Abstract: An air-conditioner which performs an appropriate control in the event of a leak of refrigerant. The air-conditioner includes a refrigerant circuit, a refrigerant leak sensor which senses a leak of refrigerant in the refrigerant circuit, an indoor fan which delivers air to the indoor heat exchanger, and an indoor control circuit which, upon sensing a leak of refrigerant by the refrigerant leak sensor, controls the indoor fan based on whether the refrigerant sealed in the refrigerant circuit is flammable.

Abstract: A leakage sensing apparatus for sensing refrigerant leakage from an air-conditioner in an air-conditioned space air-conditioned by the air-conditioner includes a leakage sensing unit configured to sense the refrigerant leakage, a communication unit configured to transmit notification information indicating that the leakage has been sensed to an external apparatus via a communication network in a case where the leakage sensing unit has sensed the refrigerant leakage, and a power source unit configured to supply power to the leakage sensing apparatus independently of ON/OFF of a power supply to the air-conditioner.

Abstract: Provided is an air-conditioner which performs an appropriate control in the event of a leak of refrigerant. The air-conditioner (100) is provided with: a refrigerant circuit (10); a refrigerant leak sensor (25) which senses a leak of refrigerant in the refrigerant circuit (10); an indoor fan (Fi) which delivers air to the indoor heat exchanger (15); and an indoor control circuit 32 which, upon sensing a leak of refrigerant by the refrigerant leak sensor (25), controls the indoor fan (Fi) based on whether the refrigerant sealed in the refrigerant circuit 10 is flammable.

Abstract: An air conditioner in accordance with the invention comprises a first unit including a compressor and a heat exchanger; a second unit including a heat exchanger; a refrigerant circuit connecting the compressor and the heat exchanger of the first unit, with the heat exchanger of the second unit, through which a refrigerant flows; a refrigerant pressure reduction valve disposed in the refrigerant circuit and provided in the second unit; a control unit provided in the first unit for controlling the refrigerant pressure reduction valve in the second unit.

Abstract: A heat exchanger, as mounted on the outdoor unit or indoor unit of an air conditioner system, is formed with a plurality of passages for a refrigerant. To this heat exchanger, there is connected a refrigerant distributor for distributing the refrigerant to the individual passages or for collecting the distributed refrigerant. This refrigerant distributor is constructed by soldering two corrugated plate members to form a refrigerant conduit between the corrugations. Before these plate members are soldered, the refrigerant conduit is either partially constricted to form a throttle portion or partially bulged to form a filter portion by fitting a filter member in the bulging portion when the plate members are soldered. Thus, the refrigerant distributor can set the diversion of the refrigerant to a predetermined ratio by the simple device while reducing the space and lowering the cost.

Abstract: An air conditioner comprises a first unit including a compressor and a heat exchanger, a second unit including a heat exchanger, a refrigerant circuit connecting the compressor and the heat exchanger of the first unit, with the heat exchanger of the second unit, through which a refrigerant flows, a refrigerant pressure reduction valve disposed in the refrigerant circuit and provided in the second unit, a control unit provided in the first unit for controlling the refrigerant pressure reduction valve in the second unit.

Abstract: An embedded-type handle assembly may have its lock bars arranged either horizontally or vertically. In the assembly: a shaft 9 is rotatably inserted in a cylindrical bearing portion 8 of a casing 1; a link plate 18 has a circular hole 16 through which the link plate 18 is mounted on the shaft 9 in an insertion manner; a lock bar 20 has its base-end portion connected with one end 19 of the link plate 18 through a pivot 27; a lock bar 23 has its base-end portion connected with the other end 22 of the link plate 18 through a pivot 28; the link plate 18 has a follower surface 25 in a side surface of the other end portion 22, the surface 25 being pushed by the operating-foot plate 5 of the handle 2; and, the link plate 18 has a follower projection 26 in a side surface of its intermediate portion, the projection 26 being pushed by the operating-foot plate 5 of the handle 2.

Abstract: In a high-rigidity structure made of sheet metal, in order to prevent increases of vibrations and noises owing to deterioration of the rigidity caused by decreasing the thickness of the sheet-metal, ribs having a height 10 times or more larger than the sheet-metal thickness are formed on bent portions of the sheet-metal structure, corrugated continuous grooves having two or more crest portions are formed on a surface of each of the bent portions on a smaller-radius side, and concave/convex sections corresponding to the continuous grooves are formed on side surfaces of each of the ribs which connect a larger-radius side and the smaller-radius side.

Abstract: A removable lock handle assembly comprises a door side casing, a disk-like drive member, an eccentric drive projection provided on the rear surface of the drive member, a driven projection provided on the front surface of the drive member, a removable lock handle having a driven projection to be engaged with the driven projection of the drive member for rotation thereof when the handle is inserted into the casing through a front handle insertion hole thereof, a coil spring fitted in an annular groove formed in a central part of the front surface of the drive member, a latch provided in the casing such as to be projected and retreated from and into the casing through a side hole formed therein, a shutter provided on the back side of the handle insertion hole for closing the hole, the drive member being inserted in the casing, the latch having a driven projection for engagement with the drive projection of the drive member, a return compression coil spring received in a blind hole formed in the latch on the sid