摘要:
An HVAC controller that monitors the performance of an HVAC system during its operating by comparing a monitored parameter value (e.g. delta T) to a pre-determined limit stored in the HVAC controller memory in order to determine if a performance limit has been violated. In some cases, the HVAC controller may display on a display of the HVAC controller a user alert for at least some of the detected violations. In some instances, the HVAC controller may display or otherwise provide a user alert only after a pre-determined number of performance violations are detected by the HVAC controller. Alternatively, or in addition, the HVAC controller may accept one or more conditions that indicate when a user alert for a detected violation is not to be displayed on the display of the HVAC controller.
摘要:
An HVAC controller that monitors a current performance level of an HVAC system, and determines if the current performance level falls below a minimum performance threshold level for at least a first predetermined amount of time. The HVAC controller may be configured it display an alert on the display of the HVAC controller if the HVAC controller determines that the current performance level has fallen below the minimum performance threshold level for at least the first period of time. In some cases, the HVAC controller may remove the alert from the display of the HVAC controller if the current performance level subsequently rises and remains above the minimum performance threshold level for at least a second predetermined amount of time. In some cases, the first predetermined amount of time may include a utility shutoff period component and/or a defrost cycle period component.
摘要:
An HVAC controller may include a user activated performance test for monitoring the performance of a connected HVAC system. In some cases, the user activated tests may cause the HVAC controller to operate the HVAC system and identify a current delta T of the HVAC system. In some cases, the identified current delta T may be displayed on a display of the HVAC controller for viewing and/or evaluation by the user. In some cases, a delta T limit may be accepted from the user through the user interface of the HVAC controller. In some cases, a minimum run time may also be received via the user interface of the HVAC controller. The delta T limit and/or the minimum run time may be based, at least in part, on the current delta T identified by the user activated performance test.
摘要:
An HVAC remote controller for use in an HVAC system is described. In some instances, the HVAC remote controller may include a wireless interface for communicating with one or more HVAC controllers and/or other HVAC devices. The HVAC remote controller may be configured to automatically determine whether the HVAC system is a zoned HVAC system or a non-zoned HVAC system, and operate accordingly.
摘要:
Systems and methods for the auxiliary stage control of multistage thermostats are disclosed. An illustrative multistage thermostat for a multistaged HVAC system installed within a building or structure can include a processor having a control algorithm adapted to operate the thermostat in either a normal mode for achieving rapid temperature changes within the building or structure or an economy mode for conserving energy usage. In the economy mode of operation, the thermostat can be configured to determine a target time for achieving a temperature setpoint by either delaying or suppressing activation of the system's auxiliary stage. The target time can be adjusted in part based on the past usage characteristics of the auxiliary stage, the behavior of the user, and/or the progress of the primary stage in achieving the setpoint change without operating the auxiliary stage.
摘要:
A thermostat system having dedicated informational regions in a display and associated buttons or softkeys for sequential operation. The system may maximize utilization of a sectioned display and buttons for system navigation. The informational, selection and/or action design takes into consideration operational button groupings for straightforward comfort settings as well as editing of the clock, day-of-week, schedules, and so forth. Sections, regions or areas of the display may indicate immediate button operations. The changeable information in the regions associated with the softkeys or buttons may provide sequential operation of the thermostat system. The system may have multiple schedules and setpoints for heating and cooling comfort setting flexibility. A combining of individual schedules may be automatically selected. Also, there may be a system switch mode, for example, between heat and cool, where the schedules may be individually edited. Scheduling may be informational and/or action item and option key driven.
摘要:
A building controller for controlling the comfort level in a building is described. The building controller may include a thermostat and wireless remote controller for communicating with the thermostat from a remote location. The thermostat may have access to a first temperature sensor for sensing a first temperature, sometimes at or near the thermostat. The remote controller may likewise have a second temperature sensor for sensing a second temperature, sometimes at or near the remote controller. Under some conditions, the thermostat may use the second temperature sensed by the remote controller to control the comfort level in a building unless or until a predetermined condition is detected, after which the thermostat may use a different temperature, such as the first temperature at or near the thermostat, to control the comfort level in a building.
摘要:
An HVAC remote controller for use in an HVAC system is described. In some instances, the HVAC remote controller may include a wireless interface for communicating with one or more HVAC controllers and/or other HVAC devices. The HVAC remote control unit may be configured to display two or more option on a display, wherein the user may be allowed to select one of the two or more options resulting in a selected option. The HVAC remote control unit may display a visual cue for the selected option that visually distinguishes the selected option from the remaining options. The visual cue may include a different border for the selected option than the remaining options and/or a marker within or adjacent to the border. It is also contemplated that a similar visual cue may be used in conjunction with an HVAC controller display, if desired.