Sunbelt SPK70000 Manuel utilisateur

OPERATOR’S MANUAL FOR

SPK70000, SPK115000

AND SPK165000

SPAcE hEATERS

120039-01

®

C US

2 Operator’s Manual

Introduction

THANK YOU for purchasing this product.

READ THIS MANUAL carefully to learn how to operate

and service your machine correctly. Failure to do so

could result in personal injury or equipment damage.

This manual and safety signs on your machine may

also be available in other languages. (See your dealer

to order.)

THIS MANUAL SHOULD BE CONSIDERED a

permanent part of your machine and should remain

with the machine when you sell it.

MEASUREMENTS in this manual are given in both

metric and customary U.S. unit equivalents. Use only

correct replacement parts and fasteners. Metric and

inch fasteners may require a specic metric or inch

wrench.

RIGHT HAND AND LEFT HAND sides are determined

by facing the motor end of the machine.

The SERIAL NUMBER is located in the Specication

or Identication Numbers section. Accurately record

all the numbers to help in tracing the machine should

it be stolen. Your dealer also needs these numbers

when you order parts. File the identication numbers

in a secure place off the machine.

WARRANTY is provided from your dealer for

customers who operate and maintain their equipment

as described in this manual. The warranty is explained

on the warranty certicate shown in this manual.

This warranty provides you the assurance that your

dealer will back products where defects appear

within the warranty period. Should the equipment

be abused, or modied to change its performance

beyond the original factory specications, the warranty

will become void.

Operator’s Manual 3

Contents

Page

Safety ........................................................................ 4

Controls ................................................................. 10

Assembly .................................................................. 11

Preparation ............................................................... 12

Operation ................................................................ 14

Troubleshooting ..................................................... 16

Service .................................................................... 18

Storage .................................................................... 25

Specications ......................................................... 26

Wire Diagram ............................................................ 27

Warranty .................................................................. 28

Notes ........................................................................ 29

All information, illustrations and specications in this manual are based on the latest

information available at the time of publication. The right is reserved to make changes at any

time without notice.

4 Operator’s Manual

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Safety

RECOGNIZE SAFETY INFORMATION

This is the safety alert symbol. When you see this

symbol on your machine or in this manual, be alert to

the potential for personal injury.

Follow recommended precautions and safe operating

practices.

UNDERSTAND SIGNAL WORDS

A signal word--DANGER, WARNING or CAUTION--is

used with the safety-alert symbol. DANGER identies

the most serious hazards.

DANGER or WARNING safety signs are located near

specic hazards. General precautions are listed on

CAUTION safety signs. CAUTION also calls attention

to safety messages in this manual.

FOLLOW SAFETY INSTRUCTIONS

Carefully read all safety messages in this manual and on

your machine safety signs. Keep safety signs in good

condition. Replace missing or damaged safety signs.

Be sure new equipment components and repair parts

include the current safety signs. Replacement safety

signs are available from your dealer.

Read this owner’s manual carefully and completely before

trying to assemble, operate, or service this space heater.

Improper use of this space heater can cause serious injury

or death from burns, re, explosion, electrical shock, and

carbon monoxide poisoning.

Make certain you read and understand all warnings.

Keep this manual for reference. It is your guide to safe

and proper operation of this space heater.

If you do no understand any part of this manual and need

assistance, contact your dealer.

Operator’s Manual 5

CARBON MONOXIDE - POISONOUS GAS

DANGER: CARBON MONOXIDE POISONING MAY LEAD TO

DEATH!

Space heaters exhaust contains carbon monoxide - a poisonous gas

that can kill you. You CAN NOT smell or see this gas.

Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning

resemble the ﬂu, with headaches, dizziness, and/or nausea. If you have

these signs, the space heater may not be working properly. Get fresh air at

once! Have space 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.

Never use a space heater in enclosed or partially-enclosed spaces without

proper ventilation. Use only in well-vented areas. Before using space 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. Space heaters can

produce high levels of carbon monoxide very quickly. When you use a space

heater, remember that you cannot smell or see carbon monoxide. Even if you

can’t smell exhaust fumes, you may still be exposed to carbon monoxide.

If you start to feel sick, dizzy, or weak while using a space heater, get to fresh

air RIGHT AWAY. DO NOT DELAY. The carbon monoxide from space heaters

can rapidly lead to full incapacitation and death.

If you experience serious symptoms, get medical attention immediately.

Inform medical staff that carbon monoxide poisoning is suspected. If you

experienced symptoms while indoors, have someone call the re department

to determine when it is safe to re-enter the building.

NEVER operate the space heater in an explosive atmosphere, near

combustible materials or where ventilation is not sufcient to carry away

exhaust fumes. Exhaust fumes can cause serious injury or death.

NEVER run space heaters inside homes, garages, sheds, or other semi-

enclosed spaces without proper ventilation. These spaces can trap poisonous

gases EVEN IF you run a fan or open doors and windows. Use only in well-

vented areas. Before using space 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.

If you start to feel sick, dizzy, or weak while using the space heater, shut

if off and get fresh air RIGHT AWAY. See a doctor. You may have carbon

monoxide poisoning.

Install battery-operated carbon monoxide alarms or plug-in carbon monoxide

alarms with battery back-up in your home, according to the manufacturer’s

installation instructions. The carbon monoxide alarms should be certied to

the requirements of the latest safety standards for carbon monoxide alarms.

(UL 2034, IAS 6-96, or CSA 6.19.01).

Test your carbon monoxide alarm frequently and replace dead batteries.

6 Operator’s Manual

SAFETY WARNING WHEN REFUELING

Use only kerosene, #1#2 diesel / fuel oil, JET A or JP-8 fuels to

avoid risk of re or explosion. Never use gasoline, naphtha, paint

thinners, alcohol, or other highly ﬂammable fuels.

Personnel involved with fueling shall be qualied and thoroughly

familiar with the manufacturer’s instructions and applicable

regulations regarding the safe fueling of heating units.

Only the type of fuel specied on the space heater’s data plate

shall be used.

All ﬂame, including the pilot light, if any, shall be extinguished and

the space heater allowed to cool, prior to fueling.

During fueling, all fuel lines and fuel-line connections shall be

inspected for leaks. Any leaks shall be repaired prior to returning

the space heater to service.

At no time shall more than one day’s supply of space heater fuel

be stored inside a building in the vicinity of the space heater. Bulk

fuel storage shall be outside the structure.

All fuel storage shall be located a minimum of 25 feet (762cm) from

space heaters, torches, welding equipment, and similar sources

of ignition (exception: the fuel reservoir integral with the space

heater unit).

Whenever possible, fuel storage shall be conned to areas where

ﬂoor penetrations do not permit fuel to drip onto or be ignited by

a re at lower elevation.

Fuel storage shall be in accordance with the authority having

jurisdiction.

Observe all safety regulations for the safe handling of fuel.

Handle fuel in safety containers. If the container does not have a

spout, use a funnel.

Do not overll the fuel tank, leave room for the fuel to expand.

Do not rell fuel tank while the unit is running. Before refueling

the space heater, turn it off and let it cool down.

Fill the tank only on an area of bare ground. While fueling the

tank, keep heat, sparks and open ﬂame away. Carefully clean

up any spilled fuel before starting the unit.

Always ll fuel tank in an area with plenty of ventilation to avoid

inhaling dangerous fumes.

NEVER store fuel for your space heater in the home. Gasoline,

propane, kerosene, and other ﬂammable liquids should be stored

outside of living areas in properly-labeled, non-glass safety

containers. Do not store them near a fuel-burning appliance, such

as a natural gas water heater in a garage. If the fuel is spilled or

the container is not sealed properly, invisible vapors from the fuel

can travel along the ground and can be ignited by the appliance’s

pilot light or by arcs from electric switches in the appliance.

Operator’s Manual 7

ELECTRICAL HAZARDS

DANGER- IMPROPER CONNECTION OF THE

EQUIPMENT-GROUNDING CONDUCTOR CAN

RESULT IN A RISK OF ELECTROCUTION. CHECK

WITH A QUALIFIED ELECTRICIAN OR SERVICE

PERSON IF YOU ARE IN DOUBT AS TO WHETHER

THE UNIT IS PROPERLY GROUNDED.

Use only the electrical voltage and frequency specied on

model plate.

Space heater must be grounded. Use only a properly

grounded three-wire extension cord. Plug into grounded

outlet only. If it should malfunction or breakdown, grounding

provides a path of least resistance for electric current to

reduce the risk of electric shock.

The space heater is a potential source of electrical shock if

not kept dry. Keep the space heater dry and do not use in

rain or wet conditions. To protect from moisture, operate it

on a dry surface under an open, canopy-like structure. Dry

your hands if wet before touching the space heater.

Check that the entire cord is free of cuts or tears and that

the plug has all three prongs, especially a grounding pin.

8 Operator’s Manual

IMPORTANT SAFETY INSTRUCTIONS

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

content.

2. 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.

3. Locate space heater on a stable and level surface while

hot or operating or a re may occur.

4. Use only in well-vented areas. Before using space

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.

5. Keep children and animals away from space heater at

all times.

6. Never start space heater when combustion chamber is

hot or if fuel has accumulated in combustion chamber.

7. When used with thermostat, space heater may start at

anytime.

8. When space heater is moved or stored, it must be in a

level position or fuel spillage may occur.

9. Use space heater only in accordance with local

ordinances and codes.

10. Never use gasoline, crankcase drainings, naphtha,

paint thinners, alcohol, or other highly ﬂammable

fuels.

11. Never use space heater where gasoline, paint thinner, or

other highly ﬂammable vapors are present.

12. Never use space heater in living or sleeping areas.

13. Never leave a space heater plugged in without adult

supervision if children or animals are likely to be

present.

14. Never move, handle, refuel, or service a hot,

operating, or plugged-in space heater.

15. Never attach duct work to front or rear of space

heater.

16. Never attach space heater to external fuel tank.

17. Space 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 (304.8cm). 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 space heater due to

wind action.

18. Unplug space heater when not in use.

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

space heater.

SAVE THESE INSTRUCTIONS

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Operator’s Manual 9

WEAR PROTECTIVE CLOTHING

Wear close tting clothing and safety equipment appropriate

to the job.

Wear a suitable hearing protective device such as

earmuffs or earplugs to protect against objectionable or

uncomfortable loud noises.

Operating equipment safely requires the full attention of

the operator. Do not wear radio or music headphones while

operating machine.

INSPECT SPACE HEATER

Be sure all covers, guards and shields are tight and in

place.

Locate all operating controls and safety labels.

Inspect power cord for damage before using. There is a

hazard of electrical shock from crushing, cutting or heat

damage.

Remove all packing items applied to space heater for

shipment. Remove all items from carton. Check items for

any shipping damage. If space heater is damaged, promptly

inform dealer where you bought space heater.

PREPARE FOR EMERGENCIES

Keep a rst aid kit and re extinguisher handy.

Keep emergency numbers for doctors, ambulance service,

hospital and re department near your telephone.

Be prepared if a re starts.

SERVICE SPACE HEATER SAFELY

Before servicing the space heater, shut off unit and allow

unit to cool down.

Service space heater in a clean dry ﬂat area.

10 Operator’s Manual

Controls

A -- Hot Air Outlet

B -- Thermostat Knob

C -- Fan Guard

D -- ON / OFF Switch

w/ Light

E -- Ignition Control Assembly

(On Inside of Side Cover)

F -- Side Cover

CONTROLS

A

B

C

D

E

F

G

H

I

A

B

C

DE

F

G

H

A

B

C

D

E

F

G

H

SPK70000

SPK115000

SPK165000

G -- Fuel Cap / Gauge

H -- Fuel Tank

I -- Air Filter End Cover

Operator’s Manual 11

Assembly

ASSEMBLY

NOTE: 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 (Fig. 1).

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

to secure.

3. Place space heater on wheel support frame. Line up

holes on fuel tank ﬂange with holes on wheel support

frame.

4. Place handle(s) on top of fuel tank ﬂange. Insert

screws through handle(s), fuel tank ﬂange, and wheel

support frame. Attach nut, hand tight after each screw

is inserted.

5. After all screws are inserted, tighten nuts rmly.

Wheel Support

Frame

Fuel

Tank

Flange

Cap Nut

Wheel

Nut

Axle

Extended

Hub

Air

Inlet

Handle

Hot Air

Outlet

Screw

Wheel Spacer

(If Provided)

Cord Cleat with

Bolts and Nuts

Handle

(Fig. 1)

12 Operator’s Manual

Preparation

VENTILATION

WARNING: PROVIDE A FRESH AIR OPENING OF

AT LEAST THREE SQUARE FEET (2,800 SQUARE

CM) FOR EACH 100,000 BTU / HR RATING.

PROVIDE EXTRA FRESH AIR IF MORE

SPACE 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 SPACE HEATER.

Example: A 200,000 Btu / Hr (58.6kw) space heater

requires one of the following:

• a two-car garage door [16 feet (4.88 meter) opening]

raised 5 inches (12.7 cm)

• a single-car garage door [9 feet (2.74 meter) opening]

raised 8 inches (20.3 cm)

• two, 30 inch (76.2 cm) windows raised 15 inches

(38.1 cm)

FUELS

WARNING: USE ONLY KEROSENE, #1/#2 DIESEL/

FUEL OIL, JET A OR JP8 FUELS TO AVOID RISK

OF FIRE OR EXPLOSION. NEVER USE GASOLINE,

OIL DRAINED FROM CRANKCASES, NAPHTHA,

PAINT THINNERS, ALCOHOL OR OTHER HIGHLY

FLAMMABLE FUELS.

Use only kerosene, #1/#2 diesel / fuel oil, JET A or JP-8 fuels.

Heavier fuels such as No. 2 fuel oil or No. 2 diesel fuel may

also be used but will result in:

• noticeable odor

• additional fuel lter maintenance

• the need for nontoxic, anti-icer additives in very cold

weather

Do not use fuels heavier than No. 2 grade or heavy oils such

as oil drained from crankcases. These heavy oils will not

ignite properly and will contaminate the space heater.

IMPORTANT: Use a KEROSENE ONLY (blue) or DIESEL

ONLY (yellow) storage container. Be sure storage container

is clean. Foreign matter such as rust, dirt, or water will cause

the ignition control assembly to shut down space heater.

Foreign matter may also require space heater’s fuel system

to be frequently cleaned.

Preparation

Operator’s Manual 13

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 ne 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 space heater to shut down if the ﬂame goes out.

Clean

Heated

Air Out

Fuel

Filter

Air Line

To Burner

Air Output Filter

Air Pump

Air Intake Filter

Cool Air In

Fan

Combustion

Chamber

Ignitor

Ignition Co ntrol

Assembly

Air For Fuel

System

Air For

Combustion

And Heatin g

Fuel

Nozzle

Fuel

Tank

Motor

14 Operator’s Manual

Operation

OPERATION

IMPORTANT: Review and understand the warnings in

the Safety Information section. They are needed to safely

operate this space heater. Follow all local ordinances and

codes when using this space heater.

START SPACE HEATER:

1.

Follow all ventilation and safety information.

2. Place the space heater in an area that provides

maximum circulation of the heated air. Follow all location

requirements noted in the Safety Information.

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 space 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

2

)

rated cord

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

(1.0 mm

2

) rated cord

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

(1.5 mm

2

) rated cord

7.

Plug extension cord into standard 120 volt / 60 hertz, 3-

prong grounded outlet. Push ON / OFF switch to ON(|)

position and space heater should start in 5 seconds.

(Fig. 2 & 3) If space heater does not start, see

Troubleshooting.

8. Adjust thermostat knob to the desired setting.

Note: A cold space heater may affect the thermostat

setting. This thermostat is a general-heating control.

It is not intended for precise temperature control.

Adjust thermostat until space heater cycles at the

desired setting.

ON/OFF

Switch with

Light

(Fig. 3)

Model: 70

ON/OFF

Switch with

Light

Models: 115 / 165

(Fig. 2)

Operation

Operator’s Manual 15

OPERATION

STOP SPACE HEATER:

Push ON / OFF switch to OFF (O) position. Unplug space

heater when not in use.

16 Operator’s Manual

No power to space heater.

ON / OFF switch not in the ON(|)

position.

Thermostat setting is too low.

Bad electrical connection between

motor and ignition control

assembly or ignition control

assembly and power cord.

Binding pump rotor.

Defective ignition control

assembly.

Defective motor.

Blown fuse or ignitor control

assembly.

Check circuit breaker in electrical

panel.

Verify the ON / OFF switch is in

ON (|) position and light is on.

Turn thermostat knob to a higher

setting.

Check all electrical connections.

If fan does not turn freely, see

"Maintenance: Pump Rotor".

Replace ignition control

assembly.

Replace motor.

See "Maintenance: Ignition

Control Assembly".

Troubleshooting

WARNING: HIGH VOLTAGE. NEVER SERVICE SPACE HEATER WHILE IT IS PLUGGED IN,

OPERATING, OR HOT. SEVERE BURNS AND ELECTRICAL SHOCK CAN OCCUR.

Symptom Problem Solution

Motor does not start ve

seconds after space heater is

plugged in.

Troubleshooting

Operator’s Manual 17

Symptom Problem Solution

Motor starts and runs but

space heater does not

ignite

Space heater ignites but

ignition control assembly

shuts space heater off after

a short period of time.

No fuel in tank.

Pump pressure incorrect.

Dirty fuel lter.

Obstruction in nozzle.

Water in fuel tank.

Bad electrical connection

between ignitor and ignition

control assembly.

Defective ignitor.

Defective ignition control

assembly.

Pump pressure incorrect.

Dirty air intake, air output, and/or

lint lter.

Dirty fuel lter.

Obstruction in nozzle.

Photocell assembly not properly

installed (not seeing the ﬂame).

Dirty photocell lens.

Bad electrical connection

between photocell and ignition

control assembly.

Defective photocell.

Defective ignition control

assembly.

Fill tank with kerosene.

See "Maintenance: Pump

Pressure Adjustment".

See "Maintenance: Fuel Filter".

See

"Maintenance:

Nozzle

Assembly".

Drain and ﬂush fuel tank with

clean kerosene.

Check electrical connections.

Replace ignitor, see

"Maintenance: Ignitor".

Replace ignition control

assembly.

See "Maintenance: Pump

Pressure Adjustment".

See "Maintenance: Air Output,

Air Intake, and Lint Filters".

See "Maintenance: Fuel Filter".

See

"Maintenance:

Nozzle

Assembly".

Make sure photocell boot is

properly seated in bracket.

Clean photocell lens.

Check electrical connections.

Replace photocell.

Replace ignition control

assembly.

WARNING: HIGH VOLTAGE. NEVER SERVICE SPACE HEATER WHILE IT IS PLUGGED IN,

OPERATING, OR HOT. SEVERE BURNS AND ELECTRICAL SHOCK CAN OCCUR.

18 Operator’s Manual

Service

Fuel tank

Air output and lint

lters

Air intake lter

Fuel lter

Ignitor

Fan blades

Motor

Flush every 150-200 hours of

operation or as needed.

Replace every 500 hours of

operation or once a year.

Wash and dry with soap and

water every 500 hours of opera-

tion or as needed.

Clean twice a heating season or

as needed.

No maintenance required.

Clean every season or as

needed.

Not required / permanently

lubricated.

See "Storage: Storing,

Transporting, or Shipping".

See "Maintenance: Air Output,

Air Intake, and Lint Filters".

See "Maintenance: Air Output,

Air Intake, and Lint Filters".

See "Maintenance: Fuel Filter".

See "Maintenance: Fan".

Item How Often How to

MAINTENANCE

PREVENTATIVE MAINTENANCE SCHEDULE:

WARNING: HIGH VOLTAGE. NEVER SERVICE SPACE HEATER WHILE IT IS PLUGGED IN, OPERATING,

OR HOT. SEVERE BURNS AND ELECTRICAL SHOCK CAN OCCUR.

Service

Operator’s Manual 19

WARNING: TO AVOID RISK OF BURN AND

ELECTRICAL SHOCK, NEVER ATTEMPT

TO SERVICE SPACE HEATER WHILE IT IS

PLUGGED IN, OPERATING, OR HOT.

UPPER SHELL REMOVAL:

1. Remove screws along each side of space heater using

5/16" nut-driver. These screws attach upper and lower

shells together. (Fig. 4 or 5)

2. Lift upper shell off.

3. Remove fan guard.

FAN:

IMPORTANT: Remove fan from motor shaft before

removing motor from space heater. The weight of the

motor resting on the fan could damage the fan pitch.

(Fig. 6)

1. Remove upper shell. (Fig. 4 or 5)

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. Replace fan on motor shaft. Place fan hub ﬂush with

end of motor shaft. (Fig. 7)

7. Place setscrew on ﬂat of shaft. Tighten setscrew rmly

(40-50 inch-pounds / 4.5-5.6 n-m).

8. Replace fan guard and upper shell.

MAINTENANCE (CONTINUED):

(Fig. 4)

(Fig. 5)

Upper Shell

Fan Guard

Screw

Model: 70

Fan

Guard

Upper Shell

Screw

Models: 115 / 165

Motor Shaft

Setscrew

Fan

Motor

Shaft

Fan

Setscrew

Flush

Motor

(Fig. 6)

(Fig. 7)

Service

20 Operator’s Manual

AIR OUTPUT, AIR INTAKE AND LINT FILTERS:

1. Remove upper shell. (Fig. 4 or 5)

2.

Remove lter end cover screws using 5/16" nut-driver.

(Fig. 8 or 9)

3. Remove lter end cover.

4. Replace air output and lint lters.

5. Wash or replace air intake lter (see "Preventative

Maintenance Schedule").

6. Replace lter end cover.

7. Replace fan guard and upper shell.

IMPORTANT: Do not oil lters.

PUMP PRESSURE ADJUSTMENT:

1. Remove pressure gauge plug from lter end cover

(Fig. 10).

2. Install a pressure gauge.

3. Start space heater (See "Operation"). 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

(Fig. 11). See specications below for correct pressure

for each model.

Model: Pump Pressure:

70 4.7 PSI

115 5.1 PSI

165 5.6 PSI

5. Remove pressure gauge. Replace pressure gauge plug

in lter end cover.

MAINTENANCE (CONTINUED)

:

(Fig. 9)

Air Intake Filter

Lint Filter

Filter End

Cover

Air Output Filter

Model: 70

Air Intake Filter

Filter

End

Cover

Lint Filter

Air Output Filter

Models: 115 / 165

(Fig. 8)

Pressure

Gauge

Plug

Relief

Valve

Model: 70 Shown

(Fig. 10)

Pressure

Gauge

Model: 70 Shown

(Fig. 11)

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