A vapor-compression system includes a centrifugal compressor configured to increase a pressure of a refrigerant based on at least one of an activation of a device or the device being equal to or above a first threshold temperature. A fluid communication system is configured to provide, to the device, a portion of the refrigerant in a liquid state. The portion of the liquid refrigerant in a liquid state is configured to have a saturation temperature equal to or below the first temperature threshold.

The present invention provides a manifold refrigerant module comprising: a manifold plate having a plurality of refrigerant flow paths formed therein; and a plurality of heat exchangers arranged on the manifold plate, wherein the plurality of heat exchangers are arranged in the left-right direction or the up-down direction.

The present invention provides a manifold refrigerant module comprising: a manifold plate having a plurality of refrigerant flow paths formed therein; and a plurality of heat exchangers arranged on the manifold plate, wherein the plurality of heat exchangers are arranged in the left-right direction or the up-down direction.

A heat supply apparatus comprises: a compressor compressing refrigerant; a first heat exchanger being connected to the compressor through a refrigerant pipe and exchanging heat between refrigerant and water; a second heat exchanger being connected to the compressor through a refrigerant pipe and exchanging heat between refrigerant and air; a first expansion device disposed in a refrigerant pipe connecting the first heat exchanger and the second heat exchanger; a second expansion device connected to the first expansion device in parallel and opened and closed according to an electrical signal; and a controller controlling the degree of opening of the second expansion device, wherein, if heating operation is started, and temperature of water flowing into the first heat exchanger is higher than temperature of refrigerant flowing into the first heat exchanger, the controller opens the second expansion device.

A heat supply apparatus comprises: a compressor compressing refrigerant; a first heat exchanger being connected to the compressor through a refrigerant pipe and exchanging heat between refrigerant and water; a second heat exchanger being connected to the compressor through a refrigerant pipe and exchanging heat between refrigerant and air; a first expansion device disposed in a refrigerant pipe connecting the first heat exchanger and the second heat exchanger; a second expansion device connected to the first expansion device in parallel and opened and closed according to an electrical signal; and a controller controlling the degree of opening of the second expansion device, wherein, if heating operation is started, and temperature of water flowing into the first heat exchanger is higher than temperature of refrigerant flowing into the first heat exchanger, the controller opens the second expansion device.

A thermal expansion valve with one-way control function includes a valve body having an inlet passage and an out passage, a temperature sensor installed on one end of the valve body, and a first valve core component installed in an inside chamber of the valve body. The first valve core component includes a first valve core and a valve rod against the temperature sensor. The valve body also includes an accommodation component extending from said the inlet passage into the valve body and coaxially installed with the inlet passage. The accommodation component has a second valve port connected with the inside chamber. The accommodation component has a second valve core component having a supporting piece and a second valve core matching the second valve port. The processing of the structure is convenient and the assembly of the second valve core component is simple and reliable.

An integrated air conditioning system includes an outdoor unit, an indoor unit, and a ventilation device. The ventilation device includes a housing including an inlet flow path, and an outlet flow path, a total heat exchanger in which air flowing through the inlet flow path and air flowing through the outlet flow path exchange heat with each other, a first heat exchanger disposed on the inlet flow path to receive a refrigerant from the outdoor unit, a second heat exchanger disposed upstream of the first heat exchanger on the inlet flow path and connected to the first heat exchanger to be supplied with refrigerant discharged from the first heat exchanger, a first expansion device to expand the refrigerant supplied to the first heat exchanger from the outdoor unit, and a second expansion device to expand the refrigerant discharged from the first heat exchanger and supplied to the second heat exchanger.

An integrated air conditioning system includes an outdoor unit, an indoor unit, and a ventilation device. The ventilation device includes a housing including an inlet flow path, and an outlet flow path, a total heat exchanger in which air flowing through the inlet flow path and air flowing through the outlet flow path exchange heat with each other, a first heat exchanger disposed on the inlet flow path to receive a refrigerant from the outdoor unit, a second heat exchanger disposed upstream of the first heat exchanger on the inlet flow path and connected to the first heat exchanger to be supplied with refrigerant discharged from the first heat exchanger, a first expansion device to expand the refrigerant supplied to the first heat exchanger from the outdoor unit, and a second expansion device to expand the refrigerant discharged from the first heat exchanger and supplied to the second heat exchanger.

An integrated air conditioning system includes a ventilation device comprising a first temperature sensor, a first humidity sensor, and a heat exchanger installed on the inlet flow path. An indoor unit configured to discharge heat-exchanged air into an indoor space. An outdoor unit configured to supply a refrigerant to the ventilation device and the indoor unit. A controller connected to the ventilation device, the indoor unit, and the outdoor unit. The controller configured to obtain an indoor temperature from the first temperature or the second temperature sensor. The controller configured to obtain indoor humidity from the first humidity sensor or the second humidity sensor and configured to control at least one of the ventilation device and the indoor unit based on the indoor temperature and the indoor humidity.

An integrated air conditioning system includes a ventilation device comprising a first temperature sensor, a first humidity sensor, and a heat exchanger installed on the inlet flow path. An indoor unit configured to discharge heat-exchanged air into an indoor space. An outdoor unit configured to supply a refrigerant to the ventilation device and the indoor unit. A controller connected to the ventilation device, the indoor unit, and the outdoor unit. The controller configured to obtain an indoor temperature from the first temperature or the second temperature sensor. The controller configured to obtain indoor humidity from the first humidity sensor or the second humidity sensor and configured to control at least one of the ventilation device and the indoor unit based on the indoor temperature and the indoor humidity.