Master H.S.I. Series User manual

Heater Sizes: 30,000 70,000 90,000 150,000 BTU/Hr

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.

PORTABLE

FORCED

AIR HEATERS

OWNER’S MANUAL

099605

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

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

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

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

Theory of Operation ......................................................................6

Fuels ..............................................................................................6

Ventilation .....................................................................................7

Operation .......................................................................................7

Storage ........................................................................................... 8

Preventative Maintenance Schedule..............................................8

Troubleshooting.............................................................................9

Service Procedures ........................................................................10

Upper Shell Removal ..............................................................10

Fuel Filter (30/70,000 BTU/Hr Models)................................. 10

Fuel Filter (90,000 BTU/Hr Model) ....................................... 11

Fuel Filter (150,000 BTU/Hr Model) .....................................11

Spark Plug (30,000 BTU/Hr Model) ...................................... 12

Spark Plug (70/90/150,000 BTU/Hr Models).........................13

Air Output, Air Intake, and Lint Filters .................................. 14

Pump Pressure Adjustment ..................................................... 14

Nozzle (30,000 BTU/Hr Model).............................................15

Nozzle (70/90,000 BTU/Hr Models) ...................................... 16

Nozzle (150,000 BTU/Hr Model)...........................................17

Pump Rotor .............................................................................18

Fan........................................................................................... 19

Speciﬁcations................................................................................. 19

Wiring Diagrams ...........................................................................20

Illustrated Parts Breakdown and Parts List ...................................22

30,000 BTU/Hr Model............................................................22

70,000 BTU/Hr Model............................................................24

90,000 BTU/Hr Model............................................................26

150,000 BTU/Hr Model..........................................................28

Wheels and Handles (90/150,000 BTU/Hr Models)...............30

Accessories ....................................................................................31

Warranty and Repair Service.........................................................Back Cover

CONTENTS SECTION PAGE

099605

SAFETY

INFORMATION WARNINGS

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.

Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning

resembletheﬂu,with headaches, dizziness, or nausea. If youhavethesesigns,the

heater may not be working properly. Getfresh air atonce!Have heater serviced.

Some people are more affected by carbon monoxide than others. These include

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

influence of alcohol, and those at high altitudes.

Make certain you read and understand all 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 to avoid risk of ﬁre or explosion. Never

use gasoline, naphtha, paint thinners, alcohol, or other highly ﬂammable

fuels.

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

vapors are present.

• Follow all local ordinances and codes when using heater.

• Use only in well-vented areas. Provide at least a three-square foot (2800

square cm) opening of fresh, outside air for each 100,000 BTU/Hr of rating.

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

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

• Use only a three-prong, grounded (earthed) extension cord.

• Minimum heater clearances from combustibles:

Outlet: 8 Ft. (250 cm) Sides, Top, and Rear: 4 Ft. (125 cm)

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

occur.

• When moving or storing heater, keep heater in a level position or fuel

spillage may occur.

• Keep children and animals away from heater.

• Unplug heater when not in use.

• When used with thermostat, heater may start anytime.

• Never use heater in living or sleeping areas.

• Never block air inlet (rear) or air outlet (front) of heater.

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

• Never attach duct work to front or rear of heater.

DANGER

Carbon monoxide poisoning may lead to death!

099605

Fuel Cap

Lower

Shell

Power Cord

Upper Shell

Figure 3 - 150,000 BTU/Hr Model

Handle

Fuel Cap

Lower Shell

Side Cover

Fuel Tank

Figure 1 - 30/70,000 BTU/Hr Models

Side Cover

Fuel Tank

Lower

Shell

Fuel Cap

Fan Guard

Upper Shell

PRODUCT

IDENTIFICATION Upper Shell

Hot Air Outlet

Hot Air

Outlet

Hot Air

Outlet

Air Filter

End Cover

Fan Guard

Power Cord

Flame-Out

Control Reset

Button

(EDI Model Only)

Figure 2 - 90,000 BTU/Hr Model

Fuel

Tank

Fan Guard

Air Filter

End Cover

Flame-Out

Control Reset Button

(EDI Model Only)

Flame-Out Control

Reset Button

(EDI Model Only)

Power Cord

099605

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.

ASSEMBLY

(For 90,000 and 150,000

BTU/Hr Models Only)

These models are furnished with wheels and handles. Wheels, handles, 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 wheels on axle.

IMPORTANT:

When installing wheels, point extended hub of wheels toward

wheel support frame (see Figure 4).

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

3. Placeheateronwheelsupportframe.Makesureairinletend(rear)ofheaterisover

wheels. Line up holes on fuel tank ﬂange with holes on wheel support frame.

4. Place front handle and rear handle on top of fuel tank ﬂange. Insert screws

through handles, fuel tank ﬂange, and wheel support frame. Attach nut ﬁnger

tight after each screw is inserted.

5. After all screws are inserted, tighten nuts ﬁrmly.

Figure 4 - Wheel and Handle Assembly, 90/150,000 BTU/Hr Models Only

Screw

Fuel

Tank

Flange

Wheel

Support

Frame

Wheel

Cap Nut

Nut

Extended

Hub

Air

Inlet

Rear

Handle

Hot Air

Outlet

Front Handle

Axle

099605

THEORY OF

OPERATION The Fuel System: The air pump forces air through the air line. The air is then

pushed through the burner head nozzle. This air causes fuel to lift 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 electronic ignitor sends voltage to the spark plug.

The spark plug ignites the fuel and air mixture.

The Flame-Out Control System (EDI Models Only): This system causes

the heater to shut down if the ﬂame goes out.

Fan

Fuel

Filter

Air For Fuel

System Air For Combustion

And Heating Fuel

Spark

Plug

Combustion

Chamber Intake

Air

Filter

Motor Air Pump

Air line

To Burner Electronic

Ignitor

Burner

Head

Clean

Heated

Air Out

Cool

Air

Output

Air

Filter

Nozzle

Fuel

Tank

Figure 5 - Cross Section Operational View

FUELS

Do not use heavy fuels such as No. 2 fuel oil or No. 2 Diesel. Using heavy fuels

will result in:

• clogged fuel ﬁlter and nozzle

• carbon build up on spark plug

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

IMPORTANT:

Use a KEROSENE ONLY container. Be sure storage container is

clean. Foreign matter such as rust, dirt, or water will cause the flame-out control to

shut down heater (EDI models only). Foreign matter may also require you to clean

fuel system often.

WARNING

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

explosion. Never use gasoline, naphtha, paint thinners,

alcohol or other highly ﬂammable fuels.

099605

VENTILATION

OPERATION

Continued

Figure 6 - Flame-Out Control Reset

Button, 30/70,000 BTU/Hr EDI Models Figure 7 - Flame-Out Control Reset

Button, 90,000 BTU/Hr EDI Model

Provide a fresh air opening of at least three square feet (2800 square cm) for each

100,000 BTU/Hr rating. Provide extra fresh air if more heaters are being used.

Example:

A 150,000 BTU/Hr 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)

WARNING

Review and understand the warnings in the Safety

Information Section. They are needed to safely operate this

heater. Follow all local codes when using this heater.

To Start Heater

1. Follow all ventilation and safety information.

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

3. Attach fuel cap.

4. Plug power cord of heater into standard 230 volt/50 hertz, grounded (earthed)

outlet. Use an extension cord if needed. Use only a three-prong, grounded

(earthed) extension cord.

Extension Cord Wire Size Requirements

Up to 100 feet (30.5 meters) long, use 16 AWG (1.0 mm2) conductor

101 to 200 feet (30.6 to 61 meters) long, use 14 AWG (1.5 mm2) conductor

Heater will start when power cord is plugged into outlet. If not, push in flame-

out control reset button (EDI models only; see Figures 6 thru 8).

WARNING

Follow the minimum fresh, outside air ventilation

requirements. If proper fresh, outside air ventilation is not

provided, carbon monoxide poisoning can occur. Provide

proper fresh, outside air ventilation before running heater.

Flame-Out Control

Reset Button Flame-Out Control

Reset Button

099605

OPERATION

Continued

Figure 8 - Flame-Out Control Reset Button, 150,000 BTU/Hr EDI Model

Continued

PREVENTATIVE

MAINTENANCE

SCHEDULE

Item How Often How To

Fuel tank Flush every 150-200 hours See Storage above.

of operation or as needed.

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

lint ﬁlters operation or once a year. and Lint Filters, page 14.

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

ﬁlter water every 500 hours of and Lint Filters, page 14.

operation or as needed.

Fuel ﬁlter Clean twice a heating season See Fuel Filter, pages 10

or as needed. and 11.

To Stop Heater

1. Unplug power cord from outlet.

To Restart Heater

1. Wait 2 minutes after stopping heater.

2. Repeat steps under To Start Heater, page 7.

STORAGE 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 used.

3. Add one gallon (4 liters) of clean kerosene to fuel tank.

4. Attach fuel cap.

5. Move heater forwards and backwards to stir fuel.

6. Remove fuel cap or drain plug and drain fuel tank. Be sure all fuel is removed.

7. Replace fuel cap or drain plug. Properly dispose of old and dirty fuel.

8. 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.

Flame-Out

Control

Reset Button

(Fan Guard

Removed)

WARNING

Never service heater while it is plugged in, operating, or

hot. Severe burns and electrical shock can occur.

099605

Continued

Item How Often How To

Spark plug Clean and regap every 600 See Spark Plug, pages 12 and 13.

hours operation or replace

as needed.

Fan blades Clean every season or as needed. See Fan, page 19.

Motor Not required/permanently lubricated

TROUBLE-

SHOOTING

OBSERVED FAULT POSSIBLE CAUSE REMEDY

Wrong pump pressure

Dirty air output, air intake,

and lint ﬁlters

Dirty fuel ﬁlter

Dirt in nozzle

Dirty photocell lens

Bad flame-out control

Heater ignites, but

flame-out control

shuts off heater after

a short period of time

(EDI models only).

See Pump Pressure

Adjustment, page 14.

See Air Output, Air Intake

and Lint Filters, page 14.

See Fuel Filter, pages 10

and 11.

See Nozzle, pages 15 thru

17.

Clean photocell lens.

Replace flame-out control.

Heater will not

ignite, but motor runs

for a short period of

time.

Wrong 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 (earthed)

Bad electronic ignitor

See Pump Pressure

Adjustment, page 14.

See Spark Plug, pages 12

and 13.

See Fuel Filter, pages 10

and 11.

See Nozzle, pages 15 thru

17.

Drain and ﬂush fuel tank

with clean kerosene. See

Storage, page 8.

Make sure electronic

ignitor mounting is tight.

Replace electronic

ignitor.

Motor does not start

when heater is

plugged in, fan

rotates slowly or

does not turn.

Flame-out control not reset

(EDI models only)

Binding pump rotor

Reset flame-out control

button, see Figures 6 thru

8, pages 7 and 8.

If fan is hard to turn, see

Pump Rotor, page 18.

WARNING

Never service heater while it is plugged in, operating, or hot.

Severe burns and electrical shock can occur.

WARNING: High voltage!

099605

Fan

Guard

Figure 12 - Fuel Filter Removal, 30/70,000 BTU/Hr Models

Figure 11 - Upper Shell Removal, 150,000 BTU/Hr Model

Figure 9 - Upper Shell Removal,

30/70,000 BTU/Hr Models Figure 10 - Upper Shell Removal,

90,000 BTU/Hr Model

Fuel Filter

Side Cover

Fuel Line

Fuel Filter

(30/70,000 BTU/Hr Models)

1. Remove side cover screws

using 5/16" nut-driver.

2. Remove side cover.

3. Pull rubber fuel line off

fuel ﬁlter neck.

4. Carefully pry bushing and

fuel ﬁlter out of fuel tank.

5. Wash fuel ﬁlter with clean

fuel and replace in tank.

6. Attach rubber fuel line to

fuel ﬁlter neck.

7. Replace side cover.

Fan Guard

Upper

Shell

SERVICE

PROCEDURES

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.

WARNING

Never service heater while it is plugged in, operating, or

hot. Severe burns and electrical shock can occur.

Upper

Shell

Fan

Guard

Upper

Shell

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