The disclosure is directed to techniques for a thermostat to determine the air temperature of a room based on measurements of temperatures sensors located inside a housing of the thermostat. Because the thermostat for an evaporative cooler operates at line voltage and controls current flowing to the evaporative cooler, the magnitude of current flowing through the thermostat may vary from nearly zero, when the thermostat is in the powered-off state, to a current on the order of several amps. The variation in current causes a variation in temperature inside the housing of the thermostat. The techniques of this disclosure compensate for changes the internal housing temperature caused by changes in operating mode. The compensation allows the temperature sensors inside the thermostat housing to determine the air temperature of the room in which the thermostat is located, without regard for the operating mode of the evaporative cooler system.

The disclosure is directed to techniques for a thermostat to determine the air temperature of a room based on measurements of temperatures sensors located inside a housing of the thermostat. Because the thermostat for an evaporative cooler operates at line voltage and controls current flowing to the evaporative cooler, the magnitude of current flowing through the thermostat may vary from nearly zero, when the thermostat is in the powered-off state, to a current on the order of several amps. The variation in current causes a variation in temperature inside the housing of the thermostat. The techniques of this disclosure compensate for changes the internal housing temperature caused by changes in operating mode. The compensation allows the temperature sensors inside the thermostat housing to determine the air temperature of the room in which the thermostat is located, without regard for the operating mode of the evaporative cooler system.

An outdoor unit of an air-conditioning apparatus is provided with an outdoor heat exchanger configured to cause refrigerant that flows in the outdoor heat exchanger and air to exchange heat with each other, a plurality of outdoor fans each configured to rotate by driving of a motor and send air to the outdoor heat exchanger, and a controller configured to control the driving of the motor. When operation of one of the plurality of outdoor fans is stopped, the controller is configured to control the motor such that a rotation frequency of each of the plurality of outdoor fans that is in operation after operation of the one of the plurality of outdoor fans is stopped is higher than a rotation frequency of each of the plurality of outdoor fans that is in operation before operation of the one of the plurality of outdoor fans is stopped.

An exemplary embodiment of the present disclosure provides a localized heating, ventilation, or air conditioning (HVAC) system comprising a moveable air delivery system comprising. The moveable air delivery system further comprising an air inlet configured to receive air and an air outlet configured to output the air into a space. The localized HVAC further comprising a movement system configured to move the air outlet in a generally planar manner. The movement system further comprising an air delivery support system configured to support the air outlet, the air delivery support system configured to move the air outlet in an air delivery plane.

An exemplary embodiment of the present disclosure provides a localized heating, ventilation, or air conditioning (HVAC) system comprising a moveable air delivery system comprising. The moveable air delivery system further comprising an air inlet configured to receive air and an air outlet configured to output the air into a space. The localized HVAC further comprising a movement system configured to move the air outlet in a generally planar manner. The movement system further comprising an air delivery support system configured to support the air outlet, the air delivery support system configured to move the air outlet in an air delivery plane.

An air conditioning control system includes a casing including paths through which air passes, dampers arranged at an entrance and an exit of each of the paths and operated to open or close the entrance and the exit according to a control signal, a heat and mass exchanger including a hygroscopic material for absorbing moisture and arranged across the paths to be rotated with respect to the casing, a driving unit rotating the heat and mass exchanger, a heat exchange unit having a heat transfer medium flowing inside the heat exchange unit and arranged on at least one of the paths, and a controller opening or closing the entrance and the exit of the paths by applying a control signal to the dampers, and changing a rotation speed of the heat and mass exchanger by applying a control signal to the driving unit, according to operation modes.

An air conditioning control system includes a casing including paths through which air passes, dampers arranged at an entrance and an exit of each of the paths and operated to open or close the entrance and the exit according to a control signal, a heat and mass exchanger including a hygroscopic material for absorbing moisture and arranged across the paths to be rotated with respect to the casing, a driving unit rotating the heat and mass exchanger, a heat exchange unit having a heat transfer medium flowing inside the heat exchange unit and arranged on at least one of the paths, and a controller opening or closing the entrance and the exit of the paths by applying a control signal to the dampers, and changing a rotation speed of the heat and mass exchanger by applying a control signal to the driving unit, according to operation modes.

An ultraviolet air sanitizer apparatus for HVAC systems has a frame defining a flow passage therethrough configured such that the frame rear is insertable into a return air inlet of the HVAC system. A sanitizer light is disposed within the flow passage. When activated, the sanitizer light emits germicidal ultraviolet light into the surrounding flow passage. A light baffle is disposed within the flow passage upstream of the sanitizer light and allows air flow but blocks light. An air pressure sensing switch is electrically connected to the sanitizing light and configured to measure air pressure differential across an air filter. When the air pressure differential is a predetermined value or greater, which is indicative of air circulation by the HVAC system, the switch turns on the sanitizer light. When the pressure differential is less than the predetermined value, the switch turns off the sanitizer light.

Disclosed are an air outlet structure, an air outlet method for an air conditioner, and the air conditioner. The air outlet structure may include: a main air outlet channel, a main air outlet, an auxiliary air outlet and an adjusting device; the main air outlet and the auxiliary air outlet are communicated with the main air outlet channel; the adjusting device is provided between the main air outlet channel and the auxiliary air outlet as to make the main air outlet channel send out air through the main air outlet and/or the auxiliary air outlet. With the above structure, the air conditioner may have a broad air supplying scope and a uniform air speed and supply the air to an entire plane, and comfort of the air conditioner may be improved. Thus, the problem that an existing air conditioner has non-uniform air outlet effect may be effectively solved.

Disclosed are an air outlet structure, an air outlet method for an air conditioner, and the air conditioner. The air outlet structure may include: a main air outlet channel, a main air outlet, an auxiliary air outlet and an adjusting device; the main air outlet and the auxiliary air outlet are communicated with the main air outlet channel; the adjusting device is provided between the main air outlet channel and the auxiliary air outlet as to make the main air outlet channel send out air through the main air outlet and/or the auxiliary air outlet. With the above structure, the air conditioner may have a broad air supplying scope and a uniform air speed and supply the air to an entire plane, and comfort of the air conditioner may be improved. Thus, the problem that an existing air conditioner has non-uniform air outlet effect may be effectively solved.