Matches 1 - 48 out of 48


Match Document Document Title
US20140070014 WARM WEATHER BOILER SHUTDOWN  
The present disclosure relates to an apparatus for automatically shutting down a boiler system when it is not needed (e.g., during warm weather) based upon calls for heat output by a temperature...
US20100006662 AIR CONDITIONING CONTROL SYSTEM, SUPPLY AIR SWITCHING CONTROLLER FOR USE IN THE AIR CONDITIONING CONTROL SYSTEM, AND AIR CONDITIONING CONTROL METHOD  
An air conditioning control system allows a supply air switching controller to alternately switch outside air control and return air control at a preset switching interval. The supply air...
US20090026280 REGULATION CONTROL SYSTEM OF AIR CONDITIONING EQUIPMENT  
A regulation control system of air conditioning equipment is provided according to the present invention; the regulation control system mainly interconnects an entrance guarding device and/or a...
US20090001179 Energy Efficient House Ventilation  
A method and apparatus for maintaining an acceptable level of outside air exchange rate in a structure. The natural ventilation rate is determined as a function of the outdoor air temperature, and...
US20150053782 ELECTRONIC THERMOSTAT  
Provided are apparatus, including electronic thermostats, for detecting temperatures and elapsed times and, in response to those temperatures and elapsed times, controlling the opening or closing...
US20080277488 Method for Controlling HVAC Systems  
The herein method for adjusting the source activation time of a heating or cooling source is based upon variation in temperature sensor or thermostatic means activity within a controlled...
US20130043318 CONTROLLERS FOR HEAT SUPPLY UNITS  
The present invention relates to an electronic controller for a boiler. The controller includes a control circuit that is adapted to provide a sequence of control signals to periodically turn the...
US20120048955 THERMOSTAT  
A thermostat (10) includes a housing (11) having a control panel (13) with a plurality of manually selectable input elements or input keys (15) and a display panel (17) for displaying various...
US20100308120 Programmable Thermostat  
A thermostat for a climate control system includes an electronic memory in which at least three occupancy settings are stored. The occupancy settings including a pre-defined unoccupied temperature...
US20090001180 THERMOSTAT WITH UTILITY MESSAGING  
The present disclosure pertains generally to thermostats that are adapted to assist utilities in communicating with its customers. In particular, the present disclosure relates to a thermostat...
US20070210177 Programmable thermostat  
A system and method for programming a thermostat is described. One embodiment includes a method for communicating a thermostat operation schedule to a media device that then communicates the...
US20060032932 Thermostatic outlet adapter  
An electrical outlet adapter has a thermostat, a plug to allow connection to a standard electrical outlet, an outlet to accept a standard electrical plug, and a switch controlled by the thermostat...
US20100078494 HUMIDITY-ACTIVATED VENTILATION SYSTEM SWITCH  
A humidity-activated switch comprising a humidity sensor and a microcontroller, wherein the switch may be automatically activated and/or deactivated in response to detected ambient humidity.
US20090032605 FAN COIL THERMOSTAT WITH ACTIVITY SENSING  
Fan coil thermostats can provide energy savings by, for example, not unnecessarily heating and/or cooling an unoccupied room or other space. Fan coil systems employing such a fan coil thermostat...
US20110132991 THERMOSTAT  
A thermostat (10) includes a housing (11) having a control panel (13) with a plurality of manually selectable input elements or input keys (15) and a display panel (17) for displaying various...
US20090001181 THERMOSTAT WITH USAGE HISTORY  
The present disclosure pertains to thermostats that assist users in monitoring and/or controlling their utility consumption habits and patterns. In particular, the present disclosure relates to a...
US20090076658 BUILDING CLIMATE CONTROL SYSTEM AND METHOD  
The climate in a primary space within a building having a secondary space open to and above the primary space is controlled by creating a primary microclimate within the primary space that is...
US20100025484 Fuel Economizer  
An electronic circuit for a hot water heating system conserves fuel consumption and reduces carbon dioxide emissions. A heating system includes a burner that heats water and a room thermostat. The...
US20080191045 Self-programmable thermostat  
A hybrid manual/programmable thermostat for a furnace or air conditioner offers the simplicity of a manual thermostat while providing the convenience and versatility of a programmable one....
US20090032236 FAN COIL THERMOSTAT WITH AUTOMATIC FAN RESET  
Fan coil thermostats can provide energy savings by, for example, not unnecessarily running a fan for longer than necessary or at a higher speed than necessary. Fan coil systems employing such a...
US20110132990 THERMOSTAT  
A thermostat (10) includes a housing (11) having a control panel (13) with a plurality of manually selectable input elements or input keys (15) and a display panel (17) for displaying various...
US20150060038 HVAC FAN CONTROLLER  
An integrated efficient fan controller circuit device for controlling a fan of a heating, ventilating and air conditioning (HVAC) system, comprising an input-output port, a voltage regulator, a...
US20060065751 Method for locking a wake-up signal  
A method for locking a control device, the control device to be wakened by a wake-up signal, in which the wake-up signal is blocked by an excess-temperature circuit.
US20050189429 THERMOSTAT AND METHOD FOR ADAPTIVELY PROVIDING A CHANGEOVER BETWEEN HEAT AND COOL  
A thermostat (800) operates continuously in a current mode (304) that is one of a heating mode and a cooling mode, and completes (520, 610) a demand for one of heating and cooling in accordance...
US20060196953 Multiple thermostat installation  
At least first and second thermostats may be operably coupled to one another and are capable of sharing their target temperatures and their temperature signals. The first thermostat may provide a...
US20100019051 Override Of Nonoccupancy Status In a Thermostat Device Based Upon Analysis Of Recent Patterns Of Occupancy  
A thermostat system with a thermostat control program is disclosed for controlling a Heating Ventilation and/or Air Conditioning (HVAC) system which incorporates a mechanism for detecting activity...
US20090140065 HVAC CONTROLLER WITH SAVE A WIRE TERMINAL  
A HVAC controller for controlling the comfort level of at least a portion of a building is described. In one illustrative embodiment, an HVAC controller for controlling the comfort level of at...
US20090001182 THERMOSTAT WITH FIXED SEGMENT DISPLAY HAVING BOTH FIXED SEGMENT ICONS AND A VARIABLE TEXT DISPLAY CAPACITY  
The disclosure pertains to thermostats having an improved interface. In some cases, the present disclosure relates to thermostats that can display not only menu items, temperature set points and...
US20050279842 Keldosimeter - system and method for automatically maintaining comfortable minimally variable temperatures in structural and vehicular interiors indicating easy cool weather diesel engine starts  
The Keldosimeter is a method and apparatus for automatically maintaining a desired comfortable temperature level in the interior of structures and vehicles and includes delivering a second fan rpm...
US20090242652 Power saving compressor and control logic  
An air conditioner control method may entail measuring an evaporator first temperature at an exit side of the evaporator, maintaining the evaporator first temperature, measuring a length of time...
US20070194139 Setback control for temperature controlled system  
A program or subprogram in a processor, thermostat or computer that directs a temperature control system either contains or is programmable to contain an approximation that is applied to a...
US20070045444 Thermostat including set point number line  
A thermostat temperature programming display system for a digital thermostat that provides a graphical illustration of the relationship between the heating, cooling, and ambient temperatures is...
US20090014548 CONDENSATION PREVENTION SYSTEM AND METHODS OF USE  
A method of preventing condensation on equipment inside a temperature-controlled enclosure comprises measuring the temperature in at least one location inside the enclosure. The temperature inside...
US20090048719 Environmental Temperature Control System  
An environmental temperature control system comprises one or more thermostats (10). The or each thermostat is integrated into an electronic control circuit having an external temperature sensor...
US20100125369 System and Method for Defrost of an HVAC System  
A system and a method are provided for monitoring a condition and selectively executing a certification defrost algorithm for a heating, ventilation, and air conditioning (HVAC) system in response...
US20140291410 SENSOR TEMPERATURE CONTROL APPARATUS  
A sensor temperature control apparatus (1) includes switching device (51); energization control means S1 and S2 for controlling duty ratio DT to maintain sensor element section (3) at a target...
US20050098639 Temperature control system  
The invention involves a system for the control of the temperature of a medium within a space by utilizing a temperature-modifying device. It may include a programmable controller connected for...
US20080099570 SYSTEM AND METHOD FOR ESTIMATING TEMPERATURE DRIFT AND DRIVE CURVES  
A method for estimating temperature drift and drive curves comprises the steps of: (1) obtaining a plurality of temperature data samples over a period of time, the period of time corresponding to...
US20120067561 REMOTE CONTROL OF AN HVAC SYSTEM THAT USES A COMMON TEMPERATURE SETPOINT FOR BOTH HEAT AND COOL MODES  
An HVAC system includes an HVAC unit having a cooling mode and a heating mode for conditioning the air in an inside space, and a programmable thermostat located remotely from the HVAC unit. The...
US20060065750 Measurement, scheduling and reporting system for energy consuming equipment  
Disclosed are embodiments of an HVAC control system that automatically and periodically monitors potentially large amounts of HVAC data in real time, controls the HVAC system in response to the...
US20090216379 METHOD OF CONTROLLING THE OPERATION OF AN ELECTRONIC DEVICE  
A method of operating an electronic system includes determining first and second temperature signals with a thermostat processor. The first and second temperature signals are provided by a...
US20110006124 TEMPERATURE CONTROL METHOD, TEMPERATURE CONTROL APPARATUS, AND OPTICAL DEVICE  
A temperature control apparatus controlling the temperature of an optical element that is driven in response to a drive current that is applied, the temperature control apparatus including: a...
US20130043319 ARRANGEMENT AND METHOD FOR AUTOMATICALLY DETERMINED TIME CONSTANT FOR A CONTROL DEVICE  
A method includes a step of obtaining in a processing circuit a sequence of elements between a first device and a supply air temperature sensor of an air handling unit. The processing circuit also...
US20100125368 System and Method for Sump Heater Control in an HVAC System  
A system and a method are provided for powering up a heating, ventilation, and air conditioning (HVAC) system and operating a sump heater for a compressor for a first predetermined period of time...
US20140034741 METHOD AND SYSTEM FOR REGULATING ENGINE TEMPERATURE  
A system and method for operating a device at a desired temperature is described. In one example, current supplied to a heater that melts a wax medium or material controlling flow through a valve...
US20100206957 SYSTEM AND METHOD FOR VEHICLE TEMPERATURE CONTROL  
A vehicle includes a power connector configured to mate with an electrical power grid receptacle and receive a grid power therefrom and a heating and cooling system electrically connected to the...
US20160187898 Compensating for Sensor Thermal Lag  
Exemplary embodiments are disclosed of a method of compensating for thermal lag in a temperature control system. In an exemplary embodiment, a method is performed by a controller of the...
US20160076785 TAMPER PROOF THERMOSTAT THAT LIMITS TEMPERATURE CONTROLS  
A thermostat includes: a controller adapted to control the function of an associated HVAC system; and user controls adapted to provide instructions to the controller including selecting between...

Matches 1 - 48 out of 48