Master Lock Electric Heater B350EAI User Manual

R
HIGH PRESSURE  
PORTABLE  
FORCED  
AIR HEATER  
OWNER’S MANUAL  
350 SIDE  
PFA/PV 008  
Model B350EAI  
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.  
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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, electrocution, and carbon  
monoxide poisoning.  
DANGER  
WARNING ICON  
G
001  
Carbon monoxide poisoning may lead to death!  
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 work-  
ing properly. Get fresh air at once! Have heater serviced. Some people (such  
as pregnant women, persons with heart or lung disease, persons with anemia,  
those under the influence of alcohol, and those at high altitudes) are more  
affected by carbon monoxide than others.  
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.  
• Never use heater where gasoline, paint thinner, or other highly flammable  
vapors are present.  
• Follow all local ordinances and codes when using heater.  
• Use only in well vented areas. Provide at least three square feet (2800 square  
cm) of fresh, outside air for each 100,000 BTU/Hr of rating.  
• 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 (earthed) extension cord.  
• Minimum heater clearances from combustibles:  
Outlet: 8 Ft. (250 cm)  
Top, Rear, and Sides: 4 Ft. (125 cm)  
• Locate heater on a stable and level surface while hot or running or a fire may  
occur.  
• When heater is moved or stored, it must be 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.  
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Hot Air Outlet  
Lower Shell  
PRODUCT  
IDENTIFICATION  
Upper Shell  
Motor and  
Pump  
Assembly  
Fuel Cap  
Thermostat  
Power Cord  
Safety Control  
Reset Button  
Fuel Tank  
Figure 1 - B350EAI BTU/Hr Model  
1. Remove all protective packing applied to heater for shipment.  
2. Remove heater from shipping container.  
UNPACKING  
ASSEMBLY  
3. Check heater for any shipping damage. If heater is damaged, promptly inform  
dealer where you bought heater.  
This model is furnished with wheels and front and rear handles. Wheels, handles,  
and mounting hardware are found in the shipping carton.  
TOOLS NEEDED  
Pliers  
Two - 7/16" Open or Adjustable Wrenches  
1. Slide axle through wheel support frame. Install wheel spacer and then one flat  
washer on each end of axle.  
2. Install wheels on axle.  
IMPORTANT: When installing wheels, point exetended hub of wheels toward  
wheel support frame (see Figure 2, page 5).  
3. Slide one flat washer on each axle end in front of wheel.  
4. Install cotter pins through holes at each end of axle. Bend cotter pins with pliers  
to secure.  
5. 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.  
6. Place front and rear handles on top of fuel tank flange. Insert screws through  
handles, fuel tank flange, and wheel support frame. Attach nut finger tight after  
inserting each screw.  
7. After inserting all screws, tighten nuts firmly.  
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ASSEMBLY  
Front Handle  
Continued  
Rear  
Handle  
Screw  
Hot Air  
Outlet  
Fuel Tank  
Flange  
Air Inlet  
Wheel  
Support  
Frame  
Extended  
Hub  
Nut  
Wheel  
Cotter  
Axle  
Pin  
Wheel Spacer  
Flat Washer  
Flat Washer  
Figure 2 - Wheel and Handle Assembly  
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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.  
THEORY OF  
OPERATION  
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 Safety 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.  
Solenoid  
Valve  
Motor  
Burner  
Head  
Fuel Pump/  
Fuel Filter  
Spark  
Plug  
Fan  
Combustion  
Chamber  
Clean  
Heated  
Air Out  
Cool  
Air In  
Fuel  
Pickup  
Line  
Fuel  
Filter  
Fuel Line To  
Solenoid Valve  
Electronic  
Ignitor  
Nozzle  
Fuel Tank  
Air for Combustion  
and Heating  
Fuel  
Figure 3 - Cross Section Operational View  
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FUELS  
WARNING  
WARNING ICON  
G
001  
Use only kerosene or No. 1 fuel oil to avoid risk of re or  
explosion. Never use gasoline, naphtha, paint thinners, alcohol,  
or other highly ammable 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 safety  
control to shut down heater. Foreign matter may also require fuel system to be  
cleaned frequently.  
VENTILATION  
WARNING  
WARNING ICON  
G
001  
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 Opening  
10.5  
Square  
Centimeter Opening  
9755  
Heater Size  
340,000 BTU/Hr  
Note: If you use more than one heater, provide extra fresh air. Provide a fresh air  
opening of at least three square feet (2800 square cm) for each 100,000 BTU/Hr  
rating.  
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OPERATION  
WARNING  
WARNING ICON  
G
001  
Review and understand the warnings in the Safety Information  
Section. 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 a standard 220/240 volt, 50 hertz, grounded  
(earthed) outlet. Use an extension cord if needed. Use only a three-wire,  
grounded (earthed) extension cord.  
Extension Cord Wire Size Requirements  
Up to 100 feet (30.5 meters) long, use 16 AWG (1.0 mm2) conductor  
101 to 200 feet (30.6 to 61 meters) long, use 14 AWG (1.5 mm2) conductor  
201 to 300 feet (61.1 to 91.5 meters) long, use 12 AWG (2 mm2) conductor  
6. The motor will start when power 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 safety control reset button. Safety control reset button is  
at rear of heater near power cord (see Figure 4).  
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.  
Safety Control  
Reset Button  
Figure 4 - Safety Control Reset Button  
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To Stop Heater  
OPERATION  
Continued  
CAUTION  
WARNING ICON  
G
001  
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 temperature 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 thermostat 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  
WARNING ICON  
G
001  
Do not restart heater until purge cycle is nished. The purge  
cycle cools the combustion chamber.  
1. Wait until purge cycle is finished after stopping heater.  
2. Repeat steps under To Start Heater, page 8.  
1. Drain all fuel from fuel filters, fuel lines, and pump (see Fuel Filters [Tank Fuel  
STORAGE  
Filter], page 17).  
2. Clean and flush fuel filter and canister attached to fuel pump (see Fuel Filters  
[Pump Fuel Filter], page 17).  
3. Remove drain plug and drain fuel tank.  
4. Replace drain plug.  
5. Add one gallon (four liters) of clean kerosene to fuel tank.  
6. Attach fuel cap.  
7. Move the heater forwards and backwards to stir fuel.  
8. Remove drain plug and drain fuel tank.  
9. Replace drain plug.  
10. Add two gallons (eight liters) of clean kerosene or No. 1 fuel oil to fuel tank.  
11. Replace fuel cap.  
12. Operate heater for 5 minutes (see Operation, page 8).  
13. Stop heater and let cool completely.  
14. Remove drain plug and drain fuel tank.  
15. Replace drain plug.  
16. Properly dispose of old and dirty fuel.  
17. Store heater in a dry location. 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.  
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PREVENTATIVE  
MAINTENANCE  
SCHEDULE  
WARNING  
WARNING ICON  
G
001  
Never service heater while it is plugged in, operating, or hot.  
Severe burns and electrical shock can occur.  
Item  
Fuel tank  
How Often  
Flush every 150-200 hours See Storage, page 9.  
How To  
of operation or as needed.  
Filler neck screen  
Check for trash when  
filling fuel tank. Clean  
when dirty.  
Lift out of fuel tank and rinse  
with clean kerosene.  
Fuel filter assembly  
(Fuel tank)  
Clean twice a heating  
season or replace as  
needed.  
See Fuel Filters, page 17.  
Fuel filter lines  
Fuel filter (Pump)  
Spark plug  
Check and tighten loose  
connections occasionally.  
See Fuel Lines, Page 16.  
Clean fuel filter element  
every 250 hours.  
See Fuel Filters, page 17.  
Clean and regap every 300 See Spark Plug, page 15.  
hours of operation or  
replace as needed.  
Fan blades  
Clean each season or as  
needed.  
See Fan Blades, page 14.  
Air passages around  
burner head  
Check each season for dirt Remove dirt and trash with  
and trash.  
clean, soft cloth.  
Motor  
Not required, permanently  
lubricated.  
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TROUBLE-  
SHOOTING  
WARNING  
WARNING ICON  
G
001  
Never service heater while it is plugged in, operating, or hot.  
Severe burns and electrical shock can occur. Only a qualied  
service person should service and repair heater.  
OBSERVED  
POSSIBLE CAUSE  
REMEDY  
PROBLEM  
Motor does not  
start when heater  
is plugged in and  
thermostat setting  
is higher than  
1. No power or low voltage  
at heater due to:  
1. A) Check condition of  
power cord or extension  
cord. Repair or replace if  
damaged.  
A) Damaged power cord  
or extension cord  
B) Wrong size extension  
cord  
C) Heater plugged into  
outlet with voltage lower  
than 220/240 volts  
B) Use extension cord with  
proper wire size (see To  
Start Heater, page 8).  
C) Make sure heater is  
plugged into 220/240 volt,  
50 hertz outlet.  
surrounding air  
temperature.  
2. Loose electrical connec-  
tions  
2. Check connections.  
Tighten if loose.  
3. Motor overload protector  
tripped due to:  
3. A) See Fan Blades, page  
14.  
A) Dirty fan  
B) Debris pulled into fan  
area by fan  
C) Binding pump  
D) Low voltage  
B) Remove debris from fan  
and fan guard area.  
C) Turn fan by hand. If fan  
is hard to turn, see Pump,  
page 16.  
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. Safety control not reset  
4. Press and release safety  
control reset button. See  
Figure 4, page 8 for button  
location.  
5. Damaged safety control  
6. Damaged power relay  
7. Damaged thermostat  
8. Binding pump  
5. Replace safety control.  
6. Replace power relay.  
7. Replace thermostat.  
8. Turn fan by hand. If fan is  
hard to turn, see Pump, page  
16.  
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OBSERVED  
PROBLEM  
TROUBLE-  
POSSIBLE CAUSE  
REMEDY  
SHOOTING  
Heater will not  
ignite, but motor  
runs for a short  
period of time.  
1. A) Fuel tank empty  
B) Water in fuel  
C) Wrong fuel  
1. A) Add fuel to tank.  
B) Check fuel tank for  
bubbles of water in bottom.  
If found, remove fuel (see  
Storage, page 9). Clean tank  
and fuel filters (see Fuel  
Filters, page 17). Fill with  
clean fuel.  
Continued  
C) Remove wrong fuel (see  
Storage, page 9). Clean tank  
and fuel filters (see Fuel  
Filters, page 17). Fill with  
correct fuel.  
2. Dirt in nozzle  
2. Replace nozzle (see Nozzle,  
page 15).  
3. Very low temperature  
may cause fuel to thicken  
and not flow  
3. Move heater to warmer place  
until fuel flows freely.  
4. Dirty fuel filters  
4. Clean fuel filters (see Fuel  
Filters, page 17).  
5. Wrong pump pressure  
5. Adjust pump pressure (see  
Pump Pressure Adjustment,  
page 16).  
6. Spark plug wire discon-  
nected from plug  
6. Connect spark plug wire to  
spark plug.  
7. Spark plug problems due 7. A) Adjust electrode gap to  
to:  
.055" (1.4 mm) (see Spark  
Plug, page 15).  
A) Wrong gap  
B) Plug wet with fuel  
C) Carbon deposits on  
plug  
B) Clean fuel from spark  
plug with clean, soft cloth.  
C) Replace plug if heavily  
coated with carbon (see  
Spark Plug, page 15).  
D) Inspect plug for worn or  
eroded electrodes. If found,  
replace plug (see Spark Plug,  
page 15).  
D) Damaged plug  
8. Solenoid valve not  
opening  
8. Check electrical connections  
and voltage to solenoid. If  
good, replace solenoid valve.  
WARNING  
WARNING ICON  
G
001  
High Voltage!  
9. Damaged electronic ignitor  
9. Replace electronic ignitor.  
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OBSERVED  
PROBLEM  
TROUBLE-  
POSSIBLE CAUSE  
REMEDY  
SHOOTING  
1. Wrong pump pressure  
1. Adjust pump pressure (see  
Pump Pressure Adjustment,  
page 16).  
Heater ignites, but  
safety control  
shuts off heater  
after a short period  
of time.  
Continued  
2. Dirty fuel filters  
3. Dirt in nozzle  
2. Clean fuel filters (see Fuel  
Filters, page 17).  
3. Replace nozzle (see Nozzle,  
page 15).  
4. Dirty photocell lens  
4. Clean photocell lens with  
clean, soft cloth.  
5. Open or damaged  
photocell  
5. Replace photocell.  
6. Bad safety control  
6. Replace safety control.  
7. Replace fan switch.  
7. Damaged fan switch  
Heater burns, but  
puffs of smoke can  
be seen.  
1. Wrong pump pressure  
1. Adjust pump pressure ( see  
Pump Pressure Adjustment,  
page 16).  
Heater does not  
burn steady.  
Heater burns with  
odor.  
Heater smokes  
continuously.  
2. A) Heater almost out of 2. A) Add fuel to tank.  
fuel  
B) Check fuel tank for  
bubbles of water in bottom. If  
found, remove fuel (see  
Storage, page 9). Clean tank  
and fuel filters (see Fuel  
Filters, page 17). Fill with  
clean fuel.  
B) Water condensation  
in fuel tank  
C) Wrong fuel  
C) Remove wrong fuel (see  
Storage, page 9). Clean tank  
and fuel filters (see Fuel  
Filters, page 17). Fill with  
correct fuel.  
3. Dirty fuel filters  
3. Clean fuel filters (see Fuel  
Filters, page 17).  
4. Air leak in suction  
system  
4. Tighten all fuel line connec-  
tions (see Fuel Lines, page  
16).  
5. Dirty nozzle  
5. Replace nozzle (see Nozzle,  
page 15).  
6. Low voltage causing  
motor to operate below  
rated speed  
6. Check voltage at heater.  
Voltage at heater should  
never be less than 198 volts.  
7. Loose fuel line  
7. Check and tighten all fuel line  
connections (see Fuel Lines,  
page 16).  
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SERVICE  
WARNING  
WARNING ICON  
G
001  
Never service heater while it is plugged in, operating, or hot.  
Severe burns and electrical shock can occur. Only a qualied  
service person should service and repair heater.  
PROCEDURES  
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).  
Upper Shell  
2. Lift upper shell off.  
Figure 5 - Upper Shell Removal  
Fan Blades  
1. Remove upper shell (see  
above).  
2. Clean fan blades with clean,  
soft cloth moistened with  
kerosene or solvent (see  
Figure 6).  
3. Dry fan blades thoroughly.  
4. Replace upper shell.  
Fan Blade  
Figure 6 - Fan Blades  
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Burner  
Head  
Spark Plug  
1. Remove upper shell (see page  
Spark Plug  
14).  
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 .055 inch  
(1.4 mm) (see Figure 8).  
6. Install spark plug in burner  
head.  
Spark  
Plug Wire  
Figure 7 - Spark Plug Removal  
7. Attach spark plug wire to spark  
plug.  
8. Replace upper shell.  
.055 inch (1.4 mm)  
Nozzle  
1. Remove upper shell (see page  
Figure 8 - Spark Plug Gap  
14).  
2. Remove fuel line from  
solenoid valve using 7/16"  
wrench.  
3. Remove spark plug wire from  
spark plug.  
Nozzle  
Spark Plug  
4. Remove spark plug from  
burner head using 13/16"  
open-end wrench.  
Plug  
5. Remove five (5) screws using  
5/16" nut-driver and remove  
burner head from combustion  
chamber.  
6. Place burner head into vise  
and lightly tighten.  
Spark  
Plug  
Wire  
Solenoid  
Valve  
Burner  
Head  
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.  
Fuel Line  
9. Make sure plug is in place on  
burner head.  
Figure 9 - Replacing Nozzle  
10.Replace nozzle into burner  
head and tighten to 80-110  
inch-pounds (9.1 to 12.4 n-m).  
11.Attach burner head to combus-  
tion 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.  
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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 8). Allow motor to  
reach full speed.  
4. Adjust pressure to 100 psi.  
Use small flat blade screw-  
driver to turn slotted screw at  
fuel pump port marked  
“PRESS ADJ.” Turn screw  
clockwise to increase  
Fuel Pump Port  
Marked “PRESS ADJ”  
Pressure  
Gage  
p s i  
pressure. Turn screw  
counterclockwise to decrease  
pressure.  
Fuel Pump Port  
Marked “GAGE”  
5. Remove pressure gage.  
Replace pressure gage plug  
in fuel pump port marked  
“GAGE.”  
Figure 10 - Adjusting Pump Pressure  
Hex Screw On  
Flange Clamp  
Pump  
(Procedureifpumpisbinding)  
1. Remove upper shell (see page  
14).  
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.  
Figure 11 - Location of Screw  
on Flange Clamp  
Figure 12 - Turning Fan with Hand  
6. Replace upper shell.  
Pump  
Fuel Filter  
Burner Head  
Assembly  
Fuel Lines  
(Procedure for tightening  
fuel lines)  
1. Remove upper shell (see page  
14).  
Pump  
2. Use 7/16" wrench and tighten  
fuel lines at solenoid valve (see  
Figure 13), pump, and pump  
fuel filter assembly (see Figure  
14).  
Fuel  
Line  
Solenoid  
Valve  
Fuel  
Lines  
Figure 13 - Fuel Line at  
Solenoid Valve  
Figure 14 - Fuel Lines at Pump and  
Pump Fuel Filter Assembly  
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Fuel Filters  
Pump Fuel  
Filter  
Assembly  
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.  
Fuel Lines  
Fuel Filter  
Pump  
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.  
Figure 15 - Removing Tank Fuel Filter  
B.Pump Fuel Filter  
1. Unscrew canister bottom  
from canister top with  
Channellock pliers.  
2. Remove fuel filter and gasket  
from canister bottom (see  
Figure 16).  
3. Inspect canister bottom and  
fuel filter for water 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.  
Canister Top  
Gasket  
7. Put clean fuel filter and  
gasket back in canister  
bottom.  
Fuel Filter  
8. Screw canister bottom into  
canister top.  
Canister Bottom  
Figure 16 - Fuel Pump Filter and Canister  
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Output Rating (BTU/Hr)  
Fuel  
Fuel Tank Capacity (U.S. Gal./Liters)  
340,000  
SPECIFICATIONS  
Use Only Kerosene or No. 1 Fuel Oil  
30/113.6  
Fuel Consumption (Gal. Per Hr/Liter Per Hr) 2.5/9.5  
Electric Requirements  
Amperage (Normal Run)  
Motor RPM  
220/240V, 50 Hz  
5
2850  
Fuel Pump Pressure (PSI)  
Spark Plug Gap  
100  
.055" (1.4 mm)  
Weight (approx. lbs./kilograms) Dry (net) 180/82  
With Full Fuel Tank  
390/177  
Green/Yellow  
Thermostat  
Start Capacitor  
WIRING  
DIAGRAM  
Black  
Black  
White  
B
Safety  
Control  
Reset  
7
5
Button  
R
Blue  
B
A
Black Black  
Red  
Orange  
Relay  
Motor  
White  
Yellow  
White  
Red  
Purple  
Black  
Red  
Terminal  
Board  
Terminal  
Board  
White  
White  
Purple  
White  
Yellow  
Yellow  
Black  
1
2
Spark  
Plug  
Fan  
Switch  
Solenoid  
Valve  
3
Ignitor  
White  
Plug  
Brown  
Green/Yellow  
Blue  
Blue  
Photocell  
Orange  
220/240V  
50HZ  
Purchase this heater accessory from you local dealer.  
ACCESSORY  
HIGH PRESSURE AIR GAGE - M4574  
Special tool to check pump pressure  
18  
099565  
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PARTS LIST  
Burner Head Assembly  
REF  
NO.  
1
2
3
4
5
6
7
3
PART NO.  
M10908-2  
099229-01  
HA3012  
M51070-02  
M51170-01  
M50924-02  
69246  
DESCRIPTION  
Screw, #6-32 x 3/8"  
Photocell bracket  
Spark plug  
Nozzle  
Plug  
Burner head body  
Straight nipple  
Solenoid valve  
Compression elbow  
QTY.  
2
1
1
1
1
1
1
1
1
1
4
5
2
6
8
9
M50077-02  
M50297  
7
8
9
Motor and Pump Assembly  
1
REF.  
NO.  
1
2
3
4
PART NO.  
097495-02AA Wiring cover  
HF5-5C  
WLE-5  
M11084-26  
M50064-07  
M50116  
DESCRIPTION  
QTY.  
1
4
4
3
1
4
Screw, 5/16-24 x 5/16"  
External lockwasher, 5/16"  
Screw, #10-16 x 3/8"  
Motor  
2
3
5
6
Flange clamp  
(holds pump to motor)  
099520-01AA Motor support  
1
1
2
1
1
11  
5
10  
7
8
9
57413  
Street elbow  
Pipe nipple  
Fuel lter assembly  
Filter element  
9
M17499-2  
098102-01  
098103-01  
6
10  
8
14  
(inside fuel lter  
assembly, includes  
rubber gaskets)  
90˚ Male elbow  
Compression elbow  
Straight tting  
1
1
1
1
1
4
4
1
1
3
2
1
1
1
1
2
1
1
1
2
2
2
12  
27  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
M50114-02  
M50297  
M50113-02  
M50065-02  
WLM-5  
13  
8
26  
Fuel pump  
Lockwasher, 5/16"  
Hex nut, 5/16-24"  
Safety control  
NPF-5C  
29  
097630-02  
098894-01  
M50104-02  
M10908-2  
M11143-1  
097211-01  
099125-05  
099125-04  
099157-01  
M12650-12  
M51226-01  
M51231-01  
FPF3-4C  
28  
Power relay  
Shorty bushing  
Screw, #6-32 x 3/8"  
Strain relief bushing  
Screw, #8-32 x 1/4"  
Terminal board  
Terminal board  
Rivet  
Capacitor  
Capacitor cap  
Capacitor bracket  
Screw, #10-32 x 1/2"  
Lockwasher, #10  
Nut, #10-32  
20  
19  
(3)  
22  
21  
18  
7
17  
30  
31  
15  
16  
24  
23  
WLE-3  
NPF-3C  
25  
19  
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2
ILLUSTRATED  
PARTS  
1
2
BREAKDOWN  
3
9
2
6
7
8
19  
10  
20  
14  
4
21  
13  
12  
16  
22  
13  
11  
15  
25  
31  
23  
17  
26  
27  
18  
30  
28  
24  
29  
20  
41  
32  
34  
2
39  
33  
38  
34  
35  
5
2
40  
36  
37  
37  
20  
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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.  
PARTS LIST  
REF.  
NO.  
1
2
3
PART NO.  
099329-02  
M11084-27  
M50542-01  
M30865-02  
1000576  
DESCRIPTION  
Upper shell  
Screw, #10-16 x 1/2"  
Combustion chamber & shield  
Bushing  
QTY.  
1
25  
1
4
5
3
1
Grommett  
6
7
8
9
Burner head assembly  
Photocell assembly  
Fan  
Fan guard  
Fan switch  
1
1
1
1
1
1
1
M16656-18  
M50121-02  
M50097-01AA  
M51336-02  
M51160-01  
M50278  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
Fan switch cover  
Sleeve  
M11084-26  
079673-03  
M50295  
Screw, #10-16 x 3/8"  
Motor & pump assembly  
Power cord  
Fuel line  
Ignition boot  
Electronic ignitor  
Lower shell  
Clip nut  
Screw, #12-14 x 1/2"  
Bushing  
Wire harness  
Fuel line assembly  
Front handle  
13  
1
1
1
1
1
1
16  
4
2
1
1
1
1
1
6
2
1
1
1
1
8
2
2
4
2
M50050  
098641-07  
M50061AB  
M11271-8  
M11084-3  
M50104-02  
099509-03  
M50115-01  
M50062-03  
097702-01  
HA2210  
HC4-18C  
M51043-01  
M50062  
098513-05  
M50063  
M18774  
NTC-4C  
M50389  
C5-10C  
WP-10C  
M50296  
M27417  
099566-01  
M11084-29  
Fuel cap  
Filler neck screen  
Screw, 1/4-20 x 2 1/4"  
Screw, 1/4-20 x 1 1/2"  
Rear handle  
Fuel tank  
Wheel support frame  
Axle  
Hex lock nut, 1/4-20  
Wheel  
Cotter pin, 5/32 x 1 1/4"  
Flatwasher, 5/8"  
Wheel spacer  
Drain plug  
1
1
2
Thermostat  
Screw, #10-16 x 3/4"  
Not available as complete assembly. See page 19.  
21  
099565  
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_______________________________________________________________  
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NOTES  
22  
099565  
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_______________________________________________________________  
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NOTES  
23  
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WARRANTY AND REPAIR SERVICE  
CERTIFICATE OF GENERAL  
EQUIPMENT - LIMITED 90 DAY WARRANTY  
DESA International warrants new Products sold by it to be  
POSE. IN ANY EVENT IMPLIED WARRANTIES INCLUDING  
THOSEOFMERCHANTABILITYANDFITNESSFORAPAR-  
TICULAR PURPOSE ARE LIMITED TO THE DURATION OF  
THIS EXPRESS WARRANTY.  
free from defects in material or workmanship for a period of  
ninety days after date of delivery to the first user and subject to  
the following conditions:  
DESA International's obligation and liability under this  
Warranty is expressly limited to repairing or replacing at DESA  
International's option, any parts which appear to DESA Interna-  
tional upon inspection to have been defective in material or  
workmanship when shipped from the factory. Such parts shall  
beprovidedatnocosttotheuser, atthebusinessestablishment  
of any factory authorized service center or the factory during  
regular working hours. The Warranty shall not apply to compo-  
nent parts or accessories of Products not manufactured by  
DESA International and which carry the warranty of the manu-  
facturer thereof, or to normal maintenance (such as pressure  
adjustments) or to normal maintenance parts (such as filters  
and spark plugs). Replacement or repair parts installed in the  
Product covered by this Warranty are warranted only for the  
remainder of this Warranty as if such parts were original compo-  
nents of said Product. DESA INTERNATIONAL MAKES NO  
OTHER EXPRESS WARRANTY. TO THE EXTENT PERMIT-  
TED BY LAW DESA INTERNATIONAL MAKES NO IMPLIED  
WARRANTY AND MAKES NO WARRANTY OF MER-  
CHANTABILITY OR FITNESS FOR ANY PARTICULAR PUR-  
Any transportation charges, costs of installation, duty,  
taxes or any other charges whatsoever must be borne by the  
user. DESA International's obligation under this limited War-  
rantyshallnotincludeanyliabilityfordirect,indirect,incidential,  
or consequential damage or delay. If requested by DESA  
International, Products or parts for which a warranty claim is  
made are to be returned transportation prepaid by user to the  
factory. Any improper use, including operation after discovery  
of defective or worn parts, operation beyond capacity, substi-  
tution of parts not approved by DESA International, or any  
alteration or repair by others in such manner as in DESA  
International's judgement affects the Product materially and  
adversely, shall void this Warranty.  
NO EMPLOYEE OR REPRESENTATIVE IS AUTHORIZED  
TO CHANGE THIS WARRANTY IN ANY WAY OR GRANT  
ANY OTHER WARRANTY UNLESS SUCH CHANGE IS  
MADEINWRITINGANDSIGNEDBYANOFFICEROFDESA  
INTERNATIONAL AT ITS HOME OFFICE.  
WARRANTY SERVICE  
Always specify model and serial numbers when communicating  
with the factory.  
We reserve the right to amend these specifications at any time  
without notice. The only Warranty applicable is our standard  
written Warranty. We make no other Warranty, expressed or  
implied.  
A Service Manual is available by writing to the Technical Service  
Department at:  
DESA  
INTERNATIONAL  
Corporate Headquarters  
2701 Industrial Drive  
P.O. Box 90004  
Bowling Green, Kentucky 42102-9004  
U.S.A.  
099565-01  
Rev. C  
Printed in U.S.A.  
07/94  
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