scope:

This standard

a. defines performance scoring methods for cooling and heating system delivered capacity and cooling system efficiency;

b. establishes uniform methods of measurements and testing procedures for airflow, temperature, enthalpy, and power;

c. specifies test instruments, specifications, and calibration requirements for performing such measurements and tests;

d. specifies data required and calculations to be used; and

e. applies to single-zone unitary split and packaged direct expansion (DX) cooling, air-source heat pump, and combustion furnace HVAC systems of any capacity and with forced-air distribution systems.

PURPOSE

The purpose of this standard is to prescribe a field evaluation and test method to measure and score the performance, in terms of delivered cooling or heating capacity or cooling efficiency, of an installed unitary HVAC system.