Modular Dual-cold Source Computer Room Precision Cooling Solution
Product Advantages
Dual cooling source configuration with one backup, manual/auto switching, stable and reliable system, high control accuracy.
High energy efficiency ratio (EER): Air-cooled units ≥3.0, water-cooled units ≥3.4, freezing water units ≥20. Custom products with higher EER available based on customer needs.
High sensible heat ratio design.
Modular units with universal internal parts, cost-saving for users.
Large cooling capacity with a small footprint, space-saving for equipment.
Easy transportation, disassembly, and assembly on site, solving size limitations.
Units can be installed closely or separately, addressing local overheating and space constraints.
Chilly Source Combination Methods
The KMT.S unit of the Lingyun series has three different chilly source combination methods. Among them, KMA+KMU and KMW+KMU are both combinations of one fluorine system and one chilled water system, while KMU+KMU is a combination of two chilled water systems. Each chilly source system can operate independently without affecting each other, and can be manually or automatically switched, offering higher control accuracy.
In the air-cooled and water-cooled systems, the indoor fan drives air through the air-conditioning evaporator, transferring heat to the refrigerant. In the air-cooled system, the outdoor condenser removes heat through air, while in the water-cooled system, a plate heat exchanger or shell-and-tube heat exchanger removes heat through water.
The chilled water system is supplied with chilled water by the main unit, and the chilled water coil removes heat from the air.
| Superior Performance | Details |
| System Characteristics | Dual cooling system with one backup, manual/auto switching, stable and reliable, high control accuracy |
| Structural Characteristics | More compact unit structure under the same cooling capacity, more space-saving |
| Working Environment | Working voltage and frequency: 380V ±10% 50 ±3Hz,SCA+SCU outdoor ambient temperature range: -40~50°C,SCW+SCU cooling water temperature range: 7~40°C |
| Airflow Range | 6800-26600m³/h |
| Cooling Capacity Range | KMA+KMU/KMW+KMU: 25-104kW; KMU+KMU: 25-120kW |
| Energy Efficiency Ratio | Air-cooled unit ≥3.0, water-cooled unit ≥3.4, freezing water unit ≥20 |
| Sensible Heat Ratio | Air-cooled unit ≥0.9, water-cooled unit ≥0.9, freezing water unit ≥0.88 |
| External Static Pressure | 20-300Pa |
| Indoor Temperature Control | KMA+KMU/KMW+KMU: 17-32 ±1°C; KMU+KMU: 15-40 ±1°C |
| Indoor Humidity Control | 40-70% ±5% |
| Filter Grade | G4 and above |
| Protection Functions | A) System protection: Standard phase sequence protection, under-voltage protection, phase failure protection, point-type water leakage alarm. Optional surge protection, phase sequence error, and belt-type water leakage alarm, etc. B) Component protection: Standard compressor protection, fan alarm, temperature and humidity sensor failure, humidifier protection, heater protection, filter clogging alarm, etc.; Control system with self-diagnosis mode for easy component monitoring and maintenance |
| Monitoring Functions | Supports RS-485 communication interface, supports MODBUS-RTU protocol (standard) Supports Ethernet interface, supports MODBUS-TCP, SNMP, HTTP protocols (optional) Supports WEB page access to the unit (optional) |
| IP Rating | Indoor unit: IP20; Outdoor unit: IP54 |
| Protection Class | Class I |
| Fire Resistance Grade | Grade A |
| Safety Devices | Optional smoke alarm, fire alarm |
| Information Interface | A) Display specifications: Standard 7-inch color touchscreen B) Display content: 1. Real-time operation status of the unit 2. Automatic maintenance reminders, fault diagnosis, component alarm information, etc. 3. Graphical display of temperature and humidity curves, output status of all components, and component operation timing C) Information recording: 1. Operation time of the whole unit and components 2. All operation actions of the unit 3. 500 historical alarm records |
| Other Features | Customizable higher efficiency units Multiple return air temperature control methods Variable setpoint control Only EC fan configuration is provided |
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PTC Electric Heater
Three-stage electric heating with perfect overheat protection and air ionization prevention function.
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Intelligent Control System
7-inch touchscreen displaying operation status and alarms. Advanced human-machine interface enables simple, quick operation with professional, energy-saving, and intelligent functions.
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Scroll Compressor
High-efficiency scroll compressor with a COP value exceeding 4.0. Equipped with safety devices for high efficiency, low noise, and long service life.
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Expansion Valve
Uses high-quality international brands with excellent performance, high sensitivity, and easy replacement.
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Liquid Receiver
The standard liquid receiver ensures normal system operation under any conditions.
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High-efficiency Fan
EC fan: Rear-inclined EC fan with high efficiency, energy-saving, and low noise. Offers continuously adjustable airflow.
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Evaporator
Hydrophilic fins, inner-grooved copper tubes, and efficient design. Corrosion-resistant and high-efficiency, matching well with compressors and other refrigeration components.
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Air Filter
Metal frame G4 standard filter can be repeatedly washed to reduce operating costs.
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Humidifier
Electrode humidifier using tap water with automatic cleaning function. Quickly generates pure steam without shutdown for maintenance.
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Drier Filter
High-efficiency in acid removal, filtration, and drying to ensure reliable system operation.
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Modular Dual Cold Source Computer Room Precision Cooling Solution Large Capacity Images
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