Direct digital controls for HVAC systems

Direct digital controls for HVAC systems

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Now you can put the full power of high-performance direct digital control (DDC) systems to work and improve indoor air quality, increase energy efficiency, enhance comfort temperatures, and ensure trouble-free building operations. This practical sourcebook shows HVAC design engineers, DDC system designers, building managers, and anyone else responsible for interior environmental control how to develop peak-performing HVAC designs using state-of-the-art DDC technology. You will find step-by-step guidance on exactly how to design, install, and maintain high-performance DDC systems. This essential engineering reference book offers proven, field-tested methods for evaluating high-performance applications software, determining the pros and cons of various programming approaches, organizing the DDC design and installation process, procuring DDC systems and details, and supervising the construction and startup of DDC systems. You'll find expert advice on how to select DDC system points and choose the most cost-effective input/output devices, how to determine optimum configurations for DDC system hardware, and how to maintain and improve performance through ongoing-system support. Filled with a wealth of real-life examples and case studies that are presented from the unique perspectives of designers, users, and system manufacturers, Direct Digital Controls for HVAC Systems is the tool you need to maximize the DDC systems in HVAC design.... booster, 11 Pumps, horsepower calculation, 4-5, 14-15 Radiant heat, comparison with losses, 124 Radiant heating, from baseboard radiator, 124 Real -time point data, 25 Relative reduction ratio, 12 Sample program: chilled water temperature reset, 136 chiller plant control, ... 49 resistance temperature detectors (RTD), 48-51 stability, 49 temperature coefficient (TC), 48 thermistor, 48 Terminal regulatedanbsp;...

Title:Direct digital controls for HVAC systems
Author: Thomas B. Hartman
Publisher:McGraw-Hill Companies - 1993

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