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Trg trc017-en hvac system control
This document discusses the fundamentals of automatic control as applied to HVAC systems. It describes the basic components of a control loop, including the controlled variable, sensor, controller, controlled device, and controlled agent. The two main types of control loops - open loop and closed loop - are explained. Finally, different types of control action are covered, including two-position, floating, proportional, proportional-integral, and proportional-integral-derivative control.
Trg trc014-en vav systems air conditioning
A variable air volume (VAV) system varies the supply air volume to meet changing cooling and heating loads in spaces. VAV systems can provide fan and refrigeration energy savings at part load compared to constant volume systems. A VAV system consists of a central air handler, VAV terminal units with thermostats in each space, and a return air plenum. Fan capacity in a VAV system is modulated in response to changing loads using methods like variable inlet vanes or variable fan speed. System static pressure is also controlled to optimize energy efficiency. Application considerations for VAV systems include providing adequate ventilation, freeze protection, humidity control, and building pressure control.
Trg trc007-en fundamentals of hvac acoustics
The document discusses fundamentals of sound, including defining sound and noise, describing how sound waves propagate through air, and distinguishing between sound power which is unaffected by the environment and sound pressure which can be influenced by surroundings. It also covers topics like octave bands which divide frequencies into standardized ranges to simplify sound measurement and analysis.
Trg trc003-en refrigeration cycle
This document discusses refrigerants used in refrigeration systems. It notes that while ice can be used as a coolant to absorb heat from food, it has limitations as it melts at 32°F. Dry ice, which is solid carbon dioxide, sublimates directly from solid to gas at -109.4°F, allowing it to keep items colder than regular ice. The document introduces modern refrigerants that can absorb heat at temperatures below freezing and transfer it efficiently in a closed system, enabling precise temperature control for applications like food storage.
Vietnam vision 2
This document provides information on the features and capabilities of ABB Metering Systems including tariff structures, load profile data collection and storage, instrumentation, communications options, and available modules for inputs, outputs, communications, and RS232 connections. Key features include support for 16 time of use registers, 8 maximum demand registers, 12 seasons, 96 switching times, 450 days of load profile data collection in 30 minute intervals, voltage, current, power measurements per phase and system, local and remote reading, 9,600 baud communications, and hot-swappable input/output modules that do not affect device certification.
Vietnam training test
1. The document provides instructions for configuring a new Vision outstation in DataLink, including defining the outstation number, name, passwords, phone number, type, and communication settings. It also describes how to configure an import kWh channel and retrieve current day's data from the Vision meter using DataLink.
2. In DataVision, the instructions say to create a map for the Vision meter defined in DataLink, link the meter property to the import kWh channel, and use report and chart templates to create a report and chart for the retrieved import kWh data.
3. Advanced exercises are suggested to create additional outstations in DataLink, retrieve multi-channel data, and generate more reports and
Recommandé
Trg trc017-en hvac system control
This document discusses the fundamentals of automatic control as applied to HVAC systems. It describes the basic components of a control loop, including the controlled variable, sensor, controller, controlled device, and controlled agent. The two main types of control loops - open loop and closed loop - are explained. Finally, different types of control action are covered, including two-position, floating, proportional, proportional-integral, and proportional-integral-derivative control.
Trg trc014-en vav systems air conditioning
A variable air volume (VAV) system varies the supply air volume to meet changing cooling and heating loads in spaces. VAV systems can provide fan and refrigeration energy savings at part load compared to constant volume systems. A VAV system consists of a central air handler, VAV terminal units with thermostats in each space, and a return air plenum. Fan capacity in a VAV system is modulated in response to changing loads using methods like variable inlet vanes or variable fan speed. System static pressure is also controlled to optimize energy efficiency. Application considerations for VAV systems include providing adequate ventilation, freeze protection, humidity control, and building pressure control.
Trg trc007-en fundamentals of hvac acoustics
The document discusses fundamentals of sound, including defining sound and noise, describing how sound waves propagate through air, and distinguishing between sound power which is unaffected by the environment and sound pressure which can be influenced by surroundings. It also covers topics like octave bands which divide frequencies into standardized ranges to simplify sound measurement and analysis.
Trg trc003-en refrigeration cycle
This document discusses refrigerants used in refrigeration systems. It notes that while ice can be used as a coolant to absorb heat from food, it has limitations as it melts at 32°F. Dry ice, which is solid carbon dioxide, sublimates directly from solid to gas at -109.4°F, allowing it to keep items colder than regular ice. The document introduces modern refrigerants that can absorb heat at temperatures below freezing and transfer it efficiently in a closed system, enabling precise temperature control for applications like food storage.
Vietnam vision 2
This document provides information on the features and capabilities of ABB Metering Systems including tariff structures, load profile data collection and storage, instrumentation, communications options, and available modules for inputs, outputs, communications, and RS232 connections. Key features include support for 16 time of use registers, 8 maximum demand registers, 12 seasons, 96 switching times, 450 days of load profile data collection in 30 minute intervals, voltage, current, power measurements per phase and system, local and remote reading, 9,600 baud communications, and hot-swappable input/output modules that do not affect device certification.
Vietnam training test
1. The document provides instructions for configuring a new Vision outstation in DataLink, including defining the outstation number, name, passwords, phone number, type, and communication settings. It also describes how to configure an import kWh channel and retrieve current day's data from the Vision meter using DataLink.
2. In DataVision, the instructions say to create a map for the Vision meter defined in DataLink, link the meter property to the import kWh channel, and use report and chart templates to create a report and chart for the retrieved import kWh data.
3. Advanced exercises are suggested to create additional outstations in DataLink, retrieve multi-channel data, and generate more reports and
Vietnam training agenda
This document outlines a Vietnam training agenda covering the installation and use of DataLink Plus, DataVision, and Vietnam bitmaps. The agenda includes exercises on configuring outstations and systems, retrieving and viewing meter data, exporting load profiles, creating maps and charts, generating reports, and automatically producing charts and reports using queues. The document also provides step-by-step instructions for installing DataLink Plus, DataVision, and copying Vietnam bitmap files.
Vietnam data link training
This document provides instructions for several exercises involving configuring and retrieving data from a Vision meter outstation using DataLink software:
1. The first exercise describes configuring a Vision meter outstation with 14 inputs and setting communication and timing options.
2. The second exercise involves automatically and manually retrieving load profile data from the configured Vision meter for 7 days.
3. The third exercise uses DataLink system options to edit, view as a load profile chart, and identify flags for the retrieved Import kWh data.
4. The fourth exercise exports 1 day of data from the Vision meter to a CSV file and deletes the corresponding period data.
5. The final exercise draws a 2-month load
Vietnam vision 1
The document discusses the need for a new, modular meter that provides flexible functionality and cost-effective solutions for commercial and industrial sites. The key features of the meter include enhanced measurement capabilities, data logging, communications options via modules, and a user interface with a display and pushbutton. The modular design allows "hot swap" of modules to add communications, input/output, and other capabilities to meet various customer needs.
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Vietnam training agenda
This document outlines a Vietnam training agenda covering the installation and use of DataLink Plus, DataVision, and Vietnam bitmaps. The agenda includes exercises on configuring outstations and systems, retrieving and viewing meter data, exporting load profiles, creating maps and charts, generating reports, and automatically producing charts and reports using queues. The document also provides step-by-step instructions for installing DataLink Plus, DataVision, and copying Vietnam bitmap files.
Vietnam data link training
This document provides instructions for several exercises involving configuring and retrieving data from a Vision meter outstation using DataLink software:
1. The first exercise describes configuring a Vision meter outstation with 14 inputs and setting communication and timing options.
2. The second exercise involves automatically and manually retrieving load profile data from the configured Vision meter for 7 days.
3. The third exercise uses DataLink system options to edit, view as a load profile chart, and identify flags for the retrieved Import kWh data.
4. The fourth exercise exports 1 day of data from the Vision meter to a CSV file and deletes the corresponding period data.
5. The final exercise draws a 2-month load
Vietnam vision 1
The document discusses the need for a new, modular meter that provides flexible functionality and cost-effective solutions for commercial and industrial sites. The key features of the meter include enhanced measurement capabilities, data logging, communications options via modules, and a user interface with a display and pushbutton. The modular design allows "hot swap" of modules to add communications, input/output, and other capabilities to meet various customer needs.