1 Scope
This standard specifies terms, definitions, classification, basic parameters, technical requirements, test methods, inspection rules, marking and packaging and storage of screw refrigerant compressor and screw refrigerant compressor unit.
This standard is applicable to screw refrigerant compressor (hereinafter referred to as "compressor") and screw refrigerant compressor unit (hereinafter referred to as "unit") with R717, R22, R134a, R404A, R407C, R410A and R507A as refrigerant.
Compressor and compressor unit adopting other refrigerants (e.g. R290 and R1270) may also refer to the provisions of this standard.
This standard is not applicable to integral two stage screw refrigerant compressor and its screw refrigerant compressor unit.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding amending errors in the text), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of the normative document is applicable. For undated references, the latest edition of the normative document applies.
GB 150 Steel Pressure Vessels
GB 151 Tubular Heat Exchangers
GB/T 191 Packaging-Pictorial Marking for Handling of Goods (GB/T 191-2000, eqv ISO 780:1997)
GB 536 Liquefied Anhydrous Ammonia
GB 755 Rotating Electrical Machines - Rating and Performance (GB 755-2000, idt IEC 60034-1:1996)
GB/T 1032 Test Procedure for Three-phase Induction Motors
GB/T 3853 Displacement Compressor - Acceptance Tests (GB/T 3853-1998, eqv ISO 1217:1996)
GB/T 5773 The Method of Performance Test for Positive Displacement Refrigerant Compressors (GB/T 5773-2004, ISO 917:1989 MOD)
GB/T 6388 Transport Package Shipping Mark
GB/T 7373 Monochloro Difluoro Methane for Industrial Uses
GB/T 7778 Number Designation and Safety Classification of Refrigerants
GB 9237 Mechanical Refrigerating Systems Used for Cooling and Heating - Safety Requirements (GB 9237-2001, eqv ISO 5149:1993)
GB/T 12241 Safety Valves - General Requirements (GB/T 12241-2005, ISO 4126-1:1999, EQV)
GB/T 13306 Plates
GB/T 13384 General Specifications for Packing of Mechanical and Electrical Product
GB/T 16630 Lubricants for Refrigeration Compressors
JB/T 4330-1999 Determination of Noise Emitted by Refrigerating and Air Conditioning Equipment
JB/T 4750 Pressure Vessels for Refrigerant Equipment
JB/T 7245 Stop Valve for Refrigeration Equipment
JB/T 7249 Terminology of Refrigeration Equipment
3 Terms and Definitions
Foreword I
1 Scope
2 Normative References
3 Terms and Definitions
4 Classification and Basic Parameters
5 Technical Requirements
6 Test Method
7 Inspection Rules
8 Marking, Packaging, Transportation and Storage
Appendix A (Normative) Air-tightness Test
Appendix B (Normative) Pneumatic Test
Appendix C (Normative) Hydraulic Test
Appendix D (Normative) Burst Test
Appendix E (Normative) Measuring Method of Vibration Value
