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Energy Saving Central Air Conditioning Units (MPSA-590.2C)
**Brief Description**
The MPSA series Water Cooled Screw Type Water Chiller Unit is the latest developed product which has a wide cooling capacity range from 100.1KW to 3460.4KW. This series unit adopts: 5:7 Asymmetric Semi-closed Screw Compressor, High-efficiency Shell & Tube Dry Type Evaporator, High-efficiency Shell & Tube Type Condenser, etc. By means of decades of manufacturing experience, we make the whole chiller unit with compact appearance, reasonable layout and convenient for using & maintenance etc. characteristics.
The cooling medium for this series chiller unit could be water, glycol solution or salt solution, supply chilled water through refrigerating cycle for air-conditioning or other industrial equipments.
**Features / Functions / Safety Protections**
**FEATURES**
- Adopt the well-known brand compressors
- Control mode: PLC Full Automatic Control
- Copper tube is welded with oxygen free method
- 5:6 Asymmetric Semi-closed Screw Compressor
- SUS integrated pipelines for less pipe resistance
- Multi-steps energy regulation or stepless regulation
- System pressure & Functional test before shipping
- Highly efficient evaporator and condenser (30% energy saving)
- Electrical devices supplied from OMRON, C8, LG, SCHNEIDER
**OPTIONAL FUNCTIONS**
- Special brine evaporator
- RS485 remote control function
- Total heat recovery or part heat recovery
- Customizable painting colour or OEM&ODM
- Complete refrigeration system scheme design
- Explosion-proof electric cabinet or components
- Customizable power supply and cooling capacity
- Different refrigerants are available, R22, R134a, R407C etc
- Different outlet water Temp. (10°C,7°C,0°C,-5°C to -35°C) is available
**SAFETY PROTECTIONS**
- Overheating protection of compressor's motor
- Discontinuous flow protection of cooling/chilled water
- Phase protection of power supply
- Anti-freezing protection of chilled water
- Over-voltage & under-voltage protection of power supply
- Three-phase Unbalance protection of power supply
- Protection for exhaust temperature of compressor is too high
- Protection for low pressure of refrigerant is too low
- Protection for outlet temperature of chilled water is too high
- Protection for high pressure of refrigerant is too high
**Technical Specification**
**Specification Table for MPSA Series**
| Model | MPSA-440.2c | MPSA-510.2c | MPSA-540.2c | MPSA-590.2c | MPSA-640.2c | MPSA-670.2c | MPSA-760.2c | MPSA-850.2c | MPSA-910.2c | MPSA-1010.2c |
|---------------|-------------|-------------|-------------|-------------|-------------|-------------|-------------|-------------|-------------|--------------|
| Cooling Capacity (KW) | 440 | 510 | 540 | 590 | 640 | 670 | 760 | 850 | 910 | 1010 |
| Cooling Capacity (10â´ Kcal/hr) | 38 | 44 | 46 | 51 | 55 | 58 | 65 | 73 | 78 | 87 |
| Running Control Mode | PLC Full Automatic Control | PLC Full Automatic Control | PLC Full Automatic Control | PLC Full Automatic Control | PLC Full Automatic Control | PLC Full Automatic Control | PLC Full Automatic Control | PLC Full Automatic Control | PLC Full Automatic Control | PLC Full Automatic Control |
| Power Supply | 380V/3N ~ 50Hz | 380V/3N ~ 50Hz | 380V/3N ~ 50Hz | 380V/3N ~ 50Hz | 380V/3N ~ 50Hz | 380V/3N ~ 50Hz | 380V/3N ~ 50Hz | 380V/3N ~ 50Hz | 380V/3N ~ 50Hz | 380V/3N ~ 50Hz |
| Total Power (KW) | 215 | 249.2 | 261.6 | 284.6 | 307.4 | 316.2 | 365.2 | 396.4 | 431 | 470.8 |
| Operating Current (A) | 376.3 | 436.1 | 457.8 | 498.1 | 538 | 553.4 | 639.1 | 693.7 | 754.3 | 823.9 |
| Compressor Type | 5:6 Asymmetric Semi-closed Twin Screw | 5:6 Asymmetric Semi-closed Twin Screw | 5:6 Asymmetric Semi-closed Twin Screw | 5:6 Asymmetric Semi-closed Twin Screw | 5:6 Asymmetric Semi-closed Twin Screw | 5:6 Asymmetric Semi-closed Twin Screw | 5:6 Asymmetric Semi-closed Twin Screw | 5:6 Asymmetric Semi-closed Twin Screw | 5:6 Asymmetric Semi-closed Twin Screw | 5:6 Asymmetric Semi-closed Twin Screw |
| Quantity | 2 SET | 2 SET | 2 SET | 2 SET | 2 SET | 2 SET | 2 SET | 2 SET | 2 SET | 2 SET |
| Startup Type | Y-â–³ Start | Y-â–³ Start | Y-â–³ Start | Y-â–³ Start | Y-â–³ Start | Y-â–³ Start | Y-â–³ Start | Y-â–³ Start | Y-â–³ Start | Y-â–³ Start |
| Energy Regulation Range | 0 - 12.5% - 25% - 37.5% - 50% - 62.5% - 75% - 87.5% - 100% | 0 - 12.5% - 25% - 37.5% - 50% - 62.5% - 75% - 87.5% - 100% | 0 - 12.5% - 25% - 37.5% - 50% - 62.5% - 75% - 87.5% - 100% | 0 - 12.5% - 25% - 37.5% - 50% - 62.5% - 75% - 87.5% - 100% | 0 - 12.5% - 25% - 37.5% - 50% - 62.5% - 75% - 87.5% - 100% | 0 - 12.5% - 25% - 37.5% - 50% - 62.5% - 75% - 87.5% - 100% | 0 - 12.5% - 25% - 37.5% - 50% - 62.5% - 75% - 87.5% - 100% | 0 - 12.5% - 25% - 37.5% - 50% - 62.5% - 75% - 87.5% - 100% | 0 - 12.5% - 25% - 37.5% - 50% - 62.5% - 75% - 87.5% - 100% | 0 - 12.5% - 25% - 37.5% - 50% - 62.5% - 75% - 87.5% - 100% |
| Refrigerating Power (KW) | 189.8 | 220.4 | 232.8 | 252.2 | 271.4 | 280.2 | 329.2 | 365.2 | 387.8 | 427.6 |
| Refrigerating Current (A) | 332.2 | 385.7 | 407.4 | 441.4 | 475 | 490.4 | 576.1 | 639.1 | 678.7 | 748.3 |
| Evaporator Type | Horizontal Type Shell & Tube Dry Type Heat Exchanger | Horizontal Type Shell & Tube Dry Type Heat Exchanger | Horizontal Type Shell & Tube Dry Type Heat Exchanger | Horizontal Type Shell & Tube Dry Type Heat Exchanger | Horizontal Type Shell & Tube Dry Type Heat Exchanger | Horizontal Type Shell & Tube Dry Type Heat Exchanger | Horizontal Type Shell & Tube Dry Type Heat Exchanger | Horizontal Type Shell & Tube Dry Type Heat Exchanger | Horizontal Type Shell & Tube Dry Type Heat Exchanger | Horizontal Type Shell & Tube Dry Type Heat Exchanger |
| Water Flow (m³/hr) | 94.7 | 109.7 | 116.2 | 126.9 | 137.7 | 144.1 | 163.5 | 182.9 | 195.8 | 217.3 |
| Pipeline Interface Size | DN125 | DN125 | DN125 | DN125 | DN150 | DN150 | DN150 | DN200 | DN200 | DN200 |
| Pressure Drop (Kpa) | 59 | 61 | 65 | 67 | 69 | 71 | 73 | 74 | 76 | 77 |
| Condenser Type | High Efficiency Internal Thread Copper Tube Fin Type | High Efficiency Internal Thread Copper Tube Fin Type | High Efficiency Internal Thread Copper Tube Fin Type | High Efficiency Internal Thread Copper Tube Fin Type | High Efficiency Internal Thread Copper Tube Fin Type | High Efficiency Internal Thread Copper Tube Fin Type | High Efficiency Internal Thread Copper Tube Fin Type | High Efficiency Internal Thread Copper Tube Fin Type | High Efficiency Internal Thread Copper Tube Fin Type | High Efficiency Internal Thread Copper Tube Fin Type |
| Air Flow (m³/hr) | 189200 | 219300 | 232200 | 253700 | 275200 | 288100 | 326800 | 365500 | 391300 | 434300 |
| Condensing Axial Fan Quantity | 14 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |