scope:

This standard applies to factory-made vapor compression refrigeration Water-chilling and Water-heating Packages including one or more compressors. These Water-chilling and Water-heating Packages include:

Water-cooled, Air-cooled, or Evaporatively-cooled Condensers

Water-cooled heat recovery Condensers

Air-to-water heat pumps

Water-to-water heat pumps with a Capacity greater or equal to 40 kW.

Exclusions.

Water-to-water heat pumps with a Capacity less than 40 kW are covered by the latest edition of ASHRAE/ANSI/AHRI/ISO Standard 13256-2.

Air-to-water units designed exclusively to heat potable water as covered by the latest edition of ANSI/AHRI Standard 1300.

Water-chilling Packages are excluded when the condenser is actively adiabatically-cooled. An adiabatically-cooled condenser is an air-cooled condenser which uses evaporative cooling to pre-cool air before that air reaches the dry heat transfer surface.

Purpose.

The purpose of this standard is to establish for Water-chilling and Heat Pump Water-heating Packages using the vapor compression cycle: definitions; test requirements; rating requirements; minimum data requirements for Published Ratings; marking and nameplate data; conversions and calculations; nomenclature; and conformance conditions.

Intent.

This standard is intended for the guidance of the industry, including manufacturers, engineers, installers, efficiency regulators, contractors and users.

Review and Amendment.

This standard is subject to review and amendment as technology advances.