Revised Standard from Last Update.

1. SCOPE

1.1 This standard (Part 1) specifies safety and performance requirements of single-phase nonducted unitary with single-stage, two-stage, multistage, fixed and variable speed air conditioners and heat pumps for household and similar application of rated capacity up to and including 10 500 W their rated voltage not more than 250 V a.c., 50 Hz for single-phase employing air cooled condensers and test methods for determination of various ratings. This standard is limited to systems utilizing a single refrigeration circuit, having one evaporator and one condenser.

1.2 This standard is not applicable to the following:

a) Water-source heat pumps or water-cooled air conditioners;

b) Mobile (windowless) units having a condenser exhaust duct;

c) Individual assemblies not constituting a complete refrigeration system;

d) Equipment using the absorption refrigeration cycle; and

e) Portable air-conditioners.

2. REFERENCES

The standards listed in Annex A contain provisions, which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of these standards.