摘要:
A control system for managing a heating, ventilating and air conditioning (HVAC) system based on occupancy of an area is provided. The occupancy may be determined by anticipated programming based on time of day zoning, and/or by actual sensed occupancy. In the later, the control system includes an occupancy sensor that communicates with a programmable thermostat. The occupancy sensor is disposed in the area and senses a state of occupancy of the area. The programmable thermostat instructs the HVAC system to adjust the temperature of the area within the structure based on the state of occupancy of that particular area to enhance occupant comfort and energy efficiency. The thermostat may also include programming modes or scripts that may be run to adjust operational control when abnormal occupancy conditions are sensed. Controllable dampers may also be used by the thermostat to achieve micro zoning control of the HVAC system.
摘要:
An HVAC system comprises a programmable wireless thermostat and a remote receiver unit. The thermostat includes a user interface having one or more displays, user input devices, such as buttons, sliders, or a touch screen, and a backlight. The thermostat may include a proximity sensor, wherein the user interface is controlled based on a user's presence near the thermostat. A thermostat controller enters into a reduced energy consumption mode and switches the user interface to an idle state when the proximity sensor indicates a lack of user proximity for a predetermined duration. When the proximity sensor indicates user proximity, the controller exits the reduced energy consumption mode and switches the user interface to an active state. During the reduced energy consumption mode, the user interface may be concealed when the user interface is in a housing which is transparent when backlit but is opaque otherwise.
摘要:
A thermostat having a terminal connection mechanism and method that provides ease of installation of the thermostat and the heating, ventilating and air conditioning (HVAC) wiring is provided. One embodiment allows any wire to be attached to any terminal. This thermostat includes logic for determining an identity of the wire connected to an HVAC system component. The control logic determines a characteristic of the HVAC system component and compares the characteristic to a known characteristic of the HVAC system component. Environmental responses may also be monitored to identify the HVAC component. The terminal of the thermostat may be color coded to further ease installation. Tool-less terminal connectors may also be used to still further ease installation.
摘要:
A thermostat permitting a user to easily access the most commonly used thermostat settings is provided. The thermostat includes a user interface display and a single menu or favorites (FAV) button. A top level menu is displayed on the user interface display when the FAV button is depressed. The top level menu includes a listing of the most commonly used thermostat settings on a single screen. As such, the thermostat user is permitted to easily select one of the commonly used thermostat settings without having to navigate through various different menus or screens. The thermostat also includes a digital version of the user's manual stored therein. This manual may be displayed on the user interface screen. A link to the manual may be provided on the single screen along with the listing of the most commonly used thermostat settings.
摘要:
The water formulation is a composition of water for brewing such beverages as coffee and tea, for preparing beverages from syrup or concentrate mixed with water, for enhancing carbonated water, and that forms a potable mineral water. The water formulation provides water having Total Dissolved Solids (TDS) of about 150 parts per million (ppm) and about grains of hardness. The TDS include about 6.10 ppm sodium ion (Na+); about 13.00 ppm potassium ion (K+); about 34.00 ppm calcium ion (Ca+2); about 36.54 ppm bicarbonate ion (HCO3−); and about 60.34 ppm chloride ion (Cl−). The water formulation enhances the extraction of components beneficial to, and inhibits the extraction of components detrimental to, the body, acidity, aroma, and taste of brewed beverages and soft drinks while reducing scaling, corrosion, and damage to equipment.