Revised Standard from Last Update.

1. SCOPE

1.1 This standard cover requirement of condensing units built with electric motor driven by fixed speed and variable speed positive displacement compressors for commercial and industrial applications. The condensing units could be air cooled or water cooled, having singlestage and two stage compressor of open type, hermetic and semi-hermetic construction.

1.2 The standard is applicable to condensing units operating on the vapor compression cycle using refrigerants like HFC/HCFC, natural or A2L/A3 refrigerants. The requirements of high-pressure refrigerants like R744 and ammonia are not covered in this standard.

1.3 The requirements of following applications are not part of this standard:

a) Household refrigerators and household freezers;

b) Comfort and automotive air-conditioners;

c) Dehumidifiers;

d) Evaporative cooled condensers;

e) Condensing units without the compressor; and

f) Units supplied with evaporator.