Methods and systems for setting an air filter change threshold in an HVAC system using a blocking panel
First Claim
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1. A method of setting an air filter change threshold value for an HVAC system, the HVAC system having a number of controllable HVAC components including a fan, wherein the fan, when activated, drives air through the air filter of the HVAC system, the method comprising:
- installing a blocking panel in an HVAC system to simulate a dirty air filter;
operating the HVAC system in a selected mode with the blocking panel in place;
obtaining a measure that is related to an amount of flow restriction presented by the block panel;
determining an air filter change threshold value based, at least in part, on the measure related to the amount of flow restriction presented by the blocking panel; and
storing the air filter change threshold value.
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Abstract
A blocking panel may be used to set an air filter change threshold value for an air filter monitor installed in an HVAC system. The air filter change threshold value may then be used to determine a status of an air filter (e.g., clean or dirty).
93 Citations
21 Claims
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1. A method of setting an air filter change threshold value for an HVAC system, the HVAC system having a number of controllable HVAC components including a fan, wherein the fan, when activated, drives air through the air filter of the HVAC system, the method comprising:
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installing a blocking panel in an HVAC system to simulate a dirty air filter; operating the HVAC system in a selected mode with the blocking panel in place; obtaining a measure that is related to an amount of flow restriction presented by the block panel; determining an air filter change threshold value based, at least in part, on the measure related to the amount of flow restriction presented by the blocking panel; and storing the air filter change threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of setting an air filter change threshold value for an HVAC system, the HVAC system having a number of controllable HVAC components including a fan, wherein the fan, when activated, drives air through the air filter of the HVAC system, the method comprising:
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installing a blocking panel in an HVAC system to simulate a dirty air filter; instructing an HVAC system to operate in a selected mode; obtaining a differential pressure across the blocking panel while the HVAC system is operating in the selected mode to obtain a differential pressure value associated with the blocking panel; determining an air filter change threshold value that is indicative of an expected pressure differential value across a dirty filter, the air filter change threshold value based, at least in part, on the differential pressure value associated with the blocking panel; and storing the air filter change threshold value. - View Dependent Claims (16, 17, 18)
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19. An installation kit for setting an air filter change threshold value for an HVAC system, the HVAC system having a number of controllable HVAC components including a fan, wherein the fan, when activated, drives air through the air filter of the HVAC system, the kit comprising:
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a blocking panel for simulating a dirty filter in the HVAC system; a template for sizing the blocking panel, the template including cutting guides for cutting the blocking panel to a selected one of a plurality of sizes; and an installation guide. - View Dependent Claims (20, 21)
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Specification