Reversible valve for HVAC system
AssigneeTyco Fire & Security GmbH
InventorsRyan L. Snider, Nicholas P. Mislak, Karla D. Alvarez Cavazos
Life of this patent
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Abstract
A heating, ventilation, and/or air conditioning (HVAC) system includes a reversible valve having an outlet configured to direct refrigerant to a reheat heat exchanger of the HVAC system. The reversible valve is further configured to be in a first configuration to direct the refrigerant through a refrigerant circuit in a first flow direction in a heating mode of the HVAC system and to be in a second configuration to direct the refrigerant through the refrigerant circuit in a second flow direction in a cooling mode of the HVAC system.
Claims25
A heating, ventilation, and/or air conditioning (HVAC) system configured to condition an air flow, comprising:
- a refrigerant circuit configured to circulate a refrigerant;
- a reversible valve disposed along the refrigerant circuit and having a first port and a second port, wherein the reversible valve is configured to be in a first configuration to direct the refrigerant through the refrigerant circuit in a first flow direction in a heating mode of the HVAC system and to be in a second configuration to direct the refrigerant through the refrigerant circuit in a second flow direction in a cooling mode of the HVAC system;
- and
- a reheat heat exchanger configured to transfer heat from the refrigerant to the air flow in the heating mode and in the cooling mode, wherein the reversible valve is configured to discharge the refrigerant to the reheat heat exchanger via the first port and to discharge the refrigerant to an additional heat exchanger via the second port in parallel, and wherein the reheat heat exchanger and the additional heat exchanger are configured to condition the air flow.
A heating, ventilation, and/or air conditioning (HVAC) system, comprising:
- a compressor including a compressor discharge;
- a reheat heat exchanger configured to transfer heat from refrigerant to an air flow directed through the HVAC system in a heating mode of the HVAC system and in a cooling mode of the HVAC system, wherein the reheat heat exchanger is configured to receive the air flow from an additional heat exchanger of the HVAC system;
- and
- a reversing valve comprising an inlet configured to receive refrigerant from the compressor discharge, a first port configured to discharge refrigerant to the reheat heat exchanger in the heating mode, a second port configured to discharge refrigerant to the additional heat exchanger in the heating mode and to receive refrigerant from the additional heat exchanger in the cooling mode, and a third port configured to discharge refrigerant to the reheat heat exchanger in the cooling mode.
A heat pump configured to operate in a heating mode and in a cooling mode, wherein the heat pump comprises:
- a reheat heat exchanger configured to transfer heat from refrigerant of the heat pump to an air flow supplied to a space within a building in the heating mode and in the cooling mode;
- a first heat exchanger configured to transfer heat between refrigerant of the heat pump and the air flow supplied to the space within the building;
- and
- a reversible valve having an inlet configured to receive pressurized refrigerant from a compressor, wherein the reversible valve is configured to be in a first configuration in the heating mode of the heat pump and to be in a second configuration in the cooling mode of the heat pump, and the reversible valve is configured to discharge the pressurized refrigerant to the reheat heat exchanger and to the first heat exchanger in parallel in the first configuration.
Dependencies are inferred from the claim text.