IS 11360:1985 is the Indian Standard (BIS) for reciprocating compressors for refrigerants - specification. This standard specifies the requirements, rating conditions, testing methods, and marking for reciprocating refrigerant compressors. It covers both open-type and hermetic compressors, ensuring manufacturers provide standardized performance data for fair comparison and selection.
Specifies requirements for design, construction, performance, and testing of reciprocating compressors used in refrigeration and air conditioning systems.
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Refrigerating Capacity Tolerance | Measured capacity shall not be less than 95% of rated capacity. | Measured capacity shall be no less than 95% of the published rating. | AHRI 540-2020 |
| Power Input Tolerance | Measured power input shall not exceed 105% of rated power input. | Measured power input shall not exceed 105% of the published rating. | AHRI 540-2020 |
| Test Voltage Variation | Within ± 5% of rated voltage. | Within ± 1% of rated voltage. | AHRI 540-2020 |
| Standard Suction Superheat | Varies by refrigerant and condition (e.g., 20K for R-22 at -5°C Evap). | 10 K for most standard rating conditions, unless otherwise specified. | EN 12900:2013 |
| Hydrostatic Test Pressure (High Side) | 1.5 times the maximum working pressure, but not less than 24.5 kgf/cm². | Generally refers to specific safety standards (e.g., EN 378). Not part of performance rating standard. | EN 12900:2013 |
| Standard Rating Point Example (Med Temp) | Refrigerant R-12: -15°C Evaporating Temp, 30°C Condensing Temp. | Refrigerant R-134a: -6.7°C (20°F) Evaporating Temp, 43.3°C (110°F) Condensing Temp. | AHRI 540-2020 |
| Motor Winding Temperature Rise | Specified based on insulation class (e.g., 65°C for Class A). | Not specified; this parameter is outside the scope of performance rating standards. | AHRI 540-2020 / EN 12900:2013 |