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Desa R110M3 Owner's Manual

Portable forced
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PORTABLE
FORCED
AIR HEATERS
OWNER'S MANUAL
Heater Sizes: 70,000 110,000 150,000 BTU/Hr
Featuring: Built-In Thermostat with LCD Display
IMPORTANT
Read and understand this manual before assembling, starting, or servicing
heater. Improper use of heater can cause serious injury. Keep this manual
for future reference.
®
G 004
ARL LOGO

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Summary of Contents for Desa R110M3

  • Page 1 PORTABLE FORCED AIR HEATERS OWNER’S MANUAL Heater Sizes: 70,000 110,000 150,000 BTU/Hr Featuring: Built-In Thermostat with LCD Display IMPORTANT Read and understand this manual before assembling, starting, or servicing heater. Improper use of heater can cause serious injury. Keep this manual for future reference.

  • Page 2: Table Of Contents

    SECTION PAGE CONTENTS Safety Information ................. 2 Product Identification ..............4 Unpacking ..................5 Assembly ..................5 Theory of Operation ..............6 Fuels ....................6 Ventilation ..................7 Operation Without Thermostat ............. 7 Operation With Thermostat ............8 Storage ................... 10 Preventative Maintenance Schedule ..........
  • Page 3 SAFETY • Use only kerosene or No. 1 fuel oil to avoid risk of fire or explosion. Never INFORMATION use gasoline, naphtha, paint thinners, alcohol, or other highly flammable fuels. • Fueling Continued a) Personnel involved with fueling shall be qualified and thoroughly familiar with the manufacturer's instructions and applicable federal, state, and local regulations regarding the safe fueling of heating units.

  • Page 4: Product Identification

    PRODUCT IDENTIFICATION Hot Air Outlet Handle Upper Shell Lower Shell Fan Guard Air Filter End Cover Fuel Cap Side Cover Flame Control Display Fuel Tank (see Figure 3, below) Power Cord Figure 1 - 70,000 BTU/Hr Model Hot Air Outlet Upper Shell Lower Shell...

  • Page 5: Unpacking

    UNPACKING 1. Remove all packing items applied to heater for shipment. 2. Remove all items from carton. 3. Check items for shipping damage. If heater is damaged, promptly inform dealer where you bought heater. ASSEMBLY These models are furnished with wheels and a front handle. Some models are furnished with a rear handle also.

  • Page 6: Theory Of Operation

    THEORY OF The Fuel System: The air pump forces air through the air line. The air is then pushed through the burner head nozzle. This air causes fuel to lift from the tank. OPERATION A fine mist of fuel is sprayed into the combustion chamber. The Air System: The motor turns the fan.

  • Page 7: Ventilation

    VENTILATION WARNING Follow the minimum fresh, outside air ventilation requirements. If proper fresh, outside air ventilation is not provided, carbon monoxide poisoning can occur. Provide proper fresh, outside air ventilation before running heater. Provide a fresh air opening of at least three square feet for each 100,000 BTU/Hr rating.

  • Page 8: Operation With Thermostat

    To Stop Heater OPERATION Press (OFF) button. WITHOUT THERMOSTAT OFF Button Continued Figure 7 - OFF Button Location To Restart Heater Repeat steps under To Start Heater, page 7. OPERATION WARNING WITH Review and understand the warnings in the Safety THERMOSTAT Information Section.
  • Page 9 7. Display alternates between “th” and the temperature selected. Heater has accepted the new thermostat setting. Press button to activate the new thermostat setting and start heater operation with thermostat. Alternating Between “th” and the Temperature Selected Figure 9 - NOTE: This thermostat has a 6˚F differential.

  • Page 10: Storage

    STORAGE 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 sure all fuel is removed. 2.

  • Page 11: Troubleshooting

    TROUBLE- WARNING SHOOTING Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. OBSERVED FAULT DISPLAY SCREEN POSSIBLE CAUSE REMEDY Heater ignites, but Out of fuel Fill tank with kerosene. flame control shuts off Wrong pump pressure See Pump Pressure Adjust- heater after a short...
  • Page 12 Display shows “HI volts”. Shorted photocell wires or Correct wiring or replace defective photocell photocell. Display shows “C6”. Call DESA International's Technical Service Department at 1-800-323-5190 if you have any questions on trouble- shooting or operating your portable forced air heater. 101697...

  • Page 13: Service Procedures

    SERVICE WARNING PROCEDURES Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. Upper Shell Removal Upper Upper Shell Shell 1. Remove screws along each side of heater using 5/16" nut-driver. Guard These screws attach upper and Guard lower shells together.

  • Page 14: Air Output, Air Intake, And Lint Filters

    Air Intake Air Output, Air Intake, Filter and Lint Filters Filter End Cover 1. Remove upper shell (see Guard Upper Shell Removal, page 13). 2. Remove filter end cover screws using 5/16" nut- driver. 3. Remove filter end cover. 4. Replace air output and lint Lint Filter filters.

  • Page 15: Fuel Filter

    Fuel Filter, Bushing, Fuel Filter and Lower Fuel Line Fuel Filter 1. Remove side cover screws using 5/16" nut-driver. 2. Remove side cover. 3. Pull upper fuel line off fuel filter neck. 4. Carefully pry bushing, fuel filter, and lower fuel line (110,000 and 150,000 BTU/Hr models only) out of fuel tank.

  • Page 16: Nozzle

    Nozzle Burner Head 1. Remove upper shell (see page Combustion Spark Plug .070" Thick 13). Chamber Wire Flat Washer 2. Remove fan (see page 13). 3. Remove fuel and air line hoses from burner head. 4. Remove spark plug wire from Screw spark plug.

  • Page 17: Pump Rotor

    Pump Rotor Blade Air Intake (Procedure if rotor is binding) Pump Filter Plate 1. Remove upper shell (see page Filter End Cover 13). 2. Remove filter end cover screws Fan Guard using 5/16" nut-driver. 3. Remove filter end cover and air filters.

  • Page 18: Specifications

    SPECIFICATIONS 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.) 13.5 Fuel Consumption (Gal. Per Hr.) 1.10 Electric Requirements 120 V/60 Hz (Same All Models) Amperage (Normal Run) Hot Air Output (CFM) WIRING Flame Control DIAGRAM...

  • Page 19: Maintenance Kits

    If they can not supply these accessories or parts, either contact your nearest Parts Central or DESA International. Parts STANDARD WHEELS AND Centrals are listed in the HANDLE KIT - HA1206 Makes heater even more Authorized Service Center portable and convenient.

  • Page 20: Warranty And Repair Service

    A defect may be caused by faulty materials or workman- workmanship for six (6) months from the date of first ship. If so, DESA International will repair or replace the purchase when operated and maintained in accordance heater without charge.

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