Abstract: Aspects of the invention are directed to condensate traps having a back portion and a front portion. The back portion includes a first passage enclosed between the first wall, a second wall, and a back wall. A first opening in the back portion connects the first wall and the second wall with a first float placed over the first opening and does not travel below the first opening and is prevented from leaving the first passage by a first constriction. The front portion of the condensate trap includes a second passage enclosed between the third wall and the fourth wall. A second opening connects the third wall and the fourth wall in the front portion and a second float is placed below the second opening such that it does not travel through the second opening and is prevented from falling below a predetermined level by a second constriction.

Abstract: A limit switch assembly including a shape memory member, a furnace system for incorporating the same, and a method for controlling a furnace are provided. The limit switch assembly includes a switch communicatively connected to a control board of a furnace. The switch is configured to send a signal to the control board when actuated. The shape memory member is configured to actuate the switch. The control board, in certain instances, shuts off the furnace and arrests the supply of combustible gas when receiving the signal from the switch. The shape memory member, in certain instances, actuates the switch as a result of being heated.

Abstract: A method of monitoring heating, ventilation and air conditioning (HVAC) equipment is provided. The method includes installing a part into the HVAC equipment, installing a sensor into the HVAC equipment for sensing a parameter which is indicative of a condition of the part, setting a lifespan of the part, adjusting the lifespan in accordance with readings generated by the sensor and issuing an alert as to an adjustment in the lifespan.

Abstract: An air conditioning system includes a first compressor and a second compressor arranged in parallel with the first compressor. The first compressor is a first type of compressor and the second compressor is a second type of compressor different from the first type of compressor. A valve is arranged upstream from both the first compressor and the second compressor relative to a flow of a fluid. The valve is operable to selectively supply the fluid to the first compressor, the second compressor, or both the first compressor and the second compressor.

Abstract: A method (300) for operating a heating, ventilation, and air conditioning (HVAC) system includes an apparatus (102) to select a set point temperature and allow the HVAC system to reach the set point temperature. The apparatus (102) maintains the set point temperature for a predetermined duration and reach a first temperature by changing the setpoint temperature by a predefined value and maintain the first temperature for a first predetermined duration. The first temperature is changed by the predefined value to reach a second temperature and maintain the second temperature for a second predetermined duration. The apparatus modify the second temperature by the predefined value to reach the first temperature and maintain the first temperature for a third predetermined duration. The apparatus (102) modifies the first temperature by the predefined value to reach the set point temperature.

Abstract: A system and method for dual compressor modulation by controlling a flow of refrigerant in a reversing valve. A method includes receiving, by a control board, a command for operating a reversing valve in different modes. The reversing valve includes a first tube, a second tube, a third tube, a fourth tube and a fifth tube. The method includes determining a position for operating the reversing valve in a first position or a second position in a first mode and in a third position or a fourth position in a second mode. The method includes controlling a flow of refrigerant based on the command and the position by connecting the fourth tube with a first compressor in the first/third position and connecting the fifth tube with a second compressor in the second/fourth position.

Abstract: A furnace with at least one adjustable baffle assembly, a heating, ventilation, and/or air conditioning (HVAC) system incorporating the same, and a method of operating the HVAC system are provided. The at least one adjustable baffle assembly is disposed adjacent to the furnace heat exchanger in the furnace. The at least one adjustable baffle assembly is configured to actuate, between a cooling position and a heating position. The at least one adjustable baffle assembly may be in a heating position when the HVAC system is in a heating mode. The at least one adjustable baffle assembly may be in a cooling position when the HVAC system is in a cooling mode. The actuation of the adjustable baffle assembly may increase the efficiency of the furnace and/or HVAC system.

Abstract: Aspects of the invention are directed to condensate traps having a back portion and a front portion. The back portion includes a first passage enclosed between the first wall, a second wall, and a back wall. A first opening in the back portion connects the first wall and the second wall with a first float placed over the first opening and does not travel below the first opening and is prevented from leaving the first passage by a first constriction. The front portion of the condensate trap includes a second passage enclosed between the third wall and the fourth wall. A second opening connects the third wall and the fourth wall in the front portion and a second float is placed below the second opening such that it does not travel through the second opening and is prevented from falling below a predetermined level by a second constriction.

Abstract: Aspects of the invention are directed towards a system and method for varying the refrigerant flow using a flow diverter of a reversing valve in heat pumps. One or more embodiments of the invention describe the method comprising steps of receiving, by a control circuit, a command for operating a reversing valve in a plurality of modes. The reversing valve comprises a first tube, a second tube, a third tube and a fourth tube. The method comprising steps of determining a tonnage profile for refrigerant to flow in the reversing valve, generating a signal based on the command and the tonnage profile and communicating the signal to a stepper motor. The method further comprising steps of rotating a flow diverter of the reversing valve by the stepper motor based on the signal. The rotation of the flow diverter allows the refrigerant to flow in one of the plurality of modes.

Abstract: A system and method of providing power to at least one component within a gas furnace, the method including operating a gas furnace to produce thermal energy; operating a waste heat assembly to extract the thermal energy from the gas furnace; operating the waste heat assembly to convert the extracted thermal energy to electrical energy; operating the waste heat assembly to transmit the electrical energy to at least one component of the gas furnace.

Abstract: A limit switch assembly including a shape memory member, a furnace system for incorporating the same, and a method for controlling a furnace are provided. The limit switch assembly includes a switch communicatively connected to a control board of a furnace. The switch is configured to send a signal to the control board when actuated. The shape memory member is configured to actuate the switch. The control board, in certain instances, shuts off the furnace and arrests the supply of combustible gas when receiving the signal from the switch. The shape memory member, in certain instances, actuates the switch as a result of being heated.