CSA C840-12 (2017): Energy Performance and Capacity Standard for Household Refrigeration Appliances

Scope

CSA C840-12 (2017), entitled “Energy performance and capacity for household refrigerators, refrigerator-freezers, and freezers,” is a Canadian national standard developed by the Canadian Standards Association. It specifies the methods and requirements for determining the energy consumption and total storage volume (capacity) of electrically operated household refrigeration appliances typically used in residential settings. The standard covers a wide array of configurations including freestanding, built-in, and undercounter models such as refrigerators without frozen storage, refrigerator-freezers with separate compartments, and freezers (both upright and chest types). The standard is essential for ensuring consistent measurement of appliance performance, enabling manufacturers to obtain energy consumption data used for Canada’s EnerGuide labeling program and for compliance with federal energy efficiency regulations.

Technical Requirements

CSA C840-12 (2017) sets forth detailed test conditions, instrumentation requirements, and calculation procedures. The standard requires testing in a controlled environment with specific ambient temperature (typically 32±0.5°C for most tests), humidity control, and air velocity limits. Compartment temperatures must be maintained at defined set-points depending on the compartment type (fresh food, freezer, or cellar). The following table summarizes key test conditions for different compartment classes.

The standard employs the AHAM HRF-1-2008 test method for energy consumption measurement. A test cycle typically runs for 24 hours under stabilized conditions. Energy consumption (kWh/24h) and total adjusted volume (in liters) are calculated using formulas that account for compartment type and temperature. The adjusted volume computation includes a weighting factor for freezer compartments (often 1.73 for two-door models) to reflect the greater energy penalty of maintaining lower temperatures. Additionally, the standard defines requirements for anti-sweat heater operation, ice maker energy use, and door opening frequency. Special provisions apply for appliances with variable features such as temperature-controlled drawers or automatic defrost.

Implementation Highlights

Implementing CSA C840-12 (2017) requires investment in a certified test facility that can maintain precise environmental conditions. Energy consumption results obtained per this standard are used to populate the EnerGuide label, mandatory for all new refrigeration appliances sold in Canada. The standard also provides a basis for verifying compliance with minimum energy performance standards (MEPS) under Canada’s Energy Efficiency Regulations. Manufacturers must submit test data from an accredited laboratory for each basic model. One key implementation challenge is addressing the variation in performance due to ambient temperature differences, especially for special uses like garage or outdoor installations. The standard requires a supplemental test at 32°C for standard ratings, but additional tests at lower temperatures may be performed for multi-temperature class ratings.

The standard was reaffirmed in 2017, meaning its technical content remained unchanged from the 2012 edition but received confirmation of ongoing relevance. It harmonizes with U.S. Department of Energy (DOE) test procedures, facilitating cross-border compliance for multinational manufacturers. However, Canadian regulations may include additional requirements such as standby power consumption and verification testing.

Compliance Notes

For Canadian manufacturers and importers, compliance with CSA C840-12 (2017) is not merely recommended but legally required under the Energy Efficiency Act. Products must be tested in accordance with the standard and registered with Natural Resources Canada (NRCan). Test reports must document the model designation, compartment volumes, energy consumption at the standard rating condition, and any special features. NRCan conducts periodic verification testing to ensure compliance; discrepancies greater than 10% can result in penalties and removal of the product from the Canadian market. The standard also serves as the reference for automatic defrost energy penalty factors and for measuring the energy impact of through-the-door ice and water dispensers.

Importers should note that this standard may be referenced in provincial regulations as well. While the 2017 reaffirmation did not introduce technical changes, manufacturers should always check the latest version of any referenced documents (e.g., AHAM standards) to ensure ongoing compliance. The standard includes normative references to IEEE and ASTM standards for instrumentation.

This article is current as of 2026. Standards are subject to periodic review; consult CSA Group for the most recent edition.