AiDC-1050 Chiller
1,000 kW air-to-water trim chiller engineered to work downstream of a dry cooler loop, holding facility leaving fluid temperature during peak-summer trim duty for high-density GPU/ASIC rack deployments.
Four independent circuits
4 independent refrigeration circuits at ~250 kW each for staged capacity and partial-load redundancy.
VSD screw compressors
4 × VSD semi-hermetic screw compressors modulate to match real-time trim load.
Dedicated plate heat exchangers
4 × dedicated refrigerant-to-glycol plate heat exchangers, one per circuit.
Low-GWP refrigerant
R-1234ze(E), a mildly-flammable (A2L) low-GWP refrigerant, reduces environmental impact versus legacy options.
Large-diameter EC fan array
8 large-diameter EC axial fans across 2 rows of 4 drive the V-bank microchannel condenser.
Dry-cooler economizer integration
Runs as second-stage trim behind a dry cooler economizer, engaging only when ambient exceeds the dry cooler's capability.
| Engineering Design Basis | |
| Application | Trim chiller downstream of dry cooler for 7 × GB300 rack facility loop |
|---|---|
| Nominal Cooling Capacity | 1,000 kW / 284 RT |
| Required Peak-Summer Trim Duty | ~806 kW calculated |
| Guaranteed Selection Target | ≥ 900 kW net at 95°F ambient |
| Design Ambient | 95–104°F / 35°C |
| Entering Facility Fluid | 40.0°C / 104°F |
| Leaving Facility Fluid | 30.5°C / 86.9°F |
| Nominal Facility Flow | 350 GPM / 79.5 m³/h |
| Fluid | 70% DI water / 30% inhibited propylene glycol |
| Evaporator Pressure Drop Target | ≤ 15 psi / 103 kPa |
| Water-Side Working Pressure | 150 psig minimum |
| Mechanical | |
| Refrigerant | R-1234ze(E), A2L |
| Refrigeration Circuits | 4 independent circuits |
| Circuit Capacity | ~250 kW each |
| Compressor Architecture | 4 × VSD semi-hermetic screw compressors |
| Evaporator Architecture | 4 × dedicated refrigerant-to-glycol plate heat exchangers |
| Condenser Architecture | V-bank microchannel air-cooled condenser |
| Fans | 8 × large-diameter EC axial fans; 2 rows × 4 |
| Performance | |
| Full-Load Chiller Input Target | ~230–275 kW at design point |
| Full-Load Heat Rejection Target | ~1,250–1,300 kW |
| Sound Target | ≤ 78 dBA at 10 ft (subject to final fan/coil selection) |
| Preliminary Performance Map | |
| 75°F / 24°C Ambient | EWT 38°C · LWT 30.5°C · Net ~1,080 kW · Input ~200 kW · COP ~5.4 |
| 85°F / 29°C Ambient | EWT 40°C · LWT 30.5°C · Net ~1,030 kW · Input ~220 kW · COP ~4.7 |
| 95°F / 35°C Ambient | EWT 40°C · LWT 30.5°C · Net ~1,000 kW · Input ~245 kW · COP ~4.1 |
| 105°F / 41°C Ambient | EWT 40°C · LWT 30.5°C · Net ~930 kW · Input ~275 kW · COP ~3.4 |
| 115°F / 46°C Ambient | EWT 40°C · LWT 30.5°C · Net ~860 kW · Input ~305 kW · COP ~2.8 |
| System Operating (Downstream of Dry Cooler) | |
| Chiller to CDU | ~30.5°C / 86.9°F |
| CDU Return at ~980 kW Rack Load | ~42°C / 107.6°F at ~350 GPM |
| Dry Cooler | 42°C entering → 40°C leaving |
| Dry Cooler Heat Rejection | ~170–175 kW at stated condition |
| Residual Trim-Chiller Duty | ~805–810 kW |
| Chiller Leaving Target | 30.5°C maximum |
| Physical / Electrical | |
| Overall Dimensions | 240 × 96 × 96 in (6,096 × 2,438 × 2,438 mm) |
| Operating Weight Target | ~11,850 lb |
| Facility Connections | 6 in minimum; final by velocity / pressure-drop review |
| Electrical Service | 480 V / 3 phase / 60 Hz |
| Estimated MCA | ~430 A preliminary |
| Recommended MOCP | 500 A preliminary |
| Controls | PLC/HMI; BACnet/IP; Modbus TCP/RTU |
24/7 Field Service
Factory-trained field engineers for deployed AiDC-1050 Chiller units.
Warranty
Warranty terms available on request from applications engineering.
Spare Parts
Compressors, PHEs, and EC fan modules stocked regionally.