IEC TR 63061:2017 PDF

Overview

IEC TR 63061:2017 - Adjusted volume calculation for refrigerating appliances provides a uniform method to calculate adjusted volume, a parameter commonly used in energy-efficiency assessments of household refrigerators, freezers and refrigerator‑freezers. The Technical Report standardizes how compartment volumes are weighted according to their operating (target) temperatures so energy comparisons and labeling are more meaningful across different appliance designs and markets.

Key topics and technical requirements

• Scope: Establishes a consistent calculation method for adjusted volume used in energy efficiency metrics.
• Definitions: Clarifies terms such as compartment, sub‑compartment, compartment type, target temperature, volume adjustment factor (Kc) and adjusted volume (Vadj).
• Volume adjustment factor (Kc): A coefficient applied to each compartment’s rated volume to reflect its relative thermal load versus a reference fresh‑food compartment (Kc = 1.0 for nominal 4 °C fresh‑food compartments). Colder compartments have Kc > 1.0; warmer ones Kc