Desa BC70ET, RC115DT, RC165DT, BC165DT, BC55CT User Manual

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CANADIAN PORTABLE FORCED AIR HEATERS
OWNER’S MANUAL
MODELS: BC40, RC40, BC55CT, RC55CT, UKC55CT, BC70ET,
RC70ET, UKC70ET, BC115DT, RC115DT, UKC115DT, BC165DT,
RC165DT AND UKC165DT
H.S.I. SERIES
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.
TABLE OF CONTENTS
Safety Information ............................................... 2
Unpacking ........................................................... 3
Product Identification ...........................................
Fuels .................................................................... 4
Ventilation ............................................................
Theory of Operation ............................................ 4
Assembly ............................................................. 5
Operation ............................................................. 6
Operation With Portable Generator ..................... 7
Fill In For Your Records
Model No. ___________________________ (Located on side panel)
Serial No. ____________________________ (Located on fuel tank)
Date of Purchase: _____________________
Save this manual for future reference.
For more information, visit www.desatech.com
3
4
Storing, Transporting or Shipping ........................
Preventative Maintenance Schedule ................... 8
Troubleshooting ...................................................
Service Procedures ........................................... 10
Specifications ....................................................
Illustrated Parts Breakdown and Parts List ....... 16
Wiring Diagrams ................................................ 25
Accessories ....................................................... 26
Warranty and Repair Service ..............Back Cover
7
8
15

SAFETY INFORMATION

WARNING: This product contains and/or generates chemicals known to the State of California to cause cancer or birth defects or other reproduc­tive harm.
IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, operate or service this heater. Improper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning.
DANGER: Carbon monoxide poisoning may lead to death!
Carbon Monoxide Poisoning: Early signs of
carbon monoxide poisoning resemble the flu, with headaches, dizziness, and/or nausea. If you have these signs, the heater may not be working properly. Get fresh air at once! Have heater serviced. Some people are more affected by carbon monoxide than others. These include pregnant women, persons with heart or lung disease or anemia, those under the influence of alcohol, and those at high altitudes.
Make certain you read and understand all warn ings. Keep this manual for reference. It is your guide to safe and proper operation of this heater.
1. 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.
2. Fueling a) Personnel involved with fueling shall be
qualified and thoroughly familiar with the manufacturerʼs instructions and applicable regulations regarding the safe fueling of heating units.
b) Only the type of fuel specified on the
heaterʼs 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 dayʼs 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 (762 cm) 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 penetrations do not permit fuel to drip onto or be ignited by a fire at lower elevation.
h) Fuel storage shall be in accordance with the
authority having jurisdiction.
3. Use only the electrical voltage and frequency specified on model plate.
4. Heater must be grounded. Use only a properly grounded three-wire extension cord. Plug into grounded outlet only.
5. Use only in areas free of flammable vapors or high dust content.
6. Minimum clearance from any combustible materials: 8 feet (244 cm) from hot air outlet; 4 feet (122 cm) from top; and 4 feet (122 cm) from sides and inlet.
7. Locate heater on a stable and level surface while hot or operating or a fire may occur.
8. Use only in well-vented areas. Before using heater, provide at least a three-square-foot
­(2800 square cm) opening of fresh, outside air
for each 100,000 Btu/Hr (30 kw) of rating.
9. Keep children and animals away from heater at all times.
10. Never start heater when combustion chamber is hot or if fuel has accumulated in combustion chamber.
11. When used with thermostat, heater may start at anytime.
12. When heater is moved or stored, it must be in a level position or fuel spillage may occur.
13. Use heater only in accordance with local ordinances and codes.
14. Never use gasoline, crankcase drainings, naphtha, paint thinners, alcohol or other highly flammable fuels.
15. Never use heater where gasoline, paint thinner or other highly flammable vapors are present.
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SAFETY INFORMATION
Continued
16. Never use heater in living or sleeping areas.
17. Never leave a heater plugged in without adult supervision if children or animals are likely to be present.
18. Never move, handle, refuel or service a hot, operating or plugged-in heater.
19. Never attach duct work to front or rear of heater.
20. Never attach heater to external fuel tank.
21. 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 (304.8 cm). It is further recommended that these enclosure materials be of a fire retardant nature. These enclosure materials shall be securely fastened to prevent them from igniting or from upsetting the heater due to wind action.
22. Unplug heater when not in use.
23. Never block air inlet (rear) or air outlet (front) of heater.

UNPACKING

1. Remove all packing items applied to heater for shipment.
2. Remove all items from carton.
3. Check items for any shipping damage. If heater is damaged, promptly inform dealer where you bought heater.
PRODUCT
IDENTIFICATION
Hot Air Outlet
Fan Guard
Thermostat Knob
Hot Air Outlet
Fuel Tank
Side Cover
Ignition Control Assembly (On Inside of Side Cover)
Hot Air Outlet
Fuel Tank
Fuel Cap/ Gauge
Side Cover
Ignition Control Assembly (On Inside of Side Cover)
Hot Air Outlet
Fuel Tank
ON/OFF Switch with Light
Figure 2 - 55/70 Model
Figure 3 - 115 Model
Fuel Cap/ Gauge
Fan Guard
Fuel Cap/Gauge
Thermostat Knob
ON/OFF Switch with Light
Thermostat Knob
Fan Guard
Thermostat Knob
Air Filter End Cover
Fan Guard
Fuel Tank
Side Cover
Ignition Control Assembly (On Inside of Side Cover)
Figure 1 - 40 Model
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Fuel Cap
Air Filter End Cover
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Side Cover
Ignition Control Assembly (On Inside of Side Cover)
Figure 4 - 165 Model
ON/OFF Switch with Light

FUELS

VENTILATION

WARNING: Use only kero­sene, #1/#2 diesel/fuel oil, JET A or JP-8 fuels to avoid risk of fire or explosion. Never use gasoline, oil drained from crankcases, naph­tha, paint thinners, alcohol or other highly flammable 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. Foreign matter such as rust, dirt or water will cause the ignition control assembly to shut down heater. Foreign matter may also require heaterʼs fuel system to be frequently cleaned.
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 requirements must be followed to avoid risks as­sociated with carbon monoxide poisoning. Make certain these requirements are met prior to operating heater.
Example: A 200,000 Btu/Hr (58.6 kw) heater requires one of the following:
• a two-car garage door [16 feet (4.88 meter) opening] raised 5 inches (12.7 cm)
• a single-car garage door [9 feet (2.74 meter) opening] raised 8 inches (20.3 cm)
• two, 30 inch (76.2 cm) windows raised 15 inches (38.1 cm)

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 combustion chamber.
The Flame-Out Control System: This system causes the heater to shut down if the flame goes out.
Fan
Motor
Combustion Chamber
Ignitor
Air Pump
Air Intake Filter
Clean Heated Air Out
Fuel Tank
Nozzle
Air For Fuel System
Figure 5 - Cross Section Operational View
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Fuel Filter
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Air Line To Burner
Air For Combustion And Heating
Ignition Control Assembly
Cool Air In
Air Output Filter
Fuel

ASSEMBLY

(FOR 40, 55 AND 70 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.
Nose Cone Guard
Screw Hot Air Outlet
Upper Shell Flange
Figure 6 - Nose Cone Guard Assembly,
40/55/70 Models Only
(FOR 115 AND 165 MODELS ONLY)
These models are furnished with wheels and a handle. Some models are furnished with a second 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 Slide axle through wheel support frame. Install
1. wheel spacers if provided. Install wheels on axle.
IMPORTANT: When installing wheels, point
extended hub of wheels toward wheel support frame (see Figure 7).
2. Place cap nuts on axle ends. Gently tap with hammer to secure.
3. Place heater on wheel support frame. Line up holes on fuel tank flange with holes on wheel support frame. Be sure wheels are mounted under the air inlet of heater.
4. Place handle(s) on top of fuel tank flange. In sert screws through handle(s), fuel tank flange, and wheel support frame. Attach nut finger tight after each screw is inserted. If only one handle is provided, be sure to mount handle over outlet end of heater.
5. After all screws are inserted, tighten nuts firmly.
Handle
Screw
Hot Air Outlet
Fuel Tank Flange
Cord Cleat with Bolts and Nuts (If provided)
Handle (If provided)
Air Inlet
-
Wheel Support Frame
Nut
Extended
Axle
Cap Nut
Figure 7 - Wheel and Handle Assembly,
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Wheel Spacer (If Provided)
Wheel
115/165 Models Only
Hub

OPERATION

IMPORTANT: Review and under­stand the warnings in the Safety Information section, page 2. They are needed to safely oper­ate this heater. Follow all local ordinances and codes when using this heater.
TO START HEATER
1. Follow all ventilation and safety information.
2. Locate heater to provide maximum circulation of the heated air. Follow all location require ments noted in Safety Information, page 2.
3. Fill fuel tank with kerosene, #1#2 diesel/fuel oil, JET A or JP-8 fuel.
4. Attach fuel cap.
5. For thermostat models, turn thermostat knob clockwise to the high position.
6. Plug heaterʼs 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 mm2) rated cord
11 to 100 feet (3.3 to 30.5 meters) long, use
16 AWG (1.0 mm2) rated cord
101 to 200 feet (30.8 to 61 meters) long, use
14 AWG (1.5 mm2) rated cord
7. Plug extension cord into standard 120 volt/60 hertz, 3-prong grounded outlet. Note: For heater without ON/OFF switch, ignitor will preheat for five seconds, then heater will start.
Note: For heater with ON/OFF switch, push
switch to ON(|) position and heater should start in 5 seconds. If heater does not start, see Troubleshooting, page 9.
8. For thermostat models, adjust thermostat knob to the desired setting. Note: A cold heater may affect the thermostat setting. This thermostat is a general-heating control. It is not intended for precise temperature control. Adjust thermostat until heater cycles at the desired setting.
TO STOP HEATER
Without ON/OFF Switch
Unplug extension cord from outlet.
With ON/OFF Switch
Push ON/OFF switch to OFF (O) position. Unplug heater when not in use.
TO RESTART HEATER
Without ON/OFF Switch
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
-
With ON/OFF Switch
1. Push ON/OFF switch to OFF (O) position and wait 10 seconds (2 minutes if heater has been running).
2. Repeat steps under
ON/OFF Switch with Light
Figure 8 - ON/OFF Switch, 55/70 Models
ON/OFF Switch with Light
Figure 9 - ON/OFF Switch, 115/165
To Start Heater.
Models
.
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FUEL
F
OPERATION WITH
PORTABLE GENERATOR
WARNING: Before operating heater or any appliance from a portable generator, verify that generator has been properly con­nected to earth ground. Improper grounding or failure to ground generator can result in electro­cution if a ground fault occurs. Refer to owner’s manual supplied by generator manufacturer for proper grounding procedures.
The operating voltage range of the heater is 108 to 132 Volts (120 Volts +/- 10%). Prior to plugging heater into generator the output voltage should be verified (if generator is equipped with the au­tomatic idle feature, the output voltage should be measured with the generator running at full speed). If the voltage does not measure in this range the heater should not be plugged into the generator.
Operation, page 6, for starting, stopping,
Refer to and resetting heater procedures.
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, re move 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 dis pose 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:
months for use during next heating season. Using old fuel could damage heater.
Do not store kerosene over summer
-
-
Alternator
Figure 10 - Typical Generator Grounding
Method (Generator construction may
vary from that shown)
116170-01A 7
Ground Lug
Copper or Brass Grounding Point
Ground Wire (#10 AWG - Stranded­Copper)
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PREVENTATIVE MAINTENANCE SCHEDULE

WARNING: Never service heater while it is plugged in, operating
or hot. Severe burns and electrical shock can occur.
Item
Fuel tank
Air output and lint filters
Air intake filter
Fuel filter
Ignitor
Fan blades
Motor
How Often
Flush every 150-200 hours of operation or as needed
Replace every 500 hours of operation or once a year
Wash and dry with soap and water every 500 hours of operation or as needed
Clean twice a heating season or as needed
No maintenance required
Clean every season or as needed
Not required/permanently lubricated
How To
See Storing, Transporting, or Shipping, page 7
See Air Output, Air Intake, and Lint Filters, page 10
See Air Output, Air Intake, and Lint Filters, page 10
See Fuel Filter, page 11
See Fan, page 10

TROUBLESHOOTING

WARNING: Never service heater while it is plugged in, operating
or hot. Severe burns and electrical shock can occur.
FAULT CONDITION
Motor does not start five seconds after heater is plugged in
POSSIBLE CAUSE
1. No power to heater
2. ON/OFF switch not in the ON(|) position
3. Thermostat setting is too low
REMEDY
1. Check circuit breaker in elec­trical panel
2. Verify the ON/OFF switch is in ON (|) position and light is on
3. Turn thermostat knob to a higher setting
WARNING: High voltage!
4.
Bad electrical connection be­tween motor and ignition con trol assembly or ignition control assembly and power cord
5. Binding pump rotor
6. Defective ignition control as sembly
7. Defective motor
8. Blown fuse or ignitor control assembly
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4. Check all electrical connec
-
tions. See Wiring Diagrams, page 25
5. If fan does not turn freely, see
Pump Rotor,
-
6 Replace ignition control as
sembly
7. Replace motor
8. See Ignition Control Assembly, page 15
page 14
-
-
FAULT CONDITION
Motor starts and runs but heater does not ignite
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
1. No fuel in tank
2. Pump pressure incorrect
3. Dirty fuel filter
4. Obstruction in nozzle
5. Water in fuel tank
WARNING: High voltage!
REMEDY
1. Fill tank with kerosene
2. See Pump Pressure Adjust ment, page 11
3. See Fuel Filter, page 11
4.
See Nozzle Assembly, page 13
5. Drain and flush fuel tank with clean kerosene. See Storing, Tran sporting or Shipping, page 7
-
Heater ignites but ignition con trol assembly shuts heater off after a short period of time
6. Bad electrical connection between ignitor 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 installed (not seeing the flame)
6. Dirty photocell lens
WARNING: High voltage!
7. Bad electrical connection between photocell and ignition control assembly
8. Defective photocell
9. Defective ignition control as sembly
6.
Check electrical connections. See Wiring Diagrams, page 25
7. Replace ignitor, see page 12
8. Replace ignition control as sembly
1. See Pump Pressure Adjust ment, page 11
2. See Air Output, Air Intake, and Lint Filters, page 10
3. See Fuel Filter, page 11
4.
See Nozzle Assembly, page 13
5. Make sure photocell boot is properly seated in bracket
6. Clean photocell lens
7.
Check electrical connections. See Wiring Diagrams, page 25
8. Replace photocell
9. Replace ignition control as
­sembly
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SERVICE PROCEDURES

WARNING: To avoid risk of burn and electrical shock, never attempt to service heater while it is plugged in, operating or hot.
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 11 or 12.
2. Lift upper shell off.
3. Remove fan guard.
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 14).
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.
Setscrew
Fan
Screw
Figure 11 - Upper Shell Removal,
40/55/70 Models Only
Upper Shell
Screw
Upper Shell
Fan Guard
Motor Shaft
Figure 13 - Fan, Motor Shaft, and
Setscrew Location
Motor
Setscrew
Motor Shaft
Figure 14 - Fan Cross Section
Fan
Flush
AIR OUTPUT, AIR INTAKE AND LINT FILTERS
1. Remove upper shell (see Figure 11 or 12).
2.
Remove filter end cover screws using 5/16" nut-
Fan Guard
Figure 12 - Upper Shell Removal,
115/165 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 13).
1. Remove upper shell (see Figure 11 or 12).
2. Use 1/8" allen wrench to loosen setscrew which holds fan to motor shaft.
3. Slip fan off motor shaft.
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driver (see Figure 15 or Figure 16, page 11).
3. Remove filter end cover.
4. Replace air output and lint filters.
5. Wash or replace air intake filter (see Preventa tive Maintenance Schedule, page 8).
Air Intake Filter
Filter End Cover
Lint Filter
Figure 15 - Air Output, Air Intake, and
Air Output Filter
Lint Filters, 40/55/70 Models Only
-
SERVICE PROCEDURES
Continued
6. Replace filter end cover.
7. Replace fan guard and upper shell. IMPORTANT: Do not oil filters.
Air Intake Filter
Filter End Cover
Lint Filter
Air Output Filter
Figure 16 - Air Output, Air Intake, and
Lint Filters, 115/165 Models Only
PUMP PRESSURE ADJUSTMENT
1. Remove pressure gauge plug from filter end cover (see Figure 17).
2. Install accessory pressure gauge (part number HA1180).
3. Start heater (see 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 correct pressure for each model (see Figure 18).
5. Remove pressure gauge. Replace pressure gauge plug in filter end cover.
Pressure Gauge Plug
Operation, page 6). Allow
Relief Valve
FUEL FILTER
1. Remove side cover screws using 5/16" nut­driver.
2. Remove side cover.
3. Pull upper fuel line off fuel filter neck (see Figure 19 or 20).
4. Carefully pry bushing, fuel filter, and lower fuel line (115/165 Models only) out of fuel tank (see Figure 20).
5. Wash fuel filter with clean fuel and replace in tank.
6. Attach upper fuel line to fuel filter neck.
7. Replace side cover.
Fuel Filter and Bushing
Upper Fuel Line
Side Cover
Figure 19 - Fuel Filter Removal,
40/55/70 Models
Fuel Filter, Bushing, and Lower Fuel Line
Side
Figure 17 - Pressure Gauge Plug
Removal (70 Model Shown)
Pump
Model Pressure
40 3.0 PSI 55 3.4 PSI 70 4.7 PSI 115 5.1 PSI 165 5.6 PSI
Figure 18 - Adjusting Pump Pressure
116170-01A 11
Pressure Gauge
(70 Model Shown)
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Cover
Upper Fuel Line
Figure 20 - Fuel Filter Removal,
115/165 Models
SERVICE PROCEDURES
Continued
IGNITOR
1. Remove upper shell and fan guard (See Upper Shell Removal, page 10).
2. Remove fan (see page 10).
3. Remove 4 side cover screws with a 5/16" nut driver. Remove side cover (see Figures 19 or 20, page 11).
4. Disconnect ignitor wires from ignition control assembly (see Figure 21). 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 21).
6. Remove combustion chamber. Stand com bustion chamber on end with nozzle adapter bracket on top (see Figure 22).
7. Remove ignitor screw with a 1/4" nut driver. Carefully remove ignitor from nozzle adapter bracket.
Combustion Chamber
Air Line Hose
Fuel Line Hose
Photocell Bracket
Photocell Assembly
Side Cover
-
Figure 21 - Disconnecting Ignitor Wires
from Ignition Control Assembly
Ignitor Screw/ Washer Assembly
Nozzle Adapter Bracket
Ignitor
Ignitor Wire
Ignition Control Assembly
Ignitor
CAUTION: Do not bend or strike ignitor element. Handle with care.
8. Carefully remove replacement ignitor from 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 23). Torque .90 to 1.69 N-m (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 22).
12. Replace side cover (see Figures 19 or 20, page 11).
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 14.
14. Replace photocell in photocell bracket. Route wires as shown in either (see Figure 23 or Figure 24, page 13).
15. Replace fan (see page 10).
16.
Replace fan guard and upper shell (see page 10).
Ignitor
Photocell Bracket
Combustion Chamber
Combustion Chamber
Photocell
,
Bracket
Element
Nozzle Adapter Bracket Opening
Figure 22 - Ignitor Replacement
Nozzle Adapter Bracket
Air Line Hose
Figure 23 - Removing Air and Fuel Line
Hoses (40/55/70 Models Only)
Fuel Line Hose
Nozzle Adapter Bracket
Nozzle/ Adapter Assembly
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SERVICE PROCEDURES
Continued
Combustion Chamber
Nozzle Adapter Bracket
Air Line Hose
Fuel Line Hose
Figure 24 - Removing Air and Fuel Line
Hoses (115/165 Models Only)
NOZZLE ASSEMBLY
1. Remove upper shell (see Upper Shell Re­moval, page 10).
2. Remove fan (see
3.
Remove fuel and air line hoses from nozzle as­sembly (see Figure 23, page 12 or Figure 24).
4. Turn nozzle assembly 1/4 turn to left and pull toward motor to remove (see Figure 25).
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 26).
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 4.5 to 5.1 N-m (40 to 45 in-lbs). See Figure 26.
10. Attach nozzle assembly to burner strap (see Figure 25).
Fan, page 10).
Nozzle/ Adapter Assembly
Photocell Bracket
11. Attach fuel and airline hoses to nozzle as­sembly. See Fuel and Air Line Replacement and Proper Routing, page 14.
12. Replace fan (see
13. Replace fan guard and upper shell (see Upper Shell Removal, page 10).
Combustion Chamber
Figure 25 - Removing Nozzle/Adapter
Nozzle Face
Nozzle
Nozzle Adapter
Figure 26 - Nozzle and Nozzle Adapter
Fan, page 10).
Assembly
Nozzle Sleeve
Air Line Fitting
Fuel Line Fitting
Nozzle/ Adapter Assembly
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SERVICE PROCEDURES
Continued
FUEL AND AIR LINE REPLACEMENT AND PROPER ROUTING
1. Remove upper shell (see Upper Shell Re­moval, page 10).
2. Remove side cover screws using 5/16" nut driver (see Figure 19 or 20, page 11).
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 Figure 23 or 24) and from fuel filter (see Fuel Filter, page 11). If air line hose is damaged, disconnect from nozzle adapter (see Figure 23, page 12 or Figure 24, page 13) and from barb fitting on pump end cover (see Figure 27).
5. Install new air and/or fuel line. Attach one end of air line hose to barb fitting on pump end cover (see Figure 27) and the other end to nozzle adapter (see Figure 23, page 12 or Figure 24, page 13). Attach one end of fuel line hose to fuel filter (see Fuel Filter, page
11) and the other end to nozzle adapter (see Figure 23, page 12 or Figure 24, page 13).
Note: Route hoses as shown in Figure 23, page
12 or Figure 24, page 13, according to model. Hoses are not to touch photocell bracket.
6. Replace side cover.
7. Replace upper shell and fan guard (see
Shell Removal, page 10).
Upper
PUMP ROTOR
(Procedure if Rotor is Binding)
1. Remove upper shell (see Upper Shell Re moval, page 10).
2. Remove filter end cover screws using 5/16" nut driver (see Figure 28 or 29).
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 (see Figure 28 or 29).
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 .076/.101 mm (.003"/.004") if needed (see Figure 30, page 15).
Note: Rotate rotor one full turn to ensure the
gap is .076/.101 mm (.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 (see Shell Removal, page 10).
12. Adjust pump pressure (see Pump Pressure Adjustment, page 11).
Blade
Pump Plate
Upper
Air Intake Filter
Filter End Cover
-
Pump End Cover
Barb Fitting
Air Hose
Figure 27 - Air Hose to Barb Fitting
14 116170-01A
115/165 Models40/55/70 Models
Barb Fitting
Insert
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Insert
Rotor
Air Output Filter
Figure 28 - Rotor Location, 40/55/70
Rotor
Air Output Filter
Figure 29 - Rotor Location, 115/165
Models
Blade
Pump Plate
Air Intake Filter
Filter End Cover
Models
SERVICE PROCEDURES
Continued
Note: If rotor is still binding, proceed as follows.
13. Perform steps 1 through 6.
14. Place fine grade sandpaper (600 grit) on flat surface. Sand rotor lightly in “figure 8” motion four times (see Figure 31).
15. Reinstall insert and rotor.
16. Perform steps 10 through 12.
Blade
Gap Adjusting Screw
.003"/.004" (.076-.101 mm) Gap Measured With Feeler Gauge
IGNITION CONTROL ASSEMBLY
WARNING: High voltage!
1. Unplug heater.
2. Remove side cover screws (4) using 5/16" nut­driver to expose ignition control assembly.
3. Remove fuse cover (see Figure 32). Remove fuse from fuse clips (see Figure 32).
4.
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 32).
7. Replace side cover (see Figures 19 or 20, page 11).
Fuse Clips
Fuse Cover
Rotor
Gap Adjusting Screw
Figure 30 - Gap Adjusting Screw
Locations
Sandpaper
Figure 31 - Sanding Rotor
Figure 32 - Replacing Fuse
Fuse

SPECIFICATIONS

Model Size 40 55 70 115 165
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 5.1 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 32/14.5 35/15.9 35/15.9 54/24.5 65/29.5
(Approximate lbs./kg) Heater Weight without Fuel 28/12.2 30/14 30/14 46/21 55/25
(Approximate lbs./kg) * Use of #2 diesel & fuel oil will result in noticeable odor and could require additional fuel filter main
tenance. Use in extreme cold temperatures may require nontoxic anti-icer additives.
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116170-01A 15
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ILLUSTRATED PARTS BREAKDOWN

1
2
3
4
31
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
9-6
37
MODELS BC40 AND RC40
16 116170-01A
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PARTS LIST
MODELS BC40 AND 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 description 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 108631-01 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
(see page 22)
10 M11084-26 Screw, #10-16 x 3/8" 2 11 103684-01 Fan 1 12
(see page 22)
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 097461-09 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 M10908-14 Screw, #8-32 x 3/8" 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 079532-01 Guard, Nose Cone 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 M15823-27 Screw, #10-16 x 1/2" 4
103814-01 Wire Tie 1 105550-01 Warning/Maintenance Decal 1 105550-02 Warning/Maintenance Decal 1
Burner Head Assembly 1
Motor 1
PARTS AVAILABLE - NOT SHOWN
116170-01A 17
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