Water-Cooled Scroll Chiller 50-Ton DamaTajhiz Model DTCHS50

Guide to Selecting and Purchasing the 50-Ton Water-Cooled Scroll Chiller

If you're looking for a high-quality water-cooled scroll chiller with outstanding technical specifications, reliable delivery time, competitive pricing, and professional customer support, you’ve come to the right place.

We hope that by reviewing the following information and contacting the HVAC experts at DamaTajhiz, you’ll enjoy a smooth and satisfying purchasing experience from this dynamic company.

Water-cooled scroll chillers serve as the beating heart of HVAC and industrial cooling systems, supplying chilled water at 7°C. These units operate based on the vapor-compression refrigeration cycle.
In the HVAC industry, water-cooled chillers supply chilled water to the cooling coils in Fan Coil Units and Air Handling Units. Compared to air-cooled chillers, water-cooled chillers generally offer higher energy efficiency.

The 50-Ton Water-Cooled Scroll Chiller – DamaTajhiz Model DTCHS50 – is available with various types of compressors including screw, reciprocating, centrifugal, or scroll, depending on your specific needs and order preferences. All components are sourced from leading global brands.

DamaTajhiz: Thousands of Products for Thousands of Projects (Since 2004)

Technical Specifications and Advantages of the 50-Ton Water-Cooled Chiller 

The technical features and benefits of DamaTajhiz water-cooled scroll chillers—including the 50-ton DTCHS50 model—can be summarized as follows:

• Equipped with oil level switch, vibration isolators, and built-in safety valve
• Compressor motor cooling via refrigerant gas flow through the suction line
• Electric heater included to enhance oil separation and improve compressor performance
• Pressure testing of evaporator and condenser water and refrigerant circuits in accordance with ASME standards at the factory
• Fitted with Low Oil Protection to prevent compressor operation without sufficient lubrication
• Low and high pressure gauges installed for each refrigeration circuit to monitor suction and discharge pressure
• Heavy-duty steel base frame and structure designed for easy transport and installation, with anti-vibration rubber mounts
• Service valves on the chiller help prevent refrigerant loss during maintenance
• Cabinet built with thick galvanized steel sheets coated with electrostatic powder paint (80-micron thickness)
• Available with screw, scroll, reciprocating, or centrifugal compressors, based on project conditions and customer requirements
• Shell-and-tube evaporator and condenser with durable steel casing, seamless copper tubes, and 5-blade aluminum star inserts
• All main control and electrical components supplied by leading European brands such as ALCO, Omron, GMC, Schneider, and Danfoss
• High-quality compressors from Bitzer, Copeland, Danfoss, or Hanbell, with product codes for authenticity and traceability
• Compressor includes automatic oil temperature control, dedicated ports for economizer and liquid injection, phase protection, and discharge check valve
• Includes solenoid valves, expansion valves, manual valves, sight glass, safety valves, replaceable filter driers, and suction filters from brands like GMC, ALCO, Emerson, and Danfoss
• Condenser features a robust, fully sealed body with rust-resistant internal and external surfaces, fully insulated with 19mm high-quality thermal insulation
• Comprehensive safety systems including high/low pressure protection, drier, anti-freeze thermostat, oil return system, circuit breaker, and low oil safeguard
• Uses high-density elastomeric thermal insulation (Aero Flex or equivalent) with 120-micron aluminum foil for evaporator and suction line, and includes anti-freeze heater for the water tank

Optional Features of DamaTajhiz Water-Cooled Scroll Chiller - Model DTCHS

In general, DamaTajhiz water-cooled chillers can be customized with exclusive optional features based on the specific requirements and orders of valued customers. These options distinguish them from other brands of chillers. These options include:

• Sequential compressor startup to extend component lifespan
• Use of compact stainless-steel plate-type evaporator for special conditions
• Electronic Expansion Valve (EEV) for precise chiller capacity control
• Inverter-driven compressor motors to improve chiller COP during partial load
• Advanced monitoring system with programmable touchscreen and BMS connectivity
• Optional hot gas check valves and individual shut-off valves for each compressor to simplify maintenance
• PLC system for precise control in special applications, featuring programmable hourly/weekly operation, monitoring, control, auto-diagnosis, and connectivity with smart management systems, Android, PC, and iOS

Key Features & Main Components of DamaTajhiz 50-Ton Water-Cooled Chiller

DamaTajhiz water-cooled chillers are manufactured using a variety of high-quality components and technical specifications. A brief explanation of each feature is provided below:

1. Main Body:
   • The main body of the 50-ton DTCHS50 water-cooled chiller is made of galvanized steel, featuring a unique and innovative design, manufactured with fully automatic equipment and advanced engineering technology.
   • The structure and chassis are constructed from premium 4mm thick galvanized steel and coated with multiple layers of electrostatic powder paint.
2. Compressor:
   • In general, the compressors used in DamaTajhiz water-cooled chillers (across all capacities) are of the scroll or screw type, based on customer requirements, and are manufactured by reputable companies such as Danfoss, Copeland, or Bitzer. These compressors feature IP54 protection rating, are equipped with crankcase heaters, and support refrigerant gases R22, R134a, and R407.
   • Each compressor comes with a unique product identification code to ensure authenticity and traceability. Upon request and at the time of contract signing, documentation can be provided to verify the originality of the compressor (from the original manufacturer) and distinguish it from counterfeit products.
   • Note: Based on customer requirements and market conditions, it is possible to change the brand of the compressor and the auxiliary components of the DamaTajhiz water-cooled chiller.
3. Control Components and Refrigeration Instrumentation:
   • The expansion valve (Danfoss original) is an adjustable thermostatic valve that reduces the pressure of the refrigerant liquid before it enters the evaporator, preparing it for evaporation at the evaporator temperature.
   • The 50-ton DamaTajhiz water-cooled chiller (Model DTCHS50) is equipped with pressure gauges for monitoring discharge and suction pressures, as well as an anti-freeze sensor, flow switch, and thermostat to control the evaporator water temperature.
   • Each compressor is equipped with an individual oil pressure control system. If the oil pressure drops below the permissible limit compared to the compressor chamber pressure, it will send a shutdown signal.
   • The solenoid valve, controlled by an electric coil, opens when energized and closes the refrigerant liquid flow path when de-energized.
   • The sight glass indicates the amount of refrigerant gas and moisture content in the liquid line.
   • The anti-freeze sensor is installed to prevent water freezing in the evaporator.
   • The DamaTajhiz water-cooled chiller is equipped with a high-quality dryer filter that improves compressor performance by absorbing moisture and impurities from the refrigerant entering the compressor.
4. Evaporator:
   • The evaporator of DamaTajhiz water-cooled chillers in various capacities is of the SHELL & TUBE type, with a durable steel shell. Low-pressure refrigerant flows through the copper tubes, while chilled water circulates within the shell side.
   • The internal tubes of the evaporator are made of high-thickness copper and feature 5-blade aluminum star fins to enhance the heat transfer coefficient. The tube sheets are made from ST52 steel, and the baffles are manufactured from 5 to 7 mm thick Teflon, tested at 400 Psi in compliance with ASTM359 / ASME SB359 standards.
   • To minimize heat loss, the outer surface of the evaporator shell and the suction line pipes are fully insulated with premium 23 mm thick elastomeric insulation covered with aluminum foil.
5. Condenser:
   • The condenser of the 50-ton water-cooled DamaTajhiz chiller is manufactured and integrated using advanced technology and fully automated machinery.
   • The condenser features seamless copper tubes that offer maximum heat transfer and high efficiency.
   • The main condenser shell is made of highly durable steel, fully insulated with 19 mm thick polyethylene insulation at the final production stage.
   • After assembly, the condenser undergoes a hydrostatic pressure test at 10 bar, as well as an air leakage test.
6. Electrical Panel and Components:
   • The control system and electrical components inside the panel are sourced from top global brands, including Hyundai, Carel, Schneider, and Siemens.
   • The system can be connected to a Building Management System (BMS), enabling automatic adjustments based on environmental conditions when needed.
   • A phase protection device is included to cut off power in case of phase imbalance caused by motor feedback or two-phase operation.
   • An automatic switch is provided to disconnect the compressor if excessive current is detected. If any compressor draws more current than the permitted limit, the controller intervenes and disconnects it from the circuit to prevent damage and costly repairs.
   • The system is equipped with a main ON/OFF switch, with all incoming and outgoing wires terminated using crimped lugs. The panel cabinet is made of appropriately thick steel sheet with an electrostatic powder-coated finish.

   DamaTajhiz؛ Thousands of Products for Thousands of Projects (Since 2004)

   Important Tips for Choosing and Buying DamaTajhiz Water-Cooled Screw Chillers

   • The capacities and specifications listed in the technical data table for DamaTajhiz water-cooled screw chillers are based on producing chilled water at 7°C. For lower temperature requirements, please contact DamaTajhiz engineering department.
   • DamaTajhiz manufactures various types of water-cooled screw chillers using refrigerants R22, R134, and R407 according to project conditions and customer needs.
   • Production of DamaTajhiz water-cooled screw chillers with centrifugal, screw, and piston compressors in higher capacities is available for special conditions and applications.
   • The compressors used in all capacities of DamaTajhiz water-cooled screw chillers are from reputable global brands such as Copeland, Bitzer, and Danfoss.
   • Technical specifications and equipment of DamaTajhiz water-cooled chillers can be customized based on customer orders (e.g., installation of plate heat exchangers for condenser and evaporator) with different pricing.
   • When ordering a water-cooled screw chiller, be sure to know the exact device dimensions to ensure it can pass through the mechanical room door and be installed on the foundation.
   • At the time of ordering, obtain the exact weight of the device from DamaTajhiz sales experts to arrange appropriate machinery and cranes for transportation and unloading.
   • Considering the high costs of purchasing, installing, and operating cooling and HVAC systems in a building or complex— including water-cooled screw chillers— it is recommended to consult DamaTajhiz’s specialized design and engineering experts for proper chiller capacity selection, in addition to project engineer recommendations.

   Installation and Piping Considerations for DamaTajhiz Water-Cooled Screw Chillers

   • Use softened water for filling the cooling tower water circuit.
   • Allow sufficient space around the chiller in the mechanical room for maintenance and repairs, including acid cleaning or pipe replacement.

   Ordering and Warranty of DamaTajhiz 50-Ton Water-Cooled Screw Chiller Model DTCHS50

   • The DamaTajhiz 50-ton water-cooled screw chiller model DTCHS50 comes with a 15-month golden warranty and 10 years of after-sales service.
   • At the DamaTajhiz specialized reference center, guaranteed technical information and prices for purchasing water-cooled screw chillers with golden warranty are provided to ensure you enjoy a smart and optimal buying experience.
   • When purchasing a chiller, consider the cooling capacity and installation space carefully, as chillers are produced with different cooling and airflow capacities. Make sure to measure the area and understand its use before choosing the right model and capacity at the best price.
   • For warranty details and technical specifications of various DamaTajhiz water-cooled screw chillers, click the "Technical Specifications" tab on each product page.