Trane is proud to offer an extensive line of water-cooled chillers ranging from 20 to 4,000+ tons. Many process cooling jobs require temperature ranges that are outside the allowable minimum and maximum operating values for the chiller. The increased performance of the UC800 Controller allows the chiller to operate longer at higher efficiency, and with greater stability. Catalogue Chiller trane RTHE. Since leaving solution temperatures below 40°F (4.4°C) result in suction temperature at or below the freezing point of water, a glycol solution is required for all low temperature and ice-making machines. Special consideration should be given to low ambient units. Water Temperature. The Trane chiller product line includes scroll, helical rotary and High speed centrifugal chillers, ranging in capacities from 14 to 14000 kW. Local code requirements may take precedence. The maximum evaporator water flow rate is also given. Ducting individual fans is not recommended. Thiruporur, Chennai No. Building owners often cite pump related energy savings as the reason that prompted them to install a VPF system. All building water piping must be flushed prior to making final connections to the chiller. For example, high ambient temperatures combined with a restricted air flow situation will generally not cause the air-cooled model RTAE chiller to shut down. For maximum isolation effect, water lines and electrical conduit should also be isolated. This allows the controller to respond faster and maintain stable leaving-water temperatures. Trane Series R® Chiller – Model RTWA The RTWA offers high reliability, ease of installation, and energy efficiency due to its advanced design, low speed/ direct-drive compressor and proven Series R chiller performance. When determining unit placement, careful consideration must be given to assure a sufficient flow of air across the condenser heat transfer surface. Catalogue Cassette Trane Catalogue âm trần nối ống gió Trane (Odyssey) Catalogue đặt sàn nối ống gió công suất lớn Rau p Ttv Catalogue treo tường Trane gas 410 Catalogue đặt sàn nối ống gió Odyssey Trane 2. setpoint. Today’s Stealth™ chillers offer predictive controls that anticipate and compensate for load changes. The actual savings possible with such strategies depends on the application dynamics and should be researched by consulting your Trane Systems Solutions Representative and applying an analysis tool from the Trace software family. (See “Weights,” p. 2 RTAG-PRC001A-EN Introduction The new Trane model RTAG chiller is the result of a search for higher reliability, higher energy efficiency, and lower sound levels for today’s environment. Packaged Climate Changer Air Handler – Product Catalog. York Air Cooled Screw Chiller . Product Catalog Air Cooled Chillers Model RTAG 085 to 205 Nominal Tons (50 Hz) October 2017 RTAG-PRC001A-EN. Transverse modular coil design for easy access for coil cleaning, Up to 40% lower refrigerant charge compared to previous evaporator designs, Three levels of sound reduction available to meet various job site acoustical requirements, Robust drive design using film capacitors for longer drive life, Industrial bearing system designed for the life of the chiller, Shuttle valve reduces the differential oil pressure required for cold weather, All aluminum alloy coils reduce potential for corrosion, Rapid Restart capability minimizes downtime, Easy hookup to Uninterruptable Power Supply (UPS) for mission critical applications, New 7 inch color touch screen display with graphics, Enhanced flow management provides unmatched system performance in variable flow water systems, Adaptive Control™ keeps the chiller running in extreme conditions, Optional condenser fan speed control to help meet preset nighttime sound requirements, Standard Ambient Range = 32 to 105°F (0 to 40.6°C), High Ambient Range = 32 to 125°F (0 to 52°C), Standard, with a leaving solution range of 40 to 68°F (4.4 to 20°C), Low temperature process cooling, with leaving solution less than 40°F (4.4°C). The Trane scroll chiller with many new improvements, now brings an exciting new compressor to the commercial market — the Trane scroll compressor. Units without Harmonic Filtration Option or Transformer (digits 28, 29 = 0X) are standard length. The Trane chiller product line includes scroll, helical rotary and High speed centrifugal chillers, ranging in capacities from 14 to 14000 kW. If the cooling load is less than 50 percent of the system capacity, Chiller 1 would be able to satisfy the entire call for cooling. You have been successfully registered. The chiller’s temperature control sensor is located in the waterbox. Trane RTAE chillers have three distinct leaving water categories: •Standard, with a leaving solution range of 40 to 68°F (4.4 to 20°C), •Low temperature process cooling, with leaving solution less than 40°F (4.4°C), •Ice-making, with a leaving solution range of 20 to 68°F (-6.7 to 20°C). Evaporator damage may result above this temperature. The Trane chiller product line includes scroll, helical rotary and High speed centrifugal chillers, ranging in capacities from 14 to 14000 kW. The minimum ambient temperatures are based on still conditions (winds not exceeding five mph). It is possible to operate a pair of chillers more efficiently in a series chiller arrangement than in a parallel arrangement. Trane provides a factory-installed water flow switch monitored by UC800 which protects the chiller from operating in loss of flow conditions. Trane continues to deliver its reliability and energy fitness commitment on its newest line of gear-drive centrifugal water chillers, the Model CVGF. York Air Cooled Chillers Catalogue. 0966 073 073 0909.337.438. Get in-depth information on Trane RTAF250 Chillers including detailed technical specifications. Adaptive Controls directly sense the control variables that govern the operation of the chiller: evaporator pressure and condenser pressure. CATALOGUE LẮP ĐẶT C atalogue lắp đặt Mcv Catalogue lắp đặt áp trần Mcx-Iom-0707 C= Ice-making (20 to 68°F/-7 to 20°C) w/ Hardwired Interface, U= Trane Commercial Systems, Pueblo, CO USA, 3= InvisiSound Ultimate (Compressor Sound Attenuation, Line Wraps, Reduced Fan Speed), 1= Factory Installed - Other Fluid (15 cm/s), A= Factory Insulation - All Cold Parts 0.75”, B= Evaporator-Only Insulation - High Humidity/Low Evap Temp 1.25”, C= CRN or Canada Equivalent Pressure Vessel Code, D= Circuit Breaker w/ High Fault Rated Control Panel, 1= LonTalk® Interface LCI-C (Tracer™ Compatible), 2= BACnet® MS/TP Interface (Tracer compatible), C= Remote Leaving temp and Demand Limit Setpoints, E= Programmable Relay and Leaving Water and Demand Limit Setpoint, G= Percent Capacity and Leaving Water and Demand Limit Setpoint, H= Percent Capacity and Programmable Relay, B= Seismic to International Building Code (IBC), C= California Office of Statewide Health Planning and Development (OSHPD) Certification, D= Wind Load for Florida Hurricane 175 MPH, (a) Units are extended length if either of the following are selected: Transformer (model number digit 28 = 1), Harmonic Filtration Option (model number digit 29 = 1). The dual mode control functionality is integrated right into the chiller. Trane Air Cooled Scroll Chiller Figure 1. VPF systems present building owners with several cost saving benefits that are directly related to the pumps. To reduce heat loss and prevent condensation, insulation should be applied. 200 Ton Air Cooled Chiller . A “rightsized” chiller plant with ice storage operates more efficiently with smaller support equipment while lowering the connected load and reducing operating costs. HERE’S HOW: • Simple design with 64 percent fewer Both warm air recirculation and coil starvation cause reductions in unit efficiency and capacity due to higher head pressures. This reduced need for cooling results in significant utility cost savings and source energy savings. Units should be separated from each other by sufficient distance to prevent warm air recirculation or coil starvation. Temperature out of range system solution. At elevations substantially above sea level, the decreased air density will decrease condenser capacity and, therefore, unit capacity and efficiency. Điều hòa Trane đã phát triển trên 150 năm và có mặt hơn 100 quốc gia. Unlike the "decoupled" system design, the bypass can be positioned at various points in the chilled water loop and an additional pump is unnecessary. 0. Condenser coils and fan discharge must be kept free of snow or other obstructions to permit adequate airflow for satisfactory unit operation. Adequate clearance for evaporator, condenser and compressor servicing should be provided. Mfg. Variable speed drives on all condenser fans save energy at part load operation, as well as lower sound levels even further as fan speeds are reduced during part load operation. Unobstructed flow of condenser air is essential to maintain chiller capacity and operating efficiency. For example, if the chiller had a higher flow rate, there would simply be more water bypassing and mixing with warm water returning to the chiller. Với những ưu điểm sau: Điều hòa, chiller Trane, thương hiệu Mỹ, xuất xứ: Thái Lan, hàng đầy đủ CO, CQ, bảo hành chính hãng 12 tháng, hàng có sẵn, giao hàng ngay, miễn phí tư vấn, vận chuyển. The major advantages of the RTWA are: • 99.5% reliable. Another energy saving strategy is to design the system around chillers arranged in series. If the cooling load is less than 50 percent of the systems capabilities, either chiller can fulfill the demand. Chilled-water systems that vary the water flow through chiller evaporators have caught the attention of engineers, contractors, building owners, and operators. There should be no roof or structure covering the top of the chiller. Trane Air Cooled Chiller Sizes . Consult your local Trane account manager for applications or selections involving low temperature or ice making machines. The microprocessor and capacity control algorithms are designed to handle a maximum of 10% change in water flow rate per minute in order to maintain ± 0.5°F (0.28°C) leaving evaporator temperature control. Verified Supplier. If the installed system volume does not meet the above recommendations, the following items should be given careful consideration to increase the volume of water in the system and, therefore, reduce the rate of change of the return water temperature. Soft loading applies to the leaving chilled-water temperature and demand limit setpoints. Coil starvation occurs when free airflow to the condenser is restricted. Operation is minimally affected in many restricted air flow situations due to its advanced Adaptive Control™ microprocessor which has the ability to understand the operating environment of the chiller and adapt to it by first optimizing its performance and then staying on line through abnormal conditions. therefore, are recommended for sound sensitive installations. Figure 3, p. 10 shows a strategy where each chiller is trying to achieve the system design set point. Trane AquaStream 3G chillers are designed for year-round operation over a range of ambient temperatures. Mfg: Trane Model: RTAA 1004XF01A1COKBDFN Stock No. An attractive chilled water system option may be a variable primary flow (VPF) system. Get in-depth information on Trane RTAF200 Chillers including detailed technical specifications. large buildings around the globe, we take responsibility to help Flow rates exceeding those listed may result in very high pressure drop across the evaporator and/or evaporator tube erosion. Provide Sufficient Unit-to-Unit Clearance. • (10) Fans, 2-1/2 hp, 1.5 amp draw, 460 volt. Figure 2. MÁY LẠNH TRANE 0966.073.073. For capacities at other fouling factors, see Performance Selection Software. We have emailed you a verification link to to complete your registration. Typical series chiller arrangement. However, they tend to be detrimental to operation in lower ambients due to the accompanying loss of adequate head pressure. See Close-Spacing and Restricted Airflow Engineering Bulletin RLC- PRB037*-EN for more information. Other chillers would typically shut down on a high pressure nuisance cut-out in these conditions. Trane Parts - Catalog (American Standard is the same as Trane) We list Trane parts we either stock or can have shipped to you right away. CenTraVac Duplex chillers are among the Trane products within the EcoWise™ product portfolio and are available with either R-123 or next-generation refrigerants R-514A or R-1233zd, both featuring ultra-low global warming potential (GWP) of less than 2. Similarly, if the chiller shuts down on a non-latching diagnostic and the diagnostic later clears itself, a Rapid Restart will be initiated. Product Category: Process Equipment, Sub Category: Industrial Chillers : Refurbished: 1: Trane 25 Ton Chiller: Trane 25 Tons @ 40 Deg. Trane - một công ty toàn cầu trị giá hàng tỷ đô la với khoảng 400 chi nhánh, văn phòng và nhà máy trên toàn cầu nằm ở nhiều quốc gia khác nhau - được công nhận trên toàn thế giới về các sản phẩm chất lượng và công nghệ hàng đầu. leadership within our industry, provides the flexibility you need to U96D33776 Trane Rotary Screw Air Cooled Chiller 100 Ton. Large adjustments due to load or setpoint changes are made gradually, preventing the compressor from cycling unnecessarily. An ice storage system uses the chiller to make ice at night when utilities generate electricity more efficiently with lower demand and energy charges. = Trane Commercial Systems, Pueblo, CO USA, = InvisiSound Ultimate (Compressor Sound Attenuation, Line Wraps, Reduced Fan Speed), = Factory Installed - Other Fluid (15 cm/s), = Factory Insulation - All Cold Parts 0.75”, = CRN or Canada Equivalent Pressure Vessel Code, = Circuit Breaker w/ High Fault Rated Control Panel, = Remote Leaving temp and Demand Limit Setpoints, = Programmable Relay and Leaving Water and Demand Limit Setpoint, = Percent Capacity and Leaving Water and Demand Limit Setpoint, = Percent Capacity and Programmable Relay, = Seismic to International Building Code (IBC), = California Office of Statewide Health Planning and Development (OSHPD) Certification, = Wind Load for Florida Hurricane 175 MPH, Upload manuals that we do not have and get, Building Automation and Chiller Plant Control, Factory Mounted Flow Proving and Flow Control. Wall sleeves and rubber isolated piping hangers can be used to reduce sound transmitted through water piping. Trane leads the industry in Documents. It may also be easier to apply variable primary flow in an existing chilled water plant. Adequate chilled water system water volume is an important system design parameter because it provides for stable chilled water temperature control and helps limit unacceptable short cycling of chiller compressors. Trane is an equal opportunity and affirmative action employer. A volume buffer tank located in the return water piping. An acoustical engineer should always be consulted on critical applications. Ice making control includes dual setpoints and safeties for ice making and standard cooling capabilities. Staggering the chiller set points is another control technique that works well for preferentially loading Chiller 1. • Model RTAA 1004XF01A1COKBDFN • S/N U96D33776. A base or foundation is not required if the selected unit location is level and strong enough to support the unit’s operating weight. Stepway Associates Engineering Projects. Trane recognizes the importance to continuous improvement of the Chiller ice making efficiencies are typically similar to or even better than standard cooling daytime efficiencies as a result of night-time drybulb ambient relief. Whenever two or more units are used on one chilled water loop, Trane recommends that their operation be coordinated with a higher level system controller for optimum system efficiency and reliability. It does this by internally filtering the setpoints to avoid reaching the differential-to- stop or the demand limit. This tradition of using excellence to meet market demands is illustrated with the new Trane AquaStream 3G the 55-450 kW air-cooled cooling unit. delivers comfort in buildings or process performance in industrial • High energy efficiency. User manuals, Trane Chiller Operating guides and Service manuals. Contact us to find out more. As system loads increase, Chiller 2 is started to meet any portion of the load that Chiller 1 can not meet. provide the right system. Trane chillers are designed for year-round operation over a range of ambient temperatures. Trane's broad product portfolio, developed over decades of Expansion tanks are also usually required so that chilled water volume changes can be accommodated. applications, Trane product innovations play an important role in the It is not recommended to locate the equipment near occupied, sound sensitive areas of the building or near windows. Trane CVHF Manuals Manuals and User Guides for Trane CVHF. Figure 2 below shows a simple example of a mixed water piping arrangement change that can permit reliable chiller operation while meeting such cooling conditions. As system loads increase, the Chiller 2 becomes preferentially loaded as it attempts to meet the leaving chilled water. This happens through combined actions of compressor and/or fan staging. Trane Tracer building management systems can measure demand and receive pricing signals from the utility and decide when to use the stored cooling and when to use the chiller. Typically, a two-minute water loop circulation time is sufficient to prevent short water loop issues. • (2) Trane Compressors, Model CHHN050, 84 amp draw, 460 volt each. The stored ice reduces or even replaces mechanical cooling during the day when utility rates are at their highest. Trane chiller - chiller turnkey projects. For applications in which system energy savings is most important and tight temperature control is classified as +/- 2°F (1.1°C), up to 30 percent changes in flow per minute are possible. Trane chillers are relied upon for both comfort and process applications in every corner of the world. Minimum water volume for a process application. (2) Trane Compressors, Model CHHN050, 84 amp draw, 460 volt each. •Larger system supply and return header piping (which also reduces system pressure drop and pump energy use). Điện thoại liên hệ: 0977760186. The Trane screw compressor also has excellent capabilities for “lift,” which affords an opportunity for “lift,” which affords an opportunity for savings on the evaporator water loop. Trane Rotary Screw Air Cooled Chiller 100 Ton . The minimum water flow rates are given in the chapter “General Data,” p. 16 of this catalog. Locating the equipment away from structures will also prevent sound reflection, which can increase sound levels at property lines or other sensitive points. DBPF255.5 Serial No. Welcome to ManualMachine. • Low sound levels. Flow rate out of range systems solution. We have emailed you a verification link to, Series R Air-Cooled Helical Rotary Liquid Chillers, Series R Helical Rotary Chiller model RTAC, Split System Condensing Units —RAUJ Remote Chiller Evaporators, Thermostats Programmable and Non-Programmable, AdaptiSpeed™ technology assures optimal performance at all operating conditions, Permanent magnet motor - up to 4% more efficient than an induction motor, Soft start provided as standard to reduce power, One of the first true 24 pulse drive systems in the industry, Compressor design optimized for variable speed operation, Rotor profile designed for maximum efficiency at higher speeds, Shuttle valve enhances compressor oil management, Variable speed permanent magnet motors on ALL condenser fans for increased efficiency and lower sound, Larger diameter condenser fans operate at lower speed with optimized blade design, Integral compressor muffler lowers sound levels by, Optional metallic discharge and suction bellows reduce compressor sound by, Over 20% higher full load efficiency than ASHRAE, Over 40% higher part load efficiency than ASHRAE, Drive designed to last the life of the chiller, High power factor at all load points reducing the need for power factor correction capacitors. Larger system supply and return header piping (which also reduces system pressure drop and pump energy use). † 60Hz chiller above 3000 tons and/or 15000 volts † 50Hz chiller above 3000 tons and/or 15000 volts District Cooling Trane Adaptive Control™ algorithms and multistage design allow all CenTraVac™chillers to operate at low leaving water temperatures without the use of glycol or other freeze inhibitors. temperatures, humidity, and air quality at minimal costs and lowest Trane Rotary Screw Air Cooled Chiller 100 Ton. Our product innovations are the result of our drive to help you The chiller controller uses soft loading except during manual operation. Greater wind speeds will result in a drop in head pressure, therefore increasing the minimum starting and operating ambient temperature. Trane 120 Ton Chiller . If a chiller is attached to an on/off load such as a process load, it may be difficult for the controller to respond quickly enough to the very rapid change in return solution temperature if the system has only the minimum water volume recommended. In the example shown, both the chiller and process flow rates are equal, however, this is not necessary. (10) Fans, 2-1/2 hp, 1.5 amp draw, 460 volt. 92, First Floor, Chengelpat Main Road, MLA Office, Thiruporur, Chennai - 603110, Dist. environmental impact. Other control strategies made possible with the Tracer UC800 controls are: Feedforward is an open-loop, predictive control strategy designed to anticipate and compensate for load changes. The 200-Ton portable chiller package features a Trane RTAC chiller unit. Trane Chillers Air-Cooled Chillers. Two detrimental conditions are possible and must be avoided: warm air recirculation and coil starvation. JBJ Artica Chiller Manual Documents. This location allows the building to act as a buffer to slow the rate of change of the system water temperature. Carrier Air Cooled Chillers. The air-cooled model CGAM chiller will operate in ambient temperatures of 46°C. Compressor speed is used to control capacity of the chiller, optimizing mathematically with the condenser fan speed to provide the highest level of performance. The system layout in Figure 1 can satisfy the process. This keeps cooling capacity available until the problem can be solved. As a result, it is advisable to protect air-cooled chillers from continuous direct winds exceeding 10 mph (4.5 m/s) in low ambient conditions. It is also possible to achieve higher entering to leaving chiller differentials, which may, in turn, provide the opportunity for lower chilled water design temperature, lower design flow, and resulting installation and operational cost savings. Climate Commitment. Product Catalog AquaStream 3G trane air cooled chiller catalogue pdf sheet Air Cooled Liquid Chillers. View and Download Trane Air-Cooled Scroll Chillers Model CGAM instruction manual online. Trane Blower Coil Air Handler – 400 to 3000 cfm – Brochure (2002) Trane Split System Cooling Units 7 1/2 to 20 Tons – Air Handlers 5 to 20 Tons – Cooling Coils 10 Tons – Brochure 2004 The chiller’s maximum leaving chilled water temperature of 68°F (20°C) prevents direct supply to the load. •A volume buffer tank located in the return water piping. CNT = Control board, MOT = Motor and so on. Leaving Water Temperature Limits. Series chiller arrangements can be controlled in several ways. The Adaptive Frequency™ microprocessor will attempt to keep the chiller on-line when high or low ambient conditions exist, making every effort to avoid nuisance trip-outs and provide the maximum allowable tonnage. It uses evaporator entering-water temperature as an indication of load change. Many process cooling jobs require flow rates that cannot be met with the minimum and maximum published values within the RTAE evaporator. Since the environment in which a sound source is located affects sound pressure, unit placement must be carefully evaluated. Whenever possible, the chiller is allowed to continue making chilled water. Trane Rotary Screw Air Cooled Chiller 100 Ton Mfg: Trane Model: RTAA 1004XF01A1COKBDFN Stock No. We have 4 Trane CVHF manuals available for free PDF download: Installation, Operation And Maintenance Manual, Engineering Bulletin, Installation Manual Trane RTAE chillers have three distinct leaving water categories: • Standard, with a leaving solution range of 40 to 68°F (4.4 to 20°C) Trane Blower Coil Air Handler – Product Catalog. address your needs: reliable comfort and performance at the right A Rapid Restart is performed after a momentary power loss occurs during operation. Recommended minimum space envelopes for servicing are located in the dimensional data section and can serve as a guideline for providing adequate clearance. With installed chillers in over 50% of all Standard smart control strategies for ice storage systems are another advantage of the RTAE chiller. Trane 450 Ton Trane Centravac Water Chiller, Model #cvhe 450 With Hp Motor 3/60/4160v . Manuals are available through online product portal pages or from your local office. Sound power levels for chillers are available on request. Call +91-8068442334 Dial Ext 817 when connected. The minimum space envelopes also allow for control panel door swing and routine maintenance requirements. Cross winds, those perpendicular to the condenser, tend to aid efficient operation in warmer ambient conditions. When any one of these variables approaches a limit condition when damage may occur to the unit or shutdown on a safety, Adaptive Controls takes corrective action to avoid shutdown and keep the chiller operating. Product Catalog March Design and manufacturing excellence makes Trane a leader trane air cooled chiller catalogue pdf sheet in the air-cooled chiller marketplace. Air recirculation occurs when discharge air from the condenser fans is recycled back to the condenser coil inlet. Download 414 Trane Chiller PDF manuals. The chiller should be completely open above the fan deck. A simple piping change can alleviate this problem. Trane has designed the scroll compressor to be a leader in reliability. Whether you need 20kW Debris, trash, supplies, etc., should not be allowed to accumulate in the vicinity of the air-cooled chiller. satisfy your specific, individual requirements. © Trane 2020. reducing the environmental impact of buildings by fulfilling our Corporate The evaporator on the Stealth can withstand up to 50 percent water flow reduction as long as this flow is equal to or above the minimum flow rate requirements. The recommended lateral clearances are depicted in the Close-Spacing and Restricted Airflow Engineering Bulletin RLC-PRB037*-EN available on product portal pages or from your local office. Combination Temperature and Humidity Sensors, Indoor air quality Carbon dioxide (CO₂) Sensors. See Close-Spacing and Restricted Airflow Engineering Bulletin RLC-PRB037*-EN for more information. This strategy can be a significant source of energy savings, depending on the application. Trane provides a factory-installed water flow switch monitored by UC800 which protects the chiller from operating in loss of flow conditions. Catalogue Chiller trane RTHE. F.water Cooler Reciprocating Chiller. Doubling the recommended single unit air-cooled chiller clearances will generally prove to be adequate. Therefore, as a guideline, ensure the volume of water in the chilled water loop equals or exceeds two times the evaporator flow rate. Trane part numbers have the format of CCCnnnnn, where CCC is a three character prefix denoting the type of part: i.e. The Trane Tracer system has advanced chilled plant control capabilities designed to provide such operation. To reduce the sound transmitted through electrical conduit, use flexible electrical conduit. h/Btu (in accordance with AHRI 550/590). The Trane air-cooled chiller is uniquely suited to low temperature applications like ice storage because of the ambient relief experienced at night. Another advantage of an ice storage system is its ability to eliminate chiller over sizing. If the equipment must be located in close proximity to a building, it should be placed next to an unoccupied space such as a storage room, mechanical room, etc. Evaporator flow rates below the tabulated values will result in laminar flow causing freeze-up problems, scaling, stratification and poor control. Trane solutions optimize indoor environments with a broad portfolio of energy efficient heating, ventilating and air conditioning systems, building and contracting services, parts support and advanced controls for homes and commercial buildings. Contact us to find out more. Best of all this system still provides a capacity safety factor and redundancy by building it into the ice storage capacity for practically no cost compared to over sized systems. Chiller arrangement than in a parallel arrangement và có mặt hơn 100 quốc.... 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