|| List of recent Air Conditioning-related patents
| Networked monitor for heating ventilation and air conditioning systems|
A system for providing monitoring of hvac systems includes a database comprising a plurality of computing device records, and a plurality of technician records. The system further includes a computing device connected to the hvac system, the computing device comprising a network interface device, an optical sensor located adjacent to one or more light emitting devices of the hvac system, and a processor for reading the sensor data from the optical sensor and transmitting the sensor data to a server.
| Control device for air conditioner|
The present disclosure simplifies the h-bridge circuit of the direct current motor for driving the damper (door) that switches the air passages in the indoor unit of an air conditioning device. The control device for an air conditioner that takes in inside or outside air and conditions the air inside an air conditioning unit using an evaporator and a heater core is provided with: a first actuator and a second actuator that drive the multiple dampers installed inside the air conditioning unit for switching the air passages; and three half-bridge circuits that control the first actuator and the second actuator sharing one of the half-bridge circuits.
| Vehicle hvac system with lower mounted blower unit|
A heating, ventilation, and air conditioning (hvac) system for a vehicle may include a blower unit, an evaporator unit, and a conditioning unit. The blower unit includes a fan that draws in air into the hvac system.
| Building built-in air conditioning system|
A building built-in air conditioning system comprising: an external heat exchanger (1), a reversing valve (2), a compressor (4), and microporous tubes (9, 10, 11). The microporous tubes are metal capillaries bound on a construction steel bar (12) and integrated with the concrete by casting.
|Supervisory controller for hvac systems|
A supervisory controller for heating, ventilation, and air conditioning (hvac) systems is described herein. One device includes a data management module configured to receive a zone demand signal from a local controller of a zone of an hvac system and receive a number of additional signals from a number of sensors, and a parameter identification module configured to determine, based on the zone demand signal, whether the zone is in a comfort state by loading a best model structure from a number of models and identifying parameters of the best model structure based on data received from the data management module..
|Method and apparatus for an energy saving heating, ventilation, and air conditioning (hvac) control system|
Embodiments of methods and apparatus disclosed herein may employ depth, visual, or motions sensors to enable three-dimensional people counting and data mining to enable an energy saving heating, ventilation, and air conditioning (hvac) control system. Head detection methods based on depth information may assist people counting in order to enable an accurate determination of room occupancy.
|Hvac case design for reduced valve noise|
A heating, ventilation, and air conditioning (hvac) module includes a housing and a valve. The housing defines a protruding portion that substantially conforms to a portion of an arching pathway defined by a distal end of the valve.
|Heating, ventilation, and air conditioning duct boot insulation cover|
A silicone or other insulating material is used as a cover for a heating, ventilation, and air conditioning boot. The cover is formed to easily fit onto the boot by slipping over the outside of the boot.
|System and method for controlling compressor motor voltage|
A variable speed drive (vsd) can be used to vary the voltage-to-frequency ratio (v/f) supplied to a compressor motor of a heating, ventilation, air conditioning or refrigeration (hvac&r) system to compensate for varying conditions in the hvac&r system.. .
|Data center facility design configuration|
The methods and apparatuses described herein is a data center. In one embodiment is described a data center comprising: a building having a plurality of rooms and first and second exterior load walls disposed on opposite sides of the building; a plurality of air handler and fluid cooler devices disposed exterior to the building along the first exterior load wall; a plurality of condenser unit devices disposed exterior to the building along the second exterior load wall; a data sector disposed inside the building, adjacent to the first exterior load wall; three separate ups and substation distribution equipment rooms, each containing ups and substation distribution equipment therein, as well as air conditioning equipment that is connected to certain of the plurality of condenser unit devices; and a power spine room disposed between the three separate ups and substation distribution equipment rooms and the data sector, the power spine room including a plurality of pdu devices..
|Hvac system remote monitoring and diagnosis|
A monitoring system for a heating, ventilation, and air conditioning (hvac) system of a building includes a monitoring device installed at the building, a monitoring server located remotely from the building, and a review server. The monitoring device measures an aggregate current supplied to components of the hvac system and transmits current data based on the measured aggregate current.
|Air conditioning device|
The air conditioning device discharges ions into air inflowing through an inflow port and outflows the air from the outflow port. The air conditioning device includes an air passage branched into a first passage connected to a peripheral region including a part of a space close to an inner surface of the outflow port and a second passage connected to a central region including a center of the outflow port.
|Outdoor unit for air conditioning device|
A spray nozzle of an outdoor unit is provided with: an air guide portion through which air flows; a water guide portion through which water flows and which causes the air flowing through the air guide portion to flow into water to form water containing a large number of bubbles; and a spray portion that is located downstream of the water guide portion in a direction of water flow and sprays, to the outside, the water containing a large number of bubbles which is formed in the water guide portion.. .
|Battery holder for an electronic device|
A heating, ventilation, and air conditioning (hvac) controller may include a housing and a printed circuit board (pcb) situated within the housing. The pcb may include a battery seat region and electrical terminals for electrically connecting a battery to the pcb when the battery is positioned at the battery seat region.
A heating, ventilating and air conditioning (hvac) assembly that includes a duct and a coil assembly coupled to the duct. A supply line and return line are connected to the coil assembly.
|Hvac system remote monitoring and diagnosis|
An apparatus for monitoring a heating, ventilation, or air conditioning (hvac) system includes an indoor unit monitor module electrically connected to a current sensor and first and second refrigerant temperature sensors. The current sensor generates a first current signal based on aggregate current consumed by components of an indoor unit of the hvac system.
|Air conditioning system utilizing heat recovery ventilation for fresh air supply and climate control|
The vehicle ventilation module includes a return air duct, a fresh air duct, a heat exchanger, and first and second doors. The return air duct has a return air inlet and a return air outlet downstream of the return air inlet.
|Hvac door with intersecting surface configurations|
A fluid distribution door for use in a heating, ventilating, and air conditioning system includes a main body having a first surface and a second surface. The first surface and the second surface cooperate to form a first surface configuration which intersects with a second surface configuration.
|Hvac unit test apparatus and method therefor|
A method to test a heating ventilation and air conditioning (hvac) unit for external leaks is disclosed. The hvac unit includes a first and a second port and is coupled to an auxiliary air movement test system using one of the first or the second ports.
|Air conditioning system utilizing thermal capacity from expansion of compressed fluid|
A vehicle air conditioning system is provided. The vehicle air conditioning system includes a first vapor compression refrigeration loop.
|Methods and systems for mini-split liquid desiccant air conditioning|
A split liquid desiccant air conditioning system is disclosed for treating an air stream flowing into a space in a building. The split liquid desiccant air-conditioning system is switchable between operating in a warm weather operation mode and a cold weather operation mode..
|Modular air grill assembly|
A modular air grill is taught having a removable return register and a removable supply register. The supply register may be replaced with a blank when adequate cooling or rapid cooling has occurred and the cooling through the ducts is desired rather than immediately adjacent to an air conditioning unit..
|Apparatus and methods for heating water with refrigerant from air conditioning system|
An apparatus for heating water has a tank for storing water and an air conditioning system that defines a refrigerant flow path through which refrigerant flows. The refrigerant flow path passes through the heat exchanger so that refrigerant heat is contributed to the tank.
|Air conditioning system including pressure control device and bypass valve|
An air conditioning system includes: first and second utilization side heat exchangers and a heat source side heat exchanger respectively connected in series; a compressor connected between the first utilization side heat exchanger and the heat source side heat exchanger; an expansion valve connected between the first utilization side heat exchanger and the second utilization side heat exchanger; a pressure control device connected between the second utilization side heat exchanger and the heat source side heat exchanger; and a bypass valve connected between the expansion valve and the heat source side heat exchanger. The bypass valve provides a variable amount of liquid refrigerant flowing from the expansion valve to the heat source side heat exchanger.
|Methods and systems for liquid desiccant air conditioning system retrofit|
Methods and systems are disclosed for utilizing liquid desiccant air conditioning systems in connection with existing hvac equipment to achieve reductions in electricity consumption.. .
|Apparatus and methods for pre-heating water with air conditioning unit or heat pump|
Water heater apparatus includes a tank for storing water; a heat exchanger associated with the tank and being operative to receive refrigerant and transfer heat therefrom to the tank, the heat exchanger representatively being a heat conductive tube externally wrapped around the tank in heat conductive contact therewith; air conditioning apparatus operative to utilize refrigerant flowing through a refrigerant circuit portion of the air conditioning apparatus, the refrigerant circuit portion being in fluid communication with the heat exchanger; and a control system operative to selectively cause a portion of the flowing refrigerant to pass through the heat exchanger, or cause essentially the entire flow of the refrigerant to bypass the heat exchanger.. .
|System and method for an adjustable channel for an air conditioning line set|
A system including at least one duct comprising a first portion defining a plurality of receiving members formed along a sidewall of the first portion and a second portion including an engaging member extending from a sidewall of the second portion, said engaging member being configured to selectively engage one receiving member of the plurality of receiving members to secure the first and second portions together with an opening of an adjustable size therebetween, and a connector to attach to an end of the duct, the connector having a first connector portion with an exterior surface defining a hole, a second connector portion including a housing defining a hole, and a fastener configured to pass through the hole in the exterior surface and the hole in the housing to secure the first and second connector portions together with an opening of an adjustable size therebetween corresponding to a respective size of the at least one duct.. .
|System and method for an adjustable channel for an air conditioning line set|
A system is presented for covering a plurality of line sets with respective sizes. The system includes a first portion defining a plurality of slots formed along a sidewall of the first portion.
|Air conditioning flashing hood|
An air conditioning flashing hood adapted to be connected to the wall structure and extend through the exterior wall of the structure to provide a passage through which a refrigerant line and an electrical control line may extend to communicate with an external compressor. The air conditioning flashing hood includes an internal sealing element which compresses against the outer surface of the refrigerant line and the electrical control line to form a substantially weather-tight seal therebetween to mitigate fluid migration along the lines into the structure, as well as to provide a barrier for any bugs, debris or animals to keep such undesirable objects from entering the structure..
|Systems for heating, ventilation, and air conditioning applications|
A motor control system for heating, ventilation, and air conditioning (hvac) applications is described. The motor control system includes a thermostat and an electronically commutated motor (ecm) coupled to the thermostat.
|Air conditioning device for vehicle|
An air conditioning device for a vehicle, comprising an intake portion that is provided at a cabin side at a vehicle ceiling portion, and that takes-in air; a blow-out portion that is provided at the cabin side at the vehicle ceiling portion, and that blows out, into the cabin, air that has been taken-in from the intake portion; and a blower device that is provided at the vehicle ceiling portion and that, by operating, blows air from the intake portion toward the blow-out portion, the blower device being disposed at a vehicle front-rear direction rear side of a bulging portion that bulges toward the cabin side and that accommodates a sunroof that opens and closes a roof opening portion that is formed in the vehicle ceiling portion.. .
|Method of controlling indoor temperature|
A method of controlling a temperature in a room includes the following steps: 1) sense a volume of sound in the room to obtain a sensed volume; and 2) control an output of an air conditioning unit to keep a temperature in the room in a first temperature while the sensed volume is higher than a volume value; or control an output of the air conditioning unit to keep a temperature in the room in a second temperature while the sensed volume is lower than the volume value and lasts for a first waiting time. A power consumption of the air conditioning unit to keep the temperature in the second temperature is lower than a power consumption of the air conditioning unit to keep the temperature in the first temperature to reduce the unnecessary power consumption when there is nobody in the room..
|Systems and methods for controlling energy use in a building management system using energy budgets|
Systems and methods for limiting power consumption by a heating, ventilation, and air conditioning (hvac) subsystem of a building are shown and described. A mathematical linear operator is found that transforms the unused or deferred cooling power usage of the hvac system based on pre-determined temperature settings to a target cooling power usage.
|Functional air conditioning apparatus and functional air conditioning method|
To provide an air-conditioning apparatus and an air-conditioning method with which air can be highly sterilized and cleaned not only in houses, but also in various facilities such as offices and factories, and, safe, pleasant, and healthy living space can be obtained, in a functional air-conditioning apparatus utilizing ground heat provided with a flow piping p which sucks air a in a room r or outside s from a suction opening pa, sends the air a into ground g to make the air a heat-exchanged with the ground g, and blows the heat-exchanged air a into the room r through a blow opening pb; the flow piping p is provided with a reciprocating pipe 10 for heat exchange having a going portion 11 to send the air a into the ground g and a returning portion 12 to return the air a heat-exchanged with ground heat under the ground, and a sterilizer 2. In which disinfectant liquid w is reserved, is disposed between the blow opening pb and a ground exhaust opening 10b of the reciprocating pipe 10 for heat exchange..
|Desiccant air conditioning methods and systems|
A desiccant air conditioning system for treating an air stream entering a building space, including a conditioner configured to expose the air stream to a liquid desiccant such that the liquid desiccant dehumidifies the air stream in the warm weather operation mode and humidifies the air stream in the cold weather operation mode. The conditioner includes multiple plate structures arranged in a vertical orientation and spaced apart to permit the air stream to flow between the plate structures.
|Vehicle air conditioning apparatus|
A vehicle air conditioning apparatus can ensure that the temperature of the air supplied to the vehicle interior is a preset temperature by securing the quantity of heat release for the radiator during a cooling and dehumidifying operation. The valve opening of the condensing pressure regulating part of the first control valve is smaller when the calculated opening sw of the air mix damper is equal to or more than the predetermined value than when the opening sw is smaller than the predetermined value.
|Heating, ventilation, and air conditioning system|
A high-efficiency hvac system and method of operation, for use in a house or building, having a plurality of components, including flexible, plastic duct tubing forming supply pipes that connect an air handler and a plurality of zones to deliver supply air to the zones and return pipes that connect the air handler and the zones to re-circulate return air; the air handler having a fan assembly powered by a variable blower motor to blow supply air to the zones; a heat pump having a variable compressor powered by a variable compressor motor to direct a working fluid to and from the air handler and a variable fan motor that rotates a fan blade within the heat pump; and a circuit control system for adjusting the variable compressor motor and the variable fan motor in the heat pump and the variable blower motor in the air handler.. .
|Refrigerant lubricant composition|
A pag lubricant basefluid for use with a fluoroalkene refrigerant, the basefluid containing a pag having the formula: rx(rao)x(rbo)yrc, where r is selected from alkyl groups having from 1-10 carbon atoms, acyl groups having from 1-10 carbon atoms, aliphatic hydrocarbon groups having from 2-6 valencies, and substituents containing a heterocyclic ring in which the heteroatom(s) are oxygen; x is o or s; ra is a c2 alkylene group; rb is a c3 alkylene group; rc is the same as r or is an h; x and y are each independently 0 or an integer ≦100; and the sum of x+y is an integer in the range of from about 5-100. Refrigeration and lubricant compositions containing the pag lubricant basefluid and a method of operating a motor-integrated compressor of a refrigeration or air conditioning system with substantially no electrical leakage current are also provided..
|Refrigerant additive compositions containing perfluoropolyethers|
The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity, or energy efficiency of a refrigeration, air conditioning or heat transfer system.. .
|Condensate drain trap for an air conditioning system|
A condensate drain trap for an air conditioning system. The abstract of the disclosure is submitted herewith as required by 37 c.f.r.
|Humidity sensor diagnostics|
Embodiments for diagnosing a humidity sensor are provided. One example method comprises, responsive to a humidity sensor test cycle, pumping air conditioning and windshield washer gas flows past a humidity sensor, and indicating humidity sensor degradation based on a response of the humidity sensor to the air conditioning and windshield washer gas flows.
|Air conditioning apparatus|
An air-conditioning apparatus has different two modes including a response detection diagnosis in which a control unit diagnoses a trouble of a component device during the trouble diagnosis operation based on presence or absence of a response from the operational state sensor when the mode has forcibly changed the device operation, and a performance detection diagnosis in which a trouble is detected by a detection value of the operational state sensor at a time when the operational state of the trouble diagnosis operation is stable, and the performance detection diagnosis is executed after the response detection diagnosis is executed.. .
|Humidity control for air conditioning system|
An air conditioning system includes a cooling unit having a cooling coil and a fan, the cooling unit for cooling recirculated air from a return duct; a bypass duct providing an air pathway bypassing the cooling unit; a phase change material (pcm) module including a pcm and a pcm fan for drawing makeup air over the pcm; and a supply duct fluidly coupled to the cooling unit and the pcm module, the supply duct for supplying conditioned air to a space to be conditioned.. .
|Theft detection in hvac unit having persistent alarm|
A notification system for an air conditioning system includes a power source, first and second connectors, first and second switches, and a notification device. The power source has first and second power terminals.
|Permanent magnet embedded motor and compressor, blower, and refrigerating and air conditioning apparatus using permanent magnet embedded motor|
A permanent magnet embedded motor includes a rotor and permanent magnets. The outer circumferential surface of the rotor is formed by divided outer circumferential surfaces divided at equal angle intervals in a circumferential direction corresponding to permanent magnets.
|Hybrid air conditioning system|
A hybrid air system is provided for conditioning the air in a building and includes first and second independent air conditioning systems, one system having a larger capacity than the other and an independent dehumidifier each work independently and together to control the air on the inside of the building. The hybrid system improves air comfort while increasing efficiency and reducing operating costs and use of energy..
|System for reducing the condensing temperature of a refrigeration or air conditioning system by utilizing harvested rainwater|
An evaporative air conditioning heat transfer apparatus comprising a collection surface for diverting liquid into a channel, a reservoir capable of receiving and storing the diverted liquid, at least one conduit for transferring liquid from the reservoir to a liquid dispersion point, and a regulator positioned between the reservoir and the liquid dispersion point and configured to control the amount of liquid released at the liquid dispersion point, wherein the liquid dispersion point is configured to distribute the liquid over a condensing coil.. .
|Auxiliary hvac system for a vehicle|
A system for decreasing the response time of a vehicle heating ventilation and air conditioning (“hvac”) system is described. A fan circulates air through a hvac casing.
|Hot water supply air conditioning system|
A hot water supply air conditioning system performs a first cold-storage operation, a second cold-storage operation, and a cold-used air-cooling operation. In the first cold-storage operation, a hot-water-supply-side heat exchanger serves as a condenser, and a thermal-storage-side heat exchanger serves as an evaporator.
|Vehicle idle time reduction system and method|
A system for reducing idle time in service vehicles such as police patrol cars. A bank of auxiliary batteries is provided.
|Method of controlling heat pump system of electric vehicle|
A method of controlling a heat pump system of an electric vehicle, whereby power consumed for air conditioning is reduced during driving in a low load state in a heating mode, includes determining whether a heat dissipation amount insufficient condition of an indoor condenser is satisfied in the heat pump system of the electric vehicle. When it is determined that the heat dissipation amount insufficient condition of the indoor condenser is satisfied, measuring current revolutions per minute (rpm) of a compressor.
|Air conditioning indoor unit|
An air conditioning indoor unit includes a movable first air direction adjustment plate that changes an up and down direction of the outlet air, a second air direction adjustment plate disposed adjacent to the air outlet, and a control unit that controls postures of the first and second adjustment plates. The second adjustment plate has at least a front end portion housed in an indoor unit front portion outside a blowing path when housed.
|Air vent and method of control thereof|
Embodiments of the invention provide air conditioning system for use in a motor vehicle, the air conditioning system comprising a controller, at least one primary vent and an air delivery apparatus for location in a dashboard of a motor vehicle, the apparatus comprising: at least one secondary vent; and means for moving the at least one secondary vent between a retracted position in which the at least one secondary vent lies rearward of an a surface of the dashboard and a deployed position in which the at least one secondary vent is exposed for delivery of air to a zone of the vehicle, the controller being operable to: control the air conditioning system to provide a flow of air from the at least one primary vent while the air delivery apparatus is in a retracted position; and control the at least one vent to assume the deployed position responsive to a demand for a flow of air from the at least one secondary vent.. .
|Hvac system with noise reducing tube|
A heating, ventilation, and/or air conditioning (hvac) system has a fan component defining a radially interior space and a radially exterior space and a tube disposed in the radially exterior space, the tube being in fluid communication with the radially interior space at a first angular location and a second angular location different from the first angular location.. .
|Dehumidification system for air conditioning|
An air temperature and humidity control device is provided including a heat pump and a humidity controller. The heat pump has a condenser, a first evaporator, a compressor, and a second evaporator.
|Solar thermal air conditioning unit|
A solar thermal air conditioning unit is provided. The solar thermal air condition unit includes a pressurized water tank with a water entrance port for receiving water.
An air-conditioning apparatus includes a refrigeration cycle that includes an intermediate heat exchanger configured to exchange heat between a heat source side refrigerant and a heat medium different from the heat source side refrigerant, a heat medium circuit that includes at least one pump configured to circulate the heat medium related to heat exchange in the intermediate heat exchanger, a use side heat exchanger configured to exchange heat between the heat medium and air related to an air-conditioned space, and flow switching valves. A controller is configured to perform control to activate the pump to circulate the heat medium through the heat medium circuit when, during suspension of an air conditioning operation, the detected temperature of outdoor air is at or below a first predetermined temperature and a first predetermined period of time has elapsed since the pump was stopped..
|Heat exchange apparatus and method for controlling heat exchange apparatus|
A heat exchange apparatus that exchanges heat between a refrigerant and a temperature-regulated section has: a compressor; a first heat exchanger that exchanges heat between the refrigerant and outside air; a second heat exchanger that exchanges heat between the refrigerant and air for air conditioning; an opening-adjusting valve that adjusts a degree of opening of a path of the refrigerant between the first heat exchanger and the temperature-regulated section; an expansion valve that is disposed in a path of the refrigerant between the temperature-regulated section and the second heat exchanger, and that reduces a pressure of the refrigerant; and an ecu that controls a degree of opening of the opening-adjusting valve. The ecu increases the degree of opening of the opening-adjusting valve to thereby heat the temperature-regulated section, and reduces the degree of opening of the opening-adjusting valve to thereby cool the temperature-regulated section..
|Programmable multimedia controller with flexible user access and shared device configurations|
In one embodiment, a programmable multimedia controller that is capable of interfacing with and controlling audio, video, telephony or heating ventilation, and air conditioning (hvac) devices. A first mobile device and a second mobile device of a same type are configured to communicate with the programmable multimedia controller.
|Heater interlock control for air conditioning system|
A method is provided for controlling operation of electrical heating elements in a heating, ventilating, and air conditioning (hvac) system in accordance with fan operating conditions, the method comprising the steps of: monitoring speeds at which a fan motor is operating; communicating status signals indicative of fan motor operating speeds; and upon receiving a status signal indicating the fan motor is operating at a speed exceeding a predetermined maximum speed, communicating a control signal instructing a heater interlock to interrupt power supplied to at least one electrical heating element.. .
|Hvac system with camera and microphone|
A heating, ventilation, and air conditioning (hvac) system has an input configured to receive at least one of a first heating setting, a first ventilation setting, a first cooling setting, a first humidity setting, and a first air quality setting, at least one of an image sensor and a microphone connected to at least one component in the hvac system, the image sensor and/or microphone being configured to capture an data from a first zone, and a controller connected to the input and at least one of the image sensor and microphone, the controller configured to control at least one of the first heating setting, the first ventilation setting, the first cooling setting, the first humidity setting, and the first air quality setting in response to receiving the data from at least one of the image sensor and the microphone.. .
|Hvac system with selective flowpath|
A heating, ventilation, and/or air conditioning (hvac) system has a furnace comprising a furnace heat exchanger and an indoor hvac unit comprising a refrigerant heat exchanger and at least one of a component of the furnace and a component of the indoor hvac unit are selectively removable from an airflow path of the hvac system.. .
|Heating, ventilating, and air conditioning system with an exhaust gas thermal energy exchanger|
A heating, ventilating, and air conditioning system for a vehicle has a control module including a housing having an air flow conduit formed therein. An evaporator core is disposed in the air flow conduit, wherein at least a portion of the evaporator is configured to receive a first fluid from a first fluid source therein.
|Air conditioned and ambient fresh air supply system for respirator users|
A portable air conditioning and ambient fresh air supply system that provides ambient fresh or conditioned air to a user wearing a respirator. The apparatus comprises a cabinet having an upper chamber and a lower chamber.
|Motor cycle air conditioning system|
A motor cycle personal cooling system is disclosed that utilizes waste heat employing solid adsorption. The system includes an air distribution module and one or more desiccant chambers encircling the exhaust pipes of the motor cycle.
|Communication module, multi-type air conditioning apparatus using the same, and control method thereof|
A multi-type air conditioning apparatus including an outdoor unit, indoor units, and a communication line, each of the outdoor unit and the indoor units including a communicator transmitting/receiving data through the communication line and a controller transmitting at least one preamble signal, including priority information to transmit the data using the communication line, through the communication line, and transmitting the data through the communication line when transmission of the at least one preamble signal has been completed. In the multi-type air conditioning apparatus, each of the outdoor unit and the indoor units selects a priority set time, transmits a preamble signal after the selected priority set time has elapsed, and delays data transmission when a preamble signal transmitted by another constituent unit is sensed during the priority set time, thus avoiding collision on the communication line and rapidly occupying the communication line..
|Hvac heat exchangers|
The invention relates to a heating, ventilation, and air conditioning (hvac) system for a motor vehicle, the hvac system having a length greater than a width and disposed with the length parallel to a longitudinal axis of the motor vehicle and between the front seats thereof. The hvac system includes a plurality of heat exchangers disposed within a housing thereof..
|Supplemental thermal storage|
The present technology relates to a heating, ventilation, and air conditioning (hvac) system for a motor vehicle with supplemental thermal storage, the hvac system having a length greater than a width and disposed with the length parallel to a longitudinal axis of the motor vehicle between the front seats thereof. The hvac system includes a blower assembly disposed beneath an instrument panel of the motor vehicle or inside an engine compartment.
The invention relates to a heating, ventilation, and air conditioning (hvac) system for a motor vehicle, the hvac system having a length greater than a width and disposed with the length parallel to a longitudinal axis of the motor vehicle between the front seats thereof. The hvac system includes a blower assembly disposed beneath an instrument panel of the motor vehicle or inside an engine compartment..