Desa 50 Manuel utilisateur

Marque: Desa

Modèle: 50

Taper: Manuel utilisateur

Ce manuel convient également à

OWNER’S MANUAL

IMPORTANT

Read and understand this manual before assembling, starting, or servicing heater.

Improper use of heater can cause serious injury. Keep this manual for future reference.

CANADIAN

PORTABLE

FORCED

AIR HEATERS

50 SIDE PFA/PV 010A

Models: 35, 50, 70, 100, and 150

This heater is certified by the Canadian Gas Association to Canadian

Standards Specifications B140.0 and B140.8.

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Safety Information......................................................................... 3

Product Identification .................................................................... 4

Unpacking......................................................................................5

Assembly ....................................................................................... 5

35, 50, and 70 Models............................................................. 5

100 and 150 Models................................................................ 6

Theory of Operation ...................................................................... 7

Fuels .............................................................................................. 8

Ventilation ..................................................................................... 8

Operation ....................................................................................... 8

Storing, Transporting, or Shipping ................................................ 10

Preventative Maintenance Schedule.............................................. 10

Troubleshooting.............................................................................11

Service Procedures ........................................................................ 12

Upper Shell Removal .............................................................. 12

Fan...........................................................................................12

Air Output, Air Intake, and Lint Filters .................................. 12

Pump Pressure Adjustment .....................................................13

Fuel Filter................................................................................ 13

Spark Plug (35/50 Models) ..................................................... 14

Spark Plug (70/100/150 Models) ............................................14

Nozzle (35/50 Models) ........................................................... 15

Nozzle (70/100/150 Models) .................................................. 15

Pump Rotor .............................................................................16

Specifications ................................................................................ 17

Wiring Diagrams ........................................................................... 18

Accessories ....................................................................................19

Illustrated Parts Breakdown and Parts List ................................... 20

35 Model ................................................................................. 20, 21

50 Model ................................................................................. 22, 23

70 Model ................................................................................. 24, 25

100 Model ............................................................................... 26, 27

150 Model ............................................................................... 28, 29

Warranty and Repair Service.........................................................30

SECTION PAGE

CONTENTS

Install heater according to local regulations and

CSA standard B139.

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SAFETY

INFORMATION

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.

Early signs of carbon monoxide poisoning resemble the ﬂu, with headaches,

dizziness, and/or nausea. If you have these signs, the heater may not be working

properly. Get fresh air at once! Have heater serviced. Some people (such as

pregnant women, persons with heart or lung disease, persons with anemia, those

under the inﬂuence of alcohol, and those at high altitudes) are more affected by

carbon monoxide than others.

Make certain you read and understand all Warnings. Keep this manual for

reference. It is your guide to safe and proper operation of this heater.

• Use only kerosene or No. 1 fuel oil.

• Use only with the electrical voltage and frequency specified on model plate.

• Heater must be grounded. Use only a properly grounded three-wire extension

cord. Plug into grounded outlet only.

• Use only in areas free of flammable vapors or high dust content.

• Minimum clearance from any combustible materials: 8 feet (244 cm) from hot

air outlet; 6 feet (183 cm) from top; and 2 feet (61 cm) from sides and inlet.

• Locate heater on a stable and level surface while hot or operating or a fire may

occur.

• Use only in well ventilated areas. Provide ventilation of at least three square feet

(2,800 square cm) for each 100,000 Btu of rating.

• Keep children and animals away from heater at all times.

• Never start heater when combustion chamber is hot or if fuel has

accumulated in combustion chamber.

• When used with a thermostat, heater may start at anytime.

• When heater is moved or stored, it must be in a level position or fuel spillage may

occur.

• Use heater only in accordance with local ordinances and codes.

• Never use gasoline, crankcase drainings, naphtha, paint thinners, alcohol, or

other highly flammable fuels.

• Never use heater where gasoline, paint thinner, or other highly flammable vapors

are present.

• Never use heater in living or sleeping areas.

• Never leave a heater plugged in without adult supervision if children or animals

are likely to be present.

• Never move, handle, refuel, or service a hot, operating, or plugged-in heater.

• Never block air inlet at motor end (rear) of heater.

• Never attach duct work to front of heater.

• Never attach heater to external fuel tank.

WARNINGS

DANGER

Carbon monoxide poisoning may lead to death!

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PRODUCT

IDENTIFICATION

Side Cover

Fuel Tank

Lower

Shell

Fuel Cap

Power Cord

Upper Shell

Figure 2 - 100/150 Models

35/70,000 BTU/HR CANADIAN

PFA/PV 042A

Safety Control

Reset Button

Side Cover

Fuel Tank

Lower Shell

Hot Air Outlet

Nose Cone Guard

Handle

Upper Shell

Figure 1 - 35/50/70 Models

Power Cord

Fuel Cap

Air Filter

End Cover

Fan Guard

Hot Air

Outlet

Safety Control

Reset Button

Fan Guard

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1. Remove all protective packaging that has been applied to heater for shipment

2. Remove heater from carton.

3. Check heater for any shipping damage. If damage is found, promptly inform

dealer where heater was purchased.

ASSEMBLY

PFA/PV 042B

These models are furnished with a nose cone guard. Nose cone guard and

mounting screws are found in the shipping carton.

ASSEMBLY

(For 35, 50, and 70

Models Only)

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

UNPACKING

Hot Air Outlet

Upper Shell

Flange

Figure 3 - Nose Cone Guard Assembly, 35/50/70 Models Only

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These models are furnished with wheels and a front handle. Some models are

furnished with a rear handle also. Wheels, handle(s), and the mounting hardware is

found in the shipping carton.

Tools Needed

• Medium Phillips Screwdriver

• 3/8" Open or Adjustable Wrench

• Hammer

1. Slide axle through wheel support frame. Install wheels on axle.

IMPORTANT:

Place extended hub of wheel toward wheel support frame.

2. Place cap nuts on axle ends. Gently tap with hammer to secure.

3. Place heater on wheel support frame assembly. Make sure air inlet end of

heater is over wheels.

4. Place front handle (and rear handle if provided) on top of fuel tank flange.

Insert screws through handle(s), fuel tank flange and wheel support frame.

Attach nut finger tight after each screw is inserted.

5. Tighten all nuts firmly.

Hot Air

Outlet

ASSEMBLY

(For 100 and 150 Models Only)

Wheel

Support

Frame

Wheel

Axle

Fuel

Tank

Flange

Extended

Hub

Air Inlet

Screw

Front

Handle

Rear

Handle

Nut

Cap Nut

Figure 4 - Wheel and Handle Assembly, 100/150 Models Only

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Fuel

Filter

Air For Fuel

System

Air For Combustion

And Heating

Fuel

Spark

Plug

Combustion

Chamber

Cool

Air

Clean

Heated

Air Out

Output

Air

Filter

The Fuel System: An air pump is located on one end of the motor shaft. The

air pump forces air through the air line. The air is then pushed through the burner

head nozzle. The moving air causes fuel to be lifted from the tank. The fuel and air

mixture is sprayed into the combustion chamber in a fine mist.

The Air System: The motor turns a fan which pushes air into and around the

combustion chamber. This air is heated and provides a stream of clean, hot air.

The Ignition System: The electronic ignitor causes the spark plug to ignite the

fuel and air mixture.

The Safety Control System: This system causes the heater to shut down if the

flame goes out.

THEORY OF

OPERATION

Figure 5 - Cross Section Operational View

Burner

Head

Fan

Intake

Air

Filter

Air Pump

Motor

Air Line

To Burner

Fuel

Tank

Nozzle

Electronic

Ignitor

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Use only kerosene or No. 1 fuel oil. Do not use heavy fuels such as No. 2 fuel oil

or No. 2 diesel. The use of heavy fuels will result in:

• clogging of fuel filter and nozzle

• carbon build up on spark plug

• the need of non-toxic anti-icer in fuel during very cold weather

Do not use No. 3 fuel oil or heavy oils such as crankcase drainings. These heavy

oils will not ignite properly and will contaminate the heater.

IMPORTANT:

Use a KEROSENE ONLY storage container. Be sure storage

container is clean. Foreign matter such as rust, dirt or water will cause the heater’s

safety control to shut down heater. Foreign matter may also require heater’s fuel

system to be frequently cleaned.

To Start Heater

1. Fill fuel tank with kerosene or No. 1 fuel oil.

2. Attach fuel cap.

3. Follow all ventilation and safety information.

Example:

A 150 model heater requires one of the following:

• a two-car garage door raised six inches (15.24 cm)

• a single-car garage door raised nine inches (22.86 cm)

• two, thirty-inch (76.20 cm) windows raised twelve inches (30.48 cm)

FUELS

WARNING

Use only kerosene or No. 1 fuel oil to avoid risk of fire or

explosion. Never use gasoline, crankcase drainings, naph-

tha, paint thinners, alcohol, or other highly flammable fuels.

WARNING

Provide a fresh air opening of at least one square foot (930

square cm) for each 35,000 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.

VENTILATION

OPERATION

IMPORTANT

Review and understand the warnings in the Safety Information Section.

They are needed to safely operate this heater. Follow all local ordinances

and codes when using this heater.

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4. Plug heater’s power cord into approved, grounded, three-wire extension cord.

Extension cord must be at least six feet (1.8 meters) long.

Extension Cord Size Requirement

6 to 10 feet (1.8 to 3 meters) long, use 18 AWG (0.75 mm

) rated cord

11 to 100 feet (3.3 to 30.5 meters) long, use 16 AWG (1.0 mm

) rated cord

101 to 200 feet (30.8 to 61 meters) long, use 14 AWG (1.5 mm

) rated cord

5. Plug extension cord into standard 120 volt/60 hertz, 3-prong grounded outlet.

Heater will start when extension cord is plugged into outlet. If not, push in

heater’s safety control reset button (see Figures 6 and 7).

Figure 6 - Safety Control Reset

Button, 35/50/70 Models

Figure 7 - Safety Control Reset

Button, 100/150 Models

To Stop Heater

1. Unplug extension cord from outlet.

To Restart Heater

1. Wait two minutes after stopping heater.

2. Repeat steps under To Start Heater.

Safety

Control

Reset

Button

Safety

Control

Reset

Button

OPERATION

Continued

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Note:

If shipping, transport companies require fuel tanks to be empty.

1. Drain fuel tank.

Note:

Some models have drain plug on underside of fuel tank. If so, remove

drain plug to drain all fuel. If heater does not have drain plug, drain fuel

through fuel cap opening. Be sure all fuel is removed.

2. Replace drain plug if provided.

3. If any debris is noted in old fuel, add 1 or 2 quarts of clean kerosene to tank,

stir, and drain again. This will prevent 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:

Do not store kerosene over summer months for use during next

heating season. Using old fuel could damage heater.

WARNING

To avoid risk of burn and electrical shock, never attempt to

service heater while it is plugged in, operating, or hot.

PREVENTATIVE

MAINTENANCE

SCHEDULE

STORING,

TRANSPORTING

OR SHIPPING

Item How Often How To

Fuel tank Flush every 150-200 hours See Storing, Transporting, or

of operation or as needed. Shipping, above.

Air output and Replace every 500 hours of See Air Output, Air Intake,

lint filters operation or once a year. and Lint Filters, page 12.

Air intake Wash and dry with soap and See Air Output, Air Intake,

filter water every 500 hours of op- and Lint Filters, page 12.

eration or replace as needed.

Fuel filter Clean twice a heating season See Fuel Filter, page 13.

or replace as needed.

Spark plug Clean and regap every 600 See Spark Plug, page 14.

hours operation or replace

as needed.

Fan blades Clean every season or See Fan, page 12.

as needed.

Motor Not required/permanently

lubricated

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TROUBLE-

SHOOTING

WARNING

To avoid risk of burn and electrical shock, never attempt to

service heater while it is plugged in, operating, or hot.

Incorrect pump pressure

Dirty air output, air

intake and lint filters

Dirty fuel filter

Dirt in nozzle

Dirty photocell lens

Defective safety control

Heater ignites, but

safety control shuts

off heater after a

short period of time.

Heater will not

ignite, but motor runs

for a short period of

time.

Incorrect pump pressure

Carbon deposits on spark

plug and/or improper

gap

Dirty fuel filter

Dirt in nozzle

Water in fuel tank

Electronic ignitor not

grounded

Defective electronic

ignitor

WARNING: High voltage!

Solid state relay not

allowed to reset

Binding pump rotor

Motor does not start;

thermostat (if used)

is set to call for heat.

Motor thermal trip out

Motor hums when

heater is plugged in,

fan rotates slowly or

does not turn.

OBSERVED FAULT POSSIBLE CAUSE REMEDY

See Pump Pressure

Adjustment, page 13.

See Air Output, Air Intake

and Lint Filters, page 12.

See Fuel Filter, page 13.

See Nozzle, page 15.

Clean photocell lens.

Replace safety control.

See Pump Pressure

Adjustment, page 13.

See Spark Plug, page 14.

See Fuel Filter, page 13.

See Nozzle, page 15.

Drain and ﬂush fuel tank

with clean kerosene. See

Storing, Transporting,

or Shipping, page 10.

Make sure electronic

ignitor mounting is tight.

Replace electronic ignitor.

Wait two minutes before

trying to restart heater.

If fan is hard to turn, see

Pump Rotor, page 16.

Wait for motor to cool

down. It will reset

automatically.

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Fan Guard

Upper Shell

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.

2. Lift upper shell off.

3. Remove fan guard.

SERVICE

PROCEDURES

Air Output

Filter

Lint Filter

Air Output

Filter

Lint Filter

Air Intake

Filter

Filter End

Cover

Fan

Guard

Figure 11 - Air Output, Air Intake,

and Lint Filters, 35/50/70 Models

Figure 12 - Air Output, Air Intake,

and Lint Filters, 100/150 Models

Filter End

Cover

Air Intake

Filter

Fan

IMPORTANT:

Remove fan from motor

shaft before removing motor from

heater. The weight of the motor resting

on the fan could damage the fan pitch.

1. Remove upper shell (see above).

2. Use 1/8" allen wrench to loosen

setscrews which holds fan to motor

shaft.

3. Slip fan off motor shaft.

4. Clean fan using a soft cloth

moistened with kerosene or solvent.

5. Dry fan thoroughly.

6. Replace fan on motor shaft. Place

fan hub flush with end of motor

shaft (see Figure 10).

7. Place setscrews on flat of shaft.

Tighten setscrews firmly (40-50

inch-pounds/4.5-5.6 n-m).

8. Replace fan guard and upper shell.

Fan

Motor

Shaft

Figure 10 - Fan Cross Section

Fan

Setscrews

Motor

Shaft

Figure 9 - Fan, Motor Shaft,

and Setscrew Location

Setscrews

Air Output, Air Intake and

Lint Filters

1. Remove upper shell (see above).

2. Remove filter end cover screws

using 5/16" nut-driver.

3. Remove filter end cover.

4. Replace air output and lint filters.

5. Wash or replace air intake filter (see

Preventative Maintenance Schedule,

page 10).

6. Replace filter end cover.

7. Replace fan guard and upper shell.

IMPORTANT:

Do not oil filters.

Fan Guard

Figure 8 - Upper Shell Removal

Flush

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Relief

Valve

Pressure

Gauge

Plug

(35/50/70 Models Shown)

Figure 13 - Pressure Gauge Plug Removal

Pump

Model Pressure

35 3 PSI

50 3.6 PSI

70 4 PSI

100 4 PSI

150 5 PSI

Pressure

Gauge

Figure 14 - Adjusting Pump Pressure

Pump Pressure

Adjustment

1. Remove pressure gauge plug from

filter end cover.

2. Install accessory pressure gauge

(part number HA1180).

3. Start heater (see Operation, page 8).

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 at right

for correct pressure for each model.

5. Remove pressure gauge. Replace

pressure gauge plug in filter end

cover.

Fuel Filter

1. Remove side cover screws using

5/16" nut-driver.

2. Remove side cover.

3. Pull upper fuel line off fuel filter

neck (see Figure 15).

4. Carefully pry bushing, fuel filter,

and lower fuel line (100/150

models only) out of fuel tank (see

Figure 16).

5. Wash fuel filter with clean fuel and

replace in tank.

6. Attach upper fuel line to fuel filter

neck.

7. Replace side cover.

35/70 FUEL FILTER REMOVAL

PFA/P 037A

Side Cover

Figure 15 -

Fuel Filter Removal, 35/50/70 Models

Fuel Filter

Side Cover

Upper Fuel Line

Figure 16 - Fuel Filter Removal, 100/150 Models

Fuel Filter, Bushing,

and Lower Fuel Line

Upper

Fuel

Line

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Spark Plug

(35/50 Models)

1. Remove upper shell (see page 12).

2. Remove fan (see page 12).

3. Remove fuel and air line hoses

from nozzle assembly.

4. Remove spark plug cable from

spark plug.

5. Remove two screws using 5/16"

nut-driver and remove burner strap.

6. Place hex-body of spark plug into

vise and tighten.

7. Remove spark plug mounting nut

using 11/16" open-end wrench.

8. Remove burner strap from spark

plug.

9. Clean and regap spark plug

electrodes to .055" (1.4 mm) gap.

10.Replace burner strap onto spark

plug. Rotate burner strap to

position spark plug electrodes as

shown in Figure 19.

11.Tighten spark plug with spark plug

mounting nut.

12.Release hex-body of spark plug

from vise.

13.Replace burner strap onto combus-

tion chamber.

14.Attach spark plug cable to spark

plug.

15.Attach fuel and air line hoses to

nozzle assembly.

16.Replace fan (see page 12).

17.Replace fan guard and upper shell.

Air Line

Hose

Burner

Strap

Spark Plug

Cable

Nozzle Assembly

Fuel Line Hose

Spark

Plug

Spark Plug

Mounting Nut

Figure 17 - Spark Plug Removal, 35/50 Models

Combustion

Chamber

Bend Here

to Adjust

Gap

Figure 18 - Spark Plug Gap, 35/50 Models

Burner

Strap

45°

Figure 19 - Spark Plug Rotation, 35/50 Models

Spark Plug

(70/100/150 Models)

1. Remove upper shell (see page 12).

2. Remove fan (see page 12).

3. Remove spark plug cable from

spark plug.

4. Remove spark plug from burner

head using 13/16" open-end

wrench.

5. Clean and regap spark plug elec-

trodes as follows:

70/100 Models = .055" (1.4 mm) gap

150 Model = .075" (1.9 mm) gap

6. Install spark plug in burner head.

7. Attach spark plug cable to spark plug.

8. Replace fan (see page 12).

9. Replace fan guard and upper shell.

Spark

Plug

Spark Plug

Cable

Burner

Head

Figure 20 - Spark Plug Removal, 70/100/150 Models

Figure 21 - Spark Plug Gap, 70/100/150 Models

.055" (1.4 mm) Gap

Bend Here

to Adjust

Gap

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Nozzle

(35/50 Models)

1. Remove upper shell (see page 12).

2. Remove fan (see page 12).

3. Remove fuel and air line hoses

from nozzle assembly.

4. Turn nozzle assembly 1/4 turn to

left and pull toward motor to

remove.

5. Place plastic hex-body into vise

and lightly tighten.

6. Carefully remove nozzle from the

nozzle adapter using 5/8" socket

wrench.

7. Blow compressed air thru face of

nozzle. This will free any dirt in

nozzle area.

8. Inspect nozzle seal for damage.

9. Replace nozzle into nozzle adapter

until nozzle seats. Tighten 1/3 turn

more using 5/8" socket wrench (40-

45 inch-pounds/4.5-5.1 n-m).

10.Attach nozzle assembly to burner

strap.

11.Attach fuel and airline hoses to

nozzle assembly.

12.Replace fan (see page 12).

13.Replace fan guard and upper shell.

Nozzle

Adapter

Air Line

Fitting

Fuel Line

Fitting

Nozzle

Seal

Figure 24 - Nozzle and Nozzle Adapter, 35/50 Models

Nozzle

Assembly

Fuel Line Hose

Figure 23 - Removing Nozzle Assembly,

35/50 Models

Nozzle

(70/100/150 Models)

1. Remove upper shell (see page 12).

2. Remove fan (see page 12).

3. Remove fuel and air line hoses from

burner head.

4. Remove spark plug cable from spark

plug.

5. Remove spark plug from burner

head using 13/16" open-end wrench.

6. Remove three screws using

5/16" nut-driver and remove burner

head from combustion chamber.

7. Place burner head into vise and

lightly tighten.

Spark Plug

Cable

Spark

Plug

Combustion

Chamber

Figure 25 - Removing Burner Head, 70/100/150 Models

Combustion

Chamber

Air Line Hose

Figure 22 - Removing Air and Fuel

Line Hoses, 35/50 Models

Air Line Hose

Fuel Line Hose

Nozzle

Assembly

Burner

Strap

Screw

Continued

Nozzle Face

Nozzle

Burner Head

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8. Carefully remove nozzle from

burner head by using 5/8" socket

wrench (see Figure 26).

9. Blow compressed air thru face of

nozzle. This will free any dirt in

nozzle area.

10.Inspect nozzle seal for damage.

11.Replace nozzle into burner head

and tighten firmly (80-110 inch-

pounds/9.1-12.4 n-m).

12.Attach burner head to combustion

chamber.

13.Install spark plug in burner head.

14.Attach spark plug cable to spark

plug.

15.Attach fuel and airline hoses to

burner head.

16.Replace fan (see page 12).

17.Replace fan guard and upper shell.

Continued

50 ROTOR-Domestic

PFA/P 056B

Rotor

Air Output

Filter

Insert

Fan Guard

Filter End

Cover

Air Intake

Filter

Blade

Pump

Plate

Pump Rotor

(Procedure if rotor is binding)

1. Remove upper shell (see page 12).

2. Remove filter end cover screws

using 5/16" nut-driver.

3. Remove filter end cover and air

filters.

4. Remove pump plate screws using

5/16" nut-driver.

5. Remove pump plate.

6. Remove rotor, insert, and blades.

7. Check for debris in pump. If debris

is found, blow out with compressed

air.

8. Install insert and rotor.

9. Check gap on rotor. Adjust to

.003"/.004" (.076-.101 mm) if

needed (see Figure 29).

Note:

Rotate Rotor one full turn to

insure the gap is .003"/.004" (.076-.101

mm) at tightest position. Adjust if

needed.

10.Install blades, pump plate, air filters,

and filter end cover.

11.Replace fan guard and upper shell.

12.Adjust pump pressure (see page 13).

Note:

If rotor is still binding, proceed as

follows.

100 ROTOR-Domestic PFA/P 059A

Insert

Rotor

Air Output

Filter

Blade

Filter End

Cover

Air Intake

Filter

Pump

Plate

Figure 28 - Rotor Location, 100/150 Models

Figure 27 - Rotor Location, 35/50/70 Models

Fan Guard

Figure 26 - Removing Nozzle, 70/100/150 Models

Nozzle Seal

Nozzle Face

Nozzle

Fuel Line Fitting

Burner Head

Air Line Fitting

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13.Perform steps 1 thru 6 (see

page 16).

14.Place fine grade sandpaper

(600 grit) on flat surface.

Sand rotor lightly in “figure

8” motion four times (see

Figure 30).

15.Reinstall insert and rotor.

16.Perform steps 10 thru 12 (see

page 16).

Figure 29 - Gap Adjusting Screw Locations

Gap Adjusting Screw

Rotor

Sandpaper

Figure 30 - Sanding Rotor

Model Size 35 50 70 100 150

Output Rating (Btu/Hr) 35,000 50,000 70,000 98,000 150,000

Fuel Use Only Kerosene or No. 1 Fuel Oil

Fuel Tank Capacity

(U.S. Gal./Liters) 3/11.3 4/15.1 5/18.9 9/34 13.5/51

Fuel Consumption

(Gal. Per Hr/Liters Per Hr) .26/.98 .37/1.40 .5/1.89 .74/2.80 1.12/

4.24

Nozzle Spray Angle 50° 50° 50° 60° 60°

Nozzle Spray Pattern Solid Cone (All Models)

Electric Requirements 120 V/60 HZ (Same All Models)

Amperage (Normal Run) 1.7 2.0 2.3 3.2 4.4

Motor RPM 1725 1725 3450 3450 3450

Hot Air Output (CFM) 165 165 253 481 500

SPECIFICATIONS

Blade

.003"/.004" (.076-.101 mm)

Gap Measured With

Feeler Gauge

Gap Adjusting Screw

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WIRING

DIAGRAMS

White

Black

Blue

Green

Power Plug

120V/60Hz

Photocell

Spark Plug

Ignitor

Flame-

Out

Control

Reset

Button

Red

Blue

White

Red

Green

Terminal

Board

Motor

Figure 31 - Wiring Diagram, 35/50 Models

Figure 32 - Wiring Diagram, 70/100/150 Models

White

Black

Blue

Green

Power Plug

120V/60Hz

Photocell

Spark Plug

Ignitor

Flame-

Out

Control

Reset

Button

Red

Motor

Blue

White

Red

Green

Terminal

Board

Red

Relay

Black

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ACCESSORIES

Heater accessories and parts are

available at your local dealer.

Should your dealer not stock or is

unable to order a particular acces-

sory or part, please contact DESA

Industries for more information.

DESA Industries of Canada, Inc.

2220 Argentia Road

Unit #4

Mississauga, Ontario

L5N 2K7

Parts Department

1-905-826-8010

HEAVY DUTY

WHEELS AND

HANDLE KIT - HA1202

For heavy duty applications.

Makes your heater even more

portable and convenient. Fits 35/50/70 models.

THERMOSTAT

KIT - HA1210

For all models. Keeps your building at the

temperature you select day and night. Helps

economize on fuel.

AIR GAUGE KIT - HA1180

For all models. Special tool to

check pump pressure.

099618

ILLUSTRATED

PARTS

BREAKDOWN

35 Model

9-1

9-2

9-3

9-4

9-5

12-1

12-3

12-6

12-10

12-2

12-4

12-5

12-7

12-9

12-8

12-11

Motor and Pump Assembly

12-18

12-17

12-16

12-15

12-14

12-13

12-12

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Modèle: 50

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Desa 50 Manuel utilisateur

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