11

Electric Freezers

 

Target Scope


Electric freezers, except the following:

1) ones using thermoelectric elements,

2) ones for home-use and of absorption type, or

3) ones other than those for home-use as described below:

  a. ones whose rated internal volume is over 2,000 L,

  b. ones other than those covered by JIS B 8630 (2009),

  c. ones that do not use 1,1,1,2,2-pentafluoroethane (HFC-125), 1,1,1-trifluoroethane (HFC-143a), or 1,1,1,2-tetrafluorethane (HFC-134a) as refrigerant,

  d. ones capable of maintaining a rated storage temperature of –30 degrees or less,

  e. ones for use while disconnected from a power source, comprising casters,

  f. ones of horizontal type with an external height dimension of 650 mm or less (in a case of being integrated with a washstand, the height corresponding to that of the washstand shall be excluded),

  g. one of vertical type with an external height dimension of 2,050 mm or more,

  h. ones having a water-cooled condenser,

  i. ones having a structure comprising doors on both sides of the housing,

  j. ones intended to store foods exclusively for inspection,

  k. drawer freezers,

  l. ones manufactured for an orderer in accordance with housing dimensions, compressor freezing capacity or insulation performance specifications defined based on the orderer’s instructions, annual shipment volume of which is less than 50 units.

 

Energy Consumption Efficiency

[Home-use freezers]

●Categories & Target Standard Values (1)
Energy consumption efficiency shall be annual energy consumption (kWh/year) measured by a method stipulated in JIS C 9801 (2006).

●Categories & Target Standard Values (2)
Energy consumption efficiency shall be annual energy consumption (kWh/year) measured by a method stipulated in JIS C 9801-3 (2015).

[Business-use freezers ]

●Energy consumption efficiency shall be annual energy consumption (kWh/year) measured by a method stipulated in JIS B 8630 (2009).

 

Categories & Target Standard Values


In the target fiscal year and each subsequent fiscal year, for each category, the weighted average value obtained by weighting energy consumption efficiency with shipment volume shall not be above the target standard value which is a weighted average value obtained by weighting standard energy consumption efficiency*1 with shipment volume.

*1: Values obtained from the standard energy consumption efficiency calculation formulas and rounded to the nearest integers.

[Home-use freezers]

(1) Freezers whose target fiscal year is FY2010 and each subsequent fiscal year (until FY2020)

Category Standard energy consumption efficiency calculation formula
Category name Cooling type Rated internal volume
A Cold air-natural convection type E1 = 0.844V1 + 155
B Cold air-forced circulation type Up to 300 liters E1 = 0.774V1 + 220
C Over 300 liters E1 = 0.302V1 + 343
Remarks: E1 and V1 express the following numerical values.
E1: Standard energy consumption efficiency (unit: kWh/year)
V1: Adjusted internal volume
It shall be a value obtained first by multiplying the rated internal volume of a freezing compartment by either 2.20 for three-star type, 1.87 for two-star type, or 1.54 for one-star type, and then rounded to the nearest integer. (unit: liter)

(2) Freezers whose target fiscal year is FY2021 and each subsequent fiscal year

Category Standard energy consumption efficiency calculation formula
Category name Storage compartment Cooling type
a Freezer Cold air-natural convection type E3 = 0.589V3 + 74
b Cold air-forced circulation type E3 = 1.328V3 + 80
Remarks: E3 and V3 express the following numerical values.
E3: Standard energy consumption efficiency (unit: kWh/year)
V3: Adjusted internal volume (unit: liter)
It is a total sum of the values obtained by multiplying the rated internal volume of each storage compartment by the adjusted internal volume coefficient respectively, which shall be obtained from the following formula and rounded to the nearest integer.
Kci: Adjusted internal volume coefficient, which is a value given in the right column of the table below for each type of storage compartment given in the left column.
Vi: Rated internal volume, which is a value for each type of storage compartment given in the left column of the table below. (unit: liter)
n: Number of storage compartments in a freezer
Type of storage compartment Adjusted internal volume coefficient Kci
One-star 1.48
Two-star 1.76
Three-star or four-star 2.05

[Business-use freezers]

(3) Freezers whose target fiscal year is FY2016 and each subsequent fiscal year

Category Standard energy consumption efficiency calculation formula
Category name Shape
3A Vertical type E2 = 1.96V2 + 186nF + 295dF + 788
3B Horizontal type E2 = 4.12V2 + 157nF + 157dF + 349
4A Chest freezer E2 = 1.16V2 + 211
4B Freezer-stocker E2 = 1.39V2 + 359
Remarks:
  1. “Vertical type” refers to a front-opening type with a height (unit: mm) based on the external dimensions stipulated in JIS B 8630 (2009) (hereinafter referred to as “external height dimension”) of over 1,000 mm. The same applies hereinafter.
  2. “Horizontal type” refers to a front-opening type with an external height dimension of 1,000 mm or less. The same applies hereinafter.
  3. “Chest freezer” refers to a top-opening type with a door to be pulled up.
  4. “Freezer-stocker” refers to a top-opening type with a door which slides leftward and rightward.
  5. E2: Standard energy consumption efficiency (unit: kWh/year)
  6. V2: Adjusted internal volume (unit: liter)
      It shall be a vaue obtained from the formula given for each category in the right column of the following table and rounded to the nearest integer.
    d: Depth (unit: mm) based on the external dimensions stipulated in JIS B 8630 (2009) (hereinafter referred to as “external depth dimension”)
    VF: Rated internal volume (unit: liter)
    Category name Adjusted internal volume
    3A V2=800/d×VF
    3B V2=600/d×VF
    4A V2=VF
    4B V2=VF
    However, if the adjusted internal volume obtained from the above formula is 500 or less in the case of those falling into the category name “3A”, 75 or less in the case of those falling into the category name “3B”, 250 or less in the case of those falling into the category name “4A”, or 50 or less in the case of those falling into the category name “4B”, then the numeric values of 500, 75, 250 and 50 shall be used, respectively.
  7. nF: Number of places where center pillars are not installed for double doors
  8. It shall be “dF = 1” for those having more doors, i.e. having more doors than the standard number of doors given in the right column of the following table (the same applies hereinafter), and “dF = 0” for others.
    Type Standard number of doors
    Shape External width dimension
    Vertical type 825 mm or less 2
    Over 825 mm and no more than 1,650 mm 4
    Over 1,650 mm 6
    Horizontal type 1,050 mm or less 1
    Over 1,050 mm and no more than 1,650 mm 2
    Over 1,650 mm 3
    * “External width dimension” refers to the width (unit: mm) based on the external dimension stipulated in JIS B 8630 (2009).

 

Target Fiscal Year

[Home-use freezers]

●FY2010 and each subsequent fiscal year (until FY2020)

●FY2021 and each subsequent fiscal year

[Business-use freezers]

●FY2016 and each subsequent fiscal year

 

Energy Efficiency Improvement


●For home-use freezers whose target fiscal year was FY2010, energy consumption efficiency was improved by about 24.9% compared with the FY2005 level.

●For home-use freezers whose target fiscal year is FY2021, energy consumption efficiency is expected to be improved by about 12.7% compared with the FY2014 level.

●For business-use freezers whose target fiscal year was FY2016, energy consumption efficiency was improved by about 50.4% compared with the FY2007 level.

 

Display Items

[Home-use freezers]

●Product name and type

●Rated internal volume

●Energy consumption efficiency

●External dimensions

●Name of manufacturer, etc.

[Business-use freezers]

●Product name and type

●Category name

●Rated internal volume

●External depth dimension

●Number of places where center pillars are not installed for double doors

●Indication that a freezer is having more doors than the standard number of doors (if applicable)

●Energy consumption efficiency

●Name of manufacturer, etc.

 

Display Location


Display items shall be presented at location where they can be readily noticed on product bodies.

 

Requirement for Recommendations and Orders


Manufacturers or importers whose annual manufacturing volume or importing volume (limited to shipment to the domestic market) is 300 units or more (100 units or more for business-use freezers) may be subject to recommendations and orders.