The notified draft Mexican Official Standard applies to ducted central, package and split-type air-conditioners, powered by electricity, with nominal cooling capacities of 5,275W to 19,050W, which operate by mechanical compression and include an air-cooling evaporator coil, an air-cooled condensing coil and a single-speed (fixed capacity) compressor, an inverter (variable refrigerant flow or frequency) compressor or a multi-stage (staged capacity) compressor, with or without reverse cycle.

Proyecto de Norma Oficial Mexicana PROY-NOM-011-ENER-2024, Eficiencia energética en acondicionadores de aire tipo central, paquete o dividido. Límites, métodos de prueba y etiquetado (Draft Mexican Official Standard PROY-NOM-011-ENER-2024: Energy efficiency of central, package and split-type air-conditioners. Limits, test methods and labelling.(62 pages, in Spanish)

·        The notified draft Mexican Official Standard establishes the minimum seasonal energy efficiency ratio (SEER) for central air-conditioners with variable refrigerant flow. It also specifies the testing methods which must be used to verify compliance, and defines the public information labelling requirements.

·        It applies to ducted central, package and split-type air-conditioners, powered by electricity, with nominal cooling capacities of 5,275W to 19,050W, which operate by mechanical compression and include an air-cooling evaporator coil, an air-cooled condensing coil and a single-speed (fixed capacity) compressor, an inverter (variable refrigerant flow or frequency) compressor or a multi-stage (staged capacity) compressor, with or without reverse cycle, which are manufactured, imported or marketed in Mexico.

·        The following are excluded from the scope of this draft Mexican Official Standard:

o   Split-type, free air discharge, non-ducted air-conditioners (known as mini-split and multi-split), which operate with a single-speed (fixed capacity) compressor or a variable frequency (inverter) compressor.

o   Precision equipment. Equipment covered by other Mexican Official Standards on energy efficiency.