Abstract: A fluid control device includes a slide valve movable in a chamber along an axis between a closed position, in which the slide valve is pressed axially against a fixed seat, and an open position, in which the slide valve is axially separated from the seat and a thermomechanical actuator, which is able to drive the slide valve depending on the temperature of the fluid in the chamber and which includes both a thermostatic element, including a fixed piston, and a body forming a heat-sensitive part of the thermomechanical actuator, arranged inside the chamber The piston being mounted with the ability to move along the axis on the body so that the piston deploys against the body when the thermally expandable material expands, and a return spring, interposed axially between the casing and the body so as to retract the piston away from the body when the thermally expandable material contracts.

Abstract: An antifreeze valve unit has a valve body provided with at least one opening for the delivery of a fluid used in an air conditioning plant; this unit has a first thermostatic valve, fitted at a drain outlet to drain the fluid in function of the fluid temperature, and a second thermostatic valve fitted at the drain outlet to enable or prevent the drain of the fluid in function of the external environment temperature. This antifreeze valve unit operates reliably in any temperature condition of the inner fluid and of the external environment temperature, and enables the plant to be drained only if a real possibility of fluid freezing occurs.

Abstract: A refrigeration system includes an evaporator configured to receive a flow of refrigerant and transfer heat into the refrigerant within the evaporator to provide cooling for a temperature-controlled space, an expansion valve operable to modulate the flow of refrigerant into the evaporator, a liquid level sensor configured to measure a level of liquid accumulated within a component of the refrigeration system, and a controller configured to operate the expansion valve to increase the flow of refrigerant into the evaporator or decrease the flow of refrigerant into the evaporator based on the level of liquid measured by the liquid level sensor.

Abstract: A method for adjusting temperature controls of a refrigerator appliance. The method includes scanning an indicium with a user interface, transmitting data corresponding to a registration request from the user interface to a server, and receiving, at the user interface, data corresponding to a temperature control adjustment instruction from the server.

Abstract: A performance degradation diagnosis system includes a determining unit, and control unit. A refrigeration cycle apparatus includes a refrigerant circuit having a compressor, heat-source-side heat exchanger, and use-side heat exchanger. The determining unit determines, based on an index indicating an operation state of the refrigeration cycle apparatus, performance degradation of the refrigeration cycle apparatus with respect to each of a plurality of performance degradation factors. In a case in which the determining unit determines performance degradation, the control unit grasps an operation condition of the refrigeration cycle apparatus which is operating.

Abstract: A refrigeration system and a control method of the refrigeration system are provided. The refrigeration system includes a cooling circuit and a compressor, an evaporator assembly, and a condenser assembly sequentially arranged on the cooling circuit, and the refrigeration system further includes: a liquid pump cooling assembly, arranged on the cooling circuit and located between the condenser assembly and the evaporator assembly, the liquid pump cooling assembly includes a housing and a liquid pump arranged in the housing, the housing defines a cavity having a liquid reserving function, a refrigerant inlet, a first outlet connected to the cavity and a second outlet connected to the liquid pump, an outlet of the condenser assembly is in connected with the refrigerant inlet, and both the first and second outlets are connected with an inlet of the evaporator assembly; a control assembly, connected with the compressor and the liquid pump.

Abstract: A multi-air conditioner for heating and cooling may include at least one indoor unit, an outdoor unit, and at least one leak shut-off valve. The at least one indoor unit is installed in an indoor space and includes an indoor heat exchanger and an indoor expansion valve. The outdoor unit is connected to the at least one indoor unit via a refrigerant pipeline and includes an outdoor heat exchanger, a compressor, an outdoor expansion valve, and a four-way valve. The outdoor unit may decrease a pressure of the refrigerant pipeline when a refrigerant leak occurs from the refrigerant pipeline. The at least one leak shut-off valve is provided on the refrigerant pipeline and blocks a flow of refrigerant in the refrigerant pipeline when a refrigerant leak from the refrigerant pipeline occurs in the indoor space.

Abstract: A window air conditioner insulation kit to be used with a window air conditioner mounted in a window including a left side panel to be pressed in a first opening between a side of the air conditioner and a left side jamb of the window. A right side panel to be pressed in a second opening between a right side of the air conditioner and a right side jamb of the window. A top panel to extend and be pressed in a third opening between the left side jamb and the right side jamb. The top panel having an upper flap, a first side flap, a second side flap and a central flap which extend down and over an upper section of the first side flap, an upper section of the second side flap and onto the top of the AC.

Abstract: A retrofit control of a ductless mini-split system (DMSS) for use in relation to temperature monitoring within a property. Data indicating a command is transmitted to a controller associated with a ductless mini-split system. The command causes the controller to configure an operation to be performed by the ductless mini-split system. Power output associated with the ductless mini-split system is monitored based on transmitting the data indicating the command. A determination that the operation has been performed by the ductless mini-split system is made based on monitoring the power output. Data indicating that the operation has been performed by the ductless mini-split system is provided for output.

Abstract: A control method for a refrigerator includes sensing a temperature of a storage room; operating a cool air supply at a cooling power when the sensed temperature of the storage room is equal to or above a first reference temperature; operating the cool air supply at a delay power, which is less than the cooling power, when the sensed temperature of the storage room is equal to or below a second reference temperature, which is less than the first reference temperature while the cool air supply is operating at the cooling power; and adjusting the cooling power or the delay power of the cool air supply according to the temperature of the storage room while the cool air supply is operating at the delay power, and operating the cool air supply at the determined adjusted cooling power or delay power.

Abstract: A dynamic receiver is included in parallel to an expander of a heating, ventilation, air conditioning, and refrigeration (HVACR) system. The dynamic receiver allows control of the refrigerant charge of the HVACR system to respond to different operating conditions. The dynamic receiver can be filled or emptied in response to the subcooling observed in the HVACR system compared to desired subcooling for various operating modes. The HVACR system can include a line directly conveying working fluid from compressor discharge to the dynamic receiver to allow emptying of the dynamic receiver to be assisted by injection of the compressor discharge.

Abstract: A system includes an air conditioning device with a heat exchanger that sends conditioned air to an air conditioned space, a ventilation device that ventilates the air conditioned space, a refrigerant sensor that detects a concentration of a refrigerant in the air conditioned space, and a control unit that controls operations of the air conditioning device and ventilation device. On determination that the refrigerant concentration acquired from the refrigerant sensor exceeds a first predetermined value, the control unit sets an operation of a compressor of the air conditioning device to a stop state and sets the ventilation device to an operating state. On determination that the refrigerant concentration that has exceeded the first predetermined value becomes equal to or less than the first predetermined value, the control unit continues the stop state of the compressor and operating state of the ventilation device until a predetermined timing.

Abstract: Examples of the present disclosure relate to climate control systems and outdoor units that use humidity measurements associated with the outdoor environment to improve the operation of one or more components. In some examples, an outdoor unit of a climate control system includes a housing, a compressor located within the housing that circulate a refrigerant fluid, and a humidity sensor that detects a humidity condition of an outdoor environment. The outdoor unit may further include control circuitry that controls the compressor by establishing a target parameter, where the target parameter is associated with a property of a refrigerant fluid. The control circuitry may further receive measurements associated with the humidity condition of the outdoor environment, adjust the target parameter based on the measurement, monitor the property of the refrigerant fluid, compare the monitored property to the adjusted target parameter, and adjust operation of the compressor based on the comparison.

Abstract: A cooling system partially floods the low temperature low side heat exchangers (e.g., freezers) in the system. An accumulator is positioned between the low temperature low side heat exchangers and the low temperature compressor. The accumulator collects the refrigerant (both liquid and vapor) from the flooded low temperature low side heat exchangers. Refrigerant discharged by the low temperature compressor is fed through the accumulator so that heat can be transferred to the refrigerant collected in the accumulator. As a result, the temperature of the refrigerant discharged by the low temperature compressor drops before that refrigerant reaches the medium temperature compressor.

Abstract: A refrigeration appliance and method for operation are provided. The appliance includes a cabinet and a door. The cabinet includes a controller, a first communications device, and a magnetic device. the door includes an energy source, a first switch, a second switch, a second communications device, and a user interface device. The second switch is operably coupled to the second communications device and the user interface device. The second communications device is in selective operable communication with the first communications device. The first switch is configured to operably couple the energy source to the second switch to allow energy to flow to the second switch, the second communications device, and the user interface device when the door is open. The first switch is configured to discontinue energy flow to the second switch when the door is closed.

Abstract: An ice maker includes an upper tray defining an upper chamber that is a portion of an ice chamber, a lower tray rotatable relative to the upper tray and defining a lower chamber that is another portion of the ice chamber, wherein the lower chamber is disposed under the upper chamber, an upper heater disposed around the upper tray, for providing heat to the upper chamber, and a lower heater disposed around the lower tray, for providing heat to the lower chamber, wherein in an ice making position, a distance from a horizontal central line passing a contact surface of the upper tray and the lower tray to the upper heater is shorter than a distance from the horizontal central line to the lower heater.

Abstract: A dual reclaim coil with a smart control application is provided that allows the refrigerant inlet to the HVAC unit switch between the two sides of the condenser for heat reclaim for refrigerants such as CO2 which have a relatively low critical temperature compared to hydrofluorocarbon refrigerants. Heat reclaim after the exit of gas from the condenser utilizes the high temperature and pressure of the condenser/gas cooler outlet while a CO2 refrigerant system is operating above critical point. This occurs in hot ambient conditions, when the need for heating in the space is not as great as in the wintertime and the available heat at the condenser/gas cooler's outlet is sufficient to satisfy the heating load. When the CO2 refrigerant system is operating below the critical point, heat reclaim is carried out at the compressor discharge.

Abstract: A hybrid shellfish cooling system employs DC and AC cooling units using both solar power and AC electrical supply as energy sources. As temperature control and uniform temperature distribution in the cooling system are critical factors in reducing vibrio growth on raw oysters and reducing energy consumption, the system is equipped with a divider that optimizes airflow through the cooling system interior cabinet to achieve uniform temperature distribution in six individual internal compartments. Tests indicated that an average of 130 min. cooling was required to reach the suggested oyster temperatures of 7.2° C. and meet the cooling time requirement (i.e., 10 h or less). Airflow is further optimized via fan location and airflow direction, whereby configuration of a circulation fan on a lower part of the 12-volt DC section with an air supply from the 12-volt DC section to the 110-volt AC section achieves relatively uniform temperature distribution.

Abstract: A portable system for managing the temperature of a patient during transport includes a heater/cooler configured to be in fluid communication with a heat transfer catheter or a heat transfer surface pad; a pump for circulating heat exchange fluid; an alternating current power supply; and a processor configured to indicate if the alternating current power supply connection to the source of alternating current is interrupted. A rechargeable battery may be configured to provide power to the system when the alternating power supply is not connected to a source of alternating current. If the system is powered on and the connection to the alternating current source is interrupted, the system may automatically switch to receiving power from the rechargeable battery. The processor may alert an operator of the interruption of the connection to the alternating current source and indicate to the operator the amount of energy remaining in the battery.

Abstract: A thermostatic mixing valve includes a first cold water inlet, a first cold water outlet, a second hot water inlet, a second mixed cold/hot water outlet, a thermostatic member and a shutter operated by the thermostatic member to ensure that the mixed water is kept at a predetermined temperature. A hollow insert is provided along the first cold water inlet and includes longitudinal fins on the outer wall thereof to obtain two separate coaxial passages, for sending the cold water both directly to the first cold water outlet and to the area for mixing it with the hot water through the shutter to supply the mixed water to the second hot water outlet.