fy2018 refrigerant
TRANSCRIPT
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