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.
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.
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.
Expansion Valve
Uses high-quality international brands with excellent performance,
high sensitivity, and easy replacement.
Liquid Receiver
The standard liquid receiver ensures normal system operation under
any conditions.
High-efficiency Fan
EC fan: Rear-inclined EC fan with high efficiency, energy-saving,
and low noise. Offers continuously adjustable airflow.
Evaporator
Hydrophilic fins, inner-grooved copper tubes, and efficient design.
Corrosion-resistant and high-efficiency, matching well with
compressors and other refrigeration components.
Air Filter
Metal frame G4 standard filter can be repeatedly washed to reduce
operating costs.
Humidifier
Electrode humidifier using tap water with automatic cleaning
function. Quickly generates pure steam without shutdown for
maintenance.
Drier Filter
High-efficiency in acid removal, filtration, and drying to ensure
reliable system operation.
