Desa RM200T Owner'S Manual Download Page 5

5

103607

OWNER’S MANUAL

THEORY OF
OPERATION

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.
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 causes the heater to shut down if the
flame goes out.

Figure 3 - Cross Section Operational View

Fuel
Filter

Air For Fuel
System

Combustion
Chamber

Clean
Heated
Air Out

Spark
Plug

Nozzle

Fuel
Tank

Air For Combustion
And Heating

Fuel

Air
Intake
Filter

Cool Air
In

Air
Output
Filter

Burner
Head

Motor

Fan

Electronic
Ignitor

Air Line
To Burner

Air Pump

OPERATION

TO STOP HEATER

Unplug extension cord from outlet.

TO RESTART HEATER

1.

Wait two minutes after stopping heater.

2.

Repeat steps under To Start Heater.

 WARNING: Review and un-

derstand the warnings in the
Safety Information section, page
2. They are needed to safely op-
erate this heater. Follow all local
codes when using this heater.

TO START HEATER

1.

Follow all ventilation and safety
information.

2.

Fill fuel tank with kerosene or No. 1
fuel oil.

3.

Attach fuel cap.

4.

Plug power cord of heater into three-
prong, grounded extension cord. Exten-
sion cord must be at least six feet long.

Figure 4 - Flame-out Control Reset Button

Flame-out
Control
Reset
Button

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 out-
let. Adjust thermostat to desired setting.
If heater does not start, thermostat set-
ting may be too low. Turn thermostat
knob to higher position to start heater.
If thermostat is in HIGH position and
heater still will not start, push in flame-
out control reset button (see Figure 4).

Note:

 A cold heater may affect the ther-

mostat setting. This thermostat is a gen-
eral-heating control. It is not intended
for precise temperature control. Adjust
thermostat until heater cycles at the
desired setting.

Summary of Contents for RM200T

Page 1: ... IMPORTANT Read and understand this manual before assembling start ing or servicing heater Improper use of heater can cause serious injury Keep this manual for future reference PORTABLE FORCED AIR HEATER WITH BUILT IN THERMOSTAT OWNER S MANUAL ...

Page 2: ...of ignition excep tion the fuel reservoir integral with the heater unit g Whenever possible fuel storage shall be confined to areas where floor penetrations do not permit fuel to drip onto or be ignited by a fire at lower elevation h Fuel storage shall be in accordance with the federal state or local au thority having jurisdiction Never use heater where gasoline paint thinner or other highly flamm...

Page 3: ...rom carton 3 Check items for shipping damage If heater is damaged promptly inform dealer where you bought heater PRODUCT IDENTIFICATION UNPACKING Figure 1 RM200T Model Lower Shell Hot Air Outlet Fan Guard Fuel Tank Flame out Control Reset Button Side Cover Fuel Cap Upper Shell Power Cord Thermostat Knob ...

Page 4: ...ront Handle Rear Handle Wheel Support Frame Wheel Extended Hub Hot Air Outlet Fuel Tank Flange Screw Nut Cap Nut Axle Air Inlet Figure 2 Wheel and Handle Assembly 2 Place cap nuts on axle ends Gently tap with hammer to secure 3 Place heater on wheel support frame Make sure air inlet end rear of heater is over wheels Line up holes on fuel tank flange with holes on wheel support frame 4 Place handle...

Page 5: ...ter 2 Repeat steps under To Start Heater WARNING Review and un derstand the warnings in the Safety Information section page 2 They are needed to safely op erate this heater Follow all local codes when using this heater TO START HEATER 1 Follow all ventilation and safety information 2 Fill fuel tank with kerosene or No 1 fuel oil 3 Attach fuel cap 4 Plug power cord of heater into three prong ground...

Page 6: ...ug Prop erly 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 Usingoldfuelcoulddamageheater PREVENTATIVE MAINTENANCE SCHEDULE How Often Flush every 150 200 hours of operati...

Page 7: ...ap 3 Dirty fuel filter 4 Dirt in nozzle 5 Water in fuel tank 6 Bad fuel valve 1 See Pump Pressure Adjustment page 8 2 See Spark Plug page 10 3 See Fuel Filter page 9 4 See Nozzle page 10 5 Drain and flush fuel tank with clean kerosene See Storing Transporting or Shipping page 6 6 See Fuel Valve page 9 WARNING Highvoltage Motor does not start when heater is plugged in fan rotates slowly or does not...

Page 8: ...l shock can occur Upper Shell Screw Fan Setscrew Motor Shaft Motor Flush Figure 6 Fan Cross Section Figure 7 Air Output Air Intake and Lint Filters AIR OUTPUT AIR INTAKE AND LINT FILTERS 1 Remove upper shell see Upper Shell Removal 2 Remove filter end cover screws using 5 16 nut driver 3 Remove filter end cover 4 Replace air output and lint filters 5 Wash or replace air intake filter see Preventat...

Page 9: ...Disconnect red and white wires from fuel valve see Figure 11 5 Using 1 4 nut driver remove 2 screws lockwashers holding fuel valve and bracket to lower shell see Figure 11 Save these screws lockwashers 6 Using 1 4 nut driver remove 2 screws holding fuel valve to bracket Save these screws 7 Attach new fuel valve to bracket with 2 screws 8 Install new fuel valve and bracket on lower shell with 2 scr...

Page 10: ...ark plug wire to spark plug 8 Replace fan see Fan page 8 9 Replace fan guard and upper shell see Upper Shell Removal page 8 Figure 13 Spark Plug Gap Figure 12 Spark Plug Removal Figure 14 Acceptable Range For Side Electrode SERVICE PROCEDURES Continued Spark Plug Wire Spark Plug Burner Head Wave Spring Washer Gap Bend Here to Adjust Gap 270 ACCEPTABLE RANGE FOR SIDE ELECTRODE Side Electrode Figure...

Page 11: ...ompressed air 8 Install insert and rotor 9 Check gap on rotor Adjust to 003 004 if needed see Figure 18 Note Rotaterotoronefullturntoinsurethe gap is 003 004 at tightest position Ad just if needed 10 Install blades pump plate air filters and filter end cover 11 Replace fan guard and upper shell 12 Adjust pump pressure see Pump Pres sure Adjustment page 8 Note If rotor is still binding proceed as f...

Page 12: ... 35 36 23 14 13 40 39 17 18 32 37 38 43 42 49 50 44 48 47 46 ILLUSTRATED PARTS BREAKDOWN RM200T Motor and Pump Assembly 7 1 7 8 Burner Head Assembly 7 7 7 3 7 4 7 5 7 6 10 16 10 17 10 15 10 18 10 14 10 13 10 12 10 11 10 10 10 9 10 8 10 7 10 6 10 5 10 4 10 3 10 2 10 1 7 2 44 4 44 4 44 3 44 5 44 2 44 1 Fuel Valve Assembly 44 7 44 8 44 6 ...

Page 13: ...2482 01 Ignitor Kit 1 18 M11084 29 Screw 10 16 x 3 4 2 19 M51345 03 Fuel Line 1 20 M51150 01 Fuel Filter 1 21 M51345 04 Fuel Line Tube 1 22 M10990 3 Rubber Bushing 1 23 M50814 03 Airline 1 24 098511 230 Lower Shell 1 25 M50104 03 Bushing 2 See OPTIONAL ACCESSORIES Not available as an assembly 26 M50104 01 Bushing 2 27 M11084 27 Screw 10 16 x 1 2 6 28 M11271 8 Clip Nut 8 29 M10908 14 Screw 8 32 x 3...

Page 14: ... 04 Wheel 2 6 M28526 Cap Nut 2 7 M16801 2 Axle 1 5 7 6 TECHNICAL SERVICE Output Rating Btu Hr 200 000 Fuel Use Only Kerosene or No 1 Fuel Oil Fuel Tank Capacity U S Gal 13 5 Fuel Consumption Gal Per Hr 1 4 Pump Pressure PSI 6 0 Electric Requirements 120 V 60 Hz Amperage Normal Run 4 5 Hot Air Output CFM 600 Motor RPM 3450 Motor HP 1 4 Shipping Weight Approx Lbs 77 Heater Weight without Fuel Approx...

Page 15: ... purchase date Usually we will ask you to return the defec tive part to the factory PARTS NOT UNDER WARRANTY Contact authorized dealers of this product If they cannot supply original replacement part s call DESA International s Parts Department at 1 800 972 7879 for referral information When calling DESA International have ready model number of your heater the replacement part number REPLACEMENT P...

Page 16: ...rdance with instructions This warranty is extended only to the original retail purchaser when proof of purchase is provided This warranty covers only the cost of parts and labor required to restore the product to proper operating condition Transportation and incidental costs associated with warranty repairs are not reimbursable under this warranty Warranty service is available only through authori...

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