Desa RC40 Le manuel du propriétaire

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Le manuel du propriétaire

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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.
CANADIAN PORTABLE
FORCED AIR HEATERS
OWNER’S MANUAL
50 SIDE PFA/PV 010A
Models: RC40, RC55T, RC70T,
RC115T and RC165T
DESA Industries of Canada, Inc. 2220 Argentina Rd. unit #4 Mississauga, Ontario LSN 2K7
®
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TM
TABLE OF CONTENTS
SAFETY INFORMATION ............................................................ 2
PRODUCT IDENTIFICATION ..................................................... 3
UNPACKING ............................................................................... 3
ASSEMBLY ................................................................................. 3
THEORY OF OPERATION ......................................................... 4
FUELS......................................................................................... 5
VENTILATION............................................................................. 5
OPERATION ............................................................................... 5
STORING, TRANSPORTING, OR SHIPPING............................ 6
PREVENTATIVE MAINTENANCE SCHEDULE ......................... 6
TROUBLESHOOTING ................................................................ 7
SERVICE PROCEDURES .......................................................... 8
WIRING DIAGRAMS................................................................. 13
SPECIFICATIONS .................................................................... 14
ACCESSORIES ........................................................................ 15
ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST ....... 16
WARRANTY AND REPAIR SERVICE ........................ Back Cover
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IMPORTANT: Read this owners 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, re, explo-
sion, electrical shock, and 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 (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.
WARNINGS
DANGER: Carbon monoxide poisoning may lead
to death!
SAFETY INFORMATION
Use only kerosene, #1/#2 diesel/fuel oil, JET A or JP-8 fuels to
avoid risk of fire or explosion. Never use gasoline, naphtha, paint
thinners, alcohol, or other highly flammable fuels.
Use only with the electrical voltage and frequency specified on
model plate.
Heater must be grounded. Use only a properly grounded three-
wire extension cord. Plug into grounded outlet only.
Use only in areas free of flammable vapors or high dust content.
Minimum clearance from any combustible materials: 8 feet (244
cm) from hot air outlet; 6 feet (183 cm) from top; and 2 feet (61
cm) from sides and inlet.
Locate heater on a stable and level surface while hot or operat-
ing or a fire may occur.
Use only in well ventilated areas. Provide ventilation of at least
three square feet (2,800 square cm) for each 100,000 Btu/Hr of
rating.
Keep children and animals away from heater at all times.
Never start heater when combustion chamber is hot or if fuel
has accumulated in combustion chamber.
When used with a thermostat, heater may start at anytime.
When heater is moved or stored, it must be in a level position or
fuel spillage may occur.
Use heater only in accordance with local ordinances and codes.
Never use gasoline, crankcase drainings, naphtha, paint thinners,
alcohol, or other highly flammable fuels.
Never use heater where gasoline, paint thinner, or other highly
flammable vapors are present.
Never use heater in living or sleeping areas.
Never leave a heater plugged in without adult supervision if
children or animals are likely to be present.
Never move, handle, refuel, or service a hot, operating, or
plugged-in heater.
Never block air inlet at motor end (rear) of heater.
Never attach duct work to front of heater.
Never attach heater to external fuel tank.
SAFETY INFORMATION
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PRODUCT IDENTIFICATION
Figure 1 - 40 Model
Figure 2 - 55T/70T Models
Handle
Fuel
Cap
Lower
Shell
Power Cord
Fuel Tank
Hot Air
Outlet
Air Filter
End Cover
Fan Guard
Upper Shell
Side Cover
Ignition Control
Assembly
(assembly on inside
of side cover)
Thermostat
Knob
Nose Cone Guard
Side Cover
Fuel
Tank
Lower
Shell
Hot Air
Outlet
Nose Cone Guard
Handle
Upper Shell
Power Cord
Fuel
Cap
Air Filter
End
Cover
Fan Guard
Ignition Control
Assembly
(assembly on inside
of side cover)
Figure 3 - 115T/165T Models
Lower
Shell
Hot Air
Outlet
Fan Guard
Fuel
Tank
Side Cover
Fuel Cap
Upper Shell
Power Cord
Ignition Control
Assembly (assembly on
inside of side cover)
Thermostat
Knob
UNPACKING
1. Remove all protective packaging that has been applied to heater
for shipment
2. Remove heater from carton.
3. Check heater for any shipping damage. If damage is found,
promptly inform dealer where heater was purchased.
ASSEMBLY
(FOR 40, 55T, AND 70T MODELS ONLY)
These models are furnished with a nose cone guard. Nose cone
guard and mounting screws are found in the shipping carton.
Tools Needed
5/16" Nut Driver or Wrench
1. Place nose cone guard on top of upper shell flange. Make sure
nose cone guard is on hot air outlet end of heater.
2. Insert screws through nose cone guard and upper shell flange.
3. Tighten screws firmly.
Figure 4 - Nose Cone Guard Assembly, 40/55T/70T Models Only
Nose Cone
Guard
Screw
Hot Air
Outlet
Upper
Shell
Flange
PRODUCT IDENTIFICATION
UNPACKING
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 nozzle. This air causes fuel to be lifted
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 ignition control assembly provides
power to the ignitor. This ignites the fuel/air mixture in the combus-
tion chamber.
The Flame-Out Control System: This system causes the heater to
shut down if the flame goes out.
Figure 6 - Cross Section Operational View
(FOR 115T AND 165T MODELS ONLY)
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 is 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:
Place extended hub of wheel toward wheel
support frame.
2. Place cap nuts on axle ends. Gently tap with hammer to se-
cure.
3. Place heater on wheel support frame assembly. Make sure air
inlet end of heater is over wheels.
4. Place front handle 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.
5. Tighten all nuts firmly.
Figure 5 - Wheel and Handle Assembly, 115T/165T Models Only
Front
Handle
Hot Air
Outlet
Fuel Tank
Flange
Wheel
Support
Frame
Wheel
Cap Nut
Axle
Nut
Extended Hub
Air Inlet
Screw
ASSEMBLY
Continued
Clean
Heated
Air Out
Fuel
Filter
Air
Output
Filter
Air Pump
Air Intake
Filter
Cool
Air In
Fan
Combustion Chamber
Ignitor
Motor
Air For Fuel
System
Air For
Combustion
And Heating
Fuel
Nozzle
Fuel
Tank
Ignition Control
Assembly
Air Line
To Burner
ASSEMBLY
THEORY OF OPERATON
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Example:
A 165 model heater requires one of the following:
a two-car garage door (16 ft. [4.88 m] wide opening) raised four
inches (10.16 cm)
a single-car garage door (9 ft. [2.74 m] wide opening) raised seven
inches (17.78 cm)
two, thirty-inch (76.20 cm) windows raised twelve inches (30.48
cm)
WARNING: Provide a fresh air opening of at least
three square feet (2,800 square cm) for each 100,000
BTU/HR rating. Provide extra fresh air if more heaters
are being used. The minimum ventilation require-
ments must be followed to avoid risks associated
with carbon monoxide poisoning. Make certain these
requirements are met prior to operating heater.
VENTILATION
FUELS
Use only kerosene, #1/#2 diesel/fuel oil, JET A or JP-8 fuels.
Heavier fuels such as No. 2 fuel oil or No. 2 diesel fuel may also be
used but will result in:
noticeable odor
additional fuel filter maintenance
the need for nontoxic, anti-icer additives in very cold weather
Do not use fuels heavier than No. 2 grade or heavy oils such as oil
drained from crankcases. These heavy oils will not ignite properly
and will contaminate the heater.
IMPORTANT:
Use a KEROSENE ONLY (blue) or DIESEL ONLY
(yellow) storage container. Be sure storage container is clean. For-
eign matter such as rust, dirt, or water will cause the ignition control
assembly to shut down heater. Foreign matter may also require
heater's fuel system to be frequently cleaned.
WARNING: Use only kerosene, #1/#2 diesel/fuel
oil, JET A or JP-8 fuels to avoid risk of re or explo-
sion. Never use gasoline, oil drained from crank-
cases, naphtha, paint thinners, alcohol or other highly
ammable fuels.
TO START HEATER
1. Follow all ventilation and safety information.
2. Fill fuel tank with kerosene, #1/#2 diesel/fuel oil, JET A or JP-
8 fuels.
3. Attach fuel cap.
4. For thermostat models 55T, 70T, 115T, and 165T, turn ther-
mostat knob clockwise to the high position.
5. Plug heater’s power cord into approved, grounded, three-wire
extension cord. Extension cord must be at least six feet (1.8
meters) long.
Extension Cord Size Requirement
6 to 10 feet (1.8 to 3 meters) long, use 18 AWG (0.75 mm
2
)
rated cord
11 to 100 feet (3.3 to 30.5 meters) long, use 16 AWG (1.0
mm
2
) rated cord
101 to 200 feet (30.8 to 61 meters) long, use 14 AWG (1.5
mm
2
) rated cord
6. Plug extension cord into standard 120 volt/60 hertz, 3-prong
grounded outlet.
Note:
Ignitor will preheat for five seconds,
then heater will start.
7. For thermostat models 55T, 70T, 115T, and 165T, adjust ther-
mostat knob to the desired setting.
Note:
A cold heater may
affect the thermostat setting. This thermostat is a general-heat-
ing control. It is not intended for precise temperature control.
Adjust thermostat until heater cycles at the desired setting.
TO STOP HEATER
Unplug extension cord from outlet.
TO RESTART HEATER
1. Unplug extension cord from outlet and wait 10 seconds. (Wait
two minutes if heater has been running.)
2. Repeat steps under To Start Heater.
OPERATION
IMPORTANT: Review and understand the warnings
in the
Safety Information
section. They are needed to
safely operate this heater. Follow all local ordinances
and codes when using this heater.
FUELS
VENTILATION
OPERATION
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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 ex-
cess debris from clogging filters during future use.
WARNING: To avoid risk of burn and electrical
shock, never attempt to service heater while it is
plugged in, operating, or hot.
PREVENTATIVE
MAINTENANCE SCHEDULE
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 lint filters Replace every 500 hours of See Air Output, Air Intake,
operation or once a year and Lint Filters, page 8
Air intake filter Wash and dry with soap and See Air Output, Air Intake,
water every 500 hours of and Lint Filters, page 8
operation or replace as needed
Fuel filter Clean twice a heating season See Fuel Filter, page 9
or replace as needed
Ignitor None required
Fan blades Clean every season or See Fan, page 8
as needed
Motor Not required/permanently
lubricated
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.
STORING, TRANSPORTING, OR SHIPPING
PREVENTATIVE MAINTENANCE SCHEDULE
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TROUBLESHOOTING
WARNING: Never service heater while it is plugged
in, operating, or hot. Severe burns and electrical
shock can occur.
REMEDY
1. Check circuit breaker in electrical panel
2. Turn thermostat knob to a higher setting
3. Check all electrical connections. See
Wiring Diagrams, page 13
4. If fan does not turn freely, see Pump Ro-
tor, page 12
5. Replace ignition control assembly
6. Replace motor
1. Fill tank with kerosene
2. See Pump Pressure Adjustment, page 9
3. See Fuel Filter, page 9
4. See Nozzle Assembly, page 11
5. Drain and flush fuel tank with clean
kerosene. See Storing, Transporting, or
Shipping, page 6
6. Check electrical connections. See Wir-
ing Diagrams, page 13
7. Replace ignitor, see page 10
8. Replace ignition control assembly
1. See Pump Pressure Adjustment, page 9
2. See Air Output, Air Intake, and Lint Fil-
ters, page 8
3. See Fuel Filter, page 9
4. See Nozzle Assembly, page 11
5. Make sure photocell boot is properly
seated in bracket
6. Clean photocell lens
7. Check electrical connections. See Wir-
ing Diagrams, page 13
8. Replace photocell
9. Replace ignition control assembly
POSSIBLE CAUSE
1. No power to heater
2. Thermostat setting is too low
3. Bad electrical connection between mo-
tor and ignition control assembly or ig-
nition control assembly and power cord
4. Binding pump rotor
5. Defective ignition control assembly
6. Defective motor
1. No fuel in tank
2. Pump pressure incorrect
3. Dirty fuel filter
4. Obstruction in nozzle
5. Water in fuel tank
6. Bad electrical connection between igni-
tor and ignition control assembly
7. Defective ignitor
8. Defective ignition control assembly
1. Pump pressure incorrect
2. Dirty air intake, air output, and/or lint
filter
3. Dirty fuel filter
4. Obstruction in nozzle
5. Photocell assembly not properly in-
stalled (not seeing the flame)
6. Dirty photocell lens
7. Bad electrical connection between pho-
tocell and ignition control assembly
8. Defective photocell
9. Defective ignition control assembly
FAULT CONDITION
Motor does not start five seconds after heater
is plugged in
Motor starts and runs but heater does not
ignite
Heater ignites but ignition control assembly
shuts heater off after a short period of time
WARNING: High voltage!
WARNING: High voltage!
WARNING: High voltage!
TROUBLESHOOTING
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UPPER SHELL REMOVAL
1. Remove screws along each side of heater using 5/16" nut-
driver. These screws attach upper and lower shells together.
See Figure 7 or 8.
2. Lift upper shell off.
3. Remove fan guard.
SERVICE PROCEDURES
WARNING: To avoid risk of burn and electrical
shock, never attempt to service heater while it is
plugged in, operating, or hot.
Screw
Upper Shell
Fan Guard
Figure 7 - Upper Shell Removal
(40/55T/70T Models Only)
Screw
Upper Shell
Fan Guard
Figure 8 - Upper Shell Removal
(115T/165T Models Only)
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 (see Figure 9).
1. Remove upper shell (see Figure 7 or 8).
2. Use 1/8" allen wrench to loosen setscrew which holds fan to
motor shaft.
3. Slip fan off motor shaft.
4. Clean fan using a 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 10).
7. Place setscrew on flat of shaft. Tighten setscrew firmly (40-50
inch-pounds/4.5-5.6 n-m).
8. Replace fan guard and upper shell.
Figure 9 - Fan, Motor Shaft,
and Setscrew Location
Flush
Fan
Setscrew
Motor Shaft
Motor
Figure 10 - Fan Cross Section
Setscrew
Motor Shaft
Fan
AIR OUTPUT, AIR INTAKE AND LINT FILTERS
1. Remove upper shell (see Figure 7 or 8).
2. Remove filter end cover screws using 5/16" nut-driver. See
Figure 11 or 12.
3. Remove filter end cover.
4. Replace air output and lint filters.
5. Wash or replace air intake filter (see Preventative Maintenance
Schedule, page 6).
6. Replace filter end cover.
7. Replace fan guard and upper shell.
IMPORTANT:
Do not oil filters.
Air Output
Filter
Lint Filter
Figure 11 - Air Output, Air Intake, and Lint Filters, 40/55T/70T Models
Figure 12 - Air Output, Air Intake, and Lint Filters, 115T/165T Models
Filter End Cover
Fan Guard
Air Output
Filter
Lint Filter
Air Intake
Filter
Filter End
Cover
Fan Guard
Air Intake Filter
SERVICE PROCEDURES
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PUMP PRESSURE ADJUSTMENT
1. Remove pressure gauge plug from filter end cover (see Figure 13).
2. Install accessory pressure gauge (part number HA1180).
3. Start heater (see Operation, page 5). 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 specifica-
tions correct pressure for each model (see Figure 14).
5. Remove pressure gauge. Replace pressure gauge plug in filter
end cover.
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 (see Figure 15 or 16).
4. Carefully pry bushing, fuel filter, and lower fuel line (115T/
165T models only) out of fuel tank (see Figure 16).
5. Wash fuel filter with clean fuel and replace in tank.
6. Attach upper fuel line to fuel filter neck.
7. Replace side cover.
SERVICE PROCEDURES
Continued
Relief
Valve
Pressure
Gauge
Plug
Figure 13 - Pressure Gauge Plug Removal
(40/55T/70T Models Shown)
Pump
Model Pressure
40 3.0 PSI
55T 3.4 PSI
70 T 4.7 PSI
115T 5.3 PSI
165T 5.6 PSI
Pressure
Gauge
Figure 14 - Adjusting Pump Pressure (40/55T/70T Models Shown)
Fuel Filter, Bushing,
and Lower Fuel Line
Upper Fuel Line
Side Cover
Fuel Filter
Side Cover
Figure 15 - Fuel Filter Removal, 40/55T/70T Models
Figure 16 - Fuel Filter Removal, 115T/165T Models
Upper Fuel
Line
SERVICE PROCEDURES
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Figure 21 - Removing Air and Fuel Line Hoses (165T Model Only)
Fuel Line
Hose
Combustion
Chamber
Nozzle/
Adapter
Assembly
Air Line
Hose
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 using a 1/4" nut driver (see Figure 18). Torque
8 to 15 in. lbs. 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
(see Figure 17).
12. Replace side cover (see Figures 15 and 16, page 9).
13. Connect and route fuel line hose and air line hose to nozzle
adapter assembly. See Fuel and Air Line Replacement and
Proper Routing, page 11.
14. Replace photocell in photocell bracket. Route wires as
shown in Figure 19, 20, or 21.
15. Replace fan (see Fan, page 8).
16. Replace fan guard and upper shell (see Upper Shell Removal,
page 8).
CAUTION: Do not bend or strike ignitor element.
Handle with care.
Figure 19 - Removing Air and
Fuel Line Hoses, (40/55T/70T
Models Only)
Fuel Line
Hose
Combustion
Chamber
Nozzle/
Adapter
Assembly
Air Line
Hose
Photocell
Bracket
Burner
Strap
Figure 20 - Removing Air and
Fuel Line Hoses, (115T Model
Only)
Photocell
Bracket
Burner
Strap
IGNITOR
1. Remove upper shell and fan guard (See Upper Shell Removal,
page 8).
2. Remove fan (see page 8).
3. Remove 4 side cover screws with a 5/16" nut driver. Remove
side cover (see Figures 15 and 16).
4. Disconnect ignitor wires (yellow) from ignition control as-
sembly (see Figure 17). Pull the ignitor wires up through
the hole in the lower shell.
5. Disconnect fuel line hose and air line hose. Remove photocell
from photocell bracket (see Figure 17).
6. Remove combustion chamber. Stand combustion chamber on
end with nozzle adapter bracket on top (see Figure 18).
7. Remove ignitor screw with a 1/4" nut driver. Carefully remove
ignitor from nozzle adapter bracket.
Figure 17 - Disconnecting Ignitor Wires from Ignition Control
Assembly
Combustion
Chamber
Photocell
Bracket
Photocell
Assembly
Air Line Hose
Fuel Line Hose
Ignitor Wire
Ignitor
Nozzle Adapter
Bracket
Ignition
Control
Assembly
Side Cover
(Yellow)
Photocell Bracket
Ignitor
Ignitor Screw/Washer
Assembly
Nozzle Adapter
Bracket
Ignitor Element
Combustion
Chamber
Nozzle Adapter
Bracket Opening
Figure 18 - Ignitor Replacement
SERVICE PROCEDURES
Continued
Combustion
Chamber
Burner
Strap
Photocell
Bracket
Fuel Line
Hose
Air Line
Hose
Nozzle/
Adapter
Assembly
SERVICE PROCEDURES
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SERVICE PROCEDURES
Continued
NOZZLE ASSEMBLY
1. Remove upper shell (see Upper Shell Removal, page 8).
2. Remove fan (see Fan, page 8).
3. Remove fuel and air line hoses from nozzle assembly (see Fig-
ure 19, 20, or 21, page 10).
4. Turn nozzle assembly 1/4 turn to left and pull toward motor to
remove (see Figure 22).
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 23.
7. Blow compressed air through face of nozzle. This will free
any dirt in nozzle area.
8. Inspect nozzle sleeve for damage.
9. Replace nozzle into nozzle adapter until nozzle seats. Tighten
1/3 turn more using 5/8" socket wrench (40-45 inch-pounds).
See Figure 23.
10. Attach nozzle assembly to burner strap (see Figure 22).
11. Attach fuel and airline hoses to nozzle adapter assembly. See
Fuel and Air Line Replacement and Proper Routing.
12. Replace fan (see Fan, page 8).
13. Replace fan guard and upper shell (see Upper Shell Removal,
page 8).
Nozzle
Assembly
Burner Strap
Air Line
Fitting
Fuel Line
Fitting
Nozzle
Nozzle
Sleeve
Nozzle Face
Figure 23 - Nozzle and Nozzle Adapter, All Models
Nozzle Adapter
Figure 22 - Removing Nozzle Assembly, All Models
FUEL AND AIR LINE REPLACEMENT AND
PROPER ROUTING
1. Remove upper shell (see Upper Shell Removal, page 8).
2. Remove side cover screws using 5/16" nut driver (see Figure 15
or 16, page 9).
3. Remove side cover.
4. Inspect fuel and air line hoses for cracks and/or holes. If fuel
line hose is damaged, disconnect from nozzle adapter (see Fig-
ure 19, 20, or 21, page 10) and from fuel filter (see Fuel Filter,
page 9). If air line hose is damaged, disconnect from nozzle
adapter (see Figure 19, 20, or 21, page 10) and from barb fitting
on pump end cover (see Figure 24).
5. Install new air and/or fuel line. Attach one end of air line hose to
barb fitting on pump end cover (see Figure 24) and the other
end to nozzle adapter (see Figure 19, 20, or 21, page 10). Attach
one end of fuel line hose to fuel filter (see Fuel Filter, page 9)
and the other end to nozzle adapter (see Figure 19, 20, or 21,
page 10).
Note:
Route hoses as shown in Figure 19, 20, or 21, page 10,
according to model. Hoses are not to touch photocell bracket.
6. Replace side cover.
7. Replace upper shell and fan guard (see Upper Shell Removal,
page 8).
Barb Fitting
Air Hose
Pump End Cover
Barb
Fitting
115T/165T
Models
40/55T/70T
Models
Figure 24 - Air Hose to Barb Fitting
SERVICE PROCEDURES
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IGNITION CONTROL ASSEMBLY
WARNING: High Voltage!
Figure 29 - Replacing Fuse
Fuse
Fuse
Cover
Fuse
Clips
1. Unplug heater.
2. Remove side cover screws (4) using 5/16" nut-driver to ex-
pose ignition control assembly (see Figure 15 or 16, page 9).
3. Remove fuse cover (see Figure 29).
4. Remove fuse from fuse clips (see Figure 29).
5. Replace fuse with fuse of the same type and rating (GMA-10).
Do not substitute a fuse with a higher current rating.
6. Replace fuse cover (see Figure 29).
7. Replace side cover (see Figure 15 or 16, page 9).
SERVICE PROCEDURES
Continued
PUMP ROTOR
(Procedure if Rotor is Binding)
1. Remove upper shell (see Upper Shell Removal, page 8).
2. Remove filter end cover screws using 5/16" nut-driver (see
Figure 25 or 26).
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
compressed air.
8. Install insert and rotor.
9. Check gap on rotor. Adjust to .003"/.004" (.076-.101 mm) if
needed (see Figure 27).
Note:
Rotate Rotor one full turn to insure the gap is .003"/.004"
(.076-.101 mm) at tightest position. Adjust if needed.
10. Install blades, pump plate, air filters, and filter end cover.
11. Replace fan guard and upper shell (see Upper Shell Removal,
page 8).
12. Adjust pump pressure (see Pump Pressure Adjustment, page 9).
Note:
If rotor is still binding, proceed as follows.
13. Perform steps 1 thru 6.
Figure 26 - Rotor Location, 115T/165T Models
Figure 25 - Rotor Location, 40/55T/70T Models
14. Place fine grade sandpaper (600 grit) on flat surface. Sand rotor
lightly in “figure 8” motion four times (see Figure 28).
15. Reinstall insert and rotor.
16. Perform steps 10 thru 12.
R
OTOR-Domestic
PFA/P 056B
Rotor
Air Output
Filter
Insert
Fan Guard
Filter End Cover
Air Intake Filter
Blade
Pump Plate
T
OR-Domestic PFA/P 059A
Insert
Rotor
Air Output
Filter
Blade
Filter End Cover
Air Intake Filter
Pump Plate
Fan
Guard
Gap Adjusting Screw
Rotor
Blade
.003"/.004"
(.076-.101 mm)
Gap Measured
With Feeler
Gauge
Gap Adjusting Screw
Figure 27 - Gap Adjusting Screw Locations
Sandpaper
Figure 28 - Sanding Rotor
SERVICE PROCEDURES
105536
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Power Plug
120V/60Hz
Blue
Blue
White
White
Photocell
Ignition Control Assembly
Green
Green
Red
Black
Black
Yellow
Yellow
Motor
Ignitor
Thermostat
Photocell
Photocell
Ignitor
Motor Return
AC Neutral (L2)
120V (L1)
Ignitor
Motor
Figure 31 - Wiring Diagram for 55T/70T/115T/165T Thermostat Models
WIRING DIAGRAMS
Power Plug
120V/60Hz
Blue
Blue
White
White
Photocell
Green
Green
Red
Black
Yellow
Yellow
Motor
Ignitor
Ignition Control Assembly
Photocell
Photocell
Ignitor
Motor Return
AC Neutral (L2)
120V (L1)
Ignitor
Motor
Figure 30 - Wiring Diagram for 40 Models
WIRING DIAGRAMS
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Model Size 40 55T 70T 115T 165T
Output Rating (Btu/Hr) 40,000 55,000 70,000 115,000 165,000
Fuel Use only kerosene, #1/#2 diesel/fuel oil, JET A or JP-8 fuels*
Fuel Tank Capacity
(U.S. Gal./Liters) 3/11.3 5/18.9 5/18.9 9/34 13.5/51
Fuel Consumption
(Gal. Per Hr/Liters Per Hr) .3/1.14 .44/1.67 .52/1.97 .85/3.00 1.2/4.54
Pump Pressure (psi) 3.0 3.4 4.7 5.3 5.6
Electric Requirements 120 V/60 HZ (Same All Models)
Amperage (Normal Run) 2.0 2.0 2.8 3.6 3.6
Motor RPM 1725 1725 3440 3440 3440
Hot Air Output (CFM) 170 180 360 490 575
Shipping Weight 32 35 35 53 63
(Approximate Pounds)
Heater Weight without Fuel 28 30 30 45 53
(Approximate Pounds)
* Use of #2 diesel & fuel oil will result in noticeable odor and could require additional fuel filter maintenance. Use in extreme cold
temperatures may require nontoxic anti-icer additives.
SPECIFICATIONS
SPECIFICATIONS
105536
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ACCESSORIES
Heater accessories and parts are available at your local dealer.
Should your dealer not stock or is unable to order a particular
accessory or part, please contact DESA Industries for more infor-
mation.
DESA Industries of Canada, Inc.
2220 Argentia Road
Unit #4
Mississauga, Ontario
L5N 2K7
Parts Department
1-905-826-8010
HEAVY DUTY WHEELS AND
HANDLE KIT - HA1202
For heavy duty applications. Makes your heater even more portable
and convenient. Fits 40/55T/70T models.
THERMOSTAT KIT - HA1210
For 40 model. Keeps your building at the temperature you select day
and night. Helps economize on fuel.
AIR GAUGE KIT - HA1180
For all models. Special tool to check pump pressure.
IGNITION CONTROL ASSEMBLY/
PHOTOCELL TESTER - HA1170
Special tool used to test the ignition control assembly and photocell.
ACCESSORIES
105536
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1
2
3
4
38
5
6
7
8
9
10
11
12
13
14
15
16
9-2
9-1
9-3
9-4
9-5
17
18
19
20
21
22
23
24
25
26
27
28
29
30
34
35
36
32
33
31
9-6
37
ILLUSTRATED
PARTS
BREAKDOWN
RC40
Motor and Pump
Assembly
12-11
12-18
12-17
12-16
12-15
12-14
12-13
12-12
12-10
12-1
12-3
12-4
12-5
12-6
12-7
12-8
12-9
12-2
ILLUSTRATED PARTS BREAKDOWN
RC40
105536
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PARTS LIST
RC40
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 descrip-
tion of the desired part.
KEY PART
NO. NUMBER DESCRIPTION QTY.
1 M51104-01 Handle 1
2 098511-67 Upper Shell
(Service Part Will Be Black) 1
3 M11084-29 Screw, #10-16 x 3/4" 2
4 079007-31 Screw, #10-16 x 1" 2
5 098512-58 Combustion Chamber 1
6 M10908-2 Screw, #6-32 x 3/8" 2
7 103154-03 Photocell Bracket 1
8 M16656-24 Photocell Assembly 1
9 Burner Head Assembly
9-1 HA3006 Nozzle Assembly 1
9-2 102548-03 Ignitor Kit 1
9-3 104056-01 Nozzle Adapter 1
9-4 102336-01 Nozzle Adapter Bracket 1
9-5 M10908-75 Screw, Hex Head, Tapping 1
9-6 103347-01 Belleville Washer 1
10 M11084-26 Screw, #10-16 x 3/8" 2
11 103684-01 Fan 1
12 Motor and Pump Assembly
12-1 102001-01 Motor 1
12-2 079975-02 Pump Body 1
12-3 M22009** Insert 1
12-4 M22456-1** Rotor 1
12-5 M29608 Pump End Cover 1
12-6 M29632 Lint Filter 1
12-7 M29633 Intake Filter 1
12-8 M29609 Filter End Cover 1
12-9 M12461-31 Screw, #10-32 x 1" 3
12-10 M27694 Adjusting Screw 1
12-11 M10993-1 Pressure Relief Spring 1
12-12 M22997 Plug 1
12-13 M8940 Steel Ball, 1/4" Diameter 1
12-14 M29612-01 Output Filter 1
12-15 M12461-31 Screw, #10-32 x 1" 6
12-16 103676-01 Nylon Elbow, 90° 1
12-17 M8643** Blade 4
KEY PART
NO. NUMBER DESCRIPTION QTY.
Not available as an assembly
** Included in Rotor Kit (Part No. HA3004)
Included in Filter Kit (Part No. HA3014)
Included in Pump Adjustment Kit (Part No. HA3020)
12-18 FHPF3-5C Screw 2
13 M51105-01 Fan Guard 1
14 098219-38 Power Cord 1
15 M11143-1 Strain Relief Bushing 1
16 NTC-4C Hex Lock Nut, 1/4-20 2
17 M11084-26 Screw, #10-16 x 3/8" 4
18 M50631 Rubber Bumper 2
19 097461-03AA Side Cover 1
20 101205-01 Motor Bracket 1
21 M30865-02 Bushing 2
22 M11271-8 Clip Nut 6
23 M50104-02 Bushing 1
24 M11084-26 Screw, #10-16 x 3/8" 6
25 097211-02 Screw, #8-18 x 1/2" 1
26 098511-234 Lower Shell
(Service Part will be Black) 1
27 M50814-06 Rubber Airline 1
28 079973-01 Fuel Line 1
29 M50876-04 Fuel Filter with bushing 1
30 M10990-3 Rubber Bushing 1
31 101695-01 Button Plug 1
32 102349-01 PCB Support 5
33 104068-02 Ignition Control Assembly 1
34 097702-01 Fuel Cap (Includes Gasket) 1
35 108088-01 Fuel Tank 1
36 M51108-01 Shell Heat-Shield 1
37 100647-01 Screw, #10-16 x 1/2” 4
38 079532-01 Guard, Nose Cone 1
PARTS AVAILABLE - NOT SHOWN
103814-01 Wire Tie 1
105550-01 Decal, Warning/Maintenance 1
105550-02 Decal, Warning/Maintenance 1
103997-21 Decal, Model Data (RC40) 1
097204-19 Tradename Decal (RC40) 2
PARTS LIST
RC40
105536
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Motor and Pump
Assembly
12-11
12-18
12-17
12-16
12-15
12-14
12-13
12-12
12-10
12-1
12-2
12-3
12-4
12-5
12-6
12-7
12-8
12-9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
34
35
36
32
33
31
39
38
37
9-2
9-1
9-3
9-4
9-5
9-6
41
40
ILLUSTRATED
PARTS
BREAKDOWN
RC55T, RC70T
ILLUSTRATED PARTS BREAKDOWN
RC55T, RC70T
105536
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PARTS LIST
RC55T, RC70T
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 descrip-
tion of the desired part.
KEY PART
NO. NUMBER DESCRIPTION QTY.
1 M51104-01 Handle 1
2 098511-67 Upper Shell
(Service Part Will Be Black) 1
3 M11084-29 Screw, #10-16 x 3/4" 2
4 079007-31 Screw, #10-16 x 1" 2
5 098512-50 Combustion Chamber (55T) 1
098512-51 Combustion Chamber (70T) 1
6 M10908-2 Screw, #6-32 x 3/8" 2
7 103154-03 Photocell Bracket 1
8 M16656-24 Photocell Assembly 1
9 Burner Head Assembly
9-1 HA3024 Nozzle Assembly (55T) 1
HA3026 Nozzle Assembly (70T) 1
9-2 102548-03 Ignitor Kit 1
9-3 104056-01 Nozzle Adapter 1
9-4 102336-02 Nozzle Adapter Bracket (55T) 1
102336-01 Nozzle Adapter Bracket (70T) 1
9-5 M10908-75 Screw, Hex Head, Tapping 1
9-6 103347-01 Belleville Washer 1
10 M11084-26 Screw, #10-16 x 3/8" 2
11 103684-01 Fan (55T) 1
M29678 Fan (70T) 1
12 Motor and Pump Assembly
12-1 102001-01 Motor (55T) 1
102001-20 Motor (70T) 1
12-2 079975-03 Pump Body (55T) 1
079975-02 Pump Body (70T) 1
12-3 M22009**, *** Insert 1
12-4 M22456-2** Rotor (55T) 1
M22456-1*** Rotor (70T) 1
12-5 M29608 Pump End Cover 1
12-6 M29632 Lint Filter 1
12-7 M29633 Intake Filter 1
12-8 M29609 Filter End Cover 1
12-9 M12461-31 Screw, #10-32 x 1" 3
12-10 M27694 Adjusting Screw 1
12-11 M10993-1 Pressure Relief Spring 1
12-12 M22997 Plug 1
12-13 M8940 Steel Ball, 1/4" Diameter 1
12-14 M29612-01 Output Filter 1
12-15 M12461-32 Screw, #10-32 x 1
1
/8" (55T) 6
M12461-31 Screw, #10-32 x 1" (70T) 6
12-16 103676-01 Nylon Elbow, 90° 1
12-17 M8643-2** Blade (55T) 4
M8643*** Blade (70T) 4
KEY PART
NO. NUMBER DESCRIPTION QTY.
Not available as an assembly Included in Filter Kit (Part No. HA3014)
** Included in Rotor Kit (Part No. HA3005) Included in Pump Adjustment Kit (Part No. HA3020)
*** Included in Rotor Kit (Part No. HA3004)
12-18 FHPF3-6C Screw, #10-32 x 3/4" (55T) 2
FHPF3-5C Screw, #10-32 x 5/8" (70T) 2
13 M51105-01 Fan Guard 1
14 098219-38 Power Cord 1
15 M11143-1 Strain Relief Bushing 1
16 NTC-4C Hex Lock Nut, 1/4-20 2
17 M11084-26 Screw, #10-16 x 3/8" 4
18 M50631 Rubber Bumper 2
19 097461-03AA Side Cover 1
20 101205-01 Motor Bracket 1
21 M30865-02 Bushing 2
22 M11271-8 Clip Nut 6
23 M50104-02 Bushing 1
24 M11084-26 Screw, #10-16 x 3/8" 6
25 097211-02 Screw, #8-18 x 1/2" 1
26 098511-234 Lower Shell
(Service Part will be Black) 1
27 M50814-06 Rubber Airline 1
28 079973-01 Fuel Line 1
29 M50876-05 Fuel Filter (with bushing) 1
30 M10990-3 Rubber Bushing 1
31 101695-01 Button Plug 1
32 102349-01 PCB Support 5
33 104068-02 Ignition Control Assembly 1
34 097702-01 Fuel Cap (Includes Gasket) 1
35 108088-03 Fuel Tank 1
36 M51108-01 Shell Heat-Shield 1
37 097657-03 Thermostat 1
38 M10908-1 Screw, #6-32 x 1/4" 2
39 104905-01 Thermostat Knob 1
40 100647-01 Screw, #10-16 x 1/2" 4
41 079532-01 Guard, Nose Cone 1
PARTS AVAILABLE - NOT SHOWN
097204-18 Tradename Decal (RC55T) 2
097204-14 Tradename Decal (RC70T) 2
100621-09 Thermostat Decal 1
103814-01
Wire Tie
1
M9900-170 Wire Assembly 1
105550-01 Decal, Warning/Maintenance 1
105550-02 Decal, Warning/Maintenance 1
103997-22 Decal, Model Data (RC55T) 1
103997-23 Decal, Model Data (RC70T) 1
PARTS LIST
RC55T, RC70T
105536
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1
2
3
23
19
9
10
16
11
12
15
25
26
27
24
28
29
20
22
21
30
31
17
14
14
33
34
35
36
32
26
13
18
5
4
6
7
8
7-2
7-1
7-5
7-4
7-3
39
38
37
41
45
44
46
42
43
40
42
7-6
ILLUSTRATED
PARTS
BREAKDOWN
RC115T, RC165T
Motor and Pump
Assembly
10-11
10-17
10-16
10-15
10-13
10-14
10-13
10-12
10-10
10-1
10-2
10-4
10-5
10-6
10-7
10-8
10-9
10-3
ILLUSTRATED PARTS BREAKDOWN
RC115T, RC165T
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