Air Conditioning Maintenance Process:

1. Comprehensive Inspection. When air conditioning units fail, a thorough inspection is required, first checking the machine's pressure and the operating temperature values at various points in the system; for split systems, this must be done with the indoor and outdoor units connected; connect a pressure gauge to detect the exhaust pressure of the compressor. Please connect the gauge when the machine is stationary to avoid high-temperature burns during operation; use your hand to feel the temperature of the compressor exhaust to the condenser section pipeline. First, use your fingers to quickly test some temperatures to prevent injury.

2. Welding Operations. Prior to welding, release the Freon from the system. Always wear protective goggles to prevent eye injury. During the Freon release, operators should not face the process port or exhale towards others to avoid frostbite from Freon. Adhere to welding operation requirements to prevent poor installation or injury to others.

3. Power Operation. When repairing the outdoor unit of a split system separately, power operation is prohibited when the high-pressure or low-pressure valves are closed to avoid accidents such as system bursting due to excessive pressure or explosions caused by the compressor running in a vacuum. When inspecting the outdoor fan system, power operation is required, and it must be ensured that the air conditioner panel and fan grille are properly installed.