Desa BY150ECA User manual

PORTABLE
FORCED
AIR HEATERS
OWNER’SMANUAL
Model BY150ECA 150,000 Btu/Hr 120v/60 Hz
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.
95
Model BY100ECA 100,000 Btu/Hr 120v/60 Hz

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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
Fan........................................................................................... 10
Air Output, Air Intake, and Lint Filters..................................10
Pump Pressure Adjustment..................................................... 11
Fuel Filter................................................................................ 11
Spark Plug...............................................................................12
Nozzle ..................................................................................... 12
Pump Rotor ............................................................................. 13
Specifications................................................................................. 14
Wiring Diagrams ........................................................................... 14
Replacement Part and Accessory ..................................................14
Illustrated Parts Breakdown .......................................................... 16
Wheels and Handle .................................................................15
Model BY100ECA, 100,000 Btu/Hr ......................................16
Model BY150ECA, 150,000 Btu/Hr ......................................18
EC Conformity Declaration .......................................................... 20
Warranty and Repair Service ........................................................Back Cover
CONTENTS SECTION PAGE
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.
WARNINGS
SAFETY
INFORMATION
DANGER
Carbon monoxide poisoning may lead to death!

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SAFETY
INFORMATION
Continued
WARNINGS (Continued)
• 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 regula-
tions 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 struc-
ture.
f) All fuel storage shall be located a minimum of 762 cm (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 federal, state, or local authority hav-
ing 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 mini-
mum safe distance is 305 cm (10 feet). It is further recommended that these en-
closure 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 2800 square cm
(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.

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PRODUCT
IDENTIFICATION
Side Cover
Fuel Tank
Lower
Shell
Fuel Cap
Fan Guard
Power Cord
Flame-Out
Control Reset
Button
Upper Shell
Hot Air
Outlet
Figure 1 - 100,000 Btu/Hr Model
Lower
Shell
Hot Air
Outlet
Fan Guard
Fuel Tank
Flame-Out
Control Reset
Button
Side Cover
Fuel Cap
Figure 2 - 150,000 Btu/Hr Model
Upper Shell
Power Cord

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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 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.
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
UNPACKING
Front Handle
Rear Handle
Wheel
Support
Frame
Wheel
Extended
Hub
Hot Air
Outlet
Fuel
Tank
Flange
Screw
Nut
Cap Nut Axle
Air Inlet
Figure 3 - Wheel and Handle Assembly

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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.
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-
out control to shut down heater. Foreign matter may also require you to clean fuel
system often.
THEORY CUTAWAY PFA/OV 003
Fuel
Filter
Air For Fuel
System Air For Combustion And Heating Fuel
Combustion
Chamber Air
Intake
Filter
Clean
Heated
Air Out
Cool
Air
In
Air
Output
Filter
Fuel
Tank
Figure 4 - Cross Section Operational View
Burner
Head
Spark
Plug
Motor
Fan
Electronic
Ignitor
Air Line
To Burner
Nozzle
Air Pump

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WARNING
!
VENTILATION
Continued
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.
OPERATION WARNING
!
Review and understand the warnings in the Safety Informa-
tion Section, pages 2 and 3. 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 120 volt/60 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 Figure 5).
Figure 5 - Flame-Out Control Reset Button
Flame-Out Control
Reset Button
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.
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)

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OPERATION
Continued
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 10.
Air intake Wash and dry with soap and See Air Output, Air Intake,
filter water every 500 hours of op- and Lint Filters, page 10.
eration or replace as needed.
Fuel filter Clean twice a heating season See Fuel Filter, page 11.
or replace as needed.
Spark plug Clean and regap every 600 See Spark Plug, page 12.
hours operation or replace
as needed.
Fan blades Clean each season or as needed. See Fan, page 10.
Motor Not required/permanently lubricated
WARNING
!
PREVENTATIVE
MAINTENANCE
SCHEDULE Never service heater while it is plugged in, operating, or
hot. Severe burns and electrical shock can occur.
STORING,
TRANSPORTING ,
OR SHIPPING
Note: If shipping, transport companies require fuel tanks to be empty.
1. Drain fuel tank.
Note: Some models have drain plug on underside of fuel tank. If so, remove
drain plug to drain all fuel. If heater does not have drain plug, drain fuel
through fuel cap opening. Be sure all fuel is removed.
2. Replace drain plug if provided.
3. If any debris is noted in old fuel, add 1 or 2 quarts of clean kerosene to tank,
stir, and drain again. This will prevent excess debris from clogging filters
during future use.
4. Replace fuel cap or drain plug. Properly dispose of old and dirty fuel. Check
with local automotive service stations that recycle oil.
5. If storing, store heater in dry place. Make sure storage place is free of dust and
corrosive fumes.
IMPORTANT: Do not store kerosene over summer months for use during next
heating season. Using old fuel could damage heater.
To Stop Heater
1. Unplug extension cord from outlet.
To Restart Heater
1. Wait two minutes after stopping heater.
2. Repeat steps under To Start Heater, page 7.

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Wrong pump pressure
Dirty air output, air intake
and lint filters
Dirty fuel filter
Dirt in nozzle
Dirty photocell lens
Bad flame-out control
Heater ignites, but
flame-out control
shuts off heater after
a short period of
time.
WARNING
!
TROUBLE-
SHOOTING Never service heater while it is plugged in, operating, or
hot. Severe burns and electrical shock can occur.
See Pump Pressure
Adjustment, page 11.
See Air Output, Air Intake
and Lint Filters, page 10.
See Fuel Filter, page 11.
See Nozzle, page 12.
Clean photocell lens.
Replace flame-out control.
OBSERVED FAULT POSSIBLE CAUSE REMEDY
Heater will not
ignite, but motor runs
for a short period of
time.
Wrong pump pressure
Carbon deposits on spark
plug and/or improper gap
Dirty fuel filter
Dirt in nozzle
Water in fuel tank
Electronic ignitor not
grounded
Bad electronic ignitor
See Pump Pressure
Adjustment, page 11.
See Spark Plug, page 12.
See Fuel Filter, page 11.
See Nozzle, page 12.
Drain and flush fuel
tank with clean kerosene.
See Storing, Transporting,
or Shipping, page 8.
Make sure electronic ig-
nitor mounting is tight.
Replace electronic ignitor.
Motor does not start
when heater is plugged
in, fan rotates slowly
or does not turn.
Flame-out control not reset
Solid state relay not
allowed to reset
Binding pump rotor
Press flame-out control
reset button.
Wait two minutes
before trying to restart
heater.
If fan is hard to turn, see
Pump Rotor, page 13.
WARNING: High voltage!
!

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SERVICE
PROCEDURES WARNING
!
Upper Shell Removal
1. Remove screws along each side of
heater using 5/16" nut-driver. These
screws attach upper and lower shells
together.
2. Lift upper shell off.
3. Remove fan guard.
Fan
IMPORTANT: Remove fan from motor
shaft before removing motor from
heater. The weight of the motor resting
on the fan could damage the fan pitch.
1. Remove upper shell (see above).
2. Use 1/8" allen wrench to loosen set-
screw which holds fan to motor
shaft.
3. Slip fan off motor shaft.
4. Clean fan using soft cloth moistened
with kerosene or solvent.
5. Dry fan thoroughly.
6. Replace fan on motor shaft. Place
fan hub flush with end of motor shaft
(see Figure 7).
7. Place setscrew on flat of shaft.
Tighten setscrew firmly (4.5-5.6
n-m/40-50 inch-pounds).
8. Replace fan guard and upper shell.
Fan
Setscrew
Motor
Shaft
Motor
Flush
Air Output, Air Intake, and
Lint Filters
1. Remove upper shell (see above).
2. Remove filter end cover screws
using 5/16" nut-driver.
3. Remove filter end cover.
4. Replace air output and lint filters.
5. Wash or replace air intake filter (see
Preventative Maintenance Schedule,
page 8).
6. Replace filter end cover.
7. Replace fan guard and upper shell.
IMPORTANT: Do not oil filters.
Figure 7 - Fan Cross Section
Figure 6 - Upper Shell Removal
Never service heater while it is plugged in, operating, or
hot. Severe burns and electrical shock can occur.
Upper
Shell
Figure 8 - Air Output, Air Intake, and Lint Filters
Fan Guard
Air Intake Filter
Air Output Filter
Filter End Cover
Lint Filter
Fan
Guard

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Pump Pressure
Adjustment
1. Remove pressure gauge plug from
filter end cover.
2. Install accessory pressure gauge
(part number HA1180).
3. Start heater (see Operation, page
7). Allow motor to reach full speed.
4. Adjust pressure. Turn relief valve
to right to increase pressure. Turn
relief valve to left to decrease
pressure. See specifications at right
for correct pressure for each model.
5. Remove pressure gauge. Replace
pressure gauge plug in filter end
cover.
Relief
Valve
Pressure
Gauge
Plug
Figure 9 - Pressure Gauge Plug Removal
Pump
Model Pressure
100,000 Btu/Hr 4.5 PSI
150,000 Btu/Hr 5.0 PSI
Fuel Filter
1. Remove side cover screws using
5/16" nut-driver.
2. Remove side cover.
3. Pull upper fuel line off fuel filter
neck.
4. Carefully pry bushing, fuel filter,
and lower fuel line out of fuel tank.
5. Wash fuel filter with clean fuel and
replace in tank.
6. Attach upper fuel line to fuel filter
neck.
7. Replace side cover.
Figure 10 - Adjusting Pump Pressure
Pressure
Gauge
Side Cover
Fuel Filter, Bushing,
and Lower Fuel Line
Upper Fuel Line
Figure 11 - Fuel Filter Removal

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Nozzle
1. Remove upper shell (see page 10).
2. Remove fan (see page 10).
3. Remove fuel and air line hoses from
burner head.
4. Remove spark plug wire from spark
plug.
5. Remove spark plug from burner
head using 13/16" open-end wrench.
6. Remove three screws using
5/16" nut-driver and remove burner
head from combustion chamber.
7. Place burner head into vise and
lightly tighten.
8. Carefully remove nozzle from
burner head using 5/8" socket
wrench (see Figure 14).
9. Blow compressed air through face
of nozzle. This will free any dirt in
nozzle area.
10.Inspect nozzle seal for damage.
11.Replace nozzle into burner head and
tighten firmly (9.1-12.4 n-m /80-110
inch-pounds).
12.Attach burner head to combustion
chamber.
13.Install spark plug in burner head.
14.Attach spark plug wire to spark
plug.
15.Attach fuel and airline hoses to
burner head.
16.Replace fan (see page 10).
17.Replace fan guard and upper shell.
Spark Plug
1. Remove upper shell (see page 10).
2. Remove fan (see page 10).
3. Remove spark plug wire from spark
plug.
4. Remove spark plug from burner head
using 13/16" open-end wrench.
5. Clean and regap spark plug elec-
trodes to .075" gap.
6. Install spark plug in burner head.
7. Attach spark plug wire to spark plug.
8. Replace fan (see page 10).
9. Replace fan guard and upper shell.
Figure 12 - Spark Plug Removal
Figure 13 - Spark Plug Gap
Gap
Bend Here
to Adjust
Gap
Spark Plug Wire
Spark
Plug
Burner Head
Air Line Hose
Screw
Combustion
Chamber Burner Head Spark Plug Wire
Spark
Plug
Fuel Line Hose
Figure 14 - Removing Burner Head
Figure 15- Removing Nozzle
Nozzle
Face Nozzle Seal
Nozzle
Burner
Head Fuel Line
Fitting
Air Line
Fitting

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100 ROTOR-Domestic PFA/P 059A
Pump Rotor
(Procedure if rotor is binding)
1. Remove upper shell (see page 10).
2. Remove filter end cover screws
using 5/16" nut-driver.
3. Remove filter end cover and air
filters.
4. Remove pump plate screws using
5/16" nut-driver.
5. Remove pump plate.
6. Remove rotor, insert, and blades.
7. Check for debris in pump. If debris
is found, blow out with com-
pressed air.
8. Install insert and rotor.
9. Check gap on rotor. Adjust to
.076/.101 mm (.003"/.004") if
needed (see Figure 17).
Note: Rotate rotor one full turn to
insure the gap is .076/.101 mm
(.003"/.004") at tightest position.
Adjust if needed.
10.Installblades, pumpplate, airfilters,
and filter end cover.
11.Replace fan guard and upper shell.
12.Adjustpump pressure(see page11).
Note: If rotor is still binding, proceed as
follows.
13.Perform steps 1 through 6 above.
14.Placefinegradesandpaper(600grit)
on flat surface. Sand rotor lightly in
“figure 8”motion four times (see
Figure 18).
15.Reinstall insert and rotor.
16.Perform steps 10 through 12 above.
Fan Guard
Filter End Cover
Air Intake Filter
Pump Plate
Blade
Air Output Filter
Rotor
Insert
Figure 16 - Rotor Location
Sandpaper
Figure 18 - Sanding Rotor
Figure 17 - Gap Adjusting Screw Locations
Gap Adjusting Screw
Gap Adjusting Screw
.003"/.004" Gap
Measured With
Feeler Gauge
Rotor
Blade

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Output Rating (Btu/Hr.) 100,000 150,000
Fuel Use Only Kerosene or No. 1 Fuel Oil
Fuel Tank Capacity (Liters/U.S. Gal.) 34/9.0 51/13.5
Fuel Consumption (Liters/Gal. Per Hr.) 2.8/.76 4.1/1.1
Electric Requirements 120 V/60 Hz (Same All Models)
Amperage (Normal Run) 4.0 4.4
Hot Air Output (CMM/CFM) 13.6/480 14.2/500
Motor RPM 3450 3450
Motor HP 1/4 1/4
Approximate Shipping Weight (KG/Pounds) 27/60 31/68
Approximate Heater Weight without Fuel
(KG/Pounds) 23/51 26/57
SPECIFICATIONS
Purchase accessories and parts
from your local dealer.
REPLACEMENT
PARTS AND
ACCESSORY
White
Brown
Blue
Green/Yellow
120V/60Hz
Photocell
Spark Plug
Ignitor Flame-
Out
Control
B
Reset
Button
R
Red
Motor Blue
White
Blue
White
Green/
Yellow
White
Red
Red
Green/
Yellow Terminal
Board
Red
Relay
Black
WIRING
DIAGRAM
AIR GAUGE KIT - HA1180
Special tool to check pump pressure.

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Model BY100ECA, 100,000 Btu/Hr and Model BY150ECA, 150,000 Btu/Hr
WHEELS AND HANDLE PARTS LIST
BY100ECA BY150ECA
KEY PART PART 100,000 150,000
NO. NUMBER DESCRIPTION QTY. QTY.
1 HA2203 Handle 2 —
HA2204 Handles — 2
2 M12345-33 Screw, #10-24 x 1 3/4" 8 8
3 M12342-3 Wheel Support Frame 1 —
M12831-3 Wheel Support Frame — 1
4 NTC-3C Hex Nut, #10-24 8 8
5 097896-04 Wheel 2 2
6 M28526 Cap Nut 2 2
7 M51015-01 Axle 1 —
M16801-2 Axle — 1
1
2
3
4
5
7
6

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ILLUSTRATED
PARTS
BREAKDOWN
100,000 Btu/Hr
Model BY100ECA
Motor and Pump Assembly
7-1
7-2
Burner Head Assembly
7-8
7-3
7-4
7-5
7-6
1
2
3
4
5
6
7
8
23 19
910
16
11
12
15
25
26
27
24
28
29
20
22
21
30
31
41
33 34
35
36
26
14
13
40
39
17
18
32
37
38
42
43
44
10-1
10-2 10-3
10-4
10-5 10-6
10-7
10-8
10-9 10-10
10-11
10-12
10-13
10-14
10-15
10-16
10-17
10-18

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PARTS LIST
100,000 Btu/Hr
Model BY100ECA
This list contains replaceable parts used in your heater. When ordering parts,
besuretoprovidethecorrectmodelandserialnumbers(fromthemodelplate),
then the part number and description of the desired part.
KEY PART
NO. NUMBER DESCRIPTION QTY.
KEY PART
NO. NUMBER DESCRIPTION QTY.
1 098511-138 Upper Shell 1
2 100647-01 Screw, #10-16 x 1/2" 8
3 098512-31 Combustion Chamber 1
4 M16660 Photocell Bracket 1
5 M10908-2 Screw, #6-32 x 3/8" 2
6 HA3019 Photocell Assembly 1
7 ** Burner Head Assembly 1
7-1 100735-06 Nozzle 1
7-2 M10659-1 Nozzle Washer 2
7-3 M10809-1 Nozzle Spring 1
7-4 M8882 Nozzle Sleeve 1
7-5 M50924-03 Burner Head Body 1
7-6 M50820-02 Barb Fitting 2
7-7 HA3012 Spark Plug 1
8 M11084-27 Screw, #10-16 x 1/2" 3
9 097293-01 Fan 1
10 ** Motor and Pump Assembly 1
10-1 102001-06 Motor (Split Phase) 1
10-2 079975-02 Pump Body 1
10-3 FHPF3-5C Screw, #10-32 x 5/8" 2
10-4 M22009 Rotor Insert 1
10-5 M22456-1 Pump Rotor 1
10-6 M50545 Pump End Cover 1
10-7 M12179 Intake Filter 1
10-8 M16545 Filter End Cover 1
10-9 M8940 Steel Ball, 1/4" Diameter 1
10-10 M10993-1 Relief Spring 1
10-11 M27694 Adjusting Screw 1
10-12 M22997 Plug 1
10-13 M12461-31 Screw, #10-32 x 1" 10
10-14 M12244-1 Output Filter 1
10-15 M11637 Lint Filter 1
10-16 M50820-02 Barb Fitting 1
10-17 M8643 Blade 4
11 M50631 Rubber Bumper 2
12 101206-01 Motor Mounting Bracket 1
13 097061-01 Solid State Relay 1
14 M15823-39 Screw, #8-18 x 1/2" 2
15 NTC-4C Hex Lock Nut, 1/4-20 2
16 M51114-01 Fan Guard 1
17 102482-01 Ignitor Kit 1
18 M11084-29 Screw, #10-16 x 3/4" 2
19 M51345-01 Fuel Line 1
20 M51150-01 Fuel Filter 1
21 M51151-01 Fuel Line Tube 1
22 M10990-3 Rubber Bushing 1
23 M50814-03 Airline 1
24 098511-191 Lower Shell 1
25 M50104-03 Bushing 2
26 M50104-01 Bushing 2
27 M11084-27 Screw, #10-16 x 1/2" 6
28 M11271-8 Clip Nut 8
29 M10908-14 Screw, #8-32 x 3/8" 1
30 098513-75 Fuel Tank 1
31 097702-01 Fuel Cap (Includes Gasket) 1
32 HA3003 Flame-Out Control 1
33 M50400 Strain Relief Bushing 1
34 M15779-27 Power Cord 1
35 M51077-01AA Side Cover 1
36 M11084-27 Screw, #10-16 x 1/2" 4
37 099125-03 Terminal Board 1
38 099157-01 Rivet 1
39 079010-20 Wire Assembly (Red, 18") 1
40 M16841-57 Wire Assembly (Red, 6") 1
41 M27417 Drain Plug (Includes “o”Ring) 1
42 099177-01 Hex Nut, 3/8 - 27 1
43 099213-01 Button Plug 1
44 097468-01 Edge Liner 1
PARTS AVAILABLE - NOT SHOWN
097650-01 Tradename Decal 1
101888-21 Operation Decal
(English/French) 1
101888-20 Operation Decal
(Spanish/Dutch) 1
101639-04 Warning Decal 1
HA2210 Filler Neck Screen 1
M9900-192 Combustion Chamber
Grounding Wire 1
** Not available as an assembly.

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10-1
10-2 10-3
10-4
10-5 10-6
10-7
10-8
10-9 10-10
10-11
10-12
10-13
10-14
10-15
10-16
10-17
10-18
Motor and Pump Assembly
ILLUSTRATED
PARTS
BREAKDOWN
150,000 Btu/Hr
Model BY150ECA
7-1
7-6
7-5
7-4
7-3
7-2
7-7
Burner Head Assembly
7-8
1
2
3
4
5
6
7
8
23 19
910
16
11
12
15
25
26
27
24
28
29
20
22
21
30
31
41
33 34
35
36
26
14
13
23
40
39
17
18
32
37
38
43
44
42
27
45

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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.
** Not available as an assembly.
PARTS LIST
150,000 Btu/Hr
BY150ECA
KEY PART
NO. NUMBER DESCRIPTION QTY.
1 098511-138 Upper Shell 1
2 100647-01 Screw, #10-16 x 1/2" 8
3 098512-29 Combustion Chamber 1
4 099229-01 Photocell Bracket 1
5 M10908-2 Screw, #6-32 x 3/8" 2
6 HA3019 Photocell Assembly 1
7 *** Burner Head Assembly 1
7-1 100735-07 Nozzle 1
7-2 M10659-1 Nozzle Washer 2
7-3 M10809-1 Nozzle Spring 1
7-4 M8882 Nozzle Sleeve 1
7-5 M50924-03 Burner Head Body 1
7-6 M50820-02 Barb Fitting 2
7-7 HA3012 Spark Plug 1
8 M11084-27 Screw, #10-16 x 1/2" 3
9 097293-01 Fan 1
10 *** Motor and Pump Assembly 1
10-1 102001-06 Motor (Split Phase) 1
10-2 079975-02 Pump Body 1
10-3 FHPF3-5C Screw, #10-32 x 5/8" 2
10-4 M22009** Rotor Insert 1
10-5 M22456-1** Pump Rotor 1
10-6 M50545 Pump End Cover 1
10-7 M12179** Intake Filter 1
10-8 M16545 Filter End Cover 1
10-9 M8940** Steel Ball, 1/4" diameter 1
10-10 M10993-1** Relief Spring 1
10-11 M27694** Adjusting Screw 1
10-12 M22997** Plug 1
10-13 M12461-31 Screw, #10-32 x 1" 10
10-14 M12244-1** Output Filter 1
10-15 M11637** Lint Filter 1
10-16 M50820-02 Barb Fitting 1
10-17 M8643** Blade 4
11 M50631 Rubber Bumper 2
12 101206-01 Motor Mounting Bracket 1
13 097061-01 Solid State Relay 1
14 M15823-39 Screw, #8-18 x 1/2" 2
15 NTC-4C Hex Lock Nut, 1/4-20 2
16 M51114-01 Fan Guard 1
KEY PART
NO. NUMBER DESCRIPTION QTY.
17 102482-01 Ignitor Kit 1
18 M11084-29 Screw, #10-16 x 3/4" 2
19 M51345-01 Fuel Line 1
20 M51150-01** Fuel Filter 1
21 M51151-02 Fuel Line Tube 1
22 M10990-3 Rubber Bushing 1
23 M50814-03 Airline 1
24 098511-191 Lower Shell 1
25 M50104-03 Bushing 2
26 M50104-01 Bushing 2
27 M11084-27 Screw, #10-16 x 1/2" 8
28 M11271-8 Clip Nut 8
29 M10908-14 Screw, #8-32 x 3/8" 1
30 098513-76 Fuel Tank 1
31 097702-01 Fuel Cap (Includes Gasket) 1
32 HA3003 Flame-out Control 1
33 M50400 Strain Relief Bushing 1
34 098219-19 Power Cord 1
35 M51077-01AA Side Cover 1
36 M11084-27 Screw, #10-16 x 1/2" 4
37 099125-03 Terminal Board 1
38 099157-01 Rivet 1
39 079010-20 Wire Assembly (Red, 18") 1
40 M16841-57 Wire Assembly (Red, 6") 1
41 M27417 Drain Plug (Includes “O”Ring) 1
42 099230-01 Shoulder Screw 2
43 099177-01 Hex Nut, 3/8-27 1
44 099213-01 Button Plug 1
45 097468-01 Edge Liner 1
PARTS AVAILABLE - NOT SHOWN
HA2210 Filler Neck Screw 1
097643-01 Tradename Decal 1
101888-22 Operation Decal
(English/French) 1
101888-23 Operation Decal
(Spanish/Dutch) 1
101639-04 Warning Decal 1
M9900-192 Combustion Chamber
Grounding Wire 1

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EC
CONFORMITY
DECLARATION
EC CONFORMITY DECLARATION
DESA Europe B.V.
Industrieweg 167, 3044 AS
Postbus 11158
3004 ED Rotterdam
Holland
Manufacturer:
DESA International, Inc.
2701 Industrial Drive
Bowling Green, KY 42101 U.S.A.
Kerosene Portable Forced Air Heaters
Model Numbers: BY100ECA and BY150ECA
It is declared that these models conform to the Machinery Directive 89/392/EEC,
including 91/368/EEC, 93/68/EEC.
We declare that the models noted are in conformity.
Company DESA International, Inc.
Name Douglas D. Rohrer
Title Vice President, Specialty Products Engineering
07/04/95 —Bowling Green, KY
Date and Place Signature