Patent application number | Description | Published |
20090171862 | ENERGY CONTROL SYSTEM - A method for adjusting an economic balance point in a dual fuel HVAC system includes a furnace, a heat pump and a control system. The method comprises providing a control device having a preprogrammed algorithm for controlling the HVAC system, providing a communication path between the control device and at least one component of the HVAC system, and accessing current fuel cost data; determining an economic balance point temperature based on the current fuel cost data; and updating the economic balance point temperature in the preprogrammed algorithm to adjust an actual balance point of the HVAC system. | 07-02-2009 |
20090266092 | APPARATUS TO SENSE AND CONTROL COMPRESSOR OPERATION IN AN HVAC SYSTEM - An HVAC system and method for configuring a controller to control a compressor including a detection system provided to determine a type of compressor. The detection system includes a processor; and a load sensing circuit connected between the processor and a controller. The controller has a plurality of output connections connectable to a compressor. The load sensing circuit senses whether a load is present on each output connection of the plurality of output connections and provides a load signal to the processor indicating whether a load is present on each output connection. The load signals are processed with the processor to determine the type of compressor is present. The controller is configured to control the compressor in response to the determined type of compressor. | 10-29-2009 |
20100070085 | AIRFLOW ADJUSTMENT USER INTERFACES - Controllers for controlling heating, ventilating, air conditioning, and cooling (HVAC) systems are provided. The controllers include graphical user interfaces for user adjustment of system settings. The graphical user interfaces also may be designed to present information that facilitates user understanding of system operations. In certain embodiments, the controllers may allow users to adjust airflow values within a wide range of values. In these embodiments, the graphical user interfaces may include slide bars for adjusting the airflow values. | 03-18-2010 |
20100070086 | INDOOR AIR QUALITY CONTROLLERS AND USER INTERFACES - Controllers for controlling heating, ventilating, air conditioning, and cooling (HVAC) systems are provided. The controllers include graphical user interfaces for user adjustment of system settings. The controllers also include communication interfaces for receiving climate data. In certain embodiments, the controllers govern operation of the HVAC systems based at least in part on the climate data. Further, the controllers may display information and alerts related to the climate data. The controllers also may govern operation of air treatment devices within the HVAC systems. | 03-18-2010 |
20100070089 | HVAC CONTROLLER USER INTERFACES - Controllers for controlling heating, ventilating, air conditioning, and cooling (HVAC) systems are provided. The controllers include graphical user interfaces for user adjustment of system settings. In certain embodiments, the graphical user interfaces may include slide bars for adjusting temperature set points. In certain embodiments, the graphical user interfaces may include selectable calendars for adjusting program schedules for the HVAC systems. In certain embodiments, the graphical user interfaces may include screens for adjusting a nightlight feature of the controller. | 03-18-2010 |
20100070093 | TRANSITION TEMPERATURE ADJUSTMENT USER INTERFACES - Controllers for controlling heating, ventilating, air conditioning, and cooling (HVAC) systems are provided. The controllers include graphical user interfaces for user adjustment of system settings. The graphical user interfaces also may be designed to present information that facilitates user understanding of system operations. In certain embodiments, the controllers may allow users to adjust balance point and/or LTCO temperature values. In these embodiments, the graphical user interfaces may include slide bars for adjusting the balance point and/or LTCO temperature values. | 03-18-2010 |
20100070907 | SYSTEM STATUS USER INTERFACES - Controllers for controlling heating, ventilating, air conditioning, and cooling (HVAC) systems are provided. The controllers include graphical user interfaces for user adjustment of system settings. The graphical user interfaces also may be designed to present information that facilitates user understanding of system operations. In certain embodiments, the graphical user interfaces may display virtual representations of HVAC systems with graphical elements representing units and/or operating status of the HVAC systems. | 03-18-2010 |
20100251742 | HVAC&R SYSTEM VALVING - An HVAC&R system is disclosed that utilizes energy-efficient valving. The valving controls the flow of refrigerant and may be adapted for evaporator or condenser applications, on both AC systems and heat pumps (as well as chillers and other refrigeration systems). The valving may provide simultaneous and individualized control of flow through individual coils or groups of coils for improved control of evaporation, condensation, defrosting and so forth. In some configurations a common sensor may be shared between individual coils or groups of coils and may provide sensed parameters to control circuitry for controlling the valving. Other configurations may include bypass valving to direct fluid around the flow control valving. In yet other configurations, a valve may be used to bypass tapped vapor around a heat exchanger functioning as an evaporator. | 10-07-2010 |
20120253523 | INDOOR AIR QUALITY CONTROLLERS AND USER INTERFACES - Controllers for controlling heating, ventilating, air conditioning, and cooling (HVAC) systems are provided. The controllers include graphical user interfaces for user adjustment of system settings. The controllers also include communication interfaces for receiving climate data. In certain embodiments, the controllers govern operation of the HVAC systems based at least in part on the climate data. Further, the controllers may display information and alerts related to the climate data. The controllers also may govern operation of air treatment devices within the HVAC systems. | 10-04-2012 |
20120310418 | HVAC CONTROLLER USER INTERFACES - Controllers for controlling heating, ventilating, air conditioning, and cooling (HVAC) systems are provided. The controllers include graphical user interfaces for user adjustment of system settings. In certain embodiments, the graphical user interfaces may include slide bars for adjusting temperature set points. In certain embodiments, the graphical user interfaces may include selectable calendars for adjusting program schedules for the HVAC systems. In certain embodiments, the graphical user interfaces may include screens for adjusting a nightlight feature of the controller. | 12-06-2012 |
20130066472 | TRANSITION TEMPERATURE ADJUSTMENT USER INTERFACES - Controllers for controlling heating, ventilating, air conditioning, and cooling (HVAC) systems are provided. The controllers include graphical user interfaces for user adjustment of system settings. The graphical user interfaces also may be designed to present information that facilitates user understanding of system operations. In certain embodiments, the controllers may allow users to adjust balance point and/or LTCO temperature values. In these embodiments, the graphical user interfaces may include slide bars for adjusting the balance point and/or LTCO temperature values. | 03-14-2013 |