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1 CO2 Heat pump water heater for commercial use EcoCute 1. Product Outline 2. Case study: Actual operational status and actual cost-saving result 3. Various example 2014 MITSUBISHI HEAVY INDUSTRIES, LTD. All Rights Reserved.

The World s FIRST 2-Stage CO2 Compressor Provides Hot Water up to 90 COP of up to

2 Natural Refrigerant CO2 Air to Water System Ultra Efficient Technologies from MHI Mitsubishi Heavy Industries introduce 30kW Heat Pump Water Heater MHI s NEW Q-Ton The World s FIRST 2-Stage CO2 Compressor Provides Hot Water up to 90 COP of up to 4.3 [430% efficiency!] Operation down to -25 Ambient Utilises NATURAL REFRIGERANT 1

Development concept and Advantage Performance issue to be solved on

temperature, heating capacity and heating efficiency decrease

MHI solution Point The world's first CO2 two-stage compressor (Scroll +

Point The rated heating capacity is 30kW and sustainable at ambient air

3 Development concept and Advantage Performance issue to be solved on conventional air to water heat pump When operating under low outdoor temperature, heating capacity and heating efficiency decrease significantly. MHI solution Point The world's first CO2 two-stage compressor (Scroll + Rotary) is adopted. Point The rated heating capacity is 30kW and sustainable at ambient air temperature as low as Point The COP on rated conditions reaches 4.3,which is the highest level in the industry Point A 90 hot water supply is available even an ambient air temperature as

4 Heating 加熱能力 capacity ( (kw) COP ( - ) Heating performance characteristics curve kW -7 Relative humidity 75% Relative humidity >75% Hot water outlet temp: feed water inlet temp 5 outlet water 65 COP 外気温 ( DB) Outdoor air temp( DB) Conventional EcoCute Conventional EcoCute COP

5 Field Test installation site A certain pharmaceutical company System composition Q-ton 1unit, Unvented cylinder 500l x 4units Purpose of use Kitchen and bathroom 4

6 Field Test: Actual operation point Verification tests results in the cold regions 5

7 Cost-saving result 1 Annual COP in this site 6

Cost-saving result 2 Annual results summary

$rate The summer :\11.65/kWh, The other season: \10.$ 70/kWh Boiler/kerosine : 90/L CO2 emission amount

8 Cost-saving result 2 Annual results summary Running cost -61% Co2 emission amount -29% [Calculation conditions] Price rate Q-ton/electric rate The summer :\11.65/kWh, The other season: \10.70/kWh Boiler/kerosine : 90/L CO2 emission amount Q-ton/electric : 0.546kg-CO2/kWh Boiler/kerosine : 2.490kg-CO2/L 7

エネルギー費用割合 Energy cost (%) (%) エネルギー費用割合 Energy cost (%) (%) エネルギー費用割合 Energy cost (%) (%) Hw outlet temp( ) 出湯温度 ( ) Energy cost was reduced to 43-54% in comparison with the conventional boiler in

9 エネルギー費用割合 Energy cost (%) (%) エネルギー費用割合 Energy cost (%) (%) エネルギー費用割合 Energy cost (%) (%) Hw outlet temp( ) 出湯温度 ( ) Energy cost was reduced to 43-54% in comparison with the conventional boiler in the winter season when operation conditions were the severest for heat pump unit. And there was no trouble. (at the lowest temperature:-20 ) In the intermediate season and summer season when heat pump performance improves, it can be presumable that energy cost may be reduced further. Toyama Iwate I Toyama 富山 (Jan/2011 (H23 年 1 月 ~H23 to Feb/2011) 年 2 月 ) Hokkaido Supplying hot water for kitchen and hand-wash 30kW x 1set + unvented cylinder Installation site: Hokkaido area severely cold area (-20 or lower) In Hokkaido 北海道 (Dec/2010 (H22 年 to 12 Jan/2011) 月 ~H23 年 1 月 ) Existing 従来ボイラ boiler Supplying hot water for kitchen and bath 30kW x 1set + unvented cylinder Installation site: North Iwate area severely cold area in Tohoku 50 Heat キュートン pump unit Outdoor 外気温 air temp ( ) ( ) In Iwate (Jan/2011 to Mar/2011) 岩手 (H23 年 1 月 ~H23 年 3 月 ) 100 Existing 従来ボイラ boiler 43 Heat キュートン pump unit Existing 従来ボイラ boiler 54 Heat キュートン pump unit Preheating feed water to the boiler 30kW x 1set + heat exchanger Installation site: Toyama area Low temp and high humidity area 8

10 Installation Sample1 (Hybrid system with boiler) The hybrid system combined with a boiler takes advantage of good sides of 2 system. Japanese hot spring inn in Matsumoto and Kanazawa System composition Q-ton 1unit, Unvented cylinder 500l x 2units Purpose of use Bathroom, shower, faucet Utilizing existing tank and boiler MITSUBISHI HEAVY INDUSTRIES, LTD. All Rights Reserved. 9

11 Installation Sample2 (School lunch center) This site is the largest all-electric school lunch center in Japan. System composition Q-ton 12units, Large open tank Purpose of use hot water supply for dishwashers 10

12 Installation Sample3 (warm-bathing facility) System composition Q-ton 12units, Large open tank Purpose of use preheating water supply for boiler 11

13 Installation Sample4 (Food factory) System composition Q-ton 4units, Open tank 4,000L, 15,000L Purpose of use Cleaning in the factory, food manufacturing process use 12

14 SUMMARY The rated heating capacity of 30kW is sustainable at ambient air temperature as low as -7 In the field-test, the Q-ton operational cost was really lowered by almost half. Q-ton came to be used in the various fields Thank you for your kind attention 2014 MITSUBISHI HEAVY INDUSTRIES, LTD. All Rights Reserved.

EcoCute. EcoCute 1. Product Outline. CO2 Heat pump water heater for commercial use

EcoCute. EcoCute 1. Product Outline. CO2 Heat pump water heater for commercial use CO2 Heat pump water heater for commercial use EcoCute EcoCute 1. Product Outline 2. Case study: Actual operational status and actual cost-saving result 3. Various example 2014 MITSUBISHI HEAVY INDUSTRIES,