High efficiency compact air-to-air rooftop units VECTIOS™ R-454C
High efficiency compact air-to-air rooftop units
VECTIOS™ R-454C
The VECTIOS R‑454C leads the transition to sustainable, future‑proof rooftop solutions by combining high seasonal efficiency with low‑GWP refrigerant R‑454C (GWP <150), significantly reducing overall carbon footprint.
A wide range of options allows perfect adaptation to any project, delivering maximum flexibility, indoor air quality and energy performance.
The ideal plug&play solution for cooling and heating applications, offering reliable operation, simplified installation and complete peace of mind.
Refrigerant: R-454C
Heating capacity: 23 to 49 kW
Cooling capacity: 22 to 50 kW
VECTIOS™ R-454C
Compact and autonomous rooftop air to air units delivering significantly reduced carbon footprint by combining high seasonal efficiency with low‑GWP refrigerant R‑454C (GWP <150)*, A2L class.
Fully packaged plug and play solution, integrating all components for reliable, easy-to-install and optimised air conditioning performance with extended scope from +50ºC Outdoor Ambient Conditions in Cooling up to -15ºC (-18ºC) in heating at full (partial) load.
IPJ series: Units for reversible heat pump operation.
R-454C refrigerant (GWP <150)*, A2L
6 sizes from 20 to 50kW
Variable-Speed Compressors
With extended operation limits up to 50ºC / up to -18ºC**, and extended airflow range.
* GWP <150 required for rooftops up to 50 kW from 2027
** at partial load (-15ºC at full load)
Low‑impact solution you can rely on
Stay ahead of F-Gas regulation compliance with R‑454C low refrigerant (GWP <150)*
Reduce your environmental footprint thanks to designed to support the reduction of direct and indirect CO₂ emissions through low GWP refrigerant and optimised efficiency
Rely on a solution designed for today and tomorrow, offering the right balance of safety and compliance with an A2L classified refrigerant.
Optimised performance to reduce your operating costs
Cut your energy bills with optimised part‑load performance, enabled by variable‑speed compressors
Benefit from enhanced seasonal efficiency (SEER / SCOP) thanks to advanced system design
Lower your energy consumption and reduce your total cost of ownership (TCO)
Flexible design to fit your project needs
Adapt the solution to your requirements with a wider range of configurations and options (airflow, free cooling, heat recovery…)
Rely on a scalable solution that fits a variety of project application types
Simplify your projects with a system designed for easy integration in both new and retrofit installations
Reliable performance with fast and easy installation
Save time on installation with a plug‑and‑play solution and factory‑programmed controls
Ensure long‑term peace of mind thanks to a robust design using high-end components
Maintain reliable operation even in demanding environments, from −18°C** up to +50°C
* GWP <150 required for rooftops up to 50 kW from 2027
** at partial load (-15ºC at full load)
Future-ready rooftop with reduced environmental impact
The VECTIOS R‑454C supports the rooftop transition to lower-GWP refrigerants in alignment with F-GAS, helping reduce direct and indirect environmental impact, while keeping refrigerants an A2L low-flammability classification.
High seasonal efficiency for lower operating costs
Designed to deliver outstanding SEER and SCOP performance (+3% vs VECTIOS R-454B), the range exceeds Ecodesign requirements under Regulation EU 2016/2281 (up to 49% in SEER / 15% in SCOP) and helps reduce energy consumption.
Compact design, reducing on-site footprint and facilitating renovation projects
The new R‑454C range keeps the compact footprint of previous VECTIOS R-410A and R-454B units, helping simplify replacement projects where roof space is limited.
Advanced variable-speed technology
Hermetic scroll compressors with variable-speed operation improve stage management and part-load efficiency, while the suction line heat exchanger optimises refrigerant conditions and contributes to improved system performance
Efficient airflow management
Supply EC plug fans provide precise airflow control , soft-start functionality , and can be configured for constant or variable airflow. The calibrated fan intake section and differential pressure sensor support airflow measurement and precise control with dirty-filter compensation.
Smart outdoor fan operation
EC axial fans adapt their speed according to outdoor ambient conditions and operating mode, helping reduce fan energy consumption while maintaining reliable operation.
Reliable operation across seasons
The unit is designed for a wide outdoor operating range, with cooling operation up to +50 °C and heating operation down to-18 °C wet bulb at partial load (-15ºC at full load), making it suitable for demanding climate conditions.
One packaged system for many applications
VECTIOS R‑454C offers a flexible packaged solution able to address multiple project needs: free-cooling, energy recovery, fresh air management, CO₂-based ventilation, filtration, overpressure control, auxiliary heating (electrical, hot water or burner), humidity control, multi-zone control, low-temperature applications, lead/lag operation, energy meters, smoke detection, anti-corrosion options, communication , supervision and much more.
Designed to support indoor air quality
The range contributes to healthier indoor environments through fresh air management, filtration options, CO₂ sensors, airflow control and humidity management.
Plug & play installation and easier commissioning
The unit integrates all key components in one factory-assembled packaged system. It is fully programmed and set up from the factory with intelligent VECTIC control, helping reduce installation complexity and simplify commissioning.
Factory-programmed intelligent control
Units are fully programmed and set up from the factory with the intelligent VECTIC control, supporting fast commissioning, reliable and efficient operation.
Open communication with BMS systems
Standard communication ports — RS485 and Ethernet — allow connection to centralised BMS systems using Modbus and BACnet protocols.
Built-in web monitoring and data logging
A standard web tool enables users to monitor unit status and access data logging functions, supporting easier operation and maintenance follow-up.
Scalable supervision and cloud connectivity
The range could be complemented with local supervision solutions such as BOSS mini for up to 50 units and BOSS for up to 300 units. And can be also connected to Carrier Abound HVAC Performance, linking HVAC equipment to Carrier’s cloud platform for real-time visibility, alerts and performance insights to help improve uptime, optimise operation and support predictive maintenance.
VECTIOS™ R-454C
Compact and autonomous rooftop air to air units delivering significantly reduced carbon footprint by combining high seasonal efficiency with low‑GWP refrigerant R‑454C (GWP <150)*, A2L class.
Fully packaged plug and play solution, integrating all components for reliable, easy-to-install and optimised air conditioning performance with extended scope from +50ºC Outdoor Ambient Conditions in Cooling up to -15ºC (-18ºC) in heating at full (partial) load.
IPJ series: Units for reversible heat pump operation.
R-454C refrigerant (GWP <150)*, A2L
6 sizes from 20 to 50kW
Variable-Speed Compressors
With extended operation limits up to 50ºC / up to -18ºC**, and extended airflow range.
* GWP <150 required for rooftops up to 50 kW from 2027
** at partial load (-15ºC at full load)
Low‑impact solution you can rely on
Stay ahead of F-Gas regulation compliance with R‑454C low refrigerant (GWP <150)*
Reduce your environmental footprint thanks to designed to support the reduction of direct and indirect CO₂ emissions through low GWP refrigerant and optimised efficiency
Rely on a solution designed for today and tomorrow, offering the right balance of safety and compliance with an A2L classified refrigerant.
Optimised performance to reduce your operating costs
Cut your energy bills with optimised part‑load performance, enabled by variable‑speed compressors
Benefit from enhanced seasonal efficiency (SEER / SCOP) thanks to advanced system design
Lower your energy consumption and reduce your total cost of ownership (TCO)
Flexible design to fit your project needs
Adapt the solution to your requirements with a wider range of configurations and options (airflow, free cooling, heat recovery…)
Rely on a scalable solution that fits a variety of project application types
Simplify your projects with a system designed for easy integration in both new and retrofit installations
Reliable performance with fast and easy installation
Save time on installation with a plug‑and‑play solution and factory‑programmed controls
Ensure long‑term peace of mind thanks to a robust design using high-end components
Maintain reliable operation even in demanding environments, from −18°C** up to +50°C
* GWP <150 required for rooftops up to 50 kW from 2027
** at partial load (-15ºC at full load)
Future-ready rooftop with reduced environmental impact
The VECTIOS R‑454C supports the rooftop transition to lower-GWP refrigerants in alignment with F-GAS, helping reduce direct and indirect environmental impact, while keeping refrigerants an A2L low-flammability classification.
High seasonal efficiency for lower operating costs
Designed to deliver outstanding SEER and SCOP performance (+3% vs VECTIOS R-454B), the range exceeds Ecodesign requirements under Regulation EU 2016/2281 (up to 49% in SEER / 15% in SCOP) and helps reduce energy consumption.
Compact design, reducing on-site footprint and facilitating renovation projects
The new R‑454C range keeps the compact footprint of previous VECTIOS R-410A and R-454B units, helping simplify replacement projects where roof space is limited.
Advanced variable-speed technology
Hermetic scroll compressors with variable-speed operation improve stage management and part-load efficiency, while the suction line heat exchanger optimises refrigerant conditions and contributes to improved system performance
Efficient airflow management
Supply EC plug fans provide precise airflow control , soft-start functionality , and can be configured for constant or variable airflow. The calibrated fan intake section and differential pressure sensor support airflow measurement and precise control with dirty-filter compensation.
Smart outdoor fan operation
EC axial fans adapt their speed according to outdoor ambient conditions and operating mode, helping reduce fan energy consumption while maintaining reliable operation.
Reliable operation across seasons
The unit is designed for a wide outdoor operating range, with cooling operation up to +50 °C and heating operation down to-18 °C wet bulb at partial load (-15ºC at full load), making it suitable for demanding climate conditions.
One packaged system for many applications
VECTIOS R‑454C offers a flexible packaged solution able to address multiple project needs: free-cooling, energy recovery, fresh air management, CO₂-based ventilation, filtration, overpressure control, auxiliary heating (electrical, hot water or burner), humidity control, multi-zone control, low-temperature applications, lead/lag operation, energy meters, smoke detection, anti-corrosion options, communication , supervision and much more.
Designed to support indoor air quality
The range contributes to healthier indoor environments through fresh air management, filtration options, CO₂ sensors, airflow control and humidity management.
Plug & play installation and easier commissioning
The unit integrates all key components in one factory-assembled packaged system. It is fully programmed and set up from the factory with intelligent VECTIC control, helping reduce installation complexity and simplify commissioning.
Factory-programmed intelligent control
Units are fully programmed and set up from the factory with the intelligent VECTIC control, supporting fast commissioning, reliable and efficient operation.
Open communication with BMS systems
Standard communication ports — RS485 and Ethernet — allow connection to centralised BMS systems using Modbus and BACnet protocols.
Built-in web monitoring and data logging
A standard web tool enables users to monitor unit status and access data logging functions, supporting easier operation and maintenance follow-up.
Scalable supervision and cloud connectivity
The range could be complemented with local supervision solutions such as BOSS mini for up to 50 units and BOSS for up to 300 units. And can be also connected to Carrier Abound HVAC Performance, linking HVAC equipment to Carrier’s cloud platform for real-time visibility, alerts and performance insights to help improve uptime, optimise operation and support predictive maintenance.
