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Energy Efficiency Regulations

Self-Contained, Commercial Refrigerators, Freezers and Refrigerator-Freezers without Doors; Commercial Refrigerators, Freezers and Refrigerator-Freezers with a Remote Condensing Unit; Commercial Ice-Cream Freezers

Bulletin on Developing and Amending Standards

May 2010

ecoACTION

Natural Resources Canada's (NRCan's) Office of Energy Efficiency (OEE) is proposing to amend Canada's Energy Efficiency Regulations (the Regulations) in order to expand the scope of minimum energy performance standards (MEPS) for commercial refrigeration as follow:

  • Self-contained equipment without doors: from reporting only to MEPS
  • Equipment with remote condensing unit: new MEPS
  • Ice Cream freezers:
    • Self-contained with closed doors: more stringent MEPS
    • Self-contained without doors: from reporting only to MEPS
    • With remote condensing unit: new MEPS

This document is intended to inform and seek input from stakeholders on the proposed minimum energy performance standards so that they can submit comments before pre-publication in the Canada Gazette, Part I.

This bulletin puts the proposed amendment in plain language. The proposed legal text of the amendment will be pre-published in the Canada Gazette, Part I.

Background

The Energy Efficiency Regulations, which came into effect in February 1995, are administered by NRCan and reference energy efficiency standards that must be used to test the products to ensure that they comply with the minimum requirements of the Regulations.

Self-contained commercial refrigeration was first regulated in 2007. For equipment without doors, no maximum daily energy consumption was specified; however manufacturers had to report the daily energy consumption.

NRCan's June 2009 bulletin proposed to strengthen the minimum energy performance standard for self-contained, commercial refrigerators, freezers and refrigerator-freezers to harmonize with the performance levels, test standards and effective dates in the USA. These performance criteria apply to products manufactured, sold or leased after January 1, 2010. These changes are still proposed as part of Amendment 11. Self-contained commercial refrigerators, freezers and refrigerator-freezers without doors still did not have to meet an efficiency level. The purpose of this bulletin is to explore standards similar to the January 9, 2009 Final Rule issued by the DOE for this product category and others. These changes would be proposed in Amendment 12.

After analysis of the U.S. Final Rule, NRCan is proposing to amend the Regulations to ensure that Canadian regulations are harmonized requiring dealers to comply with minimum energy performance standards for these products.

Product Description

For the purposes of the Regulation:

Self-contained, commercial refrigerators, freezers and refrigerator-freezers without doors (also referred to as open) are self-contained refrigeration equipment where product is accessible for removal without opening or moving doors or panels or drawers.

Commercial refrigerators, freezers and refrigerator-freezers with a remote condensing unit are commercial refrigeration equipment equipped with a factory-made assembly of refrigerating components which consists of 1 or more refrigerant compressors, refrigerant condensers, condenser fans and motors, and factory supplied accessories, that is remotely located from the refrigerated equipment.

Ice-cream freezer is defined in as a commercial freezer that is designed to operate at or below −20.6 °C and that the manufacturer designs, markets, or intends for the storing, displaying, or dispensing of ice cream or similar foods.

Wedge case means a commercial refrigerator, freezer, or refrigerator-freezer that is in the shape of a wedge and is used to form the transition between rectangular shaped commercial refrigeration equipment.

Energy Performance Test Procedure

AHRI Standard 1200-2008, entitled Performance Rating of Commercial Refrigerated Display Merchandisers and Storage Cabinets will be the reference test procedure for this product, except that the test will be conducted:

  1. with all standard factory installed accessories, such as lighting, perimeter heat and pan heater in the on position if manually controlled;
  2. with all accessories, such as electric condensate pans, that are included as standard with the equipment are not factory-installed, installed and in the on position; and
  3. with a disabled power management device unless the device cannot change to a new integrated average product temperature after the test has been concluded.
  4. at one or more of the following integrated average temperatures
    1. for a unit intended for ice cream temperature applications, -26.1°C ± 1.1°C,
    2. for a unit intended for low temperature applications, -17.8°C ± 1.1°C,
    3. for a unit intended for medium temperature applications, 3.3°C ± 1.1°C,
    4. for a unit that cannot maintain any of the temperatures set out in subparagraphs (i) to (iii), the lowest temperature setting and reported at this temperature;

The refrigerated volume shall be calculated in accordance with Clause 4 of CSA C300-08.

For Wedge cases, the total display area (TDA) is the product of the vertical height of the air-curtain (or glass in a transparent door) and the largest overall width of the case, when viewed from the front.

The standards can be ordered from:

Air Conditioning, Heating & Refrigeration Institute
4100 N. Fairfax Dr., Suite 200
Arlington, Virginia 22203 USA
Tel.: 703-524-8800
http://www.ahrinet.org

And:

Canadian Standards Association
5060 Spectrum Way, Suite 100
Mississauga ON L4W 5N6
Tel.: 1 800 463-6727
In Toronto, call 416-747-4000
http://csa.ca

Energy Performance Standards

NRCan proposes that the minimum daily energy consumption (in kWh/day) shall not exceed the levels specified below for equipment other than commercial integrated refrigeration equipment or wedge cases:

V is the refrigerator volume measured in litres.

TDA is the total display area of the case in m², as measured in the AHRI Standard 1200-2008.

Equipment category Condensing unit
configuration
Equipment
type
Rating
temp.
( °C)
Operating
temp.
( °C)
Maximum daily energy consumption
(kWh/day)
Remote
Condensing
Commercial
Refrigerators
and Commercial
Freezers
Remote (RC) Vertical Open
(VOP)
3.3   
-17.8
≥ 0
< 0
  8.826 × TDA + 4.07
24.434 × TDA + 6.85
Semi vertical Open
(SVO)
3.3
-17.8
≥ 0
< 0
  8.934 × TDA + 3.18
24.434 × TDA + 6.85
Horizontal Open
(HZO)
3.3
-17.8
≥ 0
< 0
  3.767 × TDA + 2.88
6.135 × TDA + 6.88
Vertical Closed
Transparent (VCT)
3.3
-17.8
≥ 0
< 0
  2.368 × TDA + 1.95
6.028 × TDA + 2.61
Horizontal Closed Transparent (HCT) 3.3
-17.8
≥ 0
< 0
  1.722 × TDA + 0.13
3.66 × TDA + 0.26
Vertical Closed Solid
(VCS)
3.3
-17.8
≥ 0
< 0
  0.003885 × V + 0.26
0.008122 × V + 0.54
Horizontal Closed Solid (HCS) 3.3
-17.8
≥ 0
< 0
  0.003885 × V + 0.26
0.008125 × V + 0.54
Service Over Counter
(SOC)
3.3
-17.8
≥ 0
< 0
  5.49 × TDA + 0.11
11.625 × TDA + 0.22
Self-Contained
Commercial
Refrigerators

and Commercial
Freezers

without Doors
Self-Contained
(SC)
Vertical Open (VOP) 3.3
-17.8
≥ 0
< 0
  18.729 × TDA + 4.71
47.038 × TDA + 11.82
Semi vertical Open
(SVO)
3.3
-17.8
≥ 0
< 0
  18.622 × TDA + 4.59
46.715 × TDA + 11.51
Horizontal Open
(HZO)
3.3
-17.8
≥ 0
< 0
  8.288 × TDA + 5.55
20.667 × TDA + 7.08
Commercial
Ice-Cream
Freezers
Remote (RC) Vertical Open (VOP) −26.1−26.1 −20.6−20.6   31.108 × TDA + 8.7
Semi vertical Open
(SVO)
  31.108 × TDA + 8.7
Horizontal Open
(HZO)
  7.75 × TDA + 8.74
Vertical Closed
Transparent (VCT)
  7.104 × TDA + 3.05
Horizontal Closed Transparent (HCT)   4.306 × TDA + 0.31
Vertical Closed Solid
(VCS)
  0.009535 × V + 0.63
Horizontal Closed Solid (HCS)   0.009535 × V + 0.63
Service Over Counter
(SOC)
  13.562 × TDA + 0.26
Self-Contained
(SC)
Vertical Open (VOP)   59.74 × TDA + 15.02
Semi vertical Open
(SVO)
  59.417 × TDA + 14.63
Horizontal Open
(HZO)
  26.264 × TDA + 9
Vertical Closed
Transparent (VCT)
  7.212 × TDA + 3.29
Horizontal Closed Transparent (HCT)   6.028 × TDA + 0.43
Vertical Closed Solid
(VCS)
  0.01342 × V + 0.88
Horizontal Closed Solid (HCS)   0.01342 × V + 0.88
Service Over Counter
(SOC)
  18.944 × TDA + 0.36

Equipment type is considered as broad groups of covered equipment that have similar geometric characteristics. The following types are defined:

  • Horizontal Open (HZO) means equipment without doors and an air-curtain angle greater than or equal to 80° from the vertical.
  • Semi vertical Open (SVO) means equipment without doors and an air-curtain angle greater than or equal to 10° and less than 80° from the vertical.
  • Vertical Open (VOP) means equipment without doors and an air-curtain angle greater than or equal to 0° and less than 10° from the vertical.
  • Vertical Closed (VC) means equipment with hinged or sliding doors and a door angle less than 45°.
  • Horizontal Closed (HC) means equipment with hinged or sliding doors and a door angle greater than or equal to 45°.

    The closed doors may be Solid (S) or Transparent (T).

  • Service Over Counter (SOC) means equipment with sliding or hinged doors intended for use by sales personnel and fixed or hinged glass for displaying merchandise.

Commercial integrated refrigeration equipment means commercial refrigeration equipment that has two or more compartments that are in 1 or more different equipment types, contained in one cabinet, and sold as a single unit.

For commercial integrated refrigeration equipment, the maximum daily energy consumption (MDEC) for each model shall be the sum of the MDEC values for all of its compartments

Effective Date

NRCan is proposing that the amendment to the energy performance standards for Self-Contained, Commercial Refrigerators, Freezers and Refrigerator-Freezers without Doors; Commercial Refrigerators, Freezers and Refrigerator-Freezers with a Remote Condensing Unit and Commercial Ice-Cream Freezers come into effect on January 1, 2012. This means that equipment must meet the minimum efficiency levels if the manufacturing process is completed on or after that date.

Labelling Requirements

NRCan is not proposing mandatory EnerGuide labelling requirements in the Regulation for self-contained, commercial refrigerators at this time.

Verification Requirements

Equipment must carry a verification mark indicating that the energy performance has been verified. The certification body must be accredited by the Standards Council of Canada (http://oee.nrcan.gc.ca/regulations/html/EERGuide_Part1.cfm).

Energy Efficiency Reports

An energy efficiency report must be submitted, by the dealer, to NRCan before the product is imported into Canada or traded inter-provincially.

The following information shall be recorded:

  • Type of product (refrigerator, freezer, or refrigerator-freezer)
  • Brand name
  • Manufacturer
  • Model number refrigeration unit
  • Model number matching accessories (e.g. condensate pan) if applicable
  • Name of the certification body or province that carried out the verification and authorized the verification mark that will appear on the product
  • Equipment cabinet characteristics:
    • Cabinet style, if applicable (reach-in, pass-through, roll-through, or roll-in)
    • Equipment type, if applicable (HZO, SVO, VOP, VC, HC, SOC)
    • Whether the product has a non refrigerated or refrigerated worktop surface
    • Whether the product is designed for installation under a counter (yes, no)
    • Whether the product is used for the cooling and storage of wine or flowers (yes, no)
    • Is the product designed to store ice cream or similar foods (yes, no)
    • Number of and type of each door(s) or drawer(s) (type: opaque, transparent, or no door)
    • Whether the product is designed for pull-down temperature applications
  • Condensing unit configuration (remote or self-contained)
  • Total front area
  • Total front glass area
  • Integrated average temperature (°C) if only tested at the lowest application product temperature
  • Volume (in litres) of the refrigerator compartment, if there is one
  • Volume (in litres) of the freezer compartment, if there is one
  • Total display area (TDA) (in m²)
  • Length (m)
  • Daily energy consumption in kWh

For Remote condensing unit:

  • Refrigeration load capacity (kW)
  • Evaporator dew point temperature (°C)
  • Daily energy consumption for components: compressor energy consumption (CEC), fan energy consumption (FEC), lighting energy consumption (LEC), anti-condensate energy consumption (AEC), defrost energy consumption (DEC), and condensate evaporator pan energy consumption (PEC) and others.

Importing Reports

A dealer who imports self-contained, commercial refrigerators into Canada must include the following information on the customs release document:

  • Type of product;
  • Model number;
  • Brand name;
  • Name of the dealer importing the product;
  • Purpose for which the product is being imported (i.e. for sale or lease in Canada without modification; for sale or lease in Canada after modification to comply with energy efficiency standards; or for use as a component in a product being exported from Canada).

Harmonization

NRCan attempts, as much as possible, to harmonize with other regulatory agencies. The proposed amendment to the Regulations is harmonized with the performance levels, test standards and effective dates aligned with the Final Rule published by the US DOE on January 9, 2009.

Comments Invited

The information in the bulletin is being issued in advance of prepublication in the Canada Gazette to allow time for concerned parties to comment on the proposal. Comments are invited. All correspondence should be forwarded to:

Mvuala Suami
Standards Engineer
Office of Energy Efficiency
Natural Resources Canada
580 Booth St., 18th floor
Ottawa ON K1A 0E4
Tel.: 613-992-8438
Fax: 613-944-6365
E-mail