Desa BY100CE, BY150CE, BY70CE, BY30CE User Manual
PORTABLE
FORCED
AIR HEATERS
OWNER’S MANUAL
R
Heater Sizes: 30,000 70,000 90,000 150,000 Btu/Hr
Models: BY30CE, BY70CE, BY100CE, and BY150CE
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.
CONTENTS
SECTION PAGE
Safety Information................................................................................ 2
Product Identification ........................................................................... 4
Unpacking.............................................................................................5
Assembly ..............................................................................................5
Theory of Operation .............................................................................6
Fuels ..................................................................................................... 6
Ventilation ............................................................................................ 7
Operation .............................................................................................. 7
Storing, Transporting, or Shipping ....................................................... 8
Preventative Maintenance Schedule..................................................... 8
Troubleshooting.................................................................................... 9
Service Procedures ............................................................................... 10
Upper Shell Removal .................................................................... 10
Fuel Filter (30/70,000 Btu/Hr Models) ......................................... 11
Fuel Filter (90/150,000 Btu/Hr Models) ....................................... 11
Spark Plug (30,000 Btu/Hr Model) ............................................... 12
Spark Plug (70/90/150,000 Btu/Hr Models) ................................. 13
Air Output, Air Intake, and Lint Filters......................................... 14
Pump Pressure Adjustment............................................................14
Nozzle (30,000 Btu/Hr Model)......................................................15
Nozzle (70/90/150,000 Btu/Hr Models)........................................ 16
Pump Rotor.................................................................................... 17
Fan ................................................................................................. 18
Specifications........................................................................................ 18
Wiring Diagrams .................................................................................. 19
Illustrated Parts Breakdown and Parts List .......................................... 20
30,000 Btu/Hr Model.....................................................................20
70,000 Btu/Hr Model.....................................................................22
90,000 Btu/Hr Model.....................................................................24
150,000 Btu/Hr Model...................................................................26
Wheels and Handles (90/150,000 Btu/Hr Models) .............................. 28
Accessories ........................................................................................... 29
EC Conformity Declaration.................................................................. 30
Warranty and Repair Service................................................................32
SAFETY
INFORMATION
2
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.
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.
Continued
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SAFETY
INFORMATION
Continued
WARNINGS
• 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 regulations regarding the safe fu-
eling 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 struc-
ture.
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 penetra-
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 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 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.
• Use only in well-vented areas. Before using heater, provide at least a
(three-square-foot) opening 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 the electrical voltage and frequency specified on model plate.
• Use only a three-prong, grounded extension cord.
• Minimum heater clearances from combustibles:
Outlet: 250 cm (8 Ft.) Sides, Top, and Rear: 125 cm (4 Ft.)
• Locate heater on a stable and level surface if heater is 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.
• When used with thermostat, heater may start 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.
(Continued)
2800 square cm
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3
PRODUCT
IDENTIFICATION
Hot Air Outlet
Upper Shell
Handle
Lower Shell
Fuel Tank
Side Cover
Hot Air
Outlet
Lower
Shell
Flame-Out
Control Reset
Button
Figure 1 - 30/70,000 Btu/Hr Models
Fan Guard
Air Filter
End Cover
Fuel Cap
Power
Cord
Upper Shell
Fuel Cap
Side Cover
Flame-Out
Control Reset
Button
Figure 2 - 90/150,000 Btu/Hr Models
Fan Guard
Fuel Tank
Power Cord
4
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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.
ASSEMBLY
(For 90,000 and 150,000
Btu/Hr Models Only)
These models are furnished with wheels and handles. Wheels, handles, 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.
I
MPORTANT:
wheel support frame (see Figure 3).
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 on top of fuel tank flange. Insert screws
through handles, 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.
When installing wheels, point extended hub of wheels toward
Front Handle
Hot Air
Outlet
Fuel Tank
Flange
Wheel
Support
Frame
Wheel
Cap Nut
Figure 3 - Wheel and Handle Assembly, 90/150,000 Btu/Hr Models Only
Screw
Nut
Axle
Rear
Handle
Air
Inlet
Extended
Hub
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5
THEORY OF
OPERATION
The Fuel System: The air pump forces air through the air line. The air is then
pushed through the burner head nozzle. This air causes fuel to lift from the tank. A
fine mist of fuel is sprayed into the combustion chamber.
The Air System: The motor turns the fan. The fan pushes air into and around
the combustion chamber. This air is heated and provides a stream of clean, hot air.
The Ignition System: The electronic ignitor sends voltage to the spark plug.
The spark plug ignites the fuel and air mixture.
The Flame-Out Control System: This system causes the heater to shut down
if the flame goes out.
Clean
Heated
Air Out
Fuel
Tank
Combustion
Chamber
Nozzle
Air For Fuel
System
Figure 4 - Cross Section Operational View
Spark
Plug
Fuel
Filter
Motor
Burner
Head
Air line
To Burner
Air For Combustion
And Heating
Fan
Air Pump
Intake
Air
Filter
Cool
Air
In
Output
Air
Filter
Electronic
Ignitor
Fuel
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
• use of non-toxic anti-icer in fuel during very cold weather
IMPORTANT:
clean. Foreign matter such as rust, dirt, or water will cause the flame-out control to
shut down heater. Foreign matter may also require you to clean fuel system often.
6
Use a KEROSENE ONLY container. Be sure storage container is
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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.
Provide a fresh air opening of at least 2800 square cm (three square feet) for each
100,000 BTU/Hr rating. Provide extra fresh air if more heaters are being used.
OPERATION
Example:
A 150,000 Btu/Hr heater requires one of the following:
• a two-car garage door raised 15.24 cm (six inches)
• a single-car garage door raised 22.86 cm (nine inches)
• two, 76.20 cm (thirty-inch) windows raised 30.48 cm (twelve inches)
WARNING
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.
To Start Heater
1. Follow all ventilation and safety information.
2. Fill fuel tank with kerosene or No. 1 fuel oil.
3. Attach fuel cap.
4. Plug power cord of heater into standard 230 volt/50 hertz, grounded (earthed)
outlet. Use an extension cord if needed. Use only a three-prong, grounded
(earthed) extension cord.
Extension Cord Wire Size Requirements
Up to 30.5 meters (100 feet) long, use 1.0 mm2 (16 AWG) conductor
30.6 to 61 meters (101 to 200 feet) long, use 1.5 mm2 (14 AWG) conductor
Heater will start when power cord is plugged into outlet. If not, push in flame-
out control reset button (see Figures 5 and 6).
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Flame-Out Control
Reset Button
Figure 5 - Flame-Out Control Reset
Button, 30/70,000 Btu/Hr
Flame-Out Control
Reset Button
Figure 6 - Flame-Out Control Reset
Button, 90/150,000 Btu/Hr
Continued
7
OPERATION
Continued
STORING,
TRANSPORTING
,
OR SHIPPING
To Stop Heater
1. Unplug power cord from outlet.
To Restart Heater
1. Wait 2 minutes after stopping heater.
2. Repeat steps under To Start Heater, page 7.
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.
PREVENTATIVE
MAINTENANCE
SCHEDULE
IMPORTANT:
heating season. Using old fuel could damage heater.
Do not store kerosene over summer months for use during next
WARNING
Never service heater while it is plugged in, operating, or
hot. Severe burns and electrical shock can occur.
Item How Often How To
Fuel tank Flush every 150-200 hours See Storing, Transporting, or
of operation or as needed. Shipping, above.
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 and Lint Filters, page 14.
operation or as needed.
Fuel filter Clean twice a heating season See Fuel Filter, page 11.
or as needed.
Spark plug Clean and regap every 600 See Spark Plug, pages 12 and 13.
hours operation or replace
as needed.
Fan blades Clean every season or as needed. See Fan, page 18.
Motor Not required/permanently
lubricated
8
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TROUBLE-
SHOOTING
WARNING
Never service heater while it is plugged in, operating, or hot.
Severe burns and electrical shock can occur.
OBSERVED FAULT POSSIBLE CAUSE REMEDY
Heater ignites, but
flame-out control
shuts off heater after
a short period of
time.
Heater will not
ignite, but motor runs
for a short period of
time.
Wrong pump pressure
Dirty air output, air intake,
and lint filters
Dirty fuel filter
Dirt in nozzle
Dirty photocell lens
Bad flame-out control
Wrong pump pressure
Carbon deposits on spark
plug and/or improper gap
Dirty fuel filter
Dirt in nozzle
Water in fuel tank
See Pump Pressure
Adjustment, page 14.
See Air Output, Air Intake
and Lint Filters, page 14.
See Fuel Filter, page 11.
See Nozzle, pages 15 and
16.
Clean photocell lens.
Replace flame-out control.
See Pump Pressure
Adjustment, page 14.
See Spark Plug, pages 12
and 13.
See Fuel Filter, page 11.
See Nozzle, pages 15 and
16.
Drain and flush fuel tank
with clean kerosene.
See Storing, Transport-
ing, or Shipping, page 8.
102422
Motor does not start
when heater is
plugged in, fan
rotates slowly or
does not turn.
WARNING: High voltage!
Electronic ignitor not
grounded (earthed)
Bad electronic ignitor
Flame-out control not reset
Binding pump rotor
Make sure electronic
Replace electronic
Reset flame-out control
If fan is hard to turn, see
ignitor mounting is tight.
ignitor.
button, see Figures 5 and
6, page 7.
Pump Rotor, page 17.
9
SERVICE
PROCEDURES
Upper Shell Removal
1. Remove screws and lock
washers along each side of
heater using 5/16" nutdriver. These screws attach
upper and lower shells
together.
2. Lift upper shell off.
3. Remove fan guard.
WARNING
Never service heater while it is plugged in, operating, or
hot. Severe burns and electrical shock can occur.
Upper
Shell
Fan Guard
Figure 7 - Upper Shell Removal, 30/70,000 Btu/Hr Models
Upper
Shell
Fan
Guard
Figure 8 - Upper Shell Removal, 90/150,000 Btu/Hr Models
10
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