「日本イトミック」

エコキュート

Natural refrigerant（CO2） heat pump water heater

Bath, shower, washing.

The products are subject to change in specifi cations for improvement without notice.

Received the 9th Award for Power Load Leveling Equipment and Systems from the chairman of the Heat Pump & Thermal Storage Technology Center of Japan.

Prize-winning

Promoting Green Purchasing.

Registered as specified procurement items in the Law on

The most utilized Eco-cute for industrial use in Japan is...

Low-costLow-cost andand Eco-friendlyEco-friendly heat pump water heater. heat pump water heater.

ITOMICIndustrial-useEco-cuteEco-cute

For

1

【Kitchen】【Kitchen】

【Bathroom】【Bathroom】

TapsTapsDish washerDish washer

Floor washingFloor washing

ShowerShower

BathtubBathtub

Wash basinWash bas

ITOMIC Indhas

Promoting Green Purchasing.

Registered as specified procurement items in the Law on

ITOMIC brand Eco-cute is the fi rst of its kind sold in the world. Itomic has know-how accumulated for half a century as a dedicated manufacturer of water heaters-we off er a wide variety of hot-water supply heaters.

Storage tank unit 3,000ℓ Heat pump unit Remote controller

Kubota Corporation Keiyo FactoryNippon Express Co., Ltd.

Hosei University Junior andSenior High School

Trest-Inn Tamachi1The Asahi shimbun Company

2

Ai r

【Rest room】【Rest room】

Eco-cute heats water with natural air.

System fl ow → P.3 ～4

Wash basinsinITOMIC Industrial-use Eco-cute is the most utilized Eco-cute for industrial use in Ja-pan.

【Business category】　Nursery homes　Offi ces　Factories　Education facilities　Public facilities　Hotels　Dormitories　Restrants...and more!

ITOMIC Ind strial se Eco

Sales record of Eco-cute

ustrial-use Eco-cuteextensive experience in supplying hot water.

Nursery homes

Offi ces

FactoriesFa tFactEducationFacilitiesEdd tiEdducation

Public Facilities

bliublic

Hotelst l

DormitoriesNursNurshom

Other

Customers’ success stories in achieving CO2 and cost reduc-tions using Eco-cute

see P.8

Jan. 2008

Ajigaura Hot Spring NOZOMI

Nursery home Mominoki・Suginami Nursery home Livein SakuraMusashi Institute of Technology

2

3

※Construction b

Storage tank unit

Heat pump unit

Low temperature

High tempera-ture

Hot water（90℃）

A:Compressor, B:Expansion valve, C:Circulation pump

Supply hot water

Water

Heat up water

A

B C

CO2refrig-erant cycle

Absorb heat from the air

Heat excahanger（for water）

Heat excahanger（for air）

Absorb heat from the air and transfer it to 1. the heat exchanger (for air), then deliver the heat to refrigerant.

Warmed up refrigerant is pressed by com-2. pressor and becomes hotter.

Heat of refrigerant is transferred to water 3. by a heat exchanger (for water) to boil wa-ter.

The refrigerant that loss heat is sent to 4. the heat exchanger (for air) again.

④

①

②③

System fl ow

Key features

Low-running cost

300yenOperation cost per day (Using industrial electricity of Tokyo Electric Power Company, ten hours per day, 90℃ , 3 tons, which is equivalent to 60℃ , 4.5 tons)

Reduction inReduction in

COCO22 emissions emissions

1/6Compared with a gas boiler, it can drastically reduce CO2 emissions if changed from other types of water heaters.

This is why many customers choose ITOMIC Industrial-use Eco-cute.

Safe and Easyoperation

No combustion.Out of boiler codeOut of boiler code*.

Bring water to

High temperatures

90℃ Plenty of hot water for various use.

Details→seeP.16

Details→seeP.15

Eco-friendlyEco-friendly

0Ozone-Depleting PotentialGlobal warming potential compared

with new refrigerant.approx

11700

Storage tank unit3,000ℓ（500ℓ×6）

Heat pump unit

(*Note that the regulations regarding boilers vary in countries of use.)

4

by customers

※

※

R

←Supply water

※Boil water

Bathroom Kitchen Rest room

Usage

Details→seeP.15

Environmental performance depending on refrigerant type

Unique operation mode

Refrigerant ODP※1 GWP※2 Necessity of collection

CFC Refrigerant R12 1 8,500

YesHCF Refrigerant R22 0.055 1,700HFC Refrigerant R410A 0 1,700 〃 R134A 0 1,300Natural Refrigerant R744（CO2） 0 1 No

These values are based on our estimation. ※1：ODP=Ozone Depletion Potential.※2：GWP=Global Warming Potential.

The refrigerant used in Eco-cute is a natural resource of CO2

（R744）. So it is eco-friendly and no collection is needed on disposal. You can make an appeal for a more eco-conscious facility.

Eco-cute has two unique operation mode, which reduces unnecessary running.

Name Display contents, application

① LCDNormal operation: Current water temperature (℃ ) is shown.Abnormal condition: The error number is shown.

② Operation lampNormal operation: Orange lamp is lit.Abnormal condition: Orange lamp is fl ashing.

③ Start/Stop/Re-set switch

Normal operation: It is used to turn the operation on/off .

Abnormal condition: After error cause is cleared, push the button to reset the error display.

④ Remaining water indicator lamps Remaining water volume in Eco-cute is shown by the lamps.

ITOMIC Industrial-use Eco-cute includes one remote control per unit.

Refer to page 14, “Remote control installation.”

Accessory: Remote control

①

②

③

④

5

Standard model; Heat pump unit and 3,000 liter storage tank unit.

To select the best Eco-cute

Do you want to reduce initial cost?Reuse existing water heater equipment if available. Combine cost-eff ective storage tanks or other water heat-ers available.

In case the hot-water supply load varies...Use boilers that combust gas or fuel oil together.

Do you prefer a more eco-friendly system?Use solar electrical generators or solar hot-water systems together.

Do you need larger volume of hot water?Add heat pump units and storage tank units. Combine large capacity heater-equipped open-type storage tank.

Product demonstration tour

We organize tours for product demonstration. We'll show you our head factory (Tokyo, Japan) and our customer's actual sites where Eco-cute is in use. You can see the fi rsthand eff ectiveness.

For details, feel free to contact us.

Heat pump unit

Storage tank unit

The standard model for the ITOMIC Industrial-use Eco-cute consist of one heat pump unit, one 3,000 liter storage tank unit, and one remote control. However, depending on the hot-water supply conditions of the facility, customization and combinations with other water heater sys-tems are available. Here are the some tips for selecting the best products.

To maximize the performance;

These are just examples. Each has advantages and disadvantages. Feel free to contact us for consultation.

Options → see P.11

Do you need smaller volume of hot water?Change to a smaller tank.

6

System composition examples

This is a standard system composed of an Eco-cute heat pump unit and a storage tank unit only. When a large volume of hot water is required, multiple units of Eco-cute are connected in parallel or installed in each hot-water supply area.

When multiple units of Eco-cute are installed, an op-tional control function for multiple units can be built if desired. （→See P.11 "Change in specifi cations"）

Standard system

Boiler combination system

Installation example → see P.14

Eco-cute

Eco-cute

Boiler

＋

Eco-cute

Boiler

When stored hot water runs out...

Hot-water sup

ply load

→

Time →

To prevent undesirable temperature drop at the supply outlet. Our electric in-line heater EIL can be added as a booster to circulation process, or changing the system to Heat-up circulation specification is another option. （→See P.11）

In case the circulation load is low… Heat-up circula-• tion specifi cations is recommended.

In case the circulation load is high… The electric in-• line heater (EIL) is recommended.

循環系統

Circulated hot water system

Eco-cute

EILEIL

Circulated hot water system with EILThe heat-up circulation specifi cation does not need an EIL. Circulated water (return) comes into the Eco-cute.

Because variation of demand occurs from season to season and/or weekdays, Eco-cute alone may not be able to supply necessary quantity. If that is the case, we recommend this system to cover the defi ciency, where Eco-cute as primary supplier and boilers to supplement.In addition, adding an Eco-cute system into an exist-ing water heater system can lower the operating cost of the entire system.

The boiler starts opera-tion and cover the defi -ciency.

7

Length of pipes can be longer, which reduces design restraints. ▶

Reuse of existing equipment in combination with boilers reduc- ▶es the eff ort of design, installation, and maintenance.

We have various types of electric water heaters from table-top ▶to heavy volume applications. Therefore, all water heaters in a facility can be prepared at the same time.

Eco-cute is a high effi ciency water heater using minimum of electric power. ▶

Electricity is energy with little fl uctuation in price. ▶

The initial cost will decrease when reusing existing equip- ▶ment or in combination with storage tanks and combus-tion type boilers.

Because Eco-cute is out of boiler code*, maintenance ▶cost can be held down. (*Note that the regulations regarding boilers vary in countries of use.)

Unique energy-saving operation mode reduces unneces- ▶sary running.

CO ▶ 2 emission are much less than from combustion type, which is eff ective in achieving the target of CO2 emission reduction.

Only the Eco-cute CO ▶ 2 refrigerant is eco-friendly because both the global warming potential and ozone depletion potential are minimal.

Diff erent from boilers that burn fuel, Eco-cute emits no exhaust ▶gas and keeps the air clean.

Because no ignitable fuel is used, facilities are safe. ▶

CO ▶ 2 refrigerant in Eco-cute has no harm on the environment even during the production and disposal process.

ITOMIC Industrial-use Eco-cute

Meets your needs

Cost reduction

Eco-friendly and safe facilities

Elimination of time and eff ort for installation and maintenance

8

Customer review

NIPPON EXPRESS CO., LTD.Our Shinagawa Trunk Room off ers cutting-edge storage rooms featuring base-isolation construction and perfect air conditioning. Temperature and humidity are fully con-trolled to secure customers’ valuable belongings. We focus on environmental conservation efforts, including employment of eco-packing materials and support the encouragement campaign of the Team-6 % Committee, ”1 person, 1 day, 1 kg of CO2 emissions reduction." As part of this activity, we installed eco-friendly and small CO2 emitting ITOMIC Eco-cute in the Shinagawa Trunk Room. We expect that i t will largely contribute to re-ductions in CO2 emissions, whose importance is increas-ing. (Accounting section per-sonnel)

The Asahi shimbun CompanyFrom an environmental viewpoint, and in a position to co-operate with reductions in carbon dioxide emissions, we decided to switch from the existing steam boiler to the electric ITOMIC Eco-cute and thus executed the renova-tions. The Asahi shimbun Company believes this activ-ity plays a role in preventing global warming. In addition, safety is improved because Eco-cute is not a boiler. (Mr. Someya of Asahi Tatemono Kanri Co., Ltd.)

Kubota Corporation Keiyo FactoryThe welfare building of our institute had used LPG as a water heater fuel for the bathrooms and lavatories for a long time. However, the Rationalization in Energy Use Law imposed CO2 emission reductions, which forced us to switch to water heater equipment that could ef-fectively and immediately reduce CO2 emissions. During renovation, we installed ITOMIC Eco-cute, which was re-portedly more eff ective in reducing CO2 emissions than other water heater equipment. And now, two years after installation, the remarkable advantage that we obtained by having selected Eco-cute appears in annual CO2 re-duction reports. It contributes to “operations with concern for preserving the natural en-vironment” prompted as part of the Kubota Group Environ-ment Charter. (Mr. Sasaki, Environmental safety group leader)

9

Ajigaura Hot Spring NOZOMIThe installation of two ITOMIC Eco-cute was triggered by a proposal from Tokyo Electric Power Company, Iba-raki Branch, including equipment maintenance and the reduction in running cost, about five years after open-ing the facility. The plan and the actual operation are as follows: on weekdays Eco-cute heats water until the evening and the boiler starts operation after the hot water runs out. This system meets our demand and contributes to the reduction in operating cost. Now we have a plan to expand the facility. On this occasion, Eco-cute will be additionally installed and both the hot water made by eco-friendly Eco-cute and the hot springs ultra-deep water welling from underground of 1504 meters will satisfy guests with the pleasant spa. (Mr. Masaki Kurosawa, company executive)

Trest-Inn TamachiThe primary target on opening in 2003 was energy cost reduction. ITOMIC Eco-cute conformed to the idea. The system uses nighttime electricity at the lowest energy price rate. The added value of easy operation led to the deci-sion to install the equipment. As for the installation effect, we appreciate running cost lower than that for fuel gas, which is in the initial plan. In addition, we consider it an ad-vantage that the safety of our guests is ensured, especially in the hotel business where safety is essential. (Mr. Tana-ka, Manager)

Hosei University Junior and Senior High SchoolIn order to bring out the full energy-saving effect, this institute selected equipment based on an energy-saving plan made by an energy service company. The construc-tion was completed recently, and the energy-saving ef-fect has not been concretely measured yet. However, we are not concerned because the ITOMIC Eco-cute brings out the energy-saving ef fect more than gas and oil boilers. (Mr. Kaneko of Shinryo Corporation)

10

Nursery home Livein SakuraFrom the viewpoint that employment of the All electrifi -cation system would bring relief to residents and would increase added value to the entire facility, we decided to install ITOMIC Eco-cute. Hot water from Eco-cute is used in the kitchens and bathrooms. It is popular among residents that plenty of chlorine-free hot water is avail-able due to the water storage type. (Mr. Ito, institution director)

Nursery home Mominoki・SuginamiOur fi rst priority is resident's safe, comfortable life and that all facilities employ safe, reliable, and eco-friendly All electrifi cation. On opening in March 2006, we select-ed earth- and human-friendly ITOMIC Eco-cute as water heater equipment. “Human-friendly” means safety. Eco-cute that does not use fi re brings no anxiety so that we can off er our basic ideal of a safe and reliable life to our residents. “Earth-friendly” includes the carbon dioxide emission reduction eff ect. In addition, to boil water us-ing relatively cheap night electricity (60 % discount off the daytime) remarkably reduces running cost compared with gas and oil systems. Installation of this product has realized our aim, “earth- and human-fr iendly residence surrounded by nature that let us sense the four sea-sons.” (Mr. Kurahashi, section manag-er of the Planning Department, Toden Life Support Co., Ltd.)

The Yokohama Campus of Musashi Institute of Technology (Faculty of Environmental and Information Studies) became the fi rst educational institution in Japan to acquire the in-ternational environmental standard ISO14001 certifi cation in 1998. The facility (commonly-called “Eco campus”) and the attached junior and senior high schools, which were renovated in 2007, are equipped with a variety of diff erent kinds of state-of-the-art eco-conscious technologies. The key factors that made us decide to employ ITOMIC Eco-cute, as one of above equipment, were not only environmen-tal consideration but also the lowest long-term running cost compared with gas and oil boilers, CO2 emission reduction, and safety to achieve reliable schools for students. Now we receive the full advantages of select-ing the All electrification system and Eco-cute with eco-friendly and energy-saving technologies. (Mr. Shiba, man-ager of the General Aff airs Department, corporate offi ce )

Musashi Institute of Technology

11

Separately provided items (Contact us for their price.)

Vibration-proof stand Distant-control system Snow protection hood Electric in-line heater EIL

Change in storage volume of storage tank unit

　CHP-2500U（2,500ℓ） CHP-2000U（2,000ℓ） CHP-1500U（1,500ℓ） CHP-1000U（1,000ℓ） CHP-500U（500ℓ）

2,3102,310 920

920 920920

1,560 1,5601,560 1,560

Change in specifi cationsSalt resistant and High salt resistant specifi cationsThese specifi cations include a coating applied to the exterior and main components according to the Japan Refrigeration and Air Conditioning Industry Association Standard (JRA9002), which pre-vents sea salt particles fl owing on salt breezes from adhering to the equipment and causing corrosion. In high salt resistant speci-fi cations, the number of coating applications (thickness) is more than that in the salt resistant specifi cations.

Heat-up circulation specifi cationsThese specifications ensure that the hot water is circulated to prevent heat discharge in the plumbing. Select this to build a cir-culated hot water system with initial cost reductions where the hot-water supply load is not high. (However, if the hot-water supply load is high, consider separately provided electric in-line heater EIL instead of this system.)

Antifreeze specifi cationsThese specifi cations include antifreeze band heaters installed in the main parts of the heat pump unit and the storage tank unit to prevent plumbing damage due to freezing in midwinter. (The heat-ers automatically turn on when the outside temperature drops be-low 5℃ .)

Multiple units control specifi cationsWhen more than one Eco-cute is installed in parallel and operated at the same time, variations in the hot-water supply condition of each unit (drift fl ow) will be generated. The multiple units control specifi cations only need wiring between the Eco-cute units. The remaining volume of hot water in each unit is monitored, and the hot-water supply is automatically adjusted to resolve the variation.

Options

Heat pump unit

Conditions ※3

Item A B

Heating ability 21.3kW 26.3kWWater volume 3.8ℓ／min 7.8ℓ／min

Power consumption 7.1kW 6.9kWOperation current 25.2A 24.7A

Biggest stating current 207ANoise level ※4 54db

※1：90℃ mode. ※2：→See P.16

※3： Condition A ：Outside temp DB=7℃ ,WB=6℃ ,Hot water inlet =9℃ /outlet=90℃ ConditionＢ ：Outside temp DB=16℃ ,WB=12℃ ,Hot water inlet=17℃ /outlet=65℃※4： 1m apart from the unit and 1.5m high.

Performance specifi cationPower source Three - pahse 50HzInstallation Outdoor

Setup temperature 90℃※1

Hot water fl ow volume 70 ℓ／min

Refrigerant pressure High-pressure side 15MPaLow-pressure side 8MPa

Decompression valve （Arranged by customer：170kPa →see P.13）Pressure relief valve 190kPa

CompressorType Half closed reciprocating compressor

Motor type Three-phase inducing motorRated output 8.4kW

Crank case heater 100WFan Propeller fan 110W × 2unitsPump Seal less　AC200V-100W

Air heat exchanger Forced convection cross fi nHot water heat exchanger Forced circulation dual tubes

Protection devicesCompressor bursting board, High pressure switch, Low pressure switch, Overcurrent

relay (Compressor, fan, pump)

Refrigerant R744（CO2）Functions Learning function, Seasonal mode

Accessories ※2 Remote controlColor Ivory white

Specifi cations

Storage tank unit（3,000ℓ）

Heat pump unit

It is possible to change the dimensions shown below. Feel free to contact us for consultation.

Specifi cations and Options

For high pressure specifi cations (0.49 MPa), contact us for consultation.

This f igure is for indoor type.

12

A ：Hot water outlet Rc3/4（20A）（A' plug set with cover）B ：Water inlet Rc3/4（20A）（B' plug set with cover）C ：Anchor bolt set hole 4-φ15mmD ：Air heat exchanger room drain Rc1（25A）E ：Cable connectionF ：Outside signal connectionG ：Power supply intakeH ：Water drain during operation Rc3/4（20A）I ：Operation check window （Front）J ：Control panel position （Front）K ：Low pressure gaugeL ：High pressure gauge

① Tank drainage② Supply water Rc3/4（20A, to Heat pump unit）③ Supply water connection④ Hot water inlet Rc3/4（20A, from Heat pump unit）⑤ Anchor bolt setting hole 6-φ22mm⑥ Temperature sensor connection line inlet⑦ Temperature sensor connection box

Capacity（ℓ）

Dimensions（㎜） Piping connectionW D H ③⑧ ①

3.000 2,310 1,560 2,175 Rc1 1/4 Rc1 1/42,500 2,310 1,560 2,1752,000 1,560 1,560 2,175

Rc11,500 2,310 920 2,165Rc11,000 1,560 920 2,165

500 920 920 2,165

Dimensions

Heat pump unit Remote control

Storage tank unit（3.000ℓ） ⑧ Hot water connection⑨ Relief valve check window

運転中

10％

25％

40％

60％

75％

100％（貯湯量）

運転停止リセット

（14

.3）

（12

0）

R2.5

R2.5

（φ8.5）

（83

.5）

（70）

（6.

5）（9）

（20）

Remote control chord

Inst

alla

tion

clea

ranc

e

Air inlet Air inlet

Air outlet Air outlet

（mm）

13

For details about installation, refer to separate Technical Manual.

700m

m

900m

m

2,50

0mm

3m

900m

m

700mm 500mm

500m

m

500mm700mm

2,700mm

3,300mm

3,00

0mm

Install the units where cold air from the heat pump unit outlet or operation noise do not annoy neighbors and consider sound insulation measures. The following space is needed for maintenance inspections. If the space is less than the following, maintenance may be impossible. Be sure to maintain more space than the following when designing.

Work procedures (abstract)

Installation location

Top view

Front view

Water qualityUse tap water for Eco-cute. If well water is to be used, be sure to contact us for consultation.

Items arranged by customersWhen plumbing, pressure reducing valves, vacuum breakers, mixing valves, and motor valves are needed. Customer is responsible for providing them according to the water heater system. (Table on the right shows our recom-mendation.)

Item Model No. Manufacturer

Water supply line Pressure reducing valve RD-31N

VENN Co., LTD.Hot watersupply line

Vacuum breaker VD-5N

Mixing valve JRG3400,3410Motor valve BM-7S

About these items, please contact to the manufacturer.

The heat pump units are to be installed outdoors.

The distance between the heat pump unit and the storage tank.[In case they are installed at the same level]　Recommendation is 5 m in direct distance (max. 30 m)

[In case one is installed on top of the other]In case the heat pump unit is on top and the storage • tank is on the bottom: real height is 3 m (total plumb-ing length is 5 m or less)

In case the storage tank is on top and the heat pump • unit is on the bottom: real height is 7 m (total plumb-ing length is 10 m or less)

Front

Front

14

R Drain outlet（Open constantly）

PrecautionsWater supply plumbing

Feed water pressure is recommended as 0.2 to 0.3 MPa on the primary side. 1. Use stainless steel or copper pipes for plumbing. 2. Conduct heat insulation work to prevent condensation on the plumbing. 3. If water is expected to freeze, implement antifreeze measures. 4.

Hot-water supply plumbingUse heat resistant plumbing material such as stainless steel and copper. 1. Conduct heat insulation to prevent accidents and heat radiation. 2. When hot water is supplied downwards from the storage tank, install atmosphere open pipe or vacuum 3. breakers to prevent negative pressure generation. When driving a pipe into the storage tank directly, do not to apply force to the neck portion. 4.

Drain plumbingDo not install valves at the drain outlet and the heat pump unit drain port (air heat exchange drain). Be sure 1. to conduct indirect drainage treatment instead. The storage tank drains high temperature water. Use heat resistant plumbing material.2.

Remote control installationOnly one accessory remote control should be installed for one heat pump unit. In case the remote control 1. is installed far from the heat pump unit, extrinsic infl uence such as noise may cause malfunctions. Imple-ment the necessary measures to avoid any infl uence from the conduit work or route confi rmation. (In par-ticular, do not approximate or parallel the master electric cable to the operation cables.) Do not exceed the maximum cable length of 50 m. Use shielded cables for the remote control line and be sure to ground one end of the shielded cables.2.

Installation example

Heat pump unit Storage tank unit

Hot water outlet

Water inlet

Remote control cable（Balanced type shield wire）

Distant-control cable

Drain outlet（Open constantly）

Water inlet

Hot water outlet

Water outlet

Hot water inlet

Water supply

Drainage

Pressure reducing valveFloor drain

Thermistor cable（12 core）

Automatic air vent valve

15

Additional contract Industrial All electrifi cation contractAfter holding the Industrial thermal storage adjustment contract, if your heat source in the kitchen and air-condition-ers are All electrifi cation, you can additionally hold the contract and receive a 7% discount.

Basic contract Industrial thermal storage adjustment contractIf the operation time of a thermal storage type water heater system shifts from daytime (8:00 to 22:00) to nighttime (22:00 to 8:00), this contract results in a 60% discount on the electricity bill. ITOMIC Industrial-use Eco-cute is usu-ally operated under this contract. Calculation: Discount of the thermal storage adjustment contract = Electricity consumption for discount x rate in day-time x discount rate (approx 60 % )

Reference data

Electricity contract and running cost (Japan domestic)

High effi cient Eco-cute results in small energy consumption and low running cost. In addition, because the electricity bill is little aff ected by price hikes in materials, it can be operated and the cost remain stable.

These values are based on our estimation. Calculation conditions: One-year daily usage with All electrifi cation and nighttime thermal storage. Hot-water supply load: Average fed water temperature in Tokyo area = 17℃ , boiled to 90℃ , yearly average temperature in Tokyo area (DB) = 16℃ , COP = 3.3. Boiler effi ciency: 90% , Energy price rate: estimated, annual load: 365 days x (90℃ - 17℃ ) x 3000 L = 79,935,000 kcal.

Running cost comparison

Eco-cute utilize relatively cheap Industrial thermal storage adjustment contract, and hot water equivalent to 4.5 tons at 60℃ * cost 300 yen per day. Moreover, Industrial All electrifi cation contract enables further running cost reduc-tions. (* 3 tons at 90℃ conversion)

Electricity contract

￥140,830￥140,830

￥658,125￥658,125

￥464,740￥464,740

￥848,350￥848,350

Equipment typeItem

Itomic industrial useEco-cute Gas boiler Coal oil boiler Electric water heater

Energy consumption ratio 1 6.0 4.7 3.3

Annual running cost ￥140,830 　￥848,350 　￥658,125 　￥464,740

Annual balance --- +￥707,586 +￥517,334 +￥323,909

Energy price rate @￥5/kWh @￥95/㎥ @￥65/ℓ @￥5/kWh

Consumption amount (annual) 28,166kWh 8,930㎥（N） 10,125ℓ 92,948kWh

High efficiency results in small energy consumption. Electricity is stable in price rate. Industrial thermal storage adjustment contract makes large discount.

* Note: The annual running cost are diff er-ent from above electricity contract because the calculation conditions are diff erent.

Calculation example● Running cost per month without a discount　（6.9kW×10h×30days）×@￥12＝￥24,840

● In case of Industrial thermal storage adjustment contract　Discounted amount＝（6.9kW×10h×30days）×@￥12×60%＝￥14.904　Running cost per month＝24,840－14,904＝￥9,936　Running cost per day＝9,936÷30days＝￥331

● In case of Industrial thermal storage adjustment contract + All electrifi cation contract　Discounted amount＝9,936×7%＝￥695　Running cost per month＝9,936－￥695＝￥9,241　Running cost per day＝9,241÷30days＝￥308 0 5000 10000 15000 20000 25000

￥24,840

￥9,936

￥9,241

These values are based on our estimation.

16

22.522.5

48.748.7

71.271.2 72.172.1

Equipment type

ItemItomic industrial use

Eco-cute Gas boiler Coal oil boiler Heavy oil boiler

Amount of CO2 emissions 22.5 48.7 71.2 72.1

Amount of heat released 88.8MJ/h 45MJ/N㎥ 35.6MJ/ℓ 39.1MJ/ℓ

Equipment effi ciency 100％ 85% 85% 85%

CO2 emission factor※ 0.3kg-CO2/kWh 2.1kg-CO2/N㎥ 2.5kg-CO2/ℓ 2.7kg-CO2/ℓ

CO2 emissions are compared with the water heater equipment using other energy, which operates the same heating performance as ITOMIC Industrial-use Eco-cute. CO2 emission factors are specifi ed values of the Ministry of the Environment in 2007. Other values are based on our estimation. Calculation conditions: Supplied hot water 90℃ , outer temperature 16℃ , 10-hour operation. Heating capacity = 88.8 MJ/h x 10 h = 888 MJ. CO2 emissions = 0.3 kg/kWh x 7.5 kW x 10 h = 22.5 kg. * CO2 emissions when one energy unit (m2, L, kWh) is consumed.

CO2 emission comparison

Electricity does not burn fuel so CO2 emis-sions are small. Energy consumption is small so CO2 emis-sions are small.

Mon Tue Wed Thu Fri Sat Sun

Culclated

hot water volume（ℓ）

Monitored

hot water volume （ℓ）

Learning functionThis is an energy-saving function; operation pattern per weekday has been monitored for the past one month (four weeks) and the required volume of hot water and operation time are calculated, which prevents unneces-sary operation and water temperature decreases due to natural heat radiation. (This function must be set by our service personnel.)

Seasonal modeAs contrasted to normal 90 ℃ operation mode, this mode varies operation temperature according to the outside temperature. Using this mode in summer, when not as much high temperature water is required, reduces unnecessary boiling and warming operations.

Operation mode (Detail)

0

10

20

30

40

50

60

70

80

90

100

-15 -10 -5 0 5 10 15 20 25 30 35 40

Outside temperature（℃）

Hot water temperature（℃） 90℃ mode90 88

8480

7672

6864

60

Seasonal mode

After calculation, the following modes are available. (1) Electricity reduction operation(2) Natural heat radiation reduction operation(3) Combination of above-mentioned (1) and (2)The operation mode is set as you like.

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FAQHere are frequently asked questions from our customers.

Q1 Are any hygiene measures against Legionella required?

A1 Legionella is sterilized over 60℃ . Because this unit stores water at over 60℃ , the bacteria does not de-velop.

Q2 Is water boiled by Eco-cute suitable for drinking?

A2 Be sure to boil water again with kettles before drink.

Q3 How loud operation noise is?

A3 It is 54 dB (at point of 1 m distant, 1.5 m high).

Q4 How about equipment durability?

A4 Legal durable years in Japan are 15 years. However, note that it depends on actual operating conditions and environment.

Q5 How long is the distance between the heat pump unit and the storage tank?

A5 When installed at the same level, the recommendation is 5 m in direct distance (max. 30 m). In case one is installed on the top of the other, it depends on the installation method. In case the heat pump unit is on top and the storage tank is on the bottom: real height is 3 m (total plumb-ing length is 5 m or less)In case the storage tank is on top and the heat pump unit is on the bottom: real height is 7 m (total plumb-ing length is 10 m or less)

Q6 Is it possible to install the heat pump units indoors?

A6 Install them outdoors. Heat exchange failure may occur, which results in lower performance.

For questions other than the above, feel free to contact us.

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Questionnaire Sheet

Nihon ITOMIC Co., Ltd Eco Products Department

FAX+81-3-3621-2130

Contact name

Country

Address

TEL/FAX/E-mail

Construction phase New building Renovation Reconstruction

Address of the building

Scale of the building Total fl oor area　　　　　 ㎡ , [ On the ground stories, basement stories ]

Hot-water supply conditions

Application of hot water

Operating time ：　　　　　　　～　　　　　　　：

Number of people

Volume of hot-water usage

● Kitchen　　　

● Bathtub

● Shower

● Wash basin

In case of renovation,

about current water heater equipment

Electric water heater Boiler Other[ ]

Manufacturer, Model Used time years

Current fuel Gas Oil（ heavy fuel oil / coal oil ）

Other information

This sheet will be used to provide you with the best energy-saving water heater equipment. Please fi ll in the following items and fax the information to us.

FAX to

Eco Products DepartmentItomic building 5-11-3, Narihira Sumida-ku, Tokyo,130-0002, JapanTEL+81-3-3621-2141 / FAX+81-3-3621-2130

http://www.itomic.co.jp/english/

'08.03-1-1-0.5 I

Low-cost and Eco-friendly heat pump water heater.

Nihon ITOMIC Co., Ltd