Cooling for data centre infrastructure
MAGPRO chillers provide chilled water for data centre cooling systems. Finned air-cooled condensers transfer heat to the surrounding air, removing the need for a cooling tower for chiller heat rejection.
Applications
- AI and high-density data centres
Chilled-water cooling for data centre projects with concentrated IT heat loads. - Sites with limited water availability
Air-cooled heat rejection for projects seeking to avoid cooling-tower water use. - High-ambient and warm-water cooling projects
Customized configurations support projects with higher ambient or chilled-water temperature requirements. - Phased capacity expansion
A modular design supports planning cooling capacity around staged data centre development.
The chiller’s role in the system
The chiller provides chilled water on the facility side of the cooling system. In a liquid-cooling arrangement that uses a coolant distribution unit (CDU), the CDU transfers heat between the facility-water circuit and the secondary loop serving the IT equipment.
Model specifications
| Parameter | Unit | CMA1850F | CMA925D |
|---|---|---|---|
| Cooling capacity | kW | 1850 | 925 |
| Number of compressors | – | 4 | 2 |
| Starting mode | – | Variable-frequency start | Variable-frequency start |
| Starting current | A | 10 | 10 |
| Water-side heat-transfer fluid | – | Water | Water |
| Chilled-water inlet / outlet temperature | °C | 27 / 19 | 27 / 19 |
| Outdoor dry-bulb temperature | °C | 35 | 35 |
| Power supply | – | 400 V / 3-phase / 50 Hz | 400 V / 3-phase / 50 Hz |
| Power input | kW | 365.6 | 196.8 |
| COP | – | 5.060 | 4.700 |
| Refrigerant | – | R513A | R513A |
| Overall dimensions (L × W × H) | m | 14.4 × 2.3 × 2.5 | 7.2 × 2.3 × 2.5 |
| Unit weight | kg | 17240 | 8620 |
Rating conditions: chilled-water inlet (return) temperature 27°C; chilled-water outlet (supply) temperature 19°C; outdoor dry-bulb temperature 35°C; fouling factor 0.018 m²·°C/kW (0.000102 h·ft²·°F/Btu).
Cooling capacity, power input and COP are stated at these rating conditions. The inlet and outlet temperatures above are rating conditions, not operating temperature limits.
Specifications are subject to product improvement. Refer to the supplied unit and its nameplate for the final specifications.
Operating ranges and customization
| Parameter | Unit | Standard configuration | Customized configuration |
|---|---|---|---|
| Ambient temperature | °C | 0 to 46 | -30 to 52 |
| Chiller water outlet temperature | °C | 15 to 30 | Up to 45 |
Operation below 0°C or above 46°C ambient temperature requires a customized wide-temperature version. Chiller water outlet temperatures above 30°C require customization.
The customized 45°C water temperature refers to the chiller outlet.
Cooling capacity, power input and COP in the model specifications apply at the stated rating conditions, not across the entire operating range.
Configuration options
| Configuration | CMA1850F | CMA925D | Description |
|---|---|---|---|
| Free cooling | Optional | Optional | Free cooling through refrigerant pump circulation. |
| Customized power supply | Customizable | Customizable | 380–460 V, 3-phase, 50/60 Hz. |
Core technology
- Magnetic bearing centrifugal compressors
Oil-free compressors form the core of the refrigeration system. - Finned air-cooled condensers
V-shaped finned heat exchangers provide the air-side heat rejection surface. - Flooded evaporator
A flooded evaporator transfers heat from the water circuit to the refrigerant. - EC axial fans
Speed-controlled fans move air through the condenser coils. - Monitoring and protection
Protection functions cover operating pressure and temperature, power supply, sensors, compressors and fans. - AI-driven control and digital twin intelligence
AI-driven control and digital twin intelligence continuously optimize cooling performance as operating conditions change, providing visibility and control throughout the system lifecycle. - Restart after a power interruption
After power is restored, the chiller restarts within 30 seconds and reaches full load within 180 seconds (3 minutes).
Discuss your cooling requirements with Admetal
Contact Admetal about the MAGPRO chiller series. Include your preferred model, project location, required cooling capacity, chilled-water supply and return temperatures, and electrical supply in your message.
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