Event List

Database Connected
System Online
May 14, 2026 10:30
Overview
Dashboard
Graph View
Vibration
System Health
Rules
AI Prediction
Activities
Details
Devices
Reports
Operator Center
Accounts
Mapping
Rule Setup

System Operation Flow

Step 1
Mapping Setup
Configured
➞
Step 2
Rule Setup
7 Rules
➞
Step 3
Data Collection
BACnet → AI
➞
Step 4
Alert Detection
8 Active
➞
Step 5
AI Prediction
Running
Total Events
136
+12% from last month
AI Detected
47
94.2% Accuracy
Rule-Based
89
78.6% Coverage
Urgent Alerts
8
-3 from yesterday
🔧
38
Maintenance
⚙
42
Operation
💡
29
Energy
🔮
27
Prediction

Event List

All 136
Rule-based 89
AI Model 47
Critical
Warning
Info
Equipment System Location Fault Counted Maintenance Operation Energy Prediction Urgency Service Type Frequency Duration Action Detail
▶AHU-703AHULevel 723 8744 Critical Ward3.2/day4h 20m
▶AHU-707AHULevel 718 5643 Low Ward1.8/day2h 10m
▶AHU-1301AHULevel 1312 3522 Low ICU0.9/day1h 30m
▶CH-CH-001ChillerPlant Room5 1211 Low Plant0.4/day45m
▶AHU-1305AHULevel 138 2321 Low Ward0.6/day55m
▶AHU-703AHULevel 715 4533 Low Ward1.2/day2h 45m
▶CH-CH-002ChillerPlant Room3 1110 Low Plant0.3/day35m
▶AHU-707AHULevel 710 2422 Low Ward0.8/day1h 50m

60-Minute Sensor Trends - AHU-703

Monthly Event Distribution

18
Jan
15
Feb
12
Mar
14
Apr
16
May
22
Jun
31
Jul
8
Aug
2
Sep
MTTD
2.4h
Mean Time to Diagnosis
↓ 18% from last month
MTTR
4.8h
Mean Time to Repair
↑ 5% from last month
MTTF
720h
Mean Time to Failure
↑ 12% from last quarter

Trend of Total Fault Detection

Click on a bar to see Top 10 equipment and fault types for that period.

Asset Health KPI - AHU-703

Equipment Condition
87
Performance
82
Fault Count
23
Thermal Comfort
91
Filter
Excellent
Machine Dampers
Excellent
Modulating Valve
Acceptable
Fan
Excellent
Sensor
Poor
Excellent
Acceptable
Poor

Fault Trend by Month

18
Jan
15
Feb
12
Mar
14
Apr
16
May
22
Jun
31
Jul
8
Aug
AHU-703 SAT
24.5
C
AHU-703 RAT
22.8
C
CO2 Level
412
ppm
HVS
78.5
%
Normal
High / Warning
Critical
SAT (Supply Air Temp)
Normal
24.5
Celsius
RAT (Return Air Temp)
Normal
22.8
Celsius
CO2 Level
Normal
412
ppm
HVS (Valve Position)
High
78.5
%
CVS (Fan Speed)
Normal
65.0
%
SAFL1 (Filter Delta P)
Normal
125
Pa
AI Model Gen III CNN-LSTM Performance Metrics
Macro F1 Score
94.2%
Precision
93.8%
Recall
94.6%
Training Samples
12,450
Vibration RMS
4.2
mm/s
Peak Vibration
7.8
mm/s
Health Score
68
%
ISO 10816 Class
Zone C
Bearing Condition
Alert

Vibration Trend - AHU-703

Danger Zone
Alert Zone
Normal

Frequency Spectrum Analysis

Vibration Diagnostics

Frequency BandAmplitudeDiagnosticConfidenceStatus
1X (Fan Speed)3.8 mm/sUnbalance / Misalignment87%Alert
2X1.2 mm/sMisalignment62%Warning
Harmonics (3X-6X)0.5 mm/sLooseness34%Normal
Non-synchronous2.1 mm/sBearing Defect79%Alert

Recommendations

Critical Priority
AHU-703 fan bearing showing elevated vibration at 1X and non-synchronous frequencies. Schedule bearing inspection within 48 hours.
Preventive
Perform fan balance check and alignment verification during next PM window.
Monitoring
Continue 24/7 vibration monitoring. Set alert threshold at 7.1 mm/s (ISO 10816 Zone D entry).
92%
Overall Health
2
Critical Issues
5
Warnings
24
Devices Online

Scores Breakdown

92%
Overall Score
8/36 rules triggered
Maintenance91%
3/12 rules triggered
Energy78%
6/14 rules triggered
Comfort85%
4/10 rules triggered

Priority Actions

🔴
AHU-703 CCV Fault
Cooling coil valve stuck open · 4d 18h
🟡
AHU-707 SAT Sensor Drift
Supply air temp sensor bias · 2d 5h
🔵
CH-CH-001 COP Declining
Chiller efficiency below threshold · 6h
Building Health Overview
Good
Warning
Critical
Princess Margaret Hospital92
▼Block G76
▼Floor 776
AHU 70347
SAT 32.5C
AHU 70768
SAT 26.2C
▼Block S94
▼Floor 1394
AHU 130194
SAT 23.8C
AHU 130591
SAT 24.1C
▼Plant Room95
CH-CH-00196
COP 5.82
CH-CH-00295
COP 5.71

Click on a block/floor/plant to expand/collapse. Click on a device to view details.

Prioritized Equipment

Sorted by health score ascending — lowest health first
Equipment Type System Health Triggered Rules Applied Rules Trend Action
AHU-703 Air Handling Unit Block G / Floor 7 47% 4 8 📉
AHU-707 Air Handling Unit Block G / Floor 7 68% 2 8 📉
AHU-1305 Air Handling Unit Block S / Floor 13 91% 1 6 ➡️
AHU-1301 Air Handling Unit Block S / Floor 13 94% 0 6 ➡️
CH-CH-002 Chiller Plant Room 95% 0 4 ➡️
CH-CH-001 Chiller Plant Room 96% 0 4 ➡️
Total Rules
7
Active Rules
7
Rule Hits
89
Coverage
78.6%
Rule-Based Detection
Traditional threshold-based rules
Total Events Detected89
Coverage Rate78.6%
False Positives12
AI Model Detection
Gen III CNN-LSTM
Total Events Detected47
Macro F1 Score94.2%
Unique Detections+47

Fault Detection Rules

Active
Triggered
⚡ = Cost impact
Rule Severity Category Intensity Activity Duration Costs Occurrences
High Supply Air Temperature Critical Energy 3.00 Active 4d 18h ⚡⚡⚡ 23
High CO2 Level Warning Comfort 1.62 Intermittent 2d 5h ⚡⚡ 18
High Vibration Warning Maintenance 0.85 Inactive 1d 2h ⚡ 7
Low Supply Air Temperature Info Energy 0.42 Inactive 8h — 3
Low Humidity Info Comfort 0.21 Inactive 3h — 1
CCV Fully Open Critical Energy 2.80 Active 5d 10h ⚡⚡⚡ 44
SAT Not at Setpoint Warning Energy 1.45 Intermittent 3d 6h ⚡⚡ 18

FMC Identified Timeline

Past 30 days fault activity by rule
CCV Fully Open 44 occurrences · 5d 10h
High Supply Air Temp 23 occurrences · 4d 18h
High CO2 Level 18 occurrences · 2d 5h
SAT Not at Setpoint 18 occurrences · 3d 6h
High Vibration 7 occurrences · 1d 2h
Jan 6Jan 13Jan 20Jan 27Feb 5
Fault Active
Intermittent
Normal

Rule Calculator

Conditions
IF
AND
AND Duration
Then Trigger
THEN Alarm
Category FMC
Severity
Test Against Historical Data

Focus Items

FMC (Fault Management Code)
FMC quantifies fault severity and urgency based on frequency, duration, and equipment criticality. Higher FMC = faster response needed.
AI Model Training
Training Samples12,450
Validation Samples3,112
Last Trained2025-09-08
Drift Score0.03
Priority Actions
1. AHU-703 SAT fault (FMC: 8.5)
2. AHU-707 HVS anomaly (FMC: 6.2)
3. CH-001 COP trend (FMC: 4.1)
AI Model
Gen III CNN-LSTM
F1 Score
94.2%
Predictions (24h)
23
Avg Confidence
91.3%
Score >80 (Good)
Score 60-80 (Fair)
Score <60 (Poor)
Equipment
AHU-703
Level 7 - 92% Health
AHU-707
Level 7 - 76% Health
AHU-1301
Level 13 - 94% Health
AHU-1305
Level 13 - 91% Health
CH-CH-001
Plant Room - 96% Health
CH-CH-002
Plant Room - 95% Health

SAT Trend - AHU-703

AI Thinking Process

Click on a fault node to highlight correlated faults and filter recommended actions
SAT 7D Prediction
SAT 30D Prediction
RAT 7D Prediction
RAT 30D Prediction
PM (Preventive Maintenance)
34
CM (Corrective Maintenance)
13
Total Events
136
Today
8
This Week
42
Resolved
128

Event Timeline

Today, 14:23
Overheating Detection - AHU-703
SAT exceeded 28C threshold. AI Model confidence: 94.2%
Today, 11:45
High Vibration Resolved - AHU-1301
Vibration returned to normal after fan bearing replacement.
Yesterday, 16:30
Low Humidity Alert - AHU-707
RH dropped below 40%. Humidifier activated.
Yesterday, 09:15
Filter Replacement - AHU-1305
Scheduled PM completed. Filter differential pressure restored to 125 Pa.
Sep 13, 22:05
Chiller Trip - CH-CH-001
High condenser pressure trip. Reset performed at 22:30. Root cause: dirty condenser tubes.
Sep 12, 14:20
CO2 Sensor Calibration - AHU-707
Zero and span calibration completed. Reading verified at 412 ppm.
Sep 11, 08:00
Weekly System Backup
Database backup completed successfully. Size: 1.2 GB. Retention: 30 days.
Equipment
AHU-703
Air Handling Unit
Location
Level 7
Queen Mary Hospital
Health Score
92
Excellent
Status
Online
Last update: 2 min ago

Fault Rule Evaluation Results

Overheating Detection
Temperature Fault
Fault Detected
Sensor: SAT (Supply Air Temperature)
32.5Threshold: 28.0 C
Low Supply Air Temp
Temperature Fault
No Fault
Sensor: SAT (Supply Air Temperature)
24.5Threshold: 18.0 C
High CO2 Level
Air Quality Fault
No Fault
Sensor: CO2 (Carbon Dioxide)
412Threshold: 1000 ppm

Rule-Based Fault Analysis

Rule RefRule NameTime Bar (24h) Fault FreqDurationCategoryTypeExpressionRecommendation
R1High Supply Air Temp
00:0024:00
 3.2/day6h 20mmaintenanceRuleSAT > 28Check cooling coil, verify CHW supply
R2High CO2 Level
00:0024:00
 0.8/day1h 50moperationRuleCO2 > 1000Check outdoor air damper, verify CO2 sensor
R3High Vibration
00:0024:00
 0.3/day40mmaintenanceRuleVIB > 4.0Inspect fan bearings, check belt tension

Gen III AI Model Architecture

AI
Input Layer 10 Features
Sensor Data
>
CNN Layers Feature Extraction
1D Conv
>
LSTM Layers Temporal
Sequence
>
Output Layer 7 Faults
Classification
Total Devices
24
Online
24
Warning
3
Offline
0
Normal
Warning
Critical
AHU-703
Level 7 - Main Building
SAT32.5 C
RAT28.1 C
CO2520 ppm
⚠Critical: SAT at 32.5C, exceeding 28C threshold by 4.5C for 23 minutes.
💡Check cooling coil and verify chilled water supply. Consider reducing SAT setpoint temporarily.
AHU-707
Level 7 - Main Building
SAT26.2 C
RAT24.1 C
CO2520 ppm
⚠Warning: SAT elevated at 26.2C, approaching 28C threshold. Multiple sensors trending high.
💡Schedule preventive maintenance for cooling coil inspection. Monitor HVS valve position.
AHU-1301
Level 13 - East Wing
SAT23.8 C
RAT22.1 C
CO2398 ppm
VIB0.9 mm/s
✅Normal: All parameters within acceptable range. Fan bearing replaced recently - vibration returned to normal.
💡Continue post-repair monitoring for 72 hours. Next PM due in 14 days.
CH-CH-001
Chiller Room
kW847 kW
COP5.82
Flow289 L/s
Approach1.2 C
✅Normal: Chiller operating within design parameters. COP stable at 5.82.
💡Monitor condenser approach temperature trend. Schedule tube cleaning if approach exceeds 2.0C.
Report Period
Sep 2025
Total Events
136
Resolved Rate
94.1%
Avg Response
2.4h

Select Equipment

PMH
Block G
Block S
Chiller
Equipment Status Distribution
Fault Type Distribution

Equipment Performance Charts

SAT Trend (7 Days)
Energy Consumption (kWh)

Monthly Summary

EquipmentTotal EventsCriticalWarningResolvedAvg Response
AHU-7032338201.8h
AHU-70718112152.1h
AHU-13011205123.2h
AHU-130580382.8h
CH-00150251.5h
CH-00230131.2h
Operators 3 Active
E-Log Today 12
Open Actions 5
Avg Resolution 2.4h

New E-Log Entry

E-Log History

2025-09-15 14:45
Cooling coil cleaning performed - AHU-703
⚠ AHU-703 Operator: John Smith
2025-09-15 11:50
Fan bearing replaced - AHU-1301
✅ AHU-1301 Operator: Mary Chan
2025-09-14 17:00
Humidifier checked and refilled - AHU-707
💡 AHU-707 Operator: David Wong
2025-09-14 09:30
Condenser tube cleaning - CH-CH-001
⚙ CH-CH-001 Operator: Peter Cheung
2025-09-13 16:00
DDC firmware update completed - All AHUs
💻 System Operator: Sarah Lee
Total Users
8
Active
6
Administrators
2
Operators
6
Total Mappings
42
Activated
38
Disabled
4
Last Updated
2025-09-14
NameSiteSystemFloor NoEquipmentResultDateActivation
PMH-SAT-703PMHAHU7AHU-703SAT2025-09-14Activated
PMH-RAT-703PMHAHU7AHU-703RAT2025-09-14Activated
PMH-CO2-703PMHAHU7AHU-703CO22025-09-14Activated
PMH-SAT-707PMHAHU7AHU-707SAT2025-09-13Activated
PMH-HVS-707PMHAHU7AHU-707ACTIVEDMDLIM2025-09-13Disable
PMH-SAT-1301PMHAHU13AHU-1301SAT2025-09-12Activated
PMH-SAT-1305PMHAHU13AHU-1305SAT2025-09-12Activated
PMH-CHW-001PMHChiller-1CH-CH-001CHWST2025-09-10Activated
PMH-CHW-002PMHChiller-1CH-CH-002CHWST2025-09-10Disable
PMH-VIB-703PMHVibration7AHU-703VIB2025-09-08Activated
Total Rules
7
Active
7
Critical Rules
3
Preset Rules
5
NameTargetModule NameSeverityInterval (s)CategoryPresetActions
R001AHUoverheating Critical30maintenanceYes
R002AHUhigh_co2 Critical30operationYes
R003AHUhigh_vibration Critical60maintenanceYes
R004AHUlow_sat Low60operationYes
R005Chillerlow_cop Low120energyYes
R006AHUlow_humidity Low120operationNo
R007Allsensor_drift Low300maintenanceNo

Rule Expression & Configuration

Rule R001 — High Supply Air Temperature
SAT > 10 and SAT < 18
Alert Type: Temperature Fault
Alert Reason: Cooling coil fouling or CHW supply issue
Category: maintenance
Target: AHU
Recommendation: Check cooling coil, verify CHW supply temperature and flow rate.
Rule R002 — High CO2 Level
CO2 > 1000
Alert Type: Air Quality Fault
Alert Reason: Outdoor air damper malfunction
Category: operation
Target: AHU
Recommendation: Check outdoor air damper, verify CO2 sensor calibration.

FMC Fault Timeline

00:0006:0012:0018:0024:00
Normal Fault Active Warning
3
Fault Events
6.2h
Total Duration
74%
FMC Score

Sensor Trend (7 Days)