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
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.
2 |
www.desatech.com |
116170-01A |
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.
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
116170-01A |
www.desatech.com |
3 |
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.
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)
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
4 |
www.desatech.com |
116170-01A |
(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
116170-01A |
www.desatech.com |
5 |
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
6 |
www.desatech.com |
116170-01A |
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.
116170-01A |
www.desatech.com |
7 |
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 |
|
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
8 |
www.desatech.com |
116170-01A |
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
116170-01A |
www.desatech.com |
9 |
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 |
10 |
www.desatech.com |
116170-01A |
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)
116170-01A |
www.desatech.com |
11 |
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) |
12 |
www.desatech.com |
116170-01A |
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 |
116170-01A |
www.desatech.com |
13 |
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 |
|
|
14 |
www.desatech.com |
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. |
116170-01A |
www.desatech.com |
15 |
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
15
14
16 |
www.desatech.com |
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 |
|
|
|
|
116170-01A |
www.desatech.com |
17 |