China Air Cooled Screw Chiller Factory - High Efficiency Cooling Solutions from Reliable Suppliers
Refrigerator Structure Diagram
Internal Structure Diagram Of Compressor
Microprocessor Control System
Design Advantages
Air-cooled screw chillers, cooling towers without having to install, easier to use, suitable for a wide range of units, suitable for plastic, electroplating, electronics, chemical, medical, cleaning, food, metallurgical and other industries to provide engineering support and cooling systems, as well as water systems to provide high performance for the shopping malls, office buildings, hotels, hospitals, residential villas and other places, for customers to create a quiet and comfortable living and working environment.
Features
- Efficient semi-enclosed twin-screw compressor, the unit running smoothly.
- Suction cooling the motor running low temperature, long motor life.
- Using high-quality bearings, bearing life of at least 40,000 hours.
- Built-in oil separator, smaller, better.
- You can secure the implementation phase or energy stepless adjustable from 0% to 100% range, the maximum saving power resources.
- Using high-performance evaporator shell and tube heat exchanger (optional stainless steel plate heat exchanger), built-in high efficiency heat exchanger tube teeth, reasonable design, heat transfer effect is good.
- Suitable for R22, R134a, R404A refrigerant other.
- Fewer moving parts. Low failure rate.
- Can be equipped with devices to further improve the economy compressor cooling capacity and efficiency.
- Can be equipped with spray cooling means to extend the application range of the compressor.
- Can be equipped with an oil cooling means to increase the efficiency of the compressor and compressor applications.
Easy to Use, Control Features and More
- Power control procedures can be achieved, energy regulation program, stop control procedures, downtime, fault diagnosis, operation time statistics, operating status display and reboot recovery procedures.
- Has full control, protection functions together, simple interface and operation of the whole Chinese characteristics.
- Computer LCD touch screen controller; can reflect the health unit, the operation more convenient.
- Can be connected to the building control system (with optional control module) or remote control.
- With the chilled water pumps, cooling water pumps, cooling towers chain control function.
- Host highly automated, no special setting operation and management personnel.
Condenser
The latest high-efficiency external threaded copper tube production in Kobe, Japan, with large heat dissipation and compact size. Using the latest CAD/CAM design and processing technology, combined with CNC machining center production, the structure is compact and highly reliable. Beautiful appearance, efficient and energy-saving.
Air-cooled Condenser
The heat dissipation fins are punched by high-speed punching machines, and the flipping quality is reliable. Secondary flanging ensures closer contact between the copper tube and fins, resulting in high heat transfer efficiency. The use of fully imported copper pipes and fully automatic elbow welding greatly enhances air tightness and prevents refrigerant leakage. Especially suitable for use in areas with scarce water resources or high water hardness.
Microprocessor Control System
Industrial grade PLC unit centralized control, combined with compression mechanism adjustable system, can timely and accurately control the matching of unit cooling capacity and cooling load, ensuring the unit operates at the best efficiency and reducing operating costs.
Internally integrated with multiple safety protection and treatment functions such as water cut-off, low temperature, high and low pressure, antifreeze, phase loss, delayed start, reverse phase, overload, motor overheating, oil pressure difference, etc.
Full Chinese operation; Interface, menu style prompts, allowing for arbitrary setting of unit operating status, and a home appliance based operating environment.
Performance Testing of Refrigeration Unit
LS-ASCS Single Head Air Cooled Screw Chiller Parameter Table
Type |
LS-40ASCS |
LS-50ASCS |
LS-60ASCS |
LS-70ASCS |
LS-80ASCS |
LS-100ASCS |
LS-110ASCS |
LS-120ASCS |
LS-140ASCS |
LS-160ASCS |
LS-180ASCS |
LS-200ASCS |
LS-220ASCS |
|
Refrigerating capacity |
Kcal/h |
68800 |
86000 |
94600 |
122980 |
135020 |
164260 |
180600 |
212420 |
245100 |
266600 |
292400 |
348300 |
369800 |
KW |
80 |
100 |
110 |
143 |
157 |
191 |
210 |
247 |
285 |
310 |
340 |
405 |
430 |
|
Input power(KW) |
32.5 |
39 |
43.6 |
54.7 |
59.7 |
73.6 |
79.6 |
88.2 |
101.2 |
112.8 |
123.8 |
145 |
155 |
|
Maximum current(A) |
57 |
68 |
75 |
95 |
103 |
125 |
135 |
151 |
173 |
191 |
211 |
246 |
263 |
|
Power |
3PH~380V/415V~50HZ/60HZ(3PH~200V/220V 50HZ/60HZ) |
|||||||||||||
Refrigerant |
Name |
R22 (R134a/R407C/R404A) |
||||||||||||
Charge Amount(kg) |
21 |
24 |
28 |
35 |
42 |
49 |
56 |
63 |
70 |
77 |
84 |
98 |
112 |
|
Control |
External balance temperature thermal expansion valve |
|||||||||||||
Compressor |
Type |
Semi-hermetic screw |
||||||||||||
Power(KW) |
30 |
37 |
40 |
50 |
55 |
67 |
73 |
82 |
95 |
104 |
115 |
134 |
142 |
|
Start |
Y-△ |
|||||||||||||
Energy regulation range(%) |
0-33-66-100 |
0-25-50-75-100 |
||||||||||||
Evaporator |
Type |
Dry shell and tube ( Stainless steel plate evaporator) |
||||||||||||
frozen water(m³/h) |
13.8 |
17 |
18.9 |
24.6 |
27 |
32.8 |
36.1 |
42.5 |
49 |
53.3 |
58.4 |
70 |
74 |
|
Water resistance(Kpa) |
32 |
32 |
32 |
35 |
38 |
42 |
42 |
45 |
43 |
43 |
43 |
41 |
43 |
|
Diameter(inch) |
3” |
3” |
3” |
3” |
4” |
4” |
4” |
4” |
4” |
5” |
5” |
6” |
6” |
|
Condenser |
Type |
Efficient air-cooled aluminum thread brass sleeve |
||||||||||||
Fans |
Type |
Low wind noise external rotor fan or aluminum axial fan |
||||||||||||
Power(kw) |
0.42×6 |
0.6×6 |
0.6×6 |
0.78×6 |
0.78×6 |
1.1×6 |
1.1×6 |
0.78×8 |
0.78×8 |
1.1×8 |
1.1×8 |
1.1×10 |
1.1×12 |
|
Airflow(m³/h) |
30000 |
35000 |
40000 |
50000 |
60000 |
70000 |
80000 |
90000 |
100000 |
110000 |
116000 |
145000 |
165000 |
|
Security |
Compressor motor overheating protection, overload protection device unit, high and low pressure protection device, frost protection devices, power reverse phase/phase protection, exhaust temperature, over-temperature protection, flow switches |
|||||||||||||
LS-ASCS Double Head Air Cooled Screw Chiller Parameter Table
Type |
LS-100ASCD |
LS-120ASCD |
LS-140ASCD |
LS-160ASCD |
LS-200ASCD |
LS-220ASCD |
LS-240ASCD |
LS-280ASCD |
LS-300ASCD |
LS-340ASCD |
LS-380ASCD |
LS-860ASCD |
|
Refrigerating capacity |
Kcal/h |
137600 |
189200 |
245960 |
270040 |
328520 |
361200 |
424840 |
490200 |
433200 |
584800 |
696600 |
739600 |
KW |
160 |
220 |
286 |
314 |
382 |
420 |
494 |
570 |
620 |
680 |
810 |
860 |
|
Input power(KW) |
64.7 |
86.6 |
106.2 |
118.8 |
145 |
159.2 |
177.2 |
207.6 |
225.6 |
247.6 |
290 |
310.4 |
|
Maximum current(A) |
114 |
149 |
185 |
205 |
250 |
274 |
308 |
358 |
388 |
428 |
500 |
533 |
|
Power |
3PH~380V/415V~50HZ/60HZ(3PH~200V/220V 50HZ/60HZ) |
||||||||||||
Refrigerant |
Name |
R22 (R134a/R407C/R404A) |
|||||||||||
Charge Amount(kg) |
21×2 |
28×2 |
35×2 |
42×2 |
49×2 |
56×2 |
63×2 |
70×2 |
77×2 |
84×2 |
98×2 |
112×2 |
|
Control |
External balance temperature thermal expansion valve |
||||||||||||
Compressor |
Type |
Semi-hermetic screw |
|||||||||||
Power(KW) |
30×2 |
40×2 |
50×2 |
55×2 |
67×2 |
73×2 |
82×2 |
95×2 |
104×2 |
115×2 |
134×2 |
142×2 |
|
Start |
Y-△ |
||||||||||||
Energy regulation range(%) |
0-33-66-100 |
0-25-50-75-100 |
|||||||||||
Evaporator |
Type |
Dry shell and tube ( Stainless steel plate evaporator) |
|||||||||||
frozen water(m³/h) |
27.5 |
37.8 |
49.1 |
54 |
65.7 |
72.2 |
85 |
98 |
106.6 |
117 |
139.3 |
147.9 |
|
Water resistance(Kpa) |
32 |
32 |
35 |
38 |
42 |
42 |
45 |
43 |
43 |
43 |
41 |
43 |
|
Diameter(inch) |
4” |
4” |
4” |
5” |
6” |
6” |
6” |
6” |
8” |
8” |
8” |
10” |
|
Condenser |
Type |
Efficient air-cooled aluminum thread brass sleeve |
|||||||||||
Fans |
Type |
Low wind noise external rotor fan or aluminum axial fan |
|||||||||||
Power(kw) |
0.78×5 |
1.1×6 |
0.78×8 |
1.1×8 |
1.1×10 |
1.1×12 |
1.1×12 |
1.1×16 |
1.1×16 |
1.1×16 |
1.1×20 |
1.1×24 |
|
Airflow(m³/h) |
60000 |
80000 |
100000 |
116000 |
145000 |
165000 |
180000 |
205000 |
225000 |
242000 |
285000 |
325000 |
|
Security |
Compressor motor overheating protection, overload protection device unit, high and low pressure protection device, frost protection devices, power reverse phase/phase protection, exhaust temperature, over-temperature protection, flow switches |
||||||||||||
1. Cooling capacity is based on the chilled water inlet temperature of 12°C, outlet temperature 7°C; cooling water inlet temperature 30° C, 35°C outlet temperature is calculated.
2. Chilled water temperature range: 5°C to 30°C; chilled water out of the water temperature: 3°C to 8°C; cooling water temperature range: 18° C to 30° C;
Cooling water temperature: 18°C to 30°C; cooling water inlet and outlet water temperature difference: 3.5°C to 10°C. The above can be customized according to customer requirements to produce.
Specifications Dimensions above are subject to change without notice.
Frequently Asked Questions (FAQ)
Do these screw chillers require the installation of cooling towers?
No, these air-cooled screw chillers do not require cooling towers to be installed, making them much easier to set up and use across a wide range of industrial applications.
What are the key advantages of the semi-enclosed twin-screw compressor?
The compressor features highly efficient operation, low motor temperatures due to suction cooling, high-quality bearings with a minimum lifetime of 40,000 hours, and a compact built-in oil separator.
How is the energy regulation managed in the chiller?
The chillers feature stepless energy regulation adjustable from 0% to 100%, allowing for precise capacity matching and maximum power saving resources.
What safety protections are integrated into the microprocessor control system?
It integrates comprehensive safety protections including water cut-off, low temperature, high/low pressure, antifreeze, phase loss, delayed start, reverse phase, overload, motor overheating, and oil pressure difference protection.
Are these chillers suitable for regions with scarce water resources?
Yes, the air-cooled condenser design is highly efficient and particularly suitable for environments with scarce water resources or high water hardness, as it does not rely on external cooling water systems.
Can the chilled water and cooling water specifications be customized?
Yes, while standard cooling capacity is calculated on standard parameters (e.g., 12°C inlet / 7°C outlet for chilled water), systems can be fully customized to meet specific customer requirements.