Products that perform...By people who care

Single-Stage Positive-Pressure Compressor Chlorine-Free HFC-134a RefrigerantFlooded EvaporatorAutomatic Refrigerant PurifierAdvanced PLC Control SystemOption with Variable Frequency Device

Performance Features

DCLCDunham-BushCentrifugal Liquid Chiller

Refrigeration Capacity1055-5274kW300-1500 Tons

50Hz R134a

1

Dunham-BushCentrifugal

Liquid Chiller

DCLC 46 47 F53 CM 51 B

Evaporator

Design Level

Motor

Motor Voltage&Hertz

Condenser

Compressor

Chiller Refrigeration Cycle

Enthalpy,Btu/lbm

Condenser In

Condenser Out

Cooler Out

Cooler In

Pres

sure

, psi

140

120

100

80

60

40

2020 40 60 80 100 120 140

4 3

51

2

Introduction The Dunham-Bush DCLC Water-Cooled Centrifugal Liquid Chillers

are available from 300 to 1500 tons. These units are supplied with single

stage centrifugal compressors that have high performance and stability,

and the performance of the chillers accord with ARI550/590 “Performance

rating of water-chilling packages using the vapor compression

cycle”. The side by side evaporator/condenser arrangement makes a

spl i t design optional for ease of movement throughany standard

commercial doorway.

All units are factory run tested before shipment.

High Efficient Refrigeration CycleThe refrigeration process is shown in a (P.h)-diagram

1-2 Vapor Compression

2-3 Vapor Condensing

3-4 Subcooling

4-5 Throttle Process

5-1 Cooling Liquid Vaporization

Chiller FeaturesDesigned to operate with environmentally safe and economically

smart HFC-134a with proven efficiency and reliability

Optimal structure configuration

Convenient for installation and maintenance

Excellent Part Load Performance

Centrifugal Water Chillers combine the efficient operation of the

compressor with variable refrigerant management and microprocessor

control to yield the best total energy efficiency and significant operating

savings under any load.

Adjustable orifice plate and level sensor controls the evaporator liquid le-

vel to insure high efficient partial load performance of the chiller, and insure

the chillers running stably even the inlet water temperature of condenser being

down to 55°F.

Optimal Automatic Refrigerant Purifier

Double-loop design and special automatic oil recovery device insures

oil circulation and refrigerant purification

Advanced PLC Microcomputer Control System

Fuzzy logic control theory is used in the PLC microcomputer control

system. Key variable detection forecasts operational trends, realize the

accurate control of the chiller, besides, The microcomputer comes complete

with RS232 and RS485.

·DCLC

Chiller Nomenclature

2

100%90%

80%70%

60%

Hea

dFr

actio

n

Flow Fraction.25 .50 .75 1.0

.8

.6

.4

Design point

40%30%

20%

50%

.2

1.

.0.0

IGV

=90d

seer

ge

IGed

07=

Vrg

see

IGV

=50degrees

IGV

=30degrees

IGV

=20degrees

IGV

=10degrees

Surge Line(guide vane and adjustable diffuser)

Surge Line (guide vane)

ARI Cooling Water Temperature

Cooling Water Temperature

New Design High Precision

High Efficency and High

Intensity

communications ports and all hardware and software necessary to

remotely monitor and control the packaged chiller up to 50 feet away

(hard wired) or by optional phone modem for extended distances by the

phone system. This valuable enhancement to the chiller system allows

the ultimate in serviceability.

Easy InstallationNo need for vacuum equipment and frequent refrigerant replacment

Compact structure and small floor area

Easy installation and maintenance

Installation Flexibility Modularization design allows the centrifugal chiller to optimally

meet customer requirement.

Load Regulation Scope Both the guide vanes and the adjustable diffuser ensure safe running

from 10 to 100 percent loading.

Hermetic Motor Cooled by RefrigerantRefrigerant cooling of the hermetic motor realizse more efficiency and

more reliability

Muti-startup modes decrease the starting current and insure safe condi-

tions and coefficient of performance (COP)

Compressor Characteristic Single Stage design provides unmatchable advantages over other

kinds of compressors, such as low vibration level of and noise, light

weight, high efficiency, high reliability and low energy consumption.

High Efficient Impeller of 3-D Flow Design High efficient semi-open impeller designed by 3-D flow theory.

Special aluminum alloy impeller precision casted by integer mould.

Precise dynamic balance and 125% over speed testing ensures high

efficiency of the chiller at any load of the power network.

Reliable Oil Circulation Special babbitt alloy bearings, forced oil cooling system and

double protection mode with rich-oil design pattern and high-level

oil tank, ensures reliable oil circulation whether the chiller is run-

ning or stops suddenly.

Simple Configuration and Convenient MaintenanceLow voltage control circuits

Heat Exchanger Feature Flooded Coolers employ the most advanced vessel technology avail-

able today. Special internal and external enhanced tubing provides

excellent unit efficiency. These coolers are designed and constructed to

meet the requirements of the ASME Code, Section VIII, Division 1 for

unfired

·DCLC

Compressor, motor, oil pump and transmission hermetically sealed. Oil cooler and oil filter located outside the compressor.Replaceable oil filter and oil cooler cores arestandard.Automated controls selftest on startup.

3

pressure vessels and are stamped accordingly. The tubing is rollexpand-

ed into the tubesheets and the heads are removable and inter-changeable

from end to end for ease of tube maintenance. Vent and drain plugs are

provided in each head. Two-pass coolers are standard with optional one

and three-pass designs.Victaulic connections are standard.

The microcomputer control system has two main functions which are Screen function and control and protection function.

Display Information

The alphanumeric liquid crystal display utilizes easy-to-understand

menu-driven software.Inexperienced operators can quickly work through

these menus to obtain the information they require or to modify control

parameters. More experienced operators can bypass the menu systems, if

desired, and move directly to their requested control function. Easily

accessible measurements include:

Leaving chilled water temperature

Evaporator pressure

Condenser pressure

System voltage

Guide vane opening degree

Compressor contactor status

Water temperature reset value

Water flow switch status

External start/stop command status

Oil temperature

Oil tank temperature

Oil tank pressure

Gears temperature

Oil pressure difference

Freeze protection

High oil temperature

High motor temperature

Low pressure difference

Compressor surge

Sensor error

Compressor over-current

Anti-recycle

Compressor starter failure

Oil pump overload

Oil pump starter failure

Low pressure difference of oil

Power loss

Chilled water flow loss

The microcomputer retains the latest thirty alarm conditions

complete with time of failure in its alarm history. This tool aids service

technicians in troubleshooting tasks enabling downtime and nuisance

trip-outs to be minimized.

Remote Monitoring(Option) The standard RS232 communications port remote monitoring and control

from a simple terminal and optional phone modem. This valuable enhancement

to the refrigeration system allows the ultimate in serviceability. The microcom-

puter comes standard with history files which may be used to take logs which

are retrievable via the phone modem periodically. Now owners of multiple build-

ings have a simple and inexpensive method of investigating potential problems

quickly and in a highly cost effective manner. Dunham-Bush has open protocol

on its microcomputer to allow direct interface with Building Management

Systems.

·DCLC

System Protection

The following system protection controls will automatically act to

insure system reliability:

Low suction pressure

High discharge pressure

4

Started by set time

·DCLC

Remote controller (Option)

5

DC

LC

Tec

hnic

al D

ata

Not

e:

1.W

ork

Cond

ition

:Coo

ler W

ater

12/7，

Foul

ing

Fact

or 0

.017

6(m

2-°K

)/kW

; Con

dens

er W

ater

32/3

7,F

oulin

g Fa

ctor

0.0

43(m

2-°K

)/kW

2.A

bove

Chi

ller S

elec

tion

acco

rdin

g to

380

V v

olta

ge，

if th

ere

are

othe

r req

uire

men

ts ,p

leas

e co

ntac

t with

DU

NH

AN

-BU

SH.

Uni

t Mod

el

Coo

ling

Cap

acity

RT kW kW A A

CO

P

rotoM DimensionCondenserEvaporaotr

Rat

ed C

urre

nt

Star

ting

Cur

rent

Coo

ling

Mod

e

Cod

e

Flow

Rat

e

Pres

sure

Los

s

Noz

zle P

ipe S

ize

Cod

e

Flow

Rat

e

Len

gth

A

Wid

thB

Hei

ght

C

Rig

ging

Wei

ght

Ope

ratin

g Weig

ht

R13

4a W

eigt

h

kW/kW

kW/RT l/s l/skPa

mm

kPa

mm

mm

mm

mm kg kg

DC

LC

300

1055

210

5.02 0.7

T07

357

893

350

1231

231

5.33

0.66 T16

392

980

400

1406

266

5.29

0.67 T27

451

1128

450

1582

298

5.31

0.66 T36

509

1273

500

1758

326

5.39

0.65

T66

555

1388

550

1934

340

5.69

0.62 F16

578

1445

600

2110

393

5.37

0.66 F27

667

1668

650

2285

421

5.43

0.65 F27

719

1798

700

2461

429

5.74

0.61 F36

731

1828

750

2637

479

5.51

0.64 F47

819

2048

800

2813

511

5.50

0.64 F47

876

2190

850

2989

524

5.70

0.62 S05

897

2243

900

3164

550

5.75

0.61 S25

944

2360

1000

3516

613

5.74

0.61

S35

1054

2635

1100

3868

675

5.73

0.61

S35

1157

2893

1200

4219

716

5.89 0.6

S65

1226

3065

1300

4571

772

5.92

0.59

S65

1328

3320

1400

4922

849

5.80

0.61

S75

1457

3643

1500

5274

898

5.87 0.6

S85

1542

3855

20 50 86

21 59 83

22 67 81

30 76 80

36 84 89

40 92 70

45 101

93

46 109

90

47 118

94

55 126

82

55 134

93

65 143

92

65 151

103

66 168

102

67 185

105

75 202

109

76 218

109

76 235

126

77 252

125

4173

1670

2000

6984

7717

277

4173

1670

2000

7157

7988

308

4173

1670

2000

7245

8140

340

4388

1879

2100

8760

9841

381

4909

1879

2100

9529

1089

4

477

4423

1994

2250

9918

1139

2

521

4944

1994

2250

1038

7

1201

8

617

4944

1994

2250

1072

0

1250

8

648

4944

1994

2250

1080

0

1263

6

666

4959

2096

2270

1157

0

1353

6

693

4959

2096

2270

1167

2

1367

7

693

5675

2426

2903

1904

3

2189

1

1039

5675

2426

2903

1926

5

2219

9

1039

5675

2426

2903

1770

4

2086

4

1103

5675

2426

2903

1986

6

2314

3

1157

5737

2712

2965

2234

8

2588

7

1156

5737

2712

2965

2254

3

2621

2

1215

5737

2712

2965

2276

5

2652

0

1215

5737

2712

2965

2296

6

2685

0

1270

380/

6000

/100

00V

Ref

riger

ant

053N

D003

ND

052N

D002

ND

053N

D003

ND

052N

D002

ND

·DCLC

Inpu

t Pow

er

300

350

400

450

500

550

600

650

700

750

800

850

900

1000

1100

1200

1300

1400

1500

Com

pres

sor C

ode

Pow

er S

uppl

y

Pres

sure

Los

s

Noz

zle P

ipe S

ize

kPa

mm

21 60 68

22 71 67

45

121

88

41

111

54

37

101

72

30 91 87

22 81 87

47

131

74

47

141

86

55

151

86

56

161

87

65

171

90

66

181

82

67

202

84

67

222

101

76

242

91

76

262

106

77

282

105

77

302

120

Weights

6

Code of Evaporator and Condenser

Frame

2

3

4

5

6

7

20 22

25 27

30 32

35 37

40 42

45 47

50 52

55 57

60 62

65 ~ 67

70 ~ 72

75 77

Length “A” Width “B” Heigth “C” Space “D”

mm

Dimension Data

"A"

"C"

RecommendationLength "D"

Min Space

635mm

375mm

"B"

Recommendation Space1350mm

Maintenance Space1250mm

Maintenance Space

Notes 1 The length of A including flanges, where: evaporator and condenser are two passes close to the switch box in the standard chillers).

2 The above dimensions are based on the pressure bearing at water side, which is 1.0Mpa, and the length A will be changed according to it.

3 The above dimensions are for the standard chillers, if you need non-standard ones, please connect with Dunham-bush.

·DCLC

Min Space

4173

4694

4388

4909

4423

4944

4438

4959

5065

5675

5127

5737

1670

1670

1879

1879

1994

1994

2096

2096

2426

2426

2712

2712

2000

2000

2100

2100

2250

2250

2270

2270

2782

2903

2965

2965

3750

4350

3750

4350

3750

4350

3750

4350

4270

4880

4270

4880

7

Configuration Data

Notes 1 Water pipelines of standard chillers are at motor side (Model A), and the inlet and outlet of water are at underside and upside, respectively.

2 The above dimensions are based on the pressure bearing at water side, which is 1.0Mpa, and the length A will be changed according to it.

Code of Evaporator and Condenser

Frame 220 ~ 22

25 ~ 27

Code of Evaporator and Condenser

Frame

3

4

5

6

7

30 ~ 32

35 ~ 37

40 ~ 42

45 ~ 47

50 ~ 52

55 ~ 57

60 ~ 62

65 ~ 67

70 ~ 72

75 ~ 77

A B C D E F G H

606

747

799

1030

1044

976

1117

1169

1538

1602

478

463

500

787

737

848

833

870

1295

1295

DN200

DN200

DN250

DN300

DN350

DN200

DN250

DN250

DN300

DN350

940

997

1045

1213

1356

464

489

521

610

678

A

611 881 390 660 212 212 387 387

B C D E F G H

DN200

Water Chamber Close to the Motor (Model A Water Chamber Close to the Compressor (Model B

7

8

6

5

Condenser

Evaporator

A

B

F F

G

E EH

CD

Condenser

Evaporator7

86

5

A

B

D

C

H G

Condenser

Evaporator

1

23

4

AD

C

G H

B

Condenser

Evaporator

1

2

3

4

A

FF

G

EEH

CD

B

·DCLC

8

The Requirements of Connection and Pipelines:

1 All the cables must be set and marked correctly

2 Filters must be set in the cooling water pipelines

3 Temperature gauge (0-50 and pressure gauge 0-1MPa or 2MPa should be set in the inlet/out pipelines

4 It’s recommended that vent of the relief valve(R1-1/4”,Internal thread should be led to outside by an steel tube (Outer Diameter:42mm, Thickness:4mm

5 In order to protect personal safety and health,It’s recommended that an oxygen detector should be set in the machine room.

1 Air Switch

6 Air Vent

11

2 Non-airborne Starting Cabinet

7) Pressure Gauge

12)Cooling Tower Starter

3 Motor Terminal Box

8 Cooled Water Pump

13 Air Switch

4 Oil Pump Control Box

9 Cooling Water Pump

14 Air Switch of Oil Pump

5 Switch Box

10 Cooled Water Pump Starter

Line No.

1#

2#

3#

4#

5#

6#

7#

Application Specification

From Starting Cabinent to Control Box

From Starting Cabinent to Main Motor

380V AC: Three Phase, One Neutral Line, One Earth Line. 6300V, 10000V: Three Phase, One Earth Line

Two Control Lines Option

Two Control Lines Option

Two Control Lines Option

380V AC: Three Phase, One Neutral Line, One Earth Line.

220V AC: Single Phase,One Neutral Line, One Earth Line. 10 Shield Control Lines, 600V, 80 Grounding in the starting Cabinent

380V AC 6 Motor Lead lines the minimum current of it is 0.721 times of rated current) Two Earth Lines

6300V/10kV AC 3 Motor Lead Lines,One Earth Lines

Classical Pipelines and Connection Figue

2

4

6

78

9

3

5

·DCLC

Power

Connected with Cooled Water PumpConnected with Cooling Water Pump

Connected with Cooling Tower Blower

Passed to Cooling Tower

From Cooling Tower

From Terminals

Passed to

Terminals

Drain

Cooling Water Pump Starter

Main Power Entering Starting Cabinent

From Switch Box to Cooling Tower Starter

From Switch Box to Cooling Pump Starter

From Switch Box to Cooled Pump Starter

From Main Power to Oil Pump Control Box

9

Note

1 There are 4 pieces of bottom plates 16 adjustable bolts and

16 pieces of correction level backing plates in each chiller

2 After pouring concrete, the adjustable bolts should be taken out

3 Based on the requirement of horizonal adjustment, the thickness

of sceondary pouring concrete should be determined according

to the actual condition

Foundation and Damper

Foundation Dimension

Standard Damper Model

Simple Damper Model

B-B

Code of Evaporator and Condenser

Frame

2

3

4

5

6

7

20 22

25 27

30 32

35 37

40 42

45 47

50 52

55 57

60 62

65 67

70 72

75 77

A

3960

4480

3960

4480

3960

4480

3960

4480

4658

5268

4658

5268

B

1670

1670

1879

1879

1994

1994

2096

2096

2426

2426

2712

2712

C

92

92

92

92

92

92

92

92

176

176

176

176

D

387

387

387

387

387

387

387

387

559

559

559

559

E

229

229

229

229

229

229

229

229

406

406

406

406

F

540

540

540

540

540

540

540

540

711

711

711

711

G

464

464

464

464

464

464

464

464

635

635

635

635

H

254

254

254

254

254

254

254

254

432

432

432

432

J

178

178

178

178

178

178

178

178

356

356

356

356

Tube Plate

Support Plate

High Elastic Damper

1076

B

C

D

E

Condenser Centerline

Evaporator CenterlineFoundation

A

A

A

B B

A-A

Tube Plate

Horizonal Datum Line25mm Bottom Plate

Ajustable BoltSupport Plate

Correction Level Backing Plate

Chiller Support Plate

High Elastic Damper

Adjustable Bolts

Bottom Plate

HJ38

F G38 4-M22

·DCLC

Correction Level Backing Plate

10

Starter Modes

Voltage

50Hz

Switch

Solid State Starter

Low

380-415

-

-

45

Star-delta Starter

Low

346-415

Enclosed

-

33

Low

346-415

Enclosed

57.7

33

Low/High

346-10000

Enclosed

65

42.3

Low/High

346-10000

Enclosed

80

64

High

2300-10000

Enclosed

65

65

High

2300-10000

Enclosed

80

80

Direct Starter

-

-

-

-

100

50HZ Motor Data

Motor Starter

Note 1 Symbol Description RLA-Rated Current LRYA-Star Type Stopping-turning Current LRDA-Delta Stopping-turning Current

2 If the voltage that you need is differnt, Please connect with Dunham-bush

Motor Code

Input Power

Input Power

Voltage

Voltage

380V

380V

kW

RLA

LRYA

LRDA

kW

RLA

LRYA

LRDA

Motor Code

Current (A)

Current (A)

CB

194

332

604

1903

CQ

597

968

1365

4457

CC

215

367

609

1916

CR

634

1082

2135

6775

CD

241

419

778

2441

CS

681

1133

2049

6530

CE

272

457

707

2208

CT

738

1243

2343

7450

CF

304

538

877

2741

DB

597

1018

1870

5933

CG

335

571

938

2929

DC

634

1082

2135

6775

CH

366

597

917

2990

DD

681

1133

2049

6530

CJ

398

650

984

2158

DE

738

1243

2343

7450

CK

429

695

1234

4013

DF

806

1349

2359

7503

CL

461

747

1231

4007

DG

856

1477

3150

9745

CM

492

797

1351

4398

DH

916

1562

3240

10286

CN

523

848

1469

4775

DJ

966

1648

3417

10847

CP

560

908

1280

4181

DK

1015

1731

3590

11397

Self Coupling Voltage Transformation Starter Primary Reactance Starter

·DCLC

Ratio of Starting Current OccupiedStopping Turning Current

11

Model Selection Discription

Code of evaporator and condenser

45 47

A B C D E F G H J

Code of evaporator and condenser

45 47

A B C D G H

747 1117 463 838 DN200 DN250 489 997

Code of evaporator and condenserA-Length mm

(Including FlangesB-Width mm C-Heigth mm D-Pipeline Space mm

4944 1994 2250 435045 47

Evaportor design pressure at water side: the standard bearing

pressure at water side is 1.0MPa,and option with 2.0MPa

Condenser design pressure at water side: the standard bearing

pressure at water side is 1.0MPa,and option with 2.0MPa

Damping Device: the centrifugal chillers are standard with rubber

damper, and option with spring damper

Noise Control mode: the chillers are option with noise control jacket

at the discharge of the centrifugal compressor, as can decrease the noise

about 1-2dB A

Dimension Data Discription

The dimension data of the chillers can be refered to the lookup table.

As a case of DCLC4647F53, where the code of evaporator and condenser

is 46 and 47, respectively, the dimension data of it can be determined by

the following method:

·DCLC

Refering to page 6 and from the row of 46~47, the dimension data of it can be obtained

Refering to page 7 and from the row of 46~47, the size of pipeline and flanges can be obtained

Refering to page 9 and from the row of 46~47, the foundation data of it can be obtained

4480 1670 92 387 229 540 464 254 178

12

FLA

0 ~ 495A

496 ~ 741A

742 ~ 1150A

1151 ~ 1350A

1700

2000

2100

2200

800

900

1100

1200

450

550

550

550

D

265

300

350

250

E

240

250

250

250

F

335

435

435

435

G

500

600

800

900

H

380

440

440

490

I

92

92

142

142

J

235

325

325

325

K

636

726

926

926

L

480

480

480

530

M

82

82

82

82

N

600

670

810

880

AHeight

BWidth

CThickness

380V Low Voltage Star-delta Starting Cabinent

50A

B

ED

C

Outgoing Wiring Column

T1-T6

Incoming Wiring ColumnL1 L2 L3

GHI

260 F

4-1130

Outgoing Wiring Hole

J260

N

M L

K

The front door

can be open 135°4-Lifting RingsInner Diameter 35mm

Control Wiring Terminal

Outgoing Wiring Cable fixed mount

L1 L2 L3

T1 T2 T3 T4 T5 T6 XB

Lifting Ring Lifting Ring

Left View

PV PA

Front View Components Arrangement Diagram in the Cabinent

Top View

·DCLC

Incoming Wiring Cable fixed mount

Top View

Outgoing Wiring Hole

13

Enclosed Star-Delta Starter Cabinent Wiring Diagram

PE

PE

3N~50HZ 380V/220V

QM1

N L2L1PE L3

L12

L13

2W 2U 2V

3~M

1U 1V 1W

KM1

L11

KM4

KM2L21

L22L23

KM3

TA1

TA2

135

7

264

8

SB1

APA

PV

KM2

FR

7

531

264

8

SB2

V

X1:5

X1:1

X1:2

X1:3

L31

L32L33

R

2523

27

29

31

33

35

37

39

19

17

15

13

11

9753

L1N

1

21

X1:4

HL3

KT1

KM3

KM1

KM2

KM1

KM3

FR14MK2MK

KT1

HL4

KM2

KM1

KM4

KM3

HL1

YW

GN

WH

KT2

KA5Starting Command

KM4KT2

Starting Indirector

Resistor

Main contactor

Running Indrector

Starting Time

Transfer Resistance Timeout

KA1 Alarm Director

RD HL2

Power Indirector

FR1

·DCLC

Products that perform...By people who care

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www.dunham-bush.com.cn

Dunham-bush Yantai Co.LtdNo.1,Dunham-bush Road,Laishan District,Yantai,Shandong,China

F48A410001G

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