Desa ARL B50G Owner'S Manual Download Page 7

7

102016

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.

WARNING

!

PREVENTATIVE

MAINTENANCE

SCHEDULE

Never service heater while it is plugged in, operating, or
hot. Severe burns and electrical shock can occur.

Item

How Often

How To

Fuel tank

Flush every 150-200 hours

See Storing, Transporting,
   or Shipping,
 above.

  of operation or as needed.

Air output and

Replace every 500 hours of

See Air Output, Air Intake,

lint filters

  operation or once a year.

   and Lint Filters, page 9.

Air intake

Wash and dry with soap and

See Air Output, Air Intake,

filter

  water every 500 hours of op-

  and Lint Filters, page 9.

  eration or replace as needed.

Fuel filter

Clean twice a heating season

See Fuel Filter, page 10.

   or replace as needed.

Spark plug

Clean and regap every 600

See Spark Plug, pages 10

  hours operation or replace

  and 11.

  as needed.

Fan blades

Clean each season or as needed. See Fan, page 9 .

Motor

Not required/permanently lubricated

Summary of Contents for ARL B50G

Page 1: ...ER S MANUAL IMPORTANT Read and understand this manual before assembling starting or servic ing heater Improper use of heater can cause serious injury Keep this manual for future reference Heater Models B50G and REM50B ARL LOGO G 004 ...

Page 2: ...y before trying to assemble operate or service this heater Improper use of this heater can cause serious injury or death from burns fire explosion electrical shock and carbon monoxide poisoning Carbon Monoxide Poisoning Early signs of carbon monoxide poisoning resemble the flu with headaches dizziness and or nausea If you have these signs the heater may not be working properly Get fresh air at once...

Page 3: ...r where gasoline paint thinner or other highly flammable vapors are present Follow all local ordinances and codes when using heater Heaters used in the vicinity of tarpaulins canvas or similar enclosure materials shall be located a safe distance from such materials The recommended mini mum safe distance is 10 feet It is further recommended that these enclosure materials be of a fire retardant natu...

Page 4: ...to lift from the tank A fine mist of fuel is sprayed into the combustion chamber The Air System The motor turns the fan The fan pushes air into and around the combustion chamber This air is heated and provides a stream of clean hot air The Ignition System The electronic ignitor sends voltage to the spark plug The spark plug ignites the fuel and air mixture The Flame Out Control System This system ...

Page 5: ...e or explosion Never use gasoline naphtha paint thinners alcohol or other highly flammable fuels WARNING VENTILATION 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 at least a three square foot opening of fresh outside a...

Page 6: ...rd must be at least six feet long Extension Cord Wire Size Requirements 6 to 10 feet long use 18 AWG rated cord 11 to 100 feet long use 16 AWG rated cord 101 to 200 feet long use 14 AWG rated cord 5 Plug extension cord into standard 120 volt 60 hertz three hole grounded outlet Heater will start when extension cord is plugged into outlet If not push in flame out control reset button see Figure 3 Fi...

Page 7: ...s IMPORTANT Do not store kerosene over summer months for use during next heating season Using old fuel could damage heater WARNING PREVENTATIVE MAINTENANCE SCHEDULE Never service heater while it is plugged in operating or hot Severe burns and electrical shock can occur Item How Often How To Fuel tank Flush every 150 200 hours See Storing Transporting or Shipping above of operation or as needed Air...

Page 8: ... but motor runs for a short period of time Wrong pump pressure Carbon deposits on spark plug and or improper gap Dirty fuel filter Dirt in nozzle Water in fuel tank Electronic ignitor not grounded Bad electronic ignitor Motor does not start when heater is plugged in fan rotates slowly or does not turn Flame out control not reset Solid state relay not allowed to reset Binding pump rotor See Pump Pr...

Page 9: ...uard and upper shell IMPORTANT Do not oil filters Upper Shell 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 above 2 Use 1 8 allen wrench to loosen set screw which holds fan to motor shaft 3 Slip fan off motor shaft 4 Clean fan using soft cloth mois tened with kerosene or sol...

Page 10: ... 16 open end wrench 8 Remove burner strap from spark plug 9 Clean and regap spark plug electrodes to 055 gap 10 Replace burner strap onto spark plug Rotate burner strap to position spark plug electrodes see Figure 12 page 11 11 Tighten spark plug with spark plug mounting nut 12 Release hex body of spark plug from vise Fuel Filter 1 Remove side cover screws using 5 16 nut driver 2 Remove side cover...

Page 11: ...move 5 Place plastic hex body into vise and lightly tighten 6 Carefully remove nozzle from the nozzle adapter using 5 8 socket wrench 7 Blow compressed air through face of nozzle This will free any dirt in nozzle area 8 Inspect nozzle seal for damage 9 Replace nozzle into nozzle adapter until nozzle seats Tighten 1 3 turn more using 5 8 socket wrench 40 45 inch pounds 10 Attach nozzle assembly to ...

Page 12: ...tor 16 Perform steps 10 through 12 above Output Rating Btu Hr 50 000 Fuel Use Only Kerosene or No 1 Fuel Oil Fuel Tank Capacity U S Gal 4 0 Fuel Consumption Gal Per Hr 40 Electric Requirements 120 V 60 Hz Amperage Normal Run 2 0 Motor RPM 1725 Hot Air Output CFM 175 Air Pump Pressure PSI 3 4 Shipping Weight Approximate Pounds 35 Heater Weight Without Fuel Approximate Pounds 30 SPECIFICATIONS WIRIN...

Page 13: ...lacement part number REPLACEMENT PARTS ACCESSORIES Purchase accessories and parts from your nearest dealer or service center If they can not supply these accessories or parts either contact your nearest Parts Central or DESA Interna tional for information Parts Centrals are listed in the Authorized Service Center booklet supplied with heater DESA International P O Box 90004 Bowling Green KY 42102 ...

Page 14: ...OTOR PUMP 30 EAI EBI 12 1 12 2 12 3 12 4 12 5 12 6 12 7 12 8 12 9 12 10 12 11 12 13 12 18 12 17 12 16 12 15 12 14 12 12 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 9 1 9 2 9 3 9 4 9 5 17 19 21 22 23 24 25 26 27 30 31 32 33 36 37 38 39 28 29 34 35 40 16 18 20 ...

Page 15: ... 12 16 M50016 Elbow 90 1 12 17 M8643 2 Blade 4 12 18 FHPF3 6C Screw 10 32 x 3 4 2 13 M51105 01 Fan Guard 1 14 098219 18 Power Cord 1 15 M11143 1 Strain Relief Bushing 1 16 NTC 4C Hex Lock Nut 1 4 20 2 See OPTIONAL ACCESSORIES Not available as an assembly 17 M11084 26 Screw 10 16 x 3 8 2 18 M50631 Rubber Bumper 2 19 M50899 03AA Side Cover 1 20 101205 01 Motor Bracket 1 21 M30865 02 Bushing 2 22 M11...

Page 16: ...to restore the product to proper operating condition Transportation and incidental costs associ ated with warranty repairs are not reimbursable under this warranty Warranty service is available only through authorized dealers and service centers This warranty does not cover defects resulting from misuse abuse negligence accidents lack of proper maintenance normal wear alteration modification tampe...

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