Water Heaters, etc. 9-1 Electric Hot Water S upply S ystem

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9. Water Heaters, etc. 9-1 Electric Hot Water S upply S ystem

1 Items and Evaluation Criteria Heat pump style electric hot water supply system Evaluation Criteria 1 For residential use heat pump style electric hot water supply system, energy consumption efficiency must not fall below the standard energy consumption efficiency of applicable category in Table. 2 For business use heat pump style electric hot water supply system, coefficient of performance is 3.50 or higher. 3 The refrigerant does not use material capable of damaging the ozone layer. 4 Does not use hydro-fluorocarbon so-called CFC alternative. Factors for Consideration 1 The item is designed so that it can be easily dismantled and its materials separated to facilitate either reuse of components or recycling of materials. 2 The item is made of as large amount of recycled plastic as possible if plastic components are used. 3 Packaging and stowage is to be as simple as possible and take into account ease of recycling and reduced environmental impact upon disposal. 4 A system for the collection and reuserecycling of packaging, etc. is considered. Note: 1. Equipments having a heating function will not be considered as Heat pump style electric hot water supply system in the evaluation criteria. 2. The coefficient of performance for business use heat pump style electric hot water supply system is to be calculated using the below formula: Coefficient of performance COP = Rated heating capacity Rated consumed electricity Rated heating capacity: Heat that is supplied to the circulating hot water when the heat pump unit is operated in accordance with the rated heating criteria listed in Attached Table. For systems that are simultaneously heated with a heater, add the amount of heat generated by the heater. unit: kW Rated consumed electricity: The sum of electricity consumed when the heat pump unit is operated in accordance with the rated heating criteria listed in Attached Table. For systems that are simultaneously heated with a heater, add the amount of electricity consumed by the heater. unit: kW 113 Attached Table : Rated Heating Criteria Category Rated heating criteria unit: degrees C External temperature DBWB 1612 Temperature of supplied water 17 Temperature of heated water 65 Temperature of supplied water: Temperature of city water that is supplied to the heat pump method hot water supply system. unit: degrees C Temperature of heated water: Temperature at the output of the heat pump unit. unit: degrees C

3.Recycled plastic denotes part or all of plastic once used as a part of a useful product that

has been discarded, remnants discarded during the manufacturing process, or the recyclereuse of defective articles This excludes, however, plastic that has been recycled in the process of manufacturing the product. 4. Evaluation Criteria 4 does not apply to the products for business use heat pump style electric hot water supply system. 5.As for residential use heat pump style electric hot water supply system, one year transition period will be applied in the fiscal year 2014, the products may considered as a specified procurement goods when they meet the Evaluation Criteria of Heat pump style electric hot water supply system stated in Basic Policy on Promoting Green PurchasingCabinet Decision February 5, 2013. The period of time for which the exception is applicable will be determined in consideration with market movement. Table : Standard of Energy Consumption for Residential Use Heat Pump Style Electric Hot Water S upply S ystem Assumed number of household Tank capacity Specification Warm keep function Tank number Standard of energy consumption efficiency Normal 4 persons Less than 240 L Other than Specification for Cold Region with One tank 2.8 M ulti tank 2.4 without One tank 3.0 M ulti tank 2.6 Specification for Cold Region With One tank 2.3 M ulti tank 2.0 without One tank 2.6 M ulti tank 2.3 Over 240 L Other than Specification for with One tank 2.8 M ulti tank 2.8 114 less than 320 L Cold Region without One tank 3.2 M ulti tank 2.8 Specification for Cold Region with One tank 2.3 M ulti tank 2.0 without One tank 2.7 M ulti tank 2.3 Over 320 L less than 550 L Other than Specification for Cold Region with One tank 3.3 M ulti tank 2.8 without One tank 3.2 M ulti tank 2.8 Specification for Cold Region with One tank 2.7 M ulti tank 2.3 without One tank 2.7 M ulti tank 2.3 Over 550 L Other than Specification for Cold Region with One tank 2.9 M ulti tank 2.5 with One tank 2.9 M ulti tank 2.5 Specification for Cold Region with One tank 2.4 M ulti tank 2.1 without One tank 2.5 M ulti tank 2.2 Few 2 persons 115 9-2 Gas Water Heaters 1 Items and Evaluation Criteria Gas water heaters Evaluation Criteria Energy consumption efficiency shall not fall below the energy consumption efficiency listed in Table for each category. Factors for Consideration 1 The item is designed so that it can be easily dismantled and its materials separated to facilitate either reuse of components or recycling of materials. 2 The item is made of as large amount of recycled plastic as possible if plastic components are used. 3 Packaging and stowage is to be as simple as possible and take into account ease of recycling and reduced environmental impact upon disposal. 4 A system for the collection and reuserecycling of packaging, etc. is considered. Note: 1. Items that meet any of the criteria below will not be considered as Gas water heaters under consideration in the evaluation criteria of this section: a. Storage-style hot water supply system. b. Items that were designed for commercial use. c. Items that use gas excluding city gas categorized under group 13A and liquefied petroleum gas as its fuel source. d. Gas bath furnaces that are designed to be installed at a bath tub for heating bath water, and equipped with a function to prevent imperfect combustion. e. Direct vent type gas bath furnaces which require a duct connection for combustion air supply and exhaust. 2. Recycled plastic denotes part or all of plastic once used as a part of a useful product that has been discarded, remnants discarded during the manufacturing process, or the recyclereuse of defective articles This excludes, however, plastic that has been recycled in the process of manufacturing the product. 116 Table: Standard Energy Consumption Efficiency for Gas Water Heaters Category Standard energy consumption efficiency Type of gas water heater Ventilation type Circulation type Air supply and exhaust type Gas instant water heater Natural ventilation type Non-vented type 83.5 Other than non-vented type 78.0 Forced ventilation type Other than outdoor type 80.0 Outdoor type 82.0 Bath tub gas water heaterwith no hot water supply functions Natural ventilation type Natural circulation type Vented type or direct vent type the height where the air supply and exhaust part penetrates external wall is as vented types 75.5 Direct vent type other than types of the height where the air supply and exhaust part penetrates external wall is as vented types 71.0 Outdoor type 76.4 Forced ventilation type Natural circulation Type 70.8 Forced circulation Type 77.0 Bath tub gas water heater with hot water supply functions Natural ventilation type Natural circulation Type Vented type or direct vent type the height where the air supply and exhaust part penetrates external wall is as vented types 78.0 Direct vent type other than types of the height where the air supply and exhaust part penetrates external wall is as vented types 77.0 Outdoor type 78.9 Forced ventilation type Natural circulation type 76.1 Forced circulation Type Other than outdoor type 78.8 Outdoor type 80.4 Gas heating equipment with no hot 117 water supply functions 83.4 Gas heating equipment with hot water supply functions 83.0 Note: Energy consumption efficiency is calculated according to “3 Energy Consumption Efficiency M easurement M ethods,” in M inistry of Economy, Trade and Industry notification No. 57 M arch 29, 2006, based on the Law Concerning the Rational Use of Energy. 2 Target Setting Guideline Ratio of the number of gas water heaters meeting the criteria to the total number of gas water heaters to be purchased including leaserental agreements in the fiscal year. 118 9-3 Oil Water Heaters 1 Items and Evaluation Criteria Oil water heaters Evaluation Criteria Energy consumption efficiency shall not fall below the energy consumption efficiency listed in Table for each category. Factors for Consideration 1The item is designed so that it can be easily dismantled and its materials separated to facilitate either reuse of components or recycling of materials. 2 The item is made of as large amount of recycled plastic as possible if plastic components are used. 3Packaging and stowage is to be as simple as possible and take into account ease of recycling and reduced environmental impact upon disposal. 4A system for the collection and reuserecycling of packaging, etc. is considered. Note: 1. Items that meet any of the criteria below will not be considered as Oil water heaters under consideration in the evaluation criteria of this section: a. Pot style bath furnace equipped with a burner. b. Items that were designed for commercial use. c. Items equipped with a structure for burning firewood. d. Hot water boilers with gauge pressure of over 0.1M Pa.

2. Recycled plastic denotes part or all of plastic once used as a part of a useful product that