Abstract: The present invention provides a heating, ventilation, and air-conditioning (HVAC) system using an A2L refrigerant and a method of installing the HVAC system in a building. The HVAC system includes an indoor unit having a heat exchanger that uses an A2L refrigerant, a blower, an outdoor unit, an A2L control board, and one or more A2L sensors configured to detect an amount of A2L refrigerant. In one or more embodiments, the indoor unit is electrically coupled to the blower, the A2L control board, and the outdoor unit. Also, in one or more embodiments, the A2L control board is also electrically coupled to the blower and the one or more A2L sensors.

Abstract: A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system may include a thermostat. The system may also operate without a thermostat. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.

Abstract: A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system may include a thermostat. The system may also operate without a thermostat. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.

Abstract: A system and method for controlling the air temperature in a building. The system includes one or more equipment of a heating ventilation and air-conditioning (HVAC) system, at least one of one or more thermostats or one or more temperature sensors, and a controller. The controller includes a communication module to exchange data with one or more devices and an equipment interface configured to communicate control signals to the one or more equipment. The controller is configured to obtain as user input a target rate of change (ROC) of air temperature in the building and operate the one or more equipment of the HVAC system to achieve the target ROC. The controller operates the one or more equipment at an initial capacity and adjusts the capacity of the one or more equipment to achieve the target ROC of the air temperature in the building.

Abstract: A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system may include a thermostat. The system may also operate without a thermostat. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.

Abstract: A system and method for controlling indoor climate of a building. The system includes one or more equipment of a heating ventilation and air-conditioning (HVAC) system, a thermostat configured to wirelessly transmit operational data and a controller communicatively coupled to the one or more equipment and the thermostat. The controller includes a communication module configured to exchange the operational data with the thermostat and an equipment interface configured to communicate control signals to the one or more equipment to control operation of the one or more equipment. The controller is configured to receive the operational data wirelessly transmitted from the thermostat using the communication module, determine based on the operational data a control plan to operate the one or more equipment of the HVAC system, and operate the one or more equipment of the HVAC system based on the control plan.

Abstract: The present invention provides a system for detecting an amount of A2L refrigerant in an air temperature controller using an A2L refrigerant, and a method of installing a configuration of A2L sensors in the air temperature controller using an A2L refrigerant. The system includes an A2L control board, a first A2L sensor, and a second A2L sensor. The first A2L sensor and the second A2L sensor are coupled in series and electrically coupled to the A2L control board. Each of the first A2L sensor and the second A2L sensor include sensing components configured to detect the amount of A2L refrigerant.

Abstract: The present invention provides a system for detecting an amount of R-32 refrigerant in an air temperature controller using an R-32 refrigerant, and a method of installing a configuration of R-32 sensors in the air temperature controller using an R-32 refrigerant. The system includes an R-32 control board, a first R-32 sensor, and a second R-32 sensor. The first R-32 sensor and the second R-32 sensor are coupled in series and electrically coupled to the R-32 control board. Each of the first R-32 sensor and the second R-32 sensor include sensing components configured to detect the amount of R-32 refrigerant.

Abstract: A system and method for controlling the air temperature in a building. The system includes one or more equipment of a heating ventilation and air-conditioning (HVAC) system, at least one of one or more thermostats or one or more temperature sensors, and a controller. The controller includes a communication module to exchange data with one or more devices and an equipment interface configured to communicate control signals to the one or more equipment. The controller is configured to obtain as user input a target rate of change (ROC) of air temperature in the building and operate the one or more equipment of the HVAC system to achieve the target ROC. The controller operates the one or more equipment at an initial capacity and adjusts the capacity of the one or more equipment to achieve the target ROC of the air temperature in the building.

Abstract: A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system may include a thermostat. The system may also operate without a thermostat. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.

Abstract: A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system may include a thermostat. The system may also operate without a thermostat. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.

Abstract: A system and method for controlling indoor climate of a building. The system includes one or more equipment of a heating ventilation and air-conditioning (HVAC) system, a thermostat configured to wirelessly transmit operational data and a controller communicatively coupled to the one or more equipment and the thermostat. The controller includes a communication module configured to exchange the operational data with the thermostat and an equipment interface configured to communicate control signals to the one or more equipment to control operation of the one or more equipment. The controller is configured to receive the operational data wirelessly transmitted from the thermostat using the communication module, determine based on the operational data a control plan to operate the one or more equipment of the HVAC system, and operate the one or more equipment of the HVAC system based on the control plan.

Abstract: A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system may include a thermostat. The system may also operate without a thermostat. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.

Abstract: The present invention provides a system for detecting an amount of A2L refrigerant in an air temperature controller using an A2L refrigerant, and a method of installing a configuration of A2L sensors in the air temperature controller using an A2L refrigerant. The system includes an A2L control board, a first A2L sensor, and a second A2L sensor. The first A2L sensor and the second A2L sensor are coupled in series and electrically coupled to the A2L control board. Each of the first A2L sensor and the second A2L sensor include sensing components configured to detect the amount of A2L refrigerant.

Abstract: The present invention provides a system for detecting an amount of R-32 refrigerant in an air temperature controller using an R-32 refrigerant, and a method of installing a configuration of R-32 sensors in the air temperature controller using an R-32 refrigerant. The system includes an R-32 control board, a first R-32 sensor, and a second R-32 sensor. The first R-32 sensor and the second R-32 sensor are coupled in series and electrically coupled to the R-32 control board. Each of the first R-32 sensor and the second R-32 sensor include sensing components configured to detect the amount of R-32 refrigerant.

Abstract: A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system may include a thermostat. The system may also operate without a thermostat. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.

Abstract: The present invention provides a system for detecting an amount of R-32 refrigerant in an air temperature controller using an R-32 refrigerant, and a method of installing a configuration of R-32 sensors in the air temperature controller using an R-32 refrigerant. The system includes an R-32 control board, a first R-32 sensor, and a second R-32 sensor. The first R-32 sensor and the second R-32 sensor are coupled in series and electrically coupled to the R-32 control board. Each of the first R-32 sensor and the second R-32 sensor include sensing components configured to detect the amount of R-32 refrigerant.

Abstract: The present invention provides a system for detecting an amount of R-454b refrigerant in an air temperature controller using an R-454b refrigerant, and a method of installing a configuration of R-454b sensors in the air temperature controller using an R-454b refrigerant. The system includes an R-454b control board, a first R-454b sensor, and a second R-454b sensor. The first R-454b sensor and the second R-454b sensor are coupled in series and electrically coupled to the R-454b control board. Each of the first R-454b sensor and the second R-454b sensor include sensing components configured to detect the amount of R-454b refrigerant.

Abstract: The present invention provides a heating, ventilation, and air-conditioning (HVAC) system using an A2L refrigerant and a method of installing the HVAC system in a building. The HVAC system includes an indoor unit having a heat exchanger that uses an A2L refrigerant, a blower, an outdoor unit, an A2L control board, and one or more A2L sensors configured to detect an amount of A2L refrigerant. In one or more embodiments, the indoor unit is electrically coupled to the blower, the A2L control board, and the outdoor unit. Also, in one or more embodiments, the A2L control board is also electrically coupled to the blower and the one or more A2L sensors.

Abstract: The present invention provides a system for detecting an amount of A2L refrigerant in an air temperature controller using an A2L refrigerant, and a method of installing a configuration of A2L sensors in the air temperature controller using an A2L refrigerant. The system includes an A2L control board, a first A2L sensor, and a second A2L sensor. The first A2L sensor and the second A2L sensor are coupled in series and electrically coupled to the A2L control board. Each of the first A2L sensor and the second A2L sensor include sensing components configured to detect the amount of A2L refrigerant.