Desa ARL B50H Owner'S Manual Download

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PORTABLE

FORCED

AIR HEATER

OWNER’S MANUAL

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.

ARL LOGO

G 004

Models: B50H and REM50C

Heater Size: 50,000 Btu/Hr

Summary of Contents for ARL B50H

Page 1: ...AL 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 ARL LOGO G 004 Models B50H and REM50C Heater Size 50 000 Btu Hr ...

Page 2: ... 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 Have h...

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: ... air through the air line The air is then pushed through the nozzle This air causes fuel 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 ignition control assembly provides power to the ign...

Page 5: ...e extra fresh air if more heaters are being used Example A 50 000 Btu Hr heater requires one of the following a 16 foot two car garage door raised two inches a 9 foot single car garage door raised three inches two thirty inch windows raised five inches Review and understand the warnings in the Safety Informa tion Section pages 2 and 3 They are needed to safely operate this heater Follow all local ...

Page 6: ...ENTATIVE MAINTENANCE SCHEDULE Never service heater while it is plugged in operating or hot Severe burns and electrical shock can occur WARNING STORING TRANSPORTING OR SHIPPING Note If shipping transport companies require fuel tanks to be empty 1 Drain fuel tank Drain fuel through fuel cap opening Be sure all fuel is re moved 2 If any debris is noted in old fuel add 1 or 2 quarts of clean kerosene ...

Page 7: ...tive ignition control assembly Fill tank with kerosene See Pump Pressure Adjust ment pages 9 See Fuel Filter page 9 See Nozzle page 10 Drain and flush fuel tank with clean kerosene See Storing Transporting or Shipping page 6 Check electrical connections See Wiring Diagram page 11 Replace ignitor Replace ignition control assembly WARNING High voltage Pump pressure incorrect Dirty air intake air out...

Page 8: ...s tened with kerosene or solvent 5 Dry fan thoroughly 6 Replace fan on motor shaft Place fan hub flush with end of motor shaft see Figure 4 7 Place setscrew on flat of shaft Tighten setscrew firmly 40 50 inch pounds 8 Replace fan guard and upper shell Air Output Air Intake and Lint Filters 1 Remove upper shell see above 2 Remove filter end cover screws using 5 16 nut driver 3 Remove filter end cov...

Page 9: ...sure 5 Remove pressure gauge Replace pressure gauge plug in filter end cover Figure 6 Pressure Gauge Plug Removal Relief Valve Pressure Gauge Plug Figure 7 Adjusting Pump Pressure Pressure Gauge Fuel Filter 1 Remove 4 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 and fuel filter out of fuel tank 5 Wash fuel filter wi...

Page 10: ...ocedure 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 Check for debris in pump If debris is found blow out with compressed air 8 Install insert and rotor 9 Check gap on rotor Adjust to 003 004 ...

Page 11: ...eler Gauge Blade Rotor Gap Adjusting Screw Gap Adjusting Screw Figure 13 Gap Adjusting Screw Locations SPECIFICATIONS 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 Pump Pressure psi 3 6 Shipping Weight Approximate Pounds...

Page 12: ... part s call DESA International s Technical Service Dept at 1 800 323 5190 When calling DESA International have ready your name your address model number of your heater how heater was malfunctioning purchase date Usually we will ask you to return the defective part to the factory Parts Not Under Warranty Contact authorized dealers of this product If they can t supply original replacement part s ca...

Page 13: ...Green KY 42102 9004 1 800 972 7879 Parts Department AIR GAUGE KIT HA1180 Special tool to check pump pressure THERMOSTAT KIT HA1210 Keeps your building at the temperature you select day and night Helps economize on fuel Makes heater even more portable and convenient Easy to assemble STANDARD WHEELS AND HANDLE KIT HA1206 HEAVY DUTY WHEELS AND HANDLE KIT HA1202 For heavy duty applica tions Makes your...

Page 14: ...otor and Pump Assembly 12 11 12 18 12 17 12 16 12 15 12 14 12 13 12 12 12 10 12 1 12 2 12 3 12 4 12 5 12 6 12 7 12 8 12 9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 9 1 9 2 9 3 9 4 9 5 17 18 19 20 21 22 23 24 25 26 27 28 29 30 34 35 36 32 33 31 ...

Page 15: ...ew 10 32 x 1 1 8 6 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 31 Power Cord 1 15 M11143 1 Strain Relief Bushing 1 16 NTC 4C Hex Lock Nut 1 4 20 2 17 M11084 26 Screw 10 16 x 3 8 4 KEY PART NO NUMBER DESCRIPTION QTY 18 M50631 Rubber Bumper 2 19 097461 03AA Side Cover 1 20 101205 01 Motor Bracket 1 21 M30865 02 Bushing 2 22 M112...

Page 16: ...A International warrants this product and any parts thereof to be free from defects in materials and workmanship for six 6 months from the date of first purchase when operated and maintained in accordance withinstructions Thiswarrantyisextendedonlytothe original retail purchaser when proof of purchase is provided This warranty covers only the cost of parts and labor required to restore the product...

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