Contact: Toshiba Carrier Corporation, Products Planning Dept.Tel: +81-44-331-7414URL: http://www.toshiba-carrier.co.jp

Install a tion in P r actice or Schedule

E f f ects or R ema r ks O-36

Domestic Toshiba Carrier Corporation enjoys the highest market share of module-type heat pump chilling units that are well received by the market due to their high-efficiency operation and risk distribution feature. More than 24,000 units have been shipped so far. They have been delivered to more than 1,800 companies such as an electri-cal equipment manufacturer in Yamagata pref., machine tool manufacturer in Hyogo pref., transport machine manufacturer in Aichi pref., machine component manufac-turer in Niigata pref., electronic component manufacturer in Gifu pref., nursing home in Akita pref., and data center in Tokyo. For example, the use of boilers can be lessened to reduce the CO2 emission in constant-temperature and constant-humidity air conditioning by having cooling and heating coexist in one module group and thus achieving perfect heat source conversion as shown in the figure on the right. This method not only reduces the CO2 emission but also simplifies operation and maintenance.

Overseas In 2014, this system started to be exported to Korea on a full-fledged basis and 20 units have been delivered to hospitals, hotels, etc. Furthermore, overseas sales are expanding mainly for use by Japanese companies in Asia and Europe.

� Examples of reducing effects for primary energy consumption and CO2 emission for general air conditioning applications In comparison with gas absorption water chiller-heaters or the combinations of centrifugal chillers and boilers, this

system can achieve the energy saving effects shown below even for general air conditioning applications which switch between chilling operation in summer and heating operation in winter.

� Examples of reducing effects for primary energy consumption and CO2 emission for industrial applications In comparison with gas absorption water chiller-heaters or centrifugal chillers, this system can achieve the energy

saving effects shown below even for industrial applications which conduct cooling operation throughout the year.

� Received awards Fiscal 2011: Minister Prize of Economic, Trade and Industry in Energy Conservation Award Fiscal 2011: Technology Award from Japan Society of Refrigerating and Air Conditioning Engineers Fiscal 2011: Promotion Foundation for Electrical Science and Engineering Award from the Promotion Founda-

tion for Electrical Science and Engineering Fiscal 2013: Environment Minister's Award for Global Warming Prevention Activity Fiscal 2014: Energy Winner Award from Citizens' Alliance for Consumer Protection of Korea

Electricity Gas

51 % reduction 65 %

reduction

49 % reduction

38 % reduction

Electricity (Main) Electricity (Auxiliary) Gas Main Auxiliary Main Auxiliary Main Auxiliary Electricity Gas Electricity Gas

(130W/m2) Cooling Heating Cooling April to October Heating November to March

5 days per week 14 hours per day AMEDAS Tokyo average (2000-2005) Toshiba's setting Load factor

Estimated scale

Peak load

Operation period

Operation days Operation hours Outside air temperature

Estimation conditions Absorption water chiller-heater Centrifugal chiller

This product Conversion coefficient for energy use

CO2 emission coefficient

Prim

ary

ener

gy c

onsu

mpt

ion

per y

ear [

GJ]

Absorption water chiller-heater

Centrifugal chiller + Boiler This product Absorption water

chiller-heater Centrifugal chiller

+ Boiler This product

CO2 e

miss

ion p

er ye

ar [t

-CO

2]

Cooling tower, cold/warm water pump, and cooling water pump RS-C30EV (equivalent to 300RT) + Boiler Cooling tower, cold/warm water pump, and cooling water pump 12 units connected Cold/warm water pump

71 % reduction

18 % reduction

58 % reduction

18 % reduction

Electricity Gas Electricity (Main) Electricity (Auxiliary) Gas Main Auxiliary Main Auxiliary Cooling tower, cold/warm water pump, and cooling water pump Main 12 units connected Auxiliary Cold/warm water pump Electricity Gas Electricity Gas

Load Chilling Operation period Chilling January to December

365 days per year 24 hours per day AMEDAS Tokyo average (2000-2005)

Operation days Operation hours Outside air temperature

Estimation conditions Absorption water chiller-heater

Centrifugal chiller

This product

Prim

ary

ener

gy c

onsu

mpt

ion

per y

ear [

GJ]

Absorption water chiller-heater Centrifugal chiller This product Absorption water

chiller-heater Centrifugal chiller This product

CO2 e

miss

ion p

er ye

ar [t

-CO

2]

Conversion coefficient for energy use CO2 emission coefficient

Cooling tower, cold/warm water pump, and cooling water pump RS-C30EV (equivalent to 300RT)

Hum

idifie

r

Air conditione

Exhaust fan

Outside air

Temperature Humidity

2-system HP/AC Valve control output Air conditioner linkage output

Cooling Heating

This product

Constant-temperature and constant-humidity chamber

Keywords

Features

Basic Concept or Summary

Highly Efficient Module-type Air-Cooled Heat Pump Chilling Unit　

device Z4 electricity

Toshiba Carrier Corporation

O-36 Y2 E29 electrical machinery

◆ Industry-leading energy saving performance The development of an inverter twin rotary compressor with the world's highest capacity and other

technologies has reduced annual energy consumption by 58 % and CO2 emission by 71 % in compari-son with gas absorption water chiller-heaters on the assumption that chilling operation is conducted for industrial applications throughout the year.

◆ Risk diversification using a unique module-in-module configuration One chiller module consists of four independent refrigerant circuits. If one refrigerant circuit fails and

stops, other refrigerant circuits run as backup to continue the operation and alleviate performance degradation. If one refrigerant circuit is conducting defrosting during heating operation, other refriger-ant circuits continue the heating operation to alleviate a drop in the water supply temperature.

◆ Coexistence of high performance and downsizing using the X-frame structure, available only from Toshiba in the industry

The X-frame structure, Toshiba's proprietary design, consists of U-shaped air heat exchangers arranged in a V shape. This design has reduced the product footprint by 58 % in comparison with chillers 15 years ago while expanding the air heat exchange area. Even if more than one chiller is lined up with little clearance, an air introduction path to the air heat exchangers can be secured, and a main-tenance space can also be secured.

◆ Wide range of applications All of the compressors, blower fans, and cold/warm water pumps are equipped with inverter control,

and the multiple modules including them are controlled for optimal operation in a newly developed group control system. Outlet temperature control and variable flow rate control of cold/warm water have been realized. This system can be used for a wide range of applications from energy-saving air conditioning of varied buildings to objective temperature control at data centers and production process temperature control at factories. It can also be employed to solve problems such as productiv-ity improvement and quality stability.

The major component technologies of this product are shown below.

S3 ZEB/BEMS

Diagonal placement of U-shaped coilsCoexistence of downsizing and high-efficiency operation

New evaporation condenser nozzleHigh-efficiency water spray using vaporization heat

Microcomputer controlDetailed operation control of one module or multiple units

Inverter rotary compressorExpansion of operation rangeUltra-high efficient partial load operationPrecision control of cold water temperature

Four independent refrigerant circuitsDistribution of defrosting operation, risk distribution, and improved serviceability

Adoption of narrow-diameter copper tubeImprovement of heat transmission due to optimized design of R410A

Built-in inverter pump (compatible with variable flow volume)Check valves and strainers available as standard equipment

Plate-type water heat exchangertwo units in serial connectionImproved water-measurement heat transfer performance and support oflarge temperature differences

Innovative large-diameter fan and high-efficiency DC motorHigh-efficiency running and larger air volume

Pressure variation

Ｐ0

Ｐ1

Pressure

Water supply volumeＱ0Ｑ1

25℃ 55℃

15℃ 30℃4℃

Chilling operationBrine

35℃

5℃ 25℃

Expansion Expansion

Expansion

The X-frame structure ensures an air inlet and service space.

By ensuring air flow, high-efficiency operation is achieved even with a decreased footprint.

In case a failure occurs, not only the backup operation for each module but also the backup operation for each refrigerant circuit inside a module is available.

The defrosting operation is distributed inside a module to decrease a drop in the hot water temperature during the defrosting operation.

The variable pressure variable flow control contributes to power saving of the entire system.

A rise in the refrigerant temperature in the evaporation process has improved the operation efficiency by 4 %.

An inverter twin rotary compressor with the world's highest capacity and superior partial load characteristics has been developed.

The expansion of operation range (water temperature) has made the device compatible with various industrial applications.

Back

up

oper

atio

n

Back

up

oper

atio

n

Back

up

oper

atio

n

Failu

re

Defro

stin

g op

erat

ion

Norm

al

oper

atio

n

Norm

al

oper

atio

n

Norm

al

oper

atio

n

Heating operationHeating operation

Condensation

Evaporation

Motive power

Outside air

Entropy

Reduced motive power

Cold water

Tem

pera

ture

Exp

ansi

on

Com

pres

sion

Motive power

144

Source:JASE-W Japanese Smart Energy Products & Technologieshttps://www.jase-w.eccj.or.jp/technologies/index.html

Contact: Toshiba Carrier Corporation, Products Planning Dept.Tel: +81-44-331-7414URL: http://www.toshiba-carrier.co.jp

Install a tion in P r actice or Schedule

E f f ects or R ema r ks O-36

Domestic Toshiba Carrier Corporation enjoys the highest market share of module-type heat pump chilling units that are well received by the market due to their high-efficiency operation and risk distribution feature. More than 24,000 units have been shipped so far. They have been delivered to more than 1,800 companies such as an electri-cal equipment manufacturer in Yamagata pref., machine tool manufacturer in Hyogo pref., transport machine manufacturer in Aichi pref., machine component manufac-turer in Niigata pref., electronic component manufacturer in Gifu pref., nursing home in Akita pref., and data center in Tokyo. For example, the use of boilers can be lessened to reduce the CO2 emission in constant-temperature and constant-humidity air conditioning by having cooling and heating coexist in one module group and thus achieving perfect heat source conversion as shown in the figure on the right. This method not only reduces the CO2 emission but also simplifies operation and maintenance.

Overseas In 2014, this system started to be exported to Korea on a full-fledged basis and 20 units have been delivered to hospitals, hotels, etc. Furthermore, overseas sales are expanding mainly for use by Japanese companies in Asia and Europe.

� Examples of reducing effects for primary energy consumption and CO2 emission for general air conditioning applications In comparison with gas absorption water chiller-heaters or the combinations of centrifugal chillers and boilers, this

system can achieve the energy saving effects shown below even for general air conditioning applications which switch between chilling operation in summer and heating operation in winter.

� Examples of reducing effects for primary energy consumption and CO2 emission for industrial applications In comparison with gas absorption water chiller-heaters or centrifugal chillers, this system can achieve the energy

saving effects shown below even for industrial applications which conduct cooling operation throughout the year.

� Received awards Fiscal 2011: Minister Prize of Economic, Trade and Industry in Energy Conservation Award Fiscal 2011: Technology Award from Japan Society of Refrigerating and Air Conditioning Engineers Fiscal 2011: Promotion Foundation for Electrical Science and Engineering Award from the Promotion Founda-

tion for Electrical Science and Engineering Fiscal 2013: Environment Minister's Award for Global Warming Prevention Activity Fiscal 2014: Energy Winner Award from Citizens' Alliance for Consumer Protection of Korea

Electricity Gas

51 % reduction 65 %

reduction

49 % reduction

38 % reduction

Electricity (Main) Electricity (Auxiliary) Gas Main Auxiliary Main Auxiliary Main Auxiliary Electricity Gas Electricity Gas

(130W/m2) Cooling Heating Cooling April to October Heating November to March

5 days per week 14 hours per day AMEDAS Tokyo average (2000-2005) Toshiba's setting Load factor

Estimated scale

Peak load

Operation period

Operation days Operation hours Outside air temperature

Estimation conditions Absorption water chiller-heater Centrifugal chiller

This product Conversion coefficient for energy use

CO2 emission coefficient

Prim

ary

ener

gy c

onsu

mpt

ion

per y

ear [

GJ]

Absorption water chiller-heater

Centrifugal chiller + Boiler This product Absorption water

chiller-heater Centrifugal chiller

+ Boiler This product CO

2 em

ission

per

year

[t-C

O2]

Cooling tower, cold/warm water pump, and cooling water pump RS-C30EV (equivalent to 300RT) + Boiler Cooling tower, cold/warm water pump, and cooling water pump 12 units connected Cold/warm water pump

71 % reduction

18 % reduction

58 % reduction

18 % reduction

Electricity Gas Electricity (Main) Electricity (Auxiliary) Gas Main Auxiliary Main Auxiliary Cooling tower, cold/warm water pump, and cooling water pump Main 12 units connected Auxiliary Cold/warm water pump Electricity Gas Electricity Gas

Load Chilling Operation period Chilling January to December

365 days per year 24 hours per day AMEDAS Tokyo average (2000-2005)

Operation days Operation hours Outside air temperature

Estimation conditions Absorption water chiller-heater

Centrifugal chiller

This product

Prim

ary

ener

gy c

onsu

mpt

ion

per y

ear [

GJ]

Absorption water chiller-heater Centrifugal chiller This product Absorption water

chiller-heater Centrifugal chiller This product

CO2 e

miss

ion p

er ye

ar [t

-CO

2]

Conversion coefficient for energy use CO2 emission coefficient

Cooling tower, cold/warm water pump, and cooling water pump RS-C30EV (equivalent to 300RT)

Hum

idifie

r

Air conditione

Exhaust fan

Outside air

Temperature Humidity

2-system HP/AC Valve control output Air conditioner linkage output

Cooling Heating

This product

Constant-temperature and constant-humidity chamber

Keywords

Features

Basic Concept or Summary

Highly Efficient Module-type Air-Cooled Heat Pump Chilling Unit　

device Z4 electricity

Toshiba Carrier Corporation

O-36 Y2 E29 electrical machinery

◆ Industry-leading energy saving performance The development of an inverter twin rotary compressor with the world's highest capacity and other

technologies has reduced annual energy consumption by 58 % and CO2 emission by 71 % in compari-son with gas absorption water chiller-heaters on the assumption that chilling operation is conducted for industrial applications throughout the year.

◆ Risk diversification using a unique module-in-module configuration One chiller module consists of four independent refrigerant circuits. If one refrigerant circuit fails and

stops, other refrigerant circuits run as backup to continue the operation and alleviate performance degradation. If one refrigerant circuit is conducting defrosting during heating operation, other refriger-ant circuits continue the heating operation to alleviate a drop in the water supply temperature.

◆ Coexistence of high performance and downsizing using the X-frame structure, available only from Toshiba in the industry

The X-frame structure, Toshiba's proprietary design, consists of U-shaped air heat exchangers arranged in a V shape. This design has reduced the product footprint by 58 % in comparison with chillers 15 years ago while expanding the air heat exchange area. Even if more than one chiller is lined up with little clearance, an air introduction path to the air heat exchangers can be secured, and a main-tenance space can also be secured.

◆ Wide range of applications All of the compressors, blower fans, and cold/warm water pumps are equipped with inverter control,

and the multiple modules including them are controlled for optimal operation in a newly developed group control system. Outlet temperature control and variable flow rate control of cold/warm water have been realized. This system can be used for a wide range of applications from energy-saving air conditioning of varied buildings to objective temperature control at data centers and production process temperature control at factories. It can also be employed to solve problems such as productiv-ity improvement and quality stability.

The major component technologies of this product are shown below.

S3 ZEB/BEMS

Diagonal placement of U-shaped coilsCoexistence of downsizing and high-efficiency operation

New evaporation condenser nozzleHigh-efficiency water spray using vaporization heat

Microcomputer controlDetailed operation control of one module or multiple units

Inverter rotary compressorExpansion of operation rangeUltra-high efficient partial load operationPrecision control of cold water temperature

Four independent refrigerant circuitsDistribution of defrosting operation, risk distribution, and improved serviceability

Adoption of narrow-diameter copper tubeImprovement of heat transmission due to optimized design of R410A

Built-in inverter pump (compatible with variable flow volume)Check valves and strainers available as standard equipment

Plate-type water heat exchangertwo units in serial connectionImproved water-measurement heat transfer performance and support oflarge temperature differences

Innovative large-diameter fan and high-efficiency DC motorHigh-efficiency running and larger air volume

Pressure variation

Ｐ0

Ｐ1

Pressure

Water supply volumeＱ0Ｑ1

25℃ 55℃

15℃ 30℃4℃

Chilling operationBrine

35℃

5℃ 25℃

Expansion Expansion

Expansion

The X-frame structure ensures an air inlet and service space.

By ensuring air flow, high-efficiency operation is achieved even with a decreased footprint.

In case a failure occurs, not only the backup operation for each module but also the backup operation for each refrigerant circuit inside a module is available.

The defrosting operation is distributed inside a module to decrease a drop in the hot water temperature during the defrosting operation.

The variable pressure variable flow control contributes to power saving of the entire system.

A rise in the refrigerant temperature in the evaporation process has improved the operation efficiency by 4 %.

An inverter twin rotary compressor with the world's highest capacity and superior partial load characteristics has been developed.

The expansion of operation range (water temperature) has made the device compatible with various industrial applications.

Back

up

oper

atio

n

Back

up

oper

atio

n

Back

up

oper

atio

n

Failu

re

Defro

stin

g op

erat

ion

Norm

al

oper

atio

n

Norm

al

oper

atio

n

Norm

al

oper

atio

n

Heating operationHeating operation

Condensation

Evaporation

Motive power

Outside air

Entropy

Reduced motive power

Cold water

Tem

pera

ture

Exp

ansi

on

Com

pres

sion

Motive power

145

Source:JASE-W Japanese Smart Energy Products & Technologieshttps://www.jase-w.eccj.or.jp/technologies/index.html