This document provides product data on Carrier rooftop air conditioning units. It includes details on:
- Features and benefits of the units such as ease of installation, maintenance, and use
- Model number nomenclature explaining the coding system
- Available factory-installed options and field-installed accessories such as economizers, motors, controls, coils, and curbs
- Performance data including cooling and heating capacity tables, sound levels, dimensions, and electrical information
The document provides specification sheets, engineering details, and selection information for Carrier 48TC packaged rooftop air conditioning units for heating, cooling, and ventilation applications.
The document provides information on various types of industrial fans including their impeller type, series, size range, maximum flow and pressure capabilities, temperature range, suitable applications, and remarks. It includes details on direct drive and belt driven arrangements as well as available accessories.
The document discusses several case studies of VRV heat pump installations in the United States. It describes projects like a 7,000 square foot installation at BlueHole Lodge in 2001, and renovations at Owensboro Christian Church and Daviess County Learning Center in Kentucky in the 2000s using Daikin VRV systems. It also summarizes installations at facilities like a Hilton Garden Inn in Texas, Staybridge Suites in Irving TX, and the Santa Fe A-Lofts hotel in Dallas.
URHE-CF is a heat recovery unit containing both a high-efficiency cross-flow plate exchanger, and a cooling circuit in heat pump mode. The cooling circuit has a high-efficiency scroll compressor, finned condensation/evaporation coil, thermostatic valve, 4-way valve, liquid separator, liquid indicator light, filter drier, and all the necessary measuring and safety components. The unit is fitted with centrifugal fans (that respect ERP2015) with forward blades and a directly coupled motor. The rotation speed is controlled by an EC device. It has G4 filters positioned before the plate exchanger (on both the fresh air and the extracted air), and a differential pressure switch for checking the filters are not clogged. The machine has an advanced adjustment system for managing the cooling circuit and the accessories used (integration coils, free-cooling kit).
This document provides information on a commercial VRF range for 2014, including:
- Outdoor units can connect up to 48HP with 3 modules and a maximum of 64 indoor units.
- Indoor unit options include cassettes, floor/ceiling units, ducted units, walls splits, and more.
- Outdoor units can operate from -15°C to +46°C in cooling mode and -15°C to +24°C in heating mode.
- The document discusses outdoor unit dimensions, sound levels, backup functions, installation details, controls, and building management system integration options.
This document provides an overview of VRV (Variable Refrigerant Volume) air conditioning systems. It defines VRV and describes its concept of varying refrigerant volume to indoor units for flexible capacity control. The document outlines the VRVIII range, which includes 14 outdoor unit models with capacities from 6.4 to 29 tons. It also describes the extensive line of indoor units that can be connected. The document discusses VRVIII features like extended piping lengths up to 1000m, high external static pressure tolerance, and low sound levels. It notes VRVIII systems' environmental benefits such as high efficiency, use of an ozone-friendly refrigerant, and compliance with RoHS directives. The document outlines individual and centralized controller options
This document provides product data on Carrier rooftop air conditioning units. It includes details on:
- Features and benefits of the units such as ease of installation, maintenance, and use
- Model number nomenclature explaining the coding system
- Available factory-installed options and field-installed accessories such as economizers, motors, controls, coils, and curbs
- Performance data including cooling and heating capacity tables, sound levels, dimensions, and electrical information
The document provides specification sheets, engineering details, and selection information for Carrier 48TC packaged rooftop air conditioning units for heating, cooling, and ventilation applications.
The document provides information on various types of industrial fans including their impeller type, series, size range, maximum flow and pressure capabilities, temperature range, suitable applications, and remarks. It includes details on direct drive and belt driven arrangements as well as available accessories.
The document discusses several case studies of VRV heat pump installations in the United States. It describes projects like a 7,000 square foot installation at BlueHole Lodge in 2001, and renovations at Owensboro Christian Church and Daviess County Learning Center in Kentucky in the 2000s using Daikin VRV systems. It also summarizes installations at facilities like a Hilton Garden Inn in Texas, Staybridge Suites in Irving TX, and the Santa Fe A-Lofts hotel in Dallas.
URHE-CF is a heat recovery unit containing both a high-efficiency cross-flow plate exchanger, and a cooling circuit in heat pump mode. The cooling circuit has a high-efficiency scroll compressor, finned condensation/evaporation coil, thermostatic valve, 4-way valve, liquid separator, liquid indicator light, filter drier, and all the necessary measuring and safety components. The unit is fitted with centrifugal fans (that respect ERP2015) with forward blades and a directly coupled motor. The rotation speed is controlled by an EC device. It has G4 filters positioned before the plate exchanger (on both the fresh air and the extracted air), and a differential pressure switch for checking the filters are not clogged. The machine has an advanced adjustment system for managing the cooling circuit and the accessories used (integration coils, free-cooling kit).
This document provides information on a commercial VRF range for 2014, including:
- Outdoor units can connect up to 48HP with 3 modules and a maximum of 64 indoor units.
- Indoor unit options include cassettes, floor/ceiling units, ducted units, walls splits, and more.
- Outdoor units can operate from -15°C to +46°C in cooling mode and -15°C to +24°C in heating mode.
- The document discusses outdoor unit dimensions, sound levels, backup functions, installation details, controls, and building management system integration options.
This document provides an overview of VRV (Variable Refrigerant Volume) air conditioning systems. It defines VRV and describes its concept of varying refrigerant volume to indoor units for flexible capacity control. The document outlines the VRVIII range, which includes 14 outdoor unit models with capacities from 6.4 to 29 tons. It also describes the extensive line of indoor units that can be connected. The document discusses VRVIII features like extended piping lengths up to 1000m, high external static pressure tolerance, and low sound levels. It notes VRVIII systems' environmental benefits such as high efficiency, use of an ozone-friendly refrigerant, and compliance with RoHS directives. The document outlines individual and centralized controller options
This document provides an overview of variable refrigerant volume (VRV/VRF) systems. It discusses the history and development of VRV technology, the main components and types of VRF systems, major manufacturers and distributors, and the benefits of VRF systems compared to other HVAC options. Some key benefits highlighted include independent zone control, energy efficiency savings, flexibility of design, ease of installation, and low maintenance requirements. The document also provides tips on communicating the benefits of VRF systems to contractors and clients to help sell these systems.
Neil Hitching, Southern Area Sales Manager for Toshiba Air Conditioning, provided an overview of Toshiba's products and support services. Key highlights included their new SHRMi heat recovery VRF system, which offers industry-leading energy efficiency through simultaneous heating and cooling. Toshiba also discussed their compressor and control innovations that allow for more granular temperature control and higher efficiencies. Their extensive support network and tools were highlighted as helping customers with selection, commissioning, and ongoing technical assistance.
PM-VRV10YR - 10yrs of VRV in North America (08-15)Holly Green
Daikin has had a growing presence in the North American HVAC market for 10 years with their VRV technology. Some key points:
- Daikin acquired Goodman Manufacturing in 2012 for $3.7 billion, expanding their North American manufacturing and distribution.
- They have installed over 10,000 VRV systems representing over 100 million square feet across various building types.
- Daikin has invested heavily in developing VRV technology and standards, establishing local manufacturing, and contractor training programs to support growth in North America.
- VRV provides a flexible and scalable solution for both heating and cooling across a wide range of commercial building applications.
Dekon , onf of the professional supplier and exporter for VRF system in China. Have exported to more than 30 different countries our products. Dekon vrf system brief introduction here just brief intro of our products DRV, any more info needed, pls visit us at dekon-china.com or chinavrf.com
Hitachi set free features Compressors system Designing 919825024651Sdsplit Split
This document summarizes new features of Hitachi's Set-Free VRF air conditioning system. Key features include inverter compressors with variable speed control and electronic expansion valves for optimized refrigerant flow. It also describes noise reduction modes, automatic refrigerant charge assessment, rotating operation for equal compressor load, and 25-step outdoor fan motor control for improved efficiency.
Dual chamber liquid level measuring system with magnetic level indication and guided wave radar combined into a single assembly.
The VEGAMAG 62 series combination magnetic level indicator and bypass bridle chamber provides the benefits of both visual indication and process control by using the proven technology of the VEGAFLEX to provide the most complete visual and guided microwave radar package in the industry. The VEGAMAG 62 can be configured to mount to most standard tank process connections as well as applications where interface measurements are needed.
Desuperheating, sometimes called attemperation or steam conditioning, is the reduction of gas temperature. Its most common application is the reduction of temperature in a steam line through the direct contact and evaporation of water. Most Desuperheaters incorporate the venturi design which uses the velocity of the steam to atomize the cooling water. In addition, Ejector Atomizing Desuperheaters, Attemperator Desuperheaters, Surface Absorption Desuperheaters and Mechanical Atomizing Desuperheater designs are available. In most types, water pressure requirements are the same as the steam line pressure.
The document discusses steam turbine control and instrumentation. It describes various types of steam turbines including conventional cycle, combined cycle, and nuclear turbines ranging from 210MW to 800MW. It then discusses the aims of automation in steam turbines, including improved control quality, increased plant availability and efficiency. The document outlines the main subsystems of steam turbine control including control systems, monitoring and measurement systems, and protection systems. It provides details on an Automatic Turbine Run-Up System (ATRS) which automatically controls the start-up process. The ATRS utilizes functional group control philosophy and consists of sub-group controls, sub-loop controls, and drive interface controls. It also describes the turbine protection system and various tripping criteria to
AJA ATC-2200-UHV deposition system sputtering system system in San Jose CAEmily Tan
AJA ATC-2200-UHV deposition system sputtering system system in San Jose CA. Great condition. We sell it at AS IS,WHERE IS. Subject to prior sale. Appreciate your time.
This document provides information on the RTX rooftop air conditioning unit, including:
- It has plug fans coupled with EC brushless motors and options for free-cooling and enthalpic free-cooling.
- Configurations include options for return air, external air, and expelled air flows.
- It has features like two cooling circuits, scroll tandem compressors, finned pack exchangers, and microprocessor control for efficient operation.
Climatizare close control si chillere racite cu aer/apa dotate cu tehnologia turbocor.
Producatori RC Group si Smardt
Aplicatii: camere tehnice, IT, data center, telecomunicatii, camere de control, etc.
Variable refrigerant flow (VRF) is an air-condition system configuration where there is one outdoor condensing unit and multiple indoor units. The term variable refrigerant flow refers to the ability of the system to control the amount of refrigerant flowing to the multiple evaporators (indoor units), enabling the use of many evaporators of differing capacities and configurations connected to a single condensing unit. The arrangement provides an individualized comfort control, and simultaneous heating and cooling in different zones.
The document summarizes ventilation units from Dantherm A/S including VentR and VentC units. VentR units are suitable for comfort ventilation with up to 80% heat recovery efficiency and small dimensions. VentC units are suitable for industrial ventilation where fresh and exhaust air should not mix, with 55-65% efficiency. The document describes the unit construction, fans/motors, heat exchangers, filters, controls, advantages over other units, and Dantherm's calculation program for unit selection.
LG VRF MULTI V - AIR CONDITIONING SYSTEM. Got ASHRAE Innovation Award and got Largest patents in this segment.
It has various model apt to all type of requirements.
Design, Installation and Testing of the VRF SystemSocheat Veng
The document provides details about the design, installation, and testing of a VRF air conditioning system at the TK Royal One building in Cambodia.
[1] It describes the components of a Panasonic VRF system, including outdoor units, indoor units, and compressor types. Load calculations were performed using estimation and manual methods to determine a total cooling load of 109.8kW was required.
[2] An outdoor unit model U-40ME2R8 with 113kW maximum cooling capacity was selected. Four indoor ducted units were chosen for the conference hall.
[3] The installation process for air ducts, copper pipes, drain pipes, and outdoor/indoor units is
The document discusses various applications of VRV systems around the globe, providing examples in numerous countries. It describes installations in historic buildings, hotels, hospitals, apartments, and office buildings. The VRV systems were chosen for their flexibility, ease of installation, individual zone control, energy efficiency, and ability to fit into small spaces or be discreetly hidden from view. Locations included the United Kingdom, Russia, China, Singapore, Italy, Greece, France, Belgium, and more.
The units of the R series are made with the same dimensions as the rack units and have rear intake and front delivery, offering various advantages: the distribution of the treated air takes place near the servers, the horizontal intake and delivery does not change the direction of the flow to the inside of the machine, reducing pressure drops and consumption by the fans, and maintenance is easy thanks to front accessibility. The direct expansion RXA version has, as standard, the DC brushless inverter compressor and can be air condensed with the provided remote condenser, or water condensed. The RXU version is also available, with a chilled water coil. The R series can be configured with the Two Sources system with two distinct means of cooling, or with the free cooling system, which maximises energy savings. Advanced microprocessor electronic regulation unit for control of the unit, with the RS485 card as standard.
The units of the G series are designed with construction characteristics that optimise the space and layout of technical floors. The fan section is composed of a separately provided sub-base, providing remarkable advantages: a coil with ample heat exchange surface area, an extended filtering surface that limits maintenance operations thanks to less soiling, and horizontal air delivery for operation with less pressure drops. The G series is available in the GX versions, with air condensing and matching remote condenser, or with water condensing and incorporated plate heat exchanger, as well as the GW version with the cooled water circuit. The PX versions have the optional DC brushless inverter compressor for efficient modulation of delivered power. Advanced microprocessor electronic regulation for integrated control of the unit with a standard RS485 card.
This document summarizes an electric screw compressor product line from CPG. It describes the key features and benefits of the compressors, including their industrial design, filtration system, advanced controller, gear-driven transmission, cooling system, maintenance schedule, and service parts. The compressors are available in models from 280-355kW for various industries and are designed to deliver high performance compressed air efficiently over their lifetime.
This document provides an overview of Cooltron's line of AC axial fans and blowers. It introduces the product line and discusses features such as voltage, fan size, speed, airflow, bearing type, materials, certifications, and stock information. Custom fan solutions are also described, including waterproof, thermistor controlled, and EC efficiency fans. Potential markets for AC fans and blowers are listed as gaming machines, telecommunications, industrial/instrumentation, office equipment, and more. Contact information is provided at the end.
This document provides an overview of variable refrigerant volume (VRV/VRF) systems. It discusses the history and development of VRV technology, the main components and types of VRF systems, major manufacturers and distributors, and the benefits of VRF systems compared to other HVAC options. Some key benefits highlighted include independent zone control, energy efficiency savings, flexibility of design, ease of installation, and low maintenance requirements. The document also provides tips on communicating the benefits of VRF systems to contractors and clients to help sell these systems.
Neil Hitching, Southern Area Sales Manager for Toshiba Air Conditioning, provided an overview of Toshiba's products and support services. Key highlights included their new SHRMi heat recovery VRF system, which offers industry-leading energy efficiency through simultaneous heating and cooling. Toshiba also discussed their compressor and control innovations that allow for more granular temperature control and higher efficiencies. Their extensive support network and tools were highlighted as helping customers with selection, commissioning, and ongoing technical assistance.
PM-VRV10YR - 10yrs of VRV in North America (08-15)Holly Green
Daikin has had a growing presence in the North American HVAC market for 10 years with their VRV technology. Some key points:
- Daikin acquired Goodman Manufacturing in 2012 for $3.7 billion, expanding their North American manufacturing and distribution.
- They have installed over 10,000 VRV systems representing over 100 million square feet across various building types.
- Daikin has invested heavily in developing VRV technology and standards, establishing local manufacturing, and contractor training programs to support growth in North America.
- VRV provides a flexible and scalable solution for both heating and cooling across a wide range of commercial building applications.
Dekon , onf of the professional supplier and exporter for VRF system in China. Have exported to more than 30 different countries our products. Dekon vrf system brief introduction here just brief intro of our products DRV, any more info needed, pls visit us at dekon-china.com or chinavrf.com
Hitachi set free features Compressors system Designing 919825024651Sdsplit Split
This document summarizes new features of Hitachi's Set-Free VRF air conditioning system. Key features include inverter compressors with variable speed control and electronic expansion valves for optimized refrigerant flow. It also describes noise reduction modes, automatic refrigerant charge assessment, rotating operation for equal compressor load, and 25-step outdoor fan motor control for improved efficiency.
Dual chamber liquid level measuring system with magnetic level indication and guided wave radar combined into a single assembly.
The VEGAMAG 62 series combination magnetic level indicator and bypass bridle chamber provides the benefits of both visual indication and process control by using the proven technology of the VEGAFLEX to provide the most complete visual and guided microwave radar package in the industry. The VEGAMAG 62 can be configured to mount to most standard tank process connections as well as applications where interface measurements are needed.
Desuperheating, sometimes called attemperation or steam conditioning, is the reduction of gas temperature. Its most common application is the reduction of temperature in a steam line through the direct contact and evaporation of water. Most Desuperheaters incorporate the venturi design which uses the velocity of the steam to atomize the cooling water. In addition, Ejector Atomizing Desuperheaters, Attemperator Desuperheaters, Surface Absorption Desuperheaters and Mechanical Atomizing Desuperheater designs are available. In most types, water pressure requirements are the same as the steam line pressure.
The document discusses steam turbine control and instrumentation. It describes various types of steam turbines including conventional cycle, combined cycle, and nuclear turbines ranging from 210MW to 800MW. It then discusses the aims of automation in steam turbines, including improved control quality, increased plant availability and efficiency. The document outlines the main subsystems of steam turbine control including control systems, monitoring and measurement systems, and protection systems. It provides details on an Automatic Turbine Run-Up System (ATRS) which automatically controls the start-up process. The ATRS utilizes functional group control philosophy and consists of sub-group controls, sub-loop controls, and drive interface controls. It also describes the turbine protection system and various tripping criteria to
AJA ATC-2200-UHV deposition system sputtering system system in San Jose CAEmily Tan
AJA ATC-2200-UHV deposition system sputtering system system in San Jose CA. Great condition. We sell it at AS IS,WHERE IS. Subject to prior sale. Appreciate your time.
This document provides information on the RTX rooftop air conditioning unit, including:
- It has plug fans coupled with EC brushless motors and options for free-cooling and enthalpic free-cooling.
- Configurations include options for return air, external air, and expelled air flows.
- It has features like two cooling circuits, scroll tandem compressors, finned pack exchangers, and microprocessor control for efficient operation.
Climatizare close control si chillere racite cu aer/apa dotate cu tehnologia turbocor.
Producatori RC Group si Smardt
Aplicatii: camere tehnice, IT, data center, telecomunicatii, camere de control, etc.
Variable refrigerant flow (VRF) is an air-condition system configuration where there is one outdoor condensing unit and multiple indoor units. The term variable refrigerant flow refers to the ability of the system to control the amount of refrigerant flowing to the multiple evaporators (indoor units), enabling the use of many evaporators of differing capacities and configurations connected to a single condensing unit. The arrangement provides an individualized comfort control, and simultaneous heating and cooling in different zones.
The document summarizes ventilation units from Dantherm A/S including VentR and VentC units. VentR units are suitable for comfort ventilation with up to 80% heat recovery efficiency and small dimensions. VentC units are suitable for industrial ventilation where fresh and exhaust air should not mix, with 55-65% efficiency. The document describes the unit construction, fans/motors, heat exchangers, filters, controls, advantages over other units, and Dantherm's calculation program for unit selection.
LG VRF MULTI V - AIR CONDITIONING SYSTEM. Got ASHRAE Innovation Award and got Largest patents in this segment.
It has various model apt to all type of requirements.
Design, Installation and Testing of the VRF SystemSocheat Veng
The document provides details about the design, installation, and testing of a VRF air conditioning system at the TK Royal One building in Cambodia.
[1] It describes the components of a Panasonic VRF system, including outdoor units, indoor units, and compressor types. Load calculations were performed using estimation and manual methods to determine a total cooling load of 109.8kW was required.
[2] An outdoor unit model U-40ME2R8 with 113kW maximum cooling capacity was selected. Four indoor ducted units were chosen for the conference hall.
[3] The installation process for air ducts, copper pipes, drain pipes, and outdoor/indoor units is
The document discusses various applications of VRV systems around the globe, providing examples in numerous countries. It describes installations in historic buildings, hotels, hospitals, apartments, and office buildings. The VRV systems were chosen for their flexibility, ease of installation, individual zone control, energy efficiency, and ability to fit into small spaces or be discreetly hidden from view. Locations included the United Kingdom, Russia, China, Singapore, Italy, Greece, France, Belgium, and more.
The units of the R series are made with the same dimensions as the rack units and have rear intake and front delivery, offering various advantages: the distribution of the treated air takes place near the servers, the horizontal intake and delivery does not change the direction of the flow to the inside of the machine, reducing pressure drops and consumption by the fans, and maintenance is easy thanks to front accessibility. The direct expansion RXA version has, as standard, the DC brushless inverter compressor and can be air condensed with the provided remote condenser, or water condensed. The RXU version is also available, with a chilled water coil. The R series can be configured with the Two Sources system with two distinct means of cooling, or with the free cooling system, which maximises energy savings. Advanced microprocessor electronic regulation unit for control of the unit, with the RS485 card as standard.
The units of the G series are designed with construction characteristics that optimise the space and layout of technical floors. The fan section is composed of a separately provided sub-base, providing remarkable advantages: a coil with ample heat exchange surface area, an extended filtering surface that limits maintenance operations thanks to less soiling, and horizontal air delivery for operation with less pressure drops. The G series is available in the GX versions, with air condensing and matching remote condenser, or with water condensing and incorporated plate heat exchanger, as well as the GW version with the cooled water circuit. The PX versions have the optional DC brushless inverter compressor for efficient modulation of delivered power. Advanced microprocessor electronic regulation for integrated control of the unit with a standard RS485 card.
This document summarizes an electric screw compressor product line from CPG. It describes the key features and benefits of the compressors, including their industrial design, filtration system, advanced controller, gear-driven transmission, cooling system, maintenance schedule, and service parts. The compressors are available in models from 280-355kW for various industries and are designed to deliver high performance compressed air efficiently over their lifetime.
This document provides an overview of Cooltron's line of AC axial fans and blowers. It introduces the product line and discusses features such as voltage, fan size, speed, airflow, bearing type, materials, certifications, and stock information. Custom fan solutions are also described, including waterproof, thermistor controlled, and EC efficiency fans. Potential markets for AC fans and blowers are listed as gaming machines, telecommunications, industrial/instrumentation, office equipment, and more. Contact information is provided at the end.
This document provides technical specifications for an HVAC system for a new library building. It will include floor mounted package AC units with a total capacity of around 90 tons. The units will be connected to ductwork supplying conditioned air to diffusers throughout the building. Sound attenuation measures and vibration isolation are specified to maintain low noise levels. Performance and installation standards are defined.
Pneumatech's EH-series heatless regenerative air/gas dryers are designed to deliver a constant -40°F dew point for clean, dry compressed air. The dryers use a digital microprocessor controller and user-friendly panel to reliably monitor dryer operation and minimize operating costs through reduced purge loss and pressure drop. Key features include a -40°F outlet dew point, low pressure drop of less than 3 PSIG, and corrosion-resistant stainless steel tower screens.
The document describes a commercial heating, ventilation, and air conditioning (HVAC) system called SDHV (Small-Duct High-Velocity) that uses very small ducts to deliver conditioned air into rooms. The system provides even temperatures throughout spaces using quiet jets of air without drafts. It also offers energy efficiency and design flexibility to heat, cool, ventilate, and condition multiple zones using different equipment options. The document includes specifications for Unico HVAC air handlers and blower modules that are compatible with the SDHV small-duct system.
The units of the P series are highly configurable for complete control of the temperature, humidity and quality of the air by means of accessories such as the humidifier, the electric post-heating unit and high efficiency filters. The direct expansion PX versions are available, with air condensing and matching remote condenser, or with water condensing and incorporated plate heat exchanger, as well as the PW version with the cooled water circuit. The PX versions present the optional DC brushless inverter compressor for efficient modulation of delivered power. The Twin Sources solution is also available, with a second alternative cooling source. The Free Cooling maximises energy savings thanks to the external air that cools the water with an external dry cooler. Advanced microprocessor electronic regulation for integrated control of the unit with a standard RS485 card.
This document provides information on hourly analysis programs for air systems, including:
1. Descriptions of common air system types like single zone constant volume, VAV, dual duct, etc.
2. Details on outdoor air options, economizer operation, ventilation and reheat coils for different system types.
3. Explanations of zone components like assignment, diversity factors, and two methods for calculating zone and space airflows.
4. Overviews of the system sizing process and generation of design reports.
5. Information on plant systems that provide cooling and heating to air handler coils, including examples of chiller plants, hot water boiler plants, and load profiles.
RPF is a heat recovery unit with a high-efficiency counter-current plate exchanger (certified by Eurovent) that can obtain yields greater than 90% (Standard UNI EN 308). The unit has plug fans (with a synchronous permanent magnets motor with electronic control) that respect ERP2015. It has an F7 filter on the delivery line and a G4 filter on the extracted air line, a bypass damper (free-cooling), and advanced electronic adjustment. The adjustment function uses an advanced logic that enables you to manage the integration systems (electric or water coils), the anti-freeze function, night cooling mode, the fire/smoke alarm, and various ventilation control modes. The machine can interface with the outside thanks to the following communication protocols: modbus RTU, modbus ethernet and profibus DP slave.
Catalog: Inverter Mitsubishi FR-D700 Global
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This file is an introduction to VRV/VRF systems which are considered to be a DX or Centralized HVAC systems. VRF technology is on a wide spread nowadays and the market share is being expanded from being a niche market in Japan to a worldwide market including all continents.
Compact DX is an ultra-compact direct expansion precision air conditioning system with a depth as short as 490mm. It features a microchannel evaporator for high efficiency and capacities from 15kW to 45kW. Models are available in upflow and downflow configurations in four enclosure sizes. Controls allow for various temperature, humidity, pressure, and airflow control strategies. The system provides precise temperature control for cooled facilities with flexibility to meet various application requirements.
The document describes the AT-HD Heavy Duty Actuator Series from Air Torque. The series provides higher torque actuators for heavy duty applications based on a scotch yoke design. The actuators can be customized with options like travel stops, power modules, temperature ranges, materials, coatings, and manual overrides. Air Torque tests all actuators in-house to ensure quality and reliability.
Torque Systems designs high-performance brush servo motors that provide efficiency, flexibility, and long service life. Their TORQUEMASTER 4000 series motors deliver smooth operation throughout the full speed range with fast response, accurate control, and high torque-to-inertia ratios. They are designed for applications including factory automation, packaging, robotics, machine tools, and medical devices. The 4000 series provides superior low-speed performance and maximum power ratings with low thermal resistance for high-speed performance in a compact package.
URHE-CF is a heat recovery unit containing both a high-efficiency cross-flow plate exchanger, and a cooling circuit in heat pump mode. The cooling circuit has a high-efficiency scroll compressor, finned condensation/evaporation coil, thermostatic valve, 4-way valve, liquid separator, liquid indicator light, filter drier, and all the necessary measuring and safety components. The unit is fitted with centrifugal fans (that respect ERP2015) with forward blades and a directly coupled motor. The rotation speed is controlled by an EC device. It has G4 filters positioned before the plate exchanger (on both the fresh air and the extracted air), and a differential pressure switch for checking the filters are not clogged. The machine has an advanced adjustment system for managing the cooling circuit and the accessories used (integration coils, free-cooling kit).
Variable frequency drives for industrial applicationsNaila Syed
This document provides an overview of variable frequency drives (VFDs), including their components, operation, benefits, and applications. A VFD controls the frequency and voltage supplied to an electric motor, allowing it to run at variable speeds. It has three main sections - an input section that draws power, a rectifier that converts AC to DC, and an inverter that converts the DC back to a controlled AC waveform. VFDs provide benefits like energy savings, better process control, and protection for motors. Common industrial applications include fans, pumps, compressors, and chillers in HVAC systems.
The document provides technical specifications for various axial duct fans, axial jet fans, radial jet fans, and control units. It includes dimensions, motor specifications, airflow rates, noise levels, and certifications for each fan type. It also provides examples of system scripts that control fan speeds based on sensor readings for CO, fire, temperature, and other factors. Simulation results are presented analyzing smoke spread, temperature gradients, velocities, and visibility during a car fire scenario in a parking garage.
A fume extraction system works by using a fan to draw air containing harmful chemicals or fumes into a filter or other device that traps the contaminants, protecting workers. It describes a two-stage electrostatic precipitation process where particles are ionized and attracted to oppositely charged plates for removal from the air flow. Benefits include reducing harmful compounds and meeting exposure limits. Individual units have advantages like flexibility but centralized systems are more efficient for larger operations. Technical specifications are provided for a sample extraction unit model with details on airflow capacity, construction, electrical components, and dimensions. A proposal includes pricing for multiple units, ducting, installation, and air quality testing.
Similar to Portfolio overview - Blue Jay Fans - Aereco (20)
Understanding Inductive Bias in Machine LearningSUTEJAS
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELgerogepatton
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024Sinan KOZAK
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
A review on techniques and modelling methodologies used for checking electrom...nooriasukmaningtyas
The proper function of the integrated circuit (IC) in an inhibiting electromagnetic environment has always been a serious concern throughout the decades of revolution in the world of electronics, from disjunct devices to today’s integrated circuit technology, where billions of transistors are combined on a single chip. The automotive industry and smart vehicles in particular, are confronting design issues such as being prone to electromagnetic interference (EMI). Electronic control devices calculate incorrect outputs because of EMI and sensors give misleading values which can prove fatal in case of automotives. In this paper, the authors have non exhaustively tried to review research work concerned with the investigation of EMI in ICs and prediction of this EMI using various modelling methodologies and measurement setups.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
TIME DIVISION MULTIPLEXING TECHNIQUE FOR COMMUNICATION SYSTEMHODECEDSIET
Time Division Multiplexing (TDM) is a method of transmitting multiple signals over a single communication channel by dividing the signal into many segments, each having a very short duration of time. These time slots are then allocated to different data streams, allowing multiple signals to share the same transmission medium efficiently. TDM is widely used in telecommunications and data communication systems.
### How TDM Works
1. **Time Slots Allocation**: The core principle of TDM is to assign distinct time slots to each signal. During each time slot, the respective signal is transmitted, and then the process repeats cyclically. For example, if there are four signals to be transmitted, the TDM cycle will divide time into four slots, each assigned to one signal.
2. **Synchronization**: Synchronization is crucial in TDM systems to ensure that the signals are correctly aligned with their respective time slots. Both the transmitter and receiver must be synchronized to avoid any overlap or loss of data. This synchronization is typically maintained by a clock signal that ensures time slots are accurately aligned.
3. **Frame Structure**: TDM data is organized into frames, where each frame consists of a set of time slots. Each frame is repeated at regular intervals, ensuring continuous transmission of data streams. The frame structure helps in managing the data streams and maintaining the synchronization between the transmitter and receiver.
4. **Multiplexer and Demultiplexer**: At the transmitting end, a multiplexer combines multiple input signals into a single composite signal by assigning each signal to a specific time slot. At the receiving end, a demultiplexer separates the composite signal back into individual signals based on their respective time slots.
### Types of TDM
1. **Synchronous TDM**: In synchronous TDM, time slots are pre-assigned to each signal, regardless of whether the signal has data to transmit or not. This can lead to inefficiencies if some time slots remain empty due to the absence of data.
2. **Asynchronous TDM (or Statistical TDM)**: Asynchronous TDM addresses the inefficiencies of synchronous TDM by allocating time slots dynamically based on the presence of data. Time slots are assigned only when there is data to transmit, which optimizes the use of the communication channel.
### Applications of TDM
- **Telecommunications**: TDM is extensively used in telecommunication systems, such as in T1 and E1 lines, where multiple telephone calls are transmitted over a single line by assigning each call to a specific time slot.
- **Digital Audio and Video Broadcasting**: TDM is used in broadcasting systems to transmit multiple audio or video streams over a single channel, ensuring efficient use of bandwidth.
- **Computer Networks**: TDM is used in network protocols and systems to manage the transmission of data from multiple sources over a single network medium.
### Advantages of TDM
- **Efficient Use of Bandwidth**: TDM all
A SYSTEMATIC RISK ASSESSMENT APPROACH FOR SECURING THE SMART IRRIGATION SYSTEMSIJNSA Journal
The smart irrigation system represents an innovative approach to optimize water usage in agricultural and landscaping practices. The integration of cutting-edge technologies, including sensors, actuators, and data analysis, empowers this system to provide accurate monitoring and control of irrigation processes by leveraging real-time environmental conditions. The main objective of a smart irrigation system is to optimize water efficiency, minimize expenses, and foster the adoption of sustainable water management methods. This paper conducts a systematic risk assessment by exploring the key components/assets and their functionalities in the smart irrigation system. The crucial role of sensors in gathering data on soil moisture, weather patterns, and plant well-being is emphasized in this system. These sensors enable intelligent decision-making in irrigation scheduling and water distribution, leading to enhanced water efficiency and sustainable water management practices. Actuators enable automated control of irrigation devices, ensuring precise and targeted water delivery to plants. Additionally, the paper addresses the potential threat and vulnerabilities associated with smart irrigation systems. It discusses limitations of the system, such as power constraints and computational capabilities, and calculates the potential security risks. The paper suggests possible risk treatment methods for effective secure system operation. In conclusion, the paper emphasizes the significant benefits of implementing smart irrigation systems, including improved water conservation, increased crop yield, and reduced environmental impact. Additionally, based on the security analysis conducted, the paper recommends the implementation of countermeasures and security approaches to address vulnerabilities and ensure the integrity and reliability of the system. By incorporating these measures, smart irrigation technology can revolutionize water management practices in agriculture, promoting sustainability, resource efficiency, and safeguarding against potential security threats.
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapte...University of Maribor
Slides from talk presenting:
Aleš Zamuda: Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapter and Networking.
Presentation at IcETRAN 2024 session:
"Inter-Society Networking Panel GRSS/MTT-S/CIS
Panel Session: Promoting Connection and Cooperation"
IEEE Slovenia GRSS
IEEE Serbia and Montenegro MTT-S
IEEE Slovenia CIS
11TH INTERNATIONAL CONFERENCE ON ELECTRICAL, ELECTRONIC AND COMPUTING ENGINEERING
3-6 June 2024, Niš, Serbia
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
2. 2
RANGE : MECHANICAL EXHAUST VENTILATION COLLECTIVE TREATMENT
•One fan = Several dwellings
•Outside the dwellings
• Multi flat residential buildings
3. 3
RANGE : MECHANICAL EXHAUST VENTILATION COLLECTIVE TREATMENT
• Portfolio overview
HAT VTR VCR
Three products existing, each of them is declined in several versions
All projects needs are covered
4. 4
RANGE : MECHANICAL EXHAUST VENTILATION COLLECTIVE TREATMENT
• Airflows & pressures
HAT VTR VCR
Number of models 7 2 4
Max airflow (m3/h) 1500 700 3500
Max Pressure (Pa) 140 140 140 to 400
5. 5
RANGE : MECHANICAL EXHAUST VENTILATION COLLECTIVE TREATMENT
• Airflows & pressures
Airflow (m3/h)
Pressure (Pa)
VCR
0 700 1100 3500
140
400
VTR HAT
HAT
VTR
6. 6
RANGE : MECHANICAL EXHAUST VENTILATION COLLECTIVE TREATMENT
• Acoustic settings
HAT VTR VCR
Number of models 7 2 4
Max sound pressure
level Lp @ 3 m (dB(A))
Please refer to technical lefleafts
Max power
consumption (W/m3/h)
1701 1701 4001
1These values are given for the maximum speed rotation of the motor, which is not representative of the real consumption that
is always lower in real conditions (for more details, see our datasheets)
7. 7
RANGE : MECHANICAL EXHAUST VENTILATION COLLECTIVE TREATMENT
• Installation
HAT VTR VCR
Installation Outdoor Outdoor Outdoor and indoor
Orientation Horizontal Horizontal
Horizontal & vertical (only
inside)
Airflow orientation Horizontal Vertical Horizontal
Vibration isolator
Embedded into the fan base
(to be ordered separately)
Under the EC-motor -
Localisation New and refurbished buildings
New & renovation ; residential
and non residential buildings
8. 8
RANGE : MECHANICAL EXHAUST VENTILATION COLLECTIVE TREATMENT
• Maintenance
In case of maintenance the motor is
protected by the top cover
Top cover can be dismounted by unscrewing
4 screws
Impeller can be cleaned very easily
9. 9
RANGE : MECHANICAL EXHAUST VENTILATION COLLECTIVE TREATMENT
• Operating
Electronic commutation motor for minimal consumption with
permanent magnets
The electronic commutation motor used here offers an
optimum consumption all the time. Associated to the pressure
control device, it automatically adjusts the consumed power
to the requested airflow, while maintaining a constant
pressure.
10. 10
RANGE : MECHANICAL EXHAUST VENTILATION COLLECTIVE TREATMENT
• Pressure control
Standard codes are classified in two ways according to the existing regulation :
MD HD
400140
11. 11
RANGE : MECHANICAL EXHAUST VENTILATION COLLECTIVE TREATMENT
• MD – Manual Drive regulation
Fan speed potentiometer
(0 to 100% of the fan power)
Fan control connectors
(0-10V signal)
Fan power supply connectors
Power supply wires
12. 12
RANGE : MECHANICAL EXHAUST VENTILATION COLLECTIVE TREATMENT
• HD – Hygro dynamic regulation
Pressure setting (0-140Pa)
Power supply wires Pressure sensors
(HD)
Fan power supply connectors
Fan control connectors
(0-10V signal)
13. 13
RANGE : MECHANICAL EXHAUST VENTILATION COLLECTIVE TREATMENT
• Main competitive advantages
•Low energy consumption: EC motor associated with an automatic
pressure control device for HD versions
•Sturdiness and reliability: galvanized steel sheet construction
•Easy to install: a wide range for different installation place
•DCV compatible: built-in automatic pressure control device to optimize
DCV performance.
•Silent: acoustic foam and motor’s isolation to prevent vibrations
•Easy to maintain: the access to the impeller is optimized
•Pioneering square design : HAT square shape is under patent
14. 14
RANGE : MECHANICAL EXHAUST VENTILATION COLLECTIVE TREATMENT
• Accessories & Fan bases for HAT
1st step : chose the correct fan base for HAT fans (SBC)
Acoustic fan base is not included with HAT : must be ordered separately
How to chose the correct fan base ? Based on the fan name
2nd step : Chose the correct acoustic duct (SAS which are recommanded with SBC
base) or (SNS) (optionnal)
15. 15
SBC-250-160-C-EX
SBC-250-200-C-EX
SBC-250-250-C-EX
RANGE : MECHANICAL EXHAUST VENTILATION COLLECTIVE TREATMENT
• Acoustic fan bases for HAT
B, C and D are
the size of the fan
base
SBC-250-100-B-EX
SBC-250-125-B-EX
SBC-250-160-B-EX
SBC-250-200-B-EX
HAT-100-B HAT-125-B HAT-160-B
Ød : Duct diameter Ød : Duct diameter
HAT-160-C HAT-200-C HAT-250-C