Air handling unit and method of installing same

Abstract

Air handling unit (1), AHU, comprising a plurality of modules (100), wherein each module (100) comprises: a sensor (101) configured to detect a value of a physical property and generate a control signal (101'); an actuator (102) configured to perform an air handling operation; and a peripheral controller (103) connected with the sensor (101) to receive the control signal (101') and with the actuator (102) to control it through a command signal (102'). The modules (100) of the plurality are operatively interconnected according to a predetermined layout. The air handling unit (1), AHU, comprises a central control unit (200) connected with each peripheral controller (103) to exchange signals with each peripheral controller (103). Each peripheral controller (103) of the modules (100) of the plurality is programmable with the possibility to change the control logic in response to the positioning of the corresponding module (100) within the predetermined layout and / or according to the sensors and actuators connected with the corresponding peripheral controller.

Description

Technical Field

[0001] This invention relates to an air handling unit (AHU) and a method for installing the air handling unit (AHU). Background Technology

[0002] Air handling units are configured to be installed in the operating space to ventilate or regulate thermodynamic parameters of the operating space itself or another space located away from the AHU. In most cases, the operating space is very large and the AHU comprises multiple modules. Each of these modules is positioned within the operating space according to a pre-designed layout to regulate a specific operating area.

[0003] The AHU is divided into multiple modules for easier transport. In the field, the AHU can be reassembled into a single unit (as a box), or in some cases, some modules can be located in different operating areas of the operating space.

[0004] Each of the plurality of modules has at least one actuator and at least one sensor, the actuator being configured to perform air conditioning operations and the sensor being configured to receive control signals representing the physical properties of the operating space.

[0005] The AHU includes a central control unit for controlling multiple modules.

[0006] The AHU can be standard or customized to specific specifications. In the latter case, the layout is designed based on the operating space required to install the AHU and the specifications provided by the customer. Therefore, for each new installation, the peripheral controller must be programmed according to the customized design, which in turn depends on the customization request.

[0007] In known solutions, to achieve a custom design, actuators and sensors for each component are wired to obtain customized logic control. Before installation, the AHU must be temporarily installed to check its proper functioning, then disassembled and reinstalled in the field. However, this operation is time-consuming and is affected by a certain probability of error during field wiring.

[0008] In other solutions, to avoid field wiring of all sensors and actuators, the sensors and actuators are connected to an external terminal, which is wired during module assembly. Therefore, during field installation, the operator only needs to connect the module.

[0009] However, this approach is also susceptible to human error when connecting modules.

[0010] Solutions affected by the above-mentioned drawbacks are disclosed in the following documents: US2014 / 303789, US2018 / 224144 and US5682329. Summary of the Invention

[0011] The scope of this invention is to overcome the above-mentioned disadvantages.

[0012] This scope is achieved by the air handling unit (AHU) of this disclosure that overcomes at least one of the aforementioned disadvantages, and by the method for installing the air handling unit (AHU).

[0013] According to one aspect of this disclosure, this specification provides an air handling unit (AHU, hereinafter referred to as AHU). The AHU includes multiple modules (operating sections).

[0014] In one embodiment, this specification provides an air handling system including a plurality of air handling units (AHUs). In this embodiment, each AHU defines a module of the air handling system.

[0015] At least one module includes a corresponding sensor. In one embodiment, each module includes a corresponding sensor. The sensor is configured to detect values ​​of physical properties. The sensor is configured to generate control signals. At least one module includes a corresponding actuator. In one embodiment, each module includes a corresponding actuator. The actuator is configured to perform air handling operations. The actuator may be a valve for regulating the flow of chilled water, hot water, or refrigerant fluid. The actuator may be a fan. The actuator may be a baffle.

[0016] In one implementation, the module may include both a sensor and an actuator, while in another implementation, the module may include only one of the sensor and the actuator.

[0017] In one implementation, each module includes a corresponding peripheral controller.

[0018] Each controller is connected to a corresponding sensor to receive control signals. Each controller is also connected to an actuator to control it via command signals.

[0019] In one embodiment, each module may include multiple sensors, each connected to a peripheral controller. In another embodiment, each module may include multiple actuators, each connected to a peripheral controller.

[0020] Modules within a plurality of modules are operatively interconnected according to a predetermined layout. This layout is determined during the design phase, where it is implemented according to custom specifications.

[0021] The AHU includes a central control unit. The central control unit connects to each module (or each peripheral controller) to exchange signals with each peripheral controller. The central control unit also connects to each peripheral controller to supply them with power.

[0022] In one implementation, each peripheral controller of a module in a plurality of modules is programmable.

[0023] In one example, each peripheral controller of multiple modules is programmable after being installed in a predetermined configuration location. Each peripheral controller is structurally adapted to be installed in any location within the predetermined configuration. For example, each peripheral controller includes the same number of connections. In one example, all peripheral controllers have identical hardware, i.e., they have the same structural configuration; this makes it particularly easy to replace one peripheral controller with another. The characterization of each peripheral controller is performed after its actual installation.

[0024] In relation to this disclosure, the term "operating space" may refer to the total space for thermal regulation or a specific area of ​​the total space in which modules are placed according to a predetermined layout.

[0025] Therefore, each operating area can be a room in the total space where a certain module is placed, or simply the location of a certain module within a box containing that unit, i.e., its position.

[0026] In other words, the peripheral controller manages (controls) the corresponding sensors and actuators based on the control logic mounted on the peripheral controller. In one embodiment, the control logic may be updated based on the sensors and / or actuators connected to the corresponding peripheral controller. In another embodiment, the control logic may be updated based on the position of the corresponding modules within a predetermined layout.

[0027] Please note that a peripheral controller can simply be configured as a converter to transform analog signals into digital signals. Therefore, in a more general definition, control logic represents the operation (or even just the transformation) performed on the analog and / or digital signals received by the peripheral controller.

[0028] The term "location" refers to the role, function, or physical location of a module in the AHU's operating space.

[0029] In a preferred embodiment, the control unit is programmable. In other words, the central control unit is configured to receive programming data representing control logic operating on it. Preferably, this data includes information about each peripheral control unit and the sensors and / or actuators connected thereto. In this way, the central control unit knows precisely which signals it should receive from each peripheral controller. Therefore, whenever the central control unit receives a signal that does not conform to the expected signal, it can alert the peripheral control units.

[0030] The control unit has the ability to change the control logic to control each peripheral controller based on the positioning of the corresponding module within a predetermined layout.

[0031] This means that the AHU can approach control in two different ways. According to the first embodiment, the control of actuators and sensors can be partially performed by the respective peripheral controllers (e.g., for those controls that do not require feedback from sensors and actuators in other modules), and can also be accomplished by control performed by the central control unit (e.g., for those controls that require feedback from sensors and actuators in different modules).

[0032] In other words, the control unit controls the sensors and actuators of the AHU according to the control logic mounted on it, which is programmed to control the sensors and actuators in response to their positioning (function) in the operating space.

[0033] In one implementation, each peripheral controller is configured to collect signals from a corresponding sensor, preferably in the form of analog signals. Each peripheral controller is configured to convert the analog signals into digital signals. Each peripheral controller is configured to send the digital signals to the control unit.

[0034] In one implementation, each peripheral controller is programmed before it is connected and configured into the corresponding module. After the peripheral controller is programmed, the AHU provides a printer to print labels indicating the connection and specifications of the respective peripheral controller.

[0035] Each peripheral controller includes multiple connections. Preferably, each connection is identified by color and / or the number of pins connected. Each color represents a specific sensor and / or a specific actuator. Therefore, when assembling the AHU in the field, the colors prevent the operator from making incorrect connections, as the connectors for the sensors and actuators he has have colors corresponding to those provided in the respective peripheral controllers.

[0036] In one implementation, each peripheral controller is programmed after it has been connected and configured into the corresponding module. In other words, the control logic is updated in the field. This implementation provides the possibility of manufacturing multiple modules that are similar to each other and can be positioned within each location of a predetermined layout of modules. Therefore, the chance of error is greatly reduced and flexibility is increased. In fact, after they are positioned, each module can be programmed according to its actual configuration location. Furthermore, the standardization of modules provides additional advantages by simplifying the manufacturing process.

[0037] In other words, each of the peripheral controllers includes the same number of connections (i.e., the same number of inputs and / or the same number of outputs) and / or the same computing power, allowing it to be positioned anywhere within a predetermined layout. This significantly reduces installation errors.

[0038] Each peripheral controller is configured to be programmed according to its installation location. In other words, each peripheral controller is programmed after it is placed. The operator can identify the location where he has just positioned the peripheral controller, select that location from the default configuration location list in the mobile programming device, and the mobile programming device automatically installs the program corresponding to that specific location.

[0039] In one example, each of the multiple modules includes a proximity receiver. The proximity receiver is configured to receive data representing control logic. The peripheral controller can be programmed using Near Field Communication (NFC) technology via the proximity receiver. Alternatively, the peripheral controller can be programmed using RFID transmission technology via the proximity receiver.

[0040] In one implementation, the peripheral controller includes a Modbus node. In another implementation, the Modbus node also integrates sensors and / or actuators.

[0041] In one implementation, each of the plurality of modules includes a control container.

[0042] Each control container includes an outer housing. The outer housing defines an internal volume. Each peripheral controller is housed within the internal volume of its respective control container. In this way, each peripheral controller is protected from contact and ultimately from damage.

[0043] In one embodiment, each control container includes a corresponding diaphragm (or partition wall or lid). Each diaphragm (partition wall or lid) is configured to divide a corresponding internal volume into a first volume and a second volume. In one embodiment, each control container includes a corresponding plurality of connectors. The plurality of connectors are configured to connect a peripheral controller to a corresponding sensor and / or a corresponding actuator. In one embodiment, the first volume houses the corresponding peripheral controller. In one embodiment, the second volume houses the corresponding plurality of connectors. With this arrangement, the peripheral controller is not touched even while the sensor and / or actuator is being connected to it.

[0044] In another embodiment, each control container includes a corresponding lid, preferably made of plastic. The plastic lid is configured to define a first volume containing the peripheral controller. The plastic lid at least partially surrounds the corresponding peripheral controller, thereby preventing damage to it during connection. The plastic lid is placed on the peripheral controller.

[0045] The plastic cover includes an LED light guide to direct the light from one or more LEDs of the corresponding peripheral controller.

[0046] In one embodiment, each peripheral controller includes an indicator light. The indicator light indicates the operating status of the corresponding module, such as an indication of normal module operation or a module malfunction. In one embodiment, each control container includes an inspection opening through which the light of the corresponding peripheral controller can be seen from the outside. In one embodiment, the indicator light is located on the peripheral controller.

[0047] Therefore, the status of indicator lights and modules can be checked from the outside without opening the control container.

[0048] In one embodiment, a proximity receiver is arranged on the outer surface of the corresponding control container.

[0049] The central control unit is connected to each peripheral controller via power cables for powering the corresponding modules. The central control unit is also connected to each peripheral controller via signal cables. In one embodiment, the control cable signals define a Modbus connection to the Modbus node of each module.

[0050] In one implementation, the AHU includes one or more of the following actuators:

[0051] -Water valve;

[0052] -Damper;

[0053] -Air plasma ionizer;

[0054] -Damper actuator;

[0055] -UV lamp;

[0056] -switch.

[0057] In one implementation, the actuators of the modules among the plurality of modules are configured to perform one or more of the following operations:

[0058] - Forced air circulation from outside the corresponding operating area and back to the corresponding operating area;

[0059] - Forced air circulation from inside the operating area to outside the operating area;

[0060] - Used for heat exchange to cool or heat air;

[0061] - The mixing of forced airflow from the outside and forced airflow from the operating area;

[0062] - Air humidification and dehumidification;

[0063] - Air renewal in the operating area to reduce CO2 or CO or VOC or PM or radon concentration and / or other gas concentrations;

[0064] - Air filtration and renewal to reduce particulate matter and volatile organic compound concentrations;

[0065] - Air filtration and renewal to reduce the concentration of bacteria and viruses;

[0066] - Air filtration and renewal to reduce radon concentration.

[0067] The control signals are at least partially digital signals and / or analog signals.

[0068] Sensors that detect temperature, pressure, humidity, and CO2 are analog sensors.

[0069] In one implementation, the AHU includes one or more of the following digital sensors:

[0070] - The amount of CO2 and CO;

[0071] -Airflow rate and mass flow rate;

[0072] - Particulate matter (PM1-PM2.5-PM10);

[0073] - Volatile organic compound detector;

[0074] - Sound level;

[0075] -Gas concentration and emissions;

[0076] - Light and electromagnetic radiation;

[0077] -Heat flux;

[0078] -Smoke is present;

[0079] - Motor vibration sensor;

[0080] - Fan vibration sensor;

[0081] - Relative humidity sensor;

[0082] - Radon sensor;

[0083] - Pressure sensor;

[0084] -Differential pressure sensor;

[0085] - There are sensors present.

[0086] In one implementation, the control unit is configured to execute one or more of the following alarms: - fan alarm;

[0087] -DX alarm;

[0088] - Battery alarm;

[0089] -Heat recovery alarm;

[0090] - Heater alarm;

[0091] - Cooling / heating pump alarm;

[0092] - Humidifier pump alarm;

[0093] -Isothermal humidifier alarm;

[0094] -Fire alarm;

[0095] - Failure of electrical and mechanical components;

[0096] -overheat;

[0097] - Voltage drop or rise;

[0098] - Rotor failure;

[0099] - Filter replacement;

[0100] -Motor alarm;

[0101] -CO2 concentration exceeds the limit;

[0102] - PM concentration exceeds the limit;

[0103] -VOC concentration exceeds the limit;

[0104] - Radon concentration exceeds the limit.

[0105] The AHU disclosed herein is configured to allow end customers to freely customize the AHU module using dedicated selection software. After customization, the software is programmed to send the customized AHU to the operator's terminal. The operator's terminal programs the AHU module based on the received customized AHU. Furthermore, the operator's terminal is programmed to automatically display the AHU layout based on the customized AHU selected by the customer.

[0106] In addition, the control software is programmed to present electrical modes as "as-built" that must be delivered to the customer. Furthermore, the control software programs the main controller and modules, teaching them the "Modbus" address of each sensor to be connected to each module.

[0107] All these features improve the system's reliability and flexibility. Furthermore, they simplify system assembly and AHU electrical connections, allowing even users without technical expertise to perform these tasks.

[0108] In one implementation, in the event of a peripheral controller failure, the AHU system includes a maintenance terminal, which may be the same terminal used by the operator during installation. This terminal is programmed to receive configuration data from the damaged peripheral controller. This configuration data represents the program running on the damaged peripheral controller. This communication can be accomplished via an NFC connection. The terminal is then programmed to transmit the configuration data to a new peripheral controller, for example, via an NFC connection. Finally, only the peripheral controller should be replaced, thus posing no difficulty and minimizing the chance of error.

[0109] According to one aspect of this specification, this specification provides a method for installing an air handling unit (AHU) in an operating space.

[0110] The method includes the step of providing multiple modules, each module including a sensor and / or actuator and a peripheral controller for controlling the sensor and / or actuator.

[0111] The method includes the step of providing a central control unit.

[0112] The method includes the step of positioning each module in a corresponding operating area of ​​the operating space (or in a corresponding operating position in a predetermined layout).

[0113] The method includes the step of connecting a central control unit to each peripheral controller of a plurality of modules to exchange signals with the corresponding peripheral controller of each module.

[0114] The method includes a programming step in which each peripheral controller of one of the multiple modules is programmed by installing corresponding control logic. The control logic is selected based on the sensors and / or actuators connected to the corresponding peripheral controller.

[0115] The method includes a field programming step, in which, preferably after the positioning phase, each peripheral controller of one of the multiple modules is programmed by installing corresponding control logic. The control logic is selected based on the operating area in which the module is located.

[0116] However, control units and / or peripheral controllers can also be programmed at the factory during quality control before they are shipped to the field.

[0117] In one implementation, the (field or factory) programming step is performed via a proximity data transmission step. In the proximity data transmission step, the operator brings the programming device closer to the proximity receiver of each peripheral controller of one of the multiple modules. During this step, the programming device sends control data to the corresponding module to install the appropriate control logic.

[0118] In one embodiment, the method includes a wiring phase in which sensors and / or actuators are connected to peripheral controllers via multiple connectors. In this phase, the multiple connectors are spaced apart from their respective peripheral controllers to prevent damage during the wiring phase.

[0119] According to another aspect of this disclosure, this specification provides a method for programming control logic on multiple modules of an air handling unit (AHU) using a programming device, said programming device including a processor.

[0120] The method includes the step of receiving layout data representing a predetermined layout. Modules of a plurality of modules are operatively interconnected according to the predetermined layout. Modules of the plurality of modules are positioned in an operating space according to the predetermined layout.

[0121] The method includes the step of receiving control data representing multiple control logics. In other words, the control data is a set of data to be installed in a general-purpose processor to instruct it to execute specific control logic.

[0122] Each control logic is associated with a corresponding module among the plurality of modules. The control logic is associated with the corresponding module based on the arrangement of the modules in a predetermined layout. The control logic can be associated with the corresponding module via input from an operator designing the control. In other embodiments, the processor retrieves control data from memory based on the arrangement of the modules in the predetermined layout and / or based on the specific type of the module. The type of module is specified by the operator via input from a programming device.

[0123] The method includes the step of receiving identification input indicating a selection of a module to be programmed by an operator. In other words, when an operator is installing the AHU in the field, after physically positioning the module, they can select the corresponding virtual module on the programming device, which is displayed as being in a specific location within the programming device. In other embodiments, when the operator is at the factory, they can select the corresponding virtual module on the programming device, which is displayed as being in a specific location within the programming device, before sending the AHU to the customer.

[0124] The method includes the step of transmitting selected control data, which represents control logic associated with a selected module to be programmed. The selected control data is transmitted from a programming device to the corresponding peripheral controller of the selected module to be programmed.

[0125] In one implementation, the step of transmitting selected control data is performed using Near Field Communication (NFC) technology.

[0126] According to another aspect of this disclosure, this specification provides a computer program that includes operating instructions configured to perform one or more steps of a method for programming control logic on multiple modules of an air handling unit (AHU). Attached Figure Description

[0127] This and other features of the invention will become clearer from the following detailed description of preferred, non-limiting exemplary embodiments of the invention with reference to the accompanying drawings, in which:

[0128] - Figure 1 A schematic layout of an air handling unit (AHU) is shown.

[0129] - Figure 2 A schematic cross-section of the control container is shown;

[0130] - Figure 3 A schematic diagram is shown of a method for programming the control logic on multiple modules of an air handling unit (AHU).

[0131] - Figure 4 It shows according to Figure 3A schematic diagram of the transmission steps of the method.

[0132] Figures 5A and 5B show a first schematic diagram and a second schematic diagram of the control container. Detailed Implementation

[0133] Referring to the accompanying drawings, the air handling unit (AHU) is designated as 1. The AHU 1 can be installed in an operating space OS where thermodynamic conditioning is required. Specifically, the AHU includes at least one module 100, but preferably multiple modules 100. Each of the multiple modules 100 is located in a corresponding operating area Z (in a corresponding position within a predetermined layout). Note that the AHU is configured to thermally condition or ventilate the conditioned space or perform other physical transformations on the air contained within the conditioned space, which is the space that must be conditioned. Sometimes, the operating space where the AHU is located is the same as the conditioned space that must be conditioned; however, this is only an example. In most cases, the conditioned space is different from (significantly larger than) the operating space OS.

[0134] AHU 1 includes a central control unit 200 configured to control AHU 1. In particular, the central control unit 200 is connected to each of the plurality of modules 100 (in terms of the ability to receive data from each of the plurality of modules 100).

[0135] This information connection can be implemented in two different ways. According to a first embodiment, which is particularly advantageous for a limited number of modules, the central control unit 200 is directly connected to each module 100 via a corresponding cable. According to a second embodiment, which is particularly advantageous for a large number of modules, the central control unit 200 is connected to one module or at most two modules. In this embodiment, other modules are connected in series, and information about a module is transmitted through the other modules 100.

[0136] In one embodiment, the AHU includes a plurality of sensors 300 configured to detect values ​​of physical properties within the operating space. The plurality of sensors 300 are directly or indirectly connected to a central control unit 200. In one embodiment, at least one sensor 301 is directly connected to the central control unit 200. The at least one sensor 301 is connected to the central control unit 200 to transmit its control signals, preferably analog control signals.

[0137] According to one aspect of this specification, the one or more sensors include one or more of the following sensors:

[0138] -Temperature sensor;

[0139] - Pressure sensor;

[0140] - Humidity sensor.

[0141] In one embodiment, the AHU includes a plurality of actuators 400 configured to perform operations to thermodynamically regulate their operating regions Z (operating positions). The plurality of actuators 400 are directly or indirectly connected to a central control unit 200. In one embodiment, at least one actuator is directly connected to the central control unit 200. The at least one actuator is connected to the central control unit 200 to receive command signals, preferably analog command signals, from the central control unit 200.

[0142] According to one aspect of this specification, the one or more actuators include one or more of the following actuators:

[0143] - A fan for performing forced air circulation from the outside of the operating space to the inside of the operating space and / or performing forced air circulation from the inside of the operating space to the outside of the operating space;

[0144] - A heat exchanger for performing heat exchange between air and a heat conditioning fluid in an operating space, which may be a heater or a refrigerant fluid;

[0145] - Dehumidifier, used to dehumidify the air in the operating space;

[0146] - Heat recovery system, used to recover heat from the AHU's emissions section.

[0147] In one embodiment, each module includes one or more sensors 101 from the plurality of sensors 300. In one embodiment, each module includes one or more actuators 102 from the plurality of actuators 400.

[0148] Each of the multiple modules 100 includes a peripheral controller 103. The peripheral controller 103 is configured to exchange signals with the central control unit 200 (receive signals from the central control unit 200 and send signals to the central control unit 200). The signals exchanged between each peripheral controller 103 and the central control unit are preferably digital signals. However, the peripheral controller 103 may also exchange analog signals.

[0149] Each peripheral controller 103 is connected to the central control unit via a power cable PC, which is configured to feed electrical power to each peripheral controller 103. Furthermore, each peripheral controller 103 is connected to the central control unit via a signal cable SC, which is configured to transmit digital signals to and from each peripheral controller 103.

[0150] In one implementation, both the power cable PC and the signal cable SC are housed in a main cable connected to each peripheral controller 103.

[0151] Each peripheral controller 103 of the modules in the plurality of modules 100 is connected to one or more corresponding sensors 101. The one or more sensors 101 are configured to send a control signal 101' representing a value detected by the sensor to the corresponding peripheral controller 103. Each peripheral controller 103 of the modules in the plurality of modules 100 is connected to one or more corresponding actuators 102. In one embodiment, each peripheral controller 103 is configured to power the corresponding one or more actuators 102. In one embodiment, each peripheral controller 103 is configured to send a command signal 102' to the corresponding one or more actuators 102 to command them to operate.

[0152] In one implementation, the signal cable SC is Modbus. In one implementation, each peripheral controller 103 includes a corresponding Modbus node connected to Modbus.

[0153] Each of the multiple modules 100 includes a control container 400. The control container 400 may be a housing made of plastic or other suitable material. The control container 400 includes a plurality of walls 401 defining an internal volume V. The plurality of walls 401 define an outer surface ES and an inner surface IS of the control container 400.

[0154] The control container 400 includes a diaphragm 402. For example, the diaphragm 402 is a wall connected to a plurality of walls 401. The diaphragm can be integrally formed with the plurality of walls 401. For example, the control container 400 can be manufactured by a molding process. The diaphragm 402 includes a connection opening 402'.

[0155] The diaphragm 402 divides the internal volume V into a first volume V1 and a second volume V2. The first volume V1 and the second volume V2 are connected through the connecting opening 402'.

[0156] In one embodiment, the control container 400 includes a plurality of connectors 403. The plurality of connectors 403 are configured to allow the peripheral controller 103 to connect to the one or more sensors and / or the one or more actuators of the corresponding module 100. The plurality of connectors 403 are electrically connected to the corresponding peripheral controller 103.

[0157] Each module 100 includes a plurality of connection cables 404 for connecting the peripheral controller 103 to the one or more sensors and / or one or more actuators of the corresponding module 100.

[0158] The control container 400 includes a plurality of external openings 405, each external opening being configured to allow a corresponding connecting cable 404 of a plurality of connecting cables to enter the internal volume V.

[0159] In one embodiment, a first volume V1 houses a corresponding peripheral controller 103, which is fixed, for example, to one of a plurality of walls 401. In one embodiment, a second volume V2 houses a plurality of connectors 403.

[0160] In this embodiment, the connection between the plurality of connectors 403 and the corresponding peripheral controllers spans the diaphragm through the connection opening 402'.

[0161] In one embodiment, each peripheral controller 103 includes an indicator light 406. The indicator light 406 is configured to provide information about the operating status of the corresponding module 100 based on the type of light emitted.

[0162] For example, if module 100 has some operational problems, indicator light 406 emits red light, while when module 100 is operating well, indicator light 406 emits green light.

[0163] In one embodiment, the control container 400 includes an inspection opening 407. The inspection opening 407 leads to the internal volume V of the control container 400 to allow an operator to view the indicator light 406 from the outside. In other embodiments, the indicator light 406 may be placed on the outer surface ES of the control container 400 and connected to a corresponding peripheral controller 103 by means of a dedicated wire.

[0164] In one embodiment, each module 100 includes a proximity receiver 408. The proximity receiver 408 is configured to receive data from an external device and transmit the data to a peripheral controller 103 connected thereto via Near Field Communication (NFC) technology. Specifically, according to one embodiment, the proximity receiver 408 is configured to receive control data 103' representing control logic to be installed in the corresponding peripheral controller 103. In some embodiments, each module 100 includes a proximity transmitter. The proximity transmitter is configured to transmit data from the peripheral controller 103 to an external device via Near Field Communication (NFC) technology. The proximity transmitter may be useful for downloading data from the memory of the corresponding peripheral controller 103, for example, in case of control failure or other diagnostic needs.

[0165] According to one aspect of this specification, and as an example of only one implementation, the plurality of modules include:

[0166] - First filtering module M1, which includes:

[0167] A baffle, used to close and open the opening for receiving outside air;

[0168] A temperature sensor configured to detect the external temperature;

[0169] Filtration system, used to filter outside air;

[0170] - Heat recovery module M2, which includes a recovery heater for recovering heat from outflowing air and transferring it to inflowing air, and a temperature sensor;

[0171] - Thermal regulation module M3, which includes:

[0172] Cooler;

[0173] heater;

[0174] One or more valves used to regulate flow;

[0175] One or more temperature sensors;

[0176] - The second filtering module M4 includes:

[0177] A filtration system used to filter air that flows in from the outside;

[0178] Temperature sensor;

[0179] Pressure sensor;

[0180] - The third filter module M5 is used to filter the air flowing out of the operating space.

[0181] According to one aspect of this specification, this disclosure provides further embodiments of the control container, which are shown in Figures 5A and 5B.

[0182] In this embodiment, the control container 400 includes a cover 401' configured to protect the peripheral controller 103. The cover 401' is preferably transparent. The cover 401' is open on one side to receive cables for connection to the peripheral controller 103.

[0183] The peripheral controller 103 preferably includes a plurality of plugs 402 (preferably ten plugs) configured to receive input signals or send output signals. The plugs 402' are configured to connect to the sensors 101 and actuators 102 of the corresponding module 100.

[0184] Each plug 402' is characterized by a color that identifies the sensor and / or actuator that must be connected thereto. Each plug 402' may include multiple pin connections.

[0185] The proximity receiver 408 of the peripheral controller 103 is preferably spaced apart from the base of the peripheral controller. This ensures that it can be detected and / or sensed from the outside.

[0186] Peripheral controller 103 includes a first connector 403' and a second connector 404'. The first connector 403', which defines Modbus communication, is configured to receive signals from central control unit 200 or from another peripheral controller 103. The second connector 404', which defines Modbus communication, is configured to send signals to central control unit 200 or to another peripheral controller 103.

[0187] Each of the first plug 403' and the second plug 404' preferably includes six pins: two signal pins, one reference pin, two power supply pins, and one pin connected to the mesh that wraps the two signal cables.

[0188] The control container 400 includes an outer housing 405'. The outer housing 405' includes a first outer shell 4051' and a second outer shell 4052', which can be connected to each other to prevent access to the internal volume V of the control container 400.

[0189] The first housing 4051' includes a recess R. The first housing 4051' includes a wall W, which includes at least two recesses to support an input Modbus and an output Modbus thereon.

[0190] In one embodiment, the control container 400 includes a pressure plate 406' configured to connect to a pressure gauge. The pressure plate 406' is received in a recess R. In one embodiment, the pressure plate 4061' includes four conduits for connecting the pressure plate 406' to two pressure gauges. In one embodiment, the pressure plate 4062' includes two conduits for connecting the pressure plate 406' to one pressure gauge. Finally, in one embodiment, the pressure plate 4063' is flattened to close the recess R when the peripheral controller does not need to control the pressure.

[0191] For each pipe of pressure plate 406', control container 400 includes a corresponding plastic pipe that connects the pipe to peripheral controller 103.

[0192] All cables leading to the peripheral controller (Modbus input, Modbus output, sensor cable, actuator cable) are located between the first housing 4051' and the second housing 4052'. For this purpose, the control container 400 includes a first seal 4071' and a second seal 4072'. The first seal 4071' includes a first portion P1 and a second portion P2. The first portion P1 includes a profile complementary to the recess R of the first housing 4051'. Thus, the first portion P1 of the first seal 4071' is disposed on the boundary of the recess R of the first housing 4051'. A pressure plate 406' is located in the first seal 4071'. The second portion P2 of the first seal 4071' is positioned above the pressure plate 406' to continue to effectively close the first seal 4071'.

[0193] The first seal 4071' includes a first plurality of seats S1 on the side opposite the boundary of the first housing 4051', each of the first plurality of seats S1 being configured to receive a corresponding cable.

[0194] The second seal 4072' includes a second plurality of seats S2, which, together with the first plurality of seats S1, surround the cable leading to the peripheral controller. Therefore, the first seal 4071' and the second seal 4072' are located between the first housing 4051' and the second housing 4052'.

[0195] The control container 400 also includes a placeholder plug 408'. The placeholder plug 408' is a plug that can be placed between the first seal 4071' and the second seal 4072' if there is no corresponding cable, and the corresponding cable is not provided in the specific control logic loaded on the peripheral controller.

[0196] The cover 401' includes multiple light guides configured to direct the light of the indicator light 406 from the base of the peripheral controller 103 to the housing 405' for external detection.

[0197] In one embodiment, the control container includes a plurality of one-way retainers 409'. The one-way retainers are configured to hold the cable in one direction to prevent the cable from separating from the control container 400. In one embodiment, each one-way retainer 409 includes a first wall and a second wall that are diverging from each other in the direction in which the cable is pulled out. Therefore, when the cable is pulled out from the outside, the two walls bend due to friction with the cable, and they tighten the cable, thereby preventing it from being pulled out.

[0198] In one implementation, the peripheral controller 103 includes a USB connection for uploading data to / downloading data from the peripheral controller 103.

[0199] In one embodiment, the control container 400 includes a pull-out tool associated with the outer housing 405'. The pull-out tool assists a worker in unplugging cables and / or inserting cables into appropriate plugs.

[0200] In one implementation, the peripheral controller includes six LEDs (light indicators 406). The peripheral controller is programmed to display colors on the LEDs according to the following diagram.

[0201] LED1: Green color, peripheral controller is on.

[0202] LED2: Color Red: Peripheral controller error, the peripheral controller should be replaced.

[0203] LED3: Yellow: I / O wiring error.

[0204] LED4: Blue color, communication is normal.

[0205] LED5: Yellow: Communication timeout with central control unit 200.

[0206] LED6: Red, indicating the module is in alarm mode.

[0207] This specification also provides a method for installing an air handling unit (AHU). The method includes the step of providing an AHU 1 comprising multiple modules 100. In this step, the AHU is transported to the location where it must be installed.

[0208] Specifically, AHU 1 must be installed in the operating space OS. After the AHU is transported to the field, it must be positioned within the operating space OS. Specifically, the method includes a positioning step for positioning AHU 1 within the operating space OS. Specifically, in the positioning step, each of the plurality of modules 100 is positioned in its corresponding operating area Z (operating position in a predetermined layout).

[0209] During the positioning process, the central control unit 200 of AHU 1 is positioned within the corresponding location of the operating space OS.

[0210] The method includes a connection step. In the connection step, one or more of the following connections may be performed.

[0211] Each module 100 is connected to the central control unit 200. Specifically, in an embodiment where each module has a corresponding peripheral controller 103, each peripheral controller 103 is connected to the central control unit 200. During the connection process, each peripheral controller 103 is connected to the central control unit 200 via a power cable PC to supply power through the central control unit 200. During the connection process, each peripheral controller 103 is connected to the central control unit 200 via a signal cable SC to exchange digital and / or analog signals with the central control unit 200.

[0212] During the connection step, each peripheral controller 103 is connected to one or more corresponding sensors 101 of module 100. Specifically, according to one embodiment, the connection between the peripheral controller 103 and the one or more sensors 101 is an analog connection. This connection allows one or more sensors 101 to send control signals 101' to the corresponding peripheral controller 103.

[0213] During the connection step, each peripheral controller 103 is connected to one or more corresponding actuators 102 of module 100. Specifically, according to one embodiment, the connection between the peripheral controller 103 and the one or more actuators 102 includes power transmission and / or signal transmission. This connection allows one or more actuators 102 to receive command signals 102' from the corresponding peripheral controller 103.

[0214] In the connection step, multiple connection cables 404, each end of which is connected to one or more sensors 101 and / or one or more actuators 102, are inserted into corresponding external openings 405 of the control container 400 of the module 100. After the multiple connection cables 404 are inserted into their respective external openings 405, they are connected to corresponding connectors 403, which in turn connect to their respective peripheral controllers. The connectors 403 in the control container 400 are positioned at a distance from their respective peripheral controllers 103 to avoid any damage to the peripheral controllers 103 during the connection step.

[0215] The method includes a containment step in which a peripheral controller 103 is disposed in a first volume V1 of the internal volume V of the control container 400, while a plurality of connectors 403 are disposed in a second volume V2 of the internal volume V, the second volume V2 being separated from the first volume V1 by a diaphragm 402. The containment step is preferably not performed in the field, but is performed during the assembly of each module.

[0216] The positioning steps are performed based on a predetermined layout provided to the operator. Each of the multiple modules 100 must be controlled in some way according to its position within the predetermined layout.

[0217] Therefore, the method includes programming steps.

[0218] In one implementation, the programming step can be performed in the field after the peripheral controller has been located. In other implementations, the programming step can be performed at the factory before the AHU is sent to the customer.

[0219] The programming process allows for the characterization of each module 100. In practice, prior to (field or factory) programming, each of the multiple modules 100 is adapted to be positioned anywhere within a predetermined layout. Through the (field or factory) programming process, each module is distinguished based on its actual and physical location (or based on sensors and actuators connected to it). This feature prevents any errors by the operator placing the wrong module in a specific location within the layout.

[0220] Therefore, the (field or factory) programming step includes transmitting control data 103', representing the control logic to be installed in the corresponding module 100, from the programming device PD to the corresponding module 100. In other words, in the (field or factory) programming step, each peripheral controller 103 is programmed according to the location of the corresponding module 100 in the operating space.

[0221] In one implementation, the step of transmitting control data 103' is performed using Near Field Communication (NFC) technology.

[0222] When programming steps are performed on-site, they are preferably performed after the positioning steps.

[0223] More specifically, after the positioning step, the operator holds a programming device PD, which can be simply a smartphone, tablet, or personal computer, and approaches each of the plurality of modules 100 to program it. The operator preferably selects the module whose position on the screen of the programming device PD corresponds to its actual position in a virtual layout. Based on the positioning of the selected module on the screen, the programming device PD prepares control data 103' corresponding to the control logic to be installed in the selected module 100. The programming device PD transmits the prepared control data 103' to the proximity receiver 408 of the corresponding module 100 to install the designed control logic on the peripheral controller 103. This transmission step is performed for each of the plurality of modules 100.

[0224] In other words, multiple modules are selected from a database of modules within the software. Specifically, customers can customize the AHU (Automatic User Header) and, based on their selections, modules are chosen from the database. Once all modules and their components are defined, the software is also able to draft an economical quote.

[0225] When an order is executed, the software sends all information about the modules, especially the positions of all components and modules in the AHU layout, to the operator. The operator can then install the AHU in the factory or even on-site during AHU assembly using the software, according to the received specifications.

[0226] More specifically, this specification also provides a method for programming control logic on multiple modules of an air handling unit (AHU) via a programming device including a processor.

[0227] The method includes step F1 of receiving layout data 10, which represents a predetermined layout in which modules of a plurality of modules are operatively interconnected according to the predetermined layout.

[0228] The method includes step F2 of receiving control data 103' representing a plurality of control logics. Each control logic is associated with a corresponding module 100 among the plurality of modules. Based on the arrangement of the modules 100 in a predetermined layout, each control logic is associated with a corresponding module 100 among the plurality of modules.

[0229] Control data 103' and / or layout data 10 may be received by the processor in one or more of the following ways:

[0230] - Read layout and / or control data associated with a specific custom project from a remote server. The layout data is generated by the operator in another terminal during the design phase.

[0231] - Import layout data and / or control data via the import module of the programming device;

[0232] - Receive layout data and / or control data via email or wireless connection;

[0233] - Layout data is received via mobile communication or narrowband.

[0234] In one implementation, each module can be categorized into a set of categories based on its function and / or its location. In one implementation, the processor receives the category to which each module belongs from the operator designing the AHU.

[0235] In one implementation, the processor reads control data for each module 100 from a remote server based on the category to which the respective module 100 belongs.

[0236] The method includes step F3 of receiving identification input 11, which represents the selection of module 100 to be programmed by the operator.

[0237] For example, the recognition input 11 can be the selection of a particular module 100 by touching a particular module 100 on a touch screen that displays a virtual predetermined layout on the programming device PD.

[0238] In one embodiment, the method includes step F4 of transmitting selected control data 103', the selected control data 103' representing control logic associated with a selected module to be programmed. The selected control data 103' is transmitted from the programming device PD to the corresponding peripheral controller 103 of the module 100 to be programmed.

[0239] Preferably, step F4, which transmits the selected control data 103', is performed using Near Field Communication (NFC) technology.

[0240] In one implementation, the processor is configured to group the control data 103' based on a predetermined layout to define a new set of control data 103' (defining new control logic) that does not yet exist in the database of control data (control logic). The processor is configured to store the new set of control data 103' (new control logic) in the database for direct implementation in future projects.

[0241] For example, if the number of sensors implemented by the user in the module exceeds the maximum number of sensors that can be managed by each single set of control data 103' (controlled by control logic existing in the database), the processor can select two sets of control data 103' (two existing sets of control logic) that, when combined, can manage all sensors. However, these schemes work with two peripheral controllers, each programmed with a corresponding set of control data 103' (with corresponding control logic). In other implementations, if the peripheral controllers are physically capable of managing all sensors, the processor creates a new set of control data 103' (new control logic) programmed to control the peripheral controllers that implement all sensors together. Therefore, for the same number of sensors, only one peripheral controller can be used.

[0242] In addition, the database of control data 103' is continuously updated with a new set of control data 103', which can cover different customer needs.

Claims

1. An air handling unit, comprising: - Multiple modules, each of which includes: Sensors, the sensors being configured to detect values ​​of physical properties and generate control signals and / or An actuator configured to perform an air handling operation; A peripheral controller, connected to the sensor to receive the control signal, and connected to the actuator to control it via a command signal. The modules in the plurality of modules are operably interconnected according to a predetermined layout; - A central control unit that communicates with each peripheral controller to exchange signals with each peripheral controller. Each peripheral controller of one of the plurality of modules is programmable and capable of changing the control logic according to the predetermined layout in response to the sensors and / or actuators connected to the corresponding peripheral controller. Each peripheral controller is configured to be placed anywhere in the predetermined layout and is programmed according to the predetermined layout location where it is installed.

2. The air handling unit according to claim 1, wherein, Each of the plurality of modules includes a proximity receiver configured to receive control data representing the control logic for programming the peripheral controller using near field communication (NFC) technology.

3. The air handling unit according to claim 1, wherein, Each of the plurality of modules includes a control container, the control container including an outer shell defining an internal volume, and wherein each peripheral controller is housed within the internal volume.

4. The air handling unit according to claim 3, wherein, Each control container includes a corresponding lid and a corresponding plurality of connectors, the lid being configured to divide the internal volume into a first volume and a second volume, the plurality of connectors being for connecting the peripheral controller to a corresponding sensor and / or a corresponding actuator, wherein the first volume houses the peripheral controller and the second volume houses the plurality of connectors.

5. The air handling unit according to claim 3, wherein, Each peripheral controller includes an indicator light that indicates the operating status of the corresponding module, and the indicator light of the corresponding peripheral controller is visible from the outside.

6. The air handling unit according to claim 3, wherein, Each peripheral controller includes a proximity receiver configured to receive data via Near Field Communication (NFC) technology, and said proximity receiver is disposed on the outer surface of the respective control container.

7. The air handling unit according to claim 1, 2, or 3, wherein, The central control unit is connected to at least one peripheral controller via a power cable for powering the corresponding module, and is also connected to at least one peripheral controller via a signal cable that defines a Modbus connection.

8. The air handling unit according to claim 1, 2, or 3, wherein, The physical properties detected by the sensor include one or more of the following physical parameters: - temperature; - pressure; - Humidity, Furthermore, the actuators of the modules in the plurality of modules are configured to perform one or more of the following operations: - Forced air circulation from the outside to the inside of the operating space; - Forced air circulation from inside the operating space to outside the operating space; - Used for heat exchange to cool or heat air.

9. The air handling unit according to claim 1, 2, or 3, wherein, The control signals are at least partially digital signals and / or analog signals.

10. The air handling unit according to claim 1, 2, or 3, wherein, All peripheral controllers include the same number of connection interfaces.

11. A method for installing an air handling unit in an operating space, the method comprising the steps of: - Provides multiple modules, each module including a sensor, an actuator, and a peripheral controller for controlling the sensor and the actuator; - Provides a central control unit; - Position each module in its corresponding operating area within the operating space; - Connect the central control unit to each peripheral controller of each of the plurality of modules to exchange signals with the corresponding peripheral controller of each module. The method includes a programming step in which each peripheral controller of the plurality of modules is programmed by installing corresponding control logic based on the sensors and / or actuators of the corresponding modules. Each peripheral controller can be placed at any position in a predetermined layout and can be programmed according to the predetermined layout position in which it is installed.

12. The method according to claim 11, wherein, The programming step is performed by bringing the programming device close to the proximity receiver of each peripheral controller of the plurality of modules to allow data transmission via near field communication technology.

13. The method of claim 11 or 12, further comprising a wiring stage in which the sensor and the actuator are connected to the peripheral controller via a plurality of connectors spaced apart from respective peripheral controllers.

14. The method according to claim 11 or 12, wherein, In the programming step, the central control unit receives the corresponding control logic representing the sensors and actuators of each module.

15. A method for programming control logic on multiple modules of an air handling unit using a programming device, the programming device including a processor, the method comprising the following steps performed by the processor: - Receive layout data, the layout data representing a predetermined layout, wherein the modules of the plurality of modules are operably interconnected according to the predetermined layout; - Receive control data, which represents a plurality of control logics, wherein each control logic is associated with a corresponding module among the plurality of modules based on the arrangement of the modules in the predetermined layout; - Receive identification input, which represents the selection of a module to be programmed by the operator; - Selected control data is transmitted from the programming device to the corresponding peripheral controller of the module to be programmed, the selected control data representing the control logic associated with the selected module to be programmed.

16. The method according to claim 15, wherein, During the transmission step, the programming device transmits the selected control data from the peripheral controllers to the central control unit of the air handling unit, which controls each peripheral controller.

17. The method according to claim 15 or 16, wherein, The step of transmitting the selected control data is performed using Near Field Communication (NFC) technology.

18. A computer program product comprising operating instructions configured to perform the steps of the method of claim 15 when executed on a computer.

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