ZECO Outdoor Air System (ZOAS)
“Pure Outdoor Air, Perfected for Indoors.”
ZOAS – ZECO Outdoor Air System or Dedicated Outdoor Air System ensures that your building breathes fresh & cleanroom, and conditioned outdoor air—independently from the recirculated air system. Engineered to meet the growing demand for indoor air quality, humidity control, and energy-efficient ventilation, ZOAS is your ideal solution for healthy, sustainable, and compliant building
Product USP’s
Dedicated Fresh Air Delivery with Built-in Dehumidification & Energy Recovery
Supplies exclusively outdoor air—filtered, cooled, dehumidified, and delivered with precision—to improve IAQ and meet ventilation mandates.
Equipped with DX/chilled water coils, electric/hot water heating, and optional dehumidifiers for precise climate control across seasons.
Reduces energy load with Heat Recovery Wheel, Plate Heat Exchanger, or Runaround Coil, recycling thermal energy from exhaust air.
Features G4, F7/F9, and optional HEPA filters for superior particulate removal—ideal for sensitive and high-occupancy zones.
CE (EN ISO 12100:2010, EN 60204-1:2018) and ISO 9001:2015 certified to ensure regulatory compliance and quality assurance.
Airflow capacities from 1,000 CFM to 60,000+ CFM, built to fit diverse applications from data centers to hospitality.
Key Highlights
Breath of Fresh Air—Engineered for Excellence
ZOAS is a purpose-built Dedicated Outdoor Air System designed to deliver 100% fresh, conditioned air independently of recirculated systems. Ideal for high-demand indoor environments, ZOAS ensures improved air quality, precise humidity and temperature control, and optimal energy savings.
It features integrated energy recovery modules, advanced filtration, corrosion-resistant construction, and EC or VFD-driven fans for efficient and silent operation. Available in a range of airflow capacities, ZOAS complies with global standards and offers the flexibility and reliability modern buildings need to ensure wellness, comfort, and sustainability.
- Supplies only treated outdoor air, enhancing indoor air quality (IAQ).
- Integrated Dehumidification
- Energy Recovery Options
- Advanced Filtration
- Humidity & Temperature Control
- Smart control with sensors.
- Quite operations.
- Improved Indoor Air Quality
- Effective Humidity Control
- Energy Efficiency
- Lower Operating Costs
- Compliance & Sustainability
- Reduce the HVAC system load
- Improves thermal comfort
- Airflow Capacity:
- Typically ranges from 5,000 CFM to 60,000+ CFM (customizable per requirement)
- Typically ranges from 5,000 CFM to 60,000+ CFM (customizable per requirement)
- Fresh Air Supply:
- 100% outdoor air intake, filtered and conditioned
- 100% outdoor air intake, filtered and conditioned
- Cooling Coil:
- DX or Chilled Water Coil for cooling and dehumidification
- DX or Chilled Water Coil for cooling and dehumidification
- Heating Coil:
- Electric / Hot Water / Steam Coil (optional, for preheating or reheat)
- Electric / Hot Water / Steam Coil (optional, for preheating or reheat)
- Energy Recovery:
Heat Recovery Wheel with Active & Passive wheel, Plate Heat Exchanger or Runaround Coil options
- Filtration Levels:
- G4 (Pre-filter), F7/F9 (Fine filter), optional HEPA filter
- Casing/Frame:
- Modular, double skin panel construction
- Extruded Aluminum Profile Frame Work (Thermal break & Non-Thermal break)
- Modular, double skin panel construction
- Insulation:
- 25 mm to 50 mm thick insulation with (PUF, Glasswool, Rockwool, PIR) (Density-40 kg/m3 (48 kg/m3, 64 kg/m3, 96 kg/m3 – Optional)
- Provides thermal insulation and acoustic insulation
- 25 mm to 50 mm thick insulation with (PUF, Glasswool, Rockwool, PIR) (Density-40 kg/m3 (48 kg/m3, 64 kg/m3, 96 kg/m3 – Optional)
- Base Frame:
- Heavy-duty steel or aluminum base
- Heavy-duty steel or aluminum base
- Panels:
- Removable or hinged access doors
- Inner skin: galvanized steel (pre-coated or powder coated), stainless steel, aluminum
- Outer skin: Pre-coated
- Removable or hinged access doors
- Drain Pan:
- Sloped stainless steel design
- Anti-corrosive and insulated to prevent condensation buildup
- Sloped stainless steel design
- Fan Section:
- EC or VFD-driven centrifugal fans
- Mounted on vibration-absorbing platforms
- Dynamically balanced for low-noise, high-efficiency airflow
- EC or VFD-driven centrifugal fans
- Coil Section:
- Copper tubes with aluminum fins
- Housed in corrosion-resistant frames with drain connections
- Copper tubes with aluminum fins
- Filter Section:
- Pre-filters in slide-in frames
- Fine filters, (HEPA filters, Carbon filters, Chemical Filters, Electronic Air Cleaner – optional)
- Easy access for replacement
- Pre-filters in slide-in frames
- CE Certified : (EN ISO 12100:2010, EN 60204-1:2018)
- ISO Certified : (ISO 9001:2015)
ZECO Air Engineering Solutions
Upgrade to ZOAS – Where Fresh Air Meets Smart Engineering.
At Zeco Aircon, we redefine air quality management with high-performance outdoor air handling units. Designed to meet the demanding ventilation needs of modern spaces, our fresh air handling units combine energy recovery, purification, and comfort control in one intelligent system.
Prioritize clean air and comfort in every corner of your building. Choose ZOAS for advanced ventilation that performs with precision and sustainability.
Industries & Applications
- Commercial Buildings
- Hospitality
- Retail & Shopping Malls
- IT & Data Centers
- HORECA
FAQ's
ZOAS supports multiple energy recovery options including Heat Recovery Wheels (enthalpy/sensible), Plate Heat Exchangers, and Runaround Coil Systems—each selected based on project-specific enthalpy recovery requirements and space constraints.
Yes, ZOAS can be fully integrated with Building Management Systems (BMS) using BACnet, Modbus, or LonWorks protocols for seamless control and monitoring.
Standard filtration includes G4 (pre-filter) and F7/F9 (fine filter). Optional upgrades include HEPA filters (H13/H14), activated carbon filters, chemical filters, and electronic air cleaners based on application needs.
Yes, all ZOAS units are equipped with EC or VFD-controlled centrifugal plug fans to ensure energy efficiency, low noise, and dynamic airflow regulation.
ZOAS includes a sloped stainless steel drain pan with insulation and anti-corrosive properties to ensure efficient drainage and prevent microbial growth in high RH environments.
ZOAS supports DX or chilled water coils for cooling and dehumidification, and electric, hot water, or steam coils for pre-heating or reheating functions as per climatic zone or seasonal demands.
Airflow is fully customizable from 1,000 CFM to 60,000+ CFM depending on project scale. Units can be modularly expanded or scaled to meet specific ventilation load calculations.
Yes, ZOAS complies with CE (EN ISO 12100:2010, EN 60204-1:2018) and ISO 9001:2015. It also supports compliance with ASHRAE 62.1, IGBC, and LEED criteria for indoor air quality and energy recovery.
ZOAS is ideal for facilities with strict IAQ requirements or where 100% outdoor air is mandated—such as healthcare, education, clean rooms, hospitality, IT/data centers, and transit hubs.
Depending on customization, lead times range from 4–8 weeks. Units are modular and can be configured for rooftop, indoor mechanical rooms, or floor-mounted installations with minimal site disruption.
