Desa R110M3 Manuel utilisateur

ARL LOGO G 004

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.

Heater Sizes: 70,000 110,000 150,000 BTU/Hr

Featuring: Built-In Thermostat with LCD Display

PORTABLE

FORCED

AIR HEATERS

OWNER’SMANUAL

101697

Safety Information.........................................................................2

Product Identiﬁcation .................................................................... 4

Unpacking .....................................................................................5

Assembly .......................................................................................5

Theory of Operation ......................................................................6

Fuels ..............................................................................................6

Ventilation .....................................................................................7

Operation Without Thermostat .....................................................7

Operation With Thermostat........................................................... 8

Storage ........................................................................................... 10

Preventative Maintenance Schedule ............................................. 10

Troubleshooting.............................................................................11

Service Procedures ........................................................................ 13

Upper Shell Removal..............................................................13

Fan........................................................................................... 13

Air Output, Air Intake, and Lint Filters..................................14

Pump Pressure Adjustment..................................................... 14

Fuel Filter................................................................................ 15

Spark Plug............................................................................... 15

Nozzle .....................................................................................16

Pump Rotor ............................................................................. 17

Speciﬁcations................................................................................. 18

Wiring Diagram............................................................................. 18

Maintenance Kits...........................................................................19

Accessories ....................................................................................19

Warranty and Repair Service ........................................................Back Cover

CONTENTS SECTION PAGE

WARNINGS

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.

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.

DANGER

Carbon monoxide poisoning may lead to death!

SAFETY

INFORMATION

Continued

101697

SAFETY

INFORMATION • Use only kerosene or No. 1 fuel oil 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 thoroughly familiar

with the manufacturer's instructions and applicable federal, state, and local

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 extinguished 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 25 feet from heaters, torches,

welding equipment, and similar sources of ignition (exception: the fuel reser-

voir integral with the heater unit).

g) Whenever possible, fuel storage shallbeconfined toareas where floorpenetra-

tions 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 authority

having jurisdiction.

• Never use heater where gasoline, paint thinner, or other highly ﬂammable

vapors are present. Never use heater in areas with high dust content.

• Minimum heater clearances from combustibles:

Outlet: 8 Ft. Sides: 4 Ft. Top: 4 Ft. Rear: 4 Ft.

• Heaters used in the vicinity of tarpaulins, canvas, or similar enclosure

materials shall be located a safe distance from such materials. The recom-

mended minimum safe distance is 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.

• Use only in well vented areas. Provide at least three square feet of fresh,

outside air for each 100,000 BTU/Hr of rating. This heater produces carbon

monoxide, which is listed by the State of California as a reproductive toxin

under Proposition 65.

• Use only a three-prong, grounded extension cord. Use only with the electrical

voltage and frequency speciﬁed on model plate.

• Unplug heater when not in use.

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

work to front or rear of heater.

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

• When moving or storing heater, keep heater in a level position or fuel spillage

may occur.

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

• When used with thermostat, heater may start anytime.

• Keep children and animals away from heater.

• Never use heater in living or sleeping areas.

• Follow all local ordinances and codes when using heater.

Continued

101697

PRODUCT

IDENTIFICATION

Upper Shell

Hot Air Outlet

Lower Shell

Side Cover

Fan Guard

Handle

Figure 3 - Flame Control Display

Figure 1 - 70,000 BTU/Hr Model

Air Filter

End Cover

Fuel Cap

Fuel Tank

Power Cord

Lower

Shell

Side Cover

Figure 2 - 110,00 and 150,000 BTU/Hr Models

Upper Shell

Fuel Cap

Power Cord

Fan Guard

Hot Air

Outlet

Fuel Tank

OFF Button

ON/Reset Button

Flame Control Display

(see Figure 3, below)

Flame Control Display

(see Figure 3, below)

101697

These models are furnished with wheels and a front handle. Some models are

furnished with a rear 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:

When installing wheels, point extended hub of wheels toward

wheel support frame (see Figure 4).

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 front handle (and rear 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.

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

2. Remove all items from carton.

3. Check items for shipping damage. If heater is damaged, promptly inform dealer

where you bought heater.

ASSEMBLY

(For 110,000 and 150,000

BTU/Hr Models Only)

UNPACKING

Figure 4 - Wheel and Handle Assembly,

110,000 and 150,000 BTU/Hr Models Only

Front

Handle

Screw

Hot Air

Outlet

Fuel

Tank

Flange

Rear

Handle

Air

Inlet

Extended

Hub

Axle

Nut

Cap Nut

Wheel

Support

Frame

101697

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 ignition system (part of the flame control) sends

voltage to the spark plug. The spark plug ignites the fuel and air mixture.

The Flame Control System: This system monitors the combustion process

inside the heater. The flame control will shut down the heater when it is out of

fuel or when flame is unstable.

THEORY CUTAWAY PFA/OV 003

Air For Fuel

System Air For Combustion

And Heating Fuel

Combustion

Chamber Air

Intake

Filter

Clean

Heated

Air Out

Cool

Air

Output

Filter

Fuel

Tank

Figure 5 - Cross Section Operational View

Burner

Head

Spark

Plug

Motor

Fan

Nozzle

Air Pump

Air Line

To Burner

Fuel

Filter Ignition System

Flame Control

WARNING

FUELS

Use only kerosene or No. 1 fuel oil to avoid risk of ﬁre or

explosion. Never use gasoline, naphtha, paint thinners,

alcohol, or other highly ﬂammable fuels.

Do not use heavy fuels such as No. 2 fuel oil or No. 2 Diesel. Using heavy fuels

will result in:

• clogged fuel ﬁlter and nozzle

• carbon build up on spark plug

• the need of non-toxic anti-icer in fuel during very cold weather

IMPORTANT:

Use a KEROSENE ONLY storage container. Be sure storage

container is clean. Foreign matter such as rust, dirt, or water will cause the flame

control to shut down heater. Foreign matter may also require you to clean fuel

system often.

101697

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 a fresh air opening of at least three square feet for each 100,000 BTU/Hr

rating. Provide extra fresh air if more heaters are being used.

Example:

A 150,000 BTU/Hr heater requires one of the following:

• a two-car garage door raised six inches

• a single-car garage door raised nine inches

• two, thirty-inch windows raised twelve inches

OPERATION

WITHOUT

THERMOSTAT

WARNING

To Start Heater (for continuous operation without thermostat)

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.

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 display ambient temperature and “OFF” (see Figure 6). If

not, check status of display and refer to Troubleshooting, pages 11 and 12.

6. Press (ON/Reset) Button (see Figure 6) until display flashes. Heater will

start when button is released.

Review and understand the warnings in the Safety

Information Section. They are needed to safely operate this

heater. Follow all local codes when using this heater.

Continued

Figure 6 - ON/Reset Button Location

ON/Reset Button

101697

OPERATION

WITHOUT

THERMOSTAT

To Stop Heater

Press (OFF) button.

Continued

OFF Button

To Restart Heater

Repeat steps under To Start Heater, page 7.

Review and understand the warnings in the Safety

Information Section. They are needed to safely operate this

heater. Follow all local codes when using this heater.

OPERATION

WITH

THERMOSTAT

WARNING

To Start Heater (with thermostat operation)

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.

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 display ambient temperature and “OFF” (see Figure 6, page

7). If not, check status of display and refer to Troubleshooting, pages 11 and 12.

6. Press button until display flashes. Release button. Heater will flash the

current thermostat set temperature (F˚) for 10 seconds. Press and hold

button to increase thermostat setting or button to decrease thermostat

setting. Display will automatically advance to next screen 4 seconds after the

last adjustment.

Figure 8 - Adjusting Thermostat

Figure 7 - OFF Button Location

101697

7. Display alternates between “th” and the temperature selected. Heater has

accepted the new thermostat setting. Press button to activate the new

thermostat setting and start heater operation with thermostat.

NOTE:

This thermostat has a 6˚F differential.

Example:

With thermostat set at

72˚F, the heater will cycle ON if the ambient temperature drops to 69˚F. The

heater will cycle OFF when the ambient temperature rises to 75˚F.

To Change Thermostat Setting During Operation

1. Press button until display flashes. The heater will stop and the display will

flash the current thermostat setting.

2. Press and hold button to increase thermostat setting or button to decrease

thermostat setting. Display will automatically advance to next screen 4 seconds

after the last adjustment.

3. Display alternates between “th” and the temperature selected . Heater has

accepted the new thermostat setting. Press button to activate the new

thermostat setting and start heater operation with thermostat.

To Stop Heater

Press (OFF) button.

Figure 9 -

Alternating Between “th” and the Temperature Selected

To Restart Heater

Repeat steps under Operation With Thermostat, page 8 to operate heater with

thermostat. Refer to step under Operation Without Thermostat, page 7 to operate

heater without thermostat.

Figure 10 - OFF Button Location

OFF Button

101697

STORAGE 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 used.

3. Add one gallon of clean kerosene to fuel tank.

4. Attach fuel cap.

5. Move heater forwards and backwards to stir fuel.

6. Remove fuel cap or drain plug and drain fuel tank. Be sure all fuel is removed.

7. Replace fuel cap or drain plug. Properly dispose of old and dirty fuel.

8. 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

Item How Often How To

Fuel tank Flush every 150-200 hours See Storage 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 14.

Air intake Wash and dry with soap and See Air Output, Air Intake,

ﬁlter water every 500 hours of op- and Lint Filters, page 14.

eration or replace as needed.

Fuel ﬁlter Clean twice a heating season See Fuel Filter, page 15.

or replace as needed.

Spark plug Clean and regap every 2,000 See Spark Plug, page 15.

hours operation or replace

as needed.

Fan blades Clean each season or as needed. See Fan, page 13.

Motor Not required/permanently lubricated

Never service heater while it is plugged in, operating, or

hot. Severe burns and electrical shock can occur.

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