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 SAVING VERIFIED BY THE CSIRO
34.8%
QUICK SERVICE RESTAURANT
34.8%
SHOWROOM AND RETAIL
34.8%
OFFICE AND CLASSROOM
Add paragraph text. Click “Edit Text” to update the font, size and more. To change and reuse text themes, go to Site Styles.
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
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
01 · MEASURE INPUT
Know exactly what it uses.
Power meters track the whole HVAC-R system and individual compressors, revealing runtime, cycling and real electrical consumption.
02 · MEASURE OUTPUT
Know exactly what itproduces.
Pressure, temperature, humidity and air-speed sensors quantify delivered heating and cooling across each refrigeration circuit.
03 · OPTIMISE CONTROL
Improve both sides ofthe equation.
Deterministic AI adapts control in real time while preserving comfort, generating a traceable performance and savings record.
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.
One platform, instrumented down to every circuit.
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-M01
HDAC controller
The intelligence layer. Connects sensors, power data, HVAC controls, BMS, Ethernet and 4G. One controller supports up to 16 circuits.
SDAQ-M01
Sensor acquisition
The measurement layer. Eight auto-recognition sensor ports per module capture pressure, pipe temperature, humidity and air speed.
UPS-M01 + PDAQ
Power and resilience
The evidence layer. Per-compressor and system power measurement, with isolated 24V supply and safe shutdown protection.
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.
Portfolio-to-Compressor visibility
Executive, service and daily dashboard views organise every site, unit and component—turning complex HVAC-R data into prioritised actions.
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.
ESG evidence
High-resolution energy and emissions data supports transparent savings verification, CO₂ reporting and long-term sustainability planning.
3 of 3
Measured case studies beat the pre-install estimate
Across office/classroom, retail/showroom and quick-service restaurant sites, measured savings exceeded the forecast.
• 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.
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
+$123,295
Ten year cumulative cashflow
60 months
Then ownership transfers; zero balloon payments
Free assessment
Savings, cashflow, install scope and delivery pathway