Desa SB600D, SB350D User Manual

HIGH PRESSURE

PORTABLE

FORCED

AIR HEATERS

OWNER’S MANUAL

600 SIDE

350 SIDE

Heater Sizes: 350,000 and 600,000 Btu/Hr

Models: SB350D and SB600D

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.

PV 027

PV 026

ARL LOGO

®

G 004

HIGH PRESSURE PORTABLE FORCED AIR HEATER 350,000 AND 600,000 BTU/HR

SAFETY INFORMATION

WARNINGS

WARNING ICON G 001

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 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 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 authority having jurisdiction.

• Never use heater 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 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. Before using heater, provide at least a threesquare-foot opening 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 in places free of ﬂammable vapors or high dust content.

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

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

• Minimum heater clearances from combustibles:

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

• 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.

• Keep children and animals away from heater.

• Unplug heater when not in use.

• This heater has a built-in thermostat. Plugged-in heater may start at anytime.

• Never use heater in living or sleeping areas.

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

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

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

• Warning to New York City Residents

For Use Only At Construction Sites

in accordance with applicable NYC codes under NYCFD certificate of approval #4803, #4899, #4908, #4909, or #4934.

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OWNER’S MANUAL

PRODUCT IDENTIFICATION

Hot Air Outlet

Lower Shell

Fuel Cap

Thermostat

Figure 1 - 350,000 Btu/Hr Model

Hot Air Outlet

Upper Shell

Flame-Out Control Reset Button

UNPACKING

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

2. Remove heater from shipping container.

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

Motor and Pump Assembly

Power Cord

Fuel Tank

Lower Shell

Fuel Cap

Thermostat

Figure 2 - 600,000 Btu/Hr Model

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Upper Shell

Flame-Out Control Reset Button

3

Motor and Pump Assembly

Power Cord

Fuel Tank

HIGH PRESSURE PORTABLE FORCED AIR HEATER 350,000 AND 600,000 BTU/HR

THEORY OF OPERATION

The Fuel System: The motor turns the fuel pump. The fuel pump pulls fuel from the fuel tank. The fuel pump pushes fuel through a ﬁlter and a solenoid valve and out the burner head nozzle. 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. It also allows the fan to continue running after normal shutdown of heater. This cools the combustion chamber.

Combustion Chamber

FUELS

WARNING: 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:

storage container. Be sure storage container is clean. Foreign matter such as rust, dirt, or water will cause flame-out control to shut down heater. Foreign matter may also require you to clean fuel system often.

Spark Plug

Burner Head

Use a KEROSENE ONLY

Solenoid Valve

Fan

Fuel Pump/ Fuel Filter

Motor

VENTILATION

WARNING: 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.

Fresh Air Opening Requirements

Square Feet

Heater Size Opening

350,000 Btu/Hr 10.5

600,000 Btu/Hr 18.0

Note:

If you use more than one heater,

provide extra fresh air. Provide a fresh air opening of at least three square feet for each 100,000 Btu/Hr rating.

Clean Heated Air Out

Fuel Tank

Figure 3 - Cross Section Operational View

Nozzle

Fuel Line To Solenoid Valve

Air for Combustion and Heating

Electronic Ignitor

Fuel

4

Cool Air In

Fuel Pickup Line

Fuel Filter

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OPERATION

WARNING: Review and un-

derstand the warnings in the

Safety Information

2. They are needed to safely operate 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. Set thermostat dial to desired temperature.

Note:

Thermostat setting must be

higher than surrounding air temperature.

5. Plug power cord of heater into threeprong, grounded extension cord. Extension cord must be at least six feet long.

WARNING: Use only a threeprong, grounded extension cord. Use cord with proper wire size to assure 120 volt operation. See

Extension Cord Wire Size Requirements

6 to 100 feet long, use 14 AWG rated cord

101 to 200 feet long, use 12 AWG rated cord

201 to 300 feet long, use 10 AWG rated cord

301 to 400 feet long, use 8 AWG rated cord

401 to 500 feet long, use 6 AWG rated cord

6. Plug extension cord into standard 120 volt/60 hertz, three-hole, grounded outlet.

7. The motor will start when extension cord is plugged into outlet. The heater should ignite at once. If heater does not ignite, restart heater. To restart heater, wait 60 seconds, then push in flameout control reset button. Flame-out control reset button is at rear of heater near power cord (see Figure 4).

Note:

A cold heater may affect the thermostat setting. This thermostat is a generalheating control. It is not intended for precise temperature control. Adjust thermostat until heater cycles at the desired setting.

below.

section, page

OWNER’S MANUAL

Note:

If starting heater for ﬁrst time, you may need to restart heater several times before heater ignites. You may also have to do this after taking heater out of storage. To facilitate starting, remove the canister bottom from the pump's fuel filter and fill with fuel. Reassemble filter (see Pump Fuel Filter, page 12).

Flame-Out Control Reset Button

Figure 4 - Flame-Out Control Reset Button

To Stop Heater

CAUTION: Never unplug

heater while heater is running. Heater must go through purge cycle. The purge cycle cools the combustion chamber. Damage to heater can occur if combustion chamber is not cooled. Do not restart heater until purge cycle is complete.

1. Turn thermostat dial to lowest tempera-

ture setting. This will cause heater ﬂame to go out. The motor will continue to run during the purge cycle. This allows the fan to cool the combustion chamber. When the purge cycle is ﬁnished, the motor will stop. Do not unplug heater until purge cycle is ﬁnished.

2. Unplug extension cord from outlet.

3. To temporarily stop heater, set thermo-

stat at a temperature lower than air around heater. Heater will cycle back on if air temperature around heater matches thermostat setting.

To Restart Heater

CAUTION: Do not restart heater until purge cycle is ﬁnished. The purge cycle cools the combustion chamber.

1. Wait until purge cycle is ﬁnished after stopping heater.

2. Repeat steps under To Start Heater.

STORING, TRANSPORTING, OR SHIPPING

Note:

If shipping transport companies re-

quire fuel tanks to be empty.

1. Drain all fuel from fuel ﬁlters, fuel lines, and pump (see Fuel Filters [Tank Fuel Filter], page 12).

2. Clean and ﬂush fuel ﬁlter and canister attached to fuel pump (see Fuel Filters [Pump Fuel Filter], page 12).

3. Remove drain plug and drain fuel tank.

4. Replace drain plug.

5. 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.

6. Replace fuel cap or drain plug. Properly dispose of old and dirty fuel. Check with local automotive service stations that recycle oil.

7. Add two gallons (350,000 Btu/Hr) or three gallons (600,000 Btu/Hr) of clean kerosene or No. 1 fuel oil to fuel tank.

8. Replace fuel cap.

9. Operate heater for 5 minutes (see Op- eration).

10. Stop heater and let cool completely.

11. Remove drain plug and drain fuel tank.

12. Replace drain plug.

13. Properly dispose of old and dirty fuel.

14. If storing, store heater in a dry location. Make sure storage place is free of dust and corrosive fumes.

IMPORTANT:

summer months for use during next heating season. Using old fuel could damage heater.

Do not store kerosene over

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5

HIGH PRESSURE PORTABLE FORCED AIR HEATER 350,000 AND 600,000 BTU/HR

PREVENTATIVE MAINTENANCE SCHEDULE

Item

Fuel tank

Filler neck screen

Fuel ﬁlter assembly (Fuel tank)

Fuel ﬁlter lines

Fuel ﬁlter (Pump)

Spark plug

Fan blades and air deﬂectors

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

How Often

Flush every 150-200 hours of operation or as needed

Check for particles in fuel when ﬁlling fuel tank. Clean when dirty

Clean twice a heating season or replace as needed

Check and tighten loose connections occasionally

Clean fuel ﬁlter element every 250 hours

Clean and regap every 300 hours of operation or replace as needed

Clean each season or as needed

How To

See Storing, Transporting, or Shipping, page 5

Lift out of fuel tank and rinse with clean kerosene

See Fuel Filters, page 12

See Fuel Lines, Page 12

See Fuel Filters, page 12

See Spark Plug, page 10

See Fan Blades and Air Deflectors, page 10

Air passages around burner head

Motor

Check each season for dirt and debris

Not required, permanently lubricated

Remove debris and trash with a clean, soft cloth

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OWNER’S MANUAL

TROUBLESHOOTING

Note:

For additional help, visit DESA

International’s Technical Service web site at www.desatech.com.

OBSERVED PROBLEM

Motor does not start when heater is plugged in and thermostat setting is higher than surrounding air temperature

WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. Only a qualiﬁed service person should service and repair heater.

POSSIBLE CAUSE REMEDY

1. No power or low voltage at heater due to: A) Damaged power cord or extension cord B) Wrong size extension cord C) Heater plugged into outlet with voltage lower than 120 volt

2. Loose electrical connections

3. Motor overload protector tripped due to: A) Dirty fan B) Debris pulled into fan area by fan C) Binding pump D) Low voltage

1. A) Check condition of power cord or extension cord. Repair or replace if damaged B) Use extension cord with proper wire size (see To Start Heater, page 5) C) Make sure heater is plugged into 120 volt/60 hertz outlet

2. Check connections. Tighten if loose

3. A) See Fan Blades and Air Deflectors, page 10 B) Remove debris from fan and fan guard area C) Turn fan by hand. If fan is hard to turn, see Pump, page 11 D) See steps B and C under item 1 above

Note:

Be sure to reset motor overload protector by pressing reset button on top of motor

4. Flame-out control not reset

5. Damaged flame-out control

6. Damaged power relay

7. Damaged thermostat

8. Binding pump

4. Press and release flame-out control reset button. See Figure 4, page 5 for button location

5. Replace flame-out control

6. Replace power relay

7. Replace thermostat

8. Turn fan by hand. If fan is hard to turn, see Pump, page 11

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Continued

HIGH PRESSURE PORTABLE FORCED AIR HEATER 350,000 AND 600,000 BTU/HR

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

Heater will not ignite, but motor runs for a short period of time.

POSSIBLE CAUSE REMEDY

1. A) Fuel tank empty B) Water in fuel C) Wrong fuel

2. Dirt in nozzle

3. Very low temperature may cause fuel to thicken and not ﬂow

4. Dirty fuel ﬁlters

5. Wrong pump pressure

6. Spark plug wire disconnected from plug

7. Spark plug problems due to: A) Wrong gap B) Plug wet with fuel C) Carbon deposits on plug D) Damaged plug

1. A) Add fuel to tank B) Check fuel tank for bubbles of water in bottom. If found, remove fuel (see Storing, Transporting, or Shipping, page

5). Clean tank and fuel ﬁlters (see Fuel Filters, page 12). Fill with clean fuel C) Remove wrong fuel (see Storing, Transporting, or Shipping, page 5). Clean tank and fuel ﬁlters (see Fuel Fil- ters, page 12). Fill with correct fuel

2. Replace nozzle (see Nozzle, page 10)

3. Move heater to warmer place until fuel ﬂows freely

4. Clean fuel ﬁlters (see Fuel Filters, page 12)

5. Adjust pump pressure (see Pump Pres- sure Adjustment, page 11)

6. Connect spark plug wire to spark plug

7. A) Adjust electrode gap to .075" (see Spark Plug, page 10) B) Clean fuel from spark plug with clean, soft cloth C) Replace plug if heavily coated with carbon (see Spark Plug, page 10) D) Inspect plug for worn or eroded electrodes. If found, replace plug (see Spark Plug, page 10)

8. Solenoid valve not opening

9. Damaged electronic ignitor

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8

8. Check electrical connections and voltage to solenoid. If good, replace solenoid valve

WARNING: High Voltage!

9. Replace electronic ignitor

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TROUBLESHOOTING

Continued

OWNER’S MANUAL

OBSERVED PROBLEM

Heater ignites, but flame-out control shuts off heater after a short period of time

Heater burns, but puffs of smoke can be seen Heater does not burn steady Heater burns with odor Heater smokes continuously

POSSIBLE CAUSE REMEDY

1. Wrong pump pressure

2. Dirty fuel ﬁlters

3. Dirt in nozzle

4. Dirty photocell lens

5. Open or damaged photocell

6. Bad flame-out control

7. Damaged fan switch

1. Wrong pump pressure

2. A) Heater almost out of fuel B) Water condensation in fuel tank C) Wrong fuel

1. Adjust pump pressure (see Pump Pres- sure Adjustment, page 11)

2. Clean fuel ﬁlters (see Fuel Filters, page 12)

3. Replace nozzle (see Nozzle, page 10)

4. Clean photocell lens with clean cotton swab

5. Replace photocell

6. Replace flame-out control

7. Replace fan switch

1. Adjust pump pressure ( see Pump Pres- sure Adjustment, page 11)

2. A) Add fuel to tank B) Check fuel tank for bubbles of water in bottom. If found, remove fuel (see Storing, Transporting, or Shipping, page

5). Clean tank and fuel ﬁlters (see Fuel Filters, page 12). Fill with clean fuel C) Remove wrong fuel (see Storing, Transporting, or Shipping, page 5). Clean tank and fuel ﬁlters (see Fuel Fil- ters, page 12. Fill with correct fuel

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3. Dirty fuel ﬁlters

4. Air leak in suction system

5. Dirty nozzle

6. Low voltage causing motor to operate below rated speed

7. Loose fuel line

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3. Clean fuel ﬁlters (see Fuel Filters, page 12)

4. Tighten all fuel line connections (see Fuel Lines, page 12)

5. Replace nozzle (see Nozzle, page 10)

6. Check voltage at heater. Voltage at heater should be not less than 90% of rated voltage (108V minimum for 120V heaters)

7. Check and tighten all fuel line connections (see Fuel Lines, page 12)

HIGH PRESSURE PORTABLE FORCED AIR HEATER 350,000 AND 600,000 BTU/HR

SERVICE PROCEDURES

WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. Only a qualiﬁed service person should service and repair heater.

Upper Shell Removal

1. Remove screws along each side and top of heater using 5/16" nut-driver. These screws attach upper and lower shells together (see Figure 5).

2. Lift upper shell off.

Upper Shell

Figure 5 - Upper Shell Removal, 600,000 Btu/Hr Model

Fan Blades and Air Deﬂectors

1. Remove upper shell (see column 1).

2. Clean fan blades and air deﬂectors with clean, soft cloth moistened with kerosene or solvent (see Figure 6).

3. Dry fan blades and air deﬂectors thoroughly.

4. Replace upper shell.

Air Deﬂector

Fan Blade

Figure 6 - Fan Blades and Air Deﬂectors

Spark Plug

1. Remove upper shell (see column 1).

2. Remove spark plug wire from spark plug (see Figure 7).

3. Remove spark plug from burner head using 13/16"

open-end wrench (see Figure 7).

4. Replace spark plug if damaged or heavily coated with carbon.

5. Clean and regap spark plug electrodes to .075 inch (see Figure 8).

6. Install spark plug in burner head.

7. Attach spark plug wire to spark plug.

8. Replace upper shell.

Burner Head

Spark Plug

Nozzle

1. Remove upper shell (see column 1).

2. Remove fuel line from solenoid valve using 7/16" wrench.

3. Remove spark plug wire from spark plug.

4. Remove spark plug from burner head using 13/16" open-end wrench.

5. Remove ﬁve screws using 5/16" nut-driver and remove burner

head from combustion chamber.

6. Place burner head into vise and lightly tighten.

7. Carefully remove nozzle from burner head using 5/8" socket wrench (see Figure 9).

8. Inspect nozzle for damage. If damaged or clogged, replace nozzle.

9. Make sure plug is in place on burner head.

10. Replace nozzle into burner head and tighten ﬁrmly (175-200 inch-pounds).

11. Attach burner head to combustion chamber.

12. Install spark plug in burner head.

13. Attach spark plug wire to spark plug.

14. Attach fuel line to solenoid valve. Tighten ﬁrmly.

15. Replace upper shell.

Nozzle

Plug

Burner Head

Figure 9 - Replacing Nozzle

Fuel Line

Spark Plug

Spark Plug Wire

Solenoid Valve

Spark Plug Wire

Figure 7 - Spark Plug Removal

Figure 8 - Spark Plug Gap

10

.075 inch

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OWNER’S MANUAL

SERVICE PROCEDURES

Continued

Pump Pressure Adjustment

1. Remove pressure gage plug from fuel pump port marked “GAGE.”

2. Install accessory pressure gage (part number M4574) to fuel pump port marked “GAGE” (see Figure 10).

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

4. Adjust pressure. Use small ﬂat blade screwdriver to turn slotted screw at fuel pump port marked “PRESS ADJ.” Turn screw clockwise to increase pressure. Turn screw counterclockwise to decrease pressure. See speciﬁcations at right for correct pressure for each model.

5. Stop heater (see page 5).

6. Remove pressure gage. Replace pressure gage plug in fuel pump port marked “GAGE.”

Pressure Gage

psi

Fuel Pump Port Marked “GAGE”

Model Pump Pressure

350,000 Btu/Hr 100 PSI 600,000 Btu/Hr 110 PSI

Figure 10 - Adjusting Pump Pressure

Fuel Pump Port Marked “PRESS ADJ”

Pump

(Procedure if Pump is Binding)

1. Remove upper shell (see page 10).

2. Loosen hex screw on flange clamp at rear of motor with

5/16" nut-driver (see Figure 11).

3. Turn fan with hand (see Figure 12).

4. If fan turns freely, tighten screw on ﬂange clamp.

5. If fan does not turn freely, replace pump.

6. Replace upper shell.

Hex Screw On Flange Clamp

Figure 11 - Location of Screw on Flange Clamp

Figure 12 - Turning Fan with Hand

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Continued

11

HIGH PRESSURE PORTABLE FORCED AIR HEATER 350,000 AND 600,000 BTU/HR

SERVICE PROCEDURES

Continued

Fuel Lines

(Procedure for tightening fuel lines)

1. Remove upper shell (see page 10).

2. Use an adjustable wrench as a backup on 90° fittings.

3. Use 7/16" wrench and tighten fuel lines at solenoid valve (see Figure 13), pump, and pump fuel ﬁlter assembly (see Figure 14).

Burner Head

Fuel Filters

A. Tank Fuel Filter

1. Disconnect fuel lines from pump and pump fuel ﬁlter assembly with 7/16" wrench (see Figure 15).

2. Carefully pry fuel ﬁlter loose from fuel tank with ﬂat end of screwdriver.

3. Inspect fuel ﬁlter for water or dirt.

4. Rinse fuel ﬁlter and fuel lines with clean kerosene.

5. Replace fuel ﬁlter into fuel tank.

6. Connect fuel lines to pump and pump fuel ﬁlter assembly.

Pump Fuel Filter Assembly

B. Pump Fuel Filter

1. Unscrew canister bottom from canister top with adjustable pliers.

2. Remove fuel ﬁlter and gasket from canister bottom (see Figure 16).

3. Inspect canister bottom and fuel ﬁlter for water droplets or dirt.

4. Rinse canister bottom in clean kerosene.

5. Wipe inside of canister bottom dry with clean cloth.

6. Rinse fuel ﬁlter in clean kerosene.

7. Put clean fuel ﬁlter and gasket back in canister bottom.

8. Screw canister bottom into canister top.

9. Tighten securely.

Canister Top

Fuel

Line Solenoid Valve

Figure 13 - Fuel Line at Solenoid Valve

Pump Fuel Filter Assembly

Pump

Fuel Lines

Figure 14 - Fuel Lines at Pump and Pump Fuel Filter Assembly

Fuel Lines

Fuel Filter

Figure 15 - Removing Tank Fuel Filter

Gasket

Fuel Filter

Canister Bottom

Figure 16 - Fuel Pump Filter and Canister

12

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OWNER’S MANUAL

SPECIFICATIONS

350,000 Btu/Hr 600,000 Btu/Hr

Output Rating (Btu/Hr) 350,000 600,000 Fuel Use Only Kerosene or No. 1 Fuel Oil Fuel Tank Capacity (U.S. Gallons) 30 36 Fuel Consumption (Gallons Per Hr) 2.5 4 Electric Requirements 120V/60 Hz 120V/60 Hz Amperage (Normal Run) 7.1 11 Motor RPM 1725 1725 Fuel Pump Pressure (PSI) 100 110 Spark Plug Gap .075" .075" Weight (approx. lbs.) Dry 180 285

With Full Fuel Tank 390 550

WIRING DIAGRAM

75

BA

RELAY

WHITE

BLACK

RED

BLACK

PLUG

120V 60Hz

132

BLACK

GREEN

WHITE

FAN

SWITCH

Figure 17 - Wiring Diagram

BLACK BLACK

RED ORANGE

WHITE

ELECTRONIC

THERMOSTAT B

WHITE

MOTOR

WHITE

SPARK

PLUG

WHITE

TERMINAL

BOARD

IGNITOR

ORANGE

TERMINAL

BOARD

SOLENOID

VALVE

PHOTOCELL

WHITE

FLAME-OUT

YELLOW

BLUE

CONTROL

R

RED

RESET

BUTTON

BLUE

MAINTENANCE KITS

Kit Part Number

Flame-Out Control HA3003 Spark Plug HA3012

ACCESSORY

Purchase this heater accessory from your nearest dealer or service center. If they cannot supply this accessory, either contact your nearest Parts Central or DESA International's Parts Department at 1-800972-7879 for information. Parts Centrals are listed in the Authorized Service Center booklet supplied with heater. You can also write to the address listed on the back page of this manual.

FUEL PRESSURE GAGE M4574

Special tool to check fuel pump pressure

TECHNICAL SERVICE

You may have further questions about installation, operation, or troubleshooting.

If so, contact DESA International’s Technical Service Department at 1-800-323-5190.

You can also visit DESA International’s Technical Services web site at

www.desatech.com.

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13

HIGH PRESSURE PORTABLE FORCED AIR HEATER 350,000 AND 600,000 BTU/HR

ILLUSTRATED PARTS BREAKDOWN

SB350D 350,000 BTU/HR

1

2

3

2

4

5

21

2

6

7

8

9

20

25

31

21

32

34

19

26

27

33

28

22

13

29

10

4

13

11

23

30

20

34

2

39

12

16

24

14

15

17

18

41

36

35

37

38

14

2

4

40

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OWNER’S MANUAL

PARTS LIST

SB350D 350,000 BTU/HR

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Repair Service on the back page of this manual.

REF. NO. PART NO. DESCRIPTION QTY.

1 099329-02 Upper shell model SB350D (Yellow) 1 2 M11084-27 Screw, #10-16 x 1/2" 15 3 M50542-01 Combustion chamber & shield 1 4 M30865-02 Bushing 7 5 M50086 Air deﬂector 5 6 † Burner head assembly 1 7 M16656-18 Photocell assembly 1 8 M50121 Fan 1

9 M50097-01AA Fan guard 1 10 M51336-02 Fan switch 1 11 M51160-01 Fan switch cover 1 12 M50278 Sleeve 1 13 M11084-26 Screw, #10-16 x 3/8" 13 14 † Motor & pump assembly 1 15 099896-01 Power cord 1 16 M50295 Fuel line 1 17 M50050 Ignition boot 1 18 102482-04 Electronic Ignitor 1 19 099329-01 Lower shell model SB350D (Yellow) 1 20 M11271-8 Clip nut 16 21 M11084-3 Screw, #12-14 x 1/2" 14 22 M50104-02 Bushing 2 23 099509-01 Wire harness 1 24 M50115-01 Fuel line assembly 1 25 M50062-03 Front handle 1 26 097702-01 Fuel cap 1 27 HA2210 Filler neck screen 1 28 HC4-18C Screw, 1/4-20 x 2 1/4"6 29 M51043-01 Screw, 1/4-20 x 1 1/2"2 30 M50062 Rear handle 1 31 098513-05 Fuel tank 1 32 M50063 Wheel support frame 1 33 M18774 Axle 1 34 NTC-4C Hex lock nut, 1/4-20 8 35 M50389 Wheel 2 36 C5-10C Cotter pin, 5/32 x 1 1/4"2 37 WP-10C Flatwasher, 5/8" 4 38 M50296 Wheel spacer 2 39 M27417 Drain plug 1 40 099895-01 Thermostat 1 41 M11084-29 Screw, #10-16 x 3/4" 2

106029

†Not available as complete assembly. See page 18.

15

HIGH PRESSURE PORTABLE FORCED AIR

1

2

3

4

5

13

6

7

45

46

8

9

10

11

13

14

21

18

17

15

16

23

22

24

25

33

2

4

28

30

26

27

34

25

16

2

35

36

41

42

15

43

44

39

38

37

15

29

12

40

2

19

20

2

4

31

32

47

HEATER 350,000 AND 600,000 BTU/HR

ILLUSTRATED PARTS BREAKDOWN

SB600D 600,000 BTU/HR

16

106029

OWNER’S MANUAL

PARTS LIST

SB600D 600,000 BTU/HR

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Repair Service on the back page of this manual.

REF. NO. PART NO. DESCRIPTION QTY.

1 099329-04 Upper shell model SB600D (Yellow) 1 2 M11084-27 Screw, #10-16 x 1/2" 28 3 M50543-01 Combustion chamber & shield 1 4 M30865-02 Bushing 5 5 M50157 Air deﬂector 5 6 † Burner head assembly 1 7 104679-01 Photocell assembly 1 8 M50194 Fan 1

9 M50186-01AA Fan guard 1 10 M51336-02 Fan switch 1 11 M51160-01 Fan switch cover 1 12 M50278 Sleeve 1 13 M11084-26 Screw, #10-16 x 3/8" 15 14 † Motor & pump assembly 1 15 NTC-4C Hex nut, 1/4-20 18 16 M11271-8 Clip nut 18 17 M11084-3 Screw, #12-14 x 1/2" 4 18 M50104-02 Bushing 2 19 099329-03 Lower shell model SB600D (Yellow) 1 20 M50119-01 Fuel line 1 21 099896-01 Power cord 1 22 M50388AB Support bracket model SB600D (Yellow) 2 23 HC4-3C Screw, 1/4-20 x 3/8" 4 24 M50224 Front handle 1 25 M51043-01 Screw, 1/4-20 x 1 1/2"6 26 097702-01 Fuel cap 1 27 HA2210 Filler neck screen 1 28 099509-02 Wire harness 1 29 M28872-01 Rear handle 1 30 M50115-02 Fuel line assembly 1 31 M50050 Ignition boot 1 32 102482-04 Electronic Ignitor 1 33 098513-07 Fuel tank 1 34 HC4-22C Screw, 1/4-20 x 2 3/4"8 35 M28140-02 Wheel support frame 1 36 M18774 Axle 1 37 M27417 Drain plug 1 38 RC1-3C Screw, #6-32 x 3/8" 2 39 099895-01 Thermostat 1 40 M25121B Thermostat bracket (Black) 1 41 M50389 Wheel 2 42 C5-10C Cotter pin, 5/32 x 1 1/4"2 43 WP-10C Flatwasher, 5/8" 4 44 M50296 Wheel spacer 2 45 104413-01 Photocell Bracket 1 46 M10908-2 Screw, #6-32 x 3/8" 2 47 M11084-29 Screw, #10-16 x 3/4" 2

** Internal lockwasher No. 6 2 NPC-1C Nut, 6-32 2

106029

† Not available as complete assembly. See page 18.

Not shown.

** Standard hardware item

17

HIGH PRESSURE PORTABLE FORCED AIR HEATER 350,000 AND 600,000 BTU/HR

Burner Head Assembly 350,000 and 600,000 Btu/Hr

REF NO. PART NO. DESCRIPTION QTY.

1 M10908-2 Screw, #6-32 x 3/8"

(350,000 Btu/Hr Only) 2

2 099229-01 Photocell bracket

(350,000 Btu/Hr Only) 1 3 HA3012 Spark plug 1 4 M50112 Nozzle (350,000 Btu/Hr) 1

M30765 Nozzle (600,000 Btu/Hr) 1 5 M51170-01 Plug 1 6 M50924-02 Burner head body 1 7 69246 Straight nipple 1 8 M50077 Solenoid valve 1 9 M50297 Compression elbow 1

Motor and Pump Assembly 350,000 and 600,000 Btu/Hr

REF. NO. PART NO. DESCRIPTION QTY.

1 097495-02AA Wiring cover 1 2 HF5-5C Screw, 5/16-24 x 5/16" 4 3 WLE-5 External lockwasher, 5/16" 4 4 M11084-26 Screw, #10-16 x 3/8" 3 5 099562-01 Motor (350,000 Btu/Hr) 1

099562-02 Motor (600,000 Btu/Hr) 1

6 M50116 Flange clamp

(holds pump to motor) 1

7 099520-01AA Motor support

(350,000 Btu/Hr) 1

101552-01 Motor support

(600,000 Btu/Hr) 1 8 57413 Street elbow 2 9 M17499-2 Pipe nipple 1 10 098102-01 Fuel ﬁlter assembly 1

098103-01 Filter element

(inside fuel ﬁlter

assembly, includes

rubber gaskets) 1 11 M50114-02 90˚ Male elbow 1 12 M50297 Compression elbow 1 13 M50113-02 Straight ﬁtting 1 14 098560-01 Fuel pump 1 15 ** Lockwasher, 5/16" 4 16 NPF-5C Hex nut, 5/16-24" 4 17 HA3003 Flame-out control 1 18 097491-01 Power relay 1 19 101547-01 Snap bushing 3 20 M10908-2 Screw, #6-32 x 3/8" 2 21 101504-01 Strain relief bushing 1 22 M10908-14 Screw, #8-32 x 3/8" 1 23 099125-05 Terminal board 1 24 099125-04 Terminal board 1 25 099157-01 Rivet 2

4

5

6

7

Figure 18 - Burner Head Assembly

1

4

2

3

5

6

12

20

19

(3)

18

17

24

23

25 (2)

22

21

7

15

16

Figure 19 - Motor And Pump Assembly

3

1

2

8

9

11

10

9

8

14

13

8

** Standard hardware item

18

106029

OWNER’S MANUAL

NOTES

_______________________________________________________________________________________________

106029

19

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.

PARTS AND SERVICE UNDER WARRANTY

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. If they cannot supply original replacement part(s), either contact your nearest Parts Central or call DESA International’s Technical Service Department at 1-800-323-5190.

When calling DESA International, have ready

• your name

• your address

• model and serial numbers of your heater

• how heater was malfunctioning

• proof of purchase

Usually, we will ask you to return the defective part to the factory.

PARTS AND REPAIR SERVICE

Return your heater to your nearest authorized service center. Repairs not covered by the warranty will be billed at standard prices. If they cannot supply original replacement part(s), either contact your nearest Parts Central or call DESA International’s Parts Department at 1-800-972-7879 for information.

When calling DESA International, have ready

• model number of your heater

• the replacement part number

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.

Each service center is independently owned and operated.

We reserve the right to amend these speciﬁcations at any time without notice.

KEEP THIS WARRANTY

Model No. _______________________________

Serial No. _______________________________

Date of Purchase _________________________

(To be ﬁlled in by purchaser)

INTERNATIONAL

Corporate Headquarters

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

www.desatech.com

For information, write: DESA International, P.O. Box 90004

Bowling Green, Kentucky 42102-9004 ATTN: Customer Service Department

When writing, always include Model number and Serial number.

106029 01

NOT A UPC

106029-01 Rev. A 06/99

Desa SB600D, SB350D User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual