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Features/Benefits (cont) Cooler tube expansion — Cooler tube expansion at center support sheets prevents unwanted tube movement and vibration, thereby reducing the possibility of premature tube failure. Double-grooved tube sheet holes — This design eliminates the possibility of leaks between the water and refrigerant system, increasing product reliability. Condenser baffle — The baffle pre- vents direct impingement of high ve- locity compressor gas onto the con- denser tubes. The baffle eliminates the related vibration and wear of the tubes and distributes the refrigerant flow evenly over the length of the vessel for improved efficiency. Closely spaced intermediate sup- port sheets — Support sheets pre- vent tube sagging and vibration, there- by increasing heat exchanger life. Refrigerant filter drier isolation valves — These valves allow filter re- placement without pumping down the chiller, which means less service time and less expense. FLASC (Flash subcooler) — The subcooler, located in the bottom of the condenser, increases the refrigeration effect by cooling the condensed liquid refrigerant to a lower temperature; the result is reduced compressor power consumption. AccuMeterTM system — The Accu- Meter system regulates refrigerant flow according to load conditions, providing a liquid seal at all operating conditions and eliminating unintentional hot gas bypass. Microprocessor controls feature: Direct digital Product Integrated Control (PIC II) — Carrier’s PIC II provides unmatched flexibility and functionality. Each unit integrates directly with the Carrier Comfort Network (CCN), providing a system solution to controls applications. International Chiller Visual Con- trol (ICVC) — The ICVC, which can be configured to display units in English or metric, provides unparal- leled ease of operation. A 1/4 VGA 320 x 240 element LCD (liquid crystal display) features 4 menu- specific softkeys. The default display offers all in one glance review of key chiller operation data, simplifying the interaction between chiller and user. Features include: • Display of over 125 operating, sta- tus, and diagnostic messages for improved user interface • Monitoring of over 100 functions and conditions to protect the chiller from abnormal conditions • Modular pull-out/plug-in design, reducing wiring requirements and providing easy installation • Low-voltage (24 v) design, providing the ultimate assurance of personal safety and control integrity The display modes include 4 standard languages: • English • Chinese • Japanese • Korean Other languages are available. Automatic capacity override — This function unloads the compressor whenever key safety limits are ap- proached, increasing unit life. Chilled water reset — Reset can be accomplished manually or automatical- ly from the building management sys- tem. Reset saves energy when warmer chilled water can be used. Demand limiting — This feature limits the power draw of the chiller during peak loading conditions. When incorporated into the Carrier Comfort Network building automation system, a red line command holds chillers at their present capacity and prevent any other chillers from starting. If a load shed signal is received, the compressors are unloaded to avoid high demand charges whenever possible. Ramp loading — Ramp loading en- sures a smooth pulldown of water loop temperature and prevents a rapid in- crease in compressor power consump- tion during the pulldown period. Automated controls test — The test can be executed prior to start-up to verify that the entire control system is functioning properly. 365-day real time clock — This feature allows the operator to program a yearly schedule for each week, week- ends, and holidays. Occupancy schedules — Schedules can be programmed into the controller to ensure that the chiller only operates when cooling is required. Extensive service menu — Unau- thorized access to the service menu can be password-protected. Built-in diagnostic capabilities assist in trouble- shooting and recommend proper cor- rective action for pre-set alarms, result- ing in greater up time. Alarm file — This file maintains the last 25 time and date-stamped alarm and alert messages in memory; this function reduces troubleshooting time and cost. Configuration data backup — Non-volatile memory provides protec- tion during power failures and elimi- nates time consuming control reconfiguration. 3PDF 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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