Natural cooling principle: By increasing the air cooler, the return chilled water is pre-cooled. When the ambient temperature is sufficiently low, the outlet water from the air cooler meets the usage requirements, and the chiller unit does not need to operate. When the ambient temperature is not low enough, the outlet water from the air cooler fails to meet the usage requirements, necessitating the activation of the chilled water unit to supplement cooling capacity. When the ambient temperature is excessively high and free cooling is unachievable, the return water bypasses the air cooler through a three-way valve and directly enters the evaporator, relying entirely on the chilled water unit for cooling. The natural cooling system resembles a conventional chilled water system, connecting the outdoor natural cooling unit to the indoor chilled water demand side via piping. The natural cooling function is internally converted by the chilled water unit, eliminating the need for compressor operation in winter and significantly enhancing system reliability.
Item :
HX-AProduct name :
Free Cooling ChillerCooling capacity :
100kw~1000kwRefrigerant :
R22（R407C/R410A/R134A/R404A/R507A）Environmentally FriendlyMOQ :
1 unitApplication :
Data Centers & IT Infrastructure,Continuous Industrial Process Cooling,High-Altitude & Marine ClimatesFree Cooling Chiller – The Vanguard of Energy Efficiency
Core design：Adopting an integrated design of dry heat exchanger and mechanical refrigeration, coupled with an intelligent load forecasting system, it can accurately match the cooling demand; Anti-corrosion and anti-pollution body, suitable for complex working conditions, ensuring long-term stable operation.
Usually, air is used for cooling. The cost of refrigeration units is relatively high, and a comprehensive evaluation of installation rationality is required in hot areas. By increasing the required temperature to reduce cooling load, the utilization rate of natural cooling can be improved.
It is the preferred solution for cooling systems, but in high humidity and low temperature environments, dehumidification equipment needs to be used (depending on the specific situation), which may offset some of the energy-saving benefits. In high-altitude or oceanic climate areas, demand centers can directly utilize outdoor low-temperature air cooling for over 70% of the year.
Fine temperature management and customer collaboration can achieve significant cost savings by adjusting temperature settings while ensuring stable equipment operation.
| Parameter | HX-30~300FL Series (Free Cooling) | |
|---|---|---|
| Cooling capacity (kW) | 100 kW ~ 1000 kW | |
| Cooling capacity (Kcal/h) | 8600 ~ 860000 Kcal/h | |
| Total power (kW) | 30 ~ 300 kW | |
| Running current (A) | 60 ~ 550 A | |
| Power supply | 3 Phase 380V 50Hz | |
| Temp. control range (℃) | -20℃ ~ 30℃ | |
| Temp. control accuracy (℃) | ±2.0 | |
| Refrigerant | Type | R22 (R407C / R410A / R134A / R404A / R507A Optional) |
| Compressor | Way to control | Thermal Balance Expansion Valve / Electronic Expansion Valve |
| Form | Screw Compressor | |
| Chilled Water Tank | Tank configuration | Round / Square, Built-in / External Options |
| Tank material | SUS304 Stainless Steel | |
| Free Cooling Coil (Dry Cooler) | Types of | Efficient copper tube + aluminum foil fin type + external rotor cooling fan |
| Fan type | External Rotor Fan | |
| Evaporator | Types of | Water tank coil type (Shell and tube type) |
| Chilled water flow (m³/h) | 15 ~ 150 m³/h | |
| Condenser | Types of | Efficient copper tube + aluminum foil fin type + external rotor cooling fan |
| Cooling air flow (m³/h) | 30000 ~ 300000 m³/h | |
| Fan power (kW) | 1.8 ~ 40 kW | |
| Safety Protection | Compressor overheating protection, overcurrent protection, high and low pressure protection, overtemperature protection, flow protection, phase sequence/phase loss protection, exhaust overheating protection, free cooling fan protection, antifreeze protection. | |
| Dimensions & Weight | Dimensions (L×W×H) | Customized: Dimensions to be discussed based on project requirements |
| Unit weight (KG) | 550 ~ 6500 KG | |
Maximized Free Cooling |
OPEX Optimization |
Integrated Hybrid Design |
Smart Load Prediction |
Extended Cooling Window |
Harsh Environment Durability |
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