Devices and methods for mixing fuel and air are presented. A device may include an air pipe extending within a firing tube configured to receive a flow of air; and a plurality of fuel pipes extending within the firing tube in parallel with one another and with the air pipe and configured to receive a flow of fuel; wherein the air pipe includes first apertures configured to release the air from inside the air pipe radially outward from the air pipe, the first apertures arranged around a circumference of the air pipe, and wherein a first fuel pipe of the plurality of fuel pipes includes second apertures configured to release the fuel from inside the first fuel pipe radially outward from the first fuel pipe, the second apertures arranged around a circumference of the first fuel pipe.
F23D 14/10 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with elongated tubular burner head
F23D 14/08 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with axial outlets at the burner head
F23D 14/02 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
Systems, methods, and apparatuses for heating water are provided herein. A water heating system is disclosed, which includes a burner, a vapor-compression cycle system, and a water line in communication with the burner and the vapor-compression cycle system. The water heating system may be a tankless, or on demand, water heating system. Water within the water line may be initially heated by the vapor-compression cycle system before the water enters the burner. In this manner, the water may be preheated using the vapor-compression cycle system before the water is further heated by the burner.
F24D 3/08 - Hot-water central heating systems in combination with systems for domestic hot-water supply
F24D 3/18 - Hot-water central heating systems using heat pumps
F24H 1/16 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled
F24H 9/00 - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL - Details
The disclosed technology includes devices and systems for heat pump water heater systems. The disclosed technology can include a heat pump water heater having a first housing configured to encase a fluid reservoir and a condenser of a heat pump system. The heat pump water heater can include a second housing attached to the first housing and configured to encase a compressor of the heat pump system, an evaporator of the heat pump system, a fan of the heat pump system, and a drain pan configured to receive and support at least the compressor, the evaporator, and the fan. The drain pan can be configured to collect moisture within the second housing and drain the moisture from the heat pump water heater.
ABSTRACT The present disclosure provides an air handler having a cabinet and a plurality of refrigerant tubes, where each refrigerant tube has a diameter of 7 mm. The air handler includes a V-shaped round tube plate fin heat exchanger disposed within the cabinet and including a plurality of louvered fins. Each louvered fin defines a plurality of holes configured to receive the refrigerant tubes. The plurality of holes defines a linear offset configuration of the louvered fin. The air handler further includes an axial fan housing disposed within the cabinet and located downstream of the V-shaped round tube plate fin heat exchanger, a distributor in fluid communication with the refrigerant tubes, and a plurality of feeder tubes extending between the distributor and the refrigerant tubes. Each feeder tube is configured to allow flow of refrigerant therethrough.
F28D 1/04 - 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 mo with the heat-exchange conduits immersed in the body of fluid with tubular conduits
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 mo 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 1/02 - 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 mo with the heat-exchange conduits immersed in the body of fluid
F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
F28F 1/32 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
An embossed head for an end of a tank is disclosed. The embossed head can include one or more embossed features. The embossed feature(s) can extend generally upward or generally downward. The embossed features(s) can include an annular emboss. The embossed head can provide similar resistance to deformation as traditional heads while requiring less material as compared to such traditional heads
The disclosed technology includes a system comprising a heat pump, a bottle filing station, and a hand washing station. The heat pump can include a compressor, a condenser, an expansion valve, and an evaporator. The evaporator can be configured to cool water to be supplied to the bottle filling station, and the condenser can be configured to heat water to be supplied to the hand washing station and/or the bottle filling station.
A gas flow adjustment device that includes a housing defining a first opening configured to receive gas and a second opening aligned with the first opening. The second opening is configured to deliver the gas from the housing. The device includes a circular plate rotatably disposed in the housing. The circular plate defines a cutout selectively aligned with each of the first opening and the second opening to define a gas flow path. The device also includes a rotatable member engaged with the circular plate. The rotatable member is configured to: (a) rotate the circular plate about an axis of the circular plate; and (b) adjust a volume of gas flowing across the circular plate and along the gas flow path.
F16K 3/08 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular closure plates rotatable around their centres
F16K 3/34 - Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
F16K 3/32 - Means for additional adjustment of the rate of flow
The present disclosure provides a drain assembly for an AC furnace coil unit. The drain assembly includes a drain pan defining one or more drain channels extending longitudinally therealong, and an arcuate heat shield detachably coupled to the drain pan. The arcuate heat shield extends along a length of the drain pan. The arcuate heat shield is configured to define a cavity between an inner surface thereof and the drain pan, and distribute airflow, incident on an outer surface thereof, along longitudinal sides of the drain pan.
The disclosure relates to a plug-in connector including a housing having at least two contact terminals received in adjacent terminal receiving cavities. An electric identification device is arranged in the housing and adapted to simultaneously contact the at least two terminals. The electric identification device including a unique identifier, wherein one of the at least two terminals is an output terminal of the identification device, and wherein the unique identifier of the electric identification device is adapted to be read out via the output terminal for authenticating an original equipment manufacturer's parts, such as a plug-in authenticator.
H01R 13/00 - ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS - Details of coupling devices of the kinds covered by groups or
H01R 12/75 - Coupling devices for rigid printing circuits or like structures connecting to cables except for flat or ribbon cables
H01R 13/66 - Structural association with built-in electrical component
The disclosed technology includes a sound dampening apparatus for an axial fan of an air handling unit. The sound dampening apparatus can include a body having two substantially straight sides converging at a corner and a concave side disposed opposite the corner. The body can be installed in an enclosure of the air handling unit outside of a primary airflow path extending axially through the axial fan and be configured to reduce a noise level of the axial fan.
Air sanitation systems are described. The air sanitation device can include an air movement device configured to move air through at least a portion of the air sanitation system, as well as an ultraviolet (UV) cleaning section including a UV light source and a swirling airflow path. The swirling airflow path can twist about the UV light source along at least some of a length of the UV light source.
F24F 3/16 - 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 treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by ozonisation
F24F 8/22 - Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
C02F 1/32 - Treatment of water, waste water, or sewage by irradiation with ultraviolet light
The disclosed technology includes an axial fan assembly for an air handling unit. The axial fan assembly can include an axial fan that is configured to direct a flow of air along an airflow path through the axial fan assembly and a stator that is disposed in the airflow path downstream of the axial fan to at least partially straighten the flow of the air. The axial fan assembly can include a heating element assembly disposed in the airflow path downstream of the stator. The heating element assembly can include a heating element having a generally toroidal shape having an outer diameter less than an inner diameter of a casing disposed around the axial fan. The heating element assembly can have one or more supports configured to space the heating element a distance downstream from the stator to form a gap between the stator and the heating element.
The disclosed technology includes an axial fan assembly for an air handling unit of a heating ventilation and air conditioning (HVAC) system. The axial fan assembly can include an axial fan configured to direct air through the axial fan assembly, an inlet ring disposed in a flow path upstream of the axial fan and configured to direct air toward the axial fan, a stator disposed in the flow path downstream of the axial fan and configured to straighten a flow of the air, an outlet ring disposed in a flow path downstream of the axial fan and configured to direct air out of the axial fan assembly, and a fan deck configured to attach to the air handling unit and support at least the axial fan.
An air conditioning unit is disclosed for use in an opening of a building. The air conditioning unit includes an indoor portion configured to be position on an internal portion of the building and having an indoor heat exchanging coil, an outdoor portion configured to be position on an external portion of the building and having an outdoor heat exchanging coil, and a water dispensing mechanism configured to externally disperse condensate from within the outdoor portion.
An air conditioning unit for use in an opening of a building. The air conditioning unit includes an indoor portion configured to be position on an internal portion of the building and having an indoor heat exchanging coil, an outdoor portion configured to be position on an external portion of the building and having an outdoor heat exchanging coil, a pump, tubing connected to the pump, and a water dispersing device. The pump and the tubing may be configured to pump condensate from one of the indoor portion and the outdoor portion to the water dispersing device disposed at the other of the outdoor portion and the indoor portion such that the water dispersing device disperses the condensate about an area of the other of the outdoor portion and the indoor portion.
F24F 13/22 - Means for preventing condensation or evacuating condensate
F24F 1/02 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
F24F 1/0003 - Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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 1/027 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle mounted in wall openings, e.g. in windows
F24F 1/031 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by mounting arrangements penetrating a wall or window
16.
SUPPLEMENTAL HEAT SOURCE IN SELF-CONTAINED HEAT PUMP ROOM CONDITIONING UNITS
A room conditioning unit having a heat pump is disclosed herein. An electronics board can be located in a compartment in an indoor portion of the room conditioning unit. During heating mode, air can be passed across the electronics board to warm the air, and the warmed air can then be mixed with intake air that is being directed toward the indoor coil for heating.
F24F 1/0375 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by heating arrangements with additional radiant heat-discharging elements, e.g. electric heaters
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
F24F 1/027 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle mounted in wall openings, e.g. in windows
A vent attachment for a tankless water heater is provided. The vent attachment includes a first conduit and a second conduit. The first conduit includes a first exhaust pathway and a first air intake pathway. The first air intake pathway includes an adjustable portion having a first adjustable length and a first adjustment mechanism. The second conduit includes a second exhaust pathway and a second air intake pathway. The second air intake pathway slidably engages with the first air intake pathway. The second air intake pathway includes a projecting portion having a second adjustable length equal to or greater than the first adjustable length and a second adjustment mechanism. The first adjustment mechanism and the second adjustment mechanism slidably couple the second conduit with the first conduit for a desired length of the vent attachment.
E04F 17/02 - Vertical ducts; Channels, e.g. for drainage for carrying away waste gases, e.g. flue gases; Building elements specially designed therefor, e.g. shaped bricks or sets thereof
The disclosed technology includes a heat pump water heater system comprising a primary heat pump and a boost heat pump. The primary heat pump can heat water to a first temperature for a first hot water use, and the boost heat pump can heat water to a second temperature for a second hot water use. The heat pump water heater system can be configured to provide heated water for the first hot water use and heated water at the second temperature for the second hot water use.
The disclosed technology includes fan mounting decks used in air handling units of heating ventilation and air conditioning (HVAC) systems. The disclosed technology can include an air handling unit having a heat exchanger coil and an axial fan housed within an enclosure. The enclosure can include a fan mount that can receive and support the axial fan when the axial fan is in a first orientation configured to direct air across the heat exchanger in a first direction and when the axial fan is in a second orientation configured to direct the air across the heat exchanger in a second direction.
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
F04D 29/56 - Fluid-guiding means, e.g. diffusers adjustable
A fastening device for fluid tightly coupling a first duct body and a second duct body of a heat exchanger is provided. The fastening device includes a support member to couple with a connecting edge of the first duct body. The support member includes a pivot pin and a locking device disposed at an offset distance from the pivot pin along a radial axis of the fastening device. The fastening device further includes a pivot arm having a first end to engage with the pivot pin and a second end to engage with a flange of the second duct body. The locking device engages with the pivot arm and move the second end of the pivot arm relative to the pivot pin to fluid tightly engage the flange of the second duct body with the connecting edge of the first duct body..
F16B 2/10 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using pivoting jaws
F28F 9/00 - Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
A freeze protection system is provided that includes a first valve configured to be coupled with an inlet of a water heater, such as a tankless water heater; a second valve configured to be coupled with an outlet of the water heater; and a valve actuator configured to automatically actuate the first valve and the second valve to permit water to drain from the water heater when (1) electric power is lost to the water heater, and (2) a temperature of a fluid in or around the water heater is less than or equal to a predetermined low temperature threshold.
F24H 1/10 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
F24H 15/136 - Defrosting or de-icing; Preventing freezing
ABSTRACT The disclosed technology includes a shroud structure. The shroud structure can include at least two distinct pieces. The shroud structure can include various recesses, apertures, and/or cavities each configured to at least partially receive one or more components of a heat pump system. The shroud structure can include an air inlet aperture in fluid communication with a cavity, which is configured to be in fluid communication with an evaporator of the heat pump system. On the opposite side of the evaporator, a fan outlet can be configured to be in fluid communication with the evaporator such that air can flow through the shroud structure.
The present disclosure provides an energy recovery device that helps in energy recovery between appliances. The energy recovery device includes a body defining a cavity within a waste heat channel of a first appliance, and a capsule detachably disposed within the cavity. The capsule is made of a material configured to allow exchange of heat from the waste heat channel to a phase change material disposed within the capsule. Further, the capsule is attachable to a second appliance.
An exemplary embodiment of the present disclosure provides a flue gas outlet assembly including a flue gas inlet configured to connect to an exhaust outlet of a fuel burning device, a flue gas outlet, and a flue pipe condensate drain assembly including a condensate inlet, a condensate outlet, and a float valve disposed between the condensate inlet and the condensate outlet, the float valve including a bullet-shaped float, wherein the float valve is biased closed and is configured to open to permit a flow of condensate from the condensate inlet to the condensate outlet upon a sufficient amount of condensate collecting proximate the float valve.
The disclosed technology includes systems and methods for reducing temperature overshoot of a heating, ventilation, and air conditioning (HVAC) system. The disclosed technology can include a thermostat having a temperature sensor and a controller. The controller can be configured to receive temperature data from the temperature sensor, determine whether a time since the heating cycle of the HVAC unit began is greater than or equal to a predetermined amount of time, and determine whether a current temperature is less than or equal to a low threshold temperature, the low threshold temperature being less than a target temperature. If the current temperature is less than or equal to the low threshold temperature, the controller can determine whether a capacity of the HVAC unit at the end of the heating cycle is greater than a threshold capacity and adjust a response setting of the thermostat by a predetermined adjustment amount.
G05B 13/00 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
A heat pump pool heater (HPPH) system is disclosed which may include a heat pump, a water temperature sensor, one or more evaporator sensors, and one or more supplemental heat sources. The HPPH system can determine that frost is forming on an evaporator coil and can transition from a normal pool water heating mode to a defrost mode to remove frost from the evaporator coil. During the defrost mode, the HPPH system can operate the one or more supplemental heat sources to provide heat to the pool water.
The disclosed technology includes an air handling system including an air handler, a return duct, and a supply duct. The air handler can condition air received via the return duct from an interior area and output the conditioned air via the supply duct back into the interior area. The air handler can include a housing having a first end, a second end, and a plurality of side walls defining a cavity. The air handler can further include a heat exchanger positioned within the cavity, a fan deck substantially dividing the cavity into a first section and a second section, and a fan in fluid communication with an aperture of the fan deck. The fan deck can be positioned within the cavity at a non-zero angle with respect to horizontal to provide efficient air flow.
The present disclosure provides a device and a method for detecting leak in a tankless water heater. According to the present disclosure, a leak detection device is disposed on a base of the tankless water heater. The leak detection device includes a leak sensor and at least one absorption arm extending from the leak sensor. The absorption arm wicks water and transports the wicked water towards the leak sensor. The leak sensor generates a signal indicative of leakage in the tankless water heater, in response to sensing wetness.
F24H 1/10 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
F24H 9/17 - Means for retaining water leaked from heaters
G01M 3/04 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
F24H 15/12 - Preventing or detecting fluid leakage
The disclosed technology includes devices, systems, and methods for heat pump systems configured to operate in low ambient temperatures. The disclosed technology can include a heat pump water heater system having an evaporator, a first compressor configured to compress refrigerant to a first pressure, and a second compressor configured to compress the refrigerant to a second pressure. The second pressure can be greater than the first pressure. The heat pump water heater system can include a preheater configured to receive the refrigerant at the first pressure and heat water and a condenser configured to receive the refrigerant at the second pressure and heat water. The water can be passed through the preheater before being passed through the condenser.
The disclosed technology includes a heat pump having a thermal energy storage (TES) material. The heat pump can include a first heat exchanger to exchange heat between ambient air and refrigerant, a second heat exchanger to exchange heat between the refrigerant and air supplied to a climate-controlled space, and a third heat exchanger to exchange heat between the TES material and the refrigerant in a first fluid path and the refrigerant in a second fluid path. The heat pump can include a first compressor to circulate refrigerant to the first, second, and third heat exchangers and a second compressor to circulate refrigerant to the second and third heat exchangers. The first compressor can facilitate heat exchange between the ambient air and the TES material and the second compressor can facilitate heat exchange between the TES material and the air supplied to the climate-controlled space.
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
F25B 41/42 - Arrangements for diverging or converging flows, e.g. branch lines or junctions
F25B 41/20 - Disposition of valves, e.g. of on-off valves or flow control valves
F25B 13/00 - Compression machines, plants or systems, with reversible cycle
F25B 7/00 - Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
31.
MIXING VALVE SUBASSEMBLY AND WATER HEATER INCLUDING SAME
A mixing valve assembly is disclosed. The mixing valve assembly can include a cold water connector, a hot water connector, an electronic valve system, and a tube. The cold water connector can have a through-hole configured to slideably receive at least a portion of a first tubular portion of a cold water inlet, and the hot water connector can have a through-hole configured to slideably receive at least a portion of a second tubular portion of a hot water outlet. The electronic valve system can be configured to transition a valve between an open configuration and a closed configuration such that cold water can be selectively permitted to flow from the cold water connector to the hot water connector. The mixing valve assembly can be configured to selectively permit cold water to bypass the tank of water heater.
The disclosed technology includes systems and methods for a heat pump water heater. The disclosed technology can include a heat pump water heater system having an evaporator, a condenser, a vapor injection line, a compressor, and a multi-fluid heat exchanger. The vapor injection line can include an expansion valve to transition refrigerant received from the condenser at a first pressure to a second pressure. The compressor can be configured to circulate refrigerant through the condenser, the multi-fluid heat exchanger, the vapor injection line, and the evaporator. The multi-fluid heat exchanger can be configured to receive refrigerant at a first pressure from the condenser, refrigerant at a second pressure from the vapor injection line, and water. The multi-fluid heat exchanger can further facilitate heat transfer between the refrigerants at the first and second pressures and the water to preheat the water before the water is passed through the condenser.
The present disclosure provides a louvered fin including a leading edge, a trailing edge, and a surface extending between the leading edge and the trailing edge. The surface defines a first set of holes along a first axis, a second set of holes along a second axis and offset from the first set of holes, and a third set of holes along a third axis and offset from the second set of holes. Each of the first axis, the second axis, and the third axis extends substantially parallel to a longitudinal axis of the fin. A first offset distance between the second and first set of holes is greater than a second offset distance between the third and second set of holes. The second and the third set of holes define a substantially obtuse trapezoidal matrix.
F28F 1/32 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
34.
HEAT PUMP POOL WATER HEATER SYSTEMS AND METHODS THERETO
The disclosed technology includes systems and methods for operating a pool water heating system. The pool water heating system can include a heat pump, a supplemental heat source, a water temperature sensor, and a controller. The controller can be configured to receive water temperature data and, in response to determining that the temperature of the water is less than a threshold temperature, output a control signal to activate the heat pump. The controller can further determine an expected heating time that can be indicative of an amount of time required for the temperature of the water to be greater than or equal to the threshold temperature. The controller can also generate a heating schedule based at least in part on the expected heat time and a predetermined time of use. The heating schedule can be indicative of a heat pump operation time and a supplemental heat source operation time.
A heat trap apparatus for a water heater is provided. The heat trap apparatus includes a tubular body having a length defined between a first end and a second end, a liner disposed within the tubular body, and a heat trap baffle assembly having a tubular housing coaxially disposed within the liner to inhibit convective fluid flow therethrough. The liner has a length greater than the length of the tubular body and has an outer surface engages with an inner surface of the tubular body using an interference fit. The liner includes a first end engaging with a peripheral edge of the first end of the tubular body and a second end extending beyond a peripheral edge of the second end of the tubular body for a desired length to connect with a conduit.
A heat trap apparatus for a water heater is provided. The heat trap apparatus includes a tubular body, a liner disposed within the tubular body, and a heat trap baffle assembly having a tubular housing coaxially disposed within the liner. The liner includes a projection to engage with an inner surface of the tubular body at a first end using an interference fit. The tubular housing includes a first diametric portion to engage with the inner surface of the tubular body at a second end using an interference fit, a second diametric portion extending from the first diametric portion and to engage with an inner surface of the liner using an interference fit, and a third diametric portion extending from the second diametric portion and to movably support one or more heat trap inserts to inhibit convective fluid flow therethrough.
The present disclosure provides a climate control system including a first heat exchanger having a plurality of first channels to allow flow of water therethrough, a burner to heat the water in the first channels of the first heat exchanger, and an inducer disposed proximal to the burner to direct combustion air towards the burner for combustion, and vent products of combustion. The system further includes a hydronic coil-to-air heat exchanger in fluid communication with the first heat exchanger, to receive the heated water from the first heat exchanger. The hydronic coil-to-air heat exchanger includes a plurality of second channels to allow flow of heated water therethrough. The system also includes a blower to blow air across the plurality of second channels of the hydronic coil-to-air heat exchanger, whereby the air is heated by the heated water.
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
F24D 5/04 - Hot-air central heating systems; Exhaust-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
F24D 5/12 - Hot-air central heating systems; Exhaust-gas central heating systems using heat pumps
F24D 19/10 - Arrangement or mounting of control or safety devices
F24F 5/00 - Air-conditioning systems or apparatus not covered by group or
38.
COMBINED AIR CONDITIONING AND WATER HEATING VIA EXPANSION VALVE REGULATION
A combination water heating, air conditioning refrigerant system is described. The combined system includes a plurality of independently adjustable electronic expansion valves. The expansion valves can independently modulate the delivery of high-temperature, high-pressure refrigerant to either a water heat exchanger or an outside condenser. A controller can receive input signals, including temperature signals from one or more temperature sensors that indicate the temperature at various locations of the system. The temperature signals include one or more of water temperature signals, ambient air temperature signals, or refrigerant super heat temperatures signals. In response to the input signals, the controller can output control signals to one or more of the plurality of electronic expansion valves.
F25B 6/02 - Compression machines, plants or systems, with several condenser circuits arranged in parallel
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
F24F 11/84 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
The disclosed technology includes devices and systems for an economizer of a heating ventilation and air conditioning (HVAC) system. The disclosed technology can include an economizer for an HVAC system comprising a housing, an air inlet extending through a wall of the housing, a sliding door configured to transition between a closed position and an open position, and a controller configured to cause the sliding door to transition between the closed position and the open position based on temperature data. The sliding door can comprise a first portion forming a barrier and a second portion comprising at least one aperture. In the closed position, the first portion can align with the air inlet and substantially prevent ambient air from moving through the air inlet. In the open position, the second portion can align with the air inlet and permit the ambient air to move through the air inlet.
F24F 11/86 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
F24F 13/08 - Air-flow control members, e.g. louvres, grilles, flaps or guide plates
The present disclosure provides a water heater including a bypass conduit to allow flow of cold water from an inlet pipe to an outlet pipe, and an outlet temperature sensor coupled to the outlet pipe downstream of an outlet of the bypass conduit, to sense temperature of mixture of hot water and cold water in the outlet pipe. An electronic mixing valve is disposed along the inlet pipe to receive temperature data of water mixture from the outlet temperature sensor and compare temperature of the water mixture with a predefined temperature value. In response to determining that the water mixture is flowing through the outlet pipe, the electronic mixing valve regulates the flow of cold water through at least one of the bypass conduit and the inlet pipe until the temperature of the water mixture is within a predetermined range of the predefined temperature value.
The disclosed technology can include a bypass valve assembly having a partition that can fluidly separate an inlet and an outlet of a fluid heating system. A first bypass valve and a second bypass valve can be mounted to the partition and configured to permit a fluid to flow between the inlet and the outlet. The first bypass valve and the second bypass valve can be configured to transition between a closed state and an open state. The first bypass valve and the second bypass valves can each have a spring configured to transition the respective first and second bypass valve from the closed state in response to experiencing a pressure that is greater than or equal to a respective first or second predetermined pressure. The second predetermined pressure can be greater than the first predetermined pressure.
F28F 27/02 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
42.
BATTERY-INTEGRATED HEAT PUMP SYSTEMS AND METHODS THERETO
The disclosed technology includes devices, systems, and methods for a battery-integrated heat pump system. The disclosed technology can include a heat pump system having a battery, a compressor, and a variable speed drive in electrical communication with the battery and the compressor. The variable speed drive can be configured to control a speed of the compressor. The heat pump system can include a fan that can be configured to move air across a heat exchanger coil of the heat pump system and the battery can be located in an airflow path of the fan such that the fan can also move air across the battery to regulate a temperature of the battery.
The disclosed technology includes devices, systems, and methods for a battery-integrated heat pump system. The disclosed technology can include a heat pump system having an indoor heat exchanger coil, an outdoor heat exchanger coil, and a compressor. The disclosed technology can further include a third heat exchanger coil, a battery, and a pump configured to circulate a fluid through the third heat exchanger coil and the battery. The disclosed technology can be configured to manage the temperature of the battery by operating the pump to facilitate heat transfer between the refrigerant and the fluid to heat or cool the battery.
F25B 5/02 - Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
F24F 1/42 - Separate outdoor units, e.g. outdoor unit to be linked to a separate room unit comprising a compressor and a heat exchanger characterised by the use of the condensate, e.g. for enhanced cooling
F24F 13/22 - Means for preventing condensation or evacuating condensate
F25B 6/02 - Compression machines, plants or systems, with several condenser circuits arranged in parallel
F25B 25/00 - Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups
F25B 41/20 - Disposition of valves, e.g. of on-off valves or flow control valves
F25B 41/42 - Arrangements for diverging or converging flows, e.g. branch lines or junctions
H01M 10/60 - Heating or cooling; Temperature control
F24F 5/00 - Air-conditioning systems or apparatus not covered by group or
B60H 1/00 - Heating, cooling or ventilating devices
44.
CORROSION PREVENTION FOR HEAT EXCHANGER DEVICES AND POOL HEATERS
F24H 9/45 - Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means
F28F 19/06 - Preventing the formation of deposits or corrosion, e.g. by using filters by using coatings, e.g. vitreous or enamel coatings of metal
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
F24H 1/16 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled
F24H 1/54 - Water heaters for bathtubs or pools; Water heaters for reheating the water in bathtubs or pools
F28D 7/02 - 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 helically coiled
45.
DEFROST SYSTEMS AND METHODS FOR HEAT PUMP WATER HEATERS
A heat pump water heater can include a water tank and a refrigerant circuit that can be in fluid communication with an evaporator coil, a condenser coil, and a compressor. The heat pump water heater can include a fan configured to move air across the evaporator coil, a temperature sensor, and a controller. The controller can be configured to receive temperature data from the temperature sensor and, in response to the temperature data indicating a temperature less than a predetermined temperature threshold, output instructions for the compressor to deactivate and the fan to move air across the evaporator coil.
The disclosed technology includes a gas delivery system for controlling a target gas input rate of a fluid heating device. The system can include a sensor configured to measure a temperature of a gas flowing in a gas flow path, a modulating orifice in fluid communication with the gas flow path, and a motor in mechanical communication with the modulating orifice. The system can further include a controller configured to receive temperature data indicative of the temperature of the gas. The controller can determine a target cross-sectional area of the modulating orifice based at least in part on the target gas input rate and the temperature of the gas and, in response, output a signal to the motor to transition the modulating orifice from a first position to a second position having the target cross-sectional area.
A system and a method for controlling twinned heating appliances are described. The system includes a first heating appliance and a second heating appliance. The first heating appliance includes a first blower and a first wireless communication unit. Further, the second heating appliance is operatively coupled with the first heating appliance as a twinned unit. The second heating appliance includes a second blower and a second wireless communication unit. The system also includes a primary control unit configured to receive speed data indicative of a speed of the first blower and speed data indicative of a speed of the second blower. The primary control unit is further configured to output a blower speed control signal to at least one of the first blower and the second blower to synchronize the first blower and the second blower.
F24D 19/10 - Arrangement or mounting of control or safety devices
F24D 5/04 - Hot-air central heating systems; Exhaust-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
An interlaced heat exchanger is described. The interlaced heat exchanger includes a plurality of microchannel tubes configured to allow flow of a first fluid therethrough and a plurality of flat tubes configured to allow flow of a second fluid therethrough to exchange heat with the first fluid. The plurality of microchannel tubes and the plurality of flat tubes are stacked in an alternating arrangement along a longitudinal axis of the interlaced heat exchanger such that the plurality of microchannel tubes and the plurality of flat tubes are interlaced. The interlaced heat exchanger further includes a plurality of fin plates interspersed with the plurality of microchannel tubes and the plurality of flat tubes. The plurality of fin plates allows a flow of air across a width of the interlaced heat exchanger to exchange heat with at least one of the first fluid and the second fluid.
F28D 1/04 - 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 mo with the heat-exchange conduits immersed in the body of fluid with tubular conduits
F28D 1/053 - 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 mo with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
F28F 1/02 - Tubular elements of cross-section which is non-circular
F28F 1/12 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
49.
SYSTEMS AND METHODS FOR DETERMINING A FAULT OF AN AIR SYSTEM FOR HEATING, VENTILATION AND/OR COOLING
The disclosed technology includes a method for identifying and determining a fault or a potential fault in an air system having an outdoor unit and an indoor unit in fluid communication via a refrigerant circuit. The method can include receiving, from a sensor, vibration data indicative of one or more sounds or vibrations detected by at least a portion of the refrigerant circuit. The method can include identifying, based at least in part on the vibration data and stored baseline vibration data, an abnormality in the vibration data. The abnormality can be indicated by vibration data indicative of a frequency that is outside a range of acceptable frequencies. The method can include analyzing the identified abnormality according to a predetermined set of evaluation factors to determine the fault or the potential fault.
The disclosed technology can include a system for monitoring and detecting a fault in a fluid storage tank. A sensor can be located in, on, or proximate the fluid storage tank and can be configured to detect waveforms produced by the fluid storage tank in response to strain. The sensor can convert such waveforms into electrical signals and transmit such electrical signals in the form of vibration data to a controller. The controller can compare the vibration data to stored data, and based on such comparison, determine if a fault is present in the fluid storage tank.
A leakage mitigation system includes a leakage detection device having a canister configured to: (i) contain a first reactant and a second reactant and, (ii) based on a volume of liquid leaked from a tank, allow the first reactant and the second reactant to react with each other to produce a gas. A shut-off valve coupled to an inlet pipe of the tank is configured to actuate between an open condition and a closed condition. Further, a conduit extending between the leakage detection device and the shut-off valve allows flow of the gas from the leak detection device to the shut off valve. In order to mitigate the leakage of water, the shut-off valve is actuated between the open condition and the closed condition based on the pressure exerted thereon by the flow of the gas.
G01M 3/26 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
A leakage mitigation system to trigger a preventive action against detected leakage from a liquid enclosure, includes a leakage detection device disposed along base of the liquid enclosure. The system includes an absorbent that actuates the leakage detection device from a first state to a second state based on a volume of liquid leaked from the liquid enclosure. The device includes a valve coupled to an inlet pipe of the liquid enclosure and configured to allow flow of liquid through the inlet pipe in an open condition thereof and restrict flow of liquid through the inlet pipe in a closed condition thereof. The system further includes a shut-off actuator coupled to the valve and configured to actuate the valve from the open condition to the closed condition in response to the device being actuated from the first state to the second state.
Disclosed herein are evaporator assemblies for heat pump systems. The evaporator units can comprise a housing defining an interior chamber, an air inlet, and an air outlet. The air inlet and the air outlet can form an air flow path through the interior chamber, and an evaporator unit can be positioned within the interior chamber such that the air flow path contacts the evaporator unit. The air inlet having a semi-circular cross section through which air flows into the interior chamber, the semi-circular cross section having a straight edge and a curved edge. A velocity magnitude of the air flowing from the air inlet into contact with the evaporator unit can deviate less than 0.1 m/s from the average air velocity across the surface area of the evaporator.
Disclosed herein are heat pump systems for water heaters. The heat pump systems can comprise a housing defining an interior chamber, an air inlet, and an air outlet. The air inlet and the air outlet can form an air flow path through the interior chamber, and an evaporator unit can be positioned within the interior chamber such that the air flow path contacts the evaporator unit. The housing can also have a flue pipe having a cross-section to encourage aerodynamic flow and/or side baffles to encourage air flow into the evaporator unit. The housing can also have a second air inlet to increase air flow and a curved elbow around the first air inlet to direct the air flow path. The air flow path can flow from a top side of the housing to a side of the housing, and the air flow path can be reversible.
The disclosed technology includes an air system including a first interlaced microchannel heat exchanger and a second interlaced microchannel heat exchanger. The air system can include a plurality of fluidly separated refrigerant circuits, and each of the refrigerant circuits can be configured to flow through the first interlaced microchannel heat exchanger and the second interlaced microchannel heat exchanger. The first interlaced microchannel heat exchanger can be located indoors, and the second interlaced microchannel heat exchanger can be located outdoors. Each of the refrigerant circuits can include its own compressor and expansion valve.
The disclosed technology includes a heat exchanger assembly having a plurality of heat exchanger tubes. Each heat exchanger tube can include a baffle. The baffle can include a first end and a second end, a length of the baffle being defined as a distance between the first end and the second end, a body having a first side and a second side, a hanging portion located proximate the second end, and a plurality of fins disposed along the body. The plurality of fins can extend outwardly from the body and upwardly towards the second end at an angle relative to a central axis of the body. The plurality of fins can include a first fin positioned proximate the first end and having a first angle and a second fin positioned proximate the second end and having a second angle, the first angle being less than the second angle.
B21D 28/02 - Punching blanks or articles with or without obtaining scrap; Notching
F28F 1/10 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
F28F 13/12 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
57.
DEVICES AND SYSTEMS FOR AIR CONDITIONING UNITS HAVING A SUBCOOLING LINE
The disclosed technology includes devices and systems for an air conditioning unit having a subcooling line. The disclosed technology can include a heat exchanger coil, a bypass line, and a subcooling line. A first valve can be in fluid communication with the subcooling line and a second valve can be in fluid communication with the bypass line. When the air conditioning unit is operating in a cooling mode, the first valve can be configured to permit refrigerant to flow through the subcooling line and the second valve can be configured to prevent refrigerant from flowing through the bypass line. When the air conditioning unit is operating in a heating mode, the first valve can be configured to prevent refrigerant from flowing through the subcooling line and the second valve can be configured to permit refrigerant to flow through the bypass line.
A grille assembly for an air handling unit is provided. The grille assembly includes a plurality of first wires aligned in a first plane perpendicular to a direction of flow of air and a plurality of second wires aligned in a second plane perpendicular to the direction of flow of air. The plurality of first wires and the plurality of second wires together form a staggered structure to at least partly enclose an air passage opening of the air handling unit. The second plane is parallel to the first plane and separated by an offset distance along a third plane parallel to the direction of flow of air.
A screen cover for attaching to an open end of a conduit of a water heater is provided. The screen cover includes a first diametric portion having a first diameter and a second diametric portion having a second diameter. The first diameter is greater than the second diameter. The first and second diametric portions are coaxially aligned and configured to allow flow of air or gas therethrough. The screen cover includes a shoulder portion defined between the first diametric portion and the second diametric portion. The screen cover further includes a mesh disposed at a first opening of the first diametric portion. The mesh prevents entry of external objects into the water heater through the open end of the conduit.
A heating system with wraparound heat exchanger is disclosed. The system includes a centrifugal fan that expels air radially into a plenum space. A heat exchanger tube is placed in the plenum space, thereby heating the air in the plenum space before it exits an assembly cabinet. The heat exchanger tube can have various configurations, including non-horizontal configurations so as to allow condensate to drain from the heat exchanger tubes.
A system for controlling air flow in an air handling unit having an air mover is provided. The system includes a first and a second sensing device, each receiving a first input indicative of electric power and a second input indicative of properties of air, respectively. The system further includes a processing unit to determine heat generated from a motor of the air mover based on the first input, determine density of air based on the heat generated from the motor based on the second input, and determine an actual air flow rate based on the density of the air, a speed of the motor, and dimensional characteristics of the air handling unit. Further, the speed of the motor is controlled when the actual air flow rate is different from a target air flow rate.
F24F 11/74 - Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
A liquid dosing system is disclosed and can include a cartridge comprising a reservoir configured to store an additive, an output vessel in fluid communication with the reservoir, and a cartridge outlet in fluid communication with the output vessel. The liquid dosing system can include a housing that includes a water passage configured to direct water though the liquid dosing system and a receiving portion configured to at least partially receive the cartridge when the cartridge is connected to the housing. The receiving portion can include a receiving port in fluid communication with the water passage, and the receiving port can be configured to receive at least some of the additive from the cartridge outlet when the cartridge is connected to the housing. The receiving portion can include a motor configured to engage in mechanical communication with the output vessel when the cartridge is connected to the housing.
C02F 5/08 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
G01F 11/00 - Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
B01F 35/80 - Forming a predetermined ratio of the substances to be mixed
A peristaltic pump system is disclosed and can include a rigid backing and a rotor assembly comprising a central hub. The central hub can rotate along a central axis extending in an axial direction. The central hub can include one or more ball bearings or one or more rollers that are configured to rotate about a respective roller axis that intersects a central axis of the central hub. Located between the rigid backing and the rotor assembly can be tubing or a flow channel that is defined by the rigid backing and an elastomeric sheet. As the central hub rotates, the one or more rollers or ball bearings are configured to push against the tubing or the flow channel in the axial direction and can move along the tubing or the flow channel to move fluid through the tubing or the flow channel.
A liquid dosing system is disclosed and can include an inlet conduit and an outlet conduit. The inlet and outlet conduits can each be configured to fluidly communicate a heat exchanger of a water heater. The liquid dosing system can include one or more connector conduits configured to fluidly connect the inlet conduit and the outlet conduit to define a fluid circuit by at least the inlet conduit, the heat exchanger, the outlet conduit, and the one or more connector conduits. The liquid dosing system can include a pump configured to pump water through the fluid circuit, a reservoir configured to store an additive, and a dosing device configured to dispense the additive into the fluid circuit.
C02F 5/08 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
G01F 1/74 - Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid
G01F 11/00 - Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
B01F 35/82 - Forming a predetermined ratio of the substances to be mixed by adding a material to be mixed to a mixture in response to a detected feature, e.g. density, radioactivity, consumed power or colour
A water heating system having a tank and one or more heat sources for heating water is provided. The water heating system includes a water outlet for allowing egress of water from the tank and a dip tube for allowing ingress of water into the tank. The dip tube includes a first end for coupling with a water source and a second end disposed proximate a base of the tank for discharging water into the tank through an array of holes. Each of the holes is defined in a side wall of the dip tube and laterally discharges water with respect to a longitudinal axis of the second end of the dip tube.
The disclosed technology includes systems and methods for operating a fluid heating device comprising a heat pump and an electric heating element. The disclosed technology can include a system and method that can receive current data from a current sensor and temperature data from a temperature sensor, determine whether the current is greater than or equal to a threshold current and whether the temperature is greater than or equal to a threshold temperature, and output a control signal to heat the fluid using the heat pump only or the electric heating element only based on the current data and the temperature data.
A condenser assembly is disclosed. The condenser assembly can include a condenser coil having a first portion and a second portion. The first portion can be configured to fluidly communicate with a first refrigerant line of a heat pump, and the first portion can have a plurality of windings defining an internal volume. The second portion can be configured to fluidly communicate with a second refrigerant line of the heat pump. The condenser coil can be configured to at least partially insert into an internal volume of a water heater tank.
A water heating system is provided. The water heating system includes a tank having a wall, a water inlet defined through the wall and configured to allow ingress of water into the tank, and a water outlet defined through the wall and configured to allow egress of water from the tank. The water heating system also includes a first heating element disposed in a first portion of the tank. The first heating element has a substantially elongate shape and is inclined at a first predefined angle with respect to a base of the tank.
The disclosed technology includes systems and methods for controlling an air conditioning system. The method of controlling the air conditioning system can include receiving air temperature data from an air temperature sensor and determining that the air conditioning system should operate in a reheat mode based on the air temperature being less than a threshold air temperature. The method can include outputting a control signal to a first electronic expansion valve to close and thereby prevent refrigerant to flow through an outdoor condenser coil. The method can also include outputting a control signal to a second electronic expansion valve to open and thereby permit refrigerant to flow through a reheat coil.
F24F 11/65 - Electronic processing for selecting an operating mode
F24F 11/76 - Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by means responsive to temperature, e.g. bimetal springs
F24F 11/871 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
F25B 29/00 - Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
Air recirculation systems for heat pumps are disclosed. The air recirculation systems include a heat pump subsystem and a recirculation subsystem. The recirculation subsystem can include one or more arms that direct cool, dehumidified air flowing from the heat pump subsystems back to air inlets. The recirculation subsystems can transition from open to closed configurations either manually or via motors. The air recirculation systems can include a controller that outputs a control signal to the motors to open or close the recirculation subsystems. The control signals can be based on temperature data, current data, and the like.
A combination domestic hot water and space heating system is disclosed. The system includes two refrigerant circuits, one dedicated to heating potable water in a water storage tank and one dedicated to heating a condenser used to heat a space within a building. A controller sends output signals to valves to vary refrigerant flow into the first refrigerant circuit and/or the second refrigerant circuit. The variation in refrigerant flow can be provided by a single multi-directional valve, one or more valves placed at a first end of each refrigerant circuit, and/or one or more electronic expansion valves placed at the end of each refrigerant circuit. Portions of the system can be placed into a single housing, thereby reducing installation costs and labor.
The disclosed technology includes a controller configured to control an output of one or more boilers to reduce temperature overshoot of the boiler system. The controller can receive temperature data, a threshold temperature value, and a maximum temperature value, and determine whether the temperature of the water in the boiler system is greater than or equal to a threshold temperature. The controller can also determine a number of operating boilers that were operating when the threshold temperature was reached and determine a temperature increment value based on the threshold temperature, the maximum temperature, and the number of operating boilers. The controller can output a control signal to a boiler to reduce an output of the boiler based on the temperature increment value and the temperature data to reduce overshoot of the boiler system.
Disclosed herein are connectors for a tankless water heater. The connectors can comprise a flange, an aperture extending through the flange having a first diameter, one or more slots extending through the flange, a connector portion substantially surrounding the aperture and extending outward from the flange away from the tankless water heater. The aperture can correspond to an air inlet extending into the tankless water heater, and the air inlet can have a second diameter that is larger than the aperture. To keep the flange in place, the one or more slots can correspond to one or more fastening holes in the tankless water heater. The one or more slots can be substantially parallel and on opposite sides of the aperture. The connector can be in a secured state when the one or more slots are fastened to the one or more fastening holes.
F24H 1/10 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
F24H 9/00 - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL - Details
A heated water device is disclosed. The heated water device includes a cold water tank configured to receive cold water from a cold water source and a hot water tank configured to receive water from a hot water source and discharge water to the cold water source. The heated water device includes a pump configured to selectively pump water from the hot water source and to the hot water tank and a valve configured to selectively permit water to flow from the hot water tank to the cold water source. The heated water device includes a thermoelectric generator configured to generate electrical energy from a water temperature differential between cold water in the cold water tank and heated water in the hot water tank.
Disclosed herein is a heat exchanger apparatus comprising a heat exchanger tube having an inlet valve and an outlet valve. When the valves are open, the refrigerant can flow through the heat exchanger tube, and when the valves are closed, refrigerant can be stored in the heat exchanger tube, thereby reducing the effective heat exchange surface area of the heat exchanger apparatus.
F28F 1/00 - Tubular elements; Assemblies 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
F24F 5/00 - Air-conditioning systems or apparatus not covered by group or
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
The disclosed technology includes a liquid storage tank having a heating element, an inlet for receiving unheated liquid, an outlet for outputting heated liquid, and a partition configured to divide the tank into a first portion and a second portion. The partition can have an aperture such that the first portion and the second portion are in fluid communication. The liquid storage tank can include an actuator in mechanical communication with the partition and configured to linearly move at least a portion of the partition based at least in part on the temperature of liquid within the tank.
The disclosed technology includes a header assembly for a water heating system heat exchanger. The header assembly can have an inlet, an outlet, a first compartment configured to receive a fluid from the inlet and direct the fluid to a first heat exchanger tube, a second compartment configured to receive the fluid from a second heat exchanger tube and direct the fluid to a third heat exchanger tube, and a third compartment configured to receive the fluid from a fourth heat exchanger tube and direct the fluid to the outlet.
The present disclosure addresses systems, media, and methods of predicting a remaining useful life of a water heater storage tank included in a water heating system. To predict the remaining useful life of the water heater storage tank, algorithmic calibration processes can be used to determine an anodic current range for a corrosive current flowing between the water heater storage tank and an anode rod inserted into the water heater storage tank. Respective values for the corrosive current can be measured, and a rate of reduction of the corrosive current can be calculated based on the respective measured values for the corrosive current. An estimate of a remaining useful life of the water heater storage tank can be made, and an alert indicative thereof can be transmitted based, at least in part, on the calculated rate of reduction of the corrosive current.
G01R 31/00 - Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
H05B 1/00 - ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - Details of electric heating devices
79.
HEAT PUMP SYSTEMS WITH GAS BYPASS AND METHODS THEREOF
Heat pump systems with a gas bypass tank and that operate in both heating and cooling modes are disclosed. The systems include a first splitting valve that can route liquid refrigerant to either the indoor coil or the outdoor coil, depending on whether the heat pump system is in heating or cooling mode. An expansion valve in the system can lower the pressure of liquid refrigerant leaving a condenser, thereby creating a two-phase fluid comprising liquid refrigerant and vaporized refrigerant. The gas bypass tank can separate liquid refrigerant from vaporized refrigerant. The liquid refrigerant can be supplied to the evaporator of the system, while the vaporized refrigerant can be bypassed to a compressor. The first splitting valve can include a first plurality of switching paths that route the separated liquid refrigerant to either the outdoor coil or the indoor coil.
The disclosed technology includes a controller for a cascade boiler system having both condensing and non-condensing boilers. The controller can receive supply water temperature data and return water temperature data to determine a current temperature differential in the system. The controller can determine a current load demand value using the current temperature differential and a set point temperature. If the current load demand value is less than or equal to a first load demand threshold, the controller can output a control signal for a condensing boiler to transition to a heating mode. If the current load demand value is greater than a second load demand threshold, the controller can output a control signal for a non-condensing boiler to transition to a heating mode.
A method of operating a water heater is disclosed. The method includes obtaining a first input corresponding to ambient temperature and a second input corresponding to evaporator temperature. The method includes determining the ambient temperature from the first input and the evaporator temperature from the second input, followed by determining whether the ambient temperature is less than a first threshold temperature. The method includes determining whether the evaporator temperature is less than a second threshold temperature when the ambient temperature is less than the first threshold temperature, where the second threshold temperature is less than the first threshold temperature. The method also includes actuating a heating element coupled to one or more tubes of the evaporator to heat refrigerant present in the one or more tubes, when the evaporator temperature is less than the second threshold temperature.
A heat exchanger having a first heat exchanger tube and a second heat exchanger tube is disclosed. The first heat exchanger tube can have a first leg, a second leg, and a bend section, and the bend section of the first heat exchanger tube can include three or more bends, each of the three or more bends having a corresponding bend angle that is less than or equal to approximately 90 degrees. The second heat exchanger tube can have a first leg, a second leg, and a bend section, and the bend section of the second heat exchanger tube can include three or more bends, each of the three or more bends having a corresponding bend angle that is less than or equal to approximately 90 degrees.
F28D 7/06 - 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 having a single U-bend
F28F 1/10 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
F24B 1/188 - Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by use of heat exchange means
The disclosed technology includes an evaporator having a plurality of sidewalls arranged to define an internal cavity and a top plate covering the internal cavity. At least one of the sidewalls can include a plurality of refrigerant channels such that at least one of the sidewalls can function as a heat exchanger. Each of the refrigerant channels can be attached to a refrigerant inlet and a refrigerant outlet at an angle, such that each refrigerant channel is angled. The angled refrigerant channels can facilitate directing ambient air across the refrigerant channels and fins and to the internal cavity. The angled refrigerant channels can further provide a flow path for accumulated moisture and/or condensate on the exterior surfaces of the refrigerant channels and/or fins to shed, thereby minimizing the potential for freezing.
An air sanitation device is disclosed. The air sanitation device can include a base section, a body section, and an air movement device configured to move air through at least a portion of the air sanitation device. The air sanitation device can move air from an inlet of the air sanitation device, and past an ultraviolet (UV) light source, and out an outlet of the air sanitation device. The air sanitation device can be configured to draw in air from within or below a breathing zone. The air sanitation device can be configured to draw in air from below the breathing zone and output sanitized air. The sanitized air can be outputted at an angle such that the sanitized air flows in a generally downward direction.
The disclosed technology includes a variable refrigerant flow (VRF) conditioning system including a single outdoor unit and a VRF path extending between the single outdoor unit and a plurality of terminals. The plurality of terminals can include a first terminal configured to condition air of an interior room and a second terminal configured to heat or cool a liquid. The VRF system can provide heating or cooling of air in different rooms or zones within a building or home while also providing heating or cooling of water. In response to a demand for heating or cooling at each terminal, the VRF system can vary the supply of refrigerant to each terminal, such that efficient and precise temperature regulation of air and liquid can be provided.
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 5/00 - Air-conditioning systems or apparatus not covered by group or
Systems and methods for integrating photovoltaic (PV) energy into water heater systems are disclosed. The disclosed technology includes determining whether a current water temperature is less than a first PV heat point that is greater than a normal heat point, and if so, outputting instructions for PV energy to be transferred from a PV system to a heating device of the water heater. If the current water temperature falls below a second PV heat point that is less than the normal heat point, the disclosed technology includes outputting instructions for energy to be transferred from a utility system to the heating device.
F24H 1/00 - Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
H02S 10/10 - PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
The disclosed technology includes a system for sanitizing a user's hands or other objects using atomized water. The system can include a heating element for heating air, a blower for directing the heated air toward a user's hands or other objects, and one or more reservoirs for holding fluids, such as water and a sanitizing agent. The system can include an atomizing device for atomizing at least some of the fluid. The system can include a controller for controlling the various components of the system.
The disclosed technology includes systems and methods of reducing frost accumulation on a heat pump evaporator coil. The disclosed technology can include a heat pump assembly having an evaporator coil, a fan configured to direct air across the evaporator coil, a temperature sensor, and a controller configured to energize the fan to direct air across the evaporator coil when the temperature of the evaporator coil is below a threshold temperature.
Systems and methods for dynamic boiler control are disclosed. The system can receive flue gas data from a flue gas sensor and can receive blower data associated with a blower of the boiler. The system can determine, based at least in part on the blower data, a current fire status of the boiler and can provide one or more fire-status-specific parameters based on the current fire status of the boiler. The system can compare the flue gas data to a target flue gas value, and in response to determining that the flue gas data is less than the target flue gas value, the system can execute one or more boiler operation rules using the one or more fire-status-specific parameters. The system can output instructions for adjustment of an air-fuel ratio of the boiler based on the boiler operation rules and the one or more fire-status-specific parameters.
The disclosed technology includes a fluid heating device including a frustoconical combustion chamber and a heat exchanger that can include heating tubes. The combustion chamber can have a first end and a second end that is in fluid communication with the heating tubes. The surface area of the second end of the combustion chamber can be larger than the surface area of the first end of the combustion chamber.
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
F23C 3/00 - Combustion apparatus characterised by the shape of the combustion chamber
The disclosed technology includes systems and methods for controlling a water heater. The disclosed systems can be configured to receive temperature data from a temperature sensor, receive flow rate data from a flow rate sensor, and receive a temperature setting. The systems can calculate a heat load rate based on at least the temperature data, the flow rate data, and the temperature setting, and can compare the heat load rate to a predetermined threshold setting. The systems can output instructions to perform a fast corrective action in response to the determination that the heat load is changing at a rate (i.e. the heat load rate) greater than, less than, or equal to the predetermined threshold setting.
F24H 1/10 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
F24H 9/20 - Arrangement or mounting of control or safety devices
92.
SYSTEMS AND METHODS FOR PREVENTING AND REMOVING CHEMICAL DEPOSITS IN A FLUID HEATING DEVICE
The disclosed technology includes a fluid heating device that can include a heating chamber in communication with a heating element, and an ultrasonic transducer in communication with the heating chamber and for transmitting ultrasonic sound waves. The disclosed technology includes an ultrasonic transducer system that includes an assembly configured to attach to a fluid heating device, and an ultrasonic transducer affixed to the assembly. The disclosed technology also includes a method for ultrasonic cleaning within a fluid heating device that can include a controller configured to receive flow data from a flow sensor; based on the flow data, determine that fluid is flowing through a heating chamber; and output instructions for an ultrasonic transducer to output ultrasonic sound waves.
B08B 3/12 - Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
93.
SYSTEMS AND METHODS FOR PROBABILISTIC AND DETERMINISTIC BOILER NETWORKS
Systems and methods for boiler regulation are disclosed. The system can receive boiler data from a boiler and compare the boiler data to a normal operating range to detect an abnormality. Based on a plurality of rules, the system can identify an anticipated root cause and at least one corrective action. Based on the at least one corrective action, the system can generate and/or output instructions for the boiler to perform the at least one corrective action. The system can display an indication of the abnormality and/or the at least one corrective action.
The disclosed technology includes a cleaning device for cleaning personal care tools, such as toothbrushes and shaving razors. The cleaning device can include a heating element configured to heat cleaning fluid received by the cleaning device and a high pressure nozzle configured to output heated cleaning fluid into the cleaning chamber.
B08B 3/08 - Cleaning involving contact with liquid the liquid having chemical or dissolving effect
B08B 3/10 - Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
A46B 17/06 - Devices for cleaning brushes after use
95.
SYSTEMS AND DEVICES FOR CORROSION PREVENTION AND METHODS THERETO
Disclosed herein are corrosion prevention devices comprising a sacrificial anode and a mass sensor. Also disclosed herein are corrosion prevention devices comprising a controller in communication with the mass sensor and sacrificial anode. The controller can be configured to receive mass data to detect when the mass of the sacrificial anode has fallen below a predetermined threshold. Upon determining that the mass has fallen below the predetermined threshold, the controller can designate that the sacrificial anode is depleted. In response, the controller can output instructions for performing one or more corrective actions to protect the desired structure from corrosion.
The disclosed technology includes an on-demand water heater which uses an electric heat source to heat the water. The on-demand water heater can have a low fluid capacity heating chamber which has an inlet and an outlet, an electric heat source for heating the water, and a controller to control the electric heat source and maintain the temperature of the water at a predetermined temperature setting. The on-demand water heater can be powered by a direct current power source. The on-demand water heater can also utilize a solar thermal system to provide additional heat to the water.
Systems and methods for monitoring anodic protection are disclosed. The system can include a sacrificial anode having an anode body, at least one cavity within the anode body, a conductor disposed within the at least one cavity, and electronic circuitry in communication with the conductor. The sacrificial anode can be electrically connected to a component or structure that is subject to galvanic corrosion. The cavity can be positioned such that as the anode degrades to a certain point, the conductor will contact water. In response, an alert can be provided to inform a user that the sacrificial anode needs replacement. The alert can be provided by activating a light, siren, or other device. The alert can also be sent to a mobile device or website.
A heating system of a managed fluid system can include a heat exchanger and a first temperature sensor device that measures an inlet temperature of a fluid flowing into the heat exchanger. The heating system can also include a second temperature sensor device that measures an outlet temperature of the fluid flowing out of the heat exchanger. The heating system can further include a controller communicably coupled to the first temperature sensor device and the second temperature sensor device. The controller can receive inlet temperature measurements made by the first temperature sensor device and outlet temperature measurements made by the second temperature sensor device. The controller can also evaluate the inlet temperature measurements and the outlet temperature measurements using at least one lookup table and at least one algorithm. The controller can subsequently determine an input rate of fuel used to heat the fluid flowing through the heat exchanger.
F24H 9/20 - Arrangement or mounting of control or safety devices
F24H 1/14 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
E04H 4/12 - Devices or arrangements for circulating water
E04H 4/14 - Parts, details or accessories not otherwise provided for
99.
WATER HEATER WITH AN INTEGRATED LEAK DETECTION SYSTEM
A water heater includes a tank assembly that defines an insulation cavity between an inner storage tank and an outer jacket. The water heater includes a bottom pad that supports the tank assembly thereon. The bottom pad is disposed in a bottom pan. Gaskets are disposed between the bottom pad and the bottom pan of the water heater. The bottom pad and at least one of the gaskets include apertures that are configured to internally route a leak sensor assembly of the water heater from the bottom pan to a controller of the water heater through the insulation cavity while preventing a leak of insulation material from the insulation cavity to the bottom pan. The water heater also includes a mounting bracket that is coupled to the inner storage tank to securely hold and route a portion of the leak sensor assembly disposed in the insulation cavity to the controller.
A water heater can include a heat source and a heat exchanger that transfers heat to the water. A header attached to the heat exchanger provides an inlet and an outlet for water to flow into and out of the heat exchanger. The header can also include an anode assembly that releasably attaches to the header. The anode assembly can be located at a bottom of the header so that an anode in the anode assembly remains in contact with the water when water is flowing through the heat exchanger.
F24H 1/10 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
F28F 19/00 - Preventing the formation of deposits or corrosion, e.g. by using filters
F24H 9/20 - Arrangement or mounting of control or safety devices
C23F 13/00 - Inhibiting corrosion of metals by anodic or cathodic protection