Reaffirmed 2022

1. SCOPE

1.1 This standard deals with the safety and performance requirements of hermetic sealed type standalone motor-compressors operating on vapor compressor cycle, suitable for low, medium and high temperature applications based on reciprocating (including linear), rotary and scroll pump mechanisms, their protection system, if any, which are intended for use in equipment for house hold, industrial and commercial purposes.

1.2 It applies to motor-compressors tested separately under the most severe conditions that may be expected to occur in normal use, their rated voltage being not more than 260 V for single-phase motor-compressors and not more than 480 V for other motor-compressors. This standard also covers:

a) Multi-speed motor-compressors, that are motorcompressors, the speed of which can be set to different values; and

b) Variable capacity motor-compressors, that are motor-compressors where the capacity of the compressor is controlled at fixed speeds.

NOTE - Examples of equipment which contain motorcompressors are:

a) refrigerators, food freezers and ice makers;

b) air-conditioners, electric heat pumps and dehumidifiers;

c) commercial dispensing appliances and vending machines; and

d) factory-built assemblies for transferring heat in applications for refrigerating, air-conditioning or heating purposes or a combination of such purposes.

1.3 This standard does not cover semi-hermetic compressor.

2. REFERENCES

The standards listed below contain provisions which through reference in this text, constitute provisions of the standards. 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 editions of the standards indicated below:

5111 : 1993/ISO 917 : 1989 Testing of refrigerant compressors (first revision)

1271 : 2012/IEC 60085 : 2007 Electrical insulation — Thermal evaluation and designation (second revision)

4831 : 2018 Recommendation on units and symbols for refrigeration