Abstract: An HVAC system utilizes one or more modular heat pump units installed within an outer wall or corner of a building, and one or more active registers. A central hub, which can be integrated into a modular HVAC unit, receives input from thermostats and sensors in the building and adjusts operation of the modular HVAC units and active registers to distribute conditioned air throughout the building. The system provides convenience and comfort of a traditional split HVAC system with significantly reduced installation and maintenance costs. The modular HVAC unit includes an interchangeable cartridge that contains the active components of a heat pump. Cartridges of different capacities can be installed as required, and are easily swapped out for maintenance, servicing, and replacement. A user can control the system using traditional-style thermostats and with a smart phone, tablet or computer. A cloud server provides backup services and remote access to the system.

Abstract: A separable multiple-piece frame assembly (100) for a passenger seat of a vehicle includes a first spreader portion (101) with an inner face, a second spreader portion (201) with an inner face, a plurality of attachments (11, 12, 13, 14, 15, 16) for releasably attaching the first spreader portion (101) and the second spreader portion (201), and an attached configuration. In the attached configuration, the inner face of the first spreader portion and the inner face of the second spreader portion are in contact with one another.

Abstract: Methods and related systems are disclosed for retrieving personality data for a first unit a climate control system. In an embodiment, the method includes querying a second unit controller that has replaced the first unit controller. In addition, the method includes determining that the second unit controller lacks personality data that is unique to the first unit. Further, the method includes transferring the personality data to the second unit controller from a memory of the climate control system that is separate from the second unit controller.

Abstract: Methods and related systems are disclosed for retrieving personality data for a first unit a climate control system. In an embodiment, the method includes querying a second unit controller that has replaced the first unit controller. In addition, the method includes determining that the second unit controller lacks personality data that is unique to the first unit. Further, the method includes transferring the personality data to the second unit controller from a memory of the climate control system that is separate from the second unit controller.

Abstract: Methods and related systems are disclosed for retrieving personality data for a first unit a climate control system. In an embodiment, the method includes querying a second unit controller that has replaced the first unit controller. In addition, the method includes determining that the second unit controller lacks personality data that is unique to the first unit. Further, the method includes transferring the personality data to the second unit controller from a memory of the climate control system that is separate from the second unit controller.

Abstract: An air handling unit has a blower assembly, a first interior zone, and a second interior zone and the blower assembly physically separates the first interior zone from the second interior zone. A method includes providing a cabinet configured to receive a blower assembly, inserting a blower assembly into the air duct, and closing a cabinet door of the cabinet, wherein upon closing the cabinet door, the primary air flow path from a location within the cabinet downstream of the blower assembly to a location within the cabinet upstream of the blower assembly is through a blower housing of the blower assembly. A blower assembly has a blower housing comprising at least one air inlet and at least one air outlet and a blower deck extending from the outlet, wherein the blower deck comprises at least one substantially flat component having a substantially orthogonal wall extending from the flat component.

Abstract: A method of operating a diagnostic data collection device and a diagnostic data bus for an HVAC system are disclosed. In an embodiment, the diagnostic data collection device includes a diagnostic communication interface and a flexible interface module. The interface module measures electrical properties associated with an HVAC component. Electrical properties may include a sensor output and may include analog and digital signals. The diagnostic data collection device generates an exception message if the sensed property is out of specification. Evaluation rules are provided to detect various types of failures, including transient failures, steady state failures, and trending failures. The diagnostic data collection device self-calibrates by recording electrical properties during normal operation of the HVAC equipment. A plurality of diagnostic data collection devices may be coupled by a diagnostic data bug independent of the HVAC system's control bus, to ensure operational integrity of the diagnostic system.

Abstract: An HVAC system utilizes one or more modular heat pump units installed within an outer wall or corner of a building, and one or more active registers. A central hub, which can be integrated into a modular HVAC unit, receives input from thermostats and sensors in the building and adjusts operation of the modular HVAC units and active registers to distribute conditioned air throughout the building. The system provides convenience and comfort of a traditional split HVAC system with significantly reduced installation and maintenance costs. The modular HVAC unit includes an interchangeable cartridge that contains the active components of a heat pump. Cartridges of different capacities can be installed as required, and are easily swapped out for maintenance, servicing, and replacement. A user can control the system using traditional-style thermostats and with a smart phone, tablet or computer. A cloud server provides backup services and remote access to the system.

Abstract: An air handling unit has an interior wall configured to selectively retain a removable component of the air handling unit. An air handling unit has an interior wall configured as a drain pan. An air handling unit has an outer skin joined to the interior wall, an insulator disposed between the interior wall and the outer skin, and the interior wall has a mounting channel configured to selectively retain a removable component of the air handling unit.

Abstract: An air handling unit has an interior wall configured to selectively retain a removable component of the air handling unit. An air handling unit has an interior wall configured as a drain pan. An air handling unit has an outer skin joined to the interior wall, an insulator disposed between the interior wall and the outer skin, and the interior wall has a mounting channel configured to selectively retain a removable component of the air handling unit.

Abstract: An air handling unit has a blower assembly, a first interior zone, and a second interior zone and the blower assembly physically separates the first interior zone from the second interior zone. A method includes providing a cabinet configured to receive a blower assembly, inserting a blower assembly into the air duct, and closing a cabinet door of the cabinet, wherein upon closing the cabinet door, the primary air flow path from a location within the cabinet downstream of the blower assembly to a location within the cabinet upstream of the blower assembly is through a blower housing of the blower assembly. A blower assembly has a blower housing comprising at least one air inlet and at least one air outlet and a blower deck extending from the outlet, wherein the blower deck comprises at least one substantially flat component having a substantially orthogonal wall extending from the flat component.

Abstract: An HVAC system utilizes one or more modular heat pump units installed within an outer wall or corner of a building, and one or more active registers. A central hub, which can be integrated into a modular HVAC unit, receives input from thermostats and sensors in the building and adjusts operation of the modular HVAC units and active registers to distribute conditioned air throughout the building. The system provides convenience and comfort of a traditional split HVAC system with significantly reduced installation and maintenance costs. The modular HVAC unit includes an interchangeable cartridge that contains the active components of a heat pump. Cartridges of different capacities can be installed as required, and are easily swapped out for maintenance, servicing, and replacement. A user can control the system using traditional-style thermostats and with a smart phone, tablet or computer. A cloud server provides backup services and remote access to the system.

Abstract: A method of operating a diagnostic data collection device and a diagnostic data bus for an HVAC system are disclosed. In an embodiment, the diagnostic data collection device includes a diagnostic communication interface and a flexible interface module. The interface module measures electrical properties associated with an HVAC component. Electrical properties may include a sensor output and may include analog and digital signals. The diagnostic data collection device generates an exception message if the sensed property is out of specification. Evaluation rules are provided to detect various types of failures, including transient failures, steady state failures, and trending failures. The diagnostic data collection device self-calibrates by recording electrical properties during normal operation of the HVAC equipment. A plurality of diagnostic data collection devices may be coupled by a diagnostic data bug independent of the HVAC system's control bus, to ensure operational integrity of the diagnostic system.

Abstract: A diagnostic data collection device and a diagnostic data bus are disclosed. In an embodiment, the diagnostic data collection device includes a diagnostic communication interface and a flexible interface module. The interface module is configurable to measure one or more electrical properties associated with an HVAC component, such as voltage, current, resistance. Electrical properties may include a sensor output and may include analog and digital signals. The diagnostic data collection device generates an exception message if the sensed property is out of specification. Evaluation rules are provided to detect various types of failures, including transient failures, steady state failures, and trending failures. The diagnostic data collection device self-calibrates by recording electrical properties during normal operation of the HVAC equipment.

Abstract: An air handling unit has an interior wall configured to selectively retain a removable component of the air handling unit. An air handling unit has an interior wall configured as a drain pan. An air handling unit has an outer skin joined to the interior wall, an insulator disposed between the interior wall and the outer skin, and the interior wall has a mounting channel configured to selectively retain a removable component of the air handling unit.

Abstract: An HVAC system having an airflow path, a primary heat exchanger disposed along the airflow path, wherein the airflow path at least partially passes through the primary heat exchanger, and a multipurpose cabinet selectively configurable between at least a first configuration for housing a first type of auxiliary heat transfer component and a second configuration for housing a second type of auxiliary heat transfer component, wherein the airflow path at least partially passes through the multipurpose cabinet.

Abstract: An air handling unit has an interior wall configured to selectively retain a removable component of the air handling unit. An air handling unit has an interior wall configured as a drain pan. An air handling unit has an outer skin joined to the interior wall, an insulator disposed between the interior wall and the outer skin, and the interior wall has a mounting channel configured to selectively retain a removable component of the air handling unit.

Abstract: An air handling unit has a first modular cabinet comprising a first profile, a second modular cabinet comprising a second profile that is complementary to the first profile, and the first profile comprises an alignment feature. An air handling unit has a heat exchanger cabinet comprising a first profile, a blower cabinet comprising a second profile complementary to the first profile, a first connector system disposed at least partially on each of the heat exchanger cabinet and the blower cabinet, and the first connector system is operable to releasably secure the first profile to the second profile. An air handling unit has a first modular cabinet comprising a first portion of a first connection system and a second modular cabinet comprising a second portion of the first connection system. A component of the first portion may be least partially received within the second portion.

Abstract: Systems and methods for fault detection and diagnosis (FDD) in a heating, ventilation and air conditioning (HVAC) system include a server identifying a fault and one or more predicted causes of the fault based on measurements of operational parameters from the HVAC system. The server also receives and utilizes information associated with the reported fault from service technicians who service the HVAC to correct the reported fault condition. The information includes details of the corrective measures successfully implemented by the technicians to correct the fault, and a determination of whether the server correctly identified the actual fault. The information is implemented by the server to improve the accuracy of the FDD algorithms based on measured parameters of the HVAC system.

Abstract: A fault detection module and related methods of prognostic fault detection for an HVAC system are disclosed. Baseline operating parameters of an HVAC system operating in a known balanced state are collected during a calibration period. A set of coefficients for an enthalpy model are generated from the collected baseline parameters to define the balanced operation of the HVAC system. During normal operating times, runtime operating parameters of the HVAC system are collected. The expected high-side and low-side enthalpies are computed using the enthalpy model, and compared to actual high-side and low-side enthalpies. The relationships between expected and actual enthalpies are utilized to determine whether a potential or actual fault condition exists, and optionally, the nature of the fault. A fault message indicating the fault is transmitted to one or more recipient devices.