Hvac controller with hvac system fault detection
AssigneeHoneywell International Inc.
InventorEric Barton
Life of this patent
Estimating the term…
Abstract
An HVAC controller may be programmed to monitor a current delta T of an HVAC system and to determine a performance level of the HVAC system based, at least in part, on one or more delta T limits stored in the memory of the HVAC controller. The HVAC controller may be further programmed to display or provide a user alert if the performance level falls outside of a normal operating range for the HVAC system.
Claims23
An HVAC controller configured to control one or more components of an HVAC system, the HVAC controller comprising:
- a user interface including a display;
- a memory;
- and
- a controller connected to the memory and the user interface, the controller programmed to monitor a delta T of an HVAC system during operation of the HVAC system, and to determine a performance level of the HVAC system based, a least in part, on a delta T limit stored in the memory of the HVAC controller.
A method of monitoring a performance of an HVAC system, the HVAC system including one or more HVAC components that are controlled, at least in part, by an HVAC controller having a user interface including a display, a memory, and a controller, the method comprising:
- the controller monitoring one or more signals from the HVAC system to determine a current delta T value for the HVAC system;
- and
- the controller determining a performance level of the HVAC system based, a least in part, on the current delta T value and a delta T limit stored in the memory of the HVAC controller.
An HVAC controller configured to control one or more components of an HVAC system, the HVAC controller comprising:
- a user interface including a display;
- a memory;
- and
- a controller connected to the memory and the user interface, the controller programmed to monitor a current delta T of an HVAC system, and to determine a performance level of the HVAC system based, a least in part, on one or more delta T limits stored in the memory of the HVAC controller;
- the controller further programmed to display on the display of the HVAC controller a user alert if the performance level falls outside of a normal operating range and if the HVAC system is not operating in one or more specified conditions.
Dependencies are inferred from the claim text.