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long-term solution unaffected by refrig- erant phaseouts. Carrier’s decision to utilize non-ozone depleting HFC-134A refrigerant provides our customers with a safe and environmentally friendly choice without compromising efficiency. Reliability — The EvergreenTM chill- er’s simple, single-stage positive- pressure compressor, coupled with ASME-constructed heat exchangers, ensures superior reliability and sustain- ability. Carrier’s hermetic motors oper- ate in a clean-liquid, refrigerant-cooled environment. The hermetic design eliminates the potential for shaft seal leaks and refrigerant/oil loss. These are just some of the reasons why the Evergreen family of chillers has the industry’s lowest leak rate. Positive pressure design — The Evergreen chiller’s positive pressure design reduces the chiller size by up to 35% compared to low-pressure de- signs. The smaller size minimizes the need for valuable mechanical room floor space. In addition, positive pres- sure designs eliminate the need for costly low-pressure containment devices, reducing the initial cost of the system. The Evergreen chiller advantage — The Evergreen chiller can be shipped fully charged, minimizing start- up and maintenance time. Purge units are not required. The tight construc- tion of the Evergreen centrifugal chiller ensures that contaminants stay out and efficiency is maintained throughout the life of the chiller. Modular construction — The cool- er, condenser, and compressor assem- blies are completely bolted together, making the Evergreen chillers ideally suited for replacement projects where ease of disassembly and reassembly at the jobsite are essential. Marine container shipment (19XR, heat exchanger frame sizes 1 to 6 only) — The compact design allows for open-top container shipment to export destinations, ensur- ing product quality while reducing ship- ping cost. Optional refrigerant isolation valves — This system allows the refrigerant to be stored inside the chiller during servicing, reducing refrigerant loss and eliminating time- consuming transfer procedures. As a self-contained unit, the Evergreen chillers do not require additional remote storage systems. Optional pumpdown unit — Com- bined with the refrigerant isolation valves listed above, the optional pump- down unit eliminates complex connec- tions to portable transfer systems, thereby reducing service costs. In addi- tion, the optional pumpdown compres- sor meets Environmental Protection Agency’s (EPA’s) vacuum level require- ments that mandate minimizing refrig- erant emissions during service. Optional unit-mounted starter — Available in low-voltage wye-delta and solid state, Carrier’s unit-mounted starter provides a single point power connection, reducing chiller installation time and expense. (Available on heat exchanger frame sizes 1 to 7 only.) Hermetic compressor features: Single-stage design — This design increases product reliability by elimi- nating the additional moving parts as- sociated with multiple stage chillers, such as additional guide vanes and complex economizers. Aerodynamically contoured im- pellers — Impellers that use high back sweep main blades with low- profile intermediate splitter blades are aerodynamically contoured to improve compressor full-load and part-load operating efficiency. Tunnel diffuser — The tunnel design uses jet engine technology, increasing centrifugal compressor peak efficiency. Hermetic motors — The motors are hermetically sealed from the machine room; cooling is accomplished by spraying liquid refrigerant on the motor windings. This highly efficient motor cooling method results in the use of smaller, cooler-running motors than could be realized with air-cooled designs of the same type. Thus, her- metic motors require less inrush cur- rent and are smaller and lighter than comparable air-cooled motors. In addition, Carrier’s hermetic de- sign eliminates: • Compressor shaft seals that require maintenance and increase the likeli- hood of refrigerant leaks • Shaft alignment problems that occur with open-drive designs during start-up and operation, when equip- ment temperature variations cause thermal expansion • High noise levels that are common with air-cooled motors, which radi- ate noise to the machine room and adjacent areas • Machine room cooling requirements associated with air-cooled motors, which dissipate heat to the machine room Run testing — Compressors are 100% run-tested to ensure proper operation of all compressor systems, including oil management, vibration, electrical, power transmission, and compression. Heat exchangers feature: ASME certified construction — The American Society of Mechanical Engineers (ASME) standard requires the use of an independent agency to certify the design, manufacture, and testing of all heat exchangers, ensuring the ultimate in heat exchanger safety, reliability, and long life. Table of contents Page Features/Benefits ..........................................1-5 Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 ChillerComponents ........................................6,7 OptionsandAccessories ...................................... 8 PhysicalData ............................................9-13 Dimensions ........................................... 14,15 PerformanceData....................................... 16,17 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Controls ...............................................18-20 TypicalPipingandWiring ..................................21,22 ApplicationData .........................................23-32 GuideSpecifications ......................................33-42 2PDF Image | Carrier Product Data 19XR,XRV High-Efficiency Hermetic Centrifugal Liquid Chiller 50/60 Hz HFC-134a 19XR — 200 to 1500 Nominal Tons (703 to 5275 kW) 19XRV — 200 to 800 Nominal Tons (703 to 2813 kW)
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Carrier Product Data 19XR,XRV High-Efficiency Hermetic Centrifugal Liquid Chiller 50/60 Hz HFC-134a 19XR — 200 to 1500 Nominal Tons (703 to 5275 kW) 19XRV — 200 to 800 Nominal Tons (703 to 2813 kW)Original File Name Searched:
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