scope:

This standard applies to the outdoor sections of factory-made air-conditioning and heat pump equipment as defined in the following AHRI standards, when rated in accordance with AHRI Standard 270.

AHRI Standard 210/240, Unitary Air-conditioning and Air-source Heat Pump Equipment;

AHRI Standard 340/360, Commercial and Industrial Unitary Air-conditioning and Heat Pump Equipment (cooling capacity ratings of equal to or less than 40.0 kW);

AHRI Standard 1230, Variable Refrigerant Flow (VRF) Multi-split Air-conditioning and Heat Pump Equipment (cooling capacity ratings of equal to or less than 40.0kW);

ANSI/AHRI Standards 1160 (I-P) and 1161 (SI), Heat Pump Pool Heaters.

Purpose.

The Purpose of this standard is to establish for outdoor unitary equipment: definitions, procedures for estimating A-weighted Sound Pressure Levels from the A-weighted Sound Ratings, and recommended application practices.

Intent.

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

Review and Amendment.

This standard if subject to review and amendment as technology advance.