An equipment management system comprising: a control terminal that is configured to transmit equipment information related to equipment; and a management apparatus that is configured to control the control terminal through a network, wherein the management apparatus includes a calculation unit that is configured to execute calculation of information processing that is based on information received from the control terminal, a load determining unit that is configured to determine a load level corresponding to a load of the information processing by the calculation unit, a reduction control unit that is configured to execute reduction control to reduce the load on the calculation unit in accordance with the load level, and a communication unit that is configured to transmit the load level to the control terminal, characterized in that the control terminal includes a communication condition changing unit that is configured to change, in accordance with the received load level, a communication condition for the equipment information to be transmitted from the control terminal to the management apparatus among a first condition in which transmissions of the equipment information under a predetermined communication condition are permitted, a second condition in which part of the transmissions is stopped, and a third condition in which all the transmissions are stopped. a control terminal that is configured to transmit equipment information related to equipment; and a management apparatus that is configured to control the control terminal through a network, wherein the management apparatus includes a calculation unit that is configured to execute calculation of information processing that is based on information received from the control terminal, a load determining unit that is configured to determine a load level corresponding to a load of the information processing by the calculation unit, a reduction control unit that is configured to execute reduction control to reduce the load on the calculation unit in accordance with the load level, and a communication unit that is configured to transmit the load level to the control terminal, a calculation unit that is configured to execute calculation of information processing that is based on information received from the control terminal, a load determining unit that is configured to determine a load level corresponding to a load of the information processing by the calculation unit, a reduction control unit that is configured to execute reduction control to reduce the load on the calculation unit in accordance with the load level, and a communication unit that is configured to transmit the load level to the control terminal, characterized in that the control terminal includes a communication condition changing unit that is configured to change, in accordance with the received load level, a communication condition for the equipment information to be transmitted from the control terminal to the management apparatus among a first condition in which transmissions of the equipment information under a predetermined communication condition are permitted, a second condition in which part of the transmissions is stopped, and a third condition in which all the transmissions are stopped.