Humidity control for air conditioning system
First Claim
1. A method of controlling an HVAC system, comprising:
- allowing a user of a thermostat controller of the HVAC system to select between enabling and disabling a humidity control for use in a cooling mode of the HVAC system that selectively operates a compressor in response to a call for cooling, wherein the disabling the humidity control comprises allowing the user to override an otherwise automatic enablement of the humidity control;
Enabling the humidity control in response to the user selecting to enable the humidity control via the thermostat controller;
operating a fan of the HVAC system according to an overridable user selectable fan control preference that, when not overridden by the humidity control, causes operation of the fan independent of a call for cooling of the HVAC system; and
in response to enabling the humidity control, operating the humidity control to selectively override the overridable user selectable fan control preference that, but for being selectively overridden by the humidity control, causes operation of the fan independent of the call for cooling;
wherein operating the humidity control comprises after selectively overriding the overridable user selectable fan control preference, discontinuing the overriding of the overridable user selectable fan control preference; and
wherein the discontinuing the overriding of the overridable user selectable fan control preference is conditioned on a comparison between a humidity setpoint selected via the thermostat controller and a sensed humidity.
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Accused Products
Abstract
In an air conditioning system for circulating cooled air to an enclosed space, a controller including a temperature sensor, a humidity sensor and a microcontroller for controlling the indoor fan or blower to prevent operation of same if a fan run-on mode is selected or continuous fan operation is selected and the humidity sensed in the enclosed space is greater than a predetermined amount. Continuous fan operation is allowed unless the humidity exceeds a user defined setpoint during an air cooling operating mode. If the humidity sensed is greater than the predetermined amount, the fan is operated only when the system is providing cooled air, such as when the system compressor is energized.
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Citations
5 Claims
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1. A method of controlling an HVAC system, comprising:
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allowing a user of a thermostat controller of the HVAC system to select between enabling and disabling a humidity control for use in a cooling mode of the HVAC system that selectively operates a compressor in response to a call for cooling, wherein the disabling the humidity control comprises allowing the user to override an otherwise automatic enablement of the humidity control; Enabling the humidity control in response to the user selecting to enable the humidity control via the thermostat controller; operating a fan of the HVAC system according to an overridable user selectable fan control preference that, when not overridden by the humidity control, causes operation of the fan independent of a call for cooling of the HVAC system; and in response to enabling the humidity control, operating the humidity control to selectively override the overridable user selectable fan control preference that, but for being selectively overridden by the humidity control, causes operation of the fan independent of the call for cooling;
wherein operating the humidity control comprises after selectively overriding the overridable user selectable fan control preference, discontinuing the overriding of the overridable user selectable fan control preference; and
wherein the discontinuing the overriding of the overridable user selectable fan control preference is conditioned on a comparison between a humidity setpoint selected via the thermostat controller and a sensed humidity. - View Dependent Claims (2, 3, 4, 5)
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Specification