HDAC MAKES YOUR EXISTING COMMERCIAL AIR CONDITIONING USE LESS POWER.
HDAC measures each unit, improves how it runs and shows the saving. You keep the equipment already installed.
HDAC is the world’s first closed-loop AI optimisation controller for commercial packaged units. “Closed loop” means it checks the result of every change (electricity and cooling or heating) before the AI decides what to do next in real time.
34.8%
AVERAGE ANNUAL SAVINGS
VERIFIED BY CSIRO
40.6%
MEASURED SAVINGS AT A SYDNEY OFFICE AND CLASSROOM SITE
48.5%
MEASURED SAVINGS AT A BRISBANE RETAIL SHOWROOM
42.7%
MEASURED SAVINGS AT A BRISBANE QUICK SERVICE RESTAURANT
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WHAT HDAC ACTUALLY DOES
Measure the input.
Measure the output.
Optimise both.
HDAC combines a modular controller, digital sensors and individual power meters. It measures electrical consumption and delivered heating or cooling across each refrigeration circuit, establishes a live performance baseline and autonomously adjusts the installed plant as conditions change.
The world’s first closed-loop AI optimisation controller for commercial package units, built to improve existing equipment, not replace it.
MEASURE → OPTIMISE → VERIFY
Know exactly what it
uses.
Power meters track the whole HVAC-R system and individual compressors, revealing runtime, cycling and real electrical consumption.
Closed-loop optimisation with
visible cause and effect.
Every control decision is grounded in measured system behaviour—not assumed performance or a
generic savings model.
● LIVE DATA → DETERMINISTIC DECISION → VERIFIED RESULT
02 · MEASURE OUTPUT
Know exactly what it
produces.
Pressure, temperature, humidity and air-speed sensors quantify delivered heating and cooling across each refrigeration circuit.
03 · OPTIMISE CONTROL
Improve both sides of
the equation.
Deterministic AI adapts control in real time while preserving comfort, generating a traceable performance and savings record.
01 · MEASURE INPUT
Designed for installed plant: the modular system suits packaged units, DX split systems, chillers, commercial buildings, industrial facilities and data centres. Remote SDAQ modules can instrument components located away from the main controller. Its AE909 technology has also been recognised through an Australian Defence innovation award.
UPS-M01 + PDAQ
Power and resilience
The evidence layer. Per-compressor and system power measurement, with isolated 24V supply and safe shutdown protection.
HDAC-M01
One platform, instrumented down to every circuit.
SDAQ-M01
MODULAR SYSTEM ARCHITECTURE
HDAC is DIN-rail compatible and expands with SDAQ sensor modules to match the number and physical layout of refrigeration circuits.
HDAC controller
The intelligence layer. Connects sensors, power data, HVAC controls, BMS, Ethernet and 4G. One controller supports up to 16 circuits.
Sensor acquisition
The measurement layer. Eight auto-recognition sensor ports per module capture pressure, pipe temperature, humidity and air speed.
ESG evidence
High-resolution energy and emissions data supports transparent savings verification, CO₂ reporting and long-term sustainability planning.
Plant-life extension
Reduced stress and better control can extend equipment life. Cresstec estimates an additional 2.4 years when installed within the first five years of plant life.
Portfolio-to-Compressor visibility
Executive, service and daily dashboard views organise every site, unit and component—turning complex HVAC-R data into prioritised actions.
BEYOND ENERGY SAVINGS
Operational intelligence that keeps compounding.
Predictive maintenance
Continuous health analysis identifies failing compressors, fans and expansion devices, blocked coils and major refrigerant leaks before they become disruptive failures.
• Sydney office/classroom: 40.6% measured; payback improved from 3.88 to 2.39 years.
• Brisbane retail/showroom: 48.5% measured; payback improved from 3.32 to 1.86 years.
• Brisbane QSR: 42.7% measured; payback improved from 3.94
to 2.29 years.
• CSIRO verification: 34.8% average annual savings at an Australian Defence site, using IPMVP Option C.
$0 upfront. Positive cashflow from year one.
Across office/classroom, retail/showroom and quick-service restaurant sites, measured savings exceeded the forecast.
Measured case studies beat the pre-install estimate
3 of 3
A FUNDED PATH TO POSITIVE CASHFLOW
$0 upfront. Positive cashflow from year one.
Reference business case: two rooftop units totalling 130 kW, with a $19.60 daily business cost over 60 months. Ownership then transfers with no balloon payment. Delivery is subject to approval.
+$6,951
Year-one net cashflow
60 months
Then ownership transfers; zero balloon
60 months
Then ownership transfers; zero balloon payments
+$123,295
Ten year cumulative cashflow
Free assessment
Savings, cashflow, install scope and delivery pathway