A heating, ventilation, and/or air conditioning (HVAC) system includes a conduit assembly with a first conduit segment, a second conduit segment, and a rotational fitting fluidly coupling the first conduit segment and the second conduit segment to one another. The conduit assembly is configured to fluidly couple to a port of a heat exchanger of the HVAC system, and the rotational fitting is configured to enable the first conduit segment and the second conduit segment to rotate relative to one another between a first orientation and a second orientation and maintain a connection between the first conduit segment and the second conduit segment during relative rotation between the first conduit segment and the second conduit segment.

A heating, ventilation, and/or air conditioning (HVAC) system includes a conduit assembly with a first conduit segment, a second conduit segment, and a rotational fitting fluidly coupling the first conduit segment and the second conduit segment to one another. The conduit assembly is configured to fluidly couple to a port of a heat exchanger of the HVAC system, and the rotational fitting is configured to enable the first conduit segment and the second conduit segment to rotate relative to one another between a first orientation and a second orientation and maintain a connection between the first conduit segment and the second conduit segment during relative rotation between the first conduit segment and the second conduit segment.

An air conditioner includes: a first refrigerant tube that includes a first portion, and through which a liquid refrigerant flows; and a second refrigerant tube that includes a second portion that is disposed above the first portion and overlaps the first portion when viewed vertically, and through which a liquid refrigerant flows. The first portion is surrounded with a first heat insulating material.

An electric component box installed in an outdoor unit of an air conditioner includes: an electronic component accommodation unit that accommodates an electronic component; an intake port through which air is drawn in from outside the electric component box; a discharge port through which air is discharged from inside the electric component box; and a cooler disposed in an airflow path extending from the intake port to the electronic component accommodation unit and that cools air.

A refrigerant distributor branches refrigerant flowing in a refrigerant circuit into three, and includes a first bifurcate flow divider including a first pipe portion forming one inflow port, a second pipe portion and a third pipe portion forming two outflow ports communicating with the inflow port of the first pipe portion, and a second bifurcate flow divider including a fourth pipe portion forming one inflow port, and a fifth pipe portion and a sixth pipe portion forming two outflow ports communicating with the inflow port of the fourth pipe portion. The outflow port of the third pipe portion and the inflow port of the fourth pipe portion communicate with each other, and an angle θ formed by a first plane passing through the first bifurcate flow divider and a second plane passing through the second bifurcate flow divider is between 60 and 120 degrees.

A refrigerant distributor branches refrigerant flowing in a refrigerant circuit into three, and includes a first bifurcate flow divider including a first pipe portion forming one inflow port, a second pipe portion and a third pipe portion forming two outflow ports communicating with the inflow port of the first pipe portion, and a second bifurcate flow divider including a fourth pipe portion forming one inflow port, and a fifth pipe portion and a sixth pipe portion forming two outflow ports communicating with the inflow port of the fourth pipe portion. The outflow port of the third pipe portion and the inflow port of the fourth pipe portion communicate with each other, and an angle θ formed by a first plane passing through the first bifurcate flow divider and a second plane passing through the second bifurcate flow divider is between 60 and 120 degrees.

The present disclosure relates to an outdoor unit for an air conditioner. The present invention relates to an outdoor unit of a gas heat pump system. An outdoor unit of a gas heat pump system according to an embodiment of the present invention comprises: a storage tank which is disposed at a suction side of a compressor and stores a refrigerant to be supplied to the compressor; and a heat exchanger for performing heat exchange of a refrigerant flowing through a refrigerant pipe or cooling water flowing through a cooling water pipe, wherein the heat exchanger is supported by the storage tank. Therefore, the outdoor unit does not require a separate frame structure for installing the heat exchanger.

A building controller may include a housing having a back plate and a mounting clip, which may be slidably disposed relative to the back plate between a wall mount position used when mounting the building controller to the wall, and a DIN rail mount position used when mounting the building controller to a DIN rail. When in the wall mount position, the mounting clip and the back plate may be configured to hold the mounting clip in the wall mount position until at least a first threshold sliding force is applied to the mounting clip. When in the DIN rail mount position, the mounting clip and the back plate are configured to hold the mounting clip in the DIN rail mount position until at least a second threshold sliding force is applied to the mounting clip.

An air-conditioning apparatus includes a refrigerant circuit in which a compressor, a flow passage switching device, an outdoor heat exchanger, an indoor heat exchanger, a refrigerant container, a first expansion device and a second expansion device connected by pipes, wherein the indoor heat exchanger and the outdoor heat exchanger have inner volumes satisfying a relationship of an inner volume of the indoor heat exchanger<an inner volume of the outdoor heat exchanger, and a controller which, performs control so as to allow the flow passage switching device to switch the flow passage to the heating flow passage and allow an opening degree of the second expansion device to be larger than that of the first expansion device, starts the compressor, performs control so as to allow the opening degrees of the first expansion device and the second expansion device to be initial opening degrees for the cooling operation.

An air-conditioning apparatus includes a refrigerant circuit in which a compressor, a flow passage switching device, an outdoor heat exchanger, an indoor heat exchanger, a refrigerant container, a first expansion device and a second expansion device connected by pipes, wherein the indoor heat exchanger and the outdoor heat exchanger have inner volumes satisfying a relationship of an inner volume of the indoor heat exchanger<an inner volume of the outdoor heat exchanger, and a controller which, performs control so as to allow the flow passage switching device to switch the flow passage to the heating flow passage and allow an opening degree of the second expansion device to be larger than that of the first expansion device, starts the compressor, performs control so as to allow the opening degrees of the first expansion device and the second expansion device to be initial opening degrees for the cooling operation.