Abstract: The disclosure provides a control method and a device for an air conditioner. The method includes: a first reward matrix is constructed according to multiple sets of target operating parameters of an air conditioner, a maximum expected benefit of performing a current action in a current state is calculated based on the first reward matrix and a Q-learning algorithm, wherein the current state is represented by a current indoor environment temperature and a current outdoor environment temperature; target action parameters under the maximum expected benefit are acquired, and operation of the air conditioner is controlled based on second target action parameters, wherein the second target action parameters at least include a second target operating frequency of the compressor, a second target opening degree of the electronic expansion valve and a second target rotating speed of the external fan.

Abstract: A refrigerant management system includes at least one computer including an acquisition unit and a generation unit. The acquisition unit, during installation and/or maintenance of a refrigerant use device, acquires first information, refrigerant already filled quantity, and refrigerant used quantity. The first information includes device specifying information, worker information, and refrigerant additionally filled quantity information. The refrigerant already filled quantity is preliminarily filled in the refrigerant use device, in accordance with the device specifying information. The refrigerant used quantity used in the refrigerant use device by totaling the refrigerant already filled quantity acquired and the refrigerant additionally filled quantity included in the refrigerant additionally filled quantity information.

Abstract: A method for controlling a refrigerator includes operating, for a set duration, a heating element of a sensor which responds to changes in air flow; sensing the temperature of the heating element in on or off state; and sensing residual frost on an evaporator on the basis of the difference in value of the temperature between a first sensed temperature, which is the lowest value, and a second sensed temperature, which is the highest value, from among the sensed temperatures of the heating element.

Abstract: There is described a zone controller and method for identifying a root cause failure at a zone. The zone controller determines whether a temperature measurement deviates from a temperature setpoint of the temperature sensor, and generates a first repair code, a second repair code, and/or a third repair code. The first repair code replaces a temperature sensor in response to detecting that a reading of the temperature sensor has failed. The second repair code releases an operator override on the reading of the temperature sensor in response to detecting that the reading of the temperature sensor has been overridden. The third repair code releases an operator override on a setpoint of the temperature sensor in response to detecting that the setpoint of the temperature sensor is outside the predetermined setpoint range. One or more of these repair codes are provided to a remote device.

Abstract: Power cords are provided. A power cord includes measurement circuitry configured to measure electrical energy consumption by an apparatus that is connected to the power cord. The power cord also includes first transceiver circuitry configured to transmit data regarding the measured electrical energy consumption to second transceiver circuitry that is spaced apart from the power cord. Related hardwired apparatuses and methods are also provided.

Abstract: Provided are a refrigerator and a cloud server that diagnose a cause of an abnormal state. According to an embodiment of the present disclosure, an abnormal state diagnosis unit included in the refrigerator or the cloud server generates information on the abnormal state of the refrigerator based on similarity between stored first group of information and a normal pattern, and a cause diagnosis unit generates, when the abnormal state diagnosis determines that a state of the refrigerator is an abnormal stte, information on cause of the abnormal state based on similarity between stored second group of information and a defect pattern.

Abstract: A plurality of independent air conditioners, a first air conditioner (AC) (9a), a second AC (9b), and a third AC (9c), are disposed in an air conditioning room. Individual target temperatures of each habitable room that are acquired from an input/output terminal (19) and an outdoor temperature that is acquired by an outdoor temperature sensor (7) are input to a mode setter (32). Based on the individual target temperatures and the outdoor temperature, the mode setter (32) sets a cooling mode and a cooling setpoint temperature for operation in the cooling mode, or a heating mode and a heating setpoint temperature for operation in the heating mode, for each of the first AC (9a), the second AC (9b), and the third AC (9c).

Abstract: An air composition adjusting device includes: an oxygen separator that separates oxygen from external air to be supplied to a target space; a gas supply path including a high concentration gas supply path for oxygen through which the oxygen separator communicates with the target space; and a controller that performs an oxygen concentration raising operation of supplying a high oxygen concentration gas, which has a higher oxygen concentration than external air before being treated by the oxygen separator, to the target space through the high concentration gas supply path for oxygen.

Abstract: A refrigeration servicing system includes an apparatus and user equipment in electronic communication with the apparatus. The apparatus includes a body having a first end and a second end, wherein a passage extends within the body from the first end to the second end. A recess is formed within the body at the second end. The body comprises an inlet at the first end configured to directly engage with a portion of the refrigeration system, a conduit in fluid communication with the inlet, and a plunger. The conduit and plunger are each positioned in the passage. The apparatus also includes a housing at least partially positioned in the recess and in fluid communication with the conduit. The housing includes a sensor configured to directly contact the fluid and measure a parameter of the fluid. A method of servicing a refrigeration system is also provided.

Abstract: A method of operating a refrigerator appliance is provided. The refrigerator appliance includes a controller and a plurality of food storage compartments. The method includes identifying a food item, such as in response to a user input. The method also includes retrieving optimal or preferred storage conditions for the identified food item. The method may include modifying the conditions of a selected food storage compartment and/or providing instructions to modify the conditions of the selected food storage compartment.

Abstract: A refrigeration manager that can be used to monitor and control disparate refrigeration systems at a site, even when the refrigeration systems are manufactured by different vendors. The refrigeration manager provides common views for the disparate refrigeration systems, which may help a technician more easily monitor and control the various refrigeration systems at a site.

Abstract: An electrical testing device includes a housing having a base and a cover. The base and the cover define a cavity. The electrical testing device includes an input connector and a plurality of output connectors in electrical communication with the input connector. A fuse is in electrical communication with the input connector and the plurality of output connectors. The input connector and each output connector of the plurality of output connectors is adapted to connect to an interchangeable test lead. The input connector and each output connector of the plurality of output connectors is in electrical communication with an activation mechanism.

Abstract: Controlling heating and cooling in a conditioned space utilizes a fluid circulating in a thermally conductive structure in fluid connection with a hydronic-to-air heat exchanger and a ground heat exchanger. Air is moved past the hydronic-to-air heat exchanger, the air having fresh air supply and stale air exhaust. Sensors located throughout the conditioned space send data to a controller. User input to the controller sets the desired set point temperature and humidity. Based upon the set point temperature and humidity and sensor data, the controller sends signals to various devices to manipulate the flow of the fluid and the air in order to achieve the desired set point temperature and humidity in the conditioned space. The temperature of the fluid is kept less than the dew point at the hydronic-to-air heat exchanger and the temperature of the fluid is kept greater than the dew point at the thermally conductive structure.

Abstract: A system for monitoring a mobile refrigerant system including one or more system components is provided. The system includes a global positioning system, a performance monitor, and a processor. The global positioning system includes a receiver that provides a locator signal. The performance monitor provides a monitor signal indicative of operational performance of at least one of the system components of the refrigerant system. The processor is adapted to receive and combine the locator signal and the monitor signal, and produce a combined locator and monitor signal output.

Abstract: A thawing method for a thawing device includes: generating a radio frequency signal; acquiring the radio frequency signal; an upper electrode plate and a lower electrode plate of the thawing chamber generating, according to the radio frequency signal, radio frequency waves having a corresponding frequency in a thawing chamber and thawing an object to be processed, obtaining voltages and currents of the incident wave signal and reflected wave signal, and determining a thawing progress of the object to be processed.

Abstract: A collapsible, reusable shipping box has an initial flat configuration, a box configuration and a mailer configuration. In the mailer configuration, the mailer can be returned.

Abstract: Disclosed are various embodiments for determining whether food in a refrigerator has spoiled. In one embodiment, a refrigerator includes a compartment that has an interior space configured to contain a food item. A chemical sensor can be mounted within an interior of the refrigerator. The chemical sensor can be configured to at least measure an amount of a chemical related to spoilage of the food item in the compartment.

Abstract: A diagnosis method for identification or localization of errors in tempering devices for tempering of systems includes providing tempering devices each comprising one or more first sensors and one or more components for securing an operation of the systems with the tempering device, and one or more second sensors for measuring a state of the tempering device or ambient conditions around the tempering device, determining the tempering device to be checked with a diagnosis procedure, decoupling the tempering device from the system, connecting the tempering device to a defined consumer, and conducting the diagnosis procedure for the tempering device by using a diagnosis program, where the diagnosis program checks the components and the first and second sensors of the tempering device in a pre-determined sequence stored in the diagnosis program until the error in the tempering device is identified or localized.

Abstract: Systems and methods for estimating a replacement status of an air filter in an HVAC system, based on obtaining data correlated with the temperature of air outputted by the HVAC system as a function of time.

Abstract: A system and method for controlling a refrigeration system is disclosed. The system includes a cooled compartment, at least one heat source selectively activated to provide heat, at least one sensor, and a controller. The sensor detects a temperature and a relative humidity of ambient air that surrounds the cooled compartment. The controller is in communication with the at least one heat source and the at least one sensor. The controller includes logic for calculating a dew point temperature based on the temperature and the relative humidity. The controller also includes logic for selecting a region of operation based on at least one of the dew point temperature and the relative humidity, where the region of operation is representative of ambient conditions that surround the cooled compartment. The controller further includes logic for determining if the at least one heat source is activated based on the region of operation.

Abstract: A refrigerator includes a door, a front panel that defines an external appearance of the door and is formed of a metal, a front panel hole that is formed in the front panel, a cover display that is provided on a rear surface of the front panel, a cover protrusion that extends from the cover display to an inside of the front panel hole, a touch plate that is mounted on the cover protrusion, is exposed through the front panel hole, and is formed of a metal, and a capacitive touch sensor that is arranged on a rear side of the cover display and is connected to the touch plate such that a current flows between the touch sensor and the touch plate. The touch plate has a size that is smaller than a size of the front panel hole and is spaced apart from an inner peripheral surface of the front panel hole, and the cover protrusion is formed along an inner circumference of the front panel hole to divide a section between the touch plate and the front panel.

Abstract: Systems and method for operating and monitoring refrigerators are described. Temperature cycles within the compartment are characterized using statistical, frequency and pattern analysis techniques to derive a steady-state characteristic of temperature within the compartment. A thermal sensor inside the conditioned area is monitored and temperature data sets can be analyzed to determine performance in comparison to a baseline, and energy consumption. Analysis of continuous temperature readings taken from individual or groups of freezers identifies patterns of variations in temperature cycles from which feedback on efficiency can be inferred. Electrical load can be determined by measuring or estimating current usage and identifying periods of time when compressors are active in the refrigerator.

Abstract: A delivery system for delivering a delivery item to a vehicle includes a vehicle equipped with a cooling box which is provided with an openable door and configured to accommodate a delivery item, at least one deliverer terminal provided with a notification device for sending a notification to a deliverer, and a delivery server configured to communicate with the vehicle and the deliverer terminal. The delivery server sends to the deliverer terminal a notification indicating that the door is unclosed if the deliverer forgets to close the door.

Abstract: A method for operating a field testing device to detect an additive in a refrigerant and/or lubricant. The method includes mixing a reactive medium with the refrigerant and/or lubricant. The reactive medium is configured to react with any additive present in the lubricant and/or refrigerant to form a product that has a different color than the reactive medium. The method also includes determining the additive concentration of the lubricant and/or refrigerant by utilizing the color of the reaction mixture. The field operating device is portable such that the additive concentration may be determined while in the field.

Abstract: Methods and devices are provided for controlling an air conditioner in the technical field of smart home. The method includes that: a turning-on remote control signal sent by a smart socket is received, wherein the turning-on remote control signal is a signal generated and sent by the smart socket determining that an air conditioner is turned on, and the turning-on remote control signal contains an identifier of the smart socket. The smart socket may determine whether a rapid working mode of the air conditioner is enabled or not according to the identifier of the smart socket. When the rapid working mode of the air conditioner is enabled, a first remote control signal is sent to the smart socket, the first remote control signal being configured to instruct the smart socket to control the air conditioner to run with a working parameter of the rapid working mode.

Abstract: A system comprises a smart hybrid solar panel that employs a self-powered adaptive temperature control. Active temperature regulation may be implemented using a heat pump such as, and without limitations, thermoelectric (TE) cooling modules and a switching circuit with variable duty cycle that periodically diverts the photovoltaic solar cell's output to the heat pump. A smart software defined control system may algorithmically adjust the switching duty cycle to maximize the net power output of the panel based on a variety of sensory inputs and/or algorithms. The variety of sensory inputs may include weather forecast information, internal panel temperature, ambient air temperature, panel output voltage and current and humidity. The photovoltaic solar cells and heat pump may be mechanically integrated.

Abstract: A self-cleaning condensate drain pressure trap for air conditioning is defined here comprising; a modified pressure trap and assembly; a primary condensate flow path through the pressure trap assembly; a fluid reservoir which prevents the transmission of air through the pressure trap; a fluid pumping flow path from the upper pressure trap to the lower pressure trap reservoir; a fluid pump coupled to the fluid pumping path; a control board coupled to the fluid pump, connector cable and fluid sensor; an outer protective cover for the assembly. The control boards unclogging mode is actuated by wet sensor, monitoring mode by dry sensor. Unclogging mode suspends air conditioner operation, energizes the fluid pump to pump condensate into the reservoir, whereby reservoir clogs are broken down. Where a pressure trap clog causes a high accumulation of condensate, a broken-down clog allows accumulated condensate to flow through and flush it out.

Abstract: Devices, methods, and systems for determining the cause of a fault in a heating, ventilation, and air conditioning (HVAC) system are described herein. One device includes a memory, and a processor configured to execute executable instructions stored in the memory to receive operational data associated with an HVAC system, receive control logic associated with a controller of the HVAC system, determine a cause of a fault occurring in the HVAC system based, at least in part, on the operational data associated with the HVAC system and the control logic of the controller of the HVAC system, and provide the cause of the fault occurring in the HVAC system to a user.

Abstract: A method for testing a cooling component in a building HVAC system uses a state-based testing procedure. The method includes providing a control signal to the cooling component. The control signal instructs the cooling component to activate. The method includes monitoring feedback from a temperature sensor configured to measure temperature affected by the cooling component and evaluating a state transition condition by comparing the feedback from the temperature sensor to a threshold value. The state transition condition is satisfied if the feedback is less than the threshold value and not satisfied if the feedback is not less than the threshold value. The method includes transitioning into a pass state in response to the feedback from the temperature sensor satisfying the state transition condition and transitioning into a fail state in response to the feedback from the temperature sensor not satisfying the state transition condition.

Abstract: A controller of an indoor unit included in an air-conditioning system determines whether or not a communication error with the outdoor unit is an energization error that only occurs during an energization time in which electric power is fed from a commercial power supply to the outdoor unit. The controller can also determine whether or not the communication error is a connection establishment error that occurs at a time of establishing a connection with the outdoor unit. Based on determining the cause of the communication error with the outdoor unit, the controller can drive a fan by electric power fed from an emergency power supply.

Abstract: A method of operating a heat exchange system includes a heat exchanger including an outer boundary formed by inflow and outflow surfaces, a fan configured and arranged such that a transport fluid is transported through the heat exchanger over the inflow surface to the outflow surface and a control unit that receives one or more actual values from the heat exchanger and/or fan in the operating state and that one or more predetermined values of the heat exchanger and/or of the fan are adjusted by the control unit. The heat exchange system further includes a communication module in signal communication with the control unit, the communication module receiving one or more actual values from the control unit and/or one or more predetermined values transmitted from the communication module to the control unit, with the communication module being in signal communication with a communication unit at least at times.

Abstract: Apparatuses, methods, and systems for adjusting scale(s) of a refrigerant recovery system (RRS) are described. The RRS can determine pressure and weight measurements of content within a refrigerant storage tank. The RRS can determine weight measurements of content within oil storage containers. The RRS can compare the pressure and weight measurements to thresholds to determine whether the scale(s) require adjusting, whether the RRS should be locked to prevent further use of the RRS until after servicing of the RRS, or whether additional functions of an operating state of the RRS should be performed. The RRS can comprise a processor to automatically adjust the scales, determine the pressure and weight measurements, and compare pressure and weight measurements to the thresholds. Locking the RRS can prevent the RRS from recovering refrigerant from a cooling system, such as an air conditioning system in a vehicle.

Abstract: An interface system for a building includes at least one mobile computing device configured to read building information indicia positioned within the building, with the building information indicia defining indicia data. The at least one mobile computing device is in wireless communication with a building control system within the building. The building control system is configured to send control signals to a plurality of field devices within the building. The at least one mobile computing devices is configured to transmit indicia data defined by the building information indicia to the building control system. The building control system is configured to control the field devices based at least in part on the indicia data received from the mobile computing devices.

Abstract: The smart HVAC manifold system for servicing air conditioning systems is designed to dynamically manage the data acquisition process and to measure and calculate the performance indicators and output as the load conditions and or equipment operation change taking into account variables in the installation that can impact performance. Both visually and by a very specific data set the performance of the equipment and the installation can quickly be assessed and specific problems identified along with suggestions of typical faults or problems that may need addressed by the technician. The smart HVAC manifold system provides a means of quickly and electronically handling the manual data acquisition process which would include component and or system model and serial numbers, equipment location (GPS tagging), customer name, environmental conditions that effect performance and performance measurement (weather data and elevation), and supports photo, voice and text documentation.

Abstract: An air-conditioning system for the passenger compartment of a motor vehicle is provided, wherein the air conditioning system has at least one operator control unit and at least two air outlets. The operator control unit has a touch-sensitive strip. The air-conditioning system is configured to perform the following: separate control of the temperature of the air which flows out of the first air outlet and the temperature of the air which flows out of the second air outlet; determination of the temperature of the air for the first and the second air outlets independently of one another, and as a function of sensed contact with the strip.

Abstract: A system for measuring and recharging an air conditioning system includes a vent sensor configured to be coupled to an outlet vent of an air conditioning system. The vent sensor is configured to measure at least one parameter of an air flow from the outlet vent. A processor is in signal communication with the vent sensor. The processor is configured to receive the at least one parameter of the air flow and determine a current refrigerant level of the air conditioning system.

Abstract: An air conditioning apparatus includes a refrigerant circuit in which a compressor for compressing heat source-side refrigerant, a first refrigerant channel switching device, a heat source side heat exchanger, an expansion device, and intermediate heat exchangers for performing heat exchange between the heat source-side refrigerant and a heat medium different from the heat source-side refrigerant are connected by pipes. Also, the air conditioning apparatus includes a heat medium circuit in which pumps for circulating the heat medium to be used for the heat exchange performed by the intermediate heat exchangers, a use-side heat exchanger, and channel switching devices for switching passages of the heat medium heated or cooled to the use-side heat exchanger are connected by pipes.

Abstract: Disclosed are various embodiments for determining whether food in a refrigerator has spoiled. An application executing on a computing device receives an identification of a food item located in a compartment of the refrigerator. The application then receives a chemical sensor reading from the refrigerator, wherein the chemical sensor reading represents a measured amount of a chemical associated with spoilage of the food item. Subsequently, the application determines that the measured amount of the chemical associated with spoilage of the food item exceeds a threshold amount of the chemical associated with spoilage of the food item. Finally, the application sends a notification to the client device, the notification comprising an indication that the food item is spoiled.

Abstract: A system includes a refrigerant circuit including a compressor, a condenser, an expander, an electric motor configured to drive the compressor, and a controller configured to control a motor drive to drive the electric motor. The controller is configured to first evaluate whether the compressor is idle based upon a control state of the controller being configured not to operate the motor drive to drive the motor, second, in response to an affirmative evaluation that the compressor is idle, evaluate a risk of undesired or un-commanded compressor rotation based upon a combination of two or more system conditions, each of the two or more system conditions indicating the risk of undesired or un-commanded compressor rotation, and third, in response to an affirmative evaluation of the risk of undesired or un-commanded compressor rotation, control the motor drive to oppose rotation of the compressor.

Abstract: A monitoring system for a heating, ventilation, and air conditioning (HVAC) system of a residence includes a monitoring device installed at the residence and a server located remotely from the residence. The monitoring device measures an aggregate current supplied to a plurality of components of the HVAC system and transmits current data based on the measured aggregate current. The server receives the transmitted current data and, based on the received current, assesses whether a failure has occurred in a first component of the plurality of components of the HVAC system and assesses whether a failure has occurred in a second component of the plurality of components of the HVAC system.

Abstract: A personal food inventory system (PFIS) allows for storage of food items in a personal inventory associated with a user account, as well as tracking of food items consumed by the user account. The PFIS is linked to an application for communicating between an account user and the PFIS items that are received into the personal inventory and items consumed or otherwise removed from the personal inventory. The PFIS is linked to one or more preferred vendors for easy entry of items into the personal inventory. The PFIS also provides recommendation of dishes the account user can prepare based on the personal food inventory and/or a vendor inventory associated with the preferred vendor. The PFIS further provides user notifications for items nearing their expiry date. The PFIS also provides notification to the account user regarding usage of the personal food inventory system by tracking consumption.

Abstract: A remote control system (100) includes a home appliance (10) and a relay device (20, 30) for relaying transmission of an operation instruction for controlling the home appliance (10). The home appliance (10) includes a first detector for detecting a communication interruption on a first communication line (41, 42) for transmission of the operation instruction from the relay device (20, 30) to the home appliance (10), a receiver for receiving, from the relay device, an interruption signal indicating a communication interruption on a second communication line (42, 43) for transmitting the operation instruction from a communication device to the relay device (20, 30), and a state changer for changing a state of the home appliance in accordance with a duration of at least one of the communication interruption detected by the first detector or the communication interruption indicated by the interruption signal.

Abstract: A refrigeration apparatus includes a primary circuit with a first expansion valve, a bypass circuit extending between branching and joining portions on the refrigerant primary circuit, a heat exchanger, a second expansion valve disposed upstream of the heat exchanger in the bypass circuit, first and second refrigerant flow rate calculating components, and a determining component. The primary circuit also includes a compressor, radiator, and evaporator. The heat exchanger includes first and second refrigerant flow paths disposed on the primary and bypass circuits, respectively, to cause heat between refrigerant flowing in the paths. The first and second refrigerant flow rate calculating components calculate first and second flow rates of refrigerant flowing through the bypass circuit based on refrigeration cycle theory and fluid theory, respectively.

Abstract: An air-conditioning apparatus and an air-conditioning system including a first unit including a compressor and a first heat exchanger, and a plurality of second units that each include a second heat exchanger. Each of the plurality of second units connect to the first unit via a plurality of branched pipes and a plurality of valves. The air-conditioning apparatus and air-conditioning system also include a storage unit that stores connection information indicating a relationship of connection between the plurality of second units and the plurality of branched pipes, and a control unit that detects whether the connection information includes a closed path pipe.

Abstract: The present disclosure is directed to a single compressor HVAC system with hot gas reheat. The system includes a single compressor, a pair of condensers, a reheat heat exchanger, an evaporator, and an expansion device. Within the system, the refrigerant exiting the compressor is separated into two portions. In the cooling mode, the first and second portions of the refrigerant are directed from the compressor through the two condensers in parallel. In the reheat mode, the first portion of the refrigerant is directed through the first condenser, while the second portion of the refrigerant is directed through the reheat heat exchanger. The system also may include a head pressure control device that is designed to maintain the compressor discharge pressure within a desired range by adjusting the condenser fan speed.

Abstract: An object is to enable the dealer or user of an air conditioning apparatus to recognize that the heat dissipation amount of a heat exchange device is less than the heat dissipation amount expected of the air conditioning apparatus. A control device detects a hot water outflow temperature being a temperature of a fluid heated by a heat pump device, and a return temperature being a temperature of the fluid before being heated by the heat pump device, and checks whether or not a temperature difference between the detected hot water outflow temperature and the detected return temperature is smaller than a predetermined first value. If the control device judges that the temperature difference is smaller than the first value, it displays insufficiency of the heat dissipation amount of a heat exchange device, on a display of a remote controller.

Abstract: A system and method are provided for implementing an automated bidding process in which a preliminary system-generated diagnosis (pre-diagnosis) of a heating, ventilation and air conditioning (HVAC) system difficulty may be generated and forwarded to a plurality of available or pre-selected HVAC repair facilities or contractors for soliciting and receiving competitive bidding for repair services from those HVAC repair facilities or contractors. A system-based automated solution is provided to lessen the burden on building owners or operators in soliciting “knowledge-based” bids for undertaking repairs to correct HVAC system issues raised in an automatically-generated HVAC system pre-diagnosis. An automated platform and/or scheme allow a plurality of HAVC contractors to offer bids for the repair services based on a pre-diagnosis forwarded to the plurality of contractors as part of a bid solicitation process for the repairs.

Abstract: A system includes an inlet line configured to receive a medium flowing from a low-pressure location of an engine to a chamber, a plurality of heat exchangers configured to receive the medium from the inlet line, and a valve located upstream from the plurality of heat exchangers. The valve is configured to divide in parallel the medium across at least a first heat exchanger and a second heat exchanger of the plurality of heat exchangers. A recirculation air system is configured to supply a recirculation.

Abstract: A group of unsupervised detectors or control units in wireless communication with a user can be upgraded for the user with the addition of hardware and/or downloadable software to provide communications and information to a supervisory station. Supervisory station services can be implemented locally or via cloud based computer services. A displaced dealer can be contacted using codes carried by the detectors or the control units for installation or activation of additional services.

Abstract: Techniques for automatically and efficiently controlling air conditioning units (ACUs) in a data center are provided. In one aspect, a method for controlling ACUs in a data center is provided. The method includes the following steps. It is identified which of the ACUs in the data center comprise base ACUs and which of the ACUs in the data center comprise redundant ACUs. Output from one or more of the redundant ACUs is increased in response to one or more control events. Output from the redundant ACUs is decreased once a predetermined period of time has elapsed without a new control event occurring.