High Efficient Screw Chiller Inverter Commercial Water Cooled Chiller

• Type: Water-Cooled
• Cooling Method: Water-cooled
• Unit Structure: Integral
• Selected Voltage: 220~480V-50Hz/60Hz-3pH
• Compressor Number: 1 or 2
• Noise Level: Low
• Model NO.: ESGW series
• Application Fields: Apartments
• Application Machine: Cooling and Heating
• Certification: CE
• Condition: New
• Compressor: Hanbell
• Evaporator: Shell and Tube
• Condenser: Shell and Tube
• Hot Water: Heat Recovery Optional
• Starter: Wye-Delta Starter
• Controller: Touch Screen Microcomputer Control
• Chiller Color: White
• Expansion Valve: Emerson
• Capacity Control: 0, 50, 75, 100 for Single Compressor
• Refrigerant: R22, R407c, R134A
• Electrical Components: FUJI
• Sight Glass: Emerson
• Service: OEM, ODM
• Transport Package: Wooden Pallet
• Specification: Chilled water outlet temp.: 5~20C
• Trademark: ESACIR
• Origin: Shenzhen
• HS Code: 8418692090
• Production Capacity: 1000 Units Per Year

Product Description

High Efficient Screw Chiller Inverter Commercial Water Cooled Chiller 

1. Eurostars water cooled commercial screw chiller main components
(1)Screw compressor
Screw compressors are one version of positive displacement compression. As the screw rotors turn, the gas is compressed. Screw compressors have one or more rotors to accomplish the compression. Screw compressors feature simple and robust construction by elimination of some components such as pistons, piston rings, valve plates, oil pumps which are found in reciprocating compressors. Without these components,screw compressors run with low noise level, minimized vibration, high reliability and durability.
(2)Evaporator
*For smaller capacity chillers, the brazed plate evaporator is often used. The plates are stacked so they form a multi-layered design for two independent paths of fluid to travel. Each layer or path is linked to an inlet and outlet via a manifold at either end. The design of a brazed plate evaporator maximizes heat transfer at an attractive first cost for smaller chiller designs. The waterside of a brazed plate evaporator must be kept free of sediment and debris, strainers are required.
*Shell ad tube evaporator is designed to be the refrigerant flows through the tubes and the water flows around the tubes inside the shell section. As heat is transferred to the colder refrigerant from the warmer water, the refrigerant in the tubes boils while the water is cooled. Baffles within while the shell direct the water flow path over the tubes to create turbulence, resulting in improved heat transfer.
(3)Condenser
*Water cooled chillers either use brazed plate or shell and tube heat exchangers for the condenser. As in the condenser, the refrigerant is on the shell side, and the fluid is on the tube side, the fluid is generally fresh water, used with an open cooling tower.
*A typical condenser has a refrigerant hot gas inlet pipe and a liquid outlet pipe, the inlet pipe enters the top of the condenser where hot discharge gas from the compressor impacts a refrigerant distribution baffle.
*Other condenser water sources include lakes, rivers, or cooling ponds, in coastal areas, seawater may also be used; however, appropriate materials, like titanium, should be used to minimize tube and tube sheet corrosion.
(4)Expansion valve
*To maintain the necessary pressure difference between the evaporator and condenser, some form of metering device must be used. Expansion valves use saturated suction temperature to regulate the amount of refrigerant that passed through them, and are typically controlled electronically.
*Adopt superior quality famous exterior balanced thermal expansion valve, which is high reliability and adjustability, can realize precise refrigerant and temperature control to ensure operating in precise and reliable status.
(5)Relief valves
Refrigerant relief valves on either the condenser, the evaporator, or both, are provided as safety devices in the event of overpressurization. Overpressuriztion might occur during a fire or if hot water were run through the chiller tubes.
(6)Intellectualized controller
*All chillers need to be properly controlled for safe and efficient operation.  
*Adopt micro computer touch screen control, can operate via centralized manage system; whole system can realize remote operation.
*The system can monitor the water temperature,capacity status while running.The water temperature can be controlled according to the water outlet temperature.Trouble shooting code may display on the touch screen automatically when the system is abnormal.
*PLC controller is optional.
*RS485 interface reserved



2. VFD for Eurostars Chiller
Generally, as chillers spend most of their operating time at only 40 to 70 percent load, installing a VFD on the chiller and/or auxiliary equipment in hot, humid climates can produce energy savings. It's important to note that when there are multiple chillers, savings may be less with the amount of decrease depending on the control strategy employed. VFDs aren't recommended for chillers that operate predominantly at full load because they
can decrease a little chiller full-load efficiency.

Application considerations:
The cost-effectiveness of a VFD for a water-cooled chiller is affected by several factors. Applications where VFDs are more likely to be cost-effective include those with the following characteristics:
(1)Low chiller load factors.
In applications where chillers spend a lot of time at low loads, VFDs will save the most energy and have the best chance of a quick payback.
(2)Long cooling hours.
Facilities that long more annual cooling hours are able to recoup the cost of cooling system improvements more quickly than those with limited or seasonal operating hours, such as a school.
(3)Presence of multiple chillers.
Many facilities have two or more chillers that can be staged as load changes. This can create an ideal opportunity to install one or more VFD chillers to improve capacity control. Using a VFD on only one chiller allows you to more fully load the non-VFD chillers and use the VFD chiller to make up the difference in needed capacity. Using a VFD on all chillers in a plant allows you to balance run hours on all the equipment while still reaping the energy-efficiency benefits of VFDs.
(4)Presence of a building automation system.
Because VFD chiller plants can be operated in different ways, a building automation system can help building staff determine whether operating practices are helping or hindering overall plant efficiency.
 

3.Eurostars water cooled screw chiller construction diagram 

 

(1)Screw compressor	(2)Motor wiring box	(3)Electrical control box
(4)Control board	(5)Discharge stop valve	(6)Oil indicator
(7)Chilled water outlet	(8)Suction pipe	(9)Sight glass
(10)Evaporator	(11)Condenser	(12)Dry filter
(13)Angle valve	(14)Expansion valve

With heat recovery:

 

(1)Discharge stop valve	(2)Electrical control box	(3)Control board
(4)Heat recovery	(5)Screw compressor	(6)Suction pipe
(7)Expansion valve	(8)Sight glass	(9)Dry filter
(10)Evaporator	(11)Condenser	(12)Chilled water inlet

4. Eurostars central air conditioner system solution 


5. Eurostars water cooled commercial screw chiller brief technical data 
Please ask salesman for detailed complete data or visit our website:
eurostarschiller.en.made-in-china.com
eurostarschiller.en.made-in-china.com

Water Cooled Chiller Unit(R407C)
Model  ESGW   ~			031SON	041SON	055SON	067SON	075SON	089SON	101SON	108SON	121SON	141SON
Rated Cooling Capacity		KW	96	129	166	227	248	293	339	400	473	500
		USRT	27.3	36.7	47.2	64.6	70.5	83.3	96.4	113.8	134.5	142.2
		×1000kcal/h	82.6	110.9	142.8	195.2	213.3	252.0	291.5	344.0	406.8	430.0

Water Cooled Chiller Unit(R407C)
Model  ESGW   ~			162SON	175SON	183SON	208SON	230SON	234SON	278SON	297SON	392SON	443SON
Rated Cooling Capacity		KW	553	589	616	717	787	845	943	1074	1394	1587
		USRT	157.3	167.5	175.2	203.9	223.8	240.3	268.2	305.5	396.5	451.4
		×1000kcal/h	475.6	506.5	529.8	616.6	676.8	726.7	811.0	923.6	1198.8	1364.8

Water Cooled Chiller Unit(R407C)
Model  ESGW   ~			062DON	082DON	110DON	134DON	150DON	178DON	202DON	242DON	282DON	304DON
Rated Cooling Capacity		KW	193	257	332	454	495	587	678	800	946	999
		USRT	54.9	73.1	94.4	129.1	140.8	167.0	192.8	227.5	269.1	284.1
		×1000kcal/h	166.0	221.0	285.5	390.4	425.7	504.8	583.1	688.0	813.6	859.1

Water Cooled Chiller Unit(R407C)
Model  ESGW   ~			324DON	350DON	366DON	416DON	460DON	468DON	556DON	594DON	784DON	886DON
Rated Cooling Capacity		KW	1105	1178	1232	1433	1574	1689	1885	2148	2788	3174
		USRT	314.3	335.0	350.4	407.6	447.7	480.4	536.1	610.9	792.9	902.7
		×1000kcal/h	950.3	1013.1	1059.5	1232.4	1353.6	1452.5	1621.1	1847.3	2397.7	2729.6

Remarks:
(1)Rated Cooling Capacity Based on: Chilled water in/outlet temp. 12ºC/7ºC, Cooling water in/outlet temp. 30°C/35°C, Fouling factor: 0.088 sqm°C/KW.
(2) Chilled Water Range: 5~20ºC; Cooling Water Range: 20~40ºC;

6.Eurostars water cooled chiller series

Water cooled screw chiller(with dual compressors,dual condenser)
Water cooled screw chiller(with single compressor, single condenser)
Water cooled screw chiller(with flooded evaporator)
Water cooled screw chiller with heat recovery
Water cooled heat pump chiller
Water cooled heat pump chiller with heat recovery
Water cooled flooded screw chiller with heat recovery
Water cooled flooded heat pump chiller
Water cooled centrifugal water chiller

7.Six good reasons to use Eurostars chillers products
(1)Engineering
Save hours of engineering and fabrication time. From Eurostars you can get the right design, prudently engineered with quality components, and flexibility to suit your application.
(2)Maintenance
Eurostars designs and built for low maintenance. Save on the routine maintenance of competitive systems and reduce your chance of shutdowns. Your customized maintenance manual is clear and concise.
(3)Purchasing
You'll purchase a complete skid-mounted system customized by experts. It's headache-free one-stop purchasing.
(4)Support
Experts are available to answer your questions toll-free. We can offer advice on system flow, pressure and heat transfer requirements, equipment layouts, piping materials, and expanding a system to meet increased capacity, as well as trouble-shooting any existing installation.
(5)Installation
All necessary valves, controls and gauges can be pre-installed, so in-plant piping is streamlined. Running field wiring from the power supply and to remote fan motors typically completes the installation. A thorough, yet easy-to-read installation, operation and maintenance manual is prepared for each order.
(6)Price
Eurostars chillers are quality produced at an affordable price that can save you money for years to come. A real winner in terms of return on investment.

8. Why choose Eurostars Company?
(1)The Proof of Quality: 
Now we have customers in different countries and places, such as Mexico, Australia, New Zealand, Singapore,
Argentina, Ukraine, Uzbekistan, Middle- East, Africa…
(2)The Guarantee of Quality: 
Reasonable design, Professional technicians, Stable production workers, Full-scale Equipments, 
Strict QA & QC system…
(3)Custom Made Design:
We supply our design drawing according to customer practical situation.
(4) Technique Support:  
We supply our wiring diagram, installation instructions and maintenance manual, make more easier for installation.
(5) International Trade Operation: 
We have concentrated on international trade of chillers for any years, accumulated various experience 
from different customers of different countries. So we can update our operation in time according to our customers and new rules. It is helpful to clear customs and save cost and time for our customers.






9. Our factory view
Modern new process and assemble line, including copper tube straighten machine, aluminum fin punching machine, three dimensional copper tube bending machine, tube expander machine, sheet metal laser cutting machine, numerical control punching machine, CNC bending machine, chiller, fan coil unit and AHU assemble line,. etc..


10. Eurostars water cooled chiller package and delivery
Our standard package is plastic film with wooden pallet for safe delivery and easy to load/unload.


11. Eurostars water cooled chiller projects
We exported chillers to Ukraine, New Zealand, Guatelmala, Peru, Chile, Norway, Serbia, Romania, Greece, France, South Africa, Australia, Uzbekistan, Sri Lanka, India, Saudi Arabia, Iran, Mexico, Argentina, etc..