ONYX Aero
ONYX Aero 70
Combined dehumidification, filtered fresh-air supply, exhaust air and total-heat energy recovery in one concealed ducted unit.
Fresh-air treatment, ventilation and dehumidification with total-heat recovery
Aero 70 is intended where continuous fresh-air treatment matters. Outgoing conditioned air helps precondition incoming hot and humid outdoor air through the total-heat exchange core, which may reduce the load on the dehumidifier and the air-conditioning system compared with untreated direct fresh-air introduction.
Aero 70 moves two separated air streams. Stale indoor air is extracted and passed through the total-heat exchange core on its way outdoors, while incoming outdoor air passes through the other side of the same core and is filtered before it enters the space. The core transfers heat and moisture energy between the two separated air streams; the streams themselves do not mix. A refrigerant dehumidification module removes moisture from recirculated indoor air, or from a mixture of indoor and outdoor air, and condensate is discharged through a drainage line.
- Dehumidification capacity up to 70 L/day at 30 °C and 80% RH
- Recirculation airflow approximately 550 m³/h in dehumidification operation
- Filtered fresh-air supply up to 450 m³/h with balanced exhaust up to 400 m³/h
- Total-heat (enthalpy) recovery between the separated outgoing and incoming air streams
- Four confirmed operating functions with automatic switching
Technical data
Published figures only.
- Dehumidification capacity
- Up to 70 L/day
At 30 °C and 80% RH, indoor recirculation dehumidification mode (manufacturer manual).
- Recirculation airflow (dehumidification)
- 550 m³/h
Manufacturer manual.
- External static pressure (dehumidification)
- 115 Pa
Measured at rated airflow.
- Fresh-air volume
- 450 / 315 / 225 m³/h (high / medium / low)
Manufacturer manual.
- Exhaust-air volume
- 400 / 280 / 200 m³/h (high / medium / low)
Manufacturer manual.
- External static pressure, fresh air / exhaust
- 115 Pa / 90 Pa
Measured at rated airflow.
- Power input
- 950 W in purification and dehumidification operation · 270 W in fresh-air operation
Measured at rated airflow.
- Power supply
- 220–240 V, 50 Hz, single phase
- Sound level
- 39 dB(A) dehumidification · 40 dB(A) fresh-air operation
Measured 1.5 m below the centre of the unit in a semi-anechoic chamber to GB/T 21087-2020.
- Enthalpy exchange efficiency
- 56% summer · 66% winter
Enthalpy exchange efficiency under rated test conditions. This is not a reduction in electricity consumption or running cost.
- Heat recovery
- Graphene total-heat exchange core
Transfers heat and moisture energy between separated air streams; it does not filter the air.
- Fans
- EC/DC fans
- Refrigerant
- R410A
- Filtration
- G4 primary (exhaust) · F6 medium efficiency · H12 high efficiency (fresh air)
- Duct connections
- Indoor side Ø200 mm · outdoor side Ø160 mm
- Unit dimensions (L × W × H)
- 1350 × 820 × 280 mm
Excluding duct spigots.
- Weight
- 85 kg
- Operating range
- Dehumidification 15–32 °C · fresh-air operation −10 to 40 °C
Storage and transport −20 to 60 °C.
- Installation
- Concealed, ducted, ceiling-mounted by qualified technicians
- Condensate
- Discharged through a drainage line with an integrated lift pump
Full technical specifications are available following project consultation.
Capacity figures apply under rated conditions.
Installation architecture
Separate concealed ducted system with dedicated indoor supply and return ducts and dedicated outdoor intake and exhaust ducts, installed independently of the air-conditioning system.
Most ONYX NOVA solutions are concealed ducted systems installed separately from the air-conditioning system. ONYX Zenith may also be integrated into an air-conditioning or wider HVAC system where the project design allows.
Confirmed operating functions
- Filtered fresh-air supply — outdoor air is filtered and supplied to the space
- Exhaust air — stale indoor air is extracted and discharged outdoors
- Recirculation dehumidification — indoor air is recirculated through the dehumidification module
- Mixed-air dehumidification — outdoor air combined with indoor return air is dehumidified
- Total-heat (enthalpy) recovery operates between the separated supply and exhaust streams
- In automatic operation the unit switches between these states according to indoor and outdoor conditions
Filtration stages
- G4 primary filter on the exhaust-air path
- F6 medium-efficiency filter
- H12 high-efficiency filter on the fresh-air path
- The total-heat exchange core is an energy-transfer component, not a filtration stage
Controls
- Dedicated LCD control panel
- RS485 communication using the Modbus protocol for integration with a higher-level controller
- Automatic mode selects the operating state from indoor and outdoor sensor readings
Maintenance
- The primary filter is washable; the medium- and high-efficiency filters are replacement items
- The total-heat exchange core can be vacuumed or rinsed at low pressure and must be fully dried in shade before refitting
- Filter inspection, cleaning and replacement intervals depend on operating hours, dust load and site conditions. Follow the maintenance schedule established during commissioning and use approved replacement filters.
- High-pressure water must never be used on the core or the filters
- The unit must be isolated from the power supply before any maintenance
Installation requirements (for professionals)
- Maintenance access panel of at least 600 × 450 mm on the service-door side
- At least 100 mm clearance above the unit and at least 60 mm below it to the false ceiling
- Level suspension on M10 threaded rods, checked with a spirit level
- Outdoor intake and exhaust ducts must be insulated and terminated with rain hoods and insect mesh
- Duct runs should limit bends, use radiused elbows and keep spigot diameters unchanged
- If the unit may have been transported or stored tilted, allow it to stand for two hours before starting dehumidification
Important engineering limitations
- Aero is installed independently of the air-conditioning system, with its own ductwork
- Recovery performance depends on outdoor conditions, airflow rates and system design
- Fresh-air and exhaust volumes fall as duct resistance rises with length, reduced diameter or additional bends
- Selection follows a review of the property, fresh-air requirement, moisture load and duct design
Technical notes
- Specifications on this page are taken from the manufacturer product manual for ONYX Aero 70.
- Enthalpy exchange efficiency figures apply under rated test conditions and are not a claim of reduced electricity consumption or running cost.
- Fresh-air capability is not exclusive to Aero — Core 70 and Core 120 also process a controlled quantity of fresh air mixed with indoor return air.
Technical note: Final equipment selection and expected performance depend on site conditions, system design, outdoor-air conditions and professional assessment.
Talk to a specialist
Leave your contact details and an ONYX NOVA specialist will contact you to discuss your property and the most appropriate next step.
Solutions
Where this unit is typically applied.
Villas and Private Residences
Zoned humidity control across floors, wardrobes, wet areas and rarely used rooms.
Read moreNew Construction and Renovation
Plan humidity control before ceilings close.
Read moreHotels and Hospitality
Zoned humidity control and air treatment planned around hotel operations.
Read moreRelated reading
Background reading.
Dehumidifier versus air conditioner: what is the difference?
Both treat air, but they are controlled by different variables and are designed for different outcomes.
Read articleHow does outdoor fresh air increase indoor humidity?
Fresh air is necessary for indoor air quality. Untreated, outdoor air in the UAE also carries a significant moisture load indoors.
Read articleCore versus Aero: which system is appropriate?
Core is recirculation-led with controlled fresh-air mixing. Aero is fresh-air-oriented with integrated energy recovery.
Read article