Itw A11065-05 User manual

SERVICE MANUAL

LN-9245-00.6LN-9245-00.6

LN-9245-00.6

(Replaces LN-9245-00.5)

February - 2008

AIR HEAAIR HEA

AIR HEATER ASSEMBLTER ASSEMBL

TER ASSEMBLTER ASSEMBL

TER ASSEMBLYY

YY

Y

MODEL: A1MODEL: A1

MODEL: A11065-051065-05

1065-051065-05

1065-05

IMPORIMPOR

IMPORTT

TT

TANTANT

ANTANT

ANT: Before using this equipment,: Before using this equipment,

: Before using this equipment,: Before using this equipment,

: Before using this equipment,

carefully read SAFETY PRECAUTIONS,carefully read SAFETY PRECAUTIONS,

carefully read SAFETY PRECAUTIONS,

starting on page 1, and all instructions in thisstarting on page 1, and all instructions in this

starting on page 1, and all instructions in this

manual. Keep this Service Manual for futuremanual. Keep this Service Manual for future

manual. Keep this Service Manual for future

reference.reference.

reference. Service Manual Price:Service Manual Price:

Service Manual Price:Service Manual Price:

Service Manual Price: €15.00 (Euro)15.00 (Euro)

15.00 (Euro)15.00 (Euro)

15.00 (Euro)

$20.00 (U.S.)$20.00 (U.S.)

$20.00 (U.S.)

LN-9245-00.6

NOTE:NOTE:

NOTE: This manual has been changed from revision LN-9245-00.5LN-9245-00.5

LN-9245-00.5LN-9245-00.5

LN-9245-00.5 to revision LN-9245-00.6LN-9245-00.6

LN-9245-00.6LN-9245-00.6

LN-9245-00.6

Reasons for this change are noted under “Manual Change Summary” inside the back

cover of this manual.

LN-9245-00.6

SAFETY:SAFETY:

SAFETY:

SAFETY PRECAUTIONS............................................................................................................

HAZARDS / SAFEGUARDS........................................................................................................

PAGEPAGE

PAGE

INTRODUCTION:INTRODUCTION:

INTRODUCTION:

CONTENTSCONTENTS

CONTENTS

GENERAL DESCRIPTION..........................................................................................................

FEATURES AND BENEFITS......................................................................................................

SPECIFICATIONS.......................................................................................................................

INSTALLATION:INSTALLATION:

INSTALLATION:

LOCATION...................................................................................................................................

INPUT POWER............................................................................................................................

PNEUMATIC CONNECTIONS...................................................................................................

INSTALLATION OPTIONS..........................................................................................................

FRONT PANEL DISPLAY AND FUNCTIONS...........................................................................

OPERATION:OPERATION:

OPERATION:

PRINCIPLES OF OPERATION...................................................................................................

WIRING DIAGRAM SCHEMATIC...............................................................................................

POWER AND CONTROL WIRING DIAGRAM..........................................................................

START-UP....................................................................................................................................

1-41-4

1-4

5-65-6

5-6

7-127-12

7-12

13-1613-16

13-16

1

2-4

5

6

7

7-8

8-9

10-11

13

14

15

16

Air Heater Assembly - Contents

PARTS IDENTIFICATION:PARTS IDENTIFICATION:

PARTS IDENTIFICATION:

A110065-05 AIR HEATER ASSEMBLY / PARTS LIST..............................................................

ACCESSORIES...........................................................................................................................

19-2019-20

19-20

20

WARRANTY POLICIES:WARRANTY POLICIES:

WARRANTY POLICIES: 2121

2121

21

LIMITED WARRANTY..................................................................................................................21

MAINTENANCE:MAINTENANCE:

MAINTENANCE:

HEATER REMOVAL....................................................................................................................

TROUBLESHOOTING GUIDE....................................................................................................

17-1817-18

17-18

17

18

LN-9245-00.6

SAFETY PRECAUTIONSSAFETY PRECAUTIONS

SAFETY PRECAUTIONS

Before operating, maintaining or servicing any

ITW Ransburg electrostatic coating system, read

and understand all of the technical and safety

literature for your ITW Ransburg products. This

manual contains information that is important for

you to know and understand. This information

relates to USER SAFETY and PREVENTING

EQUIPMENT PROBLEMS. To help you recognize

this information, we use the following symbols.

Please pay particular attention to these sections.

A WARNING! states information to alert youA WARNING! states information to alert you

A WARNING! states information to alert you

to a situation that might cause serious injuryto a situation that might cause serious injury

to a situation that might cause serious injury

if instructions are not followed.if instructions are not followed.

if instructions are not followed.

A CAUTION! states information that tellsA CAUTION! states information that tells

A CAUTION! states information that tells

how to prevent damage to equipment or howhow to prevent damage to equipment or how

how to prevent damage to equipment or how

to avoid a situation that might cause minorto avoid a situation that might cause minor

to avoid a situation that might cause minor

injury.injury.

injury.

A NOTE is information relevant to theA NOTE is information relevant to the

A NOTE is information relevant to the

procedure in progress.procedure in progress.

procedure in progress.

While this manual lists standard specifications

and service procedures, some minor deviations

may be found between this literature and your

equipment. Differences in local codes and plant

requirements, material delivery requirements, etc.,

make such variations inevitable. Compare this

manual with your system installation drawings

and appropriate ITW Ransburg equipment

manuals to reconcile such differences.

Careful study and continued use of this manual will

provide a better understanding of the equipment

and process, resulting in more efficient operation,

longer trouble-free service and faster, easier

troubleshooting. If you do not have the manuals

and safety literature for your Ransburg system,

contact your local ITW Ransburg representative

or ITW Ransburg.

SAFETYSAFETY

SAFETY

Air Heater Assembly - Safety

> The user MUSTMUST

MUSTMUST

MUST read and be familiar

with the Safety Section in this manual and

the ITW Ransburg safety literature therein

identified.

>This manual MUSTMUST

MUSTMUST

MUST be read and thor-

oughly understood by ALLALL

ALLALL

ALL personnel who

operate, clean or maintain this equipment!

Special care should be taken to ensure that

the WARNINGSWARNINGS

WARNINGSWARNINGS

WARNINGS and safety requirements

for operating and servicing the equipment

are followed. The user should be aware of

and adhere to ALLALL

ALLALL

ALL local building and fire

codes and ordinances as well as NFPA-NFPA-

NFPA-NFPA-

NFPA-

33 SAFETY STANDARD,33 SAFETY STANDARD,

33 SAFETY STANDARD, prior to

installing, operating, and/or servicing this

equipment.

W A R N I N GW A R N I N G

W A R N I N G

!!

!

> The hazards shown on the following

page may occur during the normal use of

this equipment. Please read the hazard

chart beginning on page 2.

W A R N I N GW A R N I N G

W A R N I N G

!!

!

11

1

LN-9245-00.6

Air Heater Assembly - Safety

22

2

AREAAREA

AREA

Tells where hazards

may occur.

HAZARDHAZARD

HAZARD

Tells what the hazard is.

SAFEGUARDSSAFEGUARDS

SAFEGUARDS

Tells how to avoid the hazard.

Spray AreaSpray Area

Spray Area Fire Hazard

Improper or inadequate operation

and maintenance procedures will

cause a fire hazard.

Protection against inadvertent

arcing that is capable of causing

fire or explosion is lost if any

safety interlocks are disabled

during operation. Frequent power

supply shutdown indicates a

problem in the system requiring

correction.

Fire extinguishing equipment must be present in the

spray area and tested periodically.

Spray areas must be kept clean to prevent the

accumulation of combustible residues.

Smoking must never be allowed in the spray area.

The high voltage supplied to the atomizer must be

turned off prior to cleaning, flushing or maintenance.

When using solvents for cleaning:

Those used for equipment flushing should have flash

points equal to or higher than those of the coating

material.

Those used for general cleaning must have flash

points above 100oF (37.8oC).

Spray booth ventilation must be kept at the rates

required by NFPA-33, OSHA, and local codes. In

addition, ventilation must be maintained during

cleaning operations using flammable or combustible

solvents.

Electrostatic arcing must be prevented.

Test only in areas free of combustible material.

Testing may require high voltage to be on, but only as

instructed.

Non-factory replacement parts or unauthorized

equipment modifications may cause fire or injury.

If used, the key switch bypass is intended for use only

during setup operations. Production should never be

done with safety interlocks disabled.

Never use equipment intended for use in waterborne

installations to spray solvent based materials.

The paint process and equipment should be set up

and operated in accordance with NFPA-33, NEC, and

OSHA requirements.

LN-9245-00.6

Air Heater Assembly - Safety

33

3

AREAAREA

AREA

Tells where hazards

may occur.

HAZARDHAZARD

HAZARD

Tells what the hazard is.

SAFEGUARDSSAFEGUARDS

SAFEGUARDS

Tells how to avoid the hazard.

ElectricalElectrical

Electrical

EquipmentEquipment

Equipment

High voltage equipment is utilized.

Arcing in areas of flammable or

combustible materials may occur.

Personnel are exposed to high

voltage during operation and

maintenance.

Protection against inadvertent

arcing that may cause a fire or

explosion is lost if safety circuits

are disabled during operation.

Frequent power supply shut-down

indicates a problem in the system

which requires correction.

An electrical arc can ignite coating

materials and cause a fire or

explosion.

The power supply, optional remote control cabinet,

and all other electrical equipment must be located

outside Class I or II, Division 1 and 2 hazardous

areas. Refer to NFPA-33.

Turn the power supply OFF before working on the

equipment.

Test only in areas free of flammable or combustible

material.

Testing may require high voltage to be on, but only

as instructed.

Production should never be done with the safety

circuits disabled.

Before turning the high voltage on, make sure no

objects are within the sparking distance.

Explosion Hazard /Explosion Hazard /

Explosion Hazard /

IncompatibleIncompatible

Incompatible

MaterialsMaterials

Materials

Halogenated hydrocarbonsolvents

for example: methylene chloride

and 1,1,1,-Trichloroethane are not

chemically compatible with the

aluminum that might be used in

many system components. The

chemical reaction caused by these

solvents reacting with aluminum

can become violent and lead to an

equipment explosion.

Aluminum is widely used in other spray application

equipment - such as material pumps, regulators,

triggering valves, etc. Halogenated hydrocarbon

solvents must never be used with aluminum

equipment during spraying, flushing, or cleaning.

Read the label or data sheet for the material you

intend to spray. If in doubt as to whether or not a

coating or cleaning material is compatible, contact

your material supplier. Any other type of solvent may

be used with aluminum equipment.

Improperoperationormaintenance

may create a hazard.

Personnelmust be properlytrained

in the use of this equipment.

Personnel must be given training in accordance with

the requirements of NFPA-33.

Instructions and safety precautions must be read and

understood prior to using this equipment.

Comply with appropriate local, state, and national

codes governing ventilation, fire protection, operation

maintenance, and housekeeping. Reference OSHA,

NFPA-33,andyour insurance companyrequirements.

General Use andGeneral Use and

General Use and

MaintenanceMaintenance

Maintenance

LN-9245-00.6

Air Heater Assembly - Safety

44

4

AREAAREA

AREA

Tells where hazards

may occur.

HAZARDHAZARD

HAZARD

Tells what the hazard is.

Toxic SubstancesToxic Substances

Toxic Substances Follow the requirements of the Material Safety Data

Sheet supplied by coating material manufacturer.

Adequate exhaust must be provided to keep the air

free of accumulations of toxic materials.

Use a mask or respirator whenever there is a chance

of inhaling sprayed materials. The mask must be

compatible with the material being sprayed and its

concentration. Equipment must be as prescribed by

an industrial hygienist or safety expert, and be

NIOSH approved.

SAFEGUARDSSAFEGUARDS

SAFEGUARDS

Tells how to avoid the hazard.

Certain material may be harmful if

inhaled, or if there is contact with

the skin.

LN-9245-00.6

GENERAL DESCRIPTIONGENERAL DESCRIPTION

GENERAL DESCRIPTION

In automated finishing applications, the expansion

of pressurized air causes cooling which may

result in condensation on surfaces of electrostatic

applicators. The ITW Ransburg

Air HeaterAir Heater

Air Heater

AssemblyAssembly

Assembly

is designed to reduce or eliminate

condensation that may form in or on the ITW

Ransburg TurboDisk and Rotary Atomizers, or

other pressurized applicators under certain

operating conditions.

Ambient temperature and relative humidity in most

installations is hard to maintain. The Air Heater

Assembly is designed to maintain the temperature

of your operating air supply to ensure no moisture

or condensation will occur on/in the applicator or

its feed or exhaust lines. This helps reduce high

voltage faults and rejected parts due to excess

moisture issues.

FEAFEA

FEATURES ANDTURES AND

TURES ANDTURES AND

TURES AND

BENEFITSBENEFITS

BENEFITS

•

Heats up quickly and accuratelyHeats up quickly and accurately

Heats up quickly and accurately

- Allows

system users to ramp up production in a mini-

mum of time.

•

Self containedSelf contained

Self contained

- Small, compact cabinet fea-

tures plug'n play components making it easy

to fit into existing systems or add into planned

system designs.

•

Cabinet is "touch-safe"Cabinet is "touch-safe"

Cabinet is "touch-safe"

- Exterior of the

heater is cool to the touch.

•

Precision controlPrecision control

Precision control

- Provides users with ac-

curate temperature feedback via audible and

visual displays and alarms.

INTRODUCTIONINTRODUCTION

INTRODUCTION

Air Heater Assembly - Introduction

55

5

•

Heats drive-air to optimum temperatureHeats drive-air to optimum temperature

Heats drive-air to optimum temperature

-

Heats as required to keep rotator housing

warm enough to prevent condensation by

maintaining exhaust temperatures above the

dew point.

• The actual heater process setting depends on

applicator fluid flow rate, booth conditions, air

flow, inlet and ambient air temperatures. The

heater should be set as low as possible, sufficient

to maintain the applicator surface temperatures

above the dewpoint of the booth environment.

LN-9245-00.6

Air Heater Assembly - Introduction

66

6

SPECIFICASPECIFICA

SPECIFICATIONSTIONS

TIONSTIONS

TIONS

Dimensions:Dimensions:

Dimensions:

16.5-inch H X 10.31-inch W X 5.5-inch D

41.91 cm H X 26.18 cm W X 13.97 cm D

Weight:Weight:

Weight: 23 lbs./10.43 kilograms

Air Inlet & Outlet:Air Inlet & Outlet:

Air Inlet & Outlet: 1/2-inch NPT Pipe Thread

Environmental / PhysicalEnvironmental / Physical

Environmental / Physical

Input/Dual Voltage:Input/Dual Voltage:

Input/Dual Voltage: 120/240 VAC

+ 10%/15 amps/50-60 hertz

Single Phase

(J1 / J2 jumpers prewired @

240 VAC)

ElectricalElectrical

Electrical

Air SupplyAir Supply

Air Supply

Pressure:Pressure:

Pressure: 150 psi (1034 kPa)

maximum

Air Flow:Air Flow:

Air Flow: 1 SCFM (141.6 SLPM)

minimum

60 SCFM maximum

(1699.0 Liter/minimum)

Filtration:Filtration:

Filtration: 50 micron

(Additional filtration may be

required depending on

applicator used. Refer to

an "Applicator Manual" for

required filtration.)

Air TemperatureAir Temperature

Air Temperature

Output Range:Output Range:

Output Range: 50°F to 150°F

(10°C to 66°C)

Mounting Location:Mounting Location:

Mounting Location: Non-hazardous location

MechanicalMechanical

Mechanical

Air Flow and Pressure DropAir Flow and Pressure Drop

Air Flow and Pressure Drop

ComparisonsComparisons

Comparisons

A11065-05 HEATER

PRESSURE DROP @

85 PSI INLET FLOWING

0

1

2

3

4

5

0 10203040506070

AIR FLOW-SCFM

PRESSURE DROP-PSIG

LN-9245-00.6

Air Heater Assembly - Installation

77

7

LOCALOCA

LOCATIONTION

TIONTION

TION

INSTINST

INSTALLAALLA

ALLAALLA

ALLATIONTION

TIONTION

TION

Install the air heater near the applicator, but in an

area outside of the hazardous location. The unit

should be located so that it is not exposed to water,

paints or solvents, and high temperatures. (The

ambient temperature should not exceed 120°F.)

INPUT POWERINPUT POWER

INPUT POWER

Input supply voltage connection should be made

from a fused disconnect. Route the input power

wires through the side of the cabinet. Generally,

conduit should be used for the input power.

(Always comply with national and local electrical

codes.)

PNEUMAPNEUMA

PNEUMATICTIC

TICTIC

TIC

CONNECTIONSCONNECTIONS

CONNECTIONS

Use appropriate size piping to connect the air

heater to a filtered inlet source. The air heater

compressed air input is at the bottom of the unit

and is identified as "IN". Connect the heated air

output located at the top of the unit identified as "hot

outlet pipe" to the coating applicator(s) using 1/2-

inch OD, nylon 11/12-inch tubing, with proper

pressure rating.

A secondary sensing air supply must be connected

to the pressure switch [8] through 1/4-inch OD

tube fitting [29].

If the unit is being wired directly to the PLC

electrical connections, the pressure switch must

be by-passed. (Refer to "Figure 1: Installation

Options" for assistance.)

> The air heater cabinet must be proper-

ly connected to earth ground.

W A R N I N GW A R N I N G

W A R N I N G

!!

!

> Do not locate the unit near or adjacent

to heat producing equipment such as

oven, high wattage lamps, steam pipes,

etc.

C A U T I O NC A U T I O N

C A U T I O N

!!

!

> The air heater MUSTMUST

MUSTMUST

MUST be located

outsideoutside

outside of any hazardous area(s) as

close to applicator as possible. (See

NFPA-33.)

> This manual must be read and thor-

oughly understood by ALLALL

ALLALL

ALL personnel who

operate, clean, or maintain this equipment.

Special care should be taken to ensure

that the WARNINGSWARNINGS

WARNINGSWARNINGS

WARNINGS and requirements

for operating and servicing are safely

followed.

W A R N I N GW A R N I N G

W A R N I N G

!!

!

> All hardware and tubing used between

the air heater and applicator must have

proper working pressure (150 psig) and

temperature (150°F) ratings.

W A R N I N GW A R N I N G

W A R N I N G

!!

!

LN-9245-00.6

Air Heater Assembly - Installation

88

8

> Recommended air filtration for the air

heater is 50 micron and must be free of

oil. Additional filtration may be required

depending on applicator used. (Refer to

Applicator manual for required filtration.)

NOTENOTE

NOTE

> DO NOTDO NOT

DO NOTDO NOT

DO NOT operate air heater without a

minimum of 1 SCFM of air flow through

the unit.

W A R N I N GW A R N I N G

W A R N I N G

!!

!

INSTINST

INSTALLAALLA

ALLAALLA

ALLATION OPTIONSTION OPTIONS

TION OPTIONSTION OPTIONS

TION OPTIONS

(See Figure 1)(See Figure 1)

(See Figure 1)

Heater Pressure Switch Interlock Options for

Activation:

1. Pilot from one of the following items which

corresponds and signals air is flowing:

a. Volume booster - requires a minimum of 1

psig.

b. PLC pneumatic output - requires a minimum

of 1 psig.

c. Air regulator - requires a minimum of 1 psig.

> Never activate heater without air flow.

C A U T I O NC A U T I O N

C A U T I O N

!!

!

2. Directly from a remote electrical control (such

as a turbine speed control or PLC). This contact

must correspond and signal that air is flowing

through the heater.

This electrical circuit must be connected using a

minimum 1 amp dry contact relay (such as PLC

contact). This can be completed by the following:

1. Remove the present wire from TB8-1.

2. Using a wire nut, connect the wire removed in

step 1 to a longer wire and route to one side of the

remote contact.

3. Run a wire from the other side of the remote

contact back to TB8-1.

4. Add pressure switch changes, A1.

When the remote contact is closed, the air heater

will turn on.

LN-9245-00.6

Air Heater Assembly - Installation

99

9

Figure 1: Installation OptionsFigure 1: Installation Options

Figure 1: Installation Options

LN-9245-00.6

Air Heater Assembly - Installation

1010

10

> Air filters must be located before the

air heater. Heated air may damage air

filters.

> The use of an in-line lubricator before

the air heater is NOTNOT

NOTNOT

NOT recommended. Oil

laden air passing across the heating

elements results in burnt contaminates

which will accumulate and plug applicator

ports. This action may cause premature

atomizer turbine failure.

>It is the user's responsibility toIt is the user's responsibility to

It is the user's responsibility toIt is the user's responsibility to

It is the user's responsibility to

ensure clean air at all times. Fail-ensure clean air at all times. Fail-

ensure clean air at all times. Fail-

ures resulting from contaminated airures resulting from contaminated air

ures resulting from contaminated air

will not be covered under warranty.will not be covered under warranty.

will not be covered under warranty.

C A U T I O NC A U T I O N

C A U T I O N

!!

!

FRONTFRONT

FRONT PP

PP

P

ANELANEL

ANEL DISPLADISPLA

DISPLADISPLA

DISPLAYY

YY

YAND FUNCTIONSAND FUNCTIONS

AND FUNCTIONSAND FUNCTIONS

AND FUNCTIONS

FUJI MICRO CONTROLLER "X", MODEL PXG4FUJI MICRO CONTROLLER "X", MODEL PXG4

FUJI MICRO CONTROLLER "X", MODEL PXG4

LN-9245-00.6

Air Heater Assembly - Installation

1111

11

> Expect alarm light to flash when auto

tuning.

NOTENOTE

NOTE

USER KeyUSER Key

USER Key

Press this key in monitoring mode display or

setup mode display returns you to the PV/SV

display. Pressing this key on the PV/SV display

allows you to set the function for uTey under the

system menu (5Y5 Ch 7). (The factory set

function for this key is switching between auto

and manual.)

SEL KeySEL Key

SEL Key

Switches the PV/SV display to the monitoring

mode display or setup mode display. Switches to

setup mode when parameter display and this key

functions as the select key when changing

parameters. Holding this key down in channel

display or parameter display returns you to the

PV/SV display. Pressing this key at PV/SV

display in manual mode, manual output value is

shown in the lower display.

KeyKey

Key

Pressing once will increase the setting value by

one. Holding down the button will continue to

increase the value. It changes SV on the PV/

SV display. It is also used to move between

items in channel screen display and parameter

screen display.

KeyKey

Key

Pressing once will decrease the setting value

by one. Holding down the button will continue to

decrease the value. It changes SV on the PV/

SV display. It is also used to move between

items in channel screen display and parameter

screen display.

OPERAOPERA

OPERATION PTION P

TION PTION P

TION PARAR

ARAR

ARTSTS

TSTS

TS

DisplayDisplay

Display

C1/C2 LampC1/C2 Lamp

C1/C2 Lamp

Displays the condition of the control output. Lights

ON at 100% output and goes out at 0% output. For

values between 0% and 100%, the output is

indicated by the length of time the lamp flickers.

When acting as a valve control, the C1 lamp will

light with OPEN output, and the CS lamp will flicker

with CLOSE output.

DO1/2/3 LampDO1/2/3 Lamp

DO1/2/3 Lamp

Lights ON when there is digital output is on state

(DO1, DO2, DO3). The lamp flickers when delay

behavior is on.

PV DisplayPV Display

PV Display

Displays the measurement value (PV). Displays

thename ofthe parameter whensetting parameters.

SV DisplaySV Display

SV Display

Displays the set value (SV). Also can display the

output value during manual mode. Displays the

parameter setting value when setting parameters.

Displays (rEN) during remote SV operation and

5oFRand set value alternately during soft start.

SV LampSV Lamp

SV Lamp

Lights when displaying the set value (SV). Goes

out when displaying the manual output value. The

lamp flickers while performing ramp soak or lamp

SV operations.

MAN/AT/SELF LampMAN/AT/SELF Lamp

MAN/AT/SELF Lamp

Normally lights up during manual mode and blinks

during auto-tuning or self-tuning.

DISPLADISPLA

DISPLAYY

YY

Y

LN-9245-00.6

Air Heater Assembly - Installation

1212

12

NOTESNOTES

NOTES

LN-9245-00.6

OPERAOPERA

OPERATIONTION

TIONTION

TION

PRINCIPLES OFPRINCIPLES OF

PRINCIPLES OF

OPERAOPERA

OPERATIONTION

TIONTION

TION

The ITW Air Heater system is shipped as 230V/

1 phase 50/60 Hz operation but can be converted

with simple jumper changes to 115 volt operation.

Heater and controls are contained in a single,

steel NEMA Type 12 enclosure vented to the

atmosphere through access ports for compressed

air delivery.

Three LED indicator lights indicate the status of

the system. Green indicates a "power on"

condition. Red indicates an "alarm condition"

resulting in shutdown of power to the heater.

Amber indicates "insufficient air flow" for safe

operation. The red or amber light remains steady

when ON or can be jumper selected to flash when

ON. In addition, an audible warning option is also

jumper selectable to sound in intermittent warning

when either the red or the amber light is lit.

If an alarm condition occurs such as high

temperature or insufficient air flow, the power to

the heater is interrupted by the safety contactor.

When the alarm condition is removed by the

heater cooling off or the airflow increasing, the

heater will be energized and operate until the

system is turned off or the next alarm condition

occurs.

The heart of the control process is the temperature

controller. Upon startup, or immediately following

the acknowledgement of any alarm condition, the

controller's PID programming provides a fast,

smooth approach to the final temperature set-

point. The PID parameter is set per "Auto-Tuning

Procedure" (see "Controller" manual for "Auto-

Tuning Procedure and all detailed controller

functions").

No cooling is required for the system. Air flow of

at least one (1) SCFM (28.3 SLPM) will satisfy

heater needs.

Air Heater Assembly - Operation

1313

13

NOTESNOTES

NOTES

LN-9245-00.6

Air Heater Assembly - Operation

1414

14

Figure 2: Wiring Diagram SchematicFigure 2: Wiring Diagram Schematic

Figure 2: Wiring Diagram Schematic

LN-9245-00.6

Air Heater Assembly - Operation

1515

15

Figure 3: Power and Control Wiring DiagramFigure 3: Power and Control Wiring Diagram

Figure 3: Power and Control Wiring Diagram

LN-9245-00.6

Air Heater Assembly - Operation

1616

16

STST

STARAR

ARAR

ARTT

TT

T-UP-UP

-UP-UP

-UP

1. Apply main power to unit.

2. Turn on and set air at a minimum of 1 SCFM

with a pneumatic pilot signal to the pressure switch

of at least 1 psig.

3. Adjust temperature to desired setting using

the key pad on face panel (maximum setting is

150°F).

> Heating the drive-air to between 120°F

and 140°F will usually keep the rotator

housing warm enough to prevent conden-

sation. Use ONLYONLY

ONLYONLY

ONLY enough heat to pre-

vent moisture buildup!

NOTENOTE

NOTE

> When turning the air heater off, first

remove power and allow the unit to cool

prior to turning off air flow. Failure to do

so may create excessive heat in the

heating element and may cause perma-

nent damage or reduced service life of

heating element.

C A U T I O NC A U T I O N

C A U T I O N

!!

!

NOTESNOTES

NOTES

4. The unit is now ready for normal operation.

LN-9245-00.6

Air Heater Assembly - Maintenance

1717

17

MAINTENANCEMAINTENANCE

MAINTENANCE

HEAHEA

HEATER REMOVTER REMOV

TER REMOVTER REMOV

TER REMOVALAL

ALAL

AL

When removing the heater from the system, assure

the following:

• The air supply is off and locked out.

• Main supply power is off and locked out.

• The heating element section, attached fittings,

and tubing are cool enough to touch.

NOTESNOTES

NOTES

ITW A11065-05 User manual

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