DESA 110, 115, 150, 155, 165 User guide

PORTABLE FORCED

TM

AIR HEATERS

OWNER’S MANUAL

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Heater Sizes: 40,000 55,000 60,000 70,000 110,000 115,000

150,000 155,000 165,000 and 200,000 Btu/Hr Models

H.S.I. Series

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.

TABLE OF CONTENTS

SAFETY INFORMATION ............................................................ 2

PRODUCT IDENTIFICATION ..................................................... 3

UNPACKING............................................................................... 3

THEORY OF OPERATION ......................................................... 4

FUELS......................................................................................... 4

VENTILATION............................................................................. 4

ASSEMBLY................................................................................. 5

OPERATION ............................................................................... 5

OPERATION WITH PORTABLE GENERATOR.......................... 6

STORING, TRANSPORTING, OR SHIPPING............................ 6

PREVENTATIVE MAINTENANCE SCHEDULE ......................... 6

Fill In For Your Records
Model No. ___________________

(Located on side panel)

TROUBLESHOOTING ................................................................ 7

SERVICE PROCEDURES .......................................................... 8

TECHNICAL SERVICE ............................................................. 15

REPLACEMENT PARTS .......................................................... 15

SPECIFICATIONS .................................................................... 16

WIRING DIAGRAMS................................................................. 16

ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST ....... 18

WHEELS AND HANDLES ........................................................ 24

ACCESSORIES ........................................................................ 25

OWNER'S REGISTRATION FORM .......................................... 27

WARRANTY AND REPAIR SERVICE ........................ Back Cover

Serial No. ___________________

(Located on fuel tank)

Date of Purchase: ______________

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®

SAFETY INFORMATION

2

SAFETY INFORMATION

WARNINGS

WARNING: This product contains and/or generates
chemicals known to the State of California to cause
cancer or birth defects, or other reproductive harm.

IMPORTANT: Read this owner’s manual carefully and
completely 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.

DANGER: Carbon monoxide poisoning may lead
to death!

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 heater serviced. Some people are more
affected by carbon monoxide than others. These include pregnant
women, persons with heart or lung disease or anemia, those under
the influence of alcohol, and those at high altitudes.

Make certain you read and understand all warnings. Keep this
manual for reference. It is your guide to safe and proper operation
of this heater.

• Use only kerosene, #1#2 diesel/fuel oil, JET A or JP-8 fuels to
avoid risk of fire or explosion. Never use gasoline, naphtha,
paint thinners, alcohol, or other highly flammable fuels.

• Fueling
a)Personnel involved with fueling shall be qualified and thor-

oughly familiar with the manufacturer's instructions and ap­plicable regulations regarding the safe fueling of heating units.

b)Only the type of fuel specified on the heater's data plate shall

be used.

c) All flame, including the pilot light, if any, shall be extin-

guished and the heater allowed to cool, prior to fueling.

d)During fueling, all fuel lines and fuel-line connections shall

be inspected for leaks. Any leaks shall be repaired prior to
returning the heater to service.

e)At no time shall more than one day's supply of heater fuel

be stored inside a building in the vicinity of the heater. Bulk
fuel storage shall be outside the structure.

f) All fuel storage shall be located a minimum of 762cm (25

feet) from heaters, torches, welding equipment, and similar
sources of ignition (exception: 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 authority hav-

ing jurisdiction.

• Use only the electrical voltage and frequency specified on
model plate.

• Heater must be grounded. Use only a properly grounded three­wire extension cord. Plug into grounded outlet only.

• Use only in areas free of flammable vapors or high dust content.

• Minimum clearance from any combustible materials: 8 feet
(244 cm) from hot air outlet; 6 feet (183 cm) from top; and 2
feet (61 cm) from sides and inlet.

• Locate heater on a stable and level surface while hot or operat­ing or a fire may occur.

• Use only in well-vented areas. Before using heater, provide at
least a 2800 square cm (three-square-foot) opening of fresh,
outside air for each 30 kw (100,000 Btu/Hr) of rating.

• Keep children and animals away from heater at all times.

• Never start heater when combustion chamber is hot or if fuel
has accumulated in combustion chamber.

• When used with thermostat, heater may start at anytime.

• When heater is moved or stored, it must be in a level position
or fuel spillage may occur.

• Use heater only in accordance with local ordinances and codes.

• Never use gasoline, crankcase drainings, naphtha, paint
thinners, alcohol, or other highly flammable fuels.

• Never use heater where gasoline, paint thinner, or other highly
flammable vapors are present.

• Never use heater in living or sleeping areas.

• Never leave a heater plugged in without adult supervision if
children or animals are likely to be present.

• Never move, handle, refuel, or service a hot, operating, or
plugged-in heater.

• Never attach duct work to front or rear of heater.

• Never attach heater to external fuel tank.

• Heaters used in the vicinity of tarpaulins, canvas, or similar
enclosure materials shall be located a safe distance from such
materials. The recommended minimum safe distance is

304.8cm (10 feet). It is further recommended that these enclo­sure materials be of a fire retardant nature. These enclosure
materials shall be securely fastened to prevent them from ig­niting or from upsetting the heater due to wind action.

• Unplug heater when not in use.

• Never block air inlet (rear) or air outlet (front) of heater.

• Warning to New York City Residents
For Use Only At Construction Sites in accordance with ap-

plicable NYC codes under NYCFD certificate of approval
#4803, #4899, #4908, #4909, or #4934.

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108871-01E

PRODUCT IDENTIFICATION

Hot Air
Outlet

Upper
Shell

Handle

Thermostat Knob
(Thermostat Models Only)

Fan Guard

Hot Air
Outlet

PRODUCT IDENTIFICATION

UNPACKING

Thermostat Knob

Upper Shell

(Thermostat Models Only)

Fan Guard

3

3

Lower
Shell

Fuel
Tank

Side Cover

Ignition Control
Assembly (On Inside
of Side Cover)

Power
Cord

Figure 1 - 40/55/60/70 Models

Hot Air Outlet

Lower
Shell

Fuel
Cap

Fuel Cap

Upper Shell

Air Filter
End
Cover

Fan
Guard

Lower
Shell

Fuel Cap

Side Cover

Figure 3 - 200 Model

Ignition Control
Assembly (On Inside
of Side Cover)

Fuel Tank

Power Cord

UNPACKING

1. Remove all packing items applied to heater for shipment.

2. Remove all items from carton.

3. Check items for any shipping damage. If heater is damaged,
promptly inform dealer where you bought heater.

Side Cover

Ignition Control
Assembly (On Inside
of Side Cover)

Figure 2 - 110/115/150/155/165 Models

108871-01E

Power Cord

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Fuel Tank

Thermostat
Knob
(Thermostat
Models Only)

THEORY OF OPERATION

4

FUELS
VENTILATION

THEORY OF OPERATION

The Fuel System: The air pump forces air through the air line. The air

is then pushed through the nozzle. This air causes fuel to be lifted 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.

Clean
Heated
Air Out

Fuel
Tank

Combustion Chamber

Nozzle

Air For Fuel System

Ignitor

Fuel
Filter

Air For Combustion
And Heating

Motor

Fan

Air Line
To Burner

The Ignition System: The ignition control assembly provides

power to the ignitor. This ignites the fuel/air mixture in the combus­tion chamber.

The Flame-Out Control System: This system causes the heater to

shut down if the flame goes out.

Air Pump

Air Intake
Filter

Cool
Air
In

Air
Output
Filter

Ignition Control
Assembly

Fuel

Figure 4 - Cross Section Operational View

FUELS

WARNING: Use only kerosene, #1/#2 diesel/fuel
oil, JET A or JP-8 fuels to avoid risk of fire or explo­sion. Never use gasoline, oil drained from crank­cases, naphtha, paint thinners, alcohol or other highly
flammable fuels.

Use only kerosene, #1/#2 diesel/fuel oil, JET A or JP-8 fuels.
Heavier fuels such as No. 2 fuel oil or No. 2 diesel fuel may also be
used but will result in:

• noticeable odor

• additional fuel filter maintenance

• the need for nontoxic, anti-icer additives in very cold weather
Do not use fuels heavier than No. 2 grade or heavy oils such as oil

drained from crankcases. These heavy oils will not ignite properly
and will contaminate the heater.

IMPORTANT:

(yellow ) storage container. Be sure storage container is clean. For­eign matter such as rust, dirt, or water will cause the ignition control
assembly to shut down heater. Foreign matter may also require
heater's fuel system to be frequently cleaned.

Use a KEROSENE ONLY (blue) or DIESEL ONLY

VENTILATION

WARNING: Provide a fresh air opening of at least
three square feet (2,800 square cm) for each 100,000
BTU/HR rating. Provide extra fresh air if more heaters
are being used. The minimum ventilation require­ments must be followed to avoid risks associated
with carbon monoxide poisoning. Make certain these
requirements are met prior to operating heater.

Example:

following:

• a two-car garage door [4.88 meter (16 feet) opening] raised

12.7 cm (5 inches)

• a single-car garage door [2.74 meter (9 feet) opening] raised

20.3 cm (8 inches)

• two, 76.2 cm (30 inch) windows raised 38.1 cm (15 inches)

A 58.6kw (200,000 Btu/Hr) heater requires one of the

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108871-01E

ASSEMBLY

OPERATION

5

5

ASSEMBLY

(FOR 110/115/150/155/165/200 MODELS
ONLY)

These models are furnished with wheels and a rear handle. Some
models are furnished with a front handle also. Wheels, handle(s),
and the mounting hardware are found in the shipping carton.

Tools Needed

• Medium Phillips Screwdriver

• 3/8" Open or Adjustable Wrench

• Hammer

1. Slide axle through wheel support frame. Install wheels on axle.

IMPORTANT:

wheels toward wheel support frame (see Figure 5).

2. Place cap nuts on axle ends. Gently tap with hammer to secure.

3. Place heater on wheel support frame. Make sure ho t a ir out le t
end (fron t ) of heater is over wheels. Line up holes on fuel tank
flange with holes on wheel support frame.

4. Place rear handle (and front handle if provided) on top of fuel
tank flange. Insert screws through handle(s), fuel tank flange,
and wheel support frame. Attach nut finger tight after each
screw is inserted.

5. After all screws are inserted, tighten nuts firmly.

Front Handle
(If Provided)

Hot Air
Outlet

Fuel Tank
Flange

When installing wheels, point extended hub of

Handle

Screw

Air
Inlet

OPERATION

IMPORTANT: Review and understand the warnings
in the
needed to safely operate this heater. Follow all local
ordinances and codes when using this heater.

TO START HEATER

1. Follow all ventilation and safety information.

2. Locate heater to provide maximum circulation of the heated

3. Fill fuel tank with kerosene, #1#2 diesel/fuel oil, JET A or

4. Attach fuel cap.

5. For thermostat models, turn thermostat knob clockwise to the

6. Plug heater’s power cord into approved, grounded, three-wire

7. Plug extension cord into standard 120 volt/60 hertz, 3-prong

8. For thermostat models, adjust thermostat knob to the desired

TO STOP HEATER

Safety Information

air. Follow all location requirements noted in Safety Informa­tion, page 2.

JP-8 fuel.

high position.

extension cord. Extension cord must be at least six feet (1.8
meters) long.

Extension Cord Size Requirement

6 to 10 feet (1.8 to 3 meters) long, use 18 AWG (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

grounded outlet.
then heater will start.

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.

Note:

Note:

A cold heater may affect the thermostat setting.

section, page 2. They are

Ignitor will preheat for five seconds,

Wheel
Support

Wheel

Cap Nut

Figure 5 - Wheel and Handle Assembly, 110/115/150/155/165/
200 Models Only

108871-01E

Frame

Nut

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Extended
Hub

Axle

Unplug extension cord from outlet.

TO RESTART HEATER

1. Unplug extension cord from outlet and wait 10 seconds. (W ait
two minutes if heater has been running.)

2. Repeat steps under To Start Heater.

OPERATION WITH PORTABLE GENERATOR

6

STORING, TRANSPORTING, OR SHIPPING
PREVENTATIVE MAINTENANCE SCHEDULE

OPERATION WITH PORTABLE
GENERATOR

WARNING: Before operating heater or any appli­ance from a portable generator, verify that generator
has been properly connected to earth ground. Im­proper grounding or failure to ground generator can
result in electrocution if a ground fault occurs. Refer
to owner’s manual supplied by generator manufac­turer for proper grounding procedures.

The operating voltage range of the heater is 108 to 132 Volts (120
Volts +/- 10%). Prior to plugging heater into generator the output
voltage should be verified (if generator is equipped with the automatic
idle feature, the output voltage should be measured with the generator
running at full speed). If the voltage does not measure in this range
the heater should not be plugged into the generator.

Refer to Operation, page 5, for starting, stopping, and resetting
heater procedures.

Alternator

Ground Lug

Copper or Brass
Grounding Point

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:

during next heating season. Using old fuel could damage heater.

Do not store kerosene over summer months for use

Ground Wire (#10 AWG ­Stranded-Copper)

Figure 6 - Typical Generator Grounding Method (Generator
construction may vary from that shown)

PREVENTATIVE MAINTENANCE SCHEDULE

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

can occur.

Item

Fuel tank

Air output and lint filters

Air intake filter

Fuel filter

Ignitor

Fan blades

How Often

Flush every 150-200 hours of operation or as needed

Replace every 500 hours of operation or once a year

Wash and dry with soap and water every 500 hours
of operation or as needed

Clean twice a heating season or as needed

No maintenance required

Clean every season or as needed

How To

See Storing, Transporting, or Shipping, above

See Air Output, Air Intake, and Lint Filters, page 8

See Air Output, Air Intake, and Lint Filters, page 8

See Fuel Filter, pages 9 and 10

See Fan, page 8

Motor

Not required/permanently lubricated

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108871-01E

TROUBLESHOOTING

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

TROUBLESHOOTING

7

7

FAULT CONDITION

Motor does not start five seconds after
heater is plugged in

Motor starts and runs but heater does not
ignite

POSSIBLE CAUSE

1. No power to heater

2. If equipped, thermostat setting is too low

WARNING: High voltage!

3. Bad electrical connection between mo­tor and ignition control assembly or ig­nition control assembly and power cord

4. Binding pump rotor

5. Defective ignition control assembly

6. Defective motor

7. Blown fuse or ignitor control assembly

1. No fuel in tank

2. Pump pressure incorrect

3. Dirty fuel filter

4. Obstruction in nozzle

5. Water in fuel tank

WARNING: High voltage!

6. Bad electrical connection between igni­tor and ignition control assembly

7. Defective ignitor

8. Defective ignition control assembly

9. 200 Model Only: Defective fuel valve
(Models equipped with fuel valve only)

REMEDY

1. Check circuit breaker in electrical panel

2. Turn thermostat knob to a higher setting

3. Check all electrical connections. See
Wiring Diagrams, pages 16 and 17

4. If fan does not turn freely, see Pump Ro-
tor, page 14

5. Replace ignition control assembly

6. Replace motor

7. See Ignition Control Assembly, page 15

1. Fill tank with kerosene

2. See Pump Pressure Adjustment, page 9

3. See Fuel Filter, pages 9 and 10

4. See Nozzle Assembly, pages 12 and 13

5. Drain and flush fuel tank with clean
kerosene. See Storing, Transporting, or
Shipping, page 6

6. Check electrical connections. See Wir-
ing Diagrams, pages 16 and 17

7. Replace ignitor, see page 11

8. Replace ignition control assembly

9. See Fuel Valve, page 10

Heater ignites but ignition control as­sembly shuts heater off after a short
period of time

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108871-01E

1. Pump pressure incorrect

2. Dirty air intake, air output, and/or lint
filter

3. Dirty fuel filter

4. Obstruction in nozzle

5. Photocell assembly not properly in­stalled (not seeing the flame)

6. Dirty photocell lens

WARNING: High voltage!

7. Bad electrical connection between pho­tocell and ignition control assembly

8. Defective photocell

9. Defective ignition control assembly

1. See Pump Pressure Adjustment, page 9

2. See Air Output, Air Intake, and Lint Fil-
ters, page 8

3. See Fuel Filter, pages 9 and 10

4. See Nozzle Assembly, pages 12 and 13

5. Make sure photocell boot is properly
seated in bracket

6. Clean photocell lens

7. Check electrical connections. See Wir-
ing Diagrams, pages 16 and 17

8. Replace photocell

9. Replace ignition control assembly

SERVICE PROCEDURES

8

SERVICE PROCEDURES

WARNING: To avoid risk of burn and electrical
shock, never attempt to service heater while it is
plugged in, operating, or hot.

Setscrew

Fan

Motor

Setscrew

Fan

UPPER SHELL REMOVAL

1. Remove screws along each side of heater using 5/16" nut-driver.
These screws attach upper and lower shells together. See Fig­ure 7 or 8.

2. Lift upper shell off.

3. Remove fan guard.

Screw

Upper Shell

Fan
Guard

Figure 7 - Upper Shell
Removal, 40/50/60/70
Models Only

Figure 8 - Upper Shell
Removal, 110/115/150/155/
165/200 Models Only

Screw

Upper Shell

Fan
Guard

FAN

Flush

Motor
Shaft

Figure 9 - Fan, Motor Shaft,
and Setscrew Location

Figure 10 - Fan Cross Section

Motor
Shaft

AIR OUTPUT, AIR INTAKE AND LINT FILTERS

1. Remove upper shell (see Figure 7 or 8).

2. Remove filter end cover screws using 5/16" nut-driver (see
Figure 11 or 12).

3. Remove filter end cover.

4. Replace air output and lint filters.

5. W ash or replace air intake filter (see Pre ventative Maintenance
Schedule, page 6).

6. Replace filter end cover.

7. Replace fan guard and upper shell.

IMPORTANT:

Do not oil filters.

Air Intake
Filter

Filter End
Cover

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 (see Figure 9).

1. Remove upper shell (see Figure 7 or 8).

2. Use 1/8" allen wrench to loosen setscrew which holds fan to

motor shaft.

3. Slip fan off motor shaft.

4. Clean fan using a soft cloth moistened 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 10).

7. Place setscrew on flat of shaft. Tighten setscrew firmly (40-50

inch-pounds/4.5-5.6 n-m).

8. Replace fan guard and upper shell.

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Lint Filter

Air Output
Filter

Figure 11 - Air Output, Air Intake, and Lint Filters, 40/55/60/70
Models Only

Air Intake
Filter

Filter End
Cover

Lint Filter

Air Output Filter

Figure 12 - Air Output, Air Intake, and Lint Filters, 110/115/150/
155/165/200 Models Only

108871-01E

SERVICE PROCEDURES

Continued

SERVICE PROCEDURES

9

9

PUMP PRESSURE ADJUSTMENT

1. Remove pressure gauge plug from filter end cover (see Figure 13).

2. Install accessory pressure gauge (part number HA1180).

3. Start heater (see Operation, page 5). Allow motor to reach

full speed.

4. Adjust pressure. Turn relief valve to right to increase pressure.

Turn relief valve to left to decrease pressure. See specifica­tions correct pressure for each model (see Figure 14).

5. Remove pressure gauge. Replace pressure gauge plug in filter

end cover.

Pressure
Gauge
Plug

Figure 13 - Pressure Gauge Plug Removal (40/55/60/70 Models
Shown)

Pump

Model Pressure

40 3.0 PSI
55 3.4 PSI
60 3.4 PSI

70 4.7 PSI
110 5.3 PSI
115 5.3 PSI
150 5.4 PSI
155 5.4 PSI
165 5.6 PSI
200 6.2 PSI

Figure 14 - Adjusting Pump Pressure (40/55/60/70 Models Shown)

Pressure
Gauge

Relief
Valve

Fuel Filter
and Bushing

Upper Fuel Line

Side Cover

Figure 15 - Fuel Filter Removal, 40/55/60/70 Models

Fuel Filter, Bushing,
and Lower Fuel Line

Side
Cover

FUEL FILTER

(For 40/55/60/70/110/115/150/155/165 Models Only)

1. Remove side cover screws using 5/16" nut-driver.

2. Remove side cover.

3. Pull upper fuel line off fuel filter neck (see Figure 15 or 16).

4. Carefully pry bushing, fuel filter, and lower fuel line (1 10/115/
150/155/165 Models only) out of fuel tank (see Figure 16).

5. Wash fuel filter with clean fuel and replace in tank.

6. Attach upper fuel line to fuel filter neck.

7. Replace side cover.

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108871-01E

Upper Fuel Line

Figure 16 - Fuel Filter Removal, 110/115/150/155/165 Models

10

SERVICE PROCEDURES

SERVICE PROCEDURES

Continued

(For 200 Model Only)

1. Remove side cover screws using 5/16" nut-driver.

2. Remove side cover (see Figure 17).

3. Pull lower fuel line off the fuel valve fitting ( s e e F i g u re 1 7 ) .

Note:

See Figure 16, page 9 if your model does not come

equipped with a fuel valve.

4. Carefully pry bushing, lower fuel line, and fuel filter out of
fuel tank.

5. Wash fuel filter with clean fuel and replace in tank.

6. Attach lower fuel line to fuel valve fitting.

7. Replace side cover.

Bushing, Lower Fuel
Line, and Fuel Filter

Screw

FUEL VALVE

For 200 Models Equipped with Fuel Valve

1. Remove side cover (see Figure 17), fan guard, and upper
shell (see Figure 8, page 8) screws using 5/16" nut-driver.

2. Remove fan (see Fan, page 8).

3. Pull lower fuel line off the fuel valve fitting (see Figure 18).

WARNING: High Voltage

4. Disconnect red and white wires from fuel valve (see Figure 18).

5. Using 1/4" nut driver remove 2 screws holding fuel valve and
bracket to lower shell (see Figure 18). Save these screws.

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 screws.

9. Connect red and white wires (polarity not important). Connect
upper and lower fuel lines to fuel valve (see Figure 18).

10. Replace fan, fan guard, upper shell, and side cover.

Valve Fittings

Fuel Valve

Electrical Wires

Screw

Side Cover

Figure 17 - Fuel Filter Removal, 200 Model Only (Model with Fuel
Valve Assembly Shown)

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Fuel Valve Fitting

Bracket

Screw

Lower Fuel Line

Figure 18 - Fuel Valve Replacement, 200 Model Only

108871-01E

SERVICE PROCEDURES

Continued

IGNITOR

1. Remove upper shell and fan guard (See Upper Shell Removal,
page 8).

2. Remove fan (see page 8).

3. Remove 4 side cover screws with a 5/16" nut driver. Remove
side cover (see Figures 15 or 16, page 9 or Figure 17, page 10).

4. Disconnect ignitor wires from ignition control assembly (see
Figure 19). Pull the ignitor wires up through the hole in the
lower shell.

5. Disconnect fuel line hose and air line hose. Remove photocell
from photocell bracket (see Figure 19).

6. Remove combustion chamber. Stand combustion chamber on
end with nozzle adapter bracket on top (see Figure 20).

7. Remove ignitor screw with a 1/4" nut driver. Carefully remove
ignitor from nozzle adapter bracket.

CAUTION: Do not bend or strike ignitor element.

Handle with care.

SERVICE PROCEDURES

11

11

8. Carefully remove replacement ignitor from styrofoam packing.

9. Carefully guide ignitor into opening in nozzle adapter bracket.
Do not strike ignitor element. Attach ignitor to nozzle adapter
bracket with screw using a 1/4" nut driver (see Figure 20).
Torque .90 to 1.69 N-m (8 to 15 in-lbs) Do not over torque.

10. Replace combustion chamber.

11. Route the ignitor wires back down through the hole in the lower
shell. Connect wires to the ignition control assembly (see Fig­ure 19).

12. Replace side cover (see Figures 15 or 16, page 9 or Figure 17,
page 9).

13. Connect and route fuel line hose and air line hose to nozzle
adapter assembly. See Fuel and Air Line Replacement and
Proper Routing, page 13.

14. Replace photocell in photocell bracket. Route wires as shown in
either (see Figures 21, 22 or 23, page 12 or Figure 26, page 13).

15. Replace fan (see page 8).

16. Replace fan guard and upper shell (see page 8).

Nozzle Adapter
Combustion
Chamber

Air Line Hose

Fuel Line Hose

Photocell
Bracket

Photocell
Assembly

Side Cover

Figure 19 - Disconnecting Ignitor Wires from Ignition Control
Assembly (40/55/60/70/110/115/150/155/165 Models Shown)

Bracket

Ignitor

Ignitor Wire

Ignition
Control
Assembly

Ignitor Screw/
Washer Assembly

Ignitor Element

Photocell
Bracket

Combustion
Chamber

Figure 20 - Ignitor Replacement

Ignitor

Nozzle Adapter
Bracket

Nozzle Adapter
Bracket Opening

108871-01E

For more information, visit www.desatech.com

For more information, visit www.desatech.com

SERVICE PROCEDURES

12

SERVICE PROCEDURES

Continued

NOZZLE ASSEMBLY

(For 40/55/60/70/110/115/150/155/165 Models Only)

1. Remove upper shell (see Upper Shell Removal, page 8).

2. Remove fan (see Fan, page 8).

3. Remove fuel and air line hoses from nozzle assembly (see Fig­ure 21, 22, or 23).

4. Turn nozzle assembly 1/4 turn to left and pull toward motor to
remove (see Figure 24).

5. Place plastic hex-body into vise and lightly tighten.

6. Carefully remove nozzle from the nozzle adapter using 5/8"
socket wrench (see Figure 25).

7. Blow compressed air through face of nozzle. This will free
any dirt in nozzle area.

8. Inspect nozzle sleeve for damage.

9. Replace nozzle into nozzle adapter until nozzle seats. Tighten
1/3 turn more using 5/8" socket wrench 4.5 to 5.1 N-m (40 to
45 in-lbs). See Figure 25.

Combustion
Chamber

Nozzle
Adapter
Bracket

Photocell
Bracket

Nozzle/Adapter
Assembly

Fuel Line Hose

10. Attach nozzle assembly to burner strap (see Figure 24).

11. Attach fuel and airline hoses to nozzle assembly. See Fuel and
Airline Replacement and Proper Routing, page 13.

12. Replace fan (see Fan, page 8).

13. Replace fan guard and upper shell (see Upper Shell Removal,
page 8).

Combustion
Chamber

Nozzle
Adapter
Bracket

Photocell
Bracket

Air Line
Hose

Figure 23 - Removing Air and Fuel Line Hoses
(150/155/165 Models Only)

Combustion
Chamber

Nozzle/
Adapter
Assembly

Fuel Line Hose

Nozzle/Adapter
Assembly

Air Line
Hose

Figure 21 - Removing Air and Fuel Line Hoses
(40/55/60/70 Models Only)

Combustion
Chamber

Nozzle Adapter
Bracket

Air Line Hose

Photocell Bracket

Figure 22 - Removing Air and Fuel Line Hoses
(110/115 Models Only)

For more information, visit www.desatech.com

For more information, visit www.desatech.com

Fuel Line
Hose

Nozzle/
Adapter
Assembly

Figure 24 - Removing Nozzle/Adapter Assembly

Nozzle
Face

Nozzle

Nozzle Adapter

Figure 25 - Nozzle and Nozzle Adapter

Nozzle Sleeve

Air Line
Fitting

Fuel Line
Fitting

108871-01E

SERVICE PROCEDURES

Continued

SERVICE PROCEDURES

13

13

(For 200 Model Only)

1. Remove combustion chamber and ignitor by following steps 1
through 7 under Ignitor, page 11.

2. Carefully place the ignitor in a safe location.

3. Remove two nozzle adapter bracket screws (see Figure 26).

4. Place hex-shaped aluminum nozzle adapter into vise (do not
overtighten).

5. Carefully remove nozzle from nozzle adapter using 5/8" socket
wrench (see Figure 27).

6. Blow compressed air through face of nozzle. This will re­move any debris in nozzle.

7. Inspect nozzle seal for damage.

8. Replace nozzle into nozzle adapter until nozzle seats. Tighten
80-110 inch-pounds.

9. Attach nozzle adapter bracket to combustion chamber with two
screws removed in step 3.

10. Repeat steps 9 through 16 under Ignitor, page 11.

Combustion
Chamber

Nozzle Adapter

Nozzle
Adapter
Bracket

Photocell
Bracket

Bracket
Screw

Nozzle/
Adapter
Assembly

FUEL AND AIR LINE REPLACEMENT AND
PROPER ROUTING

1. Remove upper shell (see Upper Shell Removal, page 8).

2. Remove side cover screws using 5/16" nut driver (see Figure 15
or 16, page 9 or Figure 17, page 10).

3. Remove side cover.

4. Inspect fuel and air line hoses for cracks and/or holes. If fuel
line hose is damaged, disconnect from nozzle adapter (see Fig­ure 21, 22, or 23, page 12, or Figure 26) and from fuel filter
(see Fuel Filter, pages 9 and 10). If air line hose is damaged,
disconnect from nozzle adapter (see Figure 21, 22, or 23, page
12, or Figure 26) and from barb fitting on pump end cover (see
Figure 28).

5. Install new air and/or fuel line. Attach one end of air line hose to
barb fitting on pump end cover (see Figure 28) and the other
end to nozzle adapter (see Figure 21, 22, or 23, page 12, or
Figure 26). Attach one end of fuel line hose to fuel filter (see
Fuel Filter, pages 9 and 10) and the other end to nozzle adapter
(see Figure 21, 22, or 23, page 12, or Figure 26).

Note:

Route hoses as shown in see Figure 21, 22, or 23, page
12, or Figure 26, according to model. Hoses are not to touch
photocell bracket.

6. Replace side cover.

7. Replace upper shell and fan guard (see Upper Shell Removal,
page 8).

Pump End Cover

Barb Fitting

Air Line
Hose

Figure 26 - Removing Air and Fuel Line Hoses (200 Model Only)

Nozzle Face

Nozzle

Nozzle
Adapter
Bracket

Figure 27 - Nozzle and Nozzle Adapter

108871-01E

Air Line
Fitting

Fuel Line Fitting

For more information, visit www.desatech.com

For more information, visit www.desatech.com

Fuel Line Hose

Nozzle
Sleeve

Nozzle
Adapter

Barb
Fitting

Air Hose

40/55/60/70

Models

Figure 28 - Air Hose to Barb Fitting

110/115/150/155/165/200

Models

14

SERVICE PROCEDURES

SERVICE PROCEDURES

Continued

PUMP ROTOR

(Procedure if Rotor is Binding)

1. Remove upper shell (see Upper Shell Removal, page 8).

2. Remove filter end cover screws using 5/16" nut driver (see Fig­ure 29 or 30).

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 (see Figure 29 or 30).

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 .076/.101 mm (.003"/.004") if
needed (see Figure 31).

Note:

Rotate rotor one full turn to ensure the gap is .076/.101 mm

(.003"/.004") at tightest position. Adjust if needed.

10. Install blades, pump plate, air filters, and filter end cover.

11. Replace fan guard and upper shell (see Upper Shell Removal,
page 8).

12. Adjust pump pressure (see Pump Pressure Adjustment, page 9).

Note:

If rotor is still binding, proceed as follows.

13. Perform steps 1 through 6.

14. Place fine grade sandpaper (600 grit) on flat surface. Sand ro­tor lightly in “figure 8” motion four times (see Figure 32).

15. Reinstall insert and rotor.

16. Perform steps 10 through 12.

Blade

Pump Plate

Air Intake Filter

Filter End
Cover

Blade

Pump Plate

Air Intake
Filter

Rotor

Insert

Air Output
Filter

Figure 30 - Rotor Location, 110/115/150/155/165/200 Models

Gap Adjusting Screw

.003"/.004"
(.076-.101 mm)
Gap Measured

Blade

Gap Adjusting Screw

Figure 31 - Gap Adjusting Screw Locations

Sandpaper

With Feeler
Gauge

Rotor

Filter End
Cover

Insert

Figure 29 - Rotor Location, 40/55/60/70 Models

Rotor

Air Output
Filter

For more information, visit www.desatech.com

For more information, visit www.desatech.com

Figure 32 - Sanding Rotor

108871-01E

SERVICE PROCEDURES

TECHNICAL SERVICE

REPLACEMENT PARTS

15

15

SERVICE PROCEDURES

Continued

IGNITION CONTROL ASSEMBLY

WARNING: High voltage!

1. Unplug heater.

2. Remove side cover screws (4) using 5/16" nut-driver to ex­pose ignition control assembly.

3. Remove fuse cover (see Figure 33).

4. Remove fuse from fuse clips (see Figure 33).

5. Replace fuse with fuse of the same type and rating (GMA-10).
Do not substitute a fuse with a higher current rating.

6. Replace fuse cover (see Figure 33).

7. Replace side cover (see Figures 15 or 16, page 9 or Figure 17,
page 10).

Fuse Clips

Fuse
Cover

Fuse

TECHNICAL SERVICE

You may have further questions about installation, operation, or
troubleshooting. If so, contact DESA International’s Technical
Service Department at 1-866-672-6040. When calling please have
your model and serial numbers of your heater ready.

You can also visit DESA International’s technical services web site
at www.desatech.com.

REPLACEMENT PARTS

Note:

Use only original replacement parts. This will protect your

warranty coverage for parts replaced under warranty.

PARTS UNDER WARRANTY

Contact authorized dealers of this product. If they can’t supply
original replacement part(s), call DESA International’s Technical
Service Dept. at 1-866-672-6040.

When calling DESA International, have ready:

• your name

• your address

• model and serial numbers of your heater

• how heater was malfunctioning

• purchase date
Usually, we will ask you to return the part to the factory.

Figure 33 - Replacing Fuse

PARTS NOT UNDER WARRANTY

Contact authorized dealers of this product. If they can’t supply original
replacement part(s), call DESA International at 1-866-672-6040 for
referral information. Parts dealers are listed in the Authorized Service
Center booklet supplied with heater.

When calling DESA International, have ready:

• model and serial numbers of your heater

• the replacement part number

108871-01E

For more information, visit www.desatech.com

For more information, visit www.desatech.com

16

SPECIFICATIONS
WIRING DIAGRAMS

SPECIFICATIONS

Model Size 40 55/60 70 110/115 150/155 165 200

Output Rating (Btu/Hr) 40,000 55,000 70,000 110,000 150,000 165,000 200,000

and 60,000 and 115,000 and 155,000
Fuel Use only kerosene, #1/#2 diesel/fuel oil, JET A or JP-8 fuels*
Fuel Tank Capacity

(U.S. Gal./Liters) 3/11.3 5/18.9 5/18.9 9/34 13.5/51 13.5/51 13.5/51

Fuel Consumption

(Gal. Per Hr/Liters Per Hr) .3/1.14 .44/1.67 .52/1.97 .85/3.00 1.14/4.31 1.2/4.54 1.4/5.3

Pump Pressure (psi) 3.0 3.4 4.7 5.3 5.4 5.6 6.2
Electric Requirements 120 V/60 HZ (Same All Models)

Amperage (Normal Run) 2.0 2.0 2.8 3.6 3.6 3.6 3.6
Motor RPM 1725 1725 3440 3400 3400 3400 3400
Hot Air Output (CFM) 170 180 360 490 550 575 600
Motor HP 1/15 1/15 1/8 1/5 1/5 1/5 1/4
Shipping Weight 32/14.5 33/15 35/15.9 54/24.5 63/28.6 65/29.5 77/35

(Approximate Pounds/Kilograms)
Heater Weight without Fuel 28/12.7 29/13.1 31/14 46/21 54/24.5 55/25 66/30

(Approximate Pounds/Kilograms)

* Use of #2 diesel & fuel oil will result in noticeable odor and could require additional fuel filter maintenance. Use in extreme cold
temperatures may require nontoxic anti-icer additives.

WIRING DIAGRAMS

Photocell

Photocell

Ignitor

Ignition Control Assembly

Figure 34 - Wiring Diagram without Thermostat (40/55/60/70/110/115/150/155/165 Models)

Motor Return

AC Neutral (L2)

120V (L1)

Motor

Ignitor

Blue
Blue

Red

Black

White

Green

Yellow

Photocell

White

Motor

Green

Power Plug

120V/60Hz

Yellow

Ignitor

For more information, visit www.desatech.com

For more information, visit www.desatech.com

108871-01E

WIRING DIAGRAMS

Continued

White

Black

Thermostat

Red

Blue
Blue

White

Green

Photocell

120V/60Hz

Black

White

White

Power Plug

Green

Solenoid

Red

Valve

Motor

Yellow

Yellow

Red

Ignitor

Photocell

Photocell

Ignitor

Motor Return

AC Neutral (L2)

AC Hot (L1)

Ignition Control Assembly

Motor

Ignitor

(Heater with Fuel Valve Assembly) (Heater without Fuel Valve Assembly)

Figure 35 - Wiring Diagram with Thermostat for 200 Model

WIRING DIAGRAMS

Photocell

Photocell

Ignitor

Motor Return

AC Neutral (L2)

120V (L1)

Ignition Control Assembly

Motor

Ignitor

Blue
Blue

White

Green

Red

Black

Y ellow

Photocell

White

Green

Motor

Yellow

Thermostat

Ignitor

17

17

lug

er P

ow

P

120V

Black

/60H

z

Photocell

Photocell

Blue
Blue

Photocell

White

Ignitor

Ignitor

Green

Yellow

Thermostat

Power Plug
120V/60Hz

Black

Motor Return

AC Neutral (L2)

White

Green

Motor

120V (L1)

Ignition Control Assembly

Motor

Red

Black

Ignitor

Y ellow

Figure 36 - Wiring Diagram with Thermostat (40/55/60/70/110/115/150/155/165 Models)

Blue
Blue

White

White

Black

Red

Green

Photocell

White

Power Plug

120V/60Hz

Green

Solenoid

Valve

White

Motor

Red

Black

Red

Black

Ignitor

Ignition Control Assembly

Photocell

Photocell

Ignitor

Motor Return

AC Neutral (L2)

120V (L1)

Motor

Ignitor

Ignition Control Assembly

AC Neutral (L2)

Photocell

Photocell

Ignitor

Motor Return

AC Hot (L1)

Motor

Ignitor

(Heater with Fuel Valve Assembly) (Heater without Fuel Valve Assembly)

Blue
Blue

Red

Black

White

Green

Yellow

Photocell

White

Motor

Ignitor

Green

Yellow

ow

P

120V

er P

/60H

lug

z

Figure 37 - Wiring Diagram without Thermostat for 200 Model

For more information, visit www.desatech.com

For more information, visit www.desatech.com

108871-01E

18

ILLUSTRATED PARTS BREAKDOWN
40/55/60/70 Models

ILLUSTRATED PARTS
BREAKDOWN

40/55/60/70 MODELS

Standard Thermostat
Models Models

R40 R40T
REM40 R55BT
R55B B55BT
R60 R70DT
REM60 B70DT
RM60

22

4

5

35

3

9

7
8

6

21

10

20

23

18

1

2

9-1

9-2

9-5

11

9-4

9-3

12

13

16

24

12-18

12-17

12-1

12-16

12-2

12-5

12-3

12-4

12-15

12-14

17

12-6

19

34

12-7

31

12-8

12-9

28

30
29

32

12-13

12-10

25

36

27

37

38

26

33

15

14

Motor and Pump Assembly

For more information, visit www.desatech.com

For more information, visit www.desatech.com

12-12

12-19

12-11

108871-01E

PARTS LIST

40/55/60/70 Models

19

19

PARTS LIST

40/55/60/70 MODELS

KEY PART
NO. NUMBER DESCRIPTION QTY.

1 M51104-01 Handle 1
2 098511-67 Upper Shell (Service Part 1

Will Be Black)
3 M11084-29 Screw, #10-16 x 3/4" 2
4 M15823-27 Screw, #10-16 x 1
5 098512-58 Combustion Chamber (40) 1

098512-50 Combustion Chamber (55/60) 1

098512-51 Combustion Chamber (70) 1
6 M10908-2 Screw, #6-32 x 3/8" 2
7 103154-03 Photocell Bracket 1
8 M16656-24 Photocell Assembly 1
9 ∆ Burner Head Assembly
9-1 HA3006 Nozzle Assembly (40) 1

HA3024 Nozzle Assembly (55/60) 1

HA3026 Nozzle Assembly (70) 1
9-2 102548-03 Ignitor Kit 1
9-3 104056-01 Nozzle Adapter 1
9-4 102336-01 Nozzle Adapter Bracket 1
9-5 M10908-75 Screw, Hex Head, Tapping 1
9-6 103347-01 Belleville Washer 1
10 107992-01 Screw, #10-16 x 3/8" 2
11 103684-01 Fan (40/55/60) 1

M29678 Fan (70) 1
12 ∆ Motor and Pump Assembly
12-1 102001-28 Motor (40/55/60) 1

102001-20 Motor (70) 1
12-2 079975-03 Pump Body (55/60) 1

079975-02 Pump Body (40/70) 1
12-3 M22009**, *** Insert 1
12-4 M22456-2** Rotor (55/60) 1

M22456-1*** Rotor (40/70) 1
12-5 M29608 Pump End Cover 1
12-6 M29632 ⊕ Lint Filter 1
12-7 M29633 ⊕ Intake Filter 1
12-8 M29609 Filter End Cover 1
12-9 M12461-31 Screw, #10-32 x 1" 3
12-10 M27694 ∞ Adjusting Screw 1
12-11 M10993-1 ∞ Pressure Relief Spring 1
12-12 M22997 ∞ Plug 1
12-13 M8940 ∞ Steel Ball, 1/4" Diameter 1
12-14 M29612-01 ⊕ Output Filter 1
12-15 M12461-32 Screw, #10-32 x 1

M12461-31 Screw, #10-32 x 1" (40/70) 6
12-16 103676-01 Nylon Elbow, 90° 1
12-17 M8643-2** Blade (55/60) 4

M8643*** Blade (40/70) 4

This list contains replaceable parts used in your heater. When ordering parts, be sure to
provide the correct model and serial numbers (from the model plate), then the part number
and description of the desired part.

1

/2"6

1

/8" (55/60) 6

KEY PART
NO. NUMBER DESCRIPTION QTY.

12-18 FHPF3-6C Screw, #10-32 x 3/4" (55/60) 2

FHPF3-5C Screw, #10-32 x 5/8" (40/70) 2
12-19 105780-01 Plastic Cap 1
13 M51105-01 Fan Guard 1
14 098219-38 Power Cord 1
15 M11143-1 Strain Relief Bushing 1
16 NTC-4C Hex Lock Nut, 1/4-20 2
17 107992-01 Screw, #10-16 x 3/8" 4
18 M50631 Rubber Bumper 2
19 097461-09 Side Cover 1
20 101205-01 Motor Bracket 1
21 M50104-06 Bushing 1
22 M11271-8 Clip Nut 6
23 M50104-02 Bushing 1
24 107992-01 Screw, #10-16 x 3/8" 6
25 M10908-14 Screw, #8-32 x 3/8" 1
26 098511-234 Lower Shell (Service Part 1

Will Be Black) 1
27 M50814-06 Rubber Airline 1
28 079973-01 Fuel Line 1
29 M50876-04 Fuel Filter with bushing (40) 1

M50876-05 Fuel Filter with bushing

(55/60/70) 1
30 M10990-3 Rubber Bushing 1
31 102349-01 PCB Support 5
32 104068-02 Ignition Control Assembly 1
33 097702-01 Fuel Cap (Includes Gasket) 1
34 108088-01 Fuel Tank (40) 1

108088-03 Fuel Tank (55/60/70) 1
35 M51108-01 Shell Heat-Shield 1
36 104458-01 Thermostat (40/55/60) 1

097657-03 Thermostat (70) 1
37 M12461-18 Screw, #8-32 x 7/8" (40/55/60) 1

M10908-1 Screw, #6-32 x 1/4" (70) 2
38 104460-01 Thermostat Knob (40/55/60) 1

104905-01 Thermostat Knob (70) 1

PARTS AVAILABLE - NOT SHOWN

100621-06 Thermostat Decal 1

103814-01

M9900-170 Wire Assembly

Wire Tie
Control Assembly) 1

(Thermostat to Ignition
Control Assembly 40/55/60) 1

(For Ignition

∆ Not available as an assembly ⊕ Included in Filter Kit (Part No. HA3014)
** Included in Rotor Kit (Part No. HA3005) ∞ Included in Pump Adjustment Kit (Part No. HA3020)
*** Included in Rotor Kit (Part No. HA3004)

For more information, visit www.desatech.com

For more information, visit www.desatech.com

108871-01E

20

ILLUSTRATED PARTS BREAKDOWN

110/115/150/155/165 Models

ILLUSTRATED PARTS
BREAKDOWN

110/115/150/155/165 MODELS

Standard Thermostat
Models Models

R110B R110BT
R115 B110BT
REM115 SB115T
RM115 SB150JT
REM150E B155T
REM155B R165AT
RM155
R155B

2

1

3

7-4

7

4

6

24

28

5

8

11

23

20
22

19

25

18

29

9

10

12

15

26

27

7-5

7-1

16

7-2

7-6

7-3

10-1

10-2

10-3

10-17

10-16

10-15

10-13

Motor and Pump Assembly

10-4

10-14

10-5

10-13

35

36

10-6

10-12

21

30

31

38

14

32

10-7

17

10-8

10-9

10-10

10-18

10-11

37

13

33

34

14

For more information, visit www.desatech.com

For more information, visit www.desatech.com

108871-01E

PARTS LIST

110/115/150/155/165 Models

21

21

PARTS LIST

110/115/150/155/165 MODELS

KEY PART
NO. NUMBER DESCRIPTION QTY.

1 098511-66 Upper Shell (Service Part Will

Be Black) 1
2 M15823-27 Screw, #10-16 x 1/2" 8
3 098512-54 Combustion Chamber (110/115) 1

098512-59 Combustion Chamber (150/155) 1
098512-60 Combustion Chamber (165) 1

4 103971-01 Photocell Bracket (110/115) 1

103154-05 Photocell Bracket (150/155/165) 1
5 M10908-2 Screw, #6-32 x 3/8" 2
6 M16656-24 Photocell Assembly 1
7
7-1 HA3027 Nozzle Assembly (110/115) 1

7-2 102548-03 Ignitor Kit 1
7-3 M10908-75 Screw 1
7-4 102336-01 Nozzle Adapter Bracket 1
7-5 104054-01 Nozzle Adapter 1
7-6 103347-01 Washer 1
8 107992-01 Screw, #10-16 x 3/8" 2
9 097293-01 Fan (110/115) 1

10
10-1 102001-30 Motor 1
10-2 079975-02 Pump Body 1
10-3 FHPF3-5C Screw, #10-32 x 5/8" 2
10-4 M22009** Rotor Insert 1
10-5 M22456-1** Pump Rotor 1
10-6 M50545 Pump End Cover 1
10-7 M12179*** Intake Filter 1
10-8 M16545 Filter End Cover 1
10-9 M8940
10-10 M10993-1
10-11 M27694
10-12 M22997
10-13 M12461-31 Screw, #10-32 x 1" 10
10-14 M12244-1*** Output Filter 1
10-15 M11637*** Lint Filter 1

∆ Not available as an assembly ∗∗∗ Included in Filter Kit (Part No. HA3017)
** Included in Rotor Kit (Part No. HA3004) ∞ Included in Pump Adjustment Kit (Part No. HA3020)

∆ Burner Head Assembly 1

HA3028 Nozzle Assembly (150/155) 1

HA3029 Nozzle Assembly (165) 1

102042-01 Fan (150/155/165) 1

∆ Motor and Pump Assembly 1

∞ Steel Ball, 1/4" Diameter 1

∞ Relief Spring 1
∞ Adjusting Screw 1
∞ Plug 1

This list contains replaceable parts used in your heater. When ordering parts, be sure to
provide the correct model and serial numbers (from the model plate), then the part number
and description of the desired part.

KEY PART
NO. NUMBER DESCRIPTION QTY.

10-16 104096-01 Fitting, Straight Nylon Barb 1
10-17 M8643** Blade 4
10-18 105780-01 Plastic Cap 1
11 M50631 Rubber Bumper 2
12 101206-01 Motor Mounting Bracket 1
13 M10908-1 Screw, #6-32 x 1/4" 2
14 104068-02 Ignition Control Assembly 1
15 NTC-4C Hex Lock Nut, 1/4-20 2
16 M51114-01 Fan Guard 1
17 M27417 Drain Plug (Includes “o” Ring) 1
18 099213-01 Button Plug 1
19 M51345-06 Fuel Line 1
20 M51150-01*** Fuel Filter 1
21 M51151-01 Fuel Line Tube (110/115) 1

M51151-02 Fuel Line Tube (150/155/165) 1
22 M10990-3 Rubber Bushing 1
23 M50814-03 Airline 1
24 098511-236 Lower Shell (Service Part Will

Be Black) 1
25 M50104-03 Bushing 1
26 M50104-01 Bushing 1
27 107992-01 Screw, #10-16 x 3/8" 6
28 M11271-8 Clip Nut 8
29 M10908-14 Screw, #8-32 x 3/8" 1
30 108088-04 Fuel Tank (110/115) 1

108088-05 Fuel Tank (150/155/165) 1
31 097702-01 Fuel Cap (Includes Gasket) 1
32 102349-01 P.C. Board Support 5
33 M11143-1 Strain Relief Bushing 1
34 098219-38 Power Cord 1
35 M51077-15 Side Cover 1
36 107992-01 Screw, #10-16 x 3/8" 4
37 104905-01 Thermostat Knob 1
38 097657-03 Thermostat 1

103814-01 Wire Tie (Not Shown) - Groups 1

wires connected to Ignition
Control Assembly

100621-06 Thermostat Decal (Not Shown) 1

108871-01E

For more information, visit www.desatech.com

For more information, visit www.desatech.com

22

ILLUSTRATED PARTS BREAKDOWN

Standard Model R200A
Thermostat Models R200AT, RM200AT, B200AT, and REM200AT

ILLUSTRATED PARTS
BREAKDOWN

200 MODELS

39-1

39-4

39-5

39-2

39-3

7-1

39-6

39-4

39-7

Fuel Valve Assembly

(Models Equipped with

Fuel Valve Only)

7-2

7-3

7-4

7-5

2

1

3

37

9

10

16

12

15

13

26

27

(On models

18

without Fuel
Valve Assy,
filter will be
located on top
of fuel tank.)

42

7-7

7-8

38

7-9

7

4

6

24

28

5

8

23 19

39

21

30

20

31

11

25

29

22

7-6

Nozzle Assembly

10-1

10-2

10-3

10-4

10-17

10-16

10-15

10-18

Motor and Pump Assembly

For more information, visit www.desatech.com

For more information, visit www.desatech.com

7-11

10-5

10-14

10-6

10-13

10-7

10-12

7-10

35

36

10-8

10-9

10-11

32

10-10

10-19

41

40

43

33

14

17

14

34

108871-01E

PARTS LIST

200 MODELS

PARTS LIST

Standard Model R200A

Thermostat Models R200AT, RM200AT, B200AT, and REM200AT

23

23

KEY PART
NO. NUMBER DESCRIPTION QTY.

1 107353-10 Upper Shell (Service Part

Will Be Black) 1
2 M15823-27 Screw, #10-16 x 1/2" 8
3 098512-69 Combustion Chamber 1
4 103154-05 Photocell Bracket 1
5 M10908-2 Screw, #6-32 x 3/8" 2
6 M16656-24 Photocell Assembly 1
7
7-1 100735-13 Nozzle Assembly 1
7-2 M10659-1 Nozzle Washer 2
7-3 M10809-1 Nozzle Spring 1
7-4 M8882 Nozzle Sleeve 1
7-5 107272-01 Retaining Ring 1
7-6 102336-03 Nozzle Adapter Bracket 1
7-7 102548-03 Ignitor Kit 1
7-8 103347-01 Belleville Washer 1
7-9 M10908-75 Screw, #6-32 x .88 1
7-10 107273-01 Nozzle Adapter 1
7-11 M50820-02 Barb Fitting 1
8 107992-01 Screw, #10-16 x 3/8" 2
9 102042-01 Fan 1
10
10-1 102001-27 Motor 1
10-2 079975-03 Pump Body 1
10-3 FHPF3-6C Screw, #10-32 x 5/8" 2
10-4 M22009** Rotor Insert 1
10-5 M22456-2** Pump Rotor 1
10-6 M50545 Pump End Cover 1
10-7 M12179*** Intake Filter 1
10-8 M16545 Filter End Cover 1
10-9 M8940
10-10 M10993-1
10-11 M27694
10-12 M22997∞ Plug 1
10-13 M12461-31 Screw, #10-32 x 1" 4
10-14 M12244-1*** Output Filter 1
10-15 M11637*** Lint Filter 1
10-16 M50820-02 Barb Fitting 1
10-17 M8643-2** Blade 4
10-18 M12461-32 Screw, #10-32 x 1.12" 6
10-19 105780-01 Plastic Cap 1
11 M50631 Rubber Bumper 2
12 101206-01 Motor Mounting Bracket 1
13 097785-04 Foam Gasket 2
14 104068-02 Ignition Control Assembly 1
15 NTC-4C Hex Lock Nut, 1/4-20 2

∆ Not available as an assembly ∗∗∗ Included in Filter Kit (Part No. HA3017)
** Included in Rotor Kit (Part No. HA3005) ∞ Included in Pump Adjustment Kit (Part No. HA3020)

108871-01E

∆ Burner Head Assembly 1

∆ Motor and Pump Assembly 1

∞ Steel Ball, 1/4" Diameter 1

∞ Relief Spring 1

∞ Adjusting Screw 1

For more information, visit www.desatech.com

For more information, visit www.desatech.com

KEY PART
NO. NUMBER DESCRIPTION QTY.

16 102756-01 Fan Guard 1
17 M27417 Drain Plug (Includes “o” Ring) 1
18 103523-01 Rubber Bushing 1
19 M51345-03 Fuel Line (Models with Fuel

Valve Assy) 1

M51345-04 Fuel Line (Models without Fuel

Valve Assy) 1
20 M51150-01*** Fuel Filter 1
21 M51345-04 Fuel Line Tube (Models with

Fuel Valve Assy) 1

M51151-02 Fuel Line Tube (Models without

Fuel Valve Assy) 1
22 M10990-3 Rubber Bushing 1
23 M50814-03 Airline 1
24 107353-11 Lower Shell (Service Part

Will Be Black) 1
25 M50104-06 Bushing 2
26 M50104-01 Bushing 1
27 107992-01 Screw, #10-16 x 3/8" 6
28 M11271-8 Clip Nut 8
29 M10908-14 Screw, #8-32 x 3/8" 1
30 108088-06 Fuel Tank 1
31 097702-01 Fuel Cap (Includes Gasket) 1
32 102349-01 P.C. Board Support 5
33 M11143-1 Strain Relief Bushing 1
34 098219-38 Power Cord 1
35 107333-04AA Side Cover 1
36 107992-01 Screw, #10-16 x 3/8" 4
37 099230-01 Screw, Special 2
38 M11084-27 Screw, #10-16 x 1/2" 2
39

39-1 107643-01 Fuel Valve 1
39-2 107336-01 Fuel Valve Bracket 1
39-3 M12461-13 Hex Head Screw, #8-32 x 1/4" 2
39-4 M50820-02 Fitting Barb 2
39-5 102432-01 Screw Hex Hd Sems Ext "B"

39-6 107274-01 Wire Assembly, Red 1
39-7 107274-02 Wire Assembly, White 1
40 097657-03 Thermostat 1
41 M10908-1 Screw, #6-32 x 1/4" 2
42 104905-01 Thermostat Knob 1
43 079010-35 Wire Assembly 1

∆ Fuel Valve Assembly 1

(MODELS EQUIPPED WITH FUEL VALVE ONLY)

#10-16 x 1/2" 2

103814-01 Wire Tie (Not Shown) 1

(For Ignition Control Assembly)

100621-06 Thermostat Decal (Not Shown) 1

24

WHEELS AND HANDLES
110/115/150/155/165/200 Models

WHEELS AND HANDLES

WHEELS AND HANDLE PARTS LIST

KEY PART PART
NO. NUMBER DESCRIPTION QTY.

1 HA2203 Handle (110/115) 2 (If Equipped)

HA2204 Handle (150/155/165/200) 2 (If Equipped)
2 M12345-33 Screw, #10-24 x 1 3/4"6 or 8
3 M12342-3 Wheel Support Frame (110/115) 1

M12831-3 Wheel Support Frame (150/155/165/200) 1
4 NTC-3BZ Hex Nut, #10-24 6 or 8
5 107426-01 Wheel Kit (Contains 2 Wheels

and Cap Nuts) —
6 M28526 Cap Nut 2
7 M51015-01 Axle (110/115) 1

M16801-2 Axle (150/155/165/200) 1

1

2

3

7

5

6

4

For more information, visit www.desatech.com

For more information, visit www.desatech.com

108871-01E

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 dealer or DESA International at 1-866-672-6040
for referral information. Parts Centrals are listed in the Authorized
Service Center booklet supplied with heater.

AIR GAUGE KIT - HA1180

For all models. Special tool to check pump pressure.

ACCESSORIES

25

25

IGNITION CONTROL ASSEMBLY/PHOTOCELL
TESTER - HA1170

Special tool used to test the ignition control assembly and photocell.

HEAVY DUTY WHEELS AND HANDLE KIT
HA1202

For 40/55/60/70,000 Btu Models. For heavy duty applications.
Makes your heater even more portable and convenient.

STANDARD WHEELS AND HANDLE KIT
HA1206

For 40/55/60/70,000 Btu Models. Makes heater even more por­table and convenient. Easy to assemble.

THERMOSTAT KIT - HA1210

Keeps your building at the temperature you select day and night.
Helps economize on fuel.

FUEL TANK FILLER NECK SCREEN - HA2210

This screen/filter drops in fuel tank filler neck. This prefilter allows
for easy cleaning and provides two-stage filtering advantage.

108871-01E

For more information, visit www.desatech.com

For more information, visit www.desatech.com

26

NOTES

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_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________

For more information, visit www.desatech.com

For more information, visit www.desatech.com

108871-01E

27

OWNER'S REGISTRATION FORM

27

Complete registration form and mail or complete on-line registration at www.desatech.com within 30 days after purchase.

Brand:
Model:
Date Purchased:
Serial Number:

(Reddy Heater, Master, Remington, etc.)
(R60, HD15, etc.)

Note:

Keep receipt for warranty verification.

7 or 9 digit number located on product or identification tag.

First Name: Last Name:
Address:
City: State: Zip: Country:
Phone: ( ) - E-Mail:

Please answer the following questions to register your product with DESA International:

1. Who will heater be used by? ❍ Individual ❍ Business

2. Will you use your heater in more than one location? ❍ Yes ❍ No

3. Where will the product be used? (You may select more than one.) ❍ Workshop ❍ Barn ❍ Residential Construction

❍ Commercial Construction ❍ Garage ❍ Factory ❍ Recreation ❍ Warehouse ❍ Utility Shed/Outbuilding
❍ Other ______________________________ (Specify)

4. Cost of product (excluding sales tax)? $________________________________

5. Maintenance/service work will be performed by: ❍ Self ❍ Service Center ❍ Other ___________________________________

6. If you bought this product yourself, did you plan to purchase this type of product before going into the store? ❍ Yes ❍ No

7. Type of store where product was purchased? ❍ Hardware ❍ Propane Dealer ❍ Natural Gas/Utility Co. ❍ Home Center or Builder's Supply
❍ Farm/Ag. Supply ❍ Auto Parts ❍ Warehouse Club ❍ Industrial/Contractor Supply ❍ Rental Store
❍ Discount Store ❍ HVAC Dealer ❍ Other _________________________________________________

8. What is your primary source of heat? ❍ Propane (LP Gas) ❍ Natural Gas ❍ Kerosene ❍ Diesel ❍ Electric ❍ Other________________

9. What motivated you to buy this product? ❍ Sudden Cold Weather ❍ Replace Older Model ❍ D.I.Y. Home Project ❍ Emergency Back-Up Heat
❍ Heater on Sale ❍ Construction Project ❍ Hard to Heat Location ❍ Other ________________________________

10. How did you learn about this product brand? ❍ Advertisement ❍ Relative or Friend ❍ Co-Worker ❍ Store Representative
❍ Store Display ❍ Previously Owned a Heater ❍ Other _________________________________________________(Specify)

11. What other brands did you consider? ❍ None ❍ Master ❍ Remington ❍ All-Pro ❍ Dayton ❍ Universal ❍ Mr. Heater ❍ L.B. White Tradesman
❍ John Deere ❍ Dyna-Glo ❍ Dura-Heat ❍ Paulin ❍ Coleman ❍ Vogelzang American ❍ Other ___________________________________

12. Who selected the product? ❍ Male ❍ Female ❍ Both

13. Level of Education of Purchaser: ❍ High School ❍ Vocation/Technical School ❍ Some College ❍ Completed College ❍ Graduate School

14. Age of Purchaser: ❍ Under 20 ❍ 20 - 29 ❍ 30 - 39 ❍ 40 - 49 ❍ 50 - 59 ❍ 60 or Over

15. Buyer's total annual household income: ❍ Under $19,999 ❍ $20,000 to $34,999 ❍ $35,000 to $49,999
❍ $50,000 to $74,999 ❍ $75,000 to $99,999 ❍ $100,000 and Over

16. What is the population of your area? ❍ Under 10,000 ❍ 10,000 to 25,000 ❍ 25,000 to 50,000 ❍ 50,000 to 100,000
❍ 100,000 to 250,000 ❍ Over 250,000

17. Store where product was purchased:
Name: ______________________________________ City: _____________________________________ State: __________

18. In choosing this product, how important were the following:

Availability
Price
Brand Name
Overall Quality
Heat Output (Btu/Hr Rating)
Variable Heat Output (Btu/Hr)
Made in USA
Warranty
Local Service
Value for Price

Not Somewhat Very

❍
❍
❍
❍
❍
❍
❍
❍
❍
❍

❍
❍
❍
❍
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❍
❍
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❍
❍
❍
❍
❍
❍
❍

Size
Prior Brand Experience
Built-In Thermostat
Ease of Operation
Special Features
Salesperson's Recommendation
Friend/Relative's Recommendation
Portability
Quiet Operation

Not Somewhat Very

❍
❍
❍
❍
❍
❍
❍
❍
❍

❍
❍
❍
❍
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❍
❍

❍
❍
❍
❍
❍
❍
❍
❍
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19. This question will allow us to better understand the demographic profile of our customers. Which of the following best describes you? (not required)
❍ African American ❍ Asian American ❍ Mexican ❍ Puerto Rican ❍ Cuban ❍ Other Hispanic ❍ White ❍ Other ___________________

108871-01E

For more information, visit www.desatech.com

For more information, visit www.desatech.com

TAPE

TM

2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004

Postage

Required

TAPE

OTHER OUTDOOR HEATING PRODUCTS

PROPANE/LP FORCED AIR HEATERS

PROPANE/LP CONVECTION HEATERS

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PROPANE/LP TANK TOP HEATERS

PROPANE/LP AND NATURAL

GAS GARAGE HEATERS

PORTABLE KEROSENE/DIESEL

FORCED AIR HEATERS

PROPANE/LP

PATIO HEATERS

PROPANE/LP AND NATURAL

GAS CHIMENEAS

30

WARRANTY AND REPAIR SERVICE

LIMITED WARRANTY

DESA International warrants this product and any parts thereof, to be free from defects in materials and workmanship for one (1) year from the
date of first purchase when operated and maintained in accordance 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 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, tampering, contaminated fuels, repair using improper parts, or repair by anyone other than an authorized dealer or service center.
Routine maintenance is the responsibility of the owner.

THIS EXPRESS WARRANTY IS GIVEN IN LIEU OF ANY OTHER WARRANTY EITHER EXPRESSED OR IMPLIED, INCLUDING
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

DESA International assumes no responsibility for indirect, incidental or consequential damages. Some states do not allow the exclusion or
limitation of incidental or consequential damages or limitations or exclusions may not apply to you. This Limited Warranty gives you specific
legal rights and you may also have other rights which vary from state to state.

WARRANTY SERVICE

Should your heater require service, return it to your nearest authorized service center. Proof of purchase must be presented with the heater. The
heater will be inspected. A defect may be caused by faulty materials or workmanship. If so, DESA International will repair or replace the heater
without charge.

REPAIR SERVICE

Return the heater to your nearest authorized service center. Each Service Center is independently owned and operated. Repairs not covered by the
warranty will be billed at standard prices. We reserve the right to amend these specifications at any time without notice.

Illustrated parts lists can be obtained free of charge. Send a self addressed stamped envelope to the address listed below. List the heater model
number and the date located in the lower right corner of this page. A service manual may be purchased from the address listed below. Send a check
for $5.00 payable to DESA International.

When writing for information regarding your heater, be sure to include the model number and serial number as shown on the model plate.
For more information about this warranty, write:

TM

2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004

www.desatech.com

Printed in U.S.A.

108871 01

NOT A UPC

For more information, visit www.desatech.com

For more information, visit www.desatech.com

108871-01
Rev. E
02/03

108871-01E