High Quality Energy Saving Manufacturers Modular Air Cooled Scroll Compressor Chiller

The 20STB Series Air-cooled Scroll Chiller is manufactured by adopting a combination of famous brand compressors and electronic control components, and is equipped with high-efficiency fin condenser and shell and tube evaporator.
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High Quality Energy Saving Manufacturers Modular Air Cooled Scroll Compressor Chiller

The 20STB Series Air-cooled Scroll Chille is controlled by microcomputer and equipped with various protection functions, which can accurately control the operating conditions with high reliability. It is designed for comfortable air conditioning, suitable for commercial buildings such as hotels, shopping malls, office buildings etc. Modular combinations can be formed according to customer needs. Cooling capacity range: 25kW-276kW


air cooled scroll chiller


Refrigerant: R134a        Power supply: 380V-3Ph-50Hz


Model

Nominal cooling

capacity

KW

Compressor

power KW

Nominal heating capacity

Capacity control %

Evaporator

Condensor

Running roise dB(A)

Shipping wight KG

heating capacity

Compressor

power

Inlet pipediameter in

Water pressure drop Kp

Cooling water flow

pressure m3/h

Hot water flow

m3/h

Type

Air volume

m3/h

Power KW

20STB-10AHS4

17


6

18

6

0

100


1-1/2’’

23

3

3

Copper

Tube with

Corrugated

Alumimun

fins

14.5

1.2*1

65

420

20STB-12.5AHS4

21

7

22

7

2’’

28

4

4

14.5

1.2*1

66

480

20STB-15AHS4

26

8

27

8

2’’

30

4

5

20

2.0*1

67

630

20STB-20AHS4

35

11

37

11

0

50

100

2’’

28

6

6

29

1.2*2

67

780

20STB-25AHS4

42

14

82

44

2’’

28

7

8

29

1.2*2

68

830

20STB-30AHS4

52

16

55

16

2-1/2’’

32

9

9

40

2.0*2

69

1080

20STB-40AHS4

63

20

66

20

0

33

66

100

2-1/2’’’

32

11

11

43.5

1.2*3

70

1250

20STB-45AHS4

78

25

82

24

2-1/2’’

31

13

14

60

2.0*3

70

1500

1. Nominal cooling capacity: Evaporator water temperature inlet/outlet 12℃/7℃, condenser water temperature 
inlet/outlet 30℃/35℃; fouling coefficient 0.0088 ㎡•℃/kW; 
2. Chilled water temperature range: 5℃~20℃; 
3. Cooling water temperature range: 15℃~40℃; 
4. Specifications and dimensions are subject to change due to product improvement without prior notice. 


Main features of H.Stars air cooled scroll compressor chiller unit:

1. Main part of Fin Type Heat Exchanger 
It adopts the hydrophilic aluminum foil to reduce the adhesion of water on the aluminum foil and greatly improve the heat exchange efficiency. The aluminum fins are packed in the copper and features uniform wind speed. With reasonable array copper pipes, it is installed in "V"-shape to improve heat exchange efficiency and reduce fan noise. The copper tube and aluminum fin are mechanically connected through expansion with high performance and stable heat exchange. It is independently designed and manufactured with strict quality control. Configuring according to the place of use and process, it ensures that the heat transfer coefficient meets the design requirements. 

Fin Type Heat Exchanger

2. Main part of Compressor 
The unit adopts famous brand compressor with middle bearing cap to achieve high energy efficiency and low sound level. The unit runs quieter and more efficient, with the scroll design of "contact-free and wear-free", it can reduce friction. 



Main part of Compressor


3. Main part of Shell and Tube Heat Exchanger 
The copper tube of the evaporator adopts 1.1mm thick copper heat exchange tube, which ensures that all products meet the high requirements of high efficiency, energy saving, safety, strong antifouling ability and durability. According to the customer's use conditions and water quality factors, different materials of heat exchange tubes can be selected, ensuring the high efficiency and energy saving and service life of the unit. It is independently designed and manufactured with strict quality control. Configuring according to the place of use and process, it ensures that the heat transfer coefficient meets the design requirements. 


Shell and Tube Heat Exchanger


4. Main part of Fan 
It adopts special low energy consumption motor patented fan nozzle to improve the air mobility and reduce the noise. Motor waterproof and dustproof grade: IP54, insulation grade: F. 


Fan for scroll chiller


5. Main part of Controller 
The controller adopts the highly integrated button-type human-machine interface control center, which greatly improves the anti-interference ability of the system. The product adopts plastic shell, which is easy to install. The front and rear panels exchange data through 485 communication, and the entire system can be integrated or separated. Siemens PLC controller can also be selected to realize Mod Bus RTU, TCP or S7 communication.

modular air cooled chiller controller



Advantages:

High efficiency

Adopts spray type evaporator, energy consumption reduces 15% to 25% compare to dry type.

Adopts two stage screw compressor, high efficiency heat exchanger and mechanical throttling device, optimize system design, china energy label class can be 1. at the same time, its also tested by national lab, assure its performance comply to the national standard.


Operation reliable

1. 7 kinds protection devices are installed, assure operation properly.

2. Compressors in parallel design, and installed H.Stars patent combined type throttling device.

3. All chillers will be tested by national test laboratory before delivery, insure unit performance comply design standard.


Intelligent management

1. Option for microcontroller or PLC, to satisfy difference customer.

2. Chiller adopted microcomputer with touch screen control system, provides the simplest and complete operation interface, timely feedbacks all maintenance information

3. Compatible BMS terminal control system, customer can monitor unit operating status anytime.

4. The heat pump has designed with 7 safety protection to ensure the unit running normally. Available in single and dual circuit designs to meet different customer requests. In case one of the compressors in dual compressor system fails, the other compressor can still be running to minimize the whole system shutdown risk from losses. Each equipment will be 100% tested by safety inspection system before shipping to ensure the chiller Performance in accordance with national standards.

5. With built-in highly efficient tube-in-shell heat exchanger and water pump, which ensures not only high efficiency performance of the system but also easy installation work. Compact design, more easy for installation, less space taken.


Easy installation and maintenance

Refrigerant and compressor lubrication oil are charged before delivery, unit only needs to connect inlet/outlet water and electricity in site before start-up.

Control interface displays error directly, provide fast system trouble-shooting.

Multiple refrigerant option, satisfy different customer Chiller provides R22,R134a and other environmental friendly refrigerant according to according to customer requirements.


scroll compressor chiller

contact experts
Contact Person: Ms May Chow Mobile/WhatsApp: +86 18665672648 Tel: +86-20-62266755 Ext. 886 Fax: +86-20-82266081 Email: maychow@hstars.com.cn
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