Installation Install, test, and commission air conditioning systems (split units, VRV/VRF, AHU, FCU, etc.). Set up refrigerant piping, ducting, wiring, and drainage systems. Ensure all installations comply with safety standards and manufacturer specifications. Maintenance Perform regular preventive maintenance, including cleaning filters, coils, and condensers. Check refrigerant levels, system pressure, and electrical connections. Record maintenance logs and report any system irregularities. Repair & Troubleshooting Diagnose and repair air conditioning faults (mechanical, electrical, or refrigerant-related). Replace defective components such as compressors, motors, or thermostats. Respond to emergency breakdowns promptly and efficiently. Testing & Quality Checks Conduct system performance tests and ensure energy efficiency. Calibrate thermostats and control systems for optimal functioning. Safety & Compliance Follow workplace safety protocols (e.g., lock-out/tag-out, handling refrigera...