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Lane 1: Building Intelligence

HVAC Performance
Controls Optimisation

Most buildings run HVAC systems that have drifted from design intent. We use BMS controls engineering — sequencing logic, setpoint strategies, demand-controlled ventilation, and fault detection — to recover 15–25% energy without touching mechanical plant.

Request Controls Audit View Approach
15–25%
Energy Reduction
Zero
Mechanical Works
12–18mo
Typical Payback
The Problem

Why HVAC Systems Underperform

Most HVAC performance problems aren't caused by failing plant — they're caused by controls that have drifted from design intent. Setpoints nobody has reviewed, sequencing logic never properly commissioned, and schedules running 24/7 regardless of occupancy.

Setpoint Drift

BMS setpoints are tweaked during complaints and never restored. Chilled water temperatures, differential pressure limits, and supply air setpoints creep away from design intent — inflating energy use year after year with no alarm raised.

Our Fix

Full BMS controls audit — every setpoint reviewed against design drawings and corrected.

No Intelligent Sequencing

Chillers and pumps run on fixed lead/lag with no load-based logic. One chiller operates at 40% while a second stages on at 41%. Plant runs inefficiently even when actual demand is low — because the BMS doesn't know better.

Our Fix

Demand-based chiller sequencing with COP-optimal staging and chilled water temperature reset.

Always-On Ventilation

AHUs run at full capacity 24/7 regardless of occupancy. No demand-controlled ventilation, no supply air temperature reset, no static pressure reset. The building conditions empty spaces and wastes fan and cooling energy continuously.

Our Fix

BMS-integrated DCV using CO₂ and occupancy inputs, with supply air temperature and static pressure reset.

Capabilities

Our Technical
Approach

Five BMS controls work streams, each targeting a specific category of HVAC energy waste. Every intervention is software and logic — no mechanical plant is touched.

Controls Stack
BACnet IP / Modbus TCP
Tridium Niagara / Open BMS
Fault Detection & Diagnostics
IPMVP Energy Baselining
01
BMS Controls Audit & Sequence Review
Systematic review of all existing BMS sequences, setpoints, and schedules against original design drawings and commissioning records. We identify drift, stacked manual overrides, control conflicts, and orphaned logic. Output: a prioritised fault list with estimated energy impact for each item.
Sequence Review Setpoint Audit Design vs Actual
02
Chiller Plant Sequencing & Optimisation
Implement demand-based chiller staging with COP-optimal lead/lag selection. Chilled water supply temperature reset based on aggregate coil valve positions. Cooling tower approach temperature control via condenser water setpoint — all programmed directly into the BMS.
Chiller Sequencing CHWS Reset CT Approach Optimisation
03
Demand-Controlled Ventilation (DCV)
CO₂ and occupancy-based ventilation control programmed into the BMS. Supply air temperature reset, duct static pressure reset, and economiser logic modulate outdoor air to actual occupancy. Fan energy reduction is typically the fastest payback measure on any HVAC system.
CO₂ / Occupancy SAT Reset Static Pressure Reset
04
Variable Flow & VFD Control Strategies
Differential pressure reset strategies for secondary chilled water pumping systems. AHU fan VFD control via duct static pressure reset. Pump and fan sequencing logic to stage units in and out based on actual load — rather than running all plant at reduced speed simultaneously.
DP Reset Fan VFD Control Pump Staging
05
Fault Detection & Diagnostics (FDD)
A continuous BMS monitoring layer that compares actual performance against design baselines. Automated alerts for simultaneous heating and cooling, valve authority failures, sensor drift, and schedule overrides — catching control faults before they become expensive problems or complaints.
FDD Monitoring Simultaneous H&C Sensor Drift Alerts
15–25%
Energy Reduction
+30%
Efficiency Gain
12–18mo
Payback
Zero
Mechanical Works Required
Proof of Work

See how it performs in the real world.

Verified energy reductions, efficiency gains, and payback timelines from BMS controls optimisation projects.

View Outcomes
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Related Services

Complementary capabilities that work together with HVAC performance tuning.

BMS Upgrades & Enhancements

Modernise controllers and extend your existing BMS without full replacement.

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Energy Retrofits & Analytics

Physical retrofits and IPMVP-verified savings measurement and reporting.

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Smart Facility Solutions

Sensor networks for demand-based cleaning and hygiene monitoring.

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Fix your controls, not your plant.

Book a BMS controls audit. We'll review your sequences against design intent and identify your top efficiency opportunities.

Request Controls Audit View Our Process