Abstract: An air conditioner includes an outdoor unit including a compressor for compressing a refrigerant and an outdoor heat exchanger for exchanging heat between the refrigerant and outside air. A ventilation device is connected to the outdoor unit through a liquid refrigerant pipe, a high-pressure refrigerant pipe, and a low-pressure refrigerant pipe. The ventilation device supplies the outside air to an indoor space, and discharges indoor air to the outside. The ventilation device includes a case, a main heat exchanger, a recovery heat exchanger, a refrigerant distributor, and a re-heat heat exchanger. A liquid refrigerant pipe valve is disposed in the liquid refrigerant pipe for controlling an amount of refrigerant.

Abstract: An auxiliary mounting device and mounting method for a saddle-type window air conditioner. The auxiliary mounting device comprises a base and two damping assemblies; the base is provided on a window, one of the damping assemblies is provided on one end of a connecting portion close to an indoor portion, and ends thereof are respectively connected to the base and the indoor portion; and the other damping assembly is provided on one end of the connecting portion close to an outdoor portion, and ends thereof are respectively connected to the base and the outdoor portion.

Abstract: A compressor and a refrigeration device are disclosed. The compressor has a sealing container, a motor portion and a compressing mechanism portion, and a bypass valve. The motor portion and the compressing mechanism portion are both provided in the sealing container. The compressor has an exhaust side and a suction side spaced apart from each other. The exhaust side is connected to the bypass valve. The exhaust side is suitable for exhausting air to external parts through the bypass valve, or suitable for communicating with the suction side through the bypass valve.

Abstract: A heat pump includes a refrigerant loop. The refrigerant loop includes a compressor, a first region of a first heat exchanger, a first branching point, a first shutoff valve, a second shutoff valve, and a second heat exchanger. The compressor includes a low-pressure inlet, a mid-pressure inlet, and an outlet. The first heat exchanger is positioned immediately downstream of the outlet of the compressor. The first branching point is positioned immediately downstream of the first region of the first heat exchanger. The refrigerant loop splits into a first path and a second path at the first branching point. The first shutoff valve is positioned along the first path and immediately downstream of the first branching point. The second shutoff valve is positioned along the second path and immediately downstream of the first branching point. The second heat exchanger is downstream of the first heat exchanger.

Abstract: A vapor compression system (20; 120; 220; 320) has: first (22A; 122A; 222A) and second (22B; 122B; 222B) compressors; first (40) and second (46) heat exchangers; and one or more expansion devices (52; 52A, 52B). Means (32A, 32B; 32A, 32B, 126A, 126B; 32A, 32B, 232A, 232B) are provided for switching the system between operation in first and second modes using the respective first and second compressors. In the first mode: the first compressor compresses refrigerant; the compressed refrigerant is cooled in the first heat exchanger; the cooled refrigerant is expanded in at least one of the one or more expansion devices; and the expanded refrigerant absorbs heat in the second heat exchanger. In the second mode: the second compressor compresses refrigerant; the compressed refrigerant is cooled in the second heat exchanger; the cooled refrigerant is expanded in at least one of the one or more expansion devices; and the expanded refrigerant absorbs heat in the first heat exchanger.

Abstract: A multi-air conditioner for heating/cooling operation may include: at least one indoor unit which is installed in a room, and includes an indoor heat exchanger; an outdoor unit which is connected to the indoor unit through a refrigerant pipe, and includes an outdoor heat exchanger, a compressor, an outdoor expansion valve, and a four-way valve; at least one leakage blocking valve which is formed on the refrigerant pipe, and blocks a refrigerant flow in the refrigerant pipe when a refrigerant leak occurs from the refrigerant pipe in the room; and a buffer unit which is installed on the refrigerant pipe between the indoor unit and the outdoor unit, and collects refrigerant leaking from the refrigerant pipe. Accordingly, when the refrigerant leaks into the room, it is possible to minimize the amount of the leaking refrigerant by collecting the refrigerant in the buffer tank.

Abstract: A system includes a first set of coils that receive coolant from a first coolant line and provide the coolant to a second coolant line. A second set of coils that receive coolant from a third coolant line and provide the coolant to a fourth coolant line. A first valve regulates flow of coolant between the first and third coolant line. A second valve regulates flow of coolant between the second and the fourth coolant lines. A third valve regulates flow of coolant between the fourth coolant line and a fifth coolant line coupled to a water evaporator and a three-way valve. The three-way valve regulates flow of coolant between the fifth coolant line, the third coolant line, and a coolant input line. A fourth valve regulates flow of coolant between the second coolant line and a water condenser. A controller adjusts the valves to operate in a high temperature mode.

Abstract: A system includes a first set of coils that receive coolant from a first coolant line and provide the coolant to a second coolant line. A second set of coils that receive coolant from a third coolant line and provide the coolant to a fourth coolant line. A first valve regulates flow of coolant between the first and third coolant line. A second valve regulates flow of coolant between the second and the fourth coolant lines. A third valve regulates flow of coolant between the fourth coolant line and a fifth coolant line coupled to a water evaporator and a three-way valve. The three-way valve regulates flow of coolant between the fifth coolant line, the third coolant line, and a coolant input line. A fourth valve regulates flow of coolant between the second coolant line and a water condenser. A controller adjusts the valves to operate in a low temperature mode.

Abstract: An air conditioning appliance includes a housing, a drain pan positioned below the housing, and a plenum which is attached to the housing and to the drain pan. The drain pan includes an upper surface in contact with the housing and a socket configured to receive a leg. The housing of the air conditioning appliance rests on the upper surface of the drain pan, such that the drain pan defines a platform which structurally supports the housing of the air conditioning appliance.

Abstract: Methods and apparatuses for expelling heat may be provided. For example, an apparatus may comprise a rotating assembly, a support structure, a condenser water tank, and a control system. The apparatus may rotate the rotating assembly such that tanks of the assembly are rotated into and out of the condenser water tank. The rotation may be self-starting and controlled by a control system.

Abstract: An auxiliary drain pan for installation vertically below a humidifier. The pan has a base and a peripheral wall around the base and a single opening formed in the base adapted to form an anti-backflow connection with a conduit from the humidifier for directing liquid from the humidifier through the opening and a drainage connector, the anti-backflow connection preventing a reverse flow of liquid from the opening into the humidifier. The pan has a structure for supporting the base and having connecting features for connection with a vertical surface in an installed position, with the base secured in a substantially horizontal position in the installed position.

Abstract: An absorption chiller includes a heating medium supply pipe configured to supply a heating medium from a heating medium pipe to a cooling water pipe; a cooling water discharge pipe configured to discharge a cooling water from the cooling water pipe to the heating medium pipe; a control valve provided on the heating medium supply pipe and the cooling water discharge pipe, respectively; and a controller configured to cause the control valve to be opened and to cause the heating medium in the heating medium pipe to be introduced into the cooling water pipe, when a temperature detected by a cooling water temperature detector is equal to or lower than a predetermined temperature, in a wet lay-up state including a state in which a cooling water inlet shut-off valve and a cooling water outlet shut-off valve are closed and the cooling water pipe is filled with the cooling water.