Our Solution
4D Monitoring uses wireless differential pressure sensors to measure pressure drops across filters, coils, and pipework. Rising differential pressure (DP) is a clear sign of blockages, fouling, or restricted flow. By monitoring DP in real time, facilities teams can act at the right moment — changing filters or flushing systems when performance drifts, not just on fixed schedules.
All data is delivered into secure dashboards where exception rules highlight anomalies, helping to prevent faults, improve efficiency, and keep air and water systems operating safely.
Occupant complaints are a common consequence of poorly managed temperatures, ranging from discomfort in underheated or overheated areas to frustration with inconsistent conditions between floors or zones. Beyond reducing satisfaction, frequent complaints place added pressure on facilities teams and can negatively affect productivity and wellbeing — issues highlighted in CIBSE’s guidance on thermal comfort.
Occupant Complaints
Wasting Energy
Air handling units, pumps, and chilled water systems depend on free-flowing air and water. Blockages increase strain, waste energy, and shorten asset life. Without monitoring, these issues are often missed until performance drops significantly — or systems fail. Pressure monitoring gives a simple, reliable way to keep systems efficient and prevent unexpected breakdowns.
<why it matters>
Restricted Flow
As filters clog with dust and particles, resistance builds up in the system. This reduces airflow or water flow, increases energy use, and risks damage further down the line. Monitoring differential pressure shows exactly when cleaning or replacement is needed, avoiding both failures and premature maintenance.
Undetected Stress
When pumps or fans work against higher resistance, they consume more power, generate excess heat, and wear out faster. Rising differential pressure provides an early warning so corrective action can be taken before costs rise and asset life is cut short.
Case Study
At a large office campus, DP sensors were installed across key AHUs. Within weeks, data revealed rising resistance across two filters well before the next scheduled maintenance. The filters were replaced at the planned service window rather than failing in between, avoiding costly downtime and disruption.
The facilities team also identified a fouled coil causing inefficient cooling. By catching it early, energy waste was reduced and asset life preserved.
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