Electric re-heat dehumidification
AssigneeCarrier Corporation
InventorsChris Puranen, Rajendra K. Shah
Life of this patent
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Abstract
An electric re-heat dehumidification apparatus to dehumidify a conditioned space is provided and includes a conditioning unit to produce an output airstream including overcooled air to be provided to the conditioned space to overcool the conditioned space during the dehumidifying of the conditioned space, a resistive element disposed within an output airstream of the conditioning unit, which, when activated, heats the overcooled air of the output airstream and a controller, operably coupled to the resistive element, to activate the resistive element in accordance with information of the conditioning unit, the resistive element and a temperature of the conditioned space to limit the overcooling of the conditioned space.
Claims13
An electric re-heat dehumidification apparatus to dehumidify a conditioned space, comprising:
- a conditioning unit to produce an output airstream including overcooled air to be provided to the conditioned space to overcool the conditioned space during the dehumidifying of the conditioned space;
- a user interface by which an occupant of the conditioned space inputs commands governing conditioning unit operation;
- a resistive element disposed within an output airstream of the conditioning unit, the resistive element comprising first, second and third stages that, when activated, heat the overcooled air of the output airstream;
- and
- a controller to limit the overcooling of the conditioned space, the controller being operably coupled to the resistive element and configured to:
- concurrently activate a combination of the first, second and third stages of the resistive element in accordance with the input commands, information of the conditioning unit and the stages of the resistive element and a temperature of the conditioned space, and
- activate the first, second and third stages of the resistive element in sequence with a first, second or third stage deactivation and repeated activation in accordance with the input commands, information of the conditioning unit and the stages of the resistive element and a temperature of the conditioned space.
A method of performing electric re-heat dehumidification of a conditioned space, comprising:
- activating a low resistive element stage while maintaining intermediate and high resistive element stages in an off condition;
- deactivating the low resistive element stage and activating the intermediate resistive element stage while maintaining the high resistive element stage in the off condition;
- concurrently re-activating the low resistive element stage while maintaining the intermediate resistive element stage in an on condition and the high resistive element stage in on the off condition,
- the low, intermediate and high resistive element stages being disposed in an output airstream of a conditioning unit operated to overcool air to be provided to the conditioned space to overcool the conditioned space during a dehumidification process,
- the activating, the maintaining, the deactivating and the concurrent re-activating being conducted to limit the overcooling of the conditioned space in accordance with cooling and heating capacities of the conditioning unit and the low, intermediate and high resistive element stages, respectively, and a temperature of the conditioned space.
Dependencies are inferred from the claim text.