A heat pump is provided that is alternately operable in a heating mode for heating an interior space under cold or cool ambient conditions and in a cooling or dehumidification mode for cooling the interior space under warm or hot ambient conditions. The heat pump has a direct expansion (DX) coil that operates as a condenser coil for heating air passing over said DX coil when the heat pump is operated in the heating mode. The heat pump has a first outside air path that delivers outside air over the DX coil. The heat pump additionally has a second outside air airflow path that bypasses the DX coil. The heat pump optionally includes heat reclaim coil. When the heat pump has a heat reclaim coil, the second outside air airflow path is upstream of the heat reclaim coil for delivering outside air over the heat reclaim coil.
F24F 1/028 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by air supply means, e.g. fan casings, internal dampers or ducts
F24F 1/02 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
F24F 11/46 - Improving electric energy efficiency or saving
F24F 12/00 - Use of energy recovery systems in air conditioning, ventilation or screening
A heat pump is provided that is alternately operable in a heating mode for heating an interior space under cold or cool ambient conditions and in a cooling or dehumidification mode for cooling the interior space under warm or hot ambient conditions. The heat pump has a direct expansion (DX) coil that operates as a condenser coil for heating air passing over said DX coil when the heat pump is operated in the heating mode. The heat pump has a first outside air path that delivers outside air over the DX coil. The heat pump additionally has a second outside air airflow path that bypasses the DX coil. The heat pump optionally includes heat reclaim coil. When the heat pump has a heat reclaim coil, the second outside air airflow path is upstream of the heat reclaim coil for delivering outside air over the heat reclaim coil.
F24F 3/14 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidificationAir-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by dehumidification
2 transcritical system's efficiency by subcooling the refrigerant for applications involving dehumidification HVAC systems which often results in a phenomenon called “overcooling” during the dehumidification season.
42 - Scientific, technological and industrial services, research and design
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Business process management, namely, business consultation in the field of business process improvement and enterprise architecture development; business management; customer relationship management; customer service management for others, all of the foregoing for use in the fields of heating, air conditioning and refrigeration Consulting services related to the design and layout of mechanical systems and Heating Ventilation and Air Conditioning (HVAC) systems in supermarkets for the purposes of maximizing energy efficiency
42 - Scientific, technological and industrial services, research and design
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(1) Business process management; business management; customer relationship management; customer service management
(2) Consulting services related to the design and layout of mechanical systems and Heating Ventilation and Air Conditioning (HVAC) systems in supermarkets for the purposes of maximizing energy efficiency
6.
HVAC dual de-superheating/subcooling heat reclaim system for transcritical refrigeration systems
A dual reclaim coil with a smart control application is provided that allows the refrigerant inlet to the HVAC unit switch between the two sides of the condenser is aimed to use the high temperature and pressure of the condenser/gas cooler outlet while a CO2 refrigerant system is operating above critical point. This occurs in hot ambient conditions, when the need for heating in the space is not as great as in the wintertime and the available heat at the condenser/gas cooler's outlet is sufficient to satisfy the heating load. This also mitigates space overcooling, while increasing the CO2 transcritical system's efficiency by subcooling the refrigerant for applications involving dehumidification HVAC systems which often results in a phenomenon called "overcooling" during the dehumidification season.
An air conditioning system includes a housing defining a first airflow path therein between an outside air inlet over a cooling coil and an outlet for delivering outside air from the outside air inlet over the coil to the outlet, a second airflow path between a return air inlet over the cooling coil and to the outlet for delivering return air over the cooling coil, and a third airflow path between the return air inlet and the outlet for delivering return air through the housing without passing over the cooling coil. The system includes outside, return, and bypass air dampers that are sequentially moveable between open and closed positions for directing air through or preventing air from entering the first, second, and third airflow paths, respectively. A controller independently controls the opening and closing of each damper in response to data received from the sensor.
F24F 3/14 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidificationAir-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by dehumidification
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
F24F 1/0035 - Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
F24F 11/77 - Control systems characterised by their outputsConstructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
A method of self-balancing a plurality of mechanical components within a temperature control unit of an HVAC system. Each mechanical component is adjustable by the controller to vary airflow within the temperature control unit. For each mechanical components, a property is measured. An estimated condition of the mechanical component is calculated based on the measured property and known qualities of the temperature control unit. A desired condition for the mechanical component is determined based on a desired air condition within the HVAC system or building envelope. The estimated condition of the mechanical component is compared to the desired condition of the component. The condition of the mechanical component is changed using a controller to more closely align the estimated condition to the desired condition to achieve the desired indoor air condition. Steps are repeated until the difference between the estimated condition and desired condition is within a threshold value.
F24F 11/62 - Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
G05B 19/10 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using selector switches
10.
A METHOD OF SELF-BALANCING A PLURALITY OF MECHANICAL COMPONENTS WITHIN A TEMPERATURE CONTROL UNIT OF AN HVAC SYSTEM
There is a method of self-balancing a plurality of mechanical components within a temperature control unit of an HVAC system using a controller. Each of the plurality of mechanical components are adjustable by the controller to vary airflow within the temperature control unit. For each of the plurality of mechanical components, a property of the mechanical component is measured. An estimated condition of the mechanical component is calculated based on the measured property and based on known qualities of the temperature control unit. A desired condition for the component is determined based on a desired air condition within the HVAC system or building envelope. The estimated condition of the component is compared to the desired condition of the component. The condition of the component is changed using the controller to more closely align the estimated condition to the desired condition to achieve the desired indoor air condition. Those steps are repeated until the difference between the estimated condition of the component and the desired condition of the component is within a threshold value.
F24F 11/49 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
F24F 11/74 - Control systems characterised by their outputsConstructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
An air conditioning system includes a housing defining a first airflow path therein between an outside air inlet over a cooling coil and an outlet for delivering outside air from the outside air inlet over the coil to the outlet, a second airflow path between a return air inlet over the cooling coil and to the outlet for delivering return air over the cooling coil, and a third airflow path between the return air inlet and the outlet for delivering return air through the housing without passing over the cooling coil. The system includes outside, return, and bypass air dampers that are sequentially moveable between open and closed positions for directing air through or preventing air from entering the first, second, and third airflow paths, respectively. A controller independently controls the opening and closing of each damper in response to data received from the sensor.
F24F 3/14 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidificationAir-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by dehumidification
F24F 1/00 - Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
An air conditioning system is provided for dehumidifying and cooling air, and circulating the air through an interior space defined by a structure. The system comprises a housing that defines a first airflow path therein between an outside air inlet over a cooling coil and an outlet for delivering outside air from said outside air inlet over said coli to the outlet, a second airflow path between a return air inlet over the cooling coil and to the outlet for delivering return air over the cooling coil, and a third airflow path between the return air inlet and the outlet for delivering return air through the housing without passing over the cooling coil. The system includes outside air, return air, and bypass air dampers that are sequentially moveable between an open position and a closed position for directing air through or preventing air from entering the first, second, and third airflow paths, respectively. A controller is configured to independently control the opening and closing of each damper in response to data received from the sensor.
A47F 3/04 - Showcases or show cabinets air-conditioned, refrigerated
F24F 3/14 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidificationAir-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by dehumidification
F24F 11/70 - Control systems characterised by their outputsConstructional details thereof
F24F 11/81 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling the air supply to heat-exchangers or bypass channels
F24F 12/00 - Use of energy recovery systems in air conditioning, ventilation or screening
F25D 17/06 - Arrangements for circulating cooling fluidsArrangements for circulating gas, e.g. air, within refrigerated spaces for circulating gas, e.g. by natural convection by forced circulation
F25D 21/02 - Detecting the presence of frost or condensate
F25D 21/04 - Preventing the formation of frost or condensate
42 - Scientific, technological and industrial services, research and design
Goods & Services
Heating Ventilation and Air Conditioning (HVAC) systems Consulting services related to the design and layout of mechanical systems and Heating Ventilation and Air Conditioning (HVAC) systems in supermarkets for the purposes of maximizing energy efficiency
