HVAC system having electrical switch for supplying power to a fan and a compressor
AssigneeJohnson Controls Light Commercial IP GmbH
InventorsRobert L. Eskew, Derrick Madison Guyot, Toan Hai Dinh, Zili Shi
Life of this patent
Estimating the term…
Abstract
A control system for a heating, ventilation, and air conditioning (HVAC) system includes an electrical switch configured to close and enable supply of power to a compressor of the HVAC system based on receipt of an electric current, a first electrical circuit configured to direct the electric current to the electrical switch, and a second electrical circuit configured to direct the electric current to bypass the electrical switch and direct the electric current toward a fan controller of the HVAC system.
Claims16
A control system for a heating, ventilation, and air conditioning (HVAC) system, comprising:
- a contactor configured to close and enable supply of power to a compressor of the HVAC system in response to receipt of an electric current;
- a first electrical circuit configured to direct the electric current to the contactor;
- a second electrical circuit configured to direct the electric current to bypass the contactor and direct the electric current toward a fan controller of the HVAC system;
- and
- a common wire configured to direct the electric current to a node housed within a wire harness, wherein the first electrical circuit is configured to direct the electric current from the node to the contactor, and the second electrical circuit is configured to direct the electric current from the node to the fan controller.
A heating, ventilation, and air conditioning (HVAC) system, comprising:
- a compressor configured to discharge a working fluid toward a heat exchanger;
- a contactor configured to enable a supply of power to the compressor in response to receipt of an electric current by the contactor via a first electrical circuit, wherein the supply of power comprises a voltage greater than a voltage associated with the electric current;
- a fan controller configured to operate a fan to force an air flow across the heat exchanger, wherein the fan controller is configured to enable an additional supply of power to a fan motor configured to drive the fan based on receipt of the electric current via a second electrical circuit;
- and
- a common electrical path configured to direct the electric current to a node housed within a wire harness, wherein the first electrical circuit is configured to direct the electric current from the node to the contactor, and the second electrical circuit is configured to direct the electric current from the node to the fan controller.
A heating, ventilation, and air conditioning (HVAC) system, comprising:
- a first electrical path, a second electrical path, and a third electrical path electrically coupled to one another at a node;
- and
- a pressure switch disposed along the second electrical path,
- wherein the first electrical path is configured to direct an electric current from indoor HVAC equipment to the node,
- wherein the second electrical path is configured to direct the electric current from the node to a contactor configured to enable a supply of power to a compressor of the HVAC system,
- wherein the supply of power comprises a voltage greater than a voltage associated with the electric current,
- wherein the third electrical path is configured to direct the electric current from the node to a fan controller configured to enable an additional supply of power to a fan of the HVAC system,
- wherein the contactor is configured to direct the additional supply of power to the fan controller in an open configuration of the contactor, and
- wherein the node is housed in a wire harness.
Dependencies are inferred from the claim text.