A system and computer program product are provided for controlling liquid-cooled electronics, which includes measuring a first set point temperature, T.sub.a, wherein the T.sub.a is based on a dew point temperature, T.sub.dp of a computer room. A second set point temperature, T.sub.b, is measured, wherein the T.sub.b is based on a facility chilled liquid inlet temperature, T.sub.ci, and a rack power, P.sub.rack, of an electronics rack. A Modular Cooling Unit (MCU) set point temperature, T.sub.sp, is selected. The T.sub.sp is the higher value of said T.sub.a and said T.sub.b. Responsive to the selected T.sub.sp, a control valve is regulated. The control valve controls a flow of liquid that passes through a heat exchanger.

An HVAC controller, such as a thermostat, may be configured to allow a user to set and/or select schedule time period in which one or more indoor quality units (e.g. humidification, dehumidification, ventilation, etc.) will or will not operate, and/or will operated but using different settings. In some cases, the schedule time periods available for selection may correspond to the time periods of a programmable temperature schedule of the HVAC controller, but this is not required. In some instances, the HVAC controller may allow a user to select which indoor air quality units will or will not operate, and/or what settings the indoor air quality units will operate, during a user's vacation.

A wear estimation system for a component of a machine includes a geolocation unit, a non-transitory computer-readable medium bearing a component wear estimate program, a controller, and an interface device. The geolocation unit is configured to generate a location signal indicative of a location of the machine. The controller is in operable communication with the geolocation unit to receive the location signal therefrom and is configured to execute the component wear estimate program. The interface device is configured to display a graphical user interface of the component wear estimate program. The component wear estimate program is configured to determine an estimated part life for the component based upon an environmental characteristic of the location; to track an actual usage amount for the component; and to indicate, through the graphical user interface, when the usage amount of the component exceeds a threshold percentage of the estimated part life.

The present invention includes a control unit, a first wireless transmitting module is coupled to the control unit. A second wireless transmitting module is coupled to the control unit, a display having a first electrode formed on a first substrate, a second electrode formed on a second substrate, at least three color elements formed between the first electrode and the second electrode, each the at least three color elements are formed with emitting substances, wherein a bias is applied to excite the emitting substances by combination of an electron and a hole; a display status memory coupled to the display to store displaying status.

A thermostat for controlling an HVAC system is described, the thermostat having a user interface that is visually pleasing, approachable, and easy to use while also providing ready access to, and intuitive navigation within, a menuing system capable of receiving a variety of different types of user settings and/or control parameters. For some embodiments, the thermostat comprises a housing, a ring-shaped user-interface component configured to track a rotational input motion of a user, a processing system configured to identify a setpoint temperature value based on the tracked rotational input motion, and an electronic display coupled to the processing system. An interactive thermostat menuing system is accessible to the user by an inward pressing of the ring-shaped user interface component. User navigation within the interactive thermostat menuing system is achievable by virtue of respective rotational input motions and inward pressings of the ring-shaped user interface component.

The invention relates to a method for controlling a temperature distribution in a heat exchanger, in which an actual temperature distribution in the heat exchanger is measured by means of at least one optical waveguide arranged in the heat exchanger, in particular in the form of a glass fiber, light being launched into the optical waveguide and light that is scattered in the optical waveguide being evaluated for determining the actual temperature distribution, and at least one flow of a fluid medium that is carried in the heat exchanger being controlled in such a way that the actual temperature distribution is made to approximate a pre-defined target temperature distribution. The invention also relates to a device for carrying out a method for controlling a temperature distribution in a heat exchanger.

A control method of the present disclosure causes a computer of an information apparatus to: display a display screen representing a floor plan for one floor including rooms on the display; display device icons representing target devices within regions of the respective rooms included in the floor plan, the device icons being initially displayed at positions within the regions of the respective rooms; and output to a network a first control command, when selection of an illumination icon, representing an illumination device among the target devices, is sensed within a region of any of the rooms included in the floor plan, and when selection of any region within a room, in which selection of the illumination icon is sensed, is sensed, the first control command controlling on/off of power for an illumination device corresponding to the room in which selection of the illumination icon is sensed.

A heat-pump circuit may include an indoor heat exchanger, an outdoor heat exchanger, a compressor adapted to circulate a working fluid between the indoor and outdoor heat exchangers, and an expansion device disposed between the indoor and outdoor heat exchangers. A monitor for the heat-pump system may include a return-air temperature sensor, a supply-air temperature sensor, and a processor. The return-air temperature sensor may be adapted to measure a first air temperature of air upstream of the indoor heat exchanger. The supply-air temperature sensor may be adapted to measure a second air temperature of air downstream of the indoor heat exchanger. The processor may be in communication with the return-air temperature sensor and the supply-air temperature sensor. The processor may be programmed to determine a working-fluid-charge condition of the heat-pump system based on the first and second air temperatures.

An electronic thermostat control system may include a control duty determination portion outputting PWM duty signal for controlling the coolant temperature according to a coolant temperature, a rising rate of the coolant temperature, an engine speed, a load and a vehicle speed, a driving portion applying a time condition to the PWM duty signal output by the control duty determination portion for controlling outputting interval, and a fault diagnosis portion diagnosing operations of the electronic thermostat by analyzing the signals output by the driving portion and changes of the coolant temperature.

The invention relates to a method for cooling a tool in a heat treatment furnace, wherein: the tool is supplied during normal cooling operation with coolant from a coolant reservoir through a supply inlet (1), which coolant is returned into the coolant reservoir from the tool via a return flow (2); the supply inlet (1) is coupled by means of an electric actuator (3) alternatively to the coolant reservoir or to the public water supply and the return flow (2) is coupled by means of a further electric actuator (3) alternatively to the coolant reservoir or to the public waste water system (4); the actuators (3, 3′) are supplied with a feed current during normal cooling operation and held in a first position in which coolant is supplied to the tool through the supply inlet (5) from the coolant reservoir and the coolant is fed back through the return flow (2, 6) into the coolant reservoir; and, upon interruption in the power supply, the actuators (3, 3′) are forced into an emergency position in which cold water is supplied to the tool through the supply inlet (7) from the public water supply and the water is discharged through the return flow (2, 8) into the public waste water system (4).