Integrated HVAC system with variable refrigerant flow unit and air handling unit

A rooftop unit of a heating, ventilation, and air conditioning (HVAC) system, comprising:

• a housing defining a variable refrigerant flow (VRF) section and an air handling unit (AHU) section, wherein the housing comprises a partition extending therethrough and separating the VRF section and the AHU section;
• a vapor compression system, comprising:
• a first VRF unit comprising a first variable speed compressor, a first VRF heat exchanger, and a first reversing valve disposed within the VRF section;
• a second VRF unit comprising a second variable speed compressor, a second VRF heat exchanger, and a second reversing valve disposed within the VRF section;
• and
• an AHU comprising a first AHU heat exchanger and a second AHU heat exchanger disposed within the AHU section,
• wherein the first VRF unit, the second VRF unit, and the AHU are pre-packaged within the housing, the first reversing valve and the second reversing valve are configured to adjust a flow direction of a refrigerant through a refrigerant circuit of the vapor compression system to adjust operation of the vapor compression system between a heating mode and a cooling mode, and wherein each of the first AHU heat exchanger and the second AHU heat exchanger is configured to receive the refrigerant from the first VRF heat exchanger and the second VRF heat exchanger and place the refrigerant in a heat exchange relationship with an air flow, and the AHU section is configured to discharge the air flow into a conditioned space.

A packaged unit of a heating, ventilation, and air conditioning (HVAC) system, comprising:

• a housing defining a variable refrigerant flow (VRF) section and an air handling unit (AHU) section, wherein the housing comprises a partition separating the VRF section and the AHU section;
• a vapor compression system, comprising:
• a refrigerant circuit configured to operate in a cooling mode to cool an air flow and to operate in a heating mode to heat the air flow;
• a plurality of VRF units disposed within the VRF section, wherein each VRF unit of the plurality of VRF units comprises a compressor, a first heat exchanger, and a reversing valve;
• and
• an AHU disposed within the AHU section, wherein the AHU comprises a second heat exchanger configured to place a refrigerant of the refrigerant circuit in a heat exchange relationship with the air flow, the second heat exchanger is configured to receive a flow of the refrigerant that comprises at least a portion of each respective flow of the refrigerant from each VRF unit of the plurality of VRF units, and the AHU is configured to discharge the air flow directly into a conditioned space.