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Willis Carrier invented centrifugal refrigeration in 1922 and today, more than half a century and 25,000 machines later, Carrier hermetic centrifugal liquid chillers still lead the way in comfort air conditioning and process cooling. What’s more, the modern day 19 Series centrifugals are specifically designed to afford significant dollar savings on utility bills, in every way possible. The Carrier 19 Series centrifugal design philosophy has always been to offer a variable line which meets each unique specification while at the same time maintaining low first costs and low operating costs. Incorporated in this philosophy are such features as the 19 Series inline impeller design, hermetically sealed compressor-motors, gear drives and refrigerant options. The success of this concept can be seen in the 25,000 plus machines which have been applied to date. Carrier’s hermetic centrifugals have always used various refrigerants at different tonnage ranges in order to keep the heat exchanger size and cost down. Now, over and above the low first cost concept, Carrier offers refrigerant options to meet your specific job requirements in the most efficient way possible. The full hermetic line consists of four models, each with a cycle, refrigerant and tonnage range specifically matched to your application demands. From 100 tons (352 kW) to 2,000 tons (7034 kW), the Carrier hermetic centrifugals are capable of performance at levels of .85 KW/Ton (3.0 KW/ kW) to .65 KW/Ton (2.3 KW/kW) and lower, depending on design conditions. With features such as mix-match capability, high performance heat exchangers, refrigerant options, multi-pass water boxes as well as the 19 Series hermetic compressor designs, a Carrier centrifugal can be optimized to meet any job requirement. The “Low Energy Consumption Curve” illustrates performance levels possible within the tonnage capabilities of the 19 Series hermetic line. You get the most efficient, most reliable, energy-conscious and completely packaged machine for your particular application. The hi-lift capabilities (up to 100 F) make the 19 line ideally suited for brine chilling, ice rink applications and process cooling. In areas with cooling tower restrictions, you can even specify a hi-lift Carrier centrifugal for use with closed circuit water condensing systems. The versatile Carrier centrifugals are also designed for low-lift requirements of today’s energy-conscious market. Carrier’s computer approach to matching the machine and capacity to a specific application gives you access to literally thousands of condenser, compressor, cooler, refrigerant and pass combinations. Initial costs are lower because you select only what you need — a smaller package. Operating costs are reduced because the mix-matching of components allows lower energy consumption selections. In addition, a Carrier Sales Engineer has the ability to optimize selections, by varying conditions, thru the use of the Performance Programs. Should your job requirements demand performance other than what is shown in this catalog, contact your Carrier Sales Engineer (refer to page 50 for the office nearest you). Thru computerized selection he will be able to design your “custom built” hermetic centrifugal. Not only can Carrier Sales Engineers optimize your refrigeration requirements but they can optimize your total system as well. Thru various specialized computer programs, for example, a Carrier Sales Engineer can vary your leaving chilled water temperature a degree or increase your chilled water temperature differential from 10 to 14 F and show how the total system is affected with respect to operating costs. In this complex market of low energy consumption as well as low first cost, Carrier can offer you productive ways to reduce your costs. Energy-saving, precision design: extends compressor motor life, saves on operating costs, increases electrical efficiency • Hermetic design • Gear-drive compressors • In-line impeller design • Refrigerant-cooled motors • Solid state capacity control • Thermal purge • 55 F (13 C) condenser water • Flash and thermal economizer • Multi-pass water boxes • Compressor-motor-heat exchanger mix-match Engineering excellence provides lower first costs and years of trouble-free service • Single-unit construction • Factory-wired oil pump starter • Permanent shipping bases • Prepiped motor lubrication package • Storage tank • Factory start-up • Integral chilled water sensor • Elapsed-time indicator Computer selection saves time, cuts costs Full line centrifugal service centers assure optimal care of your unit Convenience options offered for added energy efficiency, ‘tailor-made’ systems D 2 KW/kW KW/TON "Carrier Offers Low Energy-Consumption Selections" ï g u. tr UI a 3ased on corr.monty used cesign conditions of 2*pass cooler and condenser 0 000$ fouling factor i0 0005 “ S3 x 10 11 and 10 F (5 6 C) water temperature rise per ARi Standard $50'77 Data wii: va...