Equipment management system and refrigerant amount estimation method

An equipment management system comprising:

• an equipment having a refrigerant;
• a processor configured to
• acquire measurement information indicating a result of measuring a temperature of the refrigerant in the equipment, electrical characteristics of the equipment, and environmental information around the equipment, and
• estimate an amount of the refrigerant in the equipment based on the measurement information, equipment information on the equipment and equipment installation information on an installation environment of the equipment, the equipment information and the equipment installation information being preset, wherein
• the equipment installation information includes at least one of a position of an installation location of the equipment, a building specification, and an installation direction,
• the processor is configured to estimate performance of the equipment based on the equipment information, the equipment installation information, and the estimated amount of the refrigerant in the equipment, and
• the processor is configured to cause the equipment to perform pre-cooling or pre-warming operation, based on the estimated performance of the equipment.