series

HFO-1233zd(E)

Next generation centrifugal chiller

Printed in Japan

MTHSS004, 1903 R6

Variable speed

MHI Centrifugal Chiller

527kW (150RT) ~ 2461kW (700RT)

ETI-

seriesVariable speedETI-

Low GWP Refrigerant

SPEC: EMS-544567 R2

FY2018FY2018

Minister,s Prize, The Ministry of Economy, Trade and Industry

Sponsor : The Energy Conservation Center, Japan

· Because of our policy of continuous improvement, we reserve right to make changes in all specifications without notice.· Option items are included in the pictures of chiller. · Unauthorized reproduction is prohibited.

（Wholly-owned subsidiary of MITSUBISHI HEAVY INDUSTRIES, LTD.）16-5, Konan 2-chome, Minato-ku, Tokyo 108-8215, Japanhttps://www.mhi-mth.co.jp/en/

Mitsubishi Heavy Industries Thermal Systems, Ltd.

Certified ISO 14001Our factories areISO9001 andISO14001 certified.

Certified ISO 9001

Certificate number: JQA-0709Date of certificate: December 16, 1994

Registration number: 02115Q10571R0SDate of certificate: May 21, 2015

Registration number: 02115E10252R0SDate of certificate: May 21, 2015

Certificate number: YKA4005636Date of certificate: December 27, 2017

The solution for ozone depletion and global warming problem,born the ETI-Z series for reduction of greenhouses gases.

1 2

seriesETI-

More Green Economy

ETI-Z

Chilled Water Leaving

Drive（Constant spead／Variable speed）

■ Product Line adapting Low GWP RefrigerantVariable

Hot Water Leaving

Control range in a Constinious Operation

Chilled Water/ Cooling WaterFlow Rate Control Range

Chilled Water Flow Rate Control Range

Refrigerant

Cooling Water Entering

100% - 10%

100%

100%

100% - approx. 0%

12℃

HFO-1233zd(E)

4℃

100% - 50%

Lower Limit

Lower Limit

Higher Limit

Standard

Standard

Standard

Option

Option

Option

Tem

pera

ture

Load

Flow

Ran

ge

HeatRecovery

VariableFlow Rate

ExcessFlow Rate

＊2

Built-in Inverter Panel

MHI Centrifugal Chiller new ETI-Z series adopting Low GWP refrigerantranging from 150RT to 700RT

ETI-Z series inherits high efficiency and compact size of ETI series with HFC-134a refrigerant, and is more environment- friendly chiller.

Environment

GWPCompact

Built in Inverter

Panel

High Efficiency

COP1 6.7

× ×

Variable Speed

＊1 Air-Conditioning use : Cooling Water 12℃/7℃　＊2 Control with load of less than 50% depending on model＊1 Air-Conditioning use : Cooling Water 12℃/7℃　＊2 Control with load of less than 50% depending on model

The solution for ozone depletion and global warming problem,born the ETI-Z series for reduction of greenhouses gases.

1 2

seriesETI-

More Green Economy

ETI-Z

Chilled Water Leaving

Drive（Constant spead／Variable speed）

■ Product Line adapting Low GWP RefrigerantVariable

Hot Water Leaving

Control range in a Constinious Operation

Chilled Water/ Cooling WaterFlow Rate Control Range

Chilled Water Flow Rate Control Range

Refrigerant

Cooling Water Entering

100% - 10%

100%

100%

100% - approx. 0%

12℃

HFO-1233zd(E)

4℃

100% - 50%

Lower Limit

Lower Limit

Higher Limit

Standard

Standard

Standard

Option

Option

Option

Tem

pera

ture

Load

Flow

Ran

ge

HeatRecovery

VariableFlow Rate

ExcessFlow Rate

＊2

Built-in Inverter Panel

MHI Centrifugal Chiller new ETI-Z series adopting Low GWP refrigerantranging from 150RT to 700RT

ETI-Z series inherits high efficiency and compact size of ETI series with HFC-134a refrigerant, and is more environment- friendly chiller.

Environment

GWPCompact

Built in Inverter

Panel

High Efficiency

COP1 6.7

× ×

Variable Speed

＊1 Air-Conditioning use : Cooling Water 12℃/7℃　＊2 Control with load of less than 50% depending on model＊1 Air-Conditioning use : Cooling Water 12℃/7℃　＊2 Control with load of less than 50% depending on model

Low GWP Refrigerant

Adoption of Low GWP RefrigerantHFO-1233zd(E)

More visible, More usable, More diverse

1(GWP)

Control Panel (7th Generation)

Information

3 4

Performance Characteristic

Entering temp.of cooling water

12℃16℃20℃24℃28℃32℃

Load (%)

COP C

OP

- In the case of failure, solution method (help screen) is displayed to support speedy solution.

- Automatically notify a maintenance time and others.

More visible and easier to operate compared with the previous 10.4-inch screen.

Environment

High Efficiency

Operation Data ScreenCan display up to a maximum of 18 pieces of data at one time.

Operation Setting ScreenCan set chilled water leaving temperature and chiller operating position.

Maintenance Information Data ScreenNotifies chiller maintenance period with pop-up when it approaches.

Failure Help ScreenDisplays help information on failure recovery.

0

5

10

15

20

25

30

20 40 60 80 100

(ETI-Z50)

max.copat part load

7.3

MoreConvenient

MoreVisible

seriesETI-

25.5max.copat part load

The adoption of a structure of compressor with high-speed direct motor drive, the elimination of step-up gears, and the use of fewer bearings allows for superlative performance by reducing motor drive-energy loss.

Adoption of high-speed motor direct connection type compressor

Features

Variable speed

Global Warming Potential System Diagram Screen

Liquid Crystal Display (LCD) with automatic lighting-up function.Light up by human detection sensor without touching panel

For environmental standardsUse of lead-free substrate, compatible with RoHS.

IPLV = 0.01A + 0.42B + 0.45C + 0.12DA = COP at 100% load (29.4°C*1) B = COP at 75% load (23.9°C*1)C = COP at 50% load (18.3°C*1) D = COP at 25% load (18.3°C*1)Leaving temperature of chilled water: 6.7°C 　: Entering temperature of cooling water

IPLVIPLV is the formula developed by AHRI to measure the efficiency of chillers under an actual annual operating conditions. IPLV is calculated when the unit is operating at 25%, 50%, 75% and 100% of capacity and at different cooling water temperature.[AHRI Standard 550/590(I-P)-2011] IPLV: Integrated Part Load Value AHRI: Air-Conditioning, Heating and Refrigeration Institute

*1

11.2IPLV

14

12

10

8

6

4

2

0

Load (%)0 20 40

A100%29.3℃

B75%23.0℃

C50%18.3℃

D25%18.3℃

60 80 100

kW/RT

IPLV(AHRI Standard 550/590［I-P］2011)(AHRI Standard 550/590［I-P］2011)

COP

6.7 0.52 11.225.5 0.14kW/RT

Max. COP at part load

(ETI-Z27) (ETI-Z50)(ETI-Z50)

（28℃）

12.1-inch wide screen

You can access various information and configure the setting just by touching the LCD screen.

Intutive touch panelMore

Accessible

Low GWP Refrigerant

Adoption of Low GWP RefrigerantHFO-1233zd(E)

More visible, More usable, More diverse

1(GWP)

Control Panel (7th Generation)

Information

3 4

Performance Characteristic

Entering temp.of cooling water

12℃16℃20℃24℃28℃32℃

Load (%)

COP C

OP

- In the case of failure, solution method (help screen) is displayed to support speedy solution.

- Automatically notify a maintenance time and others.

More visible and easier to operate compared with the previous 10.4-inch screen.

Environment

High Efficiency

Operation Data ScreenCan display up to a maximum of 18 pieces of data at one time.

Operation Setting ScreenCan set chilled water leaving temperature and chiller operating position.

Maintenance Information Data ScreenNotifies chiller maintenance period with pop-up when it approaches.

Failure Help ScreenDisplays help information on failure recovery.

0

5

10

15

20

25

30

20 40 60 80 100

(ETI-Z50)

max.copat part load

7.3

MoreConvenient

MoreVisible

seriesETI-

25.5max.copat part load

The adoption of a structure of compressor with high-speed direct motor drive, the elimination of step-up gears, and the use of fewer bearings allows for superlative performance by reducing motor drive-energy loss.

Adoption of high-speed motor direct connection type compressor

Features

Variable speed

Global Warming Potential System Diagram Screen

Liquid Crystal Display (LCD) with automatic lighting-up function.Light up by human detection sensor without touching panel

For environmental standardsUse of lead-free substrate, compatible with RoHS.

IPLV = 0.01A + 0.42B + 0.45C + 0.12DA = COP at 100% load (29.4°C*1) B = COP at 75% load (23.9°C*1)C = COP at 50% load (18.3°C*1) D = COP at 25% load (18.3°C*1)Leaving temperature of chilled water: 6.7°C 　: Entering temperature of cooling water

IPLVIPLV is the formula developed by AHRI to measure the efficiency of chillers under an actual annual operating conditions. IPLV is calculated when the unit is operating at 25%, 50%, 75% and 100% of capacity and at different cooling water temperature.[AHRI Standard 550/590(I-P)-2011] IPLV: Integrated Part Load Value AHRI: Air-Conditioning, Heating and Refrigeration Institute

*1

11.2IPLV

14

12

10

8

6

4

2

0

Load (%)0 20 40

A100%29.3℃

B75%23.0℃

C50%18.3℃

D25%18.3℃

60 80 100

kW/RT

IPLV(AHRI Standard 550/590［I-P］2011)(AHRI Standard 550/590［I-P］2011)

COP

6.7 0.52 11.225.5 0.14kW/RT

Max. COP at part load

(ETI-Z27) (ETI-Z50)(ETI-Z50)

（28℃）

12.1-inch wide screen

You can access various information and configure the setting just by touching the LCD screen.

Intutive touch panelMore

Accessible

AHRI 550/590 (I-P)-2011 Condition

Notes: 1. This specification is based on AHRI STANDARD 550/590 (I-P)-2011 conditions for temperature and fouling factor of chilled water and cooling water.2. Max. working pressure (Chilled water and Cooling water): 1 MPa (G)3. Installation environment: Inside installation

Install in a place avoiding rain, wind, direct sunlight, salinity, and steam. Do not install in a place where oil mist, dust, corrosive gas, and flammable gas, etc. are suspended.Ambient temperature must be between 0°C and 40°C and ambient humidity must be between 5% and 95%.

4. Design and specifications are subject to change without notice.

RTkWkWkWkW––

°C°C

m3/h–

kPainch°C°C

m3/h–

kPainch

––

ModelItem (unit) Z15 Z20 Z25250879132−

0.33−−

137.12496

173.52586

200703951060.336.656.63

109.72336

137.02386

1505277180

0.336.616.58

82.32206

102.92236

Z272508791181310.336.726.70

137.12

266

171.12

288

Z30300

10551431580.336.676.65

164.52

366

205.42

388

Z35350

12311811980.336.236.22

192.02

476

241.92

518

Z40400

14071912120.336.626.61

219.42

488

274.22

618

Z50500

1758267−

0.33−−

274.22

728

347.42

978

Z55500

17582392660.336.626.61

274.22

3910

343.52

4410

Z60600

21102953240.336.516.50

329.12

5410

413.62

6110

Z707002461396−

0.33−−

383.927110

491.328510

ETI-

RTkWkWkWkW––

m3/h–

kPaA

m3/h–

kPaA––

Z15 Z20 Z25250879134−

0.33−−

150.8258150

177.4261150

2007031001110.336.366.34

120.7240150

140.7240150

1505277685

0.336.206.17 90.5

224150

105.9224150

Z272508791241380.336.396.38

150.82

31150

175.82

29200

Z30300

10551501650.336.386.37

181.02

42150

211.02

39200

Z35350

12311852020.336.086.07

211.22

55150

247.82

53200

Z40400

14072002220.336.346.33

241.32

57200

281.62

64200

Z50500

1758272−

0.33−−

301.72

85200

355.72

102200

Z55500

17582462790.336.306.29

301.72

47250

353.02

46250

Z60600

21102953350.336.306.29

362.02

64250

424.42

64250

Z707002461381−

0.33−−

422.3284250

502.3289250

ETI-

Coo

ling

wat

erC

hille

d w

ater

Chilled Water 12℃/7℃, Cooling Water 32℃/37℃JIS B8621: 2011 Condition

Notes: 1. Chilled/Cooling water fouling factor: 0.000086 m2K/W (0.0001 m2h°C/kcal)2. Max. working pressure (Chilled water and Cooling water): 1 MPa (G)3. Installation environment: Inside installation

Install in a place avoiding rain, wind, direct sunlight, salinity, and steam. Do not install in a place where oil mist, dust, corrosive gas, and flammable gas, etc. are suspended.Ambient temperature must be between 0°C and 40°C and ambient humidity must be between 5% and 95%.

4. Design and specifications are subject to change without notice.

Cooling capacity

Motor outputInverter inputAuxiliary powerCOP (Not include auxiliary power)COP (Include auxiliary power) Entering temperature Leaving temperature Flow rate No. of pass Pressure drop Piping connection / Nozzle size Entering temperature Leaving temperature Flow rate No. of pass Pressure drop Piping connection / Nozzle sizePower source: mainPower source: auxilliary

ModelItem (unit)

Chille

d wa

ter

Cooling capacity

Motor outputInverter inputAuxiliary powerCOP (Not include auxiliary power)COP (Include auxiliary power) Flow rate No. of pass Pressure drop Piping connection / Nozzle size Flow rate No. of pass Pressure drop Piping connection / Nozzle sizePower source: mainPower source: auxilliary

Chi

ller

Three-phase 380V-440V (50/60Hz free)Three-phase 200V-220V (50/60Hz free)

12.26.7

29.434.5

Three-phase 380V-440V (50/60Hz free)Three-phase 200V-220V (50/60Hz free)

Cool

ing w

ater

Z15 Z20 Z25 Z27 Z35Z30 Z40 Z50 Z55 Z60 Z70

Microcomputer control panel

Microcomputer control panel

Inverter panel

5 6

Standard Ratings

Service Clearance

Dimensions and Weight

ModelLength (L)Width (W)Height (H)Shipping weightOperation weight

ETI-mmmtt

Z15 Z20 Z25 Z27 Z35Z30 Z40 Z55Z50 Z60 Z70ModelFrontBoth end (Right / Left )RearUpside

ETI-

3.81.61.84.35.1

3.81.92.05.46.6

4.32.02.17.69.2

4.32.22.310.412.5

Compact

mmmm

1.20.80.90.9

1.20.90.90.9

1.21.00.90.9

1.21.10.90.9

L

L

W

H

Inverter panel

ETI-Z15,20,25,27,30,35

ETI-Z40,50,55,60,70

W

H

Low GWP Refrigerant

Service clearance

Control panel

Rear

Left

Front

Right

Variable speed

Notes：1. Please refer to the ”MACHINE LAYOUT’ drawing by MHI Thermal Systems* for installation.2. The shipping weight is for integrated type shipping. Please contact MHI Thermal Systems* about divided shipment.3. Dimensions and weight are subject to change without notice.

*MHI Thermal Systems: Mitsubishi Heavy Industries Thermal Systems, Ltd.

Notes：1. Service clearance must be provided more than the data of above table.2. Tube removal space must be provided at either end of the tube, Please contact MHI Thermal Systems* about the length.3. The piping must be arranged with offsets for flexibility, and adequately supprted and balanced independently to avoid strain and vibration transmission on the chiller unit.4. Piping connections of chilled water and cooling water for monitoring are made by welding flanges rating : JIS-10K5. Thermometers of chilled water and cooling water are furnished by the purchaser.6. Prepare the hooks for lifting compressor and motor unit. (for removing compressor at overhauling)7. Refer to dimension of chiller for planning suitable and adequate entrance for machine installation, enough clearance should be provided. (caution: the above dimension data are the size without insulation, After insulation. the size will increace by the thickness of insulator)8. Antivibration rubber and rubber bushing instalation are supplied by MHI Thermal Systems*. (standard accessories) Scope of anchor bolt, anchor bolt's accessories, washers and nuts shall be confirm with the specification.(not standard accessories) 9. The construction of foundation bed and installation work of foundation bolts is with the scope of the purchaser. Please complete fondation work before installation chiller with reference to MHI Thermal Systems* drawing "INSPECTION RECORD".

10. The Purchaser must conned the rupture disc to the piping for releasing the refrigerant into the atmosphere in a safe manner. Use flexible joints s for connecting parts with the rupture disc piping, and Install proper piping supports for them.

AHRI 550/590 (I-P)-2011 Condition

Notes: 1. This specification is based on AHRI STANDARD 550/590 (I-P)-2011 conditions for temperature and fouling factor of chilled water and cooling water.2. Max. working pressure (Chilled water and Cooling water): 1 MPa (G)3. Installation environment: Inside installation

Install in a place avoiding rain, wind, direct sunlight, salinity, and steam. Do not install in a place where oil mist, dust, corrosive gas, and flammable gas, etc. are suspended.Ambient temperature must be between 0°C and 40°C and ambient humidity must be between 5% and 95%.

4. Design and specifications are subject to change without notice.

RTkWkWkWkW––

°C°C

m3/h–

kPainch°C°C

m3/h–

kPainch

––

ModelItem (unit) Z15 Z20 Z25250879132−

0.33−−

137.12

496

173.52

586

20070395

1060.336.656.63

109.72

336

137.02

386

1505277180

0.336.616.58

82.32

206

102.92

236

Z272508791181310.336.726.70

137.12

266

171.12

288

Z30300

10551431580.336.676.65

164.52

366

205.42

388

Z3535012311811980.336.236.22

192.02476

241.92518

Z4040014071912120.336.626.61

219.42488

274.22618

Z505001758267−

0.33−−

274.22728

347.42978

Z5550017582392660.336.626.61

274.223910

343.524410

Z60600

21102953240.336.516.50

329.12

5410

413.62

6110

Z70700

2461396−

0.33−−

383.927110

491.328510

ETI-

RTkWkWkWkW––

m3/h–

kPaA

m3/h–

kPaA––

Z15 Z20 Z25250879134−

0.33−−

150.82

58150

177.42

61150

2007031001110.336.366.34

120.72

40150

140.72

40150

1505277685

0.336.206.17 90.5

224

150105.9

224

150

Z272508791241380.336.396.38

150.82

31150

175.82

29200

Z30300

10551501650.336.386.37

181.02

42150

211.02

39200

Z3535012311852020.336.086.07

211.2255150

247.8253200

Z4040014072002220.336.346.33

241.3257200

281.6264200

Z505001758272−

0.33−−

301.7285200

355.72

102200

Z5550017582462790.336.306.29

301.7247250

353.0246250

Z60600

21102953350.336.306.29

362.02

64250

424.42

64250

Z70700

2461381−

0.33−−

422.32

84250

502.3289

250

ETI-

Coo

ling

wat

erC

hille

d w

ater

Chilled Water 12℃/7℃, Cooling Water 32℃/37℃JIS B8621: 2011 Condition

Notes: 1. Chilled/Cooling water fouling factor: 0.000086 m2K/W (0.0001 m2h°C/kcal)2. Max. working pressure (Chilled water and Cooling water): 1 MPa (G)3. Installation environment: Inside installation

Install in a place avoiding rain, wind, direct sunlight, salinity, and steam. Do not install in a place where oil mist, dust, corrosive gas, and flammable gas, etc. are suspended.Ambient temperature must be between 0°C and 40°C and ambient humidity must be between 5% and 95%.

4. Design and specifications are subject to change without notice.

Cooling capacity

Motor outputInverter inputAuxiliary powerCOP (Not include auxiliary power)COP (Include auxiliary power) Entering temperature Leaving temperature Flow rate No. of pass Pressure drop Piping connection / Nozzle size Entering temperature Leaving temperature Flow rate No. of pass Pressure drop Piping connection / Nozzle sizePower source: mainPower source: auxilliary

ModelItem (unit)

Chille

d wa

ter

Cooling capacity

Motor outputInverter inputAuxiliary powerCOP (Not include auxiliary power)COP (Include auxiliary power) Flow rate No. of pass Pressure drop Piping connection / Nozzle size Flow rate No. of pass Pressure drop Piping connection / Nozzle sizePower source: mainPower source: auxilliary

Chi

ller

Three-phase 380V-440V (50/60Hz free)Three-phase 200V-220V (50/60Hz free)

12.26.7

29.434.5

Three-phase 380V-440V (50/60Hz free)Three-phase 200V-220V (50/60Hz free)

Cool

ing w

ater

Z15 Z20 Z25 Z27 Z35Z30 Z40 Z50 Z55 Z60 Z70

Microcomputer control panel

Microcomputer control panel

Inverter panel

5 6

Standard Ratings

Service Clearance

Dimensions and Weight

ModelLength (L)Width (W)Height (H)Shipping weightOperation weight

ETI-mmmtt

Z15 Z20 Z25 Z27 Z35Z30 Z40 Z55Z50 Z60 Z70ModelFrontBoth end (Right / Left )RearUpside

ETI-

3.81.61.84.35.1

3.81.92.05.46.6

4.32.02.17.69.2

4.32.22.310.412.5

Compact

mmmm

1.20.80.90.9

1.20.90.90.9

1.21.00.90.9

1.21.10.90.9

L

L

W

H

Inverter panel

ETI-Z15,20,25,27,30,35

ETI-Z40,50,55,60,70

W

HLow GWP Refrigerant

Service clearance

Control panel

Rear

Left

Front

Right

Variable speed

Notes：1. Please refer to the ”MACHINE LAYOUT’ drawing by MHI Thermal Systems* for installation.2. The shipping weight is for integrated type shipping. Please contact MHI Thermal Systems* about divided shipment.3. Dimensions and weight are subject to change without notice.

*MHI Thermal Systems: Mitsubishi Heavy Industries Thermal Systems, Ltd.

Notes：1. Service clearance must be provided more than the data of above table.2. Tube removal space must be provided at either end of the tube, Please contact MHI Thermal Systems* about the length.3. The piping must be arranged with offsets for flexibility, and adequately supprted and balanced independently to avoid strain and vibration transmission on the chiller unit.4. Piping connections of chilled water and cooling water for monitoring are made by welding flanges rating : JIS-10K5. Thermometers of chilled water and cooling water are furnished by the purchaser.6. Prepare the hooks for lifting compressor and motor unit. (for removing compressor at overhauling)7. Refer to dimension of chiller for planning suitable and adequate entrance for machine installation, enough clearance should be provided. (caution: the above dimension data are the size without insulation, After insulation. the size will increace by the thickness of insulator)8. Antivibration rubber and rubber bushing instalation are supplied by MHI Thermal Systems*. (standard accessories) Scope of anchor bolt, anchor bolt's accessories, washers and nuts shall be confirm with the specification.(not standard accessories) 9. The construction of foundation bed and installation work of foundation bolts is with the scope of the purchaser. Please complete fondation work before installation chiller with reference to MHI Thermal Systems* drawing "INSPECTION RECORD".

10. The Purchaser must conned the rupture disc to the piping for releasing the refrigerant into the atmosphere in a safe manner. Use flexible joints s for connecting parts with the rupture disc piping, and Install proper piping supports for them.

9：20 9：30 9：40 9：50 10：00 10：10 10：20 10：00 10：05 10：10 10：15 10：20 10：25 10：30 10：35 10：400

5

10

15

20

25

0

5

10

15

20

2570

60

50

40

30

20

10

0

70

60

50

40

30

20

10

0Tem

p. o

f chil

led w

ater

/coll

ing w

ater

Load

[%], I

NV fr

eque

ncy [

Hz]

Load

[%], I

NV fr

eque

ncy [

Hz]

Tem

p. o

f chil

led w

ater

/coll

ing w

ater

Status trend graph for 0% load operation <Reference data> Startup Characteristics from standby operation <Reference data>

Entering temp. of colling water

Entering temp. of colling water

INV frequencyINV frequency

Entering temp. of chilled waterEntering and leaving temp. of chilled water

Entering and leaving temp. of chilled water

Load rate

Load rate

OthersItem Standard Option

Consult MHI Thermal Systems* for Details

Capacity control

Individual error display

Remote start/stop signal

Demand operation

External signal output (digital)

External signal output (analog)

Painting

Shipping style

Cold Insulation

Installation of ball cleaning device

Error is displayed on LCD

No-voltage pulse (instant)signal

−

−

Undivided

Not insulation (customer’s scope )

−

Individual failure signal output is possible by communication and digital signal output

7 8

●The temporary boiler for initial trial operation of cooling plant will be unnecessary.●Stand by operation at around zero percent load is available and accommodates rapid rise in loads.●Can continuously operate in a very low load range where conventional models were

operated with the ON/OFF control, and minimize the fluctuation of chilled water - leaving temperature.

For energy saving of air conditioning equipment, it is possible to install more than one chilled and cooling water pumps, change the number of unit of start/stop, and use an inverter for controlling the flow rate corresponding to the load. It is possible to operate chillers between 50% and 100% of rated flow rate of chilled water and cooling water (The range varies depending on the rated flow conditions.)

Extreme Low Load Function

Variable Flow Rate Function The number of operating chillers depends not on heat loads but on chilled water flow rates. The capacity to accommodate more than the rated chilled water flow eliminates the need for operating extra chiller and reduces the total energy consumption as a result.

Excess Flow Rate Function ※patented technology

Instantaneous Power Failure Restart●Can detect power failure due to voltage drop, shutdown the chiller, and automatically restart after recovery from the power failure.

※patented technology

Low GWP Refrigerant

Option

Variable speed

Optimize load distribution and operation number

Multiple chiller controlChilled / hot water variable flow rate control (Primary pump)Cooling water variable flow rate controlCooling tower operation/ fan controlCoolling water bypass valve controlChilled / hot water bypass valve controlChilled / hot water secondary pump control

12℃20℃25℃32℃

5

10

15

20

25

30

0 20 40 60 80 100

COP

Load [％]Load [％] 0 20 40 60 80 100

Improvement of system COP by optimal control which gets the best perfomance out of centrifugal chillerVarious energy-saving control functions

・Improvement in COP of centrifugal chiller・Chilled water variable flow control・Cooling water variable flow control

Cooling towerCooling water pumpChilled water pumpCentrifugal chiller

Easy to use for an automaticoptimization of the whole system

Heat source control systemEne-Conductor

Pump Pump

Cooling Tower

Starter panel(INV panel)

Air-conditioningUnit

Chiller

Heat Source Control SystemMore Energy saving

Ene-Conductor

Control functions of Ene-Conductor

Estimation condition : chiller 400 RT x 2units, Building air conditioner useNotes: Auxilliary equipment : contrl by inverter

Constant speed chiller(GART series)

Variable speed chiller(GART-I series)

Entering temp. of cooling water

In the case where the system combines multiple chillers with different performance, the Ene-Conductor automatically calculates the best load for each chiller to obtain the highest COP of the complete system.

Control over 80% load

Control 30% to 60% load

Optimum load range

Optimum load range

0 0

654321

200

400

600

800

1,000

1,200

3.52.1

5.9

65%down

Estimation example

Elec

tric

pow

er c

onsu

mpt

ion

［M

Wh/

year］

Syst

em C

OP

Previous centrifugal

chiller

INV centrifugal

chiller

INV centrifugal

chiller+

Ene Conductor

SystemCOP

5

10

15

20

25

30

COP

*MHI Thermal Systems: Mitsubishi Heavy Industries Thermal Systems, Ltd.

RS232C

RS485RS485

FeaturesThe remote monitoring program enables various performances.1) Monitoring the operation status2) Emergency response/treatment and report of the result3) Submission of monthly report of data and customer’s observation4) Proposal for preventive maintenance and economical use based on

the result of the analysis of accumulated data This program is not available for poor quality internet connections environment.

Remote Monitoring Program (WEB communication)

24-hour and 365-day remote monitoring program is suitable for maintaining the performance and function of the centrifugal chiller. Output operation data at customer’ s central monitor through MHI i-smart

communication terminal.Operation data can be used for the following items at customer’s central monitor.

- Trend - Operation status of chillers - Daily report and monthly report etc.

Total connection/transmission distance of RS485 with max. 500 m

Central Monitoring

Compact size (W317 x H78 x D265 mm: excluding projection portion)Connected to AC 100 V plugHigh speed data processing by 32 bit CPU

Internet

Monitoring center Monitoring center or office

Customer Customer

max. 6units max. 6units

Commitment of maintenance program is required

MHI i-smartcommunicationterminal (iSCT)

MHI i-smartcommunicationterminal (iSCT)

Central monitoring equipment

Emergency response Connect to Customer’s central monitoring equipment, communication with PLC.

Preventive maintenance

24hrs and 365days remote monitoring

Operating statusSensor valueOrder frequency value

Proposal for economic efficiency and energy-saving

Feature of MHI specialized communication terminal

MHI Thermal Systems*

Notes: Cable connection work between chiller and iSCT: customer's scope

1)

2)

3)

Features

PLC: MELCO MELSEC or Modbus

PLC*2

*2

● Chiller body: Rust preventive paint(painting color:Munsell N-5● Control panel inverter: Munsell 5Y7/1, semi gloss

Either A or B, but not both can be output by the terminal switching- A:“Condenser Pressure” or B: “Set Chilled Water Leaving Temperature” - A: “Evaporator Pressure” or B:“Oil Tank Temperature”- A:“Chilled Water Leaving Temperature” or B:“Differential Oil Pressure” - A:“Chilled Water Entering Temperature” or B:“Intermediate Pressure”

Dry contact make (continuous) signal　Wet contact pulse (instantaneous) signalWet contact make (continuous) signal

Power consumption is controlled.

Extra-low load control.(Continuous Control between approx 0% and 100%)

Cold insulation is performed according to MHI Thermal Systems* cold insulation procedure before delivery. (The nitrile-based synthetic rubber cold insulation is used as standard.)

Signals for “operation”,“error”,“start/stop position remote”,“alarm data”, “inverter operation” and “low load”can be output.

Continuous control between 10% and 100% of cooling capacity (ON/OFF control at less than 10%)

Color can be specified by customer.Chiller body will be painted according to MHI Thermal Systems* procedure before delivery.Only standard colour is abailable for control panel and inverter

2-divided (condenser+evaporator, compresser+inverter+other device)3-divided (condenser,evaporator, compresser+inverter+other device)

Ball cleaning device can be installed.

Individual failure signal can be output

※The customer may need to input chilled water flow signals.※The customer may need to input chilled water flow signals.

Minister,s Prize, The Ministry of Economy, Trade and Industry

Sponsor : The Energy Conservation Center, Japan

FY2013FY2013

9：20 9：30 9：40 9：50 10：00 10：10 10：20 10：00 10：05 10：10 10：15 10：20 10：25 10：30 10：35 10：400

5

10

15

20

25

0

5

10

15

20

2570

60

50

40

30

20

10

0

70

60

50

40

30

20

10

0Tem

p. o

f chil

led w

ater

/coll

ing w

ater

Load

[%], I

NV fr

eque

ncy [

Hz]

Load

[%], I

NV fr

eque

ncy [

Hz]

Tem

p. o

f chil

led w

ater

/coll

ing w

ater

Status trend graph for 0% load operation <Reference data> Startup Characteristics from standby operation <Reference data>

Entering temp. of colling water

Entering temp. of colling water

INV frequencyINV frequency

Entering temp. of chilled waterEntering and leaving temp. of chilled water

Entering and leaving temp. of chilled water

Load rate

Load rate

OthersItem Standard Option

Consult MHI Thermal Systems* for Details

Capacity control

Individual error display

Remote start/stop signal

Demand operation

External signal output (digital)

External signal output (analog)

Painting

Shipping style

Cold Insulation

Installation of ball cleaning device

Error is displayed on LCD

No-voltage pulse (instant)signal

−

−

Undivided

Not insulation (customer’s scope )

−

Individual failure signal output is possible by communication and digital signal output

7 8

●The temporary boiler for initial trial operation of cooling plant will be unnecessary.●Stand by operation at around zero percent load is available and accommodates rapid rise in loads.●Can continuously operate in a very low load range where conventional models were

operated with the ON/OFF control, and minimize the fluctuation of chilled water - leaving temperature.

For energy saving of air conditioning equipment, it is possible to install more than one chilled and cooling water pumps, change the number of unit of start/stop, and use an inverter for controlling the flow rate corresponding to the load. It is possible to operate chillers between 50% and 100% of rated flow rate of chilled water and cooling water (The range varies depending on the rated flow conditions.)

Extreme Low Load Function

Variable Flow Rate Function The number of operating chillers depends not on heat loads but on chilled water flow rates. The capacity to accommodate more than the rated chilled water flow eliminates the need for operating extra chiller and reduces the total energy consumption as a result.

Excess Flow Rate Function ※patented technology

Instantaneous Power Failure Restart●Can detect power failure due to voltage drop, shutdown the chiller, and automatically restart after recovery from the power failure.

※patented technology

Low GWP Refrigerant

Option

Variable speed

Optimize load distribution and operation number

Multiple chiller controlChilled / hot water variable flow rate control (Primary pump)Cooling water variable flow rate controlCooling tower operation/ fan controlCoolling water bypass valve controlChilled / hot water bypass valve controlChilled / hot water secondary pump control

12℃20℃25℃32℃

5

10

15

20

25

30

0 20 40 60 80 100

COP

Load [％]Load [％] 0 20 40 60 80 100

Improvement of system COP by optimal control which gets the best perfomance out of centrifugal chillerVarious energy-saving control functions

・Improvement in COP of centrifugal chiller・Chilled water variable flow control・Cooling water variable flow control

Cooling towerCooling water pumpChilled water pumpCentrifugal chiller

Easy to use for an automaticoptimization of the whole system

Heat source control systemEne-Conductor

Pump Pump

Cooling Tower

Starter panel(INV panel)

Air-conditioningUnit

Chiller

Heat Source Control SystemMore Energy saving

Ene-Conductor

Control functions of Ene-Conductor

Estimation condition : chiller 400 RT x 2units, Building air conditioner useNotes: Auxilliary equipment : contrl by inverter

Constant speed chiller(GART series)

Variable speed chiller(GART-I series)

Entering temp. of cooling water

In the case where the system combines multiple chillers with different performance, the Ene-Conductor automatically calculates the best load for each chiller to obtain the highest COP of the complete system.

Control over 80% load

Control 30% to 60% load

Optimum load range

Optimum load range

0 0

654321

200

400

600

800

1,000

1,200

3.52.1

5.9

65%down

Estimation example

Elec

tric

pow

er c

onsu

mpt

ion

［M

Wh/

year］

Syst

em C

OP

Previous centrifugal

chiller

INV centrifugal

chiller

INV centrifugal

chiller+

Ene Conductor

SystemCOP

5

10

15

20

25

30

COP

*MHI Thermal Systems: Mitsubishi Heavy Industries Thermal Systems, Ltd.

RS232C

RS485RS485

FeaturesThe remote monitoring program enables various performances.1) Monitoring the operation status2) Emergency response/treatment and report of the result3) Submission of monthly report of data and customer’s observation4) Proposal for preventive maintenance and economical use based on

the result of the analysis of accumulated data This program is not available for poor quality internet connections environment.

Remote Monitoring Program (WEB communication)

24-hour and 365-day remote monitoring program is suitable for maintaining the performance and function of the centrifugal chiller. Output operation data at customer’ s central monitor through MHI i-smart

communication terminal.Operation data can be used for the following items at customer’s central monitor.

- Trend - Operation status of chillers - Daily report and monthly report etc.

Total connection/transmission distance of RS485 with max. 500 m

Central Monitoring

Compact size (W317 x H78 x D265 mm: excluding projection portion)Connected to AC 100 V plugHigh speed data processing by 32 bit CPU

Internet

Monitoring center Monitoring center or office

Customer Customer

max. 6units max. 6units

Commitment of maintenance program is required

MHI i-smartcommunicationterminal (iSCT)

MHI i-smartcommunicationterminal (iSCT)

Central monitoring equipment

Emergency response Connect to Customer’s central monitoring equipment, communication with PLC.

Preventive maintenance

24hrs and 365days remote monitoring

Operating statusSensor valueOrder frequency value

Proposal for economic efficiency and energy-saving

Feature of MHI specialized communication terminal

MHI Thermal Systems*

Notes: Cable connection work between chiller and iSCT: customer's scope

1)

2)

3)

Features

PLC: MELCO MELSEC or Modbus

PLC*2

*2

● Chiller body: Rust preventive paint(painting color:Munsell N-5● Control panel inverter: Munsell 5Y7/1, semi gloss

Either A or B, but not both can be output by the terminal switching- A:“Condenser Pressure” or B: “Set Chilled Water Leaving Temperature” - A: “Evaporator Pressure” or B:“Oil Tank Temperature”- A:“Chilled Water Leaving Temperature” or B:“Differential Oil Pressure” - A:“Chilled Water Entering Temperature” or B:“Intermediate Pressure”

Dry contact make (continuous) signal　Wet contact pulse (instantaneous) signalWet contact make (continuous) signal

Power consumption is controlled.

Extra-low load control.(Continuous Control between approx 0% and 100%)

Cold insulation is performed according to MHI Thermal Systems* cold insulation procedure before delivery. (The nitrile-based synthetic rubber cold insulation is used as standard.)

Signals for “operation”,“error”,“start/stop position remote”,“alarm data”, “inverter operation” and “low load”can be output.

Continuous control between 10% and 100% of cooling capacity (ON/OFF control at less than 10%)

Color can be specified by customer.Chiller body will be painted according to MHI Thermal Systems* procedure before delivery.Only standard colour is abailable for control panel and inverter

2-divided (condenser+evaporator, compresser+inverter+other device)3-divided (condenser,evaporator, compresser+inverter+other device)

Ball cleaning device can be installed.

Individual failure signal can be output

※The customer may need to input chilled water flow signals.※The customer may need to input chilled water flow signals.

Minister,s Prize, The Ministry of Economy, Trade and Industry

Sponsor : The Energy Conservation Center, Japan

FY2013FY2013

series

HFO-1233zd(E)

Next generation centrifugal chiller

Printed in Japan

MTHSS004, 1903 R6

Variable speed

MHI Centrifugal Chiller

527kW (150RT) ~ 2461kW (700RT)

ETI-

seriesVariable speedETI-

Low GWP Refrigerant

SPEC: EMS-544567 R2

FY2018FY2018

Minister,s Prize, The Ministry of Economy, Trade and Industry

Sponsor : The Energy Conservation Center, Japan

· Because of our policy of continuous improvement, we reserve right to make changes in all specifications without notice.· Option items are included in the pictures of chiller. · Unauthorized reproduction is prohibited.

（Wholly-owned subsidiary of MITSUBISHI HEAVY INDUSTRIES, LTD.）16-5, Konan 2-chome, Minato-ku, Tokyo 108-8215, Japanhttps://www.mhi-mth.co.jp/en/

Mitsubishi Heavy Industries Thermal Systems, Ltd.

Certified ISO 14001Our factories areISO9001 andISO14001 certified.

Certified ISO 9001

Certificate number: JQA-0709Date of certificate: December 16, 1994

Registration number: 02115Q10571R0SDate of certificate: May 21, 2015

Registration number: 02115E10252R0SDate of certificate: May 21, 2015

Certificate number: YKA4005636Date of certificate: December 27, 2017