This comprehensive and acclaimed volume provides a wealth of practical information on the design, installation, and operation of air conditioning, heating, and ventilating systems.

The Sheet Metal/HVAC Pro Calc is a versatile calculator that enables tradesmen to calculate complex problems with dedicated key functions that are labeled in standard industry terms. The calculator has other advanced built-in construction-math functions to enable HVAC and sheet metal tradesmen to do their work alongside other trades. In addition to the built-in functions, this calculator can handle order of operation, using the parenthesis operators. It can also perform square, cube, square root, and cube root calculations. Plus, it works as a regular calculator with typical symbols. The calculator can be used to determine ArcK constant for convenient Arc length solutions. And it has an offset functions for "S-shaped" bends in ductwork. It can also help solve the layout for wrapper length, centerline radius, and the angle. Features CUSTOM HVAC & SHEET METAL functions let you simplify Test and Balance (TAB) with built-in Fan Law function: CFM, RPM, SP and BHP; velocity and velocity pressure: FPM, VP, MPS, KPa; ArcK constant for convenient Arc length solutions; and offset functions FUNCTIONS AND TERMINOLOGY consistent with sheet metal and HVAC trade terminology; x, y, r (radius), theta and Seg Radius functions; works in and converts between feet-inch-fractions, decimal feet and inches and metric also converts between polar and rectangular coordinates PARENTHESIS OPERATORS allows you to easily enter complex formulas; order of operations calculations retain familiar mathematical hierarchy as a default preference; trigonometric operation and sequence; and you can calculate square, square root, cube, and cube root; easy non-90 triangles and right-angle solutions for ductwork length and angles MEMORY STORAGE conveniently stores frequently used constants or interim solutions; Memory swap lets you easily insert stored values into current calculations and simultaneously store calculated values while recalling and displaying Memory contents; other settable User Preferences INVALUABLE TRADE TOOL PAYS FOR ITSELF by reducing headaches, saving time, and preventing expensive material errors on all your projects. Comes with a rugged shock, dust and moisture-resistant Armadillo Gear protective case, quick reference guide and complete user's guide, a long-life battery, and a one-year limited warranty.

A comprehensive handbook and essential reference, providing instant access to all the data, calculations, and equations needed for modern HVAC design.

* A broad range of disciplines--energy conservation and air quality issues, construction and design, and the manufacture of temperature-sensitive products and materials--is covered in this comprehensive handbook * Provide essential, up-to-date HVAC data, codes, standards, and guidelines, all conveniently located in one volume * A definitive reference source on the design, selection and operation of A/C and refrigeration systems

* A classic reference providing the applications, on-the-job insights, codes and specifications, and direction needed to design HVAC systems * Covers residential, commercial, and industrial systems * NEW coverage of Energy Conservation and Digital Control Practice and greater emphasis on indoor air quality

Drawing from the best of the widely dispersed literature in the field and the authorÕs vast professional knowledge and experience, here is todayÕs most exhaustive, one-stop coverage of the fundamentals, design, installation, and operation of industrial refrigeration systems. Detailing the industry changes caused by the conversion from CFCs to non-ozone-depleting refrigerants and by the development of microprocessors and new secondary coolants, Industrial Refrigeration Handbook also examines multistage systems; compressors, evaporators, and condensers; piping, vessels, valves and refrigerant controls; liquid recirculation; refrigeration load calculations; refrigeration and freezing of food; and safety procedures. Offering a rare compilation of thermodynamic data on the most-used industrial refrigerants, the Handbook is a mother lode of vital information and guidance for every practitioner in the field.

Air conditioning boosts man's efficiency no less than his comfort. Air-conditioned homes, offices, and factories unmistakably raise human productivity and reduce absenteeism, turnover, mistakes, accidents and grievances, especially in summer. Accordingly, many employers every year cool workrooms and offices to raise summer profits. Employees in turn find cool homes enhancing not only comfort and prestige but also personal efficiency and income. With such economic impetus, low-cost summer cooling must irresistibly spread to all kinds of occupied buildings. Refrigeration provides our best cooling, serving well where people are closely spaced in well-constructed, shaded, and insulated structures. However, its first and operating costs bar it from our hottest commercial, industrial, and residential buildings. Fortunately, evaporative cooling is an economical substitute in many regions. First used in Southwest homes and businesses and in textile mills, it soon invaded other fields and climates. In 1946, six firms produced 200,000 evaporative coolers; in 1958, 25 firms produced 1,250,000, despite the phenomenal sale of refrigerating window air conditioners. Though clearly secondary to refrigeration, evaporative cooling is 60 to 80 percent is economical for moderate income groups and cheaper to buy and operate. Thus, it climates where summers are short. Moreover, it cheaply cools hot, thinly constructed mills, factories, workshops, foundries, powerhouses, farm buildings, canneries, etc., where refrigerated cooling is prohibitively expensive.