Abstract: A control device controls a plurality of inverter-driven pumps disposed between a heat source device and an air-conditioner. The control device includes a perceiving unit that perceives a cumulative operation time and a rotation speed distribution during operation of each of the pumps, a degradation degree derivation unit that derives a degradation degree of each of the pumps based on the cumulative operation time and the rotation speed distribution during operation of each of the pumps, and a determining unit that determines the pump to be next operated/stopped based on the degradation degree of each of the pumps. The degradation degree derivation unit further derives an increased amount of the degradation degree of each of the pumps in a predetermined period. The determining unit determines the pump to be next operated/stopped based on the increased amount of the degradation degree of each of the pumps in the predetermined period.

Abstract: A demand control device performs demand control in which energy consumption of heat source units is suppressed with regard to a heat source system having a plurality of the heat source units with capacities and/or output characteristics that are different. The demand control device includes a receiving section, a collecting section, an energy suppression amount value calculating section, a heat source output determining section, and a driving section. The receiving section receives a demand signal which requests starting of the demand control. The energy suppression amount value calculating section calculates an energy suppression amount value relating to an energy amount suppressed during the demand control. The heat source output determining section determines an output individually with regard to each of the plurality of heat source units based on the energy suppression amount value. The driving section drives each of the plurality of heat source units using the output.

Abstract: A control device controls a plurality of inverter-driven pumps disposed between a heat source device and an air-conditioner. The control device includes a perceiving unit that perceives a cumulative operation time and a rotation speed distribution during operation of each of the pumps, a degradation degree derivation unit that derives a degradation degree of each of the pumps based on the cumulative operation time and the rotation speed distribution during operation of each of the pumps, and a determining unit that determines the pump to be next operated/stopped based on the degradation degree of each of the pumps. The degradation degree derivation unit further derives an increased amount of the degradation degree of each of the pumps in a predetermined period. The determining unit determines the pump to be next operated/stopped based on the increased amount of the degradation degree of each of the pumps in the predetermined period.

Abstract: A demand control device performs demand control in which energy consumption of heat source units is suppressed with regard to a heat source system having a plurality of the heat source units with capacities and/or output characteristics that are different. The demand control device includes a receiving section, a collecting section, an energy suppression amount value calculating section, a heat source output determining section, and a driving section. The receiving section receives a demand signal which requests starting of the demand control. The energy suppression amount value calculating section calculates an energy suppression amount value relating to an energy amount suppressed during the demand control. The heat source output determining section determines an output individually with regard to each of the plurality of heat source units based on the energy suppression amount value. The driving section drives each of the plurality of heat source units using the output.

Abstract: An intermediary device for air conditioning control is connected to an air conditioning interface for generating and outputting an operation/non-operation request signal to a heat source on the basis of a room temperature and a temperature setting. The intermediary device has a receiving unit, a temperature-setting estimating unit, and a transmitting unit. The receiving unit receives the operation/non-operation request signal as input. The temperature-setting estimating unit calculates an estimated value of the temperature setting on the basis of at least the operation/non-operation request signal. The transmitting unit transmits to air conditioners the estimated value calculated in the temperature-setting estimating unit.