scope:

This standard applies to Unit Ventilators, defined in Section 3.6.

Exclusions.

This standard does not apply to equipment as defined in the following standards:

This standard does not apply to room air-conditioners, which are covered in AHAM Standard RAC-1 and/or ANSI Standard Z234.1 (withdrawn).

This standard does not apply to central-station air-handling units, which are covered in AHRI Standard 431 (SI).

This standard does not apply to variable refrigerant flow multi-split air conditioners and multi-split heat pumps, which are covered in AHRI Standard 1230 (I-P).

Purpose.

The purpose of this standard is to establish, for Unit Ventilators: definitions; classifications; test requirements; rating requirements; minimum data requirements for Published Ratings; operating requirements; marking and nameplate data; and conformance conditions.

Intent.

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

Review and Amendment.

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