Capacity Continuous Adjustment Air Cooled Screw Chiller With Chiller Manage System
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Capacity Continuous Adjustment Air Cooled Screw Chiller With Chiller Manage System
The unit adopts a brand new economizer circulation design.
The electronic expansion valve implements precision control,increasing the over-cooling degree of the unit, and greatly improving the cooling capacity and cooling efficiency of the unit.
General Specifications
Environmental Friendly-EKAS is an air cooled screw chiller which use dual screw compressor with R134a refrigerant
High Efficiency-The “Apollo”/“Apollo+” stands for high efficiency/ extremely high efficiency on partial and full load operation , thanks to dual screw compressor , sub-cooling design , M shape condenser ,economizer , shell and tube evaporator ,electronic expansion valve and patent aerofoil aluminum fan .
Capacity Continuous Adjustment -With intelligent controller , EK chiller performs a prompt adjustment according to system load to ensure the precisely chilled water temperature . What’s more , it will unload automatically at extremely high ambient temperature to protect compressor.
10.1” Touch Screen -is directly connected to the microprocessor , providing monitoring history data recording ,safety protection ,and more convenient operation .
Widely Applications -EKAS is the idea solution for commercial building & industrial applications that required high performance ,continuous operation , lower operation and maintenance cost .
BMS (Optional)-EK provide an RS485 standard communication interface , which is more convenient to joint with building management system . Standard protocol includes BacNet ,Modbus and Lonwork .
Chiller Manage System (Optional)- EK provide intelligent CMS for centralized control on several air cooled screw chillers to balance each unit running time ,and perform automatically switchover on a fault unit , ensuring the whole system stable running & energy saving .
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Model |
EKAS280 |
EKAS300 |
EKAS320 |
EKAS340 |
EKAS380 |
EKAS400 |
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|
Cooling capacity |
kW |
1005.7 |
1097.6 |
1168.3 |
1239 |
1367.3 |
1439.1 |
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|
USRT |
286 |
312.1 |
332.2 |
352.3 |
388.8 |
409.2 |
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|
×104 kcal/h |
86.5 |
94.4 |
100.5 |
106.6 |
117.6 |
123.8 |
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Heating capacity |
kW |
957 |
1045.2 |
1111.8 |
1178.5 |
1297.8 |
1360.5 |
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|
USRT |
272.1 |
297.2 |
316.1 |
335.1 |
369 |
386.8 |
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|
×104 kcal/h |
82.3 |
89.9 |
95.6 |
101.3 |
111.6 |
117 |
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Cooling power input |
kW |
291.8 |
310.4 |
331.6 |
352.9 |
387.3 |
404.7 |
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|
Heating power input |
kW |
283.7 |
313.7 |
330.7 |
347.8 |
383.8 |
403.2 |
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|
COP |
3.45 |
3.54 |
3.52 |
3.51 |
3.53 |
3.56 |
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Capacity modulation |
12.5%~100% stepless |
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Startup type |
Y-Δ |
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Power supply |
380V/3~/50Hz |
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Refrigerant |
Type |
|
R134a |
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|
Refrigerant circuits |
2 |
2 |
2 |
2 |
2 |
2 |
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Control stratage |
E-EXV |
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|
Compressor |
type |
|
Semi-hermetic dual screw compressor |
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Qua. |
|
2 |
2 |
2 |
2 |
2 |
2 |
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|
Lubricating oil |
code |
|
EK02 |
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|
charge |
|
25+25 |
25+25 |
25+25 |
25+25 |
25+25 |
25+25 |
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Fan |
type |
|
Axial |
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|
Qua. |
No. |
20 |
24 |
24 |
24 |
28 |
32 |
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|
air flow |
×104m3/h |
40 |
48 |
48 |
48 |
56 |
64 |
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Air side heat exchanger |
type |
|
Coil |
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|
density |
|
16FPI |
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Water side heat exchanger |
type |
|
shell & tube |
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|
cooling flow |
m3/h |
173.0 |
188.8 |
200.9 |
213.1 |
235.2 |
247.5 |
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|
pressure drop |
kPa |
62 |
77 |
77 |
86 |
86 |
64 |
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|
heating flow |
m3/h |
164.6 |
179.8 |
191.2 |
202.7 |
223.2 |
234.0 |
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connection |
inch |
8 |
8 |
8 |
8 |
8 |
|
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|
Rated current |
A |
510 |
557 |
579 |
601 |
678 |
721 |
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Startup current |
A |
660 |
660 |
660 |
749 |
882 |
882 |
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Max.Startup current |
A |
733 |
757 |
824 |
999 |
999 |
1109 |
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|
Dimensions |
length |
mm |
11600 |
12500 |
12500 |
12500 |
14300 |
16100 |
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width |
mm |
2260 |
2260 |
2260 |
2260 |
2260 |
2260 |
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|
height |
mm |
2525 |
2525 |
2525 |
2525 |
2525 |
2525 |
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|
Chiller shipping weight |
kg |
10846 |
11399 |
11449 |
11459 |
12857 |
14201 |
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|
Chiller operating weight |
kg |
11326 |
11879 |
11929 |
11959 |
13357 |
14801 |
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|
Heatpump shipping weight |
kg |
11094 |
11647 |
11697 |
11707 |
13105 |
14449 |
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|
Heatpump operating weight |
kg |
11574 |
12127 |
12177 |
12207 |
13605 |
15049 |
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Standard Accessories:
|
Water Y filter |
Spring vibration isolator |
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Water flow Switch |
Evaporator water side victaulic |
Options (on request)
|
Low-ambient temperature type |
Annual heat pump type |
|
Anti-erosive aluminum fin |
Compressor silencer box |
|
Soft start |
Remote touch screen controller |
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CMS(Chiller Manage System) |
Monitoring software |
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Flange connection |
Gateway for Modbus, Lonworks, and BACnet |
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EC fan motor , Higher ESP fan motor |
Condenser guard grille |
Controller:
|
Partial running information: |
Partial alarm information: |
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Unit running status |
Over/under voltage protection |
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Unit capacity |
Phase sequence protection |
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Compressor running status |
Comp high/low pressure protection |
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Water pump running status |
Comp overload protection |
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E-EXV running status |
Fan motor overload protection |
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Inlet/outlet water temperature |
Oil filter block protection |
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Comp suction/discharge pressure |
High discharge temperature protection |
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Comp suction/discharge temperature |
Anti freeze protection |
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Oil pressure/temperature |
Pressure transducer/Temperature sensor trouble |
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Partial function: |
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Factory/Service/User password |
POST (Power on self test) |
|
7 days timer |
Inlet/outlet water temperature control |
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Outlet water temperature setting |
Unit running auto/manual control |
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Comp delay start |
Comp start time setting |
|
Partial start |
Comp energy management |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.