Latest BMS Insights
Expert insights and practical guidance for optimizing your building management systems
460 Lonsdale Street, Melbourne: Tridium Niagara and Honeywell Optimiser Retrofit
Oztech delivered a $1.2m BMS retrofit at 460 Lonsdale Street, upgrading from Honeywell EBI and XL controls to Tridium Niagara and Honeywell Optimisers. More than 300 VAV units were retrofitted in a near-24/7 building with minimal disruption, setting the foundations for a 5-star NABERS rating.
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BMS Retrofit Case Study: 66 Goulburn, Sydney
Retrofitted a 15-year-old BMS with a modern, open protocol Tridium Niagara head-end and BACnet hardware—delivering flexible, future-proof control. Delivered significant early energy reductions, with a 20% reduction in rolling 12-month consumption.
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Seamless BMS Integration Achieves PCA A-Grade and NABERS Goals at 320 Pitt Street
Oztech upgraded mid and high-rise BMS systems to PCA A-grade standards for a Federal Government tenancy. Oztech delivered energy-saving strategies targeting NABERS 5 stars while improving building performance, comfort, and efficiency with minimal maintenance disruption.
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$1M+ BMS & Network Retrofit at Premium Sydney CBD Retail Hub
Oztech delivered a full BMS retrofit and ICN infrastructure upgrade, seamlessly transitioning from legacy systems to open architecture. With strong stakeholder coordination and risk mitigation, our BMS service team installed over $1 million in hardware replacements, achieving more than 30% energy savings.
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Seamless BMS Integration for a Heritage Education Site
Oztech completed a complex BMS retrofit, replacing aging pneumatic hardware and incompatible DDC platforms. Our BMS projects team upgraded 20 air handling units, 60+ fan coil units, and 60 induction units within a strict two-week holiday window, achieving a 20% energy reduction through coordinated mechanical upgrades and seamless execution.
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255 Pitt Street, Sydney: 52% Gas and 18% Electricity Savings Through Smart BMS Control
Smart BMS control at 255 Pitt Street cut boiler gas use by 52% (winter 2025 compared with winter 2024) and electricity by 18% (January to September 2025 compared with the same period in 2024), saving $55,500 in utility costs. Early tuning reduced chiller consumption by 42% within two weeks.
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Threading the Needle: Police HQ’s High Stakes BMS Retrofit
Oztech successfully delivered one of our most complex BMS retrofit projects, migrating 431 VAV boxes, 96 air handling units, and 2 cooling towers from a fragile LonWorks-based legacy head end to a modern platform. Completed in stages with zero downtime, our BMS service team ensured no tenant disruption while meeting aggressive timelines.
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77 Market Street Wollongong, BMS Retrofit and Service Takeover Success
Live migration from decades old proprietary legacy head end and hardware to a new head end in multiple stages with no major faults or service interruption.
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From 3.5 to 5 Stars: A Five-Year NABERS Transformation at Citadel Towers
This BMS project delivered major energy and cost savings by installing a new BMS with predictive HVAC controls, upgrading to smart LED lighting, and replacing old chillers with high-efficiency Turbocor units.
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