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

CANADIAN PORTABLE FORCED AIR HEATERS

OWNER’S MANUAL

MODELS: BC40, RC40, BC55CT, RC55CT, UKC55CT, BC70ET, RC70ET, UKC70ET, BC115DT, RC115DT, UKC115DT, BC165DT, RC165DT AND UKC165DT

HEATER SIZES: 40/55/70/115/165,000 BTU/HR MODELS

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...........................................	3
Fuels....................................................................	4
Ventilation............................................................	4
Theory of Operation ............................................	4
Assembly.............................................................	5
Operation.............................................................	6
Operation With Portable Generator.....................	7

Storing, Transporting or Shipping........................		7
Preventative Maintenance Schedule...................		8
Troubleshooting...................................................		8
Service Procedures...........................................		10
Specifications ....................................................		15
Illustrated Parts Breakdown and Parts List .......		16
Wiring Diagrams................................................		25
Accessories.......................................................		26
Warranty and Repair Service ..............	Back Cover

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

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 manualcarefullyandcompletely 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:Carbonmonoxide 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 thesesigns,theheatermaynotbeworkingproperly. Getfreshairatonce!Have heater serviced. Some people are more affected by carbon monoxide than others. These include pregnant women, persons withheartorlungdiseaseoranemia,thoseunderthe 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.

1.Use only kerosene, #1#2 diesel/fuel oil, JETA 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 connectionsshallbeinspectedforleaks.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 ishotoriffuelhasaccumulatedincombustion 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,paintthinners,alcoholorotherhighly 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

	Fuel
	Tank
	Side Cover
	Ignition Control			Air Filter
				End
	Assembly (On	Inside	Fuel Cap
				Cover
	of Side Cover)
	Figure 1 - 40 Model

Hot Air

Outlet

Fan Guard	Thermostat
	Knob

Fuel

Tank

Side Cover

Ignition Control

Assembly (On

Inside of Side

Cover)

	ON/OFF Switch	Air Filter
		End
	with Light
		Cover

Fuel Cap/Gauge

Figure 2 - 55/70 Model

Hot Air Outlet	Thermostat Knob
Fuel
Tank

Fuel Cap/

Gauge

Side Cover

Ignition Control

Assembly (On Inside

of Side Cover)

Fan

Guard

ON/OFF Switch with Light

Figure 3 - 115 Model
Hot Air Outlet	Fuel Cap/
	Gauge	Thermostat Knob
	Fan Guard
Fuel
Tank

Side Cover
Ignition Control	ON/OFF Switch
	with Light

Assembly (On Inside

of Side Cover)

Figure 4 - 165 Model

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FUELS

WARNING: Use only kerosene, #1/#2 diesel/fuel oil, JET A orJP-8fuelstoavoidriskoffireor explosion.Neverusegasoline,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-8fuels.HeavierfuelssuchasNo.2fueloilorNo. 2 diesel fuel may also be used but will result in:

•noticeable odor

•additional fuel filter maintenance

•theneedfornontoxic,anti-iceradditivesinvery 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 storagecontainerisclean.Foreignmattersuchasrust, 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.

VENTILATION

WARNING:Provideafreshair 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,30inch(76.2cm)windowsraised15inches (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.

Combustion Chamber	Ignitor	Fan Motor	Air Pump Air Intake Filter
Clean			Cool Air In
Heated
Air Out
			Air Output Filter
Fuel
Tank Nozzle	Fuel	Air Line	Ignition Control
	Filter	To Burner	Assembly
Air For Fuel		Air For	Fuel
System		Combustion

And Heating

Figure 5 - Cross Section Operational View

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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

1.Slide axle through wheel support frame. Install 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. Insertscrewsthroughhandle(s),fueltankflange, 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	Cord Cleat with Bolts
		and Nuts (If provided)
		Handle (If
		provided)
	Screw
	Hot Air
	Outlet	Air
	Fuel	Inlet
	Tank
	Flange
	Wheel Support
	Frame

Nut

Cap Nut

Wheel

	Axle	Extended
		Hub

Wheel Spacer

(If Provided)

Figure 7 - Wheel and Handle Assembly,

115/165 Models Only

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OPERATION

IMPORTANT:ReviewandunderstandthewarningsintheSafety 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.Locateheatertoprovidemaximumcirculation of the heated air. Follow all location requirements 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-wireextensioncord.Extension cord must be at least six feet (1.8 meters) long.

Extension Cord Size Requirement

6to10feet(1.8to3meters)long,use18AWG (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.Forthermostatmodels,adjustthermostatknob tothedesiredsetting. Note:Acoldheatermay affectthethermostatsetting.Thisthermostatis ageneral-heatingcontrol.Itisnotintendedfor precisetemperaturecontrol.Adjustthermostat until heater cycles at the desired setting.

TO STOP HEATER

Without ON/OFF Switch

Unplug extension cord from outlet.

With ON/OFF Switch

PushON/OFFswitchtoOFF(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 To Start Heater.

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

Models

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OPERATION WITH
PORTABLE GENERATOR
WARNING: Before operating
heater or any appliance from a
portable	generator, verify that
generatorhasbeenproperlycon-
nectedtoearthground.Improper
grounding or failure to ground
generator can result in electro-
cution if a ground fault occurs.
Refertoowner’smanualsupplied
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 au-
tomatic idle feature, the output voltage should be
measuredwiththegeneratorrunningatfullspeed).
If the voltage does not measure in this range the
heater should not be plugged into the generator.
Refer to Operation, page 6, for starting, stopping,
and resetting heater procedures.
Alternator	Ground Lug
	Copper
	or Brass
	Grounding
	Point

Ground Wire (#10

AWG - Stranded-

Copper)

Figure 10 - Typical Generator Grounding Method (Generator construction may vary from that shown)

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, removedrainplugtodrainallfuel.Ifheaterdoes nothavedrainplug,drainfuelthroughfuelcap 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 quartsofcleankerosenetotank,stir,anddrain again. This will prevent excess debris from clogging filters during future use.

4.Replace fuel cap or drain plug. Properly dispose of old and dirty fuel. Check with local automotive service stations that recycle oil.

5.If storing, store heater in dry place. Make sure storage place is free of dust and corrosive fumes.

IMPORTANT:Donotstorekeroseneoversummer months for use during next heating season. Using old fuel could damage heater.

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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

How Often

How To

Fuel tank

Air output and lint filters

Air intake filter

Fuel filter

Ignitor

Fan blades

Motor

Flush every 150-200 hours of operation	See Storing, Transporting, or
or as needed	Shipping, page 7
Replace every 500 hours of operation	See Air Output, Air Intake, and
or once a year	Lint Filters, page 10
Wash and dry with soap and water every	See Air Output, Air Intake, and
500 hours of operation or as needed	Lint Filters, page 10
Clean twice a heating season or as	See Fuel Filter, page 11
needed
No maintenance required
Clean every season or as needed	See Fan, page 10
Not required/permanently lubricated

TROUBLESHOOTING

WARNING: Never service heater while it is plugged in, operating or hot. Severe burns and electrical shock can occur.

FAULT CONDITION	POSSIBLE CAUSE		REMEDY
Motordoesnotstartfiveseconds	1.	No power to heater	1.	Check circuit breaker in elec-
after heater is plugged in	2.	ON/OFF switch not in the		trical panel
			2.	VerifytheON/OFFswitchisin
		ON(|) position		ON (|) position and light is on
	3.	Thermostat setting is too low	3.	Turn thermostat knob to a
				higher setting

WARNING: High voltage!

4.Bad electrical connection between motor and ignition controlassemblyorignitioncontrol assembly and power cord

5.Binding pump rotor

6.Defective ignition control assembly

7.Defective motor

8.Blown fuse or ignitor control assembly

4.Check all electrical connections. See Wiring Diagrams, page 25

5.If fan does not turn freely, see

Pump Rotor, page 14

6Replace ignition control assembly

7.Replace motor

8.SeeIgnitionControlAssembly, page 15

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TROUBLESHOOTING

Continued

FAULT CONDITION	POSSIBLE CAUSE		REMEDY
Motor startsandruns butheater	1. No fuel in tank		1.	Fill tank with kerosene
does not ignite	2.	Pump pressure incorrect	2.	See Pump Pressure Adjust-
	3.	Dirty fuel filter		ment, page 11
			3.	See Fuel Filter, page 11
	4.	Obstruction in nozzle	4.	See Nozzle Assembly, page 13
	5.	Water in fuel tank	5.	Drain and flush fuel tank with
				clean kerosene. See Storing,
				Transporting or Shipping,
				page 7

			WARNING: High voltage!
	6.	Bad electrical connection		6.	Check electrical connections.
		between ignitor and ignition			See Wiring Diagrams, page 25
		control assembly
	7.	Defective ignitor		7.	Replace ignitor, see page 12
	8.	Defective ignition control		8.	Replace ignition control as-
		assembly			sembly
Heater ignites but ignition con-	1. Pump pressure incorrect			1.	See Pump Pressure Adjust-
trol assembly shuts heater off	2. Dirty air intake, air output,				ment, page 11
after a short period of time				2.	SeeAirOutput,AirIntake,and
		and/or lint filter			Lint Filters, page 10
	3.	Dirty fuel filter		3.	See Fuel Filter, page 11
	4.	Obstruction in nozzle		4.	See Nozzle Assembly, page 13
	5. Photocellassemblynotproperly			5.	Make sure photocell boot is
		installed (not seeing the flame)			properly seated in bracket
	6.	Dirty photocell lens		6.	Clean photocell lens

WARNING: High voltage!

7.Bad electrical connection betweenphotocellandignition control assembly

8.Defective photocell

9.Defective ignition control assembly

7.Check electrical connections. See Wiring Diagrams, page 25

8.Replace photocell

9.Replace ignition control assembly

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SERVICE PROCEDURES

WARNING: To avoid risk of burn and electrical shock, never attempttoserviceheaterwhileit is plugged in, operating or hot.

UPPER SHELL REMOVAL

1.Removescrewsalongeachsideofheaterusing 5/16"nut-driver.Thesescrewsattachupperand lower shells together. See Figure 11 or 12.

2.Lift upper shell off.

3.Remove fan guard.

Screw	Upper Shell

Fan Guard

Figure 11 - Upper Shell Removal,

40/55/70 Models Only

Screw

Upper Shell

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.

4.Clean fan using a soft cloth moistened with kerosene or solvent.

5.Dry fan thoroughly.

6.Replacefanonmotorshaft.Placefanhubflush with end of motor shaft (see Figure 14).

7.Placesetscrewonflatofshaft.Tightensetscrew firmly (40-50 inch-pounds/4.5-5.6 n-m).

8.Replace fan guard and upper shell.

Setscrew	Fan

	Motor Shaft
Figure 13 - Fan, Motor Shaft, and
	Setscrew Location
Motor	Setscrew	Fan
		Flush
	Motor
	Shaft
Figure 14 - Fan Cross Section
AIR OUTPUT, AIR INTAKE AND LINT
FILTERS

1.Remove upper shell (see Figure 11 or 12).

2.Removefilterendcoverscrewsusing5/16"nutdriver (see Figure 15 or Figure 16, page 11).

3.Remove filter end cover.

4.Replace air output and lint filters.

5.Wash or replaceair intake filter (see Preventative Maintenance Schedule, page 8).

	Air Intake Filter
	Filter End
	Cover
Lint Filter	Air Output Filter
Figure 15 - Air Output, Air Intake, and
Lint Filters, 40/55/70 Models Only

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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 Operation, page 6). Allow motor to reach full speed.

4.Adjust pressure. Turn relief valve to right to increase pressure. Turn relief valve to left to decrease pressure. See specifications correct pressure for each model (see Figure 18).

5.Remove pressure gauge. Replace pressure gauge plug in filter end cover.

Pressure
Gauge	Relief
Plug
	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

	Figure 17 - Pressure Gauge Plug
		Removal (70 Model Shown)
		Pump	Pressure
	Model	Pressure
			Gauge
	40	3.0 PSI
	55	3.4 PSI
	70	4.7 PSI
	115	5.1 PSI
	165	5.6 PSI

Side

Cover

Upper Fuel Line

Figure 20 - Fuel Filter Removal,

115/165 Models

Figure 18 - Adjusting Pump Pressure

(70 Model Shown)

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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.Disconnectignitor wiresfromignitioncontrol 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. Removephotocellfromphotocellbracket(see Figure 21).

6.Remove combustion chamber. Stand combustion 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.

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.Routetheignitorwiresbackdownthroughthe 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 hosetonozzleadapterassembly.SeeFuel 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).

	Combustion	Nozzle
		Adapter
	Chamber
		Bracket
	Air Line	Ignitor
	Hose
	Fuel
	Line	Ignitor
	Hose
		Wire
	Photocell
	Bracket	Ignition
	Photocell	Control
		Assembly
	Assembly
	Side Cover
	Figure 21 - Disconnecting Ignitor Wires
	from Ignition Control Assembly
	Ignitor Screw/
	Washer Assembly
		Ignitor
	Ignitor	Nozzle
	Element
	Photocell	Adapter
	Bracket	Bracket

	Combustion	Nozzle Adapter
	Chamber
		Bracket Opening
	Figure 22 - Ignitor Replacement
	Combustion
	Chamber
	Nozzle
	Adapter
	Bracket	Nozzle/
	Photocell	Adapter
		Assembly
	Bracket
	Air Line	Fuel Line Hose
	Hose
	Figure 23 - Removing Air and Fuel Line
	Hoses (40/55/70 Models Only)

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SERVICE PROCEDURES

	Continued
Combustion
Chamber
Nozzle
Adapter
Bracket	Nozzle/
Air Line	Adapter
	Assembly

Hose
Fuel
Line	Photocell
Hose	Bracket
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 Fan, page 10).

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.Carefullyremovenozzlefromthenozzleadapter 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" socketwrench4.5to5.1N-m(40to45in-lbs). See Figure 26.

10.Attach nozzle assembly to burner strap (see

Figure 25).

11.Attach fuel and airline hoses to nozzle assembly. See Fuel and Air Line Replacement and Proper Routing, page 14.

12.Replace fan (see Fan, page 10).

13.Replace fan guard and upper shell (see Upper Shell Removal, page 10).

Combustion
Chamber	Nozzle/
	Adapter
	Assembly

Figure 25 - Removing Nozzle/Adapter
Assembly
Nozzle Face
Nozzle Sleeve
Nozzle
Nozzle Adapter
Air Line
Fitting	Fuel Line	Fitting
Figure 26 - Nozzle and Nozzle Adapter

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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.Inspectfuelandairlinehosesforcracksand/or holes. If fuel line hose is damaged, disconnect from nozzle adapter (see Figure 23 or 24) and fromfuelfilter(seeFuelFilter,page11).Ifair 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:RoutehosesasshowninFigure23,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 Upper Shell Removal, page 10).

Pump End Cover		Barb Fitting
Barb
Fitting
Air Hose
40/55/70 Models	115/165 Models
Figure 27 - Air Hose to Barb Fitting

PUMP ROTOR (Procedure if Rotor is Binding)

1.Remove upper shell (see Upper Shell Removal, 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 Upper Shell Removal, page 10).

12.Adjust pump pressure (see Pump Pressure Adjustment, page 11).

Blade		Air Intake
	Pump Filter
	Plate	Filter
		End
		Cover
Insert Rotor
Air Output Filter
Figure 28 - Rotor Location, 40/55/70
Models
Blade
	Pump Plate
		Air
		Intake
		Filter
Insert
Rotor
Air Output Filter
Filter End Cover
Figure 29 - Rotor Location, 115/165
Models

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116170-01A

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.Sandrotorlightlyin“figure8”motion four times (see Figure 31).

15.Reinstall insert and rotor.

16.Perform steps 10 through 12.

Gap Adjusting Screw

Blade

.003"/.004"

(.076-.101 mm)

Gap Measured

With Feeler

Gauge

Rotor

Gap Adjusting Screw

Figure 30 - Gap Adjusting Screw

Locations

IGNITION CONTROL ASSEMBLY WARNING: High voltage!

1.Unplug heater.

2.Removesidecoverscrews(4)using5/16"nutdriver to expose ignition control assembly.

3.Remove fuse cover (see Figure 32).

4.Remove fuse from fuse clips (see Figure 32).

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
		Fuse

Sandpaper

Figure 32 - Replacing Fuse

Figure 31 - Sanding Rotor

	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, JETA 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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ILLUSTRATED PARTS BREAKDOWN

MODELS BC40 AND RC40

4

5

7

8

22

35

33

19

17

32

31

37

1

2

9-1

36

3

6

9

21

28

30

29

9-2 9-6

9-5

		11
		9-4	9-3
10			12
	18		13
20

16

23

24

25

26

27

34

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116170-01A

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)	Burner Head Assembly	1
10	M11084-26	Screw, #10-16 x 3/8"	2
11	103684-01	Fan	1
12	(see page 22)	Motor	1
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
		PARTS AVAILABLE - NOT SHOWN
	103814-01	Wire Tie	1
	105550-01	Warning/Maintenance Decal	1
	105550-02	Warning/Maintenance Decal	1

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