Edwards TCU 40/80 Instruction Manual

W959-000-01

Revision

F

October,

96

Instruction

Manual

TCU

40/80

Single

Channel

Temperature

Control

Unit

EDWARDS

Edwards

High

Vacuum

International

One

Edwards

Park

301

Ballardvale

Street

Wilmington,MA01887

Telephone:

(508)

658-5410

Telex:

710-347-7672

Fax:

(508)658-7969

Declaration

of

Conformity

We,

Edwards

High

Vacuum

International,

One

Edwards

Park

301

Ballardvale

St.

Wilmington,MA01887

declare

under

our

sole

responsibility

that

the

product(s)

TCU

40/80

Temperature

Control

Unit

W95000000

to

which

this

declaration

relatesisin

confonnity

with

the

following

standard(s)

or

other

normative

document(s)

BSIEC1010-1

BS

EN50O81-1

BSEN50082-1

following

the

provisions

of

89/392/EEC

89/336/EEC

73/023/EEC

Safety

Requirements

for

Electrical

Equipment

for

Measurement,

Control

and

Laboratory

Use.

Electromagnetic

Compatibility,

General

Emission

Standard.

Generic

Standard

Class:

Domestic,

Commercial&Light

Industry.

Electromagnetic

Compatibility,

General

Immunity

Standard.

Generic

Standard

Class:

Domestic,

Commercial&Light

Industry

Machinery

Safety

Directive

Electromagnetic

Compatibility

Directive

Low

Voltage

Directive

0

Dr.A.P.

Troup,

DirectorofTechnology

Date

and

Place

This

product

has

been

manufactured

underaquality

system

registered

to

ISO900I

EDWARDS

CONTENTS

Section

Title

Page

1

PREFACE

1

1.1

Safety

considerations

1

2

TCU

40/80

3

2.1

Scopeofthe

manual

3

2.2

Descriptionofthe

TCU

40/80

3

2.3

Lockout

procedure

3

2.4

Safety

features

4

3

QUICK

START

PROCEDURE

5

3.1

Power

up

5

3.2

Sctpoint

verification

5

4

PRODUCT

DESCRIPTION

6

4.1

Refrigeration

and

coolant

circuits

6

4.2

Refrigeration

9

4.2.1

If

coolingisrequired:

9

4.2.2

If

coolingisnot

required:

10

4.3

Coolant

circuit

10

4.4

Temperature

monitoring

10

4.5

Front panel

1

]

4.6

Rear

panel

13

4.7

Specifications

14

4.8

Dimensions

15

5

INSTALLATION

]6

5.1

Receiving

and

unpacking

16

5.2

Location

16

5.2.1

Securing

the

unit

16

5.2.2 Installing

the

secondary

containment

receptacle

16

5.2.3

Floor

levclers

16

5.3

Stacking

17

5.3.1

Tie-bolts

17

5.4

Facilities

17

5.4.1

Water

and

coolant

connections

18

5.4.2

Water

19

5.4.3

Coolant

19

5.4.4

Remote

connections

19

6

OPERATION

20

6.1

Preparation

20

6.2

Poweringupthe

TCU

40/80

20

6.3

Changing

the

setpoint

value

(SV1)

21

6.4

Temperature

controller

Pid

settings

21

6.5

Remote

set-point

22

6.6

Flow

rate

adjustment

22

/?^v

TCU

40/80

Temperature

Control

Unit

7

MAINTENANCE

23

7.1

Hazard

warnings

23

7.2

Hazards

25

7.3

Filling

the

reservoir

26

7.4

Draining/bleeding

the

coolant

reservoir

26

7.5

Temperature

probe

calibration

27

7.6

Preventive

maintenance

schedule

27

7.7

Semi-annual

preventative

maintenance

28

7.7.1

Required

equipment

28

7.7.2

Preparation

28

7.7.3

Verify

system

status

28

7.7.4

Refrigeration

leak

check

28

7.7.5

Fluorinert

leak

check

28

7.7.6

Water

leak

check

28

7.7.7

Insulation repair

28

7.7.8

Lamp

check/replacement

29

7.8

Annual

preventative

maintenance

30

7.8.1

Required

equipment

30

7.8.2

Required

supplies

30

7.8.3

Solenoid

valve

coil

replacement

30

7.8.4

System

check

32

7.9

Preventive

maintenance

checklist

41

8

TROUBLESHOOTING

42

9

ACCESSORIES

AND

SPARE

PARTS

52

APPENDIX

54

ReturnofEdwards

Equipment-Procedure

(Form

HS1)

58

ReturnofEdwards

Equipment-

Declaration

(FormHS2)

59

Legal

notices,

limitations

and

disclaimers

60

MSDS

(material

safety

data

sheet)-

"SUVA"

HP62

61

'-""5\

TCU

40/80

Temperature

Control

Unit

ILLUSTRATIONS

Figure

Title

Page

Figure1-Refrigeration

and

coolant

components

6

Figure2-

Refrigeration

and

coolant

components

7

Figure3-Refrigeration

and

coolant

circuits

9

Figure4-

Front panel

11

Figure5-

Electrical

rear

panel

13

Figure6-

TCU

dimensions

15

Figure7-Stacked

TCU

40/80

systems

17

Figure

8-System

rear

view

18

Figure9Water

connections

J9

Figure10-

Temperature

controller

21

Figure11-

Lamp

replacement

29

Figure12-

Solenoid

coil

replacement

31

Figure13-Electrical

drawer

51

Figure

14-Electrical

drawer

schematic

54

Figure15-

Remote

interface

56

Table

Title

Page

Table1-

Safety

features

4

Table2

-Frontpanel

Indicators

5

Table3-

Refrigeration

and

coolant

components

8

Table4-

Front

panel

controls

11

Table5-

Front

panel

LED

indicators

12

Table6-

Temperature

controller

12

Table7-

Description

of

rear

panel

components

and

indicators

13

Table8-

Front panel

powerupindicator

conditions

20

Table9-

Electrical

hazards

classifications

25

Table10-

Preventive

maintenance

schedule

27

Table

11-

Faults

identified

by

front

panel

lamps

42

Table12-

Faults

indicated

by

the

front

panel

LED

indicators

44

Table13-Faults

identified

by

rear

panel

indicators

48

Table14-

Miscellaneous

fault

conditions

49

Table15-Accessories

52

Table16Spare

parts

53

TCU

40/80

Temperature

Control

Unit

Hi

TRANSLATIONS

The

TCU

40/80

Instruction

Manualisavailable

in

the

following

translations:

Language

English

French

German

Italian

Japanese

Edwards

part

number

W95900001

W95900004

W95900005

W95900006

W95900007

For

each

TCU

40/80

purchased,

you

are

entitledtoone

translated

manual

freeofcharge.

This

is

in

additiontothe

English

version

provided.

Fax

this

completed

formtothe

nearest

Edwards

locationtoreceive

your

complimentary

translation.

Name:

Title:

Company:

Address:

TCU

serial

number:

Language:

(circle

one)

French

German

Italian

Japanese

TCU

40/80

Temperature

Control

Unit

1

PREFACE

1.1

Safety

considerations

Many

safety features

have

been

designed

into

the

TCU

40/80toprotect

the

operator

and

the

equipment.

The

following

symbols

are

usedinthis

manualtoindicate

the

various

safety

conditions.

General

Alert

General

Alert

symbol

denotes

the

potential

of

personal

hazards

or

equipment

failure.

Warnings

are

given

when

failuretoobserve

the

instruction

could

resultininjuryordeathtopersons.

Cautions

are

given

where

failuretoobserve

the

instruction

could

resultindamagetothe

equipment,

associated

equipment

and

process.

Statementonavoiding

the

hazard.

Electric

Shock

Electric

Shock

symbol

denotes

the

presenceofhigh

voltage

or

current.Itcalls

attentiontothe

procedure,

practice,orthe

like,

whichifnot

done

correctlyoradheredtocould

resultininjury

or

death.

Statementonavoiding

the

hazard.

Eye

Protection

Eye

Protection

symbol

denotesahazard

which

could

cause

injuryorirritation

to

the

eyes.

Statementonavoiding

the

hazard.

Toxic

Gases

Toxic

Gases

symbol

denotesapersonal

hazard.

It

calls

attentiontothe

procedure,

practice,orthe

like,

which

if

not

done

correctly

or

adheredtocould

resultininjury or death.

Statementonavoiding

the

hazard.

TCU

40/80

Temperature

Control

Unit

Hot

Surfaces

Hot

Surfaces

symbol

denotes a

hazard

which

could

cause

injury

or burns.

Statementonavoiding

the

hazard.

Hand

Protection

Hand

Protection

symbol

denotes a

hazard

which

could

cause

injuryorburns

Statementonavoiding

the

hazard.

High

Pressure

High

Pressure

symbol

denotesapersonal

hazardorequipment

failure.

It

calls

attention

to

the

procedure,

practice,

or

the

like,

whichifnot

done

correctlyoradheredtocould

result

in

equipment

damage,

injury

or death.

Statementonavoiding

the

hazard.

Extreme

Temperature

Extreme

Temperature

symbol

denotesahazard

which

could

cause

injuryorburns.

Statementonavoiding

the

hazard.

^

TCU

40/80

Temperature

Control

Unit

2

TCU

40/80

2.1

Scopeofthe

manual

This

manual

provides

informationonthe

installation,

start-up

and

operationofEdwards

High

Vacuum

Model

40/80

Temperature

Control

Unit

(TCU

40/80).

The

Quick

Start

Procedureonpage5isastepbystep

guide

for

the

startupand

use

of an

installed,

working

system.

Installation,

startingonpage

16,

provides

instructions

and

information

for

installing

the

system.

The

installer

must

have

sufficient

technical

understanding

of

electrical

and

mechanical

systemstoproperly

use

this

information.

Operation,

starting

on page

20,

provides

more

complete

instructions

on

the

preparation

and

useofthe

system.

2.2

Description

of

the

TCU

40/80

The

TCU

40/80isa

single-channel

temperature

control

unit

engineered

for

temperature

controlofremote

heat

loads.

From

distancesuptoSOfeet,

the

TCU

40/80

can

cool

the

heat

load

generatedbythe

process

equipment.

The

coolant

circulates

through

the

TCU

40/80,

whereitis

cooledorheatedasrequired,

thenistransferred

to

the

process

equipment,

and

returnsina closed

loop.

The

TCU

40/80

maintains

supply

coolantata

temperature

between

-40°Cand

+80

°C,

selectable

in

0.1°Cincrements,

withatoleranceof±1.0

°C.

2.3

Lockout

procedure

To

prevent

accidental

or

unauthorized

startingofthe

TCU

40/80

during

maintenance,

disconnect

the

power

cord

from

the

receptacle

and

installanappropriate

lock-out

device

(Hubbell

Small

Plugout™

or

equivalent)

on

the

endofthe

power

cord.

0

TCU

40/80

Temperature

Control

Unit

2.4

Safety

features

The

safety

features

listedinTable1are

designed

into

the

TCU

40/80.

TableI-

Safety

features

Component

EMERGENCY

OFF

button

(EMO)

Remote

EMERGENCY

OFF

Drawer

safety

switch

Pressure

switch

Condenser

pressure

relief

valve

Reservoir

pressure

relief

valve

Temperature

switch

Coolant

flow

switch

Coolant

float

switch

Coolant

float

switch

Thermal

overload

Surge

suppression

Line

phase

monitor

Current

sensor

Secondary

containment

Ref.

des.*

(PB1)

(J72J2)

(LSD

(PS1)

(W2)

(Wl)

(TS1)

(FS1)

(LLS1)

(LLS3)

(K3)

VR1-4

PMR1

CSR1

Function

Shuts

off

powertomajor

system

components.

Remote

shut

offofpowertomajor

system

components.

Upon

opening

the

drawer,

shuts

off

powertomajor

system

components.

Protects

the

refrigeration

system

against

high

discharge

pressure.

Interrupts

operationat300

psig.

Vents

refrigerant

to

the

atmosphere

above

350

psig.

Fail

safe

for

PS1,

works

evenifthereisno

power

appliedtothe

system.

Protects

the

reservoir

from

over-pressure.

Protects

the

process

fluid

from

exceeding99°C

Protects

the

process

equipment

from

inadequate

coolant

flow

rates.

Protects

against

low

levelinthe

coolant

reservoir

by

stopping

the

equipment.

Protects

against

overfill

of

the

coolant

reservoir.

Indication

on

front

and

rear

panels.

Protects

the

pump

motor

from

excess

current.

Protects

the

TCU

40/80

against voltage

surges

and

power

line

transients.

Protects

the

equipment

against

incorrect

wiringofthe

supply

phases

and low

voltage

burn-out.

Protects

the

compressor

against

abnormal

conditions.

Captures

fluids

(internaltothe

TCU)inthe

eventofa

leak.

•

See

Figure3on

page

9.

TCU

40/80 Temperature

Control

Unit

3

QUICK

START

PROCEDURE

This

Quick

Start

procedureisfor

easy

start

up

and

operation

of an

installed

and

fully

working

TCU

40/80.Ifyour

TCU

40/80

is

not

installed,

gotoInstallation

on

page

16.

Detailed

operating

instructions

are

in

Operation

on page

20.

Ifatany

time an

alarm

occurs,

press

STOP

and

correct

the

fault

indicatedbythe

display

as

directedinthe

Troubleshooting

Guide

on

page

42.

Press

RESET

and

START

to

continue

operation.

3.1

Power

up

Before

applying

power,

verify

that

all

water

and

coolant

lines

are

connectedtothe

system.

The

handlesonboth

coolant

line

valves

shouldbein

the

open

position.

For

the

locationofthese

connections,

refer

to

Figure8on

page

18.

To

power up

the

TCU

40/80:

1.

READY

light

shouldbeon.Ifthe

ready

lightisnotonsee

Powering

Up

the

TCU

40/80onpage

20.

2.

Press

RESET.

Verify

that

front

panel

indicators

areasshowninthe

Reset

columnofTable2on

this

page.

3.

Press

START.

Verify

that front

panel

indicators

areasshowninthe

Start

Condition

columnofTable2on

this

page.

If in

steps

twoorthree

any

front

panel

indicators

do

not

match

Table2,refertothe

Troubleshooting

Guideonpage42for

corrective

action.

4.

Verify

that

the

coolant

pressure

gauge

(locatedonthe

front

access

panel)

reads

less

than

100

psig.

Table 2-Front

panel

Indicators

Indicator

POWER

ON

RESET

FACILITY

POWER

FACILITY

WATER

CIRCUIT

BREAKERS

COMPRESSOR

TEMPERATURE

FLOW

NORMAL

LEVEL

LOW

LEVEL

REMOTE

RTD

(optional)

Reset

Condition

Green

White

Green

Off

Green

Off

Green

OfT

Green

(if

used)

Start

Condition

Green

White

Green

Off

Green

(if

used)

3.2

Setpoint

verification

Verify

that

the

manual

mode

setpoint

value

(SV1)

displayedonthe

temperature

control

is

the

value

desired.Tochange

the

Setpoint

value

see

Changing

the Setpoint

Value

(SVl)onpage21.

Do

nottoexceed

the

normal

operating

parameters.

The

systemisdesigned

to

operate

from

-40°Cto

+80

°C.

TCU

40/80

Temperature

Control

Unit

4

PRODUCT

DESCRIPTION

4.1

Refrigeration

and

coolant

circuits

Figure1,Figure2,and

Table3on page8describe

the

refrigeration

and

coolant

componentsofthe

TCU

40/80.

Figure1-Refrigeration

and

coolant

components

TCU40/80

Temperature

Control

Unit

Figure2-

Refrigeration

and

coolant

components

TCU

40/80

Temperature

Control

Unit

/^\

Table3-

Refrigeration

and

coolant

components

Item

I

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

Component

name

Reservoir

Level

switch

Compressor

Crankcase

regulator

Suction

service

valve

Discharge

service

valve

Temperature

switch

Pressure

switch

Condenser

Filter

dryer

Safety

cooling

valve

Motor

Pump

Bypass

valve

Hot

gas

bypass

valve

Subcooler

Solenoid

valve

SV2

Solenoid

valve

SV1

Sight

glass

TEV

(Thermostatic

expansion

valve)

Heater

Flow

switch

Heat

exchanger

Pressure

relief

valve

Function

A

holding

tank

for

the

Fluorinert

coolant.

Monitors

the

coolant

levelinthe

reservoir.

Compresses

the

refrigerant

fluid.

Protects

the

compressor

against

pressure

overload.

Allows

isolation

at

the

compressor.

Allows

isolationatthe

compressor.

High

limit

switch

for

reservoir

heater.

Limits

maximum

allowable

discharge

pressure.

Transfers

heat

from

the

compressed

refrigerant

to

the

facility

water.

Removes

contaminants

and

moisture

from

the

refrigerant.

Limits

the

discharge

temperature.

Drives

the

coolant

pump.

Circulates

the

Fluorinert

coolant.

Regulates

coolant

flow.

Regulates

cooling

capacity.

Further

cools

the

refrigerant

thatisreturningtothe

compressor.

Allows

refrigerant

to

pass

through

the

hot

gas bypass

valve,

then

to

the

compressor

suction

line

when

energized.

Allows

refrigerant

to

passtothe

TEV

when

energized.

Allows

visual

inspectionofthe

refrigerant

charge

and

presence

of

moistureinthe

system.

Allows

the

refrigerant

to

expand

fromaliquidtoa

gas.

Raises

the

temperature

of

the

coolant

when

the

process

requires

heating.

Monitors

the

flow

rate.

Extracts

heat

from

the

coolant

and

transfers

ittothe

refrigerant.

Discharges

refrigerant

from

the

systemtothe

atmosphereinthe

eventofsevere

over-pressure

condition.

TCU

40/80

Temperature

Control

Unit

/

Bypass

vaSn

Oran

valve

I

RID

temperature

probe

Profisure

Gwlttfc

Figure3-Refrigeration

and

coolant

circuits

4.2

Refrigeration

(see

figure3above)

1.

Refrigerant

gas

enters

the

compressor

at

low

temperature

and

pressure.

It

leaves the

compressor

at

high

pressure

and

temperature.

2.

The

gas

passes

into

the

condenser,

where

heatisremovedbythe

external

water

supply,

causing

the

gastocondense

intoaliquid.

3.

The

cool

liquid

refrigerant

exits

the

condenser

and

passes

throughafilter

dryer

that

removes

any

residual

moistureorcontaminants.

4.2.1Ifcoolingisrequired:

1.

Solenoid

valve

SV1

opens

(coil

energized),

allowing

the

refrigerant

to

flow

into

the

Thermostatic

Expansion

Valve

(TEV).

The

pressure

drop

across

the

TEV

causes

the

refrigerant

to

change

from

a

liquidtoa

mixtureofliquid

and

gas.

2.

The

liquid

and

gas

mixture

enters

the

heat

exchanger

whereitbecomes

entirely

a

gas.

The

process

of

expansion

fromaliquidtoa

gas

reduces

the

temperature

by

absorbing

energy.

3.

The

refrigerant

leaving

the

heat

exchanger

returnstothe

compressor

through

the

subcooler

and

a

crankcase

pressure

regulator.

The

subcoolcr

further

cools

the

refrigerant

entering

the

TEV.

TCU

40/80

Temperature

Control

Unit

4.2.2Ifcoolingisnot

required:

1.

Solenoid

valve

SVl

closes

(coil

de-energized).

2.

Hot

refrigerant

from

the

compressor

is

passed

through

SV2

(coil

energized)

andahot

gas

bypass

valve

before

returning

to

the

compressor

suction

line.

This

bypassing

allows

the

compressor

to

run

continuously.

3.

Cooling,

requiredtoprevent

the

compressor

from

overheating,

is

providedbyallowing

someofthe

liquid

from

the

condensertopass

through

the

safety

cooling

automatic

expansion

valve

into

the

suction

line,

thus

maintaining

the

discharge

gas

temperature

below99°C.

4.3

Coolant

circuit

Coolantispulled

from

the

reservoir

by

the

circulation

pump

and

transferred

to

the

heat

exchanger

where

itiscooledbythe

refrigeration

systemasrequired.

It

then

flowstothe

process

equipmentbymeansofthe

coolant

supply

hose.

The

coolant

returnstothe

TCU

40/80

reservoirbymeansofthe

coolant

return

hose.

The

coolant

system

requires8litersofcoolant

for

the

reservoir,

plus

the

volumeofthe

circulation

lines

and

any

other

spaces

filled

with

coolant

that

are

attachedtothe

TCU

40/80.

To

increase

the

coolant

temperature,

the

reservoir

usesanelectrical

resistance

heater

thatiscontrolled

by

the

temperature

controller.

The

heater

mustbefully

submergedatall

times,

andifthe

coolantinthe

reservoir

falls

below

3.S

liters,alevel

switch causes

the

status

alarm

signaltoautomatically

shut

down

the

TCU

40/80.

A

three-float

level

switch,athermostat,

andaflow

sensor

provide

coolant

status

signalstothe

TCU

40/80

control

system.

4.4

Temperature

monitoring

A

Resistance

Temperature

Device

(RTD)

monitors

the

temperatureofthe

coolant

leaving

the

TCU

40/80

and

transmits

this

information

to

the

temperature

controller.

The

TCU

40/80

compares

the

outputofthe

RTDtothe

selected

process

temperature

(SVl)

and

determines

if

the

coolant

needstobe

cooledorheated.

The

temperature

controller

then

operates

the

main

cooling

solenoid

valveorheater.

The

coolant

temperature

at

the

supply

portonthe

rear

panelismeasuredbya

local,

internally

connected

RTD.Ifsensingofprocess

equipment

temperature

is

needed,

connectanRTDtoJ72J3atthe

rear

panel

(see

Figure5on page

13).

For

remote

connection

schematic

details,

see

FigureISon

page

56.

^WIITV

10

TCU

40/80

Temperature

Control

Unit

4.5

Front

panel

Figure

4 shows

the

Front

Panel.

Table4,Table5and

Table6identify

its

controls

and

indicators.

|MO<

?

5

>

mat

mu

0

aw-"

Figure4-

Front panel

Table4-

Front panel

controls

Control

name

POWER

ON

RESET

EMERGENCY

OFF

START/STOP

ALARM

MUTE

Description

Lights

green

when

powerisbeing

suppliedtothe

TCU

40/80.

Resets

alarms

and

makes

the

TCU

40/80

readytooperate.

The

white

light

indicates

that

the

TCU

40/80isreadytooperate.

Removes

power

from

all

TCU

40/80

circuits

except

the

EMERGENCY

OFF

circuit.Toshut

off

power,

push

EMERGENCY

OFF

(EMO).Toreset,

rotate

the

EMERGENCY

OFF

button

clockwiseasshownonthe

switch.

Starts

and

stops

the

operationofthe

TCU

40/80.

Emitsahigh

pitched

sound

when

thereisa

fault

condition

which

has

caused

the

TCU

40/80tostop operation.

Silences

the

audible

alarm.

TCU

40/80

Temperature

Control

Unit

II

Table5-

Front

panel

LED

indicators

LED

name

FACILITY

POWER

FACILITY

WATER

CIRCUIT

BREAKERS

COMPRESSOR

COOLANT

TEMPERATURE

COOLANT

FLOW

COOLANT

NORMAL

LEVEL

COOLANT

LOW

LEVEL

REMOTE

RTD

Condition

Green

Red

Green

Red

Green

Red

Green

Red

Green

Red

Green

Red

Green

Amber

Off

Amber

Red

Off

Green

Description

Power

phases

are

normal.

Power

phases

are

reversedorlow

line

voltage.

Water

pressure

and

flow

are

normal.

Water

pressureorflow

are

not

adequate.

(See

Specifications

on page

14.

Rear

panel

circuit

breakers

2, 3,

and4are

on.

Oneormoreofthese

breakersistrippedoroff.

Compressorisoperating

normally.

Compressor

has

stopped

operating.

Coolant

reservoir

temperature

is

normal.

Coolant

temperature

is

above

the

operating

range.

Coolant

flowisnormal.

Coolant

flowisnot

adequate.

Coolant

levelisnormal.

Coolant

levelisover

filled.

Coolant

levelisnormal

Coolant

levelislow.

Coolant

levelisvery

low.

Remote

RTD

not

connected.

Remote

RTD

temperature

probeisin

use.

Table6-

Temperature

controller

Controls

and

indicators

Process

Value

(PV)

Setpoint

Value

(SP)

Pushbuttons

Remote

Mode

LED

(Aux)

Description

The

present

temperature

of

the

coolant,asindicatedbythe

internal

RTD

or

the

remote

RTD.

The

TCU

40/80

regulates

to this

temperature,

as

setbythe

operator.

Usedtoprogram

the

controller.

Indicates

modeofoperation:

Off

indicates

local

operation.

On

indicates

remote

operation.

12

TCU

40/80

Temperature

Control

Unit

4.6

Rear

panel

Figure5shows

the

rear

panel.

Table7identifies

the

controls

and

indicators

on

the

rear

panel.

D

G

t

Fj

cocuurr

iml

p

n

pi

n

p!

=

H

t90/t0*

VAC

» *M

•0/WHi*0A

Figure5-

Electrical

rear

panel

Table7■

Label

J72J3

CB724VAC

CB824VDC

J72J2

CB4

reservoir

heater

CB3

circulation

pump

CB2

compressor

CB1

main

power

normal/overfill

low/fault

200/208

VAC3PH

50/60Hz30A

CB5-XFMR

CB6-PSU

J72J1

■

Description

of

rear

panel

components

and

indicators

Description

Five

connector

for

remote

RTD

interface.

See

Figure15on

page56for

pinouts.

1

-pole,2Amp

circuit

breaker.

Isolates

the24VAC

transformer.

Normally

on

(in).

l-pole,2Amp

circuit

breaker.

Isolates

the24VDC

power

supply

output.

Normallyon(in).

Nine

connector

for

remote

EMERGENCY

OFF,

start-stop

operation,

and

remote

setpoint

operation

enable.

See

Figure15on

page56for

pinouts.

3-pole,10Amp

circuit

breaker.

Normallyon(up).

3-pole,6Amp

circuit

breaker.

Normallyon(up).

3-pole,16Amp

circuit

breaker.

Normallyon(up).

3-pole,25Amp

circuit

breaker.

Normallyon(up).

Normal,

LED

Green

Overfilled,

LED

Amber

Low,

LED

Amber

Fault,

LED

Red

Mains

input

power

connector.

2-pole,

0.5

Amp

circuit

breaker.

Isolates

the

equipment

transformer.

2-poIe,

0.3

Amp

circuit

breaker.

Isolates

the

power

supply.

37

D-subminiature

connector,

for

setpoint

value

signal,

process

value

signal,

and

remote

fail

and

warning

signals.

See

Figure15on

page56for

pinouts.

TCU

40/80

Temperature

Control

Unit

13

4.7

Specifications

Parameter

Temperature

ramp

Cooling

capacity

@

process

equipment

ISO

watt

coolant

line

losses;

coolant

water

@

15

°C

Heating element

System

flow

Process

temperature

range

Setpoint

resolution

Temperature

regulation

Facility

water

requirements

Power

requirements

Ambient

operating

temperature

Weight

Dimensions

Altitude

Max.

relative

humidity

Transient

overvoltage

Pollution

Degree

Sound

pressure

level

Conditions

Coolant

short

circuit

conditions

+25°Cto+80°C

+25°Cto-30°C

Process

coolant@-40

°C

Process

coolant

@-20°Cto

+80

"C,

@20

°C,60psig

+10oC(-0°+2°)to

+26"C(+0°

-2°)

3-phase

delta

(balanced

load),4wire

(3

phases&earth

gnd),

200to208

VAC,

50/60

Hz

Upto31

"C

Above31°C

IEC

664,

Installation

Edwards TCU 40/80 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual