Modernize your air handling unit without replacement
Modernize your air handling unit for higher energy efficiency and improved performance — without demolition, crane lifting or costly equipment replacement.
Is your AHU outdated and too expensive to replace?
In industrial and commercial facilities, most air handling units (AHUs) have become outdated. They operate inefficiently and create a wide range of challenges for facility operators:
High energy consumption and increasing operating costs
Significant efficiency loss during extreme heat and peak load conditions
Noisy, dusty operation with outdated hygiene standards
Obsolete control systems with limited controllability and automation
Use of environmentally harmful refrigerants, creating compliance issues with the EU F-Gas Regulation and other environmental requirements
Significant wear after 15 years, requiring frequent maintenance
AHU Retrofit: Unlock the full potential of your air handling unit!
The Oxyma AHU Retrofit Program offers a unique alternative to complete AHU replacement. Through comprehensive energy, hygiene, automation and aesthetic modernization, existing systems can be upgraded with minimal demolition work, no crane lifting and significantly reduced downtime risks.
The retrofit requires no major structural modifications. Our solutions integrate seamlessly into your existing AHU while maintaining the original airflow and external static pressure requirements.
Dramatic improvement in efficiency
The result is a future-ready air handling unit that delivers significantly better performance in terms of energy efficiency, system controllability, hygiene, operational reliability, and indoor comfort.
The AHU Retrofit Program goes far beyond replacing individual components or carrying out repairs. Every project begins with a detailed assessment of the existing AHU and identification of all potential upgrade opportunities. Based on this evaluation, we develop a customized modernization package tailored to your operational requirements, complemented by engineering consultancy and long-term aftercare services.
Comprehensive energy and tax consultancy
Weather-based energy and thermal performance calculations and simulations
Detailed on-site pre- and post-audits
EKR / TAO / HEM consultancy and energy certification (upon request)
Mechanical, automation and electrical engineering design
Optimized, application-specific solutions for your existing air handling unit
Modular system solution
Tailor-made AHU refurbishment programs
Scalable upgrade packages that can be implemented over multiple years
Hardware and software modernization from a single supplier
Our recommended best-selling retrofit packages
Ongoing professional support
Lifetime performance monitoring, continuous operation support, remote monitoring and service
Measurable and optimized energy savings
Performance guarantee and full project accountability
Identifying grant opportunities and green financing options
Long-term rental options
PPA, ESCO financing
AHU Retrofit packages
CORE
package
Core modernization including controls, high-efficiency ventilation and filtration.
Package includes
LIMA
HUPX and weather-based intelligent AHU control with ML functions.
EC Fan + Electrostatic filtration
High-efficiency EC fan upgrade combined with optimized filter pressure management.
BOOST
package
Core modernization with enhanced thermal performance.
Package includes
CORE package
Everything included in the CORE package
EnerCo
Epoxy-graphite coating for heat exchangers and heat recovery systems.
BALANCE
package
Humidification, post-cooling and hygiene improvements.
Package includes
BOOST package
Everything included in the BOOST package
Oxyma WMH
Evaporative media humidification and adiabatic post-cooling.
Aesthetic improvements
Interior and exterior cleaning, epoxy coating
PERFORMANCE
package
Maximum thermal optimization for peak system performance.
Package includes
BALANCE package
Everything included in the BALANCE package
HydroMX
Energy-efficient nanofluid additive for closed-loop heating and cooling systems.
Aesthetic improvements
Interior and exterior cleaning epoxy coating
Heat exchanger cleaning
Acid and alkaline cleaning
AHU Retrofit portfolio
In addition to our standard retrofit packages, every modernization solution is also available as an individual upgrade module. This allows you to improve the performance of your air handling unit exactly where it delivers the greatest benefit.
HUPX and weather-based intelligent control with ML functions.
Smart interface for local PLCs, enabling data collection, monitoring, weather-based control, and AI-driven self-optimization and diagnostics. It also enhances our energy and thermal simulation calculator, delivering even more accurate performance and savings forecasts.
Supply and exhaust side efficiency boost with EC fan technology
Boosting air handling unit efficiency with electrically driven fan walls. Thanks to stepless EC motor control, the system consistently delivers exactly the required output, with quiet, maintenance-free operation.
ROI <3 years
SAVINGS 15-25%
Pressure-optimized filters and electrostatic filters
Efficient electrostatic filtration with modular units for integration into air handling systems. Captures over 98% of fine particles while sterilizing the air. Its exceptionally low pressure drop enables more energy-efficient fan operation. No need for filter replacement, only occasional cleaning of the aluminum fins is required.
Improved heating efficiency
ROI <3 years
SAVINGS 10-20%
EnerCo graphite - epoxy heat exchanger coating
Ultrathin graphene-based carbon-polymer coating designed to boost the performance of industrial air handling and HVAC systems. It protects condenser coil surfaces from corrosion, UV exposure, and chemicals, while improving heat transfer and extending system lifespan.
ROI <3 years
SAVINGS 20-35%
Hydromx heat transfer nanofluid
A specialized Nano-Thermo technology fluid designed to dramatically improve the performance of closed-loop cooling and heating systems. It also protects against corrosion, scaling, bacteria, freezing, and cracking.
ROI <3 years
SAVINGS 15-25%
HeatTank phase-change thermal storage
A revolutionary, compact thermal battery that uses phase-change materials to store heat at application-specific temperatures, with high energy density and minimal heat loss.
Cooling efficiency improvement
ROI <3 years
SAVINGS 20-30%
AfterCooll post-cooling for air handling units
Adiabatic post-cooling technology retrofit for existing liquid chillers, designed to improve cooling capacity, reduce energy consumption and maintenance requirements, and extend system lifetime. Modular, easy-to-install evaporative media ensure consistently optimal microclimate conditions. improving cooling performance, to reduce energy consumption and maintenance, and to extend the system’s service life. Modular, easy-to-install evaporator inserts ensure an optimal microclimate at all times.
ROI <4 years
SAVINGS 20-30%
PreCooll adiabatic heat recovery precooling integrated into the exhaust air stream
Adiabatic precooling installed in the exhaust air stream of existing air handling units, enhancing performance, reducing energy use and maintenance, and extending system lifespan. The heat recovery module captures thermal energy from the extracted air and uses it to preheat the incoming fresh air.
ROI <5 years
SAVINGS 40-70%
IntrCooll precooling for air handling units
Two-stage adiabatic precooling technology installed on the intake side of existing air handling units.
It can serve as the primary cooling method for AHUs without cooling, or as a hybrid solution for units with existing cooling functions. Multiple units can be connected to a single air handling system.
Humidification efficiency improvement
ROI <3 years
SAVINGS 40-60%
Oxyma WMH evaporative media humidification
Our proprietary modular humidification wall systems use the natural power of water evaporation in a compact, space-efficient design. A highly efficient, multi-purpose alternative to energy-intensive thermal or steam-based humidification systems.
Aesthetics
Lifetime >10 years
Hygienic solutions
Internal epoxy flooring and wall coating
Lifetime >8 years
5-year warranty
External AHU panel powder coating
Lifetime >5 years
3-year warranty
Damper and damper actuator replacement
Lifetime >3 years
5-year warranty
Hinges, handles and panel seal replacement
Cleaning
Lifetime >2 years
With photo documentation
External and internal cleaning of air handling units
Lifetime >2 years
With photo documentation
External and internal cleaning of air duct systems
AHU Retrofit szolgáltatásaink
ROI <3 years
SAVINGS 20-40%
Supply and exhaust side efficiency boost with EC fan technology
Boosting air handling unit efficiency with electrically driven fan walls. Thanks to stepless EC motor control, the system consistently delivers exactly the required output, with quiet, maintenance-free operation.
ROI <3 years
SAVINGS 15-25%
Pressure-optimized filters and electrostatic filters
Efficient electrostatic filtration with modular units for integration into air handling systems. Captures over 98% of fine particles while sterilizing the air. Its exceptionally low pressure drop enables more energy-efficient fan operation. No need for filter replacement, only occasional cleaning of the aluminum fins is required.
ROI <3 years
SAVINGS 10-20%
EnerCo graphite - epoxy heat exchanger coating
Ultrathin graphene-based carbon-polymer coating designed to boost the performance of industrial air handling and HVAC systems. It protects condenser coil surfaces from corrosion, UV exposure, and chemicals, while improving heat transfer and extending system lifespan.
ROI <3 years
SAVINGS 20-35%
Hydromx heat transfer nanofluid
A specialized Nano-Thermo technology fluid designed to dramatically improve the performance of closed-loop cooling and heating systems. It also protects against corrosion, scaling, bacteria, freezing, and cracking.
ROI <3 years
SAVINGS 15-25%
HeatTank phase-change thermal storage
A revolutionary, compact thermal battery that uses phase-change materials to store heat at application-specific temperatures, with high energy density and minimal heat loss.
ROI <3 years
SAVINGS 20-30%
AfterCooll post-cooling for air handling units
Adiabatic post-cooling technology retrofit for existing liquid chillers, designed to improve cooling capacity, reduce energy consumption and maintenance requirements, and extend system lifetime. Modular, easy-to-install evaporative media ensure consistently optimal microclimate conditions. improving cooling performance, to reduce energy consumption and maintenance, and to extend the system’s service life. Modular, easy-to-install evaporator inserts ensure an optimal microclimate at all times.
ROI <4 years
SAVINGS 20-30%
PreCooll adiabatic heat recovery precooling integrated into the exhaust air stream
Adiabatic precooling installed in the exhaust air stream of existing air handling units, enhancing performance, reducing energy use and maintenance, and extending system lifespan. The heat recovery module captures thermal energy from the extracted air and uses it to preheat the incoming fresh air.
ROI <5 years
SAVINGS 40-70%
IntrCooll precooling for air handling units
Two-stage adiabatic precooling technology installed on the intake side of existing air handling units.
It can serve as the primary cooling method for AHUs without cooling, or as a hybrid solution for units with existing cooling functions. Multiple units can be connected to a single air handling system.
ROI <3 years
SAVINGS 40-60%
Oxyma WMH evaporative media humidification
Our proprietary modular humidification wall systems use the natural power of water evaporation in a compact, space-efficient design. A highly efficient, multi-purpose alternative to energy-intensive thermal or steam-based humidification systems.
Lifetime >10 years
Hygienic solutions
Internal epoxy flooring and wall coating
Lifetime >8 years
5-year warranty
External AHU panel powder coating
Lifetime >5 years
3-year warranty
Damper and damper actuator replacement
Lifetime >3 years
5-year warranty
Hinges, handles and panel seal replacement
Lifetime >2 years
With photo documentation
External and internal cleaning of air handling units
Lifetime >2 years
With photo documentation
External and internal cleaning of air duct systems
Innovation – through both our technologies and our process
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