METHODS AND SYSTEMS OF VERIFYING A FILTER CHANGE IN AN HVAC SYSTEM
First Claim
1. A method of verifying installation of a new air filter in an HVAC system, wherein the HVAC system includes a fan that, when activated, drives air through the air filter, the method comprising:
- accepting an input that indicates a new air filter has been installed in the HVAC system;
in response to the input, automatically operating the HVAC system in an air filter verifying mode in which the fan of the HVAC system is activated to drive air through the new air filter;
while in the air filter verifying mode, receiving a measure that is related to an amount of flow restriction presented by the new air filter;
determining a status of the new air filter based, at least in part, on the received measure related to the amount of flow restriction presented by the air filter of the HVAC system; and
displaying an indication on a display that communicates the determined state of the new air filter.
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Accused Products
Abstract
Methods and systems for monitoring the condition of a new air filter installed in an HVAC system are disclosed. In one example, an input that indicates a new air filter has been installed may be accepted, and in response, the HVAC system may be automatically operated in an air filter verifying mode, in which the fan of the HVAC system is activated to drive air through the new air filter. While in the air filter verifying mode, a measure related to an amount of flow restriction presented by the new air filter may be received. A status of the new air filter may be determined based, at least in part, on the received measure related to the amount of flow restriction presented by the air filter of the HVAC system. Once the status of the new air filter is determined, an indication may be displayed on a display, which may communicate the determined status of the new air filter to a user.
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Citations
20 Claims
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1. A method of verifying installation of a new air filter in an HVAC system, wherein the HVAC system includes a fan that, when activated, drives air through the air filter, the method comprising:
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accepting an input that indicates a new air filter has been installed in the HVAC system; in response to the input, automatically operating the HVAC system in an air filter verifying mode in which the fan of the HVAC system is activated to drive air through the new air filter; while in the air filter verifying mode, receiving a measure that is related to an amount of flow restriction presented by the new air filter; determining a status of the new air filter based, at least in part, on the received measure related to the amount of flow restriction presented by the air filter of the HVAC system; and displaying an indication on a display that communicates the determined state of the new air filter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of verifying an air filter change in an HVAC system, the HVAC system includes a number of controllable HVAC components including a fan that drives air through the air filter, the method comprising:
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operating an HVAC system in an air filter verifying mode in response to an indication that a new air filter has been installed in the HVAC system, the air filter verifying mode includes placing each of the controllable HVAC components into a predetermined state including placing the fan into an “
on”
state“
;obtaining a measure of a differential pressure across the new air filter when the HVAC system is operating in the air filter verifying mode to obtain a measured differential pressure value; evaluating a status of the new air filter based, at least in part, on the measured differential pressure value; and displaying an indication on a display that communicates the determined state of the new air filter - View Dependent Claims (14, 15, 16, 17)
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18. An HVAC controller for controlling an HVAC system, the HVAC controller comprising:
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a controller; a memory coupled to the controller; a user interface coupled to the controller, the user interface including a display; wherein the controller is programmed to; accept an input from a user via the user interface that indicates a new air filter has been installed in the HVAC system; in response to the user input, automatically operating the HVAC system in an air filter verifying mode in which the fan of the HVAC system is activated to drive air through the new air filter; while in the air filter verifying mode, receiving a measure that is related to an amount of flow restriction presented by the new air filter; determining a status of the new air filter based, at least in part, on the received measure related to the amount of flow restriction presented by the air filter of the HVAC system; and displaying an indication on the display of the user interface that is related to the determined status of the new air filter. - View Dependent Claims (19, 20)
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Specification