Liquid Cooling COOLING NORMAL1 ACTIVE ALARM2 ACTIVE ALARMS COOLING HELD · N+1 LOST
Data Center 1 › Liquid Cooling — cooling towers, isolation HX, 3 CDUs (N+1), AI Pod A direct-to-chip
Updated: 10:42:31
✎ Properties
IT liquid load
1,282 kW
8 racks · avg 160 kW · 67% of CDU
Facility water
84.2 / 99.8 °F
ASHRAE W32 · 563 gpm · 15.6° ΔT
TCS supply
88.2 °F
setpoint 87.8 · return 104.5 · 574 gpm
CDU redundancy
N 2 of 3 on · no spare
CDU-1 pump fault · CDU-3 started
Dew point margin
29.4 °F
room dew point 58.2°F · no condensation
Leak detection
DRY
24 zones · racks, CDUs, under floor

Liquid Cooling — Cooling Tower to Chip

towers → water treatment → isolation HX → facility water → CDUs → TCS → rack manifolds → cold plates
OUTDOORS · COOLING TOWERS · OPEN CONDENSER WATERCENTRAL PLANT · WATER TREATMENT · ISOLATION HX · FWS PUMPSDATA HALL · AI POD A · 3 CDUs (N+1) · 8 DIRECT-TO-CHIP RACKSHEAT REJCooling Tower 162%FANBASIN 68% · MAKE-UP OK1,400 TONS · VFD FANSIN95.4°FOUT80.9°FHEAT REJCooling Tower 261%FANBASIN 68% · MAKE-UP OK1,400 TONS · VFD FANSIN95.2°FOUT81.0°FTREATMENT OKWater Treatmentcondenser water controllerConductivity1,180µS/cmpH8.3ORP412mVCorrosion0.4mpyInhibitor feed98%Bleed3.1gpmside-stream filter · ΔP 2.4 psiISOLATIONPlate HX-11,312 kWapproach 3.6°F · ΔP 6.2 psiFWS 99.8 → 84.2°FFWP-1 · 76%FWP-2 standbyFWS 563 gpm · 84.2 / 99.8°F · class W32LEAD · RUNCDU-1642 kWTCS 87.8 / 104.2°F286 gpm · filter ΔP 3.1 psiP1P2COOLANT LEVEL 92% · LEAK TRAY DRYPUMP FAULTCDU-10 kWTCS — / —°F0 gpm · filter ΔP 3.1 psiP1P2P1 FAULT · P2 FAILED TO START · ISOLATEDLAG · RUNCDU-2640 kWTCS 87.9 / 104.1°F286 gpm · filter ΔP 2.8 psiP1P2COOLANT LEVEL 92% · LEAK TRAY DRYLEAD · RUNCDU-2651 kWTCS 88.1 / 104.6°F291 gpm · filter ΔP 2.8 psiP1P2COOLANT LEVEL 92% · LEAK TRAY DRYSTANDBYCDU-30 kWTCS — / —°F0 gpm · filter ΔP 2.2 psiP1P2READY · AUTO START ON FAULTAUTO START · RUNCDU-3638 kWTCS 88.3 / 104.4°F283 gpm · filter ΔP 2.2 psiP1P2STARTED 10:42:09 · PICKING UP LOADTCS SUPPLY 88.2°F · 574 gpm · 31 psiTCS RETURN 104.5°F · 18 psi · dew point margin 29.4°FA01156 kW103.2°Fout · ΔT 15.4DRYA02162 kW104.0°Fout · ΔT 15.4DRYA03159 kW103.6°Fout · ΔT 15.4DRYA04168 kW105.3°Fout · ΔT 15.4DRYA05151 kW102.4°Fout · ΔT 15.4DRYA06160 kW104.1°Fout · ΔT 15.4DRYA07154 kW103.0°Fout · ΔT 15.4DRYA08132 kW101.8°Fout · ΔT 15.4DRYRDHx · FANS 41%
Condenser water (cool)Condenser water (hot) Facility water supplyFacility water return TCS supply to cold platesTCS returnStandby Chip colors: coolant outlet temperature per server tray
Active alarmsMAJOR 2EVENT 1Email and SNMP trap sent to Facilities and IT on-call · 10:42:12
MAJOR10:42:05CDU-1 · Pump 1 fault, Pump 2 failed to start · secondary flow 0 gpmData Hall › AI Pod A › CDUsMAJOR10:42:11CDU group redundancy lost · N+1 → N · 2 of 3 CDUs carrying 1,289 kWlogic alarm · 3 CDU pointsEVENT10:42:09CDU-3 auto start · picking up load · TCS supply holding 88.2°FCDU-3 controller