科學園製冷系統全面分析 • 11個文件夾 • 48個檔案 • 2.1M+ 數據記錄
128 points across 9 Crestron DIN controllers
Signal types: 62 AI • 46 BI • 16 BO • 4 AO
Systems: B12W chilled water pumps, heat exchangers (HX-12W-B01 to B04), building water valves, bypass
Notable: 29% spare capacity (37/128 points)
2,298 pages — Combined BMS O&M manual + Detailed Interface Documents
17,611 parsed DID points across 14 building systems
| System | Pages | Points | Protocols |
|---|---|---|---|
| LVSB/Generator/AHF/UPS | 389–735 | 7,548 | Modbus, BACnet/IP |
| HVAC VAV and FCU | 1,366–1,605 | 6,433 | BACnet, LonWorks |
| HVAC AHU/PAU/Air Side | 955–1,365 | 1,211 | BACnet, TCP/IP |
| HVAC Chiller Plant | 869–954 | 90 | RS-485 |
| Lift & Escalator | 1,647–1,666 | 222 | Modbus |
| Security/Smart Card | 1,741–1775 | 436 | TCP/IP |
| Landlord Lighting | 1,606–1646 | 208 | BACnet |
17 PNG screenshots from BMS interface covering 17 buildings/sub-systems
Date range: 2026-08-24 to 2026-08-25
| Building | Type | Temp Range (°C) | Power (kW) | Alarms |
|---|---|---|---|---|
| 13W | Chiller Plant | 28.4–35.9 | 2,716.7 | Pre/High/Low Temp |
| 7W | Chiller Plant | 0.0–34.2 | 2,263 / 11,487 | Pre/High/Low Temp |
| 10W-B16 | Pump | 7.4–15.0 | — | 14 alarms |
| 10W-B17 | Pump | — | — | 13 alarms |
| 11W | Pump | 8.4–14.2 | — | 10 alarms |
| 12E | Pump | 8.7–14.3 | — | 11 alarms |
| 12W | Pump | — | — | VSD Fault |
| 15W | Secondary | — | 30–13,007 | Normal |
Overall aggregates: Temp range 0.0–39.9 °C (n=178) • Pressure 0.0–846.5 kPa (n=151) • Flow 0.0–528.2 L/s (n=56)
7W&13W_Chiller Water pump_TrendLog.xlsx (12.9 MB, 10 sheets)
Date range: 2025-07-01 to 2026-08-17
7W Chilled Water Pumps
4 pumps (No.4,5,6,7) • Hz, kW, kWh data
Avg Hz: 47.2 (No.4,5) / 22.4–23.0 (No.6,7)
Avg kW: 23.4–29.9 (No.4,5,8) / 71.4–72.4 (No.6,7)
13W Chilled Water Pumps
5 pumps (No.304–308) • Hz, kW, kWh data
Avg Hz: 16.8–27.6 (No.304,305,308) / 9.3–11.6 (No.306,307)
Avg kW: 22.3–35.0 (No.304,305,308) / 69.5–71.5 (No.306,307)
Condenser water pumps: 7W (4 pumps) + 13W (5 pumps) with Hz, kW, kWh data through Aug 2026
7 units per building (B10 & B13)
Model: WCC-10/13-301 to 307
Type: Semi-hermetic centrifugal VSD
Capacity: 3,660 kW (1,040 TR) each
Refrigerant: R134a / R407c
Min COP: 7.133 (NPLV)
Motor: 670 kW • 50 Hz
7 units per building (B10 & B13)
Model: CT-10/13-RO1 to RO2
Type: Crossflow
Heat rejection: 4,450 kW each
Condensing water flow: 390 L/s
Ambient wet bulb: 29°C
35,039 records • 14 chillers (B10 & B13, CH-01 to CH-07)
| Chiller | Runtime % | Mean COP | Max COP |
|---|---|---|---|
| B10 CH-01 | 47.8% | 3.84 | 7.54 |
| B10 CH-03 | 44.8% | 4.29 | 9.69 |
| B10 CH-06 | 12.4% | 10.26 | 154.8 |
| B10 CH-07 | 16.1% | 9.92 | 201.9 |
| B13 CH-01 | 37.2% | 4.09 | 17.42 |
| B13 CH-04 | 22.1% | 4.76 | 9.86 |
| B13 CH-07 | 19.4% | 10.43 | 6,552 |
Building avg COP: B10: 3.4–8.4 • B13: 3.6–9.8 (seasonal variation)
16,849 records • 16 chillers (B10/B13 CH-01 to CH-08)
Key changes from 2025:
New chillers: B10 CH-08, B13 CH-08 added
B10 CH-01/02/03: Zero efficiency readings (possibly not running)
B10 CH-06/07: Now running 88% of time at COP 8.9–9.2
B13 CH-07: Running 99% of time at COP 8.65
2026 Jan avg: B10 COP 9.33 • B13 COP 8.06
Period: 2025-06-01 to 2026-05-31
Total: 12,588,533 kWh
Peak 30-min: 2,234 kWh
Monthly avg: 1,048,211 kWh
Top consumers: TC3 (3.34 GWh) • TC2 (2.83 GWh) • TD2 (1.30 GWh)
Period: 2025-06-01 to 2025-12-07
Total: 9,339,198 kWh (partial year)
Peak 30-min: 2,301 kWh
Monthly avg: 1,334,171 kWh (Jun–Sep)
Top consumers: TD3 (1.67 GWh) • TD1 (1.63 GWh) • TE1 (1.52 GWh)
| Building | Size | Type | Status | Contractor |
|---|---|---|---|---|
| 6W | 3.1 MB | Water Side | — | China Zhejiang Construction |
| 10W | 3.6 MB | — | — | WSP / Yau Lee |
| 11W | 2.3 MB | — | AS-FITTED | Silvertech E&M |
| 12W | 2.4 MB | Air Side | AS-BUILT | WSP |
| 16W | 1.0 MB | Water Side | AS-BUILT | — |
| 18E | 0.8 MB | Air Side | — | J. Roger Preston |
| 20E | 1.2 MB | Air + Water Side | — | ATAL Engineering |
| 22E | 1.5 MB | Air + Water Side | AS-BUILT | ATAL Engineering |
2 drawings: Service Tunnel + Combined As-Fitted
Shows: Chilled water system, condenser water system, pumps, valves, piping
Drawing: MEP/AC/TS/19/2 (Tender stage, Feb 2026)
Buildings: Energy Building 7W & 13W
Systems: Chilled water, condenser water, chemical treatment, heating water
Changes: Cooling towers 4→6 per building, pipes black steel→ductile iron
Project: DCS Improvement Work (IW1B) — Chiller Bulk Purchase at 7W and 13W
Contractor: Carrier Hong Kong Limited • Consultant: WSP (Asia) Ltd
Equipment Specs
Model: 19DV-M64M645845F9
Quantity: 14 units (min), 12 assumed for simulation
Capacity: 1,165 TR (4,097 kW) each
Type: Water-cooled hermetic centrifugal with VFD
Refrigerant: R-1233zd(E) (GWP ~1)
Full-load COP: 6.28 • IPLV COP: 12.39
Motor: 652 kW, 5,500 rpm, VFD soft start
Energy Savings
Annual cooling load: 153 GWh
Existing annual cost: $25.8M USD
New annual cost: $21.5M USD
Savings: $4.39M USD/year (17%)
Chiller energy savings: 21%
Per-chiller savings: 29%
Plant capacity: 16,300 TR duty + 2,100 TR standby