A system and method for controlling indoor climate of a building. The system includes one or more equipment of a heating ventilation and air-conditioning (HVAC) system, a thermostat configured to wirelessly transmit operational data and a controller communicatively coupled to the one or more equipment and the thermostat. The controller includes a communication module configured to exchange the operational data with the thermostat and an equipment interface configured to communicate control signals to the one or more equipment to control operation of the one or more equipment. The controller is configured to receive the operational data wirelessly transmitted from the thermostat using the communication module, determine based on the operational data a control plan to operate the one or more equipment of the HVAC system, and operate the one or more equipment of the HVAC system based on the control plan.
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
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
A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system also includes one or more equipment of a heating ventilation and air-conditioning (HVAC) system, at least one of one or more thermostats or one or more temperature sensors, and a controller. The controller includes a communication module to exchange data with one or more devices and an equipment interface configured to communicate control signals to the one or more equipment. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.
A furnace assembly for use with a gas fuel that includes a cabinet and a burner located in the cabinet that is operable to ignite the gas fuel. The furnace also includes a heat exchanger assembly in communication with the burner and open to receiving the ignited gas fuel, the heat exchanger assembly including tubes. Each tube includes a first section with an inlet, a horizontal section having a first internal diameter, and a vertical section. Each tube also includes a second section extending from the first section and having a second internal diameter less than the first internal dimeter. The second section also includes a serpentine flow path up and down in the vertical direction and an outlet. The gas fuel entering a tube stays in the tube until flowing out of the tube. The furnace also includes a blower operable to move air through the cabinet and over the heat exchanger assembly.
F28D 1/047 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
F24H 3/08 - Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
F28F 1/00 - Tubular elementsAssemblies of tubular elements
F28F 13/08 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
A furnace assembly for use with a gas fuel that includes a cabinet and a burner located in the cabinet that is operable to ignite the gas fuel. The furnace also includes a heat exchanger assembly in communication with the burner and open to receiving the ignited gas fuel, the heat exchanger assembly including tubes. Each tube includes a first section with an inlet, a horizontal section having a first internal diameter, and a vertical section. Each tube also includes a second section extending from the first section and having a second internal diameter less than the first internal dimeter. The second section also includes a serpentine flow path up and down in the vertical direction and an outlet. The gas fuel entering a tube stays in the tube until flowing out of the tube. The furnace also includes a blower operable to move air through the cabinet and over the heat exchanger assembly.
F24D 5/04 - Hot-air central heating systemsExhaust-gas central heating systems operating with discharge of hot air into the space or area to be heated with return of the air to the air heater
F24H 3/08 - Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
F28D 7/08 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
F28D 7/16 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
F28F 13/08 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
5.
SYSTEMS AND METHODS FOR AIR TEMPERATURE CONTROL USING A TARGET TIME BASED CONTROL PLAN
A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system also includes one or more equipment of a heating ventilation and air-conditioning (HVAC) system, at least one of one or more thermostats or one or more temperature sensors, and a controller. The controller includes a communication module to exchange data with one or more devices and an equipment interface configured to communicate control signals to the one or more equipment. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.
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
A heating, ventilation, and air conditioning (HVAC) system, and more particularly a method of detecting and mitigating refrigerant leaks in an HVAC system is disclosed. The HVAC system includes a leak detection system for detecting a leak of the refrigerant from the refrigerant circuit. The leak detection system includes a collection chamber locatable proximate a component of the HVAC system. The leak detection system also includes a sensor assembly including an enclosure comprising a sensor and a fan. The leak detection system also includes a flowline connecting the collection chamber with the sensor assembly such that the sensor assembly may be located away from the collection chamber and the component. The fan is operable to induce fluid flow from the collection chamber into the sensor assembly and the sensor is operable to analyze the fluid flow and detect a leak of the refrigerant from the component.
A heating, ventilation, and air conditioning (HVAC) system includes one or more compressors, one or more outdoor heat exchangers, and one or more indoor heat exchangers. The HVAC system also includes a base pan on which the one or more compressors are mounted. The base pan includes a base level and one or more tier levels higher than the base level. The distance from any point on a perimeter of the first-tier level to a nearest point on a perimeter of the base level is based on the smallest bolt circle diameter of the one or more compressors mounted on the base pan. Also, the perimeter lengths of the tier levels are based on a percentage of the base level perimeter length.
An HVAC system having a fixed orifice expansion device coupled to an evaporator coil is provided. In one embodiment, an expansion device coupled to an evaporator coil includes a flow restrictor and an evaporator inlet manifold. The flow restrictor includes multiple fixed orifices aligned with the refrigerant distribution tubes to restrict flow of refrigerant from the evaporator inlet manifold into the refrigerant distribution tubes through the multiple fixed orifices. Additional systems, devices, and methods are also disclosed.
The present disclosure relates to a heating, ventilation, and air conditioning (“HVAC”) system include a supply damper, a return damper, and a defrost damper which are operable to control a supply airflow, a return airflow, and a defrost airflow to flow between a supply duct, a return duct, and an indoor heat exchanger without substantially flowing into and substantially cooling an indoor space. A reheat coil may also warm the supply air flow and a defrost return line may be used to bypass a bi-flow expansion device and an indoor heat exchanger.
The present invention provides a heating, ventilation, and air-conditioning (HVAC) system using an A2L refrigerant and a method of installing the HVAC system in a building. The HVAC system includes an indoor unit having a heat exchanger that uses an A2L refrigerant, a blower, an outdoor unit, an A2L control board, and one or more A2L sensors configured to detect an amount of A2L refrigerant. In one or more embodiments, the indoor unit is electrically coupled to the blower, the A2L control board, and the outdoor unit. Also, in one or more embodiments, the A2L control board is also electrically coupled to the blower and the one or more A2L sensors.
F24F 11/36 - Responding to malfunctions or emergencies to leakage of heat-exchange fluid
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
An HVAC system is provided. Embodiments of the present disclosure generally relate to heat exchangers having tubing with a reduced diameter compared to traditional systems. In one embodiment, a ducted HVAC system comprises an outdoor heat exchanger with tubing that has an outer diameter of eight millimeters (8 mm) or less and an indoor heat exchanger with tubing that has an outer diameter of nine millimeters (9 mm) or less. Additional systems, devices, and methods are also disclosed.
F24F 3/08 - 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 arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with separate supply and return lines for hot and cold heat-exchange fluids
F24F 1/00 - Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
F24F 3/00 - 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
An HVAC system having a fixed orifice expansion device coupled to an evaporator coil is provided. In one embodiment, an expansion device (116) coupled to an evaporator coil (118) includes a flow restrictor (130, 140, 150, 160, 170, 180, 190) and an evaporator inlet manifold (120). The flow restrictor includes multiple fixed orifices (132, 142, 152, 154, 156, 158, 162, 172, 182, 192) aligned with refrigerant distribution tubes (122) to restrict flow of refrigerant from the evaporator inlet manifold into the refrigerant distribution tubes through the multiple fixed orifices. Additional systems, devices, and methods are also disclosed.
F25B 41/48 - Arrangements for diverging or converging flows, e.g. branch lines or junctions for flow path resistance control on the downstream side of the diverging point, e.g. by an orifice
An HVAC system having a fixed orifice expansion device coupled to an evaporator coil is provided. In one embodiment, an expansion device coupled to an evaporator coil includes a flow restrictor and an evaporator inlet manifold. The flow restrictor includes multiple fixed orifices aligned with the refrigerant distribution tubes to restrict flow of refrigerant from the evaporator inlet manifold into the refrigerant distribution tubes through the multiple fixed orifices. Additional systems, devices, and methods are also disclosed.
An HVAC system having a fixed orifice expansion device coupled to an evaporator coil is provided. In one embodiment, an expansion device (116) coupled to an evaporator coil (118) includes a flow restrictor (130, 140, 150, 160, 170, 180, 190) and an evaporator inlet manifold (120). The flow restrictor includes multiple fixed orifices (132, 142, 152, 154, 156, 158, 162, 172, 182, 192) aligned with refrigerant distribution tubes (122) to restrict flow of refrigerant from the evaporator inlet manifold into the refrigerant distribution tubes through the multiple fixed orifices. Additional systems, devices, and methods are also disclosed.
F25B 41/48 - Arrangements for diverging or converging flows, e.g. branch lines or junctions for flow path resistance control on the downstream side of the diverging point, e.g. by an orifice
An HVAC system with a refrigerant gas sensor is provided. In one embodiment, an HVAC system includes a heat exchanger coil installed within a housing. The heat exchanger coil is operable to exchange heat with air in the housing via a refrigerant passing through the heat exchanger coil. The system also includes an HVAC sensor assembly having a refrigerant gas sensor and a processor installed in a sensor housing. The processor is configured to execute stored instructions to identify an undesirable condition pertaining to the refrigerant gas sensor. The HVAC system may also include a controller to prevent an operation of the HVAC system in response to identification of the undesirable condition pertaining to the refrigerant gas sensor. Additional systems, devices, and methods are also disclosed.
An HVAC system with multiple blowers and a shared motor controller is provided. In one embodiment, an HVAC system includes a first blower (32, 116, 134) installed within a cabinet (102). The first blower has a motor (136) and a fan (138) connected to be driven by the motor of the first blower. The HVAC system further includes a second blower (32, 116, 134) installed within the cabinet. The second blower also includes a motor (136) and a fan (138) connected to be driven by the motor of the second blower. A motor controller (132) is connected to control operation of both the motor of the first blower and the motor of the second blower. Additional systems, devices, and methods are also disclosed.
F24F 3/044 - Systems in which all treatment is given in the central station, i.e. all-air systems
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
F24F 11/89 - Arrangement or mounting of control or safety devices
The present disclosure relates to a heating, ventilation, and air conditioning (“HVAC”) system include a supply damper, a return damper, and a defrost damper which are operable to control a supply airflow, a return airflow, and a defrost airflow to flow between a supply duct, a return duct, and an indoor heat exchanger without substantially flowing into and substantially cooling an indoor space. A reheat coil may also warm the supply air flow and a defrost return line may be used to bypass a bi-flow expansion device and an indoor heat exchanger.
An HVAC with multiple blowers and a shared motor controller is provided. In one embodiment, an HVAC system includes a first blower installed within a cabinet. The first blower has a motor and a fan connected to be driven by the motor of the first blower. The HVAC system further includes a second blower installed within the cabinet. The second blower also includes a motor and a fan connected to be driven by the motor of the second blower. A motor controller is connected to control operation of both the motor of the first blower and the motor of the second blower. Additional systems, devices, and methods are also disclosed.
The present disclosure relates to a multi-circuit heating, ventilation, and air conditioning ("HVAC") system for use with a first refrigerant in a first refrigerant circuit and a second refrigerant in a second refrigerant circuit. The second refrigerant circuit is fluidically isolated from the first refrigerant circuit. Additionally, a first sensor is operable to detect a leak of at least one of the first and second refrigerants or is operable to measure temperature or pressure from the first refrigerant circuit or the second refrigerant. The multi-circuit HVAC system further including a controller programmed to receive the measurement from the sensor to identify the circuit or circuits that are leaking, to turn off operation of the leaking circuit or circuits, and if only one circuit is leaking, operate only the other of the circuits.
The present disclosure relates to a multi-circuit heating, ventilation, and air conditioning (“HVAC”) system for use with a first refrigerant in a first refrigerant circuit and a second refrigerant in a second refrigerant circuit. The second refrigerant circuit is fluidically isolated from the first refrigerant circuit. Additionally, a first sensor is operable to detect a leak of at least one of the first and second refrigerants or is operable to measure temperature or pressure from the first refrigerant circuit or the second refrigerant. The multi-circuit HVAC system further including a controller programmed to receive the measurement from the sensor to identify the circuit or circuits that are leaking, to turn off operation of the leaking circuit or circuits, and if only one circuit is leaking, operate only the other of the circuits.
The present disclosure relates to a heating, ventilation, and air conditioning ("HVAC") system include a supply damper, a return damper, and a defrost damper which are operable to control a supply airflow, a return airflow, and a defrost airflow to flow between a supply duct, a return duct, and an indoor heat exchanger without substantially flowing into and substantially cooling an indoor space. A reheat coil may also warm the supply air flow and a defrost return line may be used to bypass a bi-flow expansion device and an indoor heat exchanger.
An HVAC system with multiple blowers and a shared motor controller is provided. In one embodiment, an HVAC system includes a first blower (32, 116, 134) installed within a cabinet (102). The first blower has a motor (136) and a fan (138) connected to be driven by the motor of the first blower. The HVAC system further includes a second blower (32, 116, 134) installed within the cabinet. The second blower also includes a motor (136) and a fan (138) connected to be driven by the motor of the second blower. A motor controller (132) is connected to control operation of both the motor of the first blower and the motor of the second blower. Additional systems, devices, and methods are also disclosed.
F24F 3/044 - Systems in which all treatment is given in the central station, i.e. all-air systems
F24F 5/00 - Air-conditioning systems or apparatus not covered by group or
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
F24F 11/89 - Arrangement or mounting of control or safety devices
F24F 13/30 - Arrangement or mounting of heat-exchangers
A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system may include a thermostat. The system may also operate without a thermostat. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.
F24F 11/64 - Electronic processing using pre-stored data
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
F24F 11/58 - Remote control using Internet communication
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
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system may include a thermostat. The system may also operate without a thermostat. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
F24F 11/58 - Remote control using Internet communication
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
F24F 11/64 - Electronic processing using pre-stored data
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system may include a thermostat. The system may also operate without a thermostat. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.
F24F 11/64 - Electronic processing using pre-stored data
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
F24F 11/58 - Remote control using Internet communication
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
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
A system and method for controlling indoor climate of a building. The system includes one or more equipment of a heating ventilation and air-conditioning (HVAC) system, a thermostat configured to wirelessly transmit operational data and a controller communicatively coupled to the one or more equipment and the thermostat. The controller includes a communication module configured to exchange the operational data with the thermostat and an equipment interface configured to communicate control signals to the one or more equipment to control operation of the one or more equipment. The controller is configured to receive the operational data wirelessly transmitted from the thermostat using the communication module, determine based on the operational data a control plan to operate the one or more equipment of the HVAC system, and operate the one or more equipment of the HVAC system based on the control plan.
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
A system and method for controlling the air temperature in a building. The system includes one or more equipment of a heating ventilation and air-conditioning (HVAC) system, at least one of one or more thermostats or one or more temperature sensors, and a controller. The controller includes a communication module to exchange data with one or more devices and an equipment interface configured to communicate control signals to the one or more equipment. The controller is configured to obtain as user input a target rate of change (ROC) of air temperature in the building and operate the one or more equipment of the HVAC system to achieve the target ROC. The controller operates the one or more equipment at an initial capacity and adjusts the capacity of the one or more equipment to achieve the target ROC of the air temperature in the building.
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
The present invention provides a system for detecting an amount of A2L refrigerant in an air temperature controller using an A2L refrigerant, and a method of installing a configuration of A2L sensors in the air temperature controller using an A2L refrigerant. The system includes an A2L control board, a first A2L sensor, and a second A2L sensor. The first A2L sensor and the second A2L sensor are coupled in series and electrically coupled to the A2L control board. Each of the first A2L sensor and the second A2L sensor include sensing components configured to detect the amount of A2L refrigerant.
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
An HVAC system with an integrated source of outdoor air is provided. In one embodiment, an HVAC system (10) includes an outdoor unit (16), having a compressor (36) and a heat exchanger (38), and a ventilation unit (26) to receive and provide outdoor air to a structure (12, 120). The ventilation unit has a blower (60), a dehumidifying coil (62), and a reheat coil (64) installed in a housing (70). The HVAC system also includes a first electronic expansion valve (84) coupled outside the housing of the ventilation unit to control refrigerant flow into the dehumidifying coil and a second electronic expansion valve (84) coupled outside the housing of the ventilation unit to control refrigerant flow into the reheat coil. An electronic expansion valve controller (90) is connected to control operation of the first electronic expansion valve and the second electronic expansion valve. Additional systems, devices, and methods are also disclosed.
F24F 3/06 - 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 arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
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 3/153 - 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 with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
F24F 7/06 - Ventilation with ducting systems with forced air circulation, e.g. by fan
F24F 11/65 - Electronic processing for selecting an operating mode
F25B 41/34 - Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
An HVAC system with an integrated source of outdoor air is provided. In one embodiment, an HVAC system includes an outdoor unit, having a compressor and a heat exchanger, and a ventilation unit to receive and provide outdoor air to a structure. The ventilation unit has a blower, a dehumidifying coil, and a reheat coil installed in a housing. The HVAC system also includes a first electronic expansion valve coupled outside the housing of the ventilation unit to control refrigerant flow into the dehumidifying coil and a second electronic expansion valve coupled outside the housing of the ventilation unit to control refrigerant flow into the reheat coil. An electronic expansion valve controller is connected to control operation of the first electronic expansion valve and the second electronic expansion valve. Additional systems, devices, and methods are also disclosed.
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
F24F 11/32 - Responding to malfunctions or emergencies
F24F 11/58 - Remote control using Internet communication
34.
Systems and methods for air temperature control including R-32 sensors
The present invention provides a system for detecting an amount of R-32 refrigerant in an air temperature controller using an R-32 refrigerant, and a method of installing a configuration of R-32 sensors in the air temperature controller using an R-32 refrigerant. The system includes an R-32 control board, a first R-32 sensor, and a second R-32 sensor. The first R-32 sensor and the second R-32 sensor are coupled in series and electrically coupled to the R-32 control board. Each of the first R-32 sensor and the second R-32 sensor include sensing components configured to detect the amount of R-32 refrigerant.
F24F 11/36 - Responding to malfunctions or emergencies to leakage of heat-exchange fluid
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 heating, ventilation, and air-conditioning (HVAC) system that includes an outdoor heat exchanger (HX) and outdoor fans. The outdoor fans are arranged in either an in-line configuration or a staggered configuration to satisfy one or more requirements to optimize the airflow across the outdoor HXs.
F24F 1/0287 - 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 with vertically arranged fan axis
F24F 1/029 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by the layout or mutual arrangement of components, e.g. of compressors or fans
F24F 1/022 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
F24F 11/86 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
F24F 11/871 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
36.
MULTIPLE FAN HVAC SYSTEM WITH OPTIMIZED FAN LOCATION
A heating, ventilation, and air-conditioning (HVAC) system that includes an outdoor heat exchanger (HX) and outdoor fans. The outdoor fans are arranged in either an in-line configuration or a staggered configuration to satisfy one or more requirements to optimize the airflow across the outdoor HXs.
F24F 1/022 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
F24F 1/0287 - 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 with vertically arranged fan axis
F24F 1/029 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by the layout or mutual arrangement of components, e.g. of compressors or fans
F24F 1/0323 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by heat exchangers by the mounting or arrangement of the heat exchangers
37.
MULTIPLE FAN HVAC SYSTEM WITH OPTIMIZED FAN LOCATION
A heating, ventilation, and air-conditioning (HVAC) system that includes an outdoor heat exchanger (HX) and outdoor fans. The outdoor fans are arranged in either an in-line configuration or a staggered configuration to satisfy one or more requirements to optimize the airflow across the outdoor HXs.
F24F 1/022 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
F24F 1/0287 - 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 with vertically arranged fan axis
F24F 1/029 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by the layout or mutual arrangement of components, e.g. of compressors or fans
F24F 11/86 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
F24F 11/871 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
38.
MULTIPLE FAN HVAC SYSTEM WITH OPTIMIZED FAN LOCATION
A heating, ventilation, and air-conditioning (HVAC) system that includes an outdoor heat exchanger (HX) and outdoor fans. The outdoor fans are arranged in either an in-line configuration or a staggered configuration to satisfy one or more requirements to optimize the airflow across the outdoor HXs.
F24F 1/0287 - 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 with vertically arranged fan axis
F24F 1/029 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by the layout or mutual arrangement of components, e.g. of compressors or fans
F24F 1/022 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
F24F 1/0323 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by heat exchangers by the mounting or arrangement of the heat exchangers
39.
Multiple fan HVAC system with optimized fan location
A heating, ventilation, and air-conditioning (HVAC) system that includes an outdoor heat exchanger (HX) and outdoor fans. The outdoor fans are arranged in either an in-line configuration or a staggered configuration to satisfy one or more requirements to optimize the airflow across the outdoor HXs.
A heating, ventilation, and air-conditioning (HVAC) system that includes an outdoor heat exchanger (HX) and outdoor fans. The outdoor fans are arranged in either an in-line configuration or a staggered configuration to satisfy one or more requirements to optimize the airflow across the outdoor HXs.
A furnace assembly for use with a gas fuel that includes a cabinet and a burner located in the cabinet that is operable to ignite the gas fuel. The furnace also includes a heat exchanger assembly in communication with the burner and open to receiving the ignited gas fuel, the heat exchanger assembly including tubes. Each tube includes a first section with an inlet, a horizontal section having a first internal diameter, and a vertical section. Each tube also includes a second section extending from the first section and having a second internal diameter less than the first internal dimeter. The second section also includes a serpentine flow path up and down in the vertical direction and an outlet. The gas fuel entering a tube stays in the tube until flowing out of the tube. The furnace also includes a blower operable to move air through the cabinet and over the heat exchanger assembly.
F24H 3/08 - Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
F28D 7/08 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
F28D 7/16 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
F28F 13/08 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
F24D 5/04 - Hot-air central heating systemsExhaust-gas central heating systems operating with discharge of hot air into the space or area to be heated with return of the air to the air heater
42.
SYSTEM WITH LEAK DETECTION FOR DETECTING REFRIGERANT LEAK
The present disclosure relates to a heating, ventilation, and air conditioning (HVAC) system, and more particularly a method of detecting and mitigating refrigerant leaks in an HVAC system. The HVAC system includes a leak detection system for detecting a leak of the refrigerant from the refrigerant circuit. The leak detection system includes a collection chamber locatable proximate a component of the HVAC system. The leak detection system also includes a sensor assembly including an enclosure comprising a sensor and a fan. The leak detection system also includes a flowline connecting the collection chamber with the sensor assembly such that the sensor assembly may be located away from the collection chamber and the component. The fan is operable to induce fluid flow from the collection chamber into the sensor assembly and the sensor is operable to analyze the fluid flow and detect a leak of the refrigerant from the component.
F25B 49/00 - Arrangement or mounting of control or safety devices
F24F 11/36 - Responding to malfunctions or emergencies to leakage of heat-exchange fluid
G01M 3/18 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for valves
43.
SYSTEM WITH LEAK DETECTION FOR DETECTING REFRIGERANT LEAK
The present disclosure relates to a heating, ventilation, and air conditioning (HVAC) system, and more particularly a method of detecting and mitigating refrigerant leaks in an HVAC system. The HVAC system includes a leak detection system for de¬ tecting a leak of the refrigerant from the refrigerant circuit. The leak detection system includes a collection chamber locatable proximate a component of the HVAC system. The leak detection system also includes a sensor assembly including an enclosure comprising a sensor and a fan. The leak detection system also includes a flowline connecting the collection chamber with the sensor assembly such that the sensor assembly may be located away from the collection chamber and the component. The fan is operable to induce fluid flow from the collection chamber into the sensor assembly and the sensor is operable to analyze the fluid flow and detect a leak of the refrigerant from the component.
F24F 11/36 - Responding to malfunctions or emergencies to leakage of heat-exchange fluid
F25B 49/00 - Arrangement or mounting of control or safety devices
G01M 3/18 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for valves
44.
System with leak detection for detecting refrigerant leak
A heating, ventilation, and air conditioning (HVAC) system, and more particularly a method of detecting and mitigating refrigerant leaks in an HVAC system is disclosed. The HVAC system includes a leak detection system for detecting a leak of the refrigerant from the refrigerant circuit. The leak detection system includes a collection chamber locatable proximate a component of the HVAC system. The leak detection system also includes a sensor assembly including an enclosure comprising a sensor and a fan. The leak detection system also includes a flowline connecting the collection chamber with the sensor assembly such that the sensor assembly may be located away from the collection chamber and the component. The fan is operable to induce fluid flow from the collection chamber into the sensor assembly and the sensor is operable to analyze the fluid flow and detect a leak of the refrigerant from the component.
A furnace assembly for use with a gas fuel that includes a cabinet and a burner located in the cabinet that is operable to ignite the gas fuel. The furnace also includes a heat exchanger assembly in communication with the burner and open to receiving the ignited gas fuel, the heat exchanger assembly including tubes. Each tube includes a first section with an inlet, a horizontal section having a first internal diameter, and a vertical section. Each tube also includes a second section extending from the first section and having a second internal diameter less than the first internal dimeter. The second section also includes a serpentine flow path up and down in the vertical direction and an outlet. The gas fuel entering a tube stays in the tube until flowing out of the tube. The furnace also includes a blower operable to move air through the cabinet and over the heat exchanger assembly.
F28D 1/047 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
F24H 3/08 - Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
F28F 1/00 - Tubular elementsAssemblies of tubular elements
F28F 13/08 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
46.
HEAT EXCHANGER ASSEMBLY AND METHOD FOR HVAC SYSTEM
An HVAC heat exchanger with an array of tubes including one or more dead tubes is provided. In one embodiment, the heat exchanger is a microchannel heat exchanger operable to exchange heat with air in an HVAC system via refrigerant passing through the microchannel heat exchanger. The microchannel heat exchanger includes an array of flat tubes arranged between a first manifold and a second manifold. The array of flat tubes includes multiple tubes coupled in fluid communication with the first manifold and the second manifold to convey refrigerant between the first manifold and the second manifold through microchannels of the multiple tubes. The array of flat tubes also includes one or more dead tubes that do not convey refrigerant between the first manifold and the second manifold. Additional systems, devices, and methods are also disclosed.
F28D 7/16 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
F28D 1/047 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
F28D 7/00 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes
F28F 1/42 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
An HVAC heat exchanger with an array of tubes including one or more dead tubes is provided. In one embodiment, the heat exchanger is a microchannel heat exchanger (120) operable to exchange heat with air in an HVAC system (10, 100) via refrigerant passing through the microchannel heat exchanger. The microchannel heat exchanger includes an array (122) of flat tubes (134) arranged between a first manifold (124) and a second manifold (126). The array of flat tubes includes multiple tubes coupled in fluid communication with the first manifold and the second manifold to convey refrigerant between the first manifold and the second manifold through microchannels of the multiple tubes. The array of flat tubes also includes one or more dead tubes (182, 192, 194, 196, 202, 206) that do not convey refrigerant between the first manifold and the second manifold. Additional systems, devices, and methods are also disclosed.
F24F 3/08 - 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 arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with separate supply and return lines for hot and cold heat-exchange fluids
F24F 1/14 - Heat exchangers specially adapted for separate outdoor units
F28F 1/02 - Tubular elements of cross-section which is non-circular
An HVAC system is provided. Embodiments of the present disclosure generally relate to heat exchangers having tubing with a reduced diameter compared to traditional systems. In one embodiment, a ducted HVAC system comprises an outdoor heat exchanger with tubing that has an outer diameter of eight millimeters (8 mm) or less and an indoor heat exchanger with tubing that has an outer diameter of nine millimeters (9 mm) or less. Additional systems, devices, and methods are also disclosed.
F24F 3/08 - 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 arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with separate supply and return lines for hot and cold heat-exchange fluids
F24F 1/00 - Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
F24F 3/00 - 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
A reversible heat pump system with one bi-flow expansion device. A four-way valve in the refrigerant circuit may be configured in either a cooling mode or a heating mode. In the cooling mode, a compressor is operable to flow a refrigerant out a compressor outlet and through the bi-flow expansion device in a first direction. In the heating mode, the compressor is operable to flow the refrigerant out the compressor outlet and through the bi-flow expansion device in a second direction, opposite the first direction. Thus, only one thermal expansion device is needed for a reversible heat pump heating, ventilation, and air conditioning (HVAC) system without the need for bypass lines and check valves around the bi-flow expansion device. Further, if an accumulator is included before the compressor, the bi-flow expansion device may be controlled to store at least some refrigerant in the accumulator, thus allowing the evaporator superheat to be lower than if the accumulator were not used.
A reversible heat pump system with one bi-flow expansion device. A four-way valve in the refrigerant circuit may be configured in either a cooling mode or a heating mode. In the cooling mode, a compressor is operable to flow a refrigerant out a compressor outlet and through the bi-flow expansion device in a first direction. In the heating mode, the compressor is operable to flow the refrigerant out the compressor outlet and through the bi-flow expansion device in a second direction, opposite the first direction. Thus, only one thermal expansion device is needed for a reversible heat pump heating, ventilation, and air conditioning (HVAC) system without the need for bypass lines and check valves around the bi-flow expansion device. Further, if an accumulator is included before the compressor, the bi-flow expansion device may be controlled to store at least some refrigerant in the accumulator, thus allowing the evaporator superheat to be lower than if the accumulator were not used.
An HVAC system with a refrigerant gas sensor is provided. In one embodiment, an HVAC system includes a heat exchanger coil installed within a housing. The heat exchanger coil is operable to exchange heat with air in the housing via a refrigerant passing through the heat exchanger coil. The system also includes an HVAC sensor assembly installed within the housing. The HVAC sensor assembly includes a refrigerant gas sensor and an orientation sensor positioned to detect an orientation of the refrigerant gas sensor. The HVAC system may also or instead include a position sensor to detect the position of the refrigerant gas sensor within the system. Additional systems, devices, and methods are also disclosed.
A heating, ventilation, and air conditioning (HVAC) system includes one or more compressors, one or more outdoor heat exchangers, and one or more indoor heat exchangers. The HVAC system also includes a base pan on which the one or more compressors are mounted. The base pan includes a base level and one or more tier levels higher than the base level. The distance from any point on a perimeter of the first-tier level to a nearest point on a perimeter of the base level is based on the smallest bolt circle diameter of the one or more compressors mounted on the base pan. Also, the perimeter lengths of the tier levels are based on a percentage of the base level perimeter length.
F24F 1/022 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
A heating, ventilation, and air conditioning (HVAC) system includes one or more compressors, one or more outdoor heat exchangers, and one or more indoor heat exchangers. The HVAC system also includes a base pan on which the one or more compressors are mounted. The base pan includes a base level and one or more tier levels higher than the base level. The distance from any point on a perimeter of the first-tier level to a nearest point on a perimeter of the base level is based on the smallest bolt circle diameter of the one or more compressors mounted on the base pan. Also, the perimeter lengths of the tier levels are based on a percentage of the base level perimeter length.
A heating, ventilation, and air conditioning (HVAC) system includes one or more compressors, one or more outdoor heat exchangers, and one or more indoor heat exchangers. The HVAC system also includes a base pan on which the one or more compressors are mounted. The base pan includes a base level and one or more tier levels higher than the base level. The distance from any point on a perimeter of the first-tier level to a nearest point on a perimeter of the base level is based on the smallest bolt circle diameter of the one or more compressors mounted on the base pan. Also, the perimeter lengths of the tier levels are based on a percentage of the base level perimeter length.
F24F 1/022 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
The present invention provides a heating, ventilation, and air-conditioning (HVAC) system using an A2L refrigerant and a method of installing the HVAC system in a building. The HVAC system includes an indoor unit having a heat exchanger that uses an A2L refrigerant, a blower, an outdoor unit, an A2L control board, and one or more A2L sensors configured to detect an amount of A2L refrigerant. In one or more embodiments, the indoor unit is electrically coupled to the blower, the A2L control board, and the outdoor unit. Also, in one or more embodiments, the A2L control board is also electrically coupled to the blower and the one or more A2L sensors.
F24F 11/36 - Responding to malfunctions or emergencies to leakage of heat-exchange fluid
F24F 11/52 - Indication arrangements, e.g. displays
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
The present invention provides a system for detecting an amount of R-32 refrigerant in an air temperature controller using an R-32 refrigerant, and a method of installing a configuration of R-32 sensors in the air temperature controller using an R-32 refrigerant. The system includes an R-32 control board, a first R-32 sensor, and a second R-32 sensor. The first R-32 sensor and the second R-32 sensor are coupled in series and electrically coupled to the R-32 control board. Each of the first R-32 sensor and the second R-32 sensor include sensing components configured to detect the amount of R-32 refrigerant.
F24F 11/36 - Responding to malfunctions or emergencies to leakage of heat-exchange fluid
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
The present invention provides a system for detecting an amount of R-454b refrigerant in an air temperature controller using an R-454b refrigerant, and a method of installing a configuration of R-454b sensors in the air temperature controller using an R-454b refrigerant. The system includes an R-454b control board, a first R-454b sensor, and a second R-454b sensor. The first R-454b sensor and the second R-454b sensor are coupled in series and electrically coupled to the R-454b control board. Each of the first R-454b sensor and the second R-454b sensor include sensing components configured to detect the amount of R-454b refrigerant.
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
The present invention provides a system for detecting an amount of A2L refrigerant in an air temperature controller using an A2L refrigerant, and a method of installing a configuration of A2L sensors in the air temperature controller using an A2L refrigerant. The system includes an A2L control board, a first A2L sensor, and a second A2L sensor. The first A2L sensor and the second A2L sensor are coupled in series and electrically coupled to the A2L control board. Each of the first A2L sensor and the second A2L sensor include sensing components configured to detect the amount of A2L refrigerant.
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
F25B 9/00 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups
F24F 110/65 - Concentration of specific substances or contaminants
59.
SYSTEMS AND METHODS FOR AIR TEMPERATURE CONTROL INCLUDING R-32 SENSORS
The present invention provides a system for detecting an amount of R-32 refrigerant in an air temperature controller using an R-32 refrigerant, and a method of installing a configuration of R-32 sensors in the air temperature controller using an R-32 refrigerant. The system includes an R-32 control board, a first R-32 sensor, and a second R-32 sensor. The first R-32 sensor and the second R-32 sensor are coupled in series and electrically coupled to the R-32 control board. Each of the first R-32 sensor and the second R-32 sensor include sensing components configured to detect the amount of R-32 refrigerant.
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
F25B 9/00 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups
F24F 110/65 - Concentration of specific substances or contaminants
60.
SYSTEMS AND METHODS FOR AIR TEMPERATURE CONTROL USING A2L REFRIGERANTS
The present invention provides a heating, ventilation, and air-conditioning (HVAC) system using an A2L refrigerant and a method of installing the HVAC system in a building. The HVAC system includes an indoor unit having a heat exchanger that uses an A2L refrigerant, a blower, an outdoor unit, an A2L control board, and one or more A2L sensors configured to detect an amount of A2L refrigerant. In one or more embodiments, the indoor unit is electrically coupled to the blower, the A2L control board, and the outdoor unit. Also, in one or more embodiments, the A2L control board is also electrically coupled to the blower and the one or more A2L sensors.
F24F 11/36 - Responding to malfunctions or emergencies to leakage of heat-exchange fluid
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
The present invention provides a system for detecting an amount of A2L refrigerant in an air temperature controller using an A2L refrigerant, and a method of installing a configuration of A2L sensors in the air temperature controller using an A2L refrigerant. The system includes an A2L control board, a first A2L sensor, and a second A2L sensor. The first A2L sensor and the second A2L sensor are coupled in series and electrically coupled to the A2L control board. Each of the first A2L sensor and the second A2L sensor include sensing components configured to detect the amount of A2L refrigerant.
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
F25B 9/00 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups
F24F 110/65 - Concentration of specific substances or contaminants
62.
SYSTEMS AND METHODS FOR AIR TEMPERATURE CONTROL INCLUDING A2L SENSORS
The present invention provides a system for detecting an amount of A2L refrigerant in an air temperature controller using an A2L refrigerant, and a method of installing a configuration of A2L sensors in the air temperature controller using an A2L refrigerant. The system includes an A2L control board, a first A2L sensor, and a second A2L sensor. The first A2L sensor and the second A2L sensor are coupled in series and electrically coupled to the A2L control board. Each of the first A2L sensor and the second A2L sensor include sensing components configured to detect the amount of A2L refrigerant.
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 11/89 - Arrangement or mounting of control or safety devices
63.
SYSTEMS AND METHODS FOR AIR TEMPERATURE CONTROL INCLUDING R-32 SENSORS
The present invention provides a system for detecting an amount of R-32 refrigerant in an air temperature controller using an R-32 refrigerant, and a method of installing a configuration of R-32 sensors in the air temperature controller using an R-32 refrigerant. The system includes an R-32 control board, a first R-32 sensor, and a second R-32 sensor. The first R-32 sensor and the second R-32 sensor are coupled in series and electrically coupled to the R-32 control board. Each of the first R-32 sensor and the second R-32 sensor include sensing components configured to detect the amount of R-32 refrigerant.
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 11/89 - Arrangement or mounting of control or safety devices
64.
SYSTEMS AND METHODS FOR AIR TEMPERATURE CONTROL INCLUDING R-454B SENSORS
The present invention provides a system for detecting an amount of A2L refrigerant in an air temperature controller using an A2L refrigerant, and a method of installing a configuration of A2L sensors in the air temperature controller using an A2L refrigerant. The system includes an A2L control board, a first A2L sensor, and a second A2L sensor. The first A2L sensor and the second A2L sensor are coupled in series and electrically coupled to the A2L control board. Each of the first A2L sensor and the second A2L sensor include sensing components configured to detect the amount of A2L refrigerant.
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 11/89 - Arrangement or mounting of control or safety devices
65.
Systems and methods for air temperature control using A2L refrigerants
The present invention provides a heating, ventilation, and air-conditioning (HVAC) system using an A2L refrigerant and a method of installing the HVAC system in a building. The HVAC system includes an indoor unit having a heat exchanger that uses an A2L refrigerant, a blower, an outdoor unit, an A2L control board, and one or more A2L sensors configured to detect an amount of A2L refrigerant. In one or more embodiments, the indoor unit is electrically coupled to the blower, the A2L control board, and the outdoor unit. Also, in one or more embodiments, the A2L control board is also electrically coupled to the blower and the one or more A2L sensors.
F24F 11/36 - Responding to malfunctions or emergencies to leakage of heat-exchange fluid
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
The present invention provides a system for detecting an amount of A2L refrigerant in an air temperature controller using an A2L refrigerant, and a method of installing a configuration of A2L sensors in the air temperature controller using an A2L refrigerant. The system includes an A2L control board, a first A2L sensor, and a second A2L sensor. The first A2L sensor and the second A2L sensor are coupled in series and electrically coupled to the A2L control board. Each of the first A2L sensor and the second A2L sensor include sensing components configured to detect the amount of A2L refrigerant.
F24F 11/89 - Arrangement or mounting of control or safety devices
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
A system and method for controlling indoor climate of a building. The system includes one or more equipment of a heating ventilation and air-conditioning (HVAC) system, a thermostat configured to wirelessly transmit operational data and a controller communicatively coupled to the one or more equipment and the thermostat. The controller includes a communication module configured to exchange the operational data with the thermostat and an equipment interface configured to communicate control signals to the one or more equipment to control operation of the one or more equipment. The controller is configured to receive the operational data wirelessly transmitted from the thermostat using the communication module, determine based on the operational data a control plan to operate the one or more equipment of the HVAC system, and operate the one or more equipment of the HVAC system based on the control plan.
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
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
68.
SYSTEMS AND METHODS FOR CONTROLLING RATE OF CHANGE OF AIR TEMPERATURE IN A BUILDING
A system and method for controlling the air temperature in a building. The system includes one or more equipment of a heating ventilation and air-conditioning (HVAC) system, at least one of one or more thermostats or one or more temperature sensors, and a controller. The controller includes a communication module to exchange data with one or more devices and an equipment interface configured to communicate control signals to the one or more equipment. The controller is configured to obtain as user input a target rate of change (ROC) of air temperature in the building and operate the one or more equipment of the HVAC system to achieve the target ROC. The controller operates the one or more equipment at an initial capacity and adjusts the capacity of the one or more equipment to achieve the target ROC of the air temperature in the building.
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
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
69.
SYSTEMS AND METHODS FOR CONTROLLING RATE OF CHANGE OF AIR TEMPERATURE IN A BUILDING
A system and method for controlling the air temperature in a building. The system includes one or more equipment of a heating ventilation and air-conditioning (HVAC) system, at least one of one or more thermostats or one or more temperature sensors, and a controller. The controller includes a communication module to exchange data with one or more devices and an equipment interface configured to communicate control signals to the one or more equipment. The controller is configured to obtain as user input a target rate of change (ROC) of air temperature in the building and operate the one or more equipment of the HVAC system to achieve the target ROC. The controller operates the one or more equipment at an initial capacity and adjusts the capacity of the one or more equipment to achieve the target ROC of the air temperature in the building.
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
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
70.
SYSTEMS AND METHODS FOR CONTROLLING A HEATING AND AIR-CONDITIONING (HVAC) SYSTEM
A system and method for controlling indoor climate of a building. The system includes one or more equipment of a heating ventilation and air-conditioning (HVAC) system, a thermostat configured to wirelessly transmit operational data and a controller communicatively coupled to the one or more equipment and the thermostat. The controller includes a communication module configured to exchange the operational data with the thermostat and an equipment interface configured to communicate control signals to the one or more equipment to control operation of the one or more equipment. The controller is configured to receive the operational data wirelessly transmitted from the thermostat using the communication module, determine based on the operational data a control plan to operate the one or more equipment of the HVAC system, and operate the one or more equipment of the HVAC system based on the control plan.
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
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
71.
System for controlling target air temperature in a target time in a building
A system for controlling the air temperature of a building using a control plan based on a target time. The system includes one or more temperature sensors, an indoor HVAC unit, an outdoor HVAC unit, and a controller. The controller is incorporated into one of the indoor HVAC unit or the outdoor HVAC unit. Further, the controller is communicatively coupled to the indoor HVAC unit, the outdoor HVAC unit, and the one or more temperature sensors. Furthermore, the controller is configured to selectively operate the indoor HVAC unit in accordance with a temperature control plan to reach a target air temperature at the one or more temperature sensors in a target time.
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
Residential ductless heating, ventilation, and air conditioning (HVAC) units that provide variable refrigerant flow; mini-split air conditioners and heat pumps with refrigerant
Heating, ventilation, and air conditioning (HVAC) equipment, namely, variable refrigerant flow air conditioners, air conditioning units, and heat pumps
74.
System and method for controlling target air temperature in a target time in a building
A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system may include a thermostat. The system may also operate without a thermostat. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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
F24F 11/64 - Electronic processing using pre-stored data
F24F 11/58 - Remote control using Internet communication
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system may include a thermostat. The system may also operate without a thermostat. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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
F24F 11/64 - Electronic processing using pre-stored data
F24F 11/58 - Remote control using Internet communication
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system may include a thermostat. The system may also operate without a thermostat. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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
F24F 11/64 - Electronic processing using pre-stored data
F24F 11/58 - Remote control using Internet communication
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
A system and method for controlling the air temperature in a building. The system includes one or more equipment of a heating ventilation and air-conditioning (HVAC) system, at least one of one or more thermostats or one or more temperature sensors, and a controller. The controller includes a communication module to exchange data with one or more devices and an equipment interface configured to communicate control signals to the one or more equipment. The controller is configured to obtain as user input a target rate of change (ROC) of air temperature in the building and operate the one or more equipment of the HVAC system to achieve the target ROC. The controller operates the one or more equipment at an initial capacity and adjusts the capacity of the one or more equipment to achieve the target ROC of the air temperature in the building.
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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
A system and method for controlling indoor climate of a building. The system includes one or more equipment of a heating ventilation and air-conditioning (HVAC) system, a thermostat configured to wirelessly transmit operational data and a controller communicatively coupled to the one or more equipment and the thermostat. The controller includes a communication module configured to exchange the operational data with the thermostat and an equipment interface configured to communicate control signals to the one or more equipment to control operation of the one or more equipment. The controller is configured to receive the operational data wirelessly transmitted from the thermostat using the communication module, determine based on the operational data a control plan to operate the one or more equipment of the HVAC system, and operate the one or more equipment of the HVAC system based on the control plan.
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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
An authentication method and system for an HVAC system are provided. Embodiments of the present disclosure generally relate to an access-control or authentication system for an HVAC system, in which access to certain functions of the HVAC system is conditioned on a user performing certain basic operational instructions for the HVAC system in a provided sequence, thereby providing evidence that the user has authorization to access and operate the HVAC system wirelessly.
An authentication method and system for an HVAC system are provided. Embodiments of the present disclosure generally relate to an access-control or authentication system for an HVAC system, in which access to certain functions of the HVAC system is conditioned on a user performing certain basic operational instructions for the HVAC system in a provided sequence, thereby providing evidence that the user has authorization to access and operate the HVAC system wirelessly.
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
An authentication method and system for an HVAC system are provided. Embodiments of the present disclosure generally relate to an access-control or authentication system for an HVAC system, in which access to certain functions of the HVAC system is conditioned on a user performing certain basic operational instructions for the HVAC system in a provided sequence, thereby providing evidence that the user has authorization to access and operate the HVAC system wirelessly.
A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system may include a thermostat. The system may also operate without a thermostat. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
A gas furnace is provided. Embodiments of the present disclosure generally relate to a gas furnace operated such that the flame temperature is maximized by ensuring operation at or near stoichiometric conditions. Additional systems, devices, and methods are also disclosed.
F24H 3/08 - Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
F24F 7/06 - Ventilation with ducting systems with forced air circulation, e.g. by fan
F24F 13/30 - Arrangement or mounting of heat-exchangers
A gas furnace is provided. Embodiments of the present disclosure generally relate to a gas furnace operated such that the flame temperature is maximized by ensuring operation at or near stoichiometric conditions. Additional systems, devices, and methods are also disclosed.
F24H 9/00 - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL Details
F24H 3/06 - Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
Air conditioning and heating equipment, namely, air conditioners and furnaces; and parts and accessories therefor, namely, evaporator coils and air handlers
09 - Scientific and electric apparatus and instruments
Goods & Services
Remote controllers for heating, ventilation and cooling (HVAC) devices, both wireless and wired; climate control systems consisting of digital thermostats, air conditioning, heating, ventilation and drying control devices; thermostats; software applications for controlling HVAC devices; HVAC device monitors, namely, electronic monitors for monitoring air conditioning, heating, ventilation and drying devices; HVAC device sensors for sensing condition regarding air conditioning, heating, ventilation and drying devices
Air filtration devices, namely, air purifiers, air re-circulators; indoor-air quality (IAQ) devices and filters, namely, air filters, particle filters, humidifiers, dehumidifiers, for use in heating, ventilating, and air conditioning operations; heating, ventilation, and cooling (HVAC) devices, namely, air conditioners, heat pumps, and furnaces; all of the foregoing for the sensing, treatment, filtration or conditioning of indoor air for breating or comfort
A tubular burner and methods of use in a furnace having reduced NOx emissions are provided. The tubular burner comprises a structural skeleton and a mesh screen disposed about the structural skeleton. The structural skeleton may be coupled to an air/fuel mixture source. The structural skeleton may comprise a hollow interior and a plurality of perforations to allow the air/fuel mixture to pass from the interior of the structural skeleton to the exterior. The burner systems may further comprise a plurality of holes spaced along and between the burners for cross-lighting of multiple burners using a single igniter.
x emissions are provided. The tubular burner comprises a structural skeleton and a mesh screen disposed about the structural skeleton. The structural skeleton may be coupled to an air/fuel mixture source. The structural skeleton may comprise a hollow interior and a plurality of perforations to allow the air/fuel mixture to pass from the interior of the structural skeleton to the exterior. The burner systems may further comprise a plurality of holes spaced along and between the burners for cross-lighting of multiple burners using a single igniter.
A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system also includes one or more equipment of a heating ventilation and air-conditioning (HVAC) system, at least one of one or more thermostats or one or more temperature sensors, and a controller. The controller includes a communication module to exchange data with one or more devices and an equipment interface configured to communicate control signals to the one or more equipment. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.
A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system may include a thermostat. The system may also operate without a thermostat. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.
G05B 15/02 - Systems controlled by a computer electric
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
A system and method for controlling the air temperature of a building using a control plan based on a target time. The system includes a controller which may be connected to a number of indoor and outdoor heating ventilation and air-conditioning units. The system may include a thermostat. The system may also operate without a thermostat. The method includes determining a control plan to reach a desired temperature in a target time. The method also includes updating the plan by comparing the actual time to reach the desired temperature with the target time.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
(1) Repair parts for heating and air conditioning equipment, namely, motors and parts for motors including belts and blades
(2) Electric components in the nature of repair parts for heating and air conditioning equipment, namely, relays, contactors, capacitors, transformers, and switches
(3) Repair parts for heating and air conditioning equipment, namely, electric igniters for furnaces, evaporator coils, air handlers, and filter driers
09 - Scientific and electric apparatus and instruments
Goods & Services
Electric components in the nature of repair parts for heating and air conditioning equipment, namely, relays, contactors, capacitors, transformers, and switches
