Description

This Standard specifies the standard conditions for capacity and efficiency ratings of ducted, air-cooled air-conditioners and ducted air-to-air heat pumps.

This Standard is applicable to the test methods for determining the capacity and efficiency ratings. Residential, commercial, and industrial single-package and split-system air-conditioners and heat pumps are included. The equipment (taken to mean ducted air-conditioners and/or ducted heat pumps) shall be factory-made and electrically driven, and shall use mechanical compression. Adopted with national modifications from ISO 13253:2011.

Scope

This Standard is not applicable to the rating and testing of the following:

• a) water-source heat pumps or water-cooled air-conditioners;
• b) multi-split-system air-conditioners and air-to-air heat pumps (see ISO 15042 for testing of such equipment);
• c) mobile (windowless) units having a condenser exhaust duct;
• d) individual assemblies not constituting a complete refrigeration system;
• e) equipment using the absorption refrigeration cycle;
• f) non-ducted equipment (see ISO 5151 for testing of such equipment).

This Standard does not cover the determination of seasonal efficiencies that can be required in some countries because they provide a better indication of efficiency under actual operating conditions.