remove filter end cover screws using5/16" nut-driver. 3. Remove filter end cover and air filters. 4. Remove pump plate screws using 5/16"nut-driv...
Page 13 - FAN; Remove fan from motor; WARNING: Unplug heater; Remove Old Assembly; CAUTION: Ignition control; Installing the New Assembly; CAUTION: Double check
13 105843 OWNER’S MANUAL FAN IMPORTANT: Remove fan from motor shaft before removing motor from heater.The weight of the motor resting on the fancould 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...
Page 14 - Motor and Pump Assembly
14 105843 PORTABLE FORCED AIR HEATERS D20N, D30N AND D44N MODELS 2 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 32 33 9-6 15 14 31 3 1 36 40 38 37 39 25 ILLUSTRATEDPARTSBREAKDOWN D20N MODEL Motor and Pump Assembly 12-11 12-18 12-17 12-16 12-15 12-14 12-...
Page 15 - PARTS LIST
15 105843 OWNER’S MANUAL PARTS LIST D20N MODEL This list contains replaceable parts used in your heater. When ordering parts, be sure toprovide the correct model and serial numbers (from the model plate), then the part numberand description of the desired part. KEY PART NO. NUMBER DESCRIPTION QTY. 1...
Page 20 - WHEELS AND HANDLES
20 105843 PORTABLE FORCED AIR HEATERS D20N, D30N AND D44N MODELS WHEELS AND HANDLES KEY PART PART D20N D30N D44N NO. NUMBER DESCRIPTION QTY. QTY. QTY. 1 HA2203 Handles — 2 — HA2204 Handles — — 2 097198-02 Handles 1 — — 2 M12345-33 Screw, #10-24 x 1 3 / 4 " 4 8 8 3 M12342-3 Wheel Support Frame — ...
Page 21 - SPECIFICATIONS; Ignition Control; ACCESSORIES
21 105843 OWNER’S MANUAL Output Rating (Btu/Hr) 70,000 110,000 150,000 Fuel Use Only Kerosene or No. 1 Fuel Oil Fuel Tank Capacity (U.S. Gal./Liters) 5.0/18.9 9.0/34 13.5/51.1 Fuel Consumption (Gal. Per Hr./Liters Per Hr.) .52/1.97 .79/3.0 1.1/4.1 Electric Requirements 230 V/50 Hz (Same All Models) ...
Page 22 - EC CONFORMITY DECLARATION
22 105843 PORTABLE FORCED AIR HEATERS D20N, D30N AND D44N MODELS EC CONFORMITY DECLARATION DESA Europe B.V. Innsbruckweg 144, 3047 AH Postbus 11158 3004 ED Rotterdam Holland Manufacturer: DESA International, Inc. 2701 Industrial Drive Bowling Green, KY 42101 U.S.A. Kerosene Portable Forced Air Heate...
Page 23 - NOTES
23 105843 OWNER’S MANUAL NOTES _______________________________________________________________________________________________ _______________________________________________________________________________________________ _____________________________________________________________________________...
Page 24 - WARRANTY INFORMATION; CERTIFICATE OF GENERAL; INTERNATIONAL; NOT A UPC
WARRANTY INFORMATION POSE. IN ANY EVENT IMPLIED WARRANTIES INCLUDINGTHOSE OF MERCHANTABILITY AND FITNESS FOR A PAR-TICULAR PURPOSE ARE LIMITED TO THE DURATION OFTHIS EXPRESS WARRANTY. Any transportation charges, costs of installation, duty, taxes or any other charges whatsoever must be borne by theu...