Desa H.S.I. Series User manual

PORTABLE
FORCED
AIR HEATER
OWNER'S MANUAL
Heater Sizes:
115,000, 150,000, 155,000 and 165,000 Btu/Hr
H.S.I. Series
IMPORTANT: Read and understand this manual before assembling, start-
ing, or servicing heater. Improper use of heater can cause serious injury.
Keep this manual for future reference.

115,000, 150,000, 155,000 and 165,000 Btu/Hr
PORTABLE FORCED AIR HEATERS
SAFETY
INFORMATION
A WARNINGS
IMPORTANT: Read this Owner's
Manual carefully and completely
before trying to assemble, oper-
ate, or service this heater. Im-
proper use of this heater can
cause serious injury or death from
burns, fire, explosion, electrical
shock, and carbon monoxide
poisoning.
_k DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxide Poisoning: Early
signs of carbon monoxide poisoning re-
semble 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 preg-
nant 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 fireor explosion. Never use
gasoline, naphtha, paint thinners, alco-
hol, 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 lo-
cal regulations regarding the safe fu-
eling of heating units.
b) Only the typeof rue| specified on the
heater's data plate shall be used.
c) All flame, including the pilot light, if
any, shallbeextinguished andthe 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 (excep-
tion: the fuel reservoir integral with
the heater unit).
g) Whenever possible, fuel storage shall
be confined to areas where floor pen-
etrations 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 au-
thority 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 rec-
ommended that these enclosure materi-
als be of a fire retardant nature. These
enclosure materials shall be securely fas-
tened 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. This
heaterproduces carbon monoxide, which
is listed by the State of California as a
reproductive toxin under Proposition 65.
Use only in places free of flammable va-
pors or high dust content.
Use only the electrical voltage and fre-
quency specified on model plate.
Use only a three-prong, grounded exten-
sion cord.
Minimum heater clearances from com-
bustibles:
Outlet: 8 Ft. Sides: 4Ft.
Top: 4 Ft. Rear: 4 Ft.
Locate heater on a stable and level sur-
face 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.
• Approved by the New York City Fire
Department under certificate of approval
#4803, #4860, #4908, or #4909. To be
used only at construction sites in accor-
dance with applicable New York City
Codes, Regulations, Rules, Directives,
Permits, etc.
UNPACKING
l,
2,
3.
Remove all packing items applied to
heater for shipment.
Remove all items from carton.
Check items for shipping damage. If
heater is damaged, promptly inform
dealer where you bought heater.
2Io_o19

OWNER'S MANUAL
ASSEMBLY
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 1).
2.
3.
4.
5.
Place cap nuts on axle ends. Gently tap
with hammer to secure.
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 sup-
port frame.
Place front handle (and rear handle if
provided) on top of fuel tank flange.
Insert screws through handle(s), fuel
tank flange, and wheel support frame.
Attach nut finger tight after each screw
is inserted.
After all screws are inserted, tighten
nuts firmly.
Screw
Front
Handle
Handle
Fuel
Tank
Wheel
Support
Frame
Wheel Nut
Extended Hub
Axle
Figure 1 -Wheel and Handle Assembly
fO40f9 3

115,000, 150,000, 155,000 and 165,000 Btu/Hr
PORTABLE FORCED AIR HEATERS
PRODUCT IDENTIFICATION
Hot Air
Outlet
Upper Shell
Fan Guard
Lower Shell
FuelTank
Side Cover
Ignition Control Assembly
(assembly on inside of side cover)
Figure 2 Power Cord
THEORY OF OPERATION
The Fuel System: The air pump forces
air through the air line. The air is then
pushed through the nozzle. This air causes
fuel to lift from the tank. A fine mist of fuel
is sprayed into the combustion chamber.
The Air System: Themotor turns thefan.
The fan pushes air into and around the
combustion chamber. This air is heated and
provides a stream of clean, hot air.
The Ignition System: The ignition con-
trol assembly provides power to the ignitor.
This ignites the fuel/air mixture in the com-
bustion chamber.
The Flame-Out Control System: This
system causes the heaterto shut down if the
flame goes out.
-Combustion Chamber Motor -
_itor - Air Intake
Filter
Clean Cool
Heated Air
Air Out In
Output
Filter
FUELS
_,WARNING: Use only kerosene
or No. 1fuel oil toavoid risk of fire
or explosion. Never use gaso-
line, naphtha, paint thinners, al-
cohol, 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 a clogged fuel filter and/or nozzle.
IMPORTANT: Use a KEROSENE ONLY
storage container. Be sure storage container is
clean. Foreign matter such as rust, dirt, or
water will cause the ignition control assembly
to shut down the heater. Foreign matter may
also require you to clean fuel system often.
VENTILATION
_lb Follow the minimum fresh,
outside air ventilation require-
ments. Ifproper fresh, outside air
ventilation is not provided, car-
bon monoxide poisoning can
occur. Provide proper fresh, out-
side air ventilation before run-
ning heater.
Provide at least a three-square-foot opening
of fresh, outside air for each i00,000 Btu/Hr
rating. Provide extra fresh air if more heat-
ers are being used.
Examp/e: A 115,000 Btu/I-lr heater re-
quires one of the following:
• a two-car garage door (16 feet wide open-
ing) raised three inches
a single-car garage door (9 feet wide
opening) raised five inches
two 30 inch wide windows raised 8 _/2
inches
Fuel Air Line Ignition Control
Tank Filter To Burner Assembly
<_Air For Fuel System <_ Air For Combustion Fuel
And Heating -_
Figure 3 - Cross Section Operational View
4104019

OWNER'S MANUAL
OPERATION
_k WARNING: Review and un-
derstand the warnings in the
Safety Information section, page
2. They are needed to safely op-
erate this heater. Follow all local
codes when using this heater.
TO START HEATER
I. Follow all ventilation and safety infor-
mation.
2. Fill fuel tank with kerosene or No. 1
fuel oil.
3. Attach fuel cap.
4. Plug power cord of heater into three-
prong, grounded extension cord. Exten-
sion cord must be at least six feet long.
Extension Cord Wire Size Re-
quirements
•6 to 10 feet long, use 18 AWG rated
cord
•11 to 100 feet long, use 16 AWG
rated cord
• 101 to 200 feet long, use 14 AWG
rated cord
5, Plug extension cord into standard 120
volt/60 hertz, three-hole, grounded out-
let. Nolo: Ignitor will preheat for five
seconds then heater will start.
TO STOP HEATER
Unplug extension cord from outlet.
TO RESET HEATER
1. Unplug extension cord from outlet and
wait 10 seconds (two minutes if heater
has been running).
2. Plug extension cord into standard 120
volt/60 hertz, three-hole, grounded out-
let. Nolo: Ignitor will preheat for five
seconds then heater will start.
STORING,
TRANSPORTING,
OR SHIPPING
Nolo: If shipping, transport companies re-
quire fuel tanks to be empty.
1. Drain fuel tank.
Note: This model has a drain plug on
underside of fuel tank. Remove drain
plug to drain all fuel. Be sure all fuel is
removed.
2. Replace drain plug.
3. If any debris is noted in old fuel, add i
or 2 quarts of clean kerosene to tank,
stir, and drain again. This will prevent
excess debris from clogging filters dur-
ing future use.
4. Replace fuel cap and drain plug. Prop-
erly 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.
PREVENTATIVE MAINTENANCE SCHEDULE
I _ WARNING: Never service heater while it is plugged in, operating, or
A
hot. Severe burns and electrical shock can occur.
Item How Often
Fuel tank Flush every 150-200 hours of operation or
as needed.
How To
See Storing, Transporting, or Shipping,
above.
Air output and lint filters Replace every 500 hours of operation or SeeAirOutput, Airlntake, and Lint Fihers,
once a year. page 7.
Air intake filter Wash and dry with soap an water every 500 See Air Output, Air Intake, and Lint Filters,
hours of operation or replace as needed, page 7.
Fuel filter Clean twice a heating season or replace as See Fuel Filter, page 8.
needed.
Ignitor No maintenance required.
Fan blades Clean each season or as needed. See Fan, page 7.
Motor Not required/permanently lubricated
f04019 5

115,000, 150,000, 155,000 and 165,000 Btu/Hr
PORTABLE FORCED AIR HEATERS
TROUBLESHOOTING
Noto: For additional help, visit DESA
International's technical service web
site atwww.desatech.com.
_IL WARNING: Never service heater while it is plugged in, operating, or
hot. Severe burns and electrical shock can occur.
FAULT CONDITION POSSIBLE CAUSE REMEDY
Motordoesnotstartfivesecondsafterheater 1. No power to heater I. Check circuit breaker in electrical panel
is plugged in
WARNING: High voltage!]
2. Bad electrical connection between mo-
tor and ignition control assembly or ig-
nition control assembly and power cord
3. Blown fuse on ignition control assembly
4. Binding pump rotor
5. Defective ignition control assembly
6. Defective motor
2. Check all electrical connections. See
Wiring Diagram, page 11
3. See lgnition Control Assembly,, page 10
4. If fan does not turn freely, see Pump
Rotor, page 10
5. Replace ignition control assembly
6. Replace motor
Motor starts and runs but heater does not
ignite
1. No fuel in tank
2. Pump pressure incorrect
3. Dirty fuel filter
4. Obstruction in nozzle assembly
5. Water in fuel tank
1. Fill tank with kerosene
2. See Pump Pressure Adjustment, page7
3. See Fuel Filter, page 8
4. See Nozzle Assembly, page 9
5. Drain and flush fuel tank with clean
kerosene. See Storing, Transporting, or
Shipping, page 5
I_ WARNING: High voltage! I
6. Bad electrical connection between igni-
tor and ignition control assembly
7. Defective ignitor
8. Defective ignition control assembly
6. Check electrical connections. See Wir-
ing Diagram, page I1
7. Replace ignitor, see page 8
8. Replace ignition control assembly
Heater ignites but ignition control assembly
shuts heater off after a short period of time 1. Pump pressure incorrect
2. Dirty air intake, air output, and/or lint
filter
3. Dirty fuel filter
4. Obstruction in nozzle assembly
5. Photocell assembly not properly in-
stalled (not seeing the flame)
1. See Pump Pressure Adjustment, page 7
2. SeeAir Output, Air bztake, and Lint Fil-
ters, page 7
3. See Fuel Filter, page 8
4. See Nozzle Assembly, page9
5. Make sure photocell boot is properly
seated in bracket
I_ WARNING: High voltage! I
6. Dirty photocell lens
7. Bad electrical connection between pho-
tocell and ignition control assembly
8. Defective photocell
9. Defective ignition control assembly
6. Clean photocell lens
7. Check electrical connections. See Wir-
ing Diagram, page 11
8. Replace photocell
9. Replace ignition control assembly
www.desatech.com
6104O19

OWNER'S MANUAL
SERVICE
PROCEDURES
_k WARNING: Never service
heater while it is plugged in, op-
erating, or hot. Severe burns and
electrical shock can occur.
UPPER SHELL REMOVAL
I. 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.
Upper
Shell Fan
Guard
Figure 4 - Upper Shell Removal
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 5).
7. Place setscrew on fiat of shaft. Tighten
setscrew firmly (40-50 inch-pounds).
8. Replace fan guard and upper shell.
Figure 5 - Fan Cross Section
AIR OUTPUT, AIR INTAKE,
AND LINT FILTERS
1. Remove upper shell (see Upper Shell
Removal).
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 5).
6. Replace filter end cover.
7. Replace fan guard and upper shell.
IMPORTANT." Do not oil filters.
Air Intake Filter
Filter End Cover
Fan Guard
Lint/
Air Output Filter
Figure 6 - Air Output, Air Intake, and Lint
Filters
PUMP PRESSURE
ADJUSTMENT
1. Removepressuregaugeplug ffom fiher
end cover(see Figure 7).
2. Install accessory pressure gauge (part
number HAll80).
3.
4.
Start heater (see Operation, page 5).
Allow motor to reach full speed.
Using a flat blade screwdriver, adjust
pressure. Turn relief valve to right to
increase the pressure. Turn relief valve
to left to decrease the pressure. Set
pump pressure at 5.3 PSI for 115,000
Btu models, 5.4 PSI for both 150,000
Btu models and 155,000 Btu models,
and 5.6 PSI for 165,000 Btu models.
5. Stop heater (see Operation, page 5).
6. Remove pressure gauge. Replace pres-
sure gauge plug in filter end cover.
Relief
Valve
Pressure
Gauge
Plug
Figure 7-Pressure Gauge PlugRemoval
Pressure
Gauge
Figure 8 -Adjusting Pump Pressure
Continued
104019 7

115,000, 150,000, 155,000 and 165,000 Btu/Hr
PORTABLE FORCED AIR HEATERS
SERVICE
PROCEDURES
Continued
AWARNING: Never service
heater while it is plugged in, op-
erating, or hot. Severe burns and
electrical shock can occur.
FUEL FILTER
i. 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 re-
place in tank.
6. Attach upper fuel line to fuel filter neck.
7. Replace side cover•
Fuel Filter, Bushing,
and Lower Fuel Line
Upper Fuel Line
Side Cover
Figure 9 -Fuel Filter Removal
IGNITOR Combustion
Chamber
1. Remove upper shell and fan guard (see "_-
page 7).
2. Remove fan (see page 7).
3. Remove 4 side cover screws with a Air
Line
5/16" nut driver• Remove side cover
(see Figure 9). Hose --
4. Disconnect ignitor wires (yellow) from Fuel
ignition control assembly (see Figure Line
i0). Pull the ignitor wires up through Hose
the hole in the lower shell•
5. Disconnect fuel line hose and air line
hose. Remove photocell from photocell Photocell
bracket (see Figure 10), Bracket
6. Remove combustion chamber• Stand
combustion chamber on end with Assembly
nozzle adapter bracket on top (see Fig-
ure 11).
7. Remove ignitor screw with a 1/4" nut
driver• Carefully remove ignitor from
nozzle adapter bracket.
,_ CAUTION: Do not bendor strike
Ignitor element. Handle with care.
8. Carefully remove replacement ignitor
from styrofoam packing.
9. Carefully guide ignitor into opening in
nozzle adapter bracket• Do not strike
ignitor element• Attach ignitor to
nozzle adapter bracket with screw us-
ing a l/4" nut driver (see Figure i0).
Torque 8 to 15 in. Ibs. Do not over
torque.
10. Replace combustion chamber.
11. Route the ignitor wires back down
through the hole in the lower shell.
Connect wires to the ignition control
assembly.
12. Replace side cover (see Figure 9).
13. Connect and route fuel line hose and
air line hose to nozzle assembly. See
Fuel and Air Line Replacement and
Proper Routing, page 9.
14. Replace photocell in photocell bracket.
15. Replace fan (see page 7).
16. Replace fan guard and upper shell (see
page 7).
Nozzle
Adapter
,.Ignitor
tlgnitor
Wires
/
Ignition
Control
Figure 10 -Disconnecting Ignitor Wires
from Ignition Control Assembly
Ignitor Screw/Washer-_.__@
Assembly i
@_ Ignitor
Photocell I I Nozzle
Bracket I [Adapter
_" Bracket
J
Combustion Nozzle Adapter
Chamber Bracket Opening
Figure 11 -Ignitor Replacement
8104019

OWNER'S MANUAL
SERVICE
PROCEDURES
Continued
NOZZLE ASSEMBLY
1. Remove upper shell (see page 7).
2. Remove fan (see page 7).
3. Remove fuel and air line hoses from
nozzle assembly (see Figure 12 or 13).
4. Turn nozzle assembly 1/4 turn to left
and pull toward motor to remove (see
Figure 14).
5. Place plastic hex-body into vise and
lightly tighten.
6. Carefully remove nozzle from the
nozzle adapter using 5/8" socket
wrench (see Figure 15).
7. Blow compressed air through face of
nozzle. This will free any dirt in nozzle
area.
8. Inspect nozzle seal for damage.
9. Replace nozzle into nozzle adapter un-
til nozzle seats. Tighten 1/3 turn more
using 518" socket wrench (40-45 inch-
pounds). See Figure 15.
10. Attach nozzle assembly to burner strap.
11. Attach fuel and airline hoses to nozzle
assembly. See Fuel and Air Line Re-
placement and Proper Routing.
12. Replace fan (see page 7).
13. Replace fan guard and upper shell (see
page 7).
Combustion
Strap _)N//_ III
A,,,,neliYI IL"? lll
Hose __/_'_/
Bracket
Figure 12 - Removing Air and Fuel Line
Hoses (115,000 Btu/Hr Models Only)
Combustion _FUEL AND AIR LINE
Chambe /F!l
Burner // I1¢'1_1II I
s,rap iil "
zzle/
If"_/_:,_dapter 4.
_:_ Fuel Line
REPLACEMENT AND
PROPER ROUTING
Photocell!
Bracket, _/
Air Line
Hose
Hose
Remove upper shell (see page 7).
Remove side cover screws using 5/16"
nut driver.
Figure 13 -Removing Air and Fuel Line
Hoses (150, 155, and 165,000 Btu/Hr 5.
Models Only)
Combustion
Cham_er /////_ )) Nozzle/
Adapter
_ Asse/mbly
Figure 14 - Removing Nozzle/Adapter
Assembly
Nozzle
Face
Remove side cover.
Inspect fuel and air line hoses for cracks
and/or holes. If fuel line hose is dam-
aged, disconnect from nozzle adapter
(see Figure 12 or 13) and from fuel fil-
ter (see page 8). If air line hose is dam-
aged, disconnect from nozzle adapter
(see Figure 12 or 13) and from barb fit-
ring on pump end cover (see Figure 16).
Install new air and/or fuel line. Attach
one end of air line hose to barb fitting
on pump end cover (see Figure 16) and
the other end to nozzle adapter (see
Figure 12 or 13). Attach one end of fuel
line hose to fuel filter (see page 8) and
the other end to nozzle adapter (see
Figure 12 or 13).
For 115,000 Btu heater, route air and
fuel line approximately as shown in
Figure 12.
Note: Hoses are not to be touching pho-
tocell bracket.
For 150, 155, and 165,000 Btu heaters,
route air and fuel line approximately
as shown in Figure 13.
Note: Hoses are not to be touching pho-
tocell bracket.
Nozzle
Seal 6. Replace side cover.
7. Replace upper shell and fan guard (see
page 7).
Nozzle Pump End Cover
Nozzle
Adapter Barb Fitting
Air Line
Fitting Fuel Une
Fitting
Figure 15 - Nozzle and Nozzle Adapter
Figure 16- Air Hose to Barb Fitting
Continued
i_;9 9

115,000, 150,000, 155,000 and 165,000 Btu/Hr
PORTABLE FORCED AIR HEATERS
SERVICE
PROCEDURES
Continued
PUMP ROTOR
(Procedure if Rotor is Binding)
1. Remove upper shell (see page 7).
2. Remove filter end cover screws using
5/i6" nut-driver.
3.
4.
5.
6.
7.
8.
9.
Remove filter end cover and air filters
(see Figure 17).
Remove pump plate screws using 5116"
nut-driver.
Remove pump plate.
Remove rotor, insert, and blades.
Check for debris in pump. If debris is
found, blow out with compressed air.
Install insert and rotor.
Check gap on rotor. Adjust to .003"/
.004" if needed (see Figure 18).
Note: Rotate rotor one full turn to in-
sure the gap is .003"/.004" at tightest
position. Adjust if needed.
10. Install blades, pump plate, air filters,
and filter end cover.
11. Replace fan guard and upper shell.
12. Adjust pump pressure (see page 7).
Note: If rotor is still binding, proceed
as follows.
13, Perform steps 1 through 6 above.
14. Place fine grade sandpaper (600 grit)
on flat surface. Sand rotor lightly in
"figure 8" motion four times (see Fig-
ure 19).
15. Reinstall insert and rotor.
16. Perform steps 10 through 12 above.
IGNITION CONTROL
Pump Plate ASSEMBLY
/Air Intake Filter !Procedure for Replacing Fuse)
_'_,,.__'/_'_..._ /Filter End !
/1.
Rotor X o_._ _ 2"
Air Output "_/_
Filter _ _#" 3.
_, WARNING: High Voltage!
Unplug heater
Remove side cover screws (4) using
5/16" nut-driver to expose ignition con-
trol assembly.
Remove fuse cover (see Figure 20).
4. Remove fuse from fuse clips.
5. Replace fuse with fuse of the same type
and rating (GMA-I0). Do not substi-
tute a fuse with a higher current rating.
6. Replace fuse cover.
7. Replace side cover.
Fan Guar
Figure 17- Rotor Location
Gap Adjusting Screw
Blade
\
.003"/.004"
' Gap
Measured
With
Feeler
Gauge
Fuse Fuse
Clips Cover
!
Gap Adjusting Screw
Figure 18 -Gap Adjusting Screw
Locations
Sandpaper
\
Figure 20 -Replacing Fuse
Figure 19 -Sanding Rotor
10 104019

OWNER'S MANUAL
WIRING DIAGRAM
Yellow
Black
Power Plug I
120V__...J
IWhite
Red
Blue
Photocell@ Blue
,..L, Motor Main
=,J-,120V (L1)
_.._:=AC Neutral (1_2)
Ignition Control
''-I-_Motor Return
,_L,Ignitor
,_L,Photocell
c:p Photocell
Figure 21 -Wiring Diagram
SPECIFICATIONS
Output Rating (Btu/Hr) t 15,000 150,000 155,000 165,000
Fuel Use Only Kerosene or No. 1 Fuel Oil
Fuel Tank Capacity (U.S. Gal.) 9.0 13.5 13.5 !3.5
Fuel Consumption (Gal. Per Hr.) .85 1.1 1.14 1.2
Electric Requirements 120 V/60 Hz
Amperage (Normal Run) 3.6 3.6 3.6 3.6
Hot Air Output (CFM) 490 550 550 575
Motor RPM 3440 3440 3440 3440
Motor I-IP 1/5 1/5 1/5 1/5
Shipping Weight
(Approximate Pounds) 58 67 67 67
Heater Weight without Fuel
(Approximate Pounds) 49 56 56 56
1o4o_9 11

115,000, 150,000, 155,000 and 165,000 Btu/Hr
PORTABLE FORCED AIR HEATERS
ILLUSTRATED
PARTS
BREAKDOWN
Bl15, Rl15, REM115
B150J, R155B
REM150E, REM155B
R165A, B165A
lO
28
20
22
21
30 \
10-1
10-2
10-3
35
36 32
33
34
10-6
Motor and Pump Assembly 10-13
10-7
10-12
10-9
10-11
12 fo4o19

OWNER'S MANUAL
PARTS LIST
Bl15, Rl15, REM115
B150J, R155B
REM150E, REM155B
R165A, B165A
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.
KEY
NO.
2
3
4
5
6
77-1
7-2
7-3
7-4
7-5
8
9
10
10-1
10-2
10-3
10-4
10-5
10-6
10-7
10-6
10-9
10-10
10-11
10-12 i
10.13 _
10-14
10-15
10-16
10-17
11
PART
NUMBER
098511-138
098511-66
098511-135
100647-01
098512-54
098512-59
098512-60
103971-01
103154-05
M10908-2
M16656-24
100735-19
100735-20
100735-2t
102548-03
104023-01
102336-01
104054-01
M11084-27
097293-01
102042-01
102001-21
079975-02
FHPF3-5C
M22009"*
M22456-1"*
M50545
M12179"*
M16545
M8940"*
M10993-1"*
M27694"*
M22997"*
M12461-31
M12244-1"*
M11637"*
M50820-02
M8643"*
M50631
PART
DESCRIPTION NUMBER
QTY. KEYNO.
Upper Shell (Yellow) 112
Upper Shell (Black) 113
Upper Shell (White) 1 i 14
Screw, #10-16 x1/2" 8 ! 15
Combustion Chamber (115) 1 16
Combustion Chamber (150/155) 1 17
Combustion Chamber (165) 1 18
Photocell Bracket (115) 1 19
Photocell Bracket (150/155/165) 1 20
Screw, #6-32 x 3/8" 2 21
Photocell Assembly 1
Burner Head Assembly 1 22
Nozzle Assembly (115) 1 23
Nozzle Assembly (150/155) 1 24
Nozzle Assembly (165) 1
Ignitor Kit 1
Assembly, ScrewANasher 1 25
Nozzle Adapter Bracket 1 26
Nozzle Adapter 1 27
Screw, #10-16 x 1/2" 2 28
Fan (115) 1 29
Fan (150/155/165) 1 30
Motor and Pump Assembly 1
Motor 1 31
Pump Body 1 32
Screw, #10-32 x 5/8" 2 33
Rotor Insert 1 34
Pump Rotor 1 35
Pump End Cover 1 36
Intake Filter 1 37
Filter End Cover 1
Steel Ball, 1/4" Diameter 1
Relief Spdng 1
Adjusting Screw 1
Plug 1
Screw, #10-32 x 1" 10
Output Filter 1
Lint Filter 1
Barb Fitting 1
Blade 4
Rubber Bumper 2
101206-01
101695-01
104068-02
NTC-4C
M51114-01
M27417
099213-01
M51345-06
M51150-01"*
M51151-01
M51151-02
M10990-3
_M50814-03
098511-140
098511-137
098511-82
M50104-03
M50104-01
Ml1084-27
Ml1271-8
M10908-14
098513-21
098513-55
097702-01
102349-01
Ml1143-1
098219-19
M510T'/_9AA
Ml1084-27
103814-01
DESCRIPTION
Motor Mounting Bracket
Button Plug
Ignition Control Assembly
Hex Lock Not, 1/4-20
Fan Guard
Drain Plug (Includes "o" Ring)
Button Plug
Fuel Line
Fuel Filter
;Fue LineTube (115)
Fuel Line Tube (150/155/165)
Rubber Bushing
Airline
Lower Shell (Yellow)
Lower Shell (White)
Lower Shell (Black)
Bushing
Bushing
Screw, #10-16 x 1/2"
Clip Nut
Screw, #8-32 x 3/8"
Fuel Tank (115)
Fuel Tank (150/155/165)
Fuel Cap (Includes Gasket)
P.C. Board Support
Strain Relief Bushing
Power Cord
Side Cover
Screw, #10-16 x 1/2"
Wire Tie (Not Shown)
OPTIONAL ACCESSORIES
QTY.
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
2
2
6
8
1
1
1
1
5
1
1
1
4
I
HA1210
HAl180
HA2210
HA3004
HA3017
HA3020
Hang-up Thermostat
Air Gauge Kit
Fuel Tank Filter Screen
Rotor Kit(M22456-1, M22009, M8643)
Filter Kit(M11637, M12179, M12244-1,
M51150-01)
Pump Kit (M27694, M10993-1, M22997,
M8940)
** See OPTIONAL ACCESSORIES
"'* Not available as an assembly.
_o4o7g 13

115,000, 150,000, 155,000 and 165,000 Btu/Hr
PORTABLE FORCED AIR HEATERS
PARTS LIST
WHEELS AND HANDLE PARTS LIST PARTS AVAILABLE - NOT SHOWN
KEY PART
NO, QTY. NUMBER DESCRIPTION QTY.
12 (if equipped)
2 (if equipped)
3
4
5
6
7
PART
NUMBER
HA2203
HA2204
M12345-33
MI2342-3
M12831-3
NTC-3C
097896-04
097896-01
M28526
M51015-01
M16801-2
PART
DESCRIPTION
Handle (115 Btu)
Handle (150, 155, 165 Btu
Screw, #10-24 x 1 3/4"
(B115, B150J, B165A)
(Rl15, REM115, R155B,
REM1,50E, REM155B, R165h
Wheel Support Frame (115
Wheel Support Frame
(150, 155, 165 Btu)
Hex Nut, #10-24
(B115, B150J, B165A)
(Rl15, REM115, R155B,
REM150E, REM165B, R165A
Wheel (Master and
Remington)
Wheel (Reddy)
Cap Nut
Axle (115 Btu)
Axle (150, 155, 165 Btu)
6
1
8
6
2
2
2
1
1
098493-01
097644-06
097204-16
097773-06
!097643-01
097204-11
097773-02
097773-05
097644-08
097204-10
General Information Decal 1
Tradename Decal (B115) 2
Tradename Decal (R115) 2
Tradename Decal (REM 115) 2
Tradename Decal (B150J) 2
Tradename Decal (R155B) 2
Tradename Decal (REM150E) 2
Tradename Decal (REM155B) 2
Tradename Decal (B165A) 2
Tradename Decal (R165A) 2
1
\
6
14 io4o19

OWNER'S MANUAL
REPLACEMENT
PARTS
Note: Use only original replacement parts.
This will protect your warranty coverage for
parts replaced under warranty.
PARTS UNDER WARRANTY
Contact authorized dealers of this product.
If they can't supply original replacement
part(s), call DESA International's Techni-
cal Service Dept. at 1-800-323-5190.
When calling DESA International, have
ready
•your name
• your address
• model number of your heater
• how heater was malfunctioning
•purchase date
Usually, we will ask you to return the defec-
tive part to the factory.
PARTS NOT UNDER
WARRANTY
Contact authorized dealers of this product.
If they can't supply original replacement
part(s), call DESA International's Parts De-
partment at 1-800-972-7879 for referral in-
formation. Parts Centrals are listed in the
Authorized Service Center booklet supplied
with heater.
When calling DESA International, have
ready:
model number of your heater
• the replacement part number
TECHNICAL
SERVICE
You may have further questions about op-
eration or troubleshooting. If so, contact
DESA International's Technical Service
Dept. at 1-800-323-5190.
You can also visit DESA International's
technical services web site at
www.desatech.com
ACCESSORIES
Purchase accessories and parts from your
nearest dealer or service center. If they can
not supply these accessories or parts, either
contact your nearest Parts Central or DESA
International for referral information. Parts
Centrals are listed in the Authorized Service
Center booklet supplied with heater.
DESA International
P.O. Box 90004
Bowling Green, KY
42102-9004
1-800-972-7879
Parts Department
AIR GAUGE KIT -HAl180
Special tool to check pump pressure.
IGNITION CONTROL
ASSEMBLY/PHOTOCELL
TESTER -HAl170
Special tool used to test the ignition control
assembly and photocell.
THERMOSTAT KIT- HA1210
Keeps your building at the temperature you
select day and night. Helps economize on
fuel.
_o4o19 15

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 associ-
ated 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 EX-
PRESSED OR IMPLIED, INCLUDING WARRAN-
TIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE.
DESA International assumes no responsibility for in-
direct, 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 War-
ranty gives you specific legal rights and you may also
have other rights which vary from state to state.
WARRANTY SERVICE
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 workman-
ship. If so, DESA International will repair or replace the
heater without charge.
REPAIR SERVICE
Return the heater to your nearest authorized service
center. Repairs not covered by the warranty will be billed
at standard prices.
Illustrated parts lists can be obtained free of charge. Send
a self addressed stamped envelope to the address listed
below. List the heater model number and the date located
in the lower right corner of this page. 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 befilledin by purchaser)
DESA
INTERNATIONAL
Corporate Headquarters
2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004
Llli[lllll lmllilli
10401901
NOT A UPC
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. 104019-01
Rev. E
11/98