| 1 | Cooling Capacity Accuracy | Check whether rated capacity is supported by test data under clearly stated evaporating, condensing, ambient-temperature, and refrigerant conditions. | AHRI 540; ISO 5149; applicable national testing procedures | 15% | Capacity tables include operating conditions and test tolerances |
| 2 | Energy Efficiency | Compare COP, EER, SEER, input power, compressor efficiency, fan power, and part-load performance for the intended duty cycle. | ISO 16358; EN 14511; local energy-efficiency requirements | 15% | Provides full-load and part-load energy data |
| 3 | Operating Temperature Range | Confirm stable operation in the required ambient and evaporating-temperature ranges, including high-ambient and low-temperature applications. | Project specification; ISO 5149; equipment performance test data | 10% | Range is documented with derating data |
| 4 | Refrigerant Compatibility | Verify compatibility with the specified refrigerant, oil, seals, valves, compressor, and system pressure requirements. | ASHRAE 34; ISO 5149; EN 378; applicable refrigerant regulations | 10% | Refrigerant charge, safety class, and pressure limits are stated |
| 5 | Manufacturing Quality System | Review process control, incoming inspection, brazing procedures, pressure testing, leak testing, traceability, and final inspection records. | ISO 9001 quality-management principles; factory audit records | 12% | Documented inspection checkpoints and batch traceability |
| 6 | Safety and Compliance | Check electrical safety, pressure-vessel protection, emergency controls, wiring quality, grounding, guarding, and required market approvals. | IEC 60335; EN 378; ISO 5149; destination-market requirements | 12% | Provides valid certificates and product safety files |
| 7 | Customization Capability | Evaluate options for voltage, frequency, compressor selection, control logic, enclosure, heat exchanger sizing, sound reduction, and installation layout. | Approved drawings; technical change-control procedures | 8% | Supplies approved drawings before production |
| 8 | Reliability and Service Life | Review component quality, endurance testing, vibration control, corrosion protection, maintenance intervals, and failure-rate records. | Reliability test plans; preventive-maintenance documentation | 8% | Offers documented life-cycle and maintenance data |
| 9 | Delivery and Supply-Chain Control | Assess standard lead time, production capacity, critical-component availability, packaging quality, spare-parts planning, and export documentation. | Production plan; quality and logistics records; export documentation | 5% | Provides a realistic schedule and documented packing standard |
| 10 | After-Sales Technical Support | Verify commissioning assistance, troubleshooting response, manuals, wiring diagrams, spare-parts availability, warranty terms, and training. | Warranty policy; service-level agreement; technical documentation | 5% | Provides multilingual documentation and defined response procedures |