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Manafacture: Desa File size: 1.89 mb File name: 09ebec6f-f275-4454-edd8-3d4e0f69825c.pdf Language of manual:

Make certain these requirements are met prior to operating heater. Example: A 165 model heater requires one of the following: • a two-car garage door (16 ft. [4.88 m] wide opening) raised four inches (10.16 cm) • a single-car garage door (9 ft. [2.74 m] wide opening) raised seven inches (17.78 cm) • two, thirty-inch (76.20 cm) windows raised twelve inches (30.48 cm) OPERATION IMPORTANT: Review andunderstand the warnings in the Safety Information section, page 2. They are needed to safely operate this heater. Follow all local ordinances and codes when using this heater. 6 to 10 feet (1.8 to 3 meters) long, use 18AWG (0.75 mm2) rated cord 11 to 100 feet (3.3 to 30.5 meters) long, use 16 AWG (1.0 mm2) rated cord 101 to 200 feet (30.8 to 61 meters) long, use 14 AWG (1.5 mm2) rated cord 6. Plug extension cord into standard 120 volt/60 hertz, 3-prong grounded outlet. Note: Ignitor will preheat for five seconds, then heater will start. 7. For thermostat models 55T, 70T, 115T, and 165T, adjust thermostat knob to the desired setting. Note: A cold heater may affect the thermostat setting. This thermostat is a general-heating control. It is not intended for precise temperature control.Adjust thermostat until heater cycles at the desired setting. TO STOP HEATER Unplug extension cord from outlet. TO RESTART HEATER 1. Unplug extension cord from outlet and wait 10 seconds. (Wait two minutes if heater has been running.) 2. Repeat steps under To Start Heater. TO START HEATER 1. Follow all ventilation and safety information. 2. Fill fuel tank with kerosene, #1/#2 diesel/fuel oil, JET A or JP-8 fuels. 3. Attach fuel cap. 4. For thermostat models 55T, 70T, 115T, and 165T, turn thermostat knob clockwise to the high position. 5. Plug heater.s power cord into approved, grounded, three-wire extension cord. Extension cord must be at least six feet (1.8 meters) long. 111168-01A STORING, TRANSPORTING, OR SHIPPING Note: If shipping, transport companies require 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 sure all fuel is removed. 2. Replace drain plug if provided. 3. If any debris is noted in old fuel, add 1 or 2 quarts of clean kerosene to tank, stir, and drain again. This will prevent excess debris from clogging filters during future use. 4. Replace fuel cap or drain plug. Properly dispose of old and dirty fuel. Check with local automotive service stations that recycle oil. 5. If storing, store heater in dry place. Make sure storage place is free of dust and corrosive fumes. IMPORTANT: Do not store kerosene over summer months for use during next heating season. Using old fuel could damage heater. PREVENTATIVE MAINTENANCE SCHEDULE WARNING: To avoid risk of burn and electrical shock, never attempt to service heater while it is plugged in, operating, or hot. Item How Often How To Fuel tank Flush every 150-200 hours See Storing, Transporting, or of operation or as needed Shipping Air output and lint filters Replace every 500 hours of See Air Output, Air Intake, operation or once a year and Lint Filters, page 10 Air intake filter Wash and dry with soap and See Air Output, Air Intake, water every 500 hours of and Lint Filters, page 10operation or replace as needed Fuel filter Clean twice a heating season See Fuel Filter, page 11 or replace as needed Ignitor None required Fan blades Clean every season or See Fan, page 9as needed Motor Not required/permanentlylubricated 111168-01A TROUBLESHOOTING WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. FAULT CONDITION POSSIBLE CAUSE REMEDY Motor does not start five seconds 1. No power to heater 1. Check circuit breaker in elecafter heater is plugged in trical panel 2. Thermostat setting is too low 2. Turn thermostat knob to a higher setting WARNING: High voltage! 3. Bad electrical connection between motor and ignition control assemblyor ignition control assembly and power cord 4. Binding pump rotor 5. Defective ignition control assembly 6. Defective motor 3. Check all electrical connections. See Wiring Diagrams, page 15 4. If fan does not turn freely, see Pump Rotor, page 14 5. Replace ignition control assembly 6. Replace motor Motor starts and runs but heater 1. No fuel in tank does not ignite 2. Pump pressure incorrect 3. Dirty fuel filter 4. Obstruction in nozzle 5. Water in fuel tank 1. Fill tank with kerosene 2. See Pump Pressure Adjustment, page 10 3. See Fuel Filter, page 11 4. See Nozzle Assembly, page 12 5. Drain and flush fuel tank with clean kerosene. See Storing, Transporting, or Shipping, page 7 WARNING: High voltage! 6. Bad electrical connection between ignitor and ignition control assembly 7. Defective ignitor 8. Defective ignition control assembly 6. Check electrical connections. See Wiring Diagrams , pag...

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